A device for measuring the setting time of concrete mixed with water reducing agent
By rationally arranging the device base, shell, curing chamber, testing chamber, and quick-change needle Vicat apparatus, combined with a constant temperature circulating water system and a limit frame, the problems of existing equipment relying on manual operation and poor terrain adaptability have been solved, achieving efficient and accurate measurement of concrete setting time.
Patent Information
- Application Number
- CN202521797468.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-22
AI Technical Summary
Existing concrete setting time testing equipment relies on manual experience for operation, is easily affected by the environment, resulting in poor reproducibility and large deviations in measurement results. In addition, the equipment is large in size, limiting its application scenarios and making it difficult to adapt to complex terrains.
An arrangement structure including a device base, housing, curing chamber, testing chamber, and quick-change needle Vicat apparatus was designed. Combined with a constant temperature circulating water system, it is equipped with leveling bolts and a level to ensure the horizontality of the device and the verticality of the measurement. Stable measurement is achieved through the cooperation of a limit frame and a limit groove.
It improves measurement efficiency and accuracy, reduces costs, adapts to complex terrain, ensures the consistency and stability of measurement results, and is simple to operate and easy to maintain.
Smart Images
Figure CN224682032U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cement and concrete setting time testing equipment, specifically relating to the arrangement structure of a setting time testing device for concrete with water-reducing agent. Background Technology
[0002] Water-reducing agents are concrete admixtures that reduce the amount of mixing water while maintaining a relatively constant slump. Adding water-reducing agents to concrete improves its workability, reduces the unit water consumption, and enhances the fluidity of the concrete mixture. The setting time of concrete with water-reducing agents is a key parameter affecting its workability and construction performance; accurate determination of the setting time is crucial for the quality of building projects, construction efficiency, and material compatibility.
[0003] Currently, existing concrete setting time testing equipment mainly involves manual testing of the initial and final setting times of standard consistency concrete samples in a laboratory environment using a Vicat apparatus. This operation relies on human experience and is easily affected by operating techniques and ambient temperature, resulting in poor reproducibility and large fluctuations in measurement data. On the other hand, using professional automated testing instruments presents limitations in application scenarios due to their large size. Furthermore, existing testing instruments are difficult to adapt to complex terrain conditions and cannot ensure horizontal and fixed measurement, leading to significant deviations in the final measurement results. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a structure for determining the setting time of concrete with water-reducing agent. The structure is compact, highly integrated, simple to operate, and easy to use and maintain. It can greatly improve the measurement efficiency and the accuracy of the measurement results, and save measurement costs.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] A device arrangement for determining the setting time of water-reducing concrete includes a device base 1 and a device housing 2. The inner cavity of the device housing 2 is divided into a curing chamber 21 and a testing chamber 22. The front walls of the curing chamber 21 and the testing chamber 22 are respectively provided with a curing chamber door 24 and a testing chamber door 25. Multiple sample buckets 5 containing concrete samples to be tested with water-reducing concrete are placed in the curing chamber 21, and a constant temperature circulating water system 6 is provided in the curing chamber 21. A quick-change needle Vicat apparatus 3 is installed in the testing chamber 22. Multiple base leveling bolts 4 are installed at the bottom of the device base 1, and multiple levels 41 are installed circumferentially on the outer wall of the device housing 2.
[0007] Preferably, the quick-change needle Vicat instrument 3 includes a fixed outer slide groove 31 fixedly connected to the top of the detection chamber 22, a liftable inner slide groove 32 slidably arranged in the fixed outer slide groove 31 along the vertical direction, a slider 34 slidably arranged in the liftable inner slide groove 32 along the vertical direction, and a probe 343 is installed at the bottom of the slider 34.
[0008] Preferably, the front end face of the fixed outer slide groove 31 is provided with a covering piece 312 for slidingly covering the liftable inner slide groove 32, and a scale 311 is installed on the side of the fixed outer slide groove 31.
[0009] Preferably, the inner wall of the liftable inner slide 32 is provided with a lateral locking groove 321 in the vertical direction, the front end face of the slider 34 is connected to a push plate 341 by a spring, and the side of the push plate 341 is equipped with a locking block 342 that is adapted to the lateral locking groove 321.
[0010] Preferably, when the push plate 341 is pressed down, the locking block 342 separates from the lateral locking groove 321, thereby pushing the slider 34 to slide downward along the liftable inner slide groove 32, so that the probe mounting seat at the bottom of the slider 34 protrudes from the bottom end of the liftable inner slide groove 32, making it convenient to replace the probe 343.
[0011] When the push plate 341 pops up, it causes the locking block 342 to engage with the lateral locking groove 321, thereby fixing the slider 34 to the liftable inner slide groove 32.
[0012] Preferably, a probe mounting plate 33 is installed on the side wall of the detection chamber 22.
[0013] Preferably, a circular limiting groove 51 is provided on the outer wall of the sample barrel 5, and a limiting frame 52 is vertically installed at the measurement point directly below the quick-change needle Vicat apparatus 3. A limiting rod 53 with a height and size that are adapted to the circular limiting groove 51 is horizontally connected to the limiting frame 52.
[0014] Preferably, the bottom of the device base 1 is also equipped with a plurality of rollers 42, which are used to drive the device as a whole to move after the base leveling bolt 4 is screwed into the device base 1 to a preset depth.
[0015] Preferably, the constant temperature circulating water system 6 includes a circulating water heater 61 installed in the curing chamber 21. The circulating water heater 61 is connected to a circulating water heat conduction coil 62 laid on the upper surface of the device base 1. A temperature monitoring sensor 63 is installed in the curing chamber 21. Both the circulating water heater 61 and the temperature monitoring sensor 63 are electrically connected to a touch screen display 23 installed on the outer wall of the device housing 2.
[0016] Compared with the prior art, the present invention has the following main advantages:
[0017] 1. This utility model has a compact overall structure and high functional integration through the reasonable arrangement of the device base, device shell, curing chamber, testing chamber, quick needle change Vicat instrument and constant temperature circulating water system. It can save a lot of space, and the device is simple to operate and easy to use and maintain. It can effectively improve the measurement efficiency and accuracy of water-reducing agent concrete, and save measurement costs.
[0018] 2. This utility model, by setting a leveling bolt on the base of the device in conjunction with a level, can quickly adjust the horizontal state of the device, making the device adaptable to various complex terrains and meeting the verticality requirements of the Vicat stylus measurement process. Furthermore, by cooperating the limiting frame and limiting rod in the detection chamber with the circular limiting groove on the sample barrel, the stability of the measurement process and the consistency of the measurement points can be ensured.
[0019] 3. The device of this utility model has a reasonable overall structure design, is easy to operate, easy to manufacture and maintain, and has strong practicality and promotion value. Attached Figure Description
[0020] Figure 1 This is an overall schematic diagram of the arrangement structure of the portable integrated condensation time measuring device in this embodiment of the present invention.
[0021] Figure 2 This is a schematic diagram of the structure of the quick-needle-changing Vicat apparatus in the embodiment of this utility model;
[0022] Figure 3 This is a schematic diagram of the probe style in an embodiment of this utility model;
[0023] Figure 4 This is a schematic diagram of the arrangement of the circulating water heat conduction coil in an embodiment of this utility model.
[0024] In the diagram: 1-Device base; 2-Device housing; 21-Curing chamber; 22-Testing chamber; 23-Touchscreen display; 24-Curing chamber door; 25-Testing chamber door; 3-Quick needle-changing Vicat apparatus; 31-Fixed external slide rail; 311-Scale; 312-Covering sheet; 32-Liftable internal slide rail; 321-Side locking groove; 33-Stylus hanging plate; 34-Slider; 341-Press-type push plate; 342-Locking block; 343-Stylus; 4-Base leveling bolt; 41-Level; 42-Roller; 5-Sample container; 51-Circular limiting groove; 52-Limiting frame; 53-Limiting rod; 6-Constant temperature circulating water system; 61-Circulating water heater; 62-Circulating water heat conduction coil; 63-Temperature monitoring sensor. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0028] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 application is in use. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.
[0029] The features and performance of this application will be further described in detail below with reference to the embodiments.
[0030] Example 1: This example provides a structure for determining the setting time of concrete with water-reducing agents, such as... Figures 1-4 As shown, it includes: a device base 1 and a device housing 2. The inner cavity of the device housing 2 is divided into a curing chamber 21 and a testing chamber 22. The front walls of the curing chamber 21 and the testing chamber 22 are respectively provided with a curing chamber door 24 and a testing chamber door 25.
[0031] The curing chamber 21 contains multiple sample buckets 5 filled with concrete samples to be tested using water-reducing agents, and the curing chamber 21 is equipped with a constant temperature circulating water system 6. The testing chamber 22 is equipped with a quick-change needle Vicat apparatus 3. The bottom of the device base 1 is equipped with multiple base leveling bolts 4, and the outer wall of the device housing 2 is equipped with multiple levels 41 along the circumferential direction.
[0032] Furthermore, the quick-change needle Vicat instrument 3 includes a fixed outer slide groove 31 fixedly connected to the top of the detection chamber 22, a liftable inner slide groove 32 slidably arranged in the fixed outer slide groove 31 along the vertical direction, a slider 34 slidably arranged in the liftable inner slide groove 32 along the vertical direction, and a probe 343 is installed at the bottom of the slider 34.
[0033] Furthermore, the front end face of the fixed outer slide groove 31 is provided with a covering piece 312 for slidingly covering the liftable inner slide groove 32, and a scale 311 is installed on the side of the fixed outer slide groove 31.
[0034] Furthermore, the inner wall of the liftable inner slide 32 is provided with a lateral snap-fit groove 321 in the vertical direction, and the front end face of the slider 34 is connected to a push plate 341 by a spring. The side of the push plate 341 is equipped with a snap-fit block 342 that is compatible with the lateral snap-fit groove 321.
[0035] Furthermore, when the push plate 341 is pressed down, the locking block 342 separates from the lateral locking groove 321, thereby pushing the slider 34 to slide downward along the liftable inner slide groove 32, so that the probe mounting seat at the bottom of the slider 34 protrudes from the bottom end of the liftable inner slide groove 32, making it convenient to replace the probe 343.
[0036] When the push plate 341 pops up, it causes the locking block 342 to engage with the lateral locking groove 321, thereby fixing the slider 34 to the liftable inner slide groove 32.
[0037] Furthermore, a probe mounting plate 33 is installed on the side wall of the detection chamber 22.
[0038] Furthermore, a circular limiting groove 51 is provided on the outer wall of the sample barrel 5, and a limiting frame 52 is vertically installed at the measurement point directly below the quick-change needle Vicat instrument 3. A limiting rod 53 with a height and size that are adapted to the circular limiting groove 51 is horizontally connected to the limiting frame 52.
[0039] Furthermore, the bottom of the device base 1 is also equipped with a plurality of rollers 42, which are used to drive the device as a whole to move after the base leveling bolts 4 are screwed upward into the device base 1 to a preset depth.
[0040] Furthermore, the constant temperature circulating water system 6 includes a circulating water heater 61 installed in the curing chamber 21. The circulating water heater 61 is connected to a circulating water heat conduction coil 62 laid on the upper surface of the device base 1. A temperature monitoring sensor 63 is installed in the curing chamber 21. Both the circulating water heater 61 and the temperature monitoring sensor 63 are electrically connected to a touch screen display 23 installed on the outer wall of the device housing 2.
[0041] Example 2: This example provides an arrangement structure for a water-reducing agent concrete setting time determination device. The device housing 2 is a box-type structure. A touch screen display 23 is installed on the outside of one side of the box-type structure. The front of the box-type structure is respectively provided with an openable curing chamber door 24 and a testing chamber door 25. The curing chamber door 26 and the testing chamber door 27 can be opened outward. Under normal circumstances, most sample barrels 5 are placed in the constant temperature and humidity curing chamber 21 for curing. When testing the setting time, the sample barrel 5 to be tested is transferred to the testing chamber 22 for testing.
[0042] Furthermore, a limiting frame 52 and a limiting rod 53 are installed at the measurement points inside the testing chamber 22. During testing, the limiting rod 53 is inserted into the circular groove 51 of the sample barrel to fix the sample barrel in place, preventing displacement during the test and avoiding unnecessary measurement deviations. The sample barrel has a frustum structure, and the required sample barrel structure can be flexibly selected according to the specific experimental conditions.
[0043] Furthermore, the testing chamber 22 is equipped with a quick-change needle Vicat apparatus 3, which measures whether the sample has set by observing the settlement depth of the probe 343 in the concrete sample and records the setting time.
[0044] Furthermore, the probe 343 can be quickly replaced according to different testing requirements, such as... Figure 3 As shown in this embodiment, the replaceable probe includes two Fica probes and four penetration probes, all with standard cross-sectional areas. Except for the probe used for the final condensation test, the remaining probes all have a limiting device in the middle to prevent the probe from bending due to excessive downward pressure. The limiting device is 40 mm away from the bottom of the probe.
[0045] Furthermore, the device base 1 is equipped with a constant temperature circulating water system 6, which includes a circulating water heater 61 and a temperature monitoring sensor 63. The circulating water heater is connected to the circulating water heat conduction coil laid on the upper surface of the device base to increase the heat transfer rate.
[0046] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.
[0047] In summary:
[0048] 1. This utility model has a compact overall structure and high functional integration through the reasonable arrangement of the device base, device shell, curing chamber, testing chamber, quick needle change Vicat instrument and constant temperature circulating water system. It can save a lot of space, and the device is simple to operate and easy to use and maintain. It can effectively improve the measurement efficiency and accuracy of water-reducing agent concrete, and save measurement costs.
[0049] 2. This utility model, by setting a leveling bolt on the base of the device in conjunction with a level, can quickly adjust the horizontal state of the device, making the device adaptable to various complex terrains and meeting the verticality requirements of the Vicat stylus measurement process. Furthermore, by cooperating the limiting frame and limiting rod in the detection chamber with the circular limiting groove on the sample barrel, the stability of the measurement process and the consistency of the measurement points can be ensured.
[0050] 3. The device of this utility model has a reasonable overall structure design, is easy to operate, easy to manufacture and maintain, and has strong practicality and promotion value.
[0051] The above embodiments are only used to illustrate the design concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The protection scope of this utility model is not limited to the above embodiments. Therefore, all equivalent changes or modifications made based on the principles and design ideas disclosed in this utility model are within the protection scope of this utility model.
Claims
1. A structure for determining the setting time of concrete with water-reducing agent, characterized in that: The device includes a base (1) and a housing (2). The inner cavity of the housing (2) is divided into a curing chamber (21) and a testing chamber (22). The front walls of the curing chamber (21) and the testing chamber (22) are respectively provided with a curing chamber door (24) and a testing chamber door (25). The curing chamber (21) contains multiple sample buckets (5) filled with concrete samples to be tested with water-reducing agents. The curing chamber (21) is equipped with a constant temperature circulating water system (6). The testing chamber (22) is equipped with a quick-change needle Vicat apparatus (3). The bottom of the base (1) is equipped with multiple base leveling bolts (4). The outer wall of the housing (2) is equipped with multiple levels (41) along the circumference.
2. The measuring device arrangement structure according to claim 1, characterized in that: The quick-change needle Vicat instrument (3) includes a fixed outer slide groove (31) fixedly connected to the top of the detection chamber (22), a liftable inner slide groove (32) is slidably arranged in the vertical direction in the fixed outer slide groove (31), a slider (34) is slidably arranged in the vertical direction in the liftable inner slide groove (32), and a probe (343) is installed at the bottom of the slider (34).
3. The measuring device arrangement structure according to claim 2, characterized in that: The front end face of the fixed outer slide groove (31) is provided with a covering piece (312) for slidingly covering the liftable inner slide groove (32), and a scale (311) is installed on the side of the fixed outer slide groove (31).
4. The measuring device arrangement structure according to claim 2, characterized in that: The inner wall of the liftable inner slide (32) is provided with a lateral snap-fit groove (321) in the vertical direction. The front end face of the slider (34) is connected to a push plate (341) by a spring. The side of the push plate (341) is equipped with a snap-fit block (342) that is compatible with the lateral snap-fit groove (321).
5. The measuring device arrangement structure according to claim 4, characterized in that: When the push plate (341) is pressed down, the locking block (342) separates from the side locking groove (321), thereby pushing the slider (34) to slide down along the liftable inner slide groove (32), so that the probe mounting seat at the bottom of the slider (34) protrudes from the bottom end of the liftable inner slide groove (32), making it easy to replace the probe (343). When the push plate (341) pops up, it causes the snap-fit block (342) to snap onto the lateral snap-fit groove (321), thereby fixing the slider (34) to the liftable inner slide groove (32).
6. The measuring device arrangement structure according to claim 5, characterized in that: The side wall of the testing chamber (22) is equipped with a probe hanging plate (33).
7. The arrangement structure of the measuring device according to claim 1, characterized in that: The outer wall of the sample barrel (5) is provided with a circular limiting groove (51). A limiting frame (52) is vertically installed at the measurement point directly below the quick-change needle Vicat instrument (3). A limiting rod (53) with a height and size that is compatible with the circular limiting groove (51) is horizontally connected to the limiting frame (52).
8. The arrangement structure of the measuring device according to claim 1, characterized in that: The device base (1) is also equipped with multiple rollers (42) at the bottom. The rollers (42) are used to drive the device to move as a whole after the base leveling bolt (4) is screwed into the device base (1) to a preset depth.
9. The measuring device arrangement structure according to claim 1, characterized in that: The constant temperature circulating water system (6) includes a circulating water heater (61) installed in the curing chamber (21). The circulating water heater (61) is connected to a circulating water heat conduction coil (62) laid on the upper surface of the device base (1). A temperature monitoring sensor (63) is installed in the curing chamber (21). The circulating water heater (61) and the temperature monitoring sensor (63) are both electrically connected to a touch screen display (23) installed on the outer wall of the device housing (2).