Concrete sampling device for highway construction
By designing a combination of support frame, sampling tube, sliding column and drive mechanism, the problem of difficulty in adjusting the depth of concrete sampling device and cleaning the attached concrete is solved, realizing fast and accurate sampling and efficient cleaning.
Patent Information
- Application Number
- CN202520170253.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-25
AI Technical Summary
In existing technologies, concrete sampling devices are difficult to adjust the sampling depth flexibly, and concrete tends to adhere during the sampling process, resulting in inaccurate test results and difficulty in cleaning.
A concrete sampling device was designed, comprising a support frame, a sampling cylinder, a sliding column, a vertical shaft, a drive mechanism, and limiting components. The device achieves sampling at different depths by blocking the feed inlet with the sliding column and driving the vertical shaft to rotate through the drive mechanism, and uses centrifugal force to clean up the attached concrete.
It enables rapid acquisition of concrete samples at different depths, improving sampling accuracy and cleaning efficiency, and reducing the difficulty of using the device and the risk of damage.
Smart Images
Figure CN223940562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to concrete testing technology, specifically to a concrete sampling device for highway construction. Background Technology
[0002] In highway construction, concrete quality testing is a crucial step. Traditional concrete sampling devices often struggle to effectively obtain samples from different depths within the concrete, resulting in test results that may not fully reflect the overall quality of the concrete. Furthermore, concrete tends to adhere to the sampling device during the sampling process, causing significant trouble for subsequent cleaning work. This not only increases the labor intensity of construction workers but may also affect the service life and sampling accuracy of the sampling device.
[0003] Most existing concrete sampling devices use fixed sampling cylinders, which cannot flexibly adjust the sampling depth, and concrete tends to adhere to the sample during the sampling process, making it difficult to clean thoroughly. Therefore, how to design a sampling device that can conveniently and quickly obtain samples from different depths in concrete and is easy to clean has become an urgent technical problem to be solved in the field of highway construction. Utility Model Content
[0004] The purpose of this invention is to provide a concrete sampling device for highway construction, which can quickly obtain samples from different depths in the concrete material and quickly clean the concrete adhering to the device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete sampling device for highway construction, comprising a support frame, a sampling cylinder, a sliding column, a vertical shaft, a drive mechanism, and limiting components;
[0006] The top of the sampling tube is rotatably connected to the support frame, and two feed ports are opened at the bottom of the sampling tube. The sliding column is set inside the sampling tube and can move along the axial direction of the sampling tube to block the two feed ports.
[0007] The bottom end of the slide column is provided with a material feeding groove, the top end of the slide column is fixedly connected to the vertical shaft, and a limiting component is connected to one side of the vertical shaft to prevent the vertical shaft from moving along the vertical shaft axis.
[0008] The drive mechanism is mounted on the support frame. One side of the sampling cylinder and the other side of the vertical shaft are connected to the drive mechanism. The drive mechanism is used to drive the vertical shaft and the sampling cylinder to rotate synchronously around the vertical shaft axis.
[0009] Furthermore, the limiting component includes a limiting rod, the bottom end of which is rotatably connected to the vertical shaft, the outer wall of which is slidably connected to the support frame, and multiple insertion holes are provided on the limiting rod. The multiple insertion holes are arranged at equal intervals along the length direction of the limiting rod, and a pin is slidably connected to the support frame. The pin can be partially inserted into one of the insertion holes.
[0010] Furthermore, a sleeve is fixedly installed on the support frame, the outer wall of the pin is slidably connected to the sleeve, a spring is sleeved on the outside of the pin, one end of the spring is fixedly connected to the pin, and the other end of the spring is fixedly connected to the sleeve.
[0011] Furthermore, a blocking block is provided at the top of the limiting rod, which is used to prevent the limiting rod from moving downward relative to the support frame along the axial direction of the limiting rod.
[0012] Furthermore, the material receiving trough is an annular trough.
[0013] Furthermore, the driving mechanism includes an external gear ring, inside which a sliding sleeve is slidably fitted. The inner wall of the sliding sleeve is slidably connected to the vertical shaft, and the bottom end of the sliding sleeve is rotatably connected to the sampling cylinder. A gear is meshed on one side of the external gear ring, and a rotary drive component for driving the gear to rotate around its own axis is connected on one side of the gear. An internal gear ring is meshed on the other side of the gear, and the outer wall of the internal gear ring is fixedly connected to the sampling cylinder.
[0014] Furthermore, the gear is fixedly sleeved outside the output shaft of the rotary drive component, and the rotary drive component is fixedly installed at the bottom of the support frame.
[0015] Furthermore, a handle is provided at the top of the support frame, and an anti-slip pad is provided on the lower side of the handle.
[0016] Compared with the prior art, the concrete sampling device for highway construction provided by this utility model can conveniently obtain samples from different depths in the concrete material by setting a sliding column and a sealable feed inlet. During the sampling process, the sampling depth can be precisely controlled by adjusting the position of the sliding column, thereby improving the accuracy and representativeness of the sampling. The vertical shaft and the sampling cylinder are driven to rotate synchronously by the drive mechanism, and the concrete samples attached to the sampling cylinder and the sliding column are thrown off by centrifugal force.
[0017] The design of the limiting component fixes the position of the vertical shaft and the sliding column, avoiding inaccurate sampling or device damage caused by shaking during the sampling process. At the same time, the insertion hole and pin on the limiting rod cooperate to make the position of the sliding column easy to adjust and lock, improving the stability and operability of the device. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a schematic diagram of the external three-dimensional structure provided for an embodiment of the present utility model;
[0020] Figure 2 This is a first cross-sectional structural schematic diagram provided for an embodiment of the present utility model;
[0021] Figure 3 Provided for the embodiments of this utility model Figure 2 Enlarged diagram of point A in the diagram;
[0022] Figure 4 This is a second cross-sectional structural schematic diagram provided for an embodiment of the present utility model;
[0023] Figure 5 Provided for the embodiments of this utility model Figure 4 Enlarged diagram of point B in the diagram;
[0024] Figure 6 This is a partial three-dimensional structural diagram provided for an embodiment of the present utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Support frame; 11. Handle; 12. Anti-slip pad; 2. Sampling cylinder; 21. Feed inlet; 3. Sliding column; 31. Feeding trough; 4. Vertical shaft; 5. Drive mechanism; 51. External gear ring; 52. Sliding sleeve; 53. Gear; 54. Rotary drive component; 55. Internal gear ring; 6. Limiting component; 61. Limiting rod; 62. Insertion hole; 63. Pin; 64. Sleeve; 65. Spring; 66. Blocking block. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0028] Please see Figure 1 , Figure 2 and Figure 4 A concrete sampling device for highway construction includes a support frame 1, a sampling cylinder 2, a sliding column 3, a vertical shaft 4, a drive mechanism 5, and a limiting component 6.
[0029] The top of the sampling cylinder 2 is rotatably connected to the support frame 1. Two feed inlets 21 are opened at the bottom of the sampling cylinder 2. The sliding column 3 is set inside the sampling cylinder 2, and the sliding column 3 can move along the axial direction of the sampling cylinder 2 to block the two feed inlets 21.
[0030] The outer wall of the sliding column 3 is in contact with the inner wall of the sampling cylinder 2, and the sliding column 3 can move up and down and rotate relative to the sampling cylinder 2. A material sampling groove 31 is provided at the bottom end of the sliding column 3, and the top end of the sliding column 3 is fixedly connected to the vertical shaft 4. A limiting member 6 is connected to one side of the vertical shaft 4 to prevent the vertical shaft 4 from moving along the axial direction of the vertical shaft 4.
[0031] The drive mechanism 5 is mounted on the support frame 1. One side of the sampling cylinder 2 and one side of the vertical shaft 4 are respectively connected to the drive mechanism 5. The drive mechanism 5 is used to drive the vertical shaft 4 and the sampling cylinder 2 to rotate synchronously around the axis of the vertical shaft 4.
[0032] Existing concrete sampling devices struggle to capture concrete at different depths within the concrete sample, and concrete tends to adhere to the device, making subsequent cleaning difficult. To address this, this application incorporates a sliding column 3. During sampling, the sliding column 3 blocks the inlet 21 on the sampling cylinder 2. The sliding column 3 and sampling cylinder 2 are then inserted into the concrete. Once the inlet 21 reaches the predetermined sampling depth, the sliding column 3 moves upward, and the sampling groove 31 on the sliding column 3 moves to the inlet 21. At this point, concrete enters the sample... The concrete is fed into the sampling trough 31. After the sampling trough 31 is filled with concrete, the sliding column 3 is moved down relative to the sampling cylinder 2. The sliding column 3 then re-seals the inlet 21. The entire sampling device is then moved to the testing point or the test block preparation point, so that the inlet 21 is inside the container. The driving mechanism 5 drives the vertical shaft 4 and the sampling cylinder 2 to rotate synchronously around the axis of the vertical shaft 4. The vertical shaft 4 drives the sliding column 3 to rotate. Under the action of centrifugal force, the concrete sample on the sampling cylinder 2 and the sliding column 3 is thrown off, which can reduce the tediousness of cleaning the concrete attached to the sampling device later.
[0033] Please see Figures 1 to 3 In one embodiment of this utility model, the limiting member 6 includes a limiting rod 61, the bottom end of the limiting rod 61 is rotatably connected to the vertical shaft 4, the outer side wall of the limiting rod 61 is slidably connected to the support frame 1, the limiting rod 61 is provided with a plurality of insertion holes 62, the plurality of insertion holes 62 are arranged at equal intervals along the length direction of the limiting rod 61, and a pin 63 is slidably connected to the support frame 1, the pin 63 can be partially inserted into one of the insertion holes 62, thereby fixing the position of the limiting rod 61 and the vertical shaft 4, thereby fixing the position of the sliding column 3 relative to the sampling cylinder 2;
[0034] In one embodiment of this utility model, in order to maintain the stability of the pin 63, a sleeve 64 is fixedly installed on the support frame 1. The outer wall of the pin 63 is slidably connected to the sleeve 64. A spring 65 is sleeved on the outside of the pin 63. One end of the spring 65 is fixedly connected to the pin 63, and the other end of the spring 65 is fixedly connected to the sleeve 64. Under the action of the spring 65, the pin 63 can be stably inserted into the socket 62.
[0035] Please see Figure 1 In one embodiment of the present invention, a blocking block 66 is provided at the top of the limiting rod 61. The blocking block 66 is used to prevent the limiting rod 61 from moving downward relative to the support frame 1 along the axial direction of the limiting rod 61, so as to prevent the sliding column 3 from sliding out of the sampling cylinder 2.
[0036] Please see Figure 2In one embodiment of this utility model, the material taking groove 31 is an annular groove, which facilitates cleaning of the material taking groove 31.
[0037] Please see Figures 4 to 6 In one embodiment of the present invention, the driving mechanism 5 includes an outer gear ring 51, a sliding sleeve 52 is slidably sleeved inside the outer gear ring 51, the inner wall of the sliding sleeve 52 is slidably connected to the vertical shaft 4, the bottom end of the sliding sleeve 52 is rotatably connected to the sampling cylinder 2, a gear 53 is meshed on one side of the outer gear ring 51, a rotary drive member 54 for driving the gear 53 to rotate around its own axis is connected on one side of the gear 53, an inner gear ring 55 is meshed on the other side of the gear 53, and the outer wall of the inner gear ring 55 is fixedly connected to the sampling cylinder 2.
[0038] Gear 53 is fixedly sleeved on the outside of the output shaft of rotary drive 54. Rotary drive 54 is fixedly installed on the bottom of support frame 1. Rotary drive 54 is a rotary cylinder or motor.
[0039] When the rotary drive 54 is started, it drives the gear 53 to rotate, which in turn drives the outer gear ring 51 and the inner gear ring 55, as well as the sampling cylinder 2 and the vertical shaft 4 connected thereto to rotate synchronously. This allows the concrete sample attached to the sampling cylinder 2 and the sliding column 3 to be thrown off under the action of centrifugal force.
[0040] Please see Figure 1 and Figure 4 In one embodiment of this utility model, a handle 11 is provided at the top of the support frame 1 to facilitate the operation of concrete sampling by the staff through the handle 11. An anti-slip pad 12 is provided on the lower side of the handle 11 to increase friction and prevent the device from slipping when the staff holds the device.
[0041] In one embodiment of this utility model, a corresponding control unit can be set up for cooperative use. This control unit can be any type of controller connected to the electrical components in this application, thereby controlling the start-up and shutdown of each electrical component. This part is prior art. Here, a microcontroller can be provided as the control unit for demonstration. In this embodiment, the microcontroller is a typical embedded microcontroller unit, consisting of an arithmetic logic unit (ALU), a controller, a memory, input / output devices, etc., equivalent to a miniature computer. Compared with the general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its biggest advantage is its small size, which can be placed inside the instrument, but it has small storage capacity, simple input / output interfaces, and low power consumption.
[0042] In one embodiment of this utility model, a mobile power supply can also be installed on the support frame 1 to supply power to the electrical components in this application.
[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A concrete sampling device for highway construction, characterized in that, It includes a support frame (1), a sampling cylinder (2), a sliding column (3), a vertical shaft (4), a drive mechanism (5), and a limiting component (6); The top of the sampling tube (2) is rotatably connected to the support frame (1). Two feed inlets (21) are opened at the bottom of the sampling tube (2). The sliding column (3) is set inside the sampling tube (2), and the sliding column (3) can move along the axial direction of the sampling tube (2) to block the two feed inlets (21). The bottom end of the sliding column (3) is provided with a material picking groove (31), the top end of the sliding column (3) is fixedly connected to the vertical shaft (4), and a limiting member (6) is connected to one side of the vertical shaft (4) to prevent the vertical shaft (4) from moving along the axial direction of the vertical shaft (4); The drive mechanism (5) is mounted on the support frame (1). The sampling cylinder (2) and the vertical shaft (4) are connected to the drive mechanism (5) respectively. The drive mechanism (5) is used to drive the vertical shaft (4) and the sampling cylinder (2) to rotate synchronously around the axis of the vertical shaft (4).
2. The concrete sampling device for highway construction according to claim 1, characterized in that, The limiting component (6) includes a limiting rod (61), the bottom end of which is rotatably connected to the vertical shaft (4), the outer side wall of the limiting rod (61) is slidably connected to the support frame (1), and multiple insertion holes (62) are provided on the limiting rod (61). The multiple insertion holes (62) are arranged at equal intervals along the length direction of the limiting rod (61). A pin (63) is slidably connected on the support frame (1), and the pin (63) can be partially inserted into one of the insertion holes (62).
3. A concrete sampling device for highway construction according to claim 2, characterized in that, A sleeve (64) is fixedly installed on the support frame (1). The outer wall of the pin (63) is slidably connected to the sleeve (64). A spring (65) is sleeved on the outside of the pin (63). One end of the spring (65) is fixedly connected to the pin (63), and the other end of the spring (65) is fixedly connected to the sleeve (64).
4. A concrete sampling device for highway construction according to claim 1, characterized in that, A blocking block (66) is provided at the top of the limiting rod (61). The blocking block (66) is used to prevent the limiting rod (61) from moving downward relative to the support frame (1) along the axial direction of the limiting rod (61).
5. A concrete sampling device for highway construction according to claim 1, characterized in that, The material feeding trough (31) is an annular trough.
6. A concrete sampling device for highway construction according to claim 1, characterized in that, The drive mechanism (5) includes an outer gear ring (51), a sliding sleeve (52) is slidably sleeved inside the outer gear ring (51), the inner wall of the sliding sleeve (52) is slidably connected to the vertical shaft (4), the bottom end of the sliding sleeve (52) is rotatably connected to the sampling cylinder (2), a gear (53) is meshed on one side of the outer gear ring (51), a rotary drive (54) for driving the gear (53) to rotate around its own axis is connected on one side of the gear (53), an inner gear ring (55) is meshed on the other side of the gear (53), and the outer wall of the inner gear ring (55) is fixedly connected to the sampling cylinder (2).
7. A concrete sampling device for highway construction according to claim 6, characterized in that, The gear (53) is fixedly sleeved on the outside of the output shaft of the rotary drive (54), and the rotary drive (54) is fixedly installed on the bottom of the support frame (1).
8. A concrete sampling device for highway construction according to claim 1, characterized in that, The support frame (1) has a handle (11) at the top and an anti-slip pad (12) on the lower side of the handle (11).