Concrete slump testing device
By designing a concrete slump test device containing slide rails and indicator components, the problem of low measurement accuracy in the prior art is solved, and more accurate slump measurement is achieved.
Patent Information
- Application Number
- CN202420339185.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The existing concrete slump testing methods have the problem of low measurement accuracy, mainly because it is difficult to ensure the verticality of the slump cylinder and the scale reading error of the highest point of the concrete measurement is large.
A test device including a base plate, slide rail, slump cylinder, column and indicator assembly is designed to ensure the verticality of the slump cylinder through the slide rail, and accurately read the scale of the highest point of concrete through the rotating sleeve and indicator rod. , reduce errors.
The accuracy of slump measurement is improved, and the impact of slump lateral offset and scale reading error on the measurement results are avoided.
Smart Images
Figure CN222167033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slump measurement, in particular to a concrete slump testing device. Background Art
[0002] Slump is a method and indicator for measuring the workability of concrete. The fluidity of concrete is measured through the slump test, and the cohesion and water retention of concrete are evaluated with the help of intuitive experience.
[0003] The slump test method is as follows: use a truncated cone with an upper diameter of 100mm, a lower diameter of 200mm and a height of 300mm, pour in concrete and fill it in three times. After each filling, use a tamping hammer to hit the barrel wall evenly from the outside to the inside 25 times, and smooth it after tamping. Then lift the cone vertically upward. The concrete will collapse due to its own weight. The slump of the concrete is the height of the barrel minus the height of the highest point of the concrete after collapse.
[0004] The existing slump test method has the following defects: first, the verticality of the slump cone cannot be guaranteed when the slump cone is manually lifted up; second, when the highest point of the concrete after collapse is measured manually with a ruler, the verticality of the ruler is difficult to guarantee, and the reading error of the corresponding scale of the highest point of the concrete on the ruler is also large. Both of these defects will affect the measurement accuracy of the slump, resulting in low measurement accuracy of the existing slump test method. Utility Model Content
[0005] In order to overcome the technical defect of low measurement accuracy in the existing slump test method, the utility model provides a concrete slump test device.
[0006] The utility model provides a concrete slump testing device, comprising:
[0007] Base plate;
[0008] A slide rail, which is perpendicular to the bottom plate and has a lower end fixed to the bottom plate;
[0009] A collapse cone is slidably connected to the slide rail via a connecting plate, and the axis of the collapse cone is perpendicular to the bottom plate;
[0010] A column, which is perpendicular to the bottom plate and has its lower end fixed to the bottom plate, and the column is provided with scale lines arranged along its length direction;
[0011] The indicating assembly comprises a sleeve and an indicating rod, wherein the sleeve is slidably sleeved on the column and can rotate relative to the column, and the indicating rod is parallel to the bottom plate and has one end fixedly connected to the sleeve and the other end suitable for marking the highest point of concrete.
[0012] Optionally, a blocking member is further provided on the slide rail, and the blocking member has a supporting state for blocking the connecting plate from falling when the collapse cylinder is in the upper limit position, and an idle state for preventing the connecting plate from sliding.
[0013] Optionally, the blocking member includes an articulated seat, a buckle and a blocking rod, the articulated shaft and the buckle are both located on the slide rail and are respectively located on both sides of the sliding portion of the slide rail, one end of the blocking rod is hinged on the articulated seat, and the other end is suitable for cooperating with the buckle.
[0014] Optionally, an L-shaped plate is provided at the other end of the indicator rod, the vertical plate of the L-shaped plate is fixedly connected to the indicator rod, and the horizontal plate of the L-shaped plate is parallel to the bottom plate and aligned with the lower end of the sleeve.
[0015] Optionally, the indicator rod is a telescopic rod.
[0016] Optionally, a handle is provided above the connecting plate.
[0017] Optionally, support blocks are provided under the four corners of the base plate.
[0018] Compared with the prior art, the technical solution provided by the utility model has the following advantages:
[0019] The utility model provides a concrete slump test device, which includes a base plate, a slide rail, a slump cone, a column and an indicator assembly. The column is provided with a scale line, and the indicator assembly includes a sleeve and an indicator rod. The slump cone of the device is slidably connected to the slide rail through a connecting plate. When in use, the verticality of the slide rail can be ensured as long as the base plate is placed horizontally, thereby ensuring the verticality of the slump cone during the lifting process and avoiding lateral displacement of the slump cone. The sleeve and the indicator rod are installed on the column of the device. When measuring the height of concrete after collapse, the sleeve is rotated so that the indicator rod is located directly above the highest point of the concrete, and then the scale corresponding to the sleeve is read to accurately obtain the height after collapse. Through these two improvements, the influence of the lateral displacement of the slump cone and the scale reading error on the slump measurement accuracy can be avoided, thereby improving the slump measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 A front view showing a concrete slump testing device in an embodiment of the utility model;
[0023] Figure 2 A left view showing a concrete slump test device in an embodiment of the utility model
[0024] Figure 3 A top view showing a concrete slump testing device in an embodiment of the utility model;
[0025] Figure 4 express Figure 1 A partial enlarged view of point A in the middle.
[0026] In the figure:
[0027] 1. Base plate; 11. Support block; 2. Slide rail; 3. Collapse cylinder; 31. Connecting plate; 32. Handle; 4. Column; 5. Indicator assembly; 51. Sleeve; 52. Indicator rod; 53. L-shaped plate; 6. Stopper; 61. Articulated seat; 62. Buckle; 63. Stop rod. DETAILED DESCRIPTION
[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.
[0030] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0031] Reference Figures 1 to 3 This embodiment provides a concrete slump testing device, including a base plate 1, a slide rail 2, a slump, a column 4 and an indicating component 5.
[0032] The bottom plate 1 is arranged horizontally when in use.
[0033] Specifically, the bottom plate 1 is a rectangular plate. Of course, in other embodiments, the bottom plate 1 can also be circular, triangular, irregular or other shapes.
[0034] Furthermore, support blocks 11 are provided under the four corners of the bottom plate 1. The support blocks 11 can prop up the bottom plate 1. When in use, it is only necessary to ensure the relative levelness of the four support blocks 11, and it is not necessary for the ground corresponding to the entire bottom plate 1 to be level, which improves the adaptability of the device to the environment.
[0035] The slide rail 2 is perpendicular to the bottom plate 1 and the lower end is fixed on the bottom plate 1 .
[0036] It is easy to understand that the slide rail 2 includes a rail body and a sliding part.
[0037] Specifically, the sliding portion of the slide rail 2 is a recessed slide groove. Of course, in other embodiments, the sliding portion of the slide rail 2 can also be a convex slide bar.
[0038] More specifically, the slide groove can be a dovetail groove, a rectangular groove, or other common slide groove shapes.
[0039] Furthermore, a blocking member 6 is provided on the slide rail 2. The blocking member 6 has a supporting state for blocking the connection plate 31 from falling when the collapse cylinder 3 is at the upper limit position, and an idle state for preventing the connection plate 31 from sliding.
[0040] Specifically, the blocking member 6 includes an articulated seat 61, a buckle 62 and a blocking rod 63. The articulated shaft and the buckle 62 are both located on the slide rail 2 and are respectively located on both sides of the sliding portion of the slide rail 2. One end of the blocking rod 63 is hinged on the articulated seat 61, and the other end is suitable for matching with the buckle 62. When the blocking rod 63 is placed in the buckle 62, the blocking member 6 is in a supporting state, and when the buckle 62 is separated from the buckle 62, the blocking member 6 is in an idle state. Of course, in other embodiments, the blocking member 6 may also include a baffle and a fixing bolt. When the blocking rod 63 is fixed to the slide rail 2 by the fixing bolt, the blocking member 6 is in a supporting state, and when the blocking rod 63 is separated from the slide rail 2, the blocking member 6 is in an idle state.
[0041] More specifically, see Figure 4 The articulated seat 61 includes two articulated ears and an articulated shaft, one end of the stop rod 63 is placed between the two articulated ears and the articulated shaft passes through the two articulated ears and the stop rod 63 at the same time; the buckle 62 includes two ear plates and a pin shaft, the other end of the stop rod 63 is placed between the two ear plates and is blocked by the pin shaft passing through the two ear plates to prevent the stop rod 63 from detaching from the two ear plates.
[0042] The collapse cone 3 is slidably connected to the slide rail 2 via a connecting plate 31 , and the axis of the collapse cone 3 is perpendicular to the bottom plate 1 .
[0043] Specifically, the collapse cone 3 can be made of standard parts, and the connecting plate 31 can be fixedly connected to the collapse cone 3 by welding or gluing.
[0044] Further, a handle 32 is provided above the connecting plate 31. It is more convenient to lift the slump cone 3 by the handle 32.
[0045] The column 4 is perpendicular to the bottom plate 1 and the lower end is fixed on the bottom plate 1 . The column 4 is provided with scale lines arranged along the length direction thereof.
[0046] Specifically, the lower end of the column 4 can also be fixed to the base plate 1 by welding or screwing.
[0047] The indicating assembly 5 includes a sleeve 51 and an indicating rod 52. The sleeve 51 is slidably sleeved on the column 4 and can rotate relative to the column 4. The indicating rod 52 is parallel to the bottom plate 1 and one end is fixedly connected to the sleeve 51, and the other end is suitable for calibrating the highest point of concrete. When measuring the height after the concrete collapses, the sleeve 51 is rotated so that the indicating rod 52 is located directly above the highest point of the collapse, and then the corresponding scale of the sleeve 51 is read.
[0048] It should be noted that after reading the corresponding scale of the sleeve 51, the actual height represented by the lower end of the indicator rod 52 needs to be calculated based on the relative height between the corresponding position of the sleeve 51 and the indicator rod 52. Of course, a window aligned with the lower end of the indicator rod 52 can be opened in the sleeve 51, or the scale line can be directly converted into the actual height represented by the lower end of the indicator rod 52, and the scale can be directly read.
[0049] Furthermore, an L-shaped plate 53 is provided at the other end of the indicator rod 52, the vertical plate of the L-shaped plate 53 is fixedly connected to the indicator rod 52, and the horizontal plate of the L-shaped plate 53 is parallel to the bottom plate 1 and aligned with the lower end of the sleeve 51. The horizontal plate of the L-shaped plate 53 contacts the highest point after the concrete collapses, and the corresponding scale at the lower end of the sleeve 51 is read as the collapse height. This reading method has a smaller error.
[0050] Specifically, the indicator rod 52 is a telescopic rod. Since the highest point of concrete collapse is uncertain, the horizontal plate of the L-shaped plate 53 can be placed just above the highest point of collapse by rotating the sleeve 51 and coordinating the telescopic movement of the indicator rod 52, which is more conducive to reading.
[0051] The working process of the concrete slump testing device of this embodiment is as follows:
[0052] First, the device is placed on the ground through the support block 11 so that the base plate 1 is in a horizontal state; then, concrete is poured into the collapse cone 3 according to standard operations; then, the operator holds the handle 32 and lifts the collapse cone 3 vertically. When the collapse cone 3 reaches the highest position, the blocking member 6 is operated to switch it to the supporting state, and the blocking member 6 keeps the collapse cone 3 in the highest position; then, the operator rotates the sleeve 51 and extends the blocking rod 63 at the same time, so that the horizontal plate of the L-shaped plate 53 contacts the highest point after the concrete collapses, and reads the scale corresponding to the lower end of the sleeve 51, which is the collapse height; finally, the slump value is obtained by subtracting the collapse height from the original height value of the collapse cone 3.
[0053] It should be noted that, in the concrete slump test device of this embodiment, the slide rail 2 and the column 4 need to be arranged at the edge of the base plate 1 to reserve sufficient space for the collapse of concrete and avoid a decrease in measurement accuracy due to the concrete touching the slide rail 2 or the column 4 when collapsing.
[0054] The above is only a specific implementation of the utility model, so that those skilled in the art can understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.
Claims
1. A concrete slump testing device, characterized in that: include: Bottom plate (1); A slide rail (2), which is perpendicular to the bottom plate (1) and has a lower end fixed to the bottom plate (1); A slump cone (3) which is slidably connected to the slide rail (2) via a connecting plate (31), and the axis of the slump cone (3) is perpendicular to the bottom plate (1); A column (4) which is perpendicular to the bottom plate (1) and has its lower end fixed to the bottom plate (1), and the column (4) is provided with scale lines arranged along its length direction; An indicating assembly (5) comprises a sleeve (51) and an indicating rod (52), wherein the sleeve (51) is slidably sleeved on the column (4) and can rotate relative to the column (4), and the indicating rod (52) is parallel to the base plate (1) and has one end fixedly connected to the sleeve (51) and the other end suitable for marking the highest point of concrete.
2. The concrete slump testing device according to claim 1, characterized in that: The slide rail (2) is also provided with a blocking member (6), and the blocking member (6) has a supporting state for blocking the connection plate (31) from falling when the collapse cylinder (3) is at the upper limit position, and an idle state for preventing the connection plate (31) from sliding.
3. The concrete slump testing device according to claim 2, characterized in that: The blocking member (6) comprises an articulated seat (61), a buckle (62) and a blocking rod (63); the articulated shaft and the buckle (62) are both located on the slide rail (2) and are respectively located on both sides of the sliding portion of the slide rail (2); one end of the blocking rod (63) is hinged on the articulated seat (61) and the other end is suitable for matching with the buckle (62).
4. The concrete slump testing device according to claim 1, characterized in that: An L-shaped plate (53) is provided at the other end of the indicator rod (52), the vertical plate of the L-shaped plate (53) being fixedly connected to the indicator rod (52), and the horizontal plate of the L-shaped plate (53) being parallel to the bottom plate (1) and aligned with the lower end of the sleeve (51).
5. The concrete slump testing device according to claim 4, characterized in that: The indicator rod (52) is a telescopic rod.
6. The concrete slump testing device according to any one of claims 1 to 5, characterized in that: A handle (32) is provided above the connecting plate (31).
7. The concrete slump testing device according to any one of claims 1 to 5, characterized in that: Support blocks (11) are provided below the four corners of the bottom plate (1).