Scattered concrete sample collection device
The concrete scatter sampling device with installation plate and telescopic arm structure solves the problems of insufficient flexibility and stratification of sampling equipment, and achieves more accurate concrete testing.
Patent Information
- Application Number
- CN202423261423.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing concrete multi-point sampling equipment has poor flexibility, the spacing between sampling points is inconvenient to adjust, and the samples are prone to stratification in the test mold box after multi-point sampling, which affects the accuracy of testing.
It adopts a mounting plate and telescopic arm structure. The telescopic arm drives the sampling component to different sampling points. Combined with the aggregation tube, it can achieve the mixing of multiple samples, reduce stratification, and improve detection accuracy.
It enables flexible adjustment of sampling point locations and uniform mixing of multiple samples, improving the accuracy and efficiency of concrete testing.
Smart Images
Figure CN223742036U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete detection technical field especially is related to a kind of concrete scattered point formula sample collection device. BACKGROUND
[0002] Concrete sampling is mainly to sample freshly mixed concrete, which includes sampling at the stage of discharging from concrete mixing station, transporting concrete to construction site, etc., to detect the working performance and basic physical properties of concrete. Since concrete is prone to unevenness during production and construction, such as, during the mixing process, there may be local differences in the mixing effect of the mixer, and the distribution of raw materials such as cement, aggregate and admixture in the mixing drum may not be completely uniform. If sampling is only done at one point, the sample may not represent the true situation of the entire batch of concrete. Therefore, multiple sampling points are usually used. However, the placement of concrete samples after multiple sampling points varies depending on the situation. If the performance difference of concrete at different sampling points needs to be compared, the concrete samples from multiple sampling points need to be placed in different test molds. If the overall average performance of the entire batch of concrete needs to be evaluated, the concrete samples from multiple sampling points can be placed together in one test mold to reduce sampling and testing errors and obtain a result that better represents the average performance of the entire batch of concrete.
[0003] Currently, when multiple sampling points are used for concrete sampling, flexibility is poor, and the distance between sampling points cannot be easily adjusted. Sampling can only be done at a few sampling points at specific locations. When evaluating the overall performance of the entire batch of concrete, the samples in multiple sampling boxes need to be placed one by one into the same test mold after multiple sampling points are completed. At this time, due to the differences in concrete in different sampling boxes in terms of slump and aggregate distribution, there may be stratification in the test mold, affecting the accuracy of concrete detection.
[0004] Based on the above situation, we propose a kind of concrete scattered point formula sample collection device to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model provides a kind of concrete scattered point formula sample collection device to solve the problem of poor flexibility of concrete multiple sampling equipment in prior art, and the stratification problem of placing multiple sampling samples in the same test mold.
[0006] The technical problem solved by the utility model is realized by using the following technical solutions:
[0007] The utility model provides a kind of concrete scattered spot sample collecting device, including mounting disc, sampling piece and the gathering cylinder with upper and lower ends being open, a plurality of groups of telescopic arms that can extend linearly are rotatably connected on the mounting disc, and the telescopic arms are equidistantly arranged around the central axis of mounting disc, the sampling piece is connected to the end of telescopic arm away from mounting disc by first telescopic piece, and the sampling piece corresponds to telescopic arm one by one, the gathering cylinder is connected to the bottom of mounting disc by second telescopic piece, and the inner diameter of gathering cylinder gradually decreases from top to bottom.
[0008] Preferably, the sampling piece includes a sampling cylinder and a piston piece that can be sealingly and slidingly connected to the inside of the sampling cylinder, and the top end of the sampling cylinder is provided with a third telescopic piece, and the movable end of the third telescopic piece is connected to the piston piece.
[0009] Preferably, the piston piece includes an annular contact portion and tapered tips located at the upper and lower ends of the annular contact portion, and the outer diameter of the annular contact portion is equal to the inner diameter of the sampling cylinder, and the tapered tips of the two tapered tips are oppositely directed.
[0010] Preferably, the telescopic arm includes a first connecting arm and a second connecting arm slidingly connected to the first connecting arm, and the first connecting arm is threadedly connected with a first locking piece, and when the first locking piece is in contact with the second connecting arm, the position of the second connecting arm is locked.
[0011] Preferably, the mounting disc is threadedly connected with a second locking piece, and when the second locking piece is in contact with the telescopic arm, the position of the telescopic arm is locked.
[0012] Preferably, the mounting disc is connected with a lifting rod.
[0013] Preferably, the utility model further includes a controller, and the first telescopic piece, the second telescopic piece, and the third telescopic piece are electrically connected to the controller.
[0014] The utility model has the beneficial effects that: by extending the telescopic arm and rotating the position of the telescopic arm, the sampling piece can be moved to different sampling positions according to actual sampling requirements, the flexibility is stronger, the performance of the whole batch of concrete can be better reflected, and after sampling is completed, the multiple sampling pieces are moved to the upper end of the gathering cylinder, the sampling cylinder is opened by the controller, the concrete samples in the multiple sampling cylinders can be simultaneously discharged into the gathering cylinder for mixing, the stratification phenomenon is reduced, and the detection result is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical means, creative features, purposes and effects realized by the utility model, the following will briefly introduce the drawings needed in the description of the embodiments or prior art. Obviously, the drawings described below are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying creative labor.
[0016] Figure 1 The isometric structure schematic diagram provided by the utility model Figure 1 ;
[0017] Figure 2 The isometric structure schematic diagram provided by the utility model Figure 2 ;
[0018] Figure 3 The schematic diagram when the plurality of sampling members in the utility model collectively discharge into the gathering cylinder
[0019] Figure 4 The cross-sectional structure schematic diagram provided by the utility model
[0020] Figure 5 The three-dimensional structure schematic diagram of the piston member in the utility model.
[0021] In the figure, 1, mounting disc; 2, telescopic arm; 21, first connecting arm; 22, second connecting arm; 23, first locking member; 24, second locking member; 3, sampling member; 31, sampling cylinder; 32, piston member; 33, third telescopic member; 321, annular contact part; 322, tapered tip part; 4, first telescopic member; 5, gathering cylinder; 6, second telescopic member; 7, lifting rod; 8, controller. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following will further elaborate the utility model by combining with specific drawings.
[0023] Referring to Figures 1-5As shown, a concrete scattered point sample collecting device, comprising a mounting disc 1 and a sampling piece 3, a plurality of groups of linearly extendable telescopic arms 2 are rotationally connected on the mounting disc 1, and the plurality of groups of telescopic arms 2 are equidistantly arranged around the center axis of the mounting disc 1, the sampling piece 3 is connected to one end of the telescopic arm 2 away from the mounting disc 1 through a first telescopic piece 4, and the sampling piece 3 corresponds to the telescopic arm 2 one by one, by adjusting the length of the telescopic arm 2 and rotating the position of the telescopic arm 2, the sampling piece 3 can be driven by the telescopic arm 2 to move to different sampling points, and then the sampling piece 3 is driven downward by the first telescopic piece 4 to insert into the concrete for sampling, the spacing between the sampling points is adjusted, and the flexibility is stronger, for example, if a local blade of a mixer is damaged, after discharge, it may cause the concrete in the vicinity of the area to be stirred unevenly, if sampling is carried out according to fixed spacing, and the sampling points do not cover this affected area, the local quality problem cannot be found, and by adjusting the position of the telescopic arm 2, the sampling point can be located at this position, that is, more comprehensive sampling can be carried out, and these key areas are avoided to be missed;
[0024] At the same time, referring to Figure 3 As shown, in order to collectively discharge the plurality of groups of concrete samples after multi-point sampling into the test mold box, and avoid stratification and other phenomena when the plurality of groups of concrete samples are discharged one by one, an open-topped gathering cylinder 5 is further included, the gathering cylinder 5 is connected to the bottom of the mounting disc 1 through a second telescopic piece 6, and the inner diameter of the gathering cylinder 5 gradually decreases from top to bottom, in use, the output end of the gathering cylinder 5 can be first aligned with a collection container such as a test mold box, the gathering cylinder 5 is driven downward by the second telescopic piece 6, then the position of the telescopic arm 2 is contracted, the telescopic arm 2 drives the sampling piece 3 to move to the upper end of the gathering cylinder 5, and at the same time, the plurality of sampling pieces 3 are opened, so that the point-sampled concrete samples are simultaneously discharged into the gathering cylinder 5, the concrete samples are impacted and mixed with each other in the gathering cylinder 5, various components can be more evenly distributed, stratification is reduced, and finally discharged into the test mold box, improving the detection accuracy of the whole concrete, and without discharging the concrete samples one by one, the efficiency is higher.
[0025] Referring to Figure 3As shown, further, the sampling member 3 comprises a sampling cylinder 31 and a piston member 32 sealably and slidably connected inside the sampling cylinder 31, and the top end of the sampling cylinder 31 is provided with a third telescopic member 33, the movable end of the third telescopic member 33 is connected with the piston member 32, when sampling the concrete, the piston member 32 can be first moved out of the sampling cylinder 31 through the third telescopic member 33, then the sampling cylinder 31 is inserted into the concrete under the action of the first telescopic member 4, then the piston member 32 is moved into the sampling cylinder 31 through the third telescopic member 33, the sampling cylinder 31 is sealed, at this time the concrete inside the sampling cylinder 31 cannot fall out of the sampling cylinder 31, the sampling work is completed, when the concrete sample is discharged, the piston member 32 is moved out of the sampling cylinder 31 through the third telescopic member 33, at this time the concrete sample falls out of the sampling cylinder 31;
[0026] And further comprising a controller 8, the first telescopic member 4, the second telescopic member 6 and the third telescopic member 33 are electrically connected with the controller 8, and the first telescopic member 4, the second telescopic member 6 and the third telescopic member 33 can adopt electric telescopic rod or electric push rod and the like, the lifting of the collecting cylinder 5, the sampling cylinder 31 and the piston member 32 can be controlled through the controller 8, if the concrete samples in different sampling cylinders 31 are to be stored separately, in order to facilitate the subsequent testing of their working performance and strength and the like, the corresponding third telescopic member 33 can be controlled through the controller 8 to open the corresponding piston member 32, for example, when the concrete samples are to be discharged into the test mold box at the same time, after the plurality of sampling cylinders 31 are moved above the collecting cylinder 5, the third telescopic member 33 is controlled to move through the controller 8 to drive the piston member 32 to move out of the sampling cylinder 31.
[0027] Referring to Figure 5 As shown, further, the piston member 32 comprises an annular contact portion 321 and two tapered tip portions 322 located at the upper and lower ends of the annular contact portion 321, and the outer diameter of the annular contact portion is equal to the inner diameter of the sampling cylinder 31, the tapered tips of the two tapered tip portions 322 are opposite to each other, when the piston member 32 enters the inside of the sampling cylinder 31, the annular contact portion abuts against the inner wall of the sampling cylinder 31 to seal the sampling cylinder 31, when the piston member 32 moves downward, the tapered tip portion 322 with the upward tapered tip can facilitate its insertion into the concrete, when the piston member 32 moves out of the sampling cylinder 31, the concrete sample in the sampling cylinder 31 falls out of the sampling cylinder 31, and the tapered tip portion 322 with the upward tapered tip can avoid the accumulation of the concrete sample on the piston member 32.
[0028] Referring to Figure 2As shown, further, the telescopic arm 2 comprises a first connecting arm 21 and a second connecting arm 22 slidably connected with the first connecting arm 21, the first connecting arm 21 is rotatably connected with the mounting disc 1, the first connecting arm 21 and the second connecting arm 22 are both made of metal material with high hardness such as steel, so as to avoid the bending of the telescopic arm 2 caused by the gravity of one end of the telescopic arm 2 when sampling, the first connecting arm 21 is threadedly connected with a first locking piece 23, when the first locking piece 23 is rotated to tightly abut against the second connecting arm 22 at the bottom end, the position of the second connecting arm 22 is locked, so as to avoid the sampling piece 3 from shaking randomly driven by the second connecting arm 22.
[0029] With reference to Figure 2 As shown, further, the mounting disc 1 is threadedly connected with a second locking piece 24, when the second locking piece 24 abuts against the upper end of the telescopic arm 2, i.e. the upper end surface of the first connecting arm 21 at the bottom end, the position of the telescopic arm 2 is locked, so as to avoid the telescopic arm 2 from shaking randomly on the mounting disc 1.
[0030] With reference to Figure 3 As shown, further, the mounting disc 1 is connected with a lifting rod 7, when in use, two persons can hold the two sides of the lifting rod 7 respectively to move the mounting disc 1, so as to place the mounting disc 1 on the upper end of the concrete to be sampled for sampling.
[0031] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and the description in the specification are only to illustrate the principle of the present application, without departing from the spirit and scope of the present application, the present application can also have various changes and improvements, these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A concrete spot pattern material collecting device characterized by comprising: Including mounting disc (1), a plurality of groups of linearly extendable telescopic arms (2) are rotatably connected on the mounting disc (1), and the plurality of groups of telescopic arms (2) are equidistantly arranged around the central axis of the mounting disc (1); A sampling element (3) is connected to one end of the telescopic arm (2) away from the mounting disc (1) through a first telescopic element (4), and the sampling element (3) corresponds to the telescopic arm (2) one by one; An open-top-and-bottom collecting cylinder (5) is connected to the bottom of the mounting disc (1) through a second telescopic element (6), and the inner diameter of the collecting cylinder (5) gradually decreases from top to bottom.
2. The concrete spot pattern material collecting device according to claim 1, characterized in that, The sampling element (3) comprises a sampling cylinder (31) and a piston element (32) which can be sealingly and slidingly connected in the interior of the sampling cylinder (31), and the top end of the sampling cylinder (31) is provided with a third telescopic element (33), and the movable end of the third telescopic element (33) is connected with the piston element (32).
3. The concrete spot pattern material collecting device according to claim 2, wherein The piston element (32) comprises an annular contact portion (321) and two tapered tip portions (322) located at the top and bottom of the annular contact portion (321), and the outer diameter of the annular contact portion (321) is equal to the inner diameter of the sampling cylinder (31), and the tapered tips of the two tapered tip portions (322) are opposite to each other.
4. The concrete spot pattern material collecting device according to claim 1, characterized in that, The telescopic arm (2) comprises a first connecting arm (21) and a second connecting arm (22) which is slidingly connected with the first connecting arm (21), and the first connecting arm (21) is threadedly connected with a first locking element (23), and when the first locking element (23) is in contact with the second connecting arm (22), the position of the second connecting arm (22) is locked.
5. The concrete spot pattern material collecting device according to claim 1, characterized in that, The mounting disc (1) is threadedly connected with a second locking element (24), and when the second locking element (24) is in contact with the telescopic arm (2), the position of the telescopic arm (2) is locked.
6. The concrete spot pattern material collecting device according to claim 1, characterized in that, The mounting disc (1) is connected with a lifting rod (7).
7. The concrete spot pattern material collecting device according to claim 2, characterized in that, Further comprising a controller (8), and the first telescopic element (4), the second telescopic element (6) and the third telescopic element (33) are electrically connected with the controller (8).