Device for detecting density of water-stable test piece based on sand filling method

Abstract

The utility model discloses a device for detecting the density of a water-stable test piece based on a sand filling method, which relates to the technical field of detection devices.The device comprises a cylindrical measuring cylinder and four groups of fixing plates arranged on the surface of the top of the cylindrical measuring cylinder, one side of each fixing plate is fixedly connected with two groups of supporting frames, and the other side of each fixing plate is fixedly connected with one supporting frame. The device further comprises a rotating frame arranged on the supporting frame, the inner side of the rotating frame is rotationally connected with a tension assembly, the tension assembly comprises a rotating sleeve, a threaded rod and a pull ring, and a measuring cylinder cap is connected to the top of the cylindrical measuring cylinder in an inserted mode. The two groups of supporting rods are arranged on one side of the cylindrical measuring cylinder. Through the arrangement of the tension component, the supporting frame and the rotating frame, the effect of stably closing the measuring cylinder cap is achieved, the situation that the measuring cylinder cap is pushed to float upwards by excessive measured sand in the tamping and measuring sand process of a tamping rod, and consequently measurement is inaccurate is prevented, and the accuracy of the device for detecting the density of the water-stable test piece based on the sand filling method is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically a device for testing the density of water-stable specimens based on the sand-filling method. Background Technology

[0002] The strength and density of cement-stabilized crushed stone base courses play a decisive role in the road performance and durability of roads of all grades. Therefore, accurate detection and control of the density of cement-stabilized base / subbase courses are important measures to ensure road durability. Currently, the main methods for controlling the density of cement-stabilized base courses are the compaction degree of random inspections during construction and the subjective judgment of density by observing the side surface condition of cement-stabilized specimens after curing. However, there are no objective testing methods or equipment for the density of cured cement-stabilized specimens. A density testing device for cement-stabilized specimens based on the sand cone method is an instrument used to determine the density of cement-stabilized specimens (such as cement-stabilized crushed stone, cement-stabilized soil, etc.) and thus objectively determine their density. The sand cone method is a commonly used geotechnical testing method that involves filling the voids of a specimen with fine sand to measure the volume of the specimen and thus calculate its density.

[0003] However, there is currently no testing device based on the sand cone method that can be used to measure the density of water-stable specimens. Utility Model Content

[0004] This invention provides a device for detecting the density of water-stable specimens based on the sand-filling method. It has the advantages of easy and stable closing of the measuring cylinder cap, high measurement accuracy, and stable measurement, thus solving the problem of the lack of a device for measuring the density of water-stable specimens based on the sand-filling method. The device is finely designed and can accurately measure the density of water-stable specimens.

[0005] To facilitate the stable closure of the measuring cylinder cap, this utility model provides the following technical solution: a device for detecting the density of a water-stabilized specimen based on the sand-filling method, comprising a cylindrical measuring cylinder and four sets of fixing plates disposed on the top surface of the cylindrical measuring cylinder. Two sets of support frames are fixedly connected to one side of each fixing plate. The device also includes: a rotating frame disposed on the support frame, with a tension assembly rotatably connected to the inner side of the rotating frame. The tension assembly includes a rotating sleeve, a threaded rod, and a pull ring. A measuring cylinder cap is inserted into the top of the cylindrical measuring cylinder. Two sets of support rods are disposed on one side of the cylindrical measuring cylinder, with a fixing sleeve fixedly connected to one end of each support rod. A measuring assembly is slidably connected inside the fixing sleeve, the measuring assembly including a telescopic rod, a rotating rod, and a crossbar. A fixing clamp is disposed on the surface of the fixing sleeve, with a tamping rod sleeved inside the fixing clamp.

[0006] As a preferred embodiment of this utility model, the tension assembly includes a rotating sleeve rotatably connected to the inner side of the rotating frame, a threaded rod threadedly connected to the center of the rotating sleeve, and a pull ring fixedly connected to the top of the threaded rod.

[0007] As a preferred embodiment of this utility model, the measuring component includes a telescopic rod slidably connected inside a fixed sleeve, a rotating rod fixedly connected to the top of the telescopic rod, and a crossbar rotatably connected to the surface of the rotating rod.

[0008] As a preferred embodiment of this utility model, the bottom of the fixed sleeve is fixedly connected to a base, and the surfaces of the cylindrical measuring cylinder and the measuring cylinder cap are both fixedly connected to two sets of handles.

[0009] As a preferred embodiment of this utility model, the surface of the measuring cylinder cap is fixedly connected with a buckle adapted to the pull ring, and the inside of the crossbar is slidably connected with an extension rod.

[0010] As a preferred embodiment of this utility model, the surface of the telescopic rod is provided with scale lines, and a locking block is fixedly connected to the outer surface of the top of the telescopic rod.

[0011] As a preferred embodiment of this utility model, a threaded hole is provided on one side of the fixed sleeve, and a limit bolt passes through the inside of the threaded hole.

[0012] As a preferred embodiment of this utility model, the cylindrical measuring cylinder, the measuring cylinder cap, and the tamping rod are all made of stainless steel, and a handle is rotatably connected to the surface of the cylindrical measuring cylinder.

[0013] Compared with the prior art, this utility model provides a device for detecting the density of water-stable specimens based on the sand-filling method, which has the following beneficial effects:

[0014] 1. This device for detecting the density of water-stable specimens based on the sand-filling method, through the arrangement of a tension component, a support frame, and a rotating frame, allows the pull ring to be placed inside the buckle when the measuring cylinder cap is inserted into the top of the cylindrical measuring cylinder. This pulls the rotating frame, causing it to rotate on the support frame. Consequently, the rotating sleeve rotates inside the rotating frame, driving the threaded rod to pull the pull ring, which tightens and engages inside the buckle. This achieves the effect of stabilizing and closing the measuring cylinder cap, preventing excessive sand from pushing the measuring cylinder cap upwards during the tamping process, which could lead to inaccurate measurements. This improves the accuracy of the device for detecting the density of water-stable specimens based on the sand-filling method.

[0015] 2. This device for detecting the density of water-stabilized specimens based on the sand-filling method, through the setting of the measuring components, allows the tamping rod to be raised to a suitable height for free fall compaction during use. Then, the telescopic rod is pulled according to the required height, and the height is precisely determined using scale lines. The horizontal bar is then pulled, causing it to engage with a locking block, which in turn pulls the extension rod. This facilitates raising the tamping rod to the corresponding height for compaction, preventing uneven compaction density caused by inconsistent fall heights, which could affect the experimental results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the tension component, support frame, and rotating frame of this utility model;

[0019] Figure 4 This is a schematic diagram of the measuring component structure of this utility model.

[0020] In the diagram: 1. Cylindrical measuring cylinder; 2. Fixed plate; 3. Support frame; 4. Rotating frame; 5. Tension assembly; 501. Rotating sleeve; 502. Threaded rod; 503. Pull ring; 6. Measuring cylinder cap; 7. Support rod; 8. Fixed sleeve; 9. Measuring assembly; 901. Telescopic rod; 902. Rotating rod; 903. Crossbar; 10. Fixed clamp; 11. Tamping rod; 12. Base; 13. Handle; 14. Buckle; 15. Extension rod; 16. Locking block; 17. Limiting bolt; 18. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model discloses a device for detecting the density of water-stable specimens based on the sand-filling method. It includes a cylindrical measuring cylinder 1 and four sets of fixing plates 2 disposed on the top surface of the cylindrical measuring cylinder 1. Two sets of support frames 3 are fixedly connected to one side of each fixing plate 2. The device also includes a rotating frame 4 disposed on the support frame 3, with a tension assembly 5 rotatably connected to the inner side of the rotating frame 4. The tension assembly 5 includes a rotating sleeve 501, a threaded rod 502, and a pull ring 503. A measuring cylinder cap 6 is inserted into the top of the cylindrical measuring cylinder 1. Two sets of support rods 7 are disposed on one side of the cylindrical measuring cylinder 1, with a fixing sleeve 8 fixedly connected to one end of each support rod 7. A measuring assembly 9 is slidably connected inside the fixing sleeve 8, and the measuring assembly 9 includes a telescopic rod 901, a rotating rod 902, and a crossbar 903. A fixing clamp 10 is disposed on the surface of the fixing sleeve 8, with a tamping rod 11 sleeved inside the fixing clamp 10.

[0023] Specifically, the tension assembly 5 includes a rotating sleeve 501 rotatably connected to the inner side of the rotating frame 4, a threaded rod 502 threadedly connected to the center of the rotating sleeve 501, and a pull ring 503 fixedly connected to the top of the threaded rod 502.

[0024] In this embodiment, when the measuring cylinder cap 6 is inserted into the top of the cylindrical measuring cylinder 1, the pull ring 503 is placed inside the buckle 14, and then the rotating frame 4 is pulled, so that the rotating frame 4 rotates on the support frame 3, and then the rotating sleeve 501 rotates inside the rotating frame 4, driving the threaded rod 502 to pull the pull ring 503, so that the pull ring 503 is tightened and locked inside the buckle 14.

[0025] Specifically, the measuring component 9 includes a telescopic rod 901 that is slidably connected inside the fixed sleeve 8, a rotating rod 902 that is fixedly connected to the top of the telescopic rod 901, and a crossbar 903 that is rotatably connected to the surface of the rotating rod 902.

[0026] In this embodiment, during use, the tamping rod 11 needs to be raised to a suitable height and allowed to fall freely for tamping. Then, the telescopic rod 901 is pulled according to the required height, and the height is precisely determined using the scale lines. Then, the horizontal bar 903 is pulled, causing the horizontal bar 903 to engage inside the locking block 16, which in turn pulls the extension rod 15.

[0027] Specifically, a base 12 is fixedly connected to the bottom of the fixed sleeve 8, and two sets of handles 13 are fixedly connected to the surfaces of the cylindrical measuring cylinder 1 and the measuring cylinder cap 6.

[0028] In this embodiment, the base 12 facilitates the support and fixing of the sleeve 8, maintaining stability during testing, and the handle 13 facilitates the pulling of the cylindrical measuring cylinder 1 and the measuring cylinder cap 6, making it convenient for handling and separation.

[0029] Specifically, the surface of the measuring cylinder cap 6 is fixedly connected with a buckle 14 that is compatible with the pull ring 503, and the inside of the crossbar 903 is slidably connected with an extension rod 15.

[0030] In this embodiment, the buckle 14 facilitates the insertion of the pull ring 503 to fix the measuring cylinder cap 6, and the extension rod 15 facilitates the extension of the length of the crossbar 903, making it convenient for both measurement and storage.

[0031] Specifically, the surface of the telescopic rod 901 is provided with scale lines, and a locking block 16 is fixedly connected to the outer surface of the top of the telescopic rod 901.

[0032] In this implementation plan, the scale lines facilitate observation of the specific lifting height, and the locking block 16 facilitates support of the crossbar 903.

[0033] Specifically, a threaded hole is provided on one side of the fixed sleeve 8, and a limit bolt 17 passes through the inside of the threaded hole.

[0034] In this embodiment, the threaded hole facilitates the rotation of the limiting bolt 17 inside, and the rotation of the limiting bolt 17 inside the threaded hole facilitates the positioning of the telescopic rod 901.

[0035] Specifically, the cylindrical measuring cylinder 1, the measuring cylinder cap 6, and the tamping rod 11 are all made of stainless steel, and the cylindrical measuring cylinder 1 has a rotatable handle 18 connected to its surface.

[0036] In this implementation plan, the rigidity of the stainless steel material increases the durability of the testing device, and the handle 18 facilitates personnel movement of the testing device.

[0037] The working principle and usage process of this utility model are as follows: When the measuring cylinder cap 6 is inserted into the top of the cylindrical measuring cylinder 1, the pull ring 503 is placed inside the buckle 14, and then the rotating frame 4 is pulled, so that the rotating frame 4 rotates on the support frame 3, and then the rotating sleeve 501 rotates inside the rotating frame 4, driving the threaded rod 502 to pull the pull ring 503, so that the pull ring 503 is tightened and locked inside the buckle 14; In use, since the tamping rod 11 needs to be raised to a suitable height and allowed to fall freely for tamping, the telescopic rod 901 is pulled according to the required height, and the height is precisely determined by the scale line, and then the horizontal bar 903 is pulled, so that the horizontal bar 903 is locked inside the locking block 16, and then the extension rod 15 is pulled.

[0038] In summary, this device for detecting the density of water-stable specimens based on the sand-filling method, through the arrangement of the tension component 5, support frame 3, and rotating frame 4, achieves the effect of stabilizing and closing the measuring cylinder cap 6, preventing excessive sand from pushing the measuring cylinder cap 6 upwards during the tamping process by the tamping rod 11, which would lead to inaccurate measurements and improve the accuracy of the device for detecting the density of water-stable specimens based on the sand-filling method. Furthermore, the arrangement of the measuring component 9 facilitates the lifting of the tamping rod 11 to the corresponding height for tamping, preventing uneven tamping density caused by inconsistent falling heights, which would affect the experimental results.

[0039] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the density of water-stable specimens based on the sand-filling method, comprising a cylindrical measuring cylinder (1) and four sets of fixing plates (2) disposed on the top surface of the cylindrical measuring cylinder (1), wherein two sets of support frames (3) are fixedly connected to one side of the fixing plates (2), characterized in that, Also includes: A rotating frame (4) is set on the support frame (3). A tension assembly (5) is rotatably connected to the inner side of the rotating frame (4). The tension assembly (5) includes a rotating sleeve (501), a threaded rod (502) and a pull ring (503). A measuring cylinder cap (6) is inserted into the top of the cylindrical measuring cylinder (1). Two sets of support rods (7) are set on one side of the cylindrical measuring cylinder (1). One end of the support rod (7) is fixedly connected to a fixed sleeve (8). The measuring component (9) is slidably connected inside the fixed sleeve (8). The measuring component (9) includes a telescopic rod (901), a rotating rod (902), and a crossbar (903). A fixing clip (10) is provided on the surface of the fixing sleeve (8), and a tamping rod (11) is sleeved on the inner side of the fixing clip (10).

2. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: The tension assembly (5) includes a rotating sleeve (501) rotatably connected to the inside of the rotating frame (4), a threaded rod (502) is threadedly connected to the center of the rotating sleeve (501), and a pull ring (503) is fixedly connected to the top of the threaded rod (502).

3. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: The measuring component (9) includes a telescopic rod (901) slidably connected inside the fixed sleeve (8), a rotating rod (902) fixedly connected to the top of the telescopic rod (901), and a crossbar (903) rotatably connected to the surface of the rotating rod (902).

4. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: The bottom of the fixed sleeve (8) is fixedly connected to a base (12), and the surfaces of the cylindrical measuring cylinder (1) and the measuring cylinder cap (6) are both fixedly connected to two sets of handles (13).

5. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: The surface of the measuring cylinder cap (6) is fixedly connected with a buckle (14) that is compatible with the pull ring (503), and the inside of the crossbar (903) is slidably connected with an extension rod (15).

6. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: The surface of the telescopic rod (901) is provided with scale lines, and a locking block (16) is fixedly connected to the outer surface of the top of the telescopic rod (901).

7. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: A threaded hole is provided on one side of the fixed sleeve (8), and a limit bolt (17) passes through the inside of the threaded hole.

8. The device for detecting the density of water-stabilized specimens based on the sand-filling method according to claim 1, characterized in that: The cylindrical measuring cylinder (1), measuring cylinder cap (6) and tamping rod (11) are all made of stainless steel. The cylindrical measuring cylinder (1) is rotatably connected to a handle (18).

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