Roadbed filler compaction degree detection device

Abstract

The utility model relates to the technical field of filler compactness detection, and particularly discloses a roadbed filler compactness detection device which comprises a bearing plate, a connecting rod connected above the bearing plate, a connecting cylinder arranged at the bottom of the connecting rod, an elastic cylinder arranged at the top of the connecting cylinder, a drop hammer connected to the middle of the connecting rod, and a limiting rod connected to the top of the connecting rod. And an embedding groove is formed in the connecting cylinder, a deflection rod is connected in the embedding groove, one side of the deflection rod is connected with an abutting assembly, and the abutting assembly swings along the shaft. Through the deflection rod and the abutting assembly arranged in the device, when the connecting cylinder is connected with the bearing plate, deflection can be conducted through contact pressure application, so that the connecting cylinder can adapt to bearing plate connecting columns with different diameters, the universality of the connecting cylinder is better, the connecting stability is better, and the situation that shaking influences impact is generated is avoided.

Description

Technical Field

[0001] This utility model relates to the field of fill compaction degree testing technology, and more specifically, to a roadbed fill compaction degree testing device. Background Technology

[0002] Filler compaction testing refers to the device used to test the density of filler materials in roadbeds.

[0003] Existing compaction testing devices use a falling weight meter for testing. However, the falling weight and the load-bearing plate on existing falling weight meters are set separately, so the connection size between the two is also fixed. When dealing with different specifications of load-bearing plates used in different places, the entire set needs to be replaced because the diameter does not match, which reduces the versatility of the falling weight. Furthermore, because it is difficult to keep the falling weight stably upright after connection, the angle of fall will be deviated, affecting the accuracy of the information. Utility Model Content

[0004] The purpose of this utility model is to provide a roadbed fill compaction degree testing device, which solves the problem that the falling hammer and the load-bearing plate on the falling hammer meter are separate. Therefore, when using load-bearing plates of different specifications in different sites, they cannot be connected together due to mismatch, resulting in poor versatility.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides a roadbed fill compaction degree testing device, including a bearing plate, a connecting rod connected above the bearing plate, a connecting cylinder provided at the bottom of the connecting rod, an elastic cylinder provided at the top of the connecting cylinder, a drop hammer connected in the middle of the connecting rod, a limit rod connected at the top of the connecting rod, an engagement groove provided inside the connecting cylinder, a deflection rod connected in the engagement groove, and a stop component connected to one side of the deflection rod, the stop component swinging along the axis.

[0007] Preferably, the connecting cylinder further includes a sliding groove, which is disposed on the top of the inner wall of the connecting cylinder.

[0008] Preferably, the deflection rod further includes a hinge shaft, a telescopic section, and a slider. The hinge shaft is located at one end of the deflection rod, the telescopic section is connected to the middle of the deflection rod, and the slider is located at the end of the deflection rod away from the hinge shaft.

[0009] Preferably, the deflection rod is connected to the fitting groove via a hinge shaft at one end, and both ends of the hinge shaft are connected to the inner wall of the fitting groove via torsion springs.

[0010] Preferably, the slider is a block hinged to one end of the deflection rod, and the slider is T-shaped and connected in the sliding groove.

[0011] Preferably, the abutment component includes a shrinkage groove, an abutment rod, and a pressure block. The shrinkage groove is disposed on one side of the deflection rod, the abutment rod is disposed in the shrinkage groove, and the pressure block is disposed at the top of the abutment rod.

[0012] Preferably, the abutment rod is connected to the shrinkage groove via a top hinge shaft, and torsion springs are provided on both sides of the hinge shaft.

[0013] Preferably, the abutment rod and the pressure block are arranged in an "L" shape.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0015] 1. The deflection rod and abutment component in this device can deflect the connecting cylinder by applying pressure during connection with the bearing plate, thereby allowing the connecting cylinder to adapt to bearing plate connecting columns of different diameters. This improves the versatility of the connecting cylinder and enhances the stability of the connection, preventing shaking and impact. 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 side view sectional structural diagram of the connecting cylinder of this utility model.

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0019] Reference numerals: 1-bearing plate, 2-connecting rod, 201-connecting cylinder, 2011-fitting groove, 2012-sliding groove, 202-elastic cylinder, 203-falling hammer, 204-limiting rod, 3-deflection rod, 301-hinge shaft, 302-telescopic section, 303-contraction groove, 304-abutting rod, 3041-pressure block, 305-slider. Detailed Implementation

[0020] The following is combined Figures 1 to 3 This utility model will be described in detail.

[0021] A roadbed fill compaction degree testing device includes a bearing plate 1, a connecting rod 2 connected above the bearing plate 1, a connecting cylinder 201 at the bottom of the connecting rod 2, an elastic cylinder 202 at the top of the connecting cylinder 201, a drop hammer 203 connected in the middle of the connecting rod 2, a limit rod 204 connected at the top of the connecting rod 2, a fitting groove 2011 inside the connecting cylinder 201, a deflection rod 3 connected in the fitting groove 2011, and a stop component connected to one side of the deflection rod 3, the stop component swinging along the axis.

[0022] First, the bearing plate 1 is placed in the designated position above the road filler. Then, the connecting rod 2 is connected to the bearing plate 1 through the connecting cylinder 201. Then, the drop hammer 203 is raised along the connecting rod 2 by manual control and then falls to impact the elastic cylinder 202, so that the impact force is transmitted to the filler, causing the ground filler to deform and vibrate. Then, the information of ground deformation and vibration is collected by the sensor. The compaction degree of the filler is determined by multiple impact tests.

[0023] Furthermore, the connecting cylinder 201 also includes a sliding groove 2012, which is disposed on the top of the inner wall of the connecting cylinder 201. The deflecting rod 3 also includes a hinge shaft 301, a telescopic section 302, and a slider 305. The hinge shaft 301 is disposed at one end of the deflecting rod 3, the telescopic section 302 is connected to the middle of the deflecting rod 3, and the slider 305 is disposed at the end of the deflecting rod 3 away from the hinge shaft 301. The deflecting rod 3 is connected to the fitting groove 2011 through one end of the hinge shaft 301, and both ends of the hinge shaft 301 are connected to the inner wall of the fitting groove 2011 through torsion springs. The slider 305 is a square block that is hinged to one end of the deflecting rod 3, and the slider 305 is connected in a "T" shape in the sliding groove 2012.

[0024] Meanwhile, when the connecting cylinder 201 is connected to the cylinder at the top of the bearing plate 1, the cylinder will abut against the deflection rod 3 at different positions inside the connecting cylinder 201 according to different diameters. By applying pressure, the cylinder will squeeze the deflection rod 3 to deflect along the hinge shaft 301 to adapt to the diameter of the cylinder. When the deflection rod 3 deflects, the top of the deflection rod 3 will move in the sliding groove 2012 through the slider 305. At the same time, the telescopic section 302 will extend according to the angle of deflection. In combination with the angle of deflection, the deflection rod 3 can deflect stably. The torsion spring of the hinge shaft 301 can also generate a clamping force to return to the cylinder with different diameters, so that the connecting cylinder 201 can stably cooperate with the bearing plate 1 of different specifications, making it more versatile.

[0025] Furthermore, the abutment assembly includes a shrinkage groove 303, an abutment rod 304, and a pressure block 3041. The shrinkage groove 303 is disposed on one side of the deflection rod 3, the abutment rod 304 is disposed in the shrinkage groove 303, and the pressure block 3041 is disposed at the top of the abutment rod 304. The abutment rod 304 is connected to the shrinkage groove 303 through a top hinge shaft, and torsion springs are provided on both sides of the hinge shaft. The abutment rod 304 and the pressure block 3041 are arranged in an "L" shape.

[0026] Finally, as the cylinder rises against the deflection rod 3, it will come into contact with the pressure block 3041. By applying force to the pressure block 3041, the entire abutment rod 304 will deflect out of the contraction groove 303 and fit against the surface of the cylinder, thereby increasing the stability of the cylinder.

[0027] The following is a detailed implementation process of this utility model: First, the bearing plate 1 is placed in a designated position above the road filler. Then, the connecting rod 2 is connected to the bearing plate 1 via the connecting cylinder 201. Next, the drop hammer 203 is manually controlled to rise along the connecting rod 2 and then fall to impact the elastic cylinder 202, transmitting the impact force to the filler and causing deformation and vibration. Sensors collect information on the ground deformation and vibration, and multiple impact tests determine the compaction degree of the filler. Simultaneously, when the connecting cylinder 201 connects to the cylinder at the top of the bearing plate 1, the cylinder, depending on its diameter, abuts against the deflection rod 3 at different positions within the connecting cylinder 201. Applying pressure causes the cylinder to squeeze the deflection rod 3 and deflect it along the hinge axis 301 to adapt to the circular... The diameter of the cylinder is determined by the sliding rod 3. When the cylinder deflects, its top moves in the sliding groove 2012 via the slider 305. At the same time, the telescopic section 302 extends according to the deflection angle. This allows the deflection rod 3 to deflect stably. The torsion spring of the hinge shaft 301 can also generate a clamping force to return to the cylinder and apply pressure to cylinders of different diameters. This allows the connecting cylinder 201 to stably cooperate with the bearing plate 1 of different specifications, improving its versatility. Finally, as the cylinder rises against the deflection rod 3, it will abut against the pressure block 3041. By applying force to the pressure block 3041, the entire abutment rod 304 will deflect out of the contraction groove 303 and fit against the surface of the cylinder, thereby increasing the stability of the cylinder.

Claims

1. A roadbed filler compaction degree detection device, comprising a bearing plate (1), a connecting rod (2) is connected above the bearing plate (1), a connecting cylinder (201) is arranged at the bottom of the connecting rod (2), an elastic cylinder (202) is arranged at the top of the connecting cylinder (201), a drop hammer (203) is connected to the middle of the connecting rod (2), and a limiting rod (204) is connected to the top of the connecting rod (2), characterized in that, The inside of the connecting cylinder (201) is provided with a fitting groove (2011), a deflection rod (3) is connected in the fitting groove (2011), one side of the deflection rod (3) is connected with an abutting assembly, and the abutting assembly swings along an axis.

2. The subgrade filling compactness detection device according to claim 1, characterized in that, The connecting cylinder (201) further comprises a sliding groove (2012) which is arranged at the top of the inner wall of the connecting cylinder (201).

3. The device for detecting the compaction degree of subgrade filling material according to claim 1, characterized in that, The deflection rod (3) further comprises a hinged shaft (301), an extension section (302) and a sliding block (305), the hinged shaft (301) is arranged at one end of the deflection rod (3), the extension section (302) is connected at the middle of the deflection rod (3), and the sliding block (305) is arranged at the end of the deflection rod (3) away from the hinged shaft (301).

4. The device for detecting the compaction degree of subgrade filling material according to claim 3, characterized in that, The deflection rod (3) is connected in the fitting groove (2011) through one end hinged shaft (301), and both ends of the hinged shaft (301) are connected with the inner wall of the fitting groove (2011) through torsional springs.

5. The device for detecting the degree of compaction of embankment filler according to claim 3, wherein The sliding block (305) is a square block hingedly connected at one end of the deflection rod (3), and the sliding block (305) is in the form of a "T" letter and is connected in the sliding groove (2012).

6. The subgrade fill compactness detection device of claim 1, wherein, The abutting assembly comprises a contraction groove (303), an abutting rod (304) and a pressure block (3041), the contraction groove (303) is arranged at one side of the deflection rod (3), the abutting rod (304) is arranged in the contraction groove (303), and the pressure block (3041) is arranged at the top end of the abutting rod (304).

7. The subgrade fill compactness detection device of claim 6, wherein, The abutting rod (304) is connected in the contraction groove (303) through a top hinged shaft, and torsional springs are arranged at both sides of the hinged shaft.

8. The subgrade fill compactness detection device of claim 6, wherein, The abutting rod (304) and the pressure block (3041) are arranged in the form of an "L" letter.

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