Highway subgrade strength detection sampling device

Abstract

The utility model discloses a highway subgrade strength detection sampling device, which belongs to the technical field of sampling devices and comprises a fixing frame, a sampling drill rod is fixedly connected to the top of the fixing frame in a penetrating manner, a notch is formed in the outer side wall of the sampling drill rod in a penetrating manner, an arc-shaped block is rotatably connected to the inner side wall of the sampling drill rod, and a spring pin is fixedly connected to the sampling drill rod through a containing groove. An elastic sheet is fixedly connected to the outer side wall of the sampling drill rod, a sliding rod is slidably connected to the inner side wall of the sampling drill rod, an extrusion plate is fixedly connected to the bottom of the sliding rod, and an extrusion spring is fixedly connected to the top of the extrusion plate. According to the highway subgrade strength detection sampling device, through the sampling drill rod, the notch, the arc-shaped block, the containing groove, a spring pin, an elastic piece, a sliding rod, an extrusion plate and an extrusion spring, a sample in the sampling drill rod can be conveniently taken out after sampling, the sampling working efficiency is improved, the sample is pushed out through the sliding rod, the extrusion plate and the extrusion spring during sampling, the stress uniformity of the sample is improved, and the sampling accuracy is improved. The sample is prevented from being damaged or incomplete when being taken out.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling devices, and in particular relates to a highway roadbed strength detection sampling device. Background Art

[0002] Roads and bridges are the country's transportation infrastructure and play an important role in the development of the national economy. With the increase in the service life of a large number of bridges, various diseases have occurred under the combined effects of load and environment, posing a hidden danger to the safe operation of bridges. Therefore, we need a highway roadbed strength detection sampling device;

[0003] However, since the sampling rod needs to be continuously inserted into the roadbed during sampling, so that the sample enters the interior of the sampling rod, the friction between the outer wall of the sample and the inner wall of the sampling rod is relatively large, and the outer surface of the roadbed sample has a certain degree of adhesion, so it is difficult to take out the sample. After the sampling is completed, due to the difficulty in taking out, the operator needs to spend more time and energy on the sampling work, which reduces the work efficiency. Secondly, the sample may be damaged due to improper operation of the staff during the taking out process, which affects the reliability of the test results.

[0004] In order to solve the above problems, this application proposes a highway roadbed strength detection sampling device. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a highway roadbed strength detection sampling device to overcome the above technical problems existing in the existing related technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A highway roadbed strength detection sampling device comprises a fixing frame, a sampling rod is fixedly connected through the top of the fixing frame, a notch is formed through the outer wall of the sampling rod, an arc block is rotatably connected to the inner wall of the sampling rod, a receiving groove is formed inside the sampling rod, a spring pin is fixedly connected to the sampling rod through the receiving groove, a spring piece is fixedly connected to the outer wall of the sampling rod, a sliding rod is slidably connected to the inner wall of the sampling rod, an extrusion plate is fixedly connected to the bottom of the sliding rod, and an extrusion spring is fixedly connected to the top of the extrusion plate.

[0008] Preferably, the top of the slide rod is fixedly connected with a tooth plate, the outer wall of the sampling rod is penetrated with a rotating hole, the sampling rod is rotatably connected to a crank through the rotating hole, the outer wall of the crank is fixedly connected with a gear, and the gear is meshed with the tooth plate. By setting the rotating hole, tooth plate, crank and gear, the position of the slide rod and the extrusion plate can be easily adjusted, thereby facilitating the continuous use of the equipment.

[0009] Preferably, a hydraulic rod is fixedly connected through the top of the fixed frame, and the telescopic end of the hydraulic rod is fixedly connected to a connecting plate, and the inner wall of the connecting plate is fixedly connected to the outer wall of the sampling rod. By arranging the hydraulic rod and the connecting plate, it is convenient for the operator to use the sampling rod to take samples of the roadbed.

[0010] Preferably, the bottom of the fixing frame is fixedly connected to a base, an outer side wall of the base is provided with a square groove, the base is rotatably connected to a rotating block via the square groove, and an inner side wall of the rotating block is rotatably connected to an electric telescopic rod. By providing the rotating block and the electric telescopic rod, it is convenient to provide auxiliary support for the base to prevent the equipment from tipping over.

[0011] Preferably, the telescopic end of the electric telescopic rod is fixedly connected with a contact plate, a cavity is opened inside the contact plate, and the contact plate is slidably connected with a moving block through the cavity. By arranging the contact plate, the cavity and the moving block, the contact area between the electric telescopic rod and the ground is conveniently increased, thereby improving the stability of the equipment.

[0012] Preferably, a movable support foot is fixedly connected to the bottom of the base, and the movable support foot is provided to facilitate movement of the device.

[0013] To sum up, the technical effects and advantages of the utility model are as follows: the highway roadbed strength detection sampling device, through the sampling rod, notch, arc block, accommodating groove, spring pin, spring piece, slide rod, extrusion plate, extrusion spring, is convenient for taking out the sample inside the sampling rod after sampling, thereby improving the sampling work efficiency; and when sampling, the slide rod, extrusion plate, and extrusion spring push the sample out, thereby improving the force uniformity of the sample and avoiding damage or incompleteness of the sample when taking it out.

[0014] Through the coordinated use of rotating holes, toothed plates, crank handles, and gears, it is easy to adjust the position of the slide rod and extrusion plate, reduce the labor intensity of the staff, and improve the construction continuity of the equipment. Through the coordinated use of rotating blocks, electric telescopic rods, and resistance plates, it is easy to support the base, improve the stability of the equipment during use, and prevent the equipment from tipping over during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the sampling brazing rod and related parts of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the arc block and related parts of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the toothed plate and related parts of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the base and related parts of the utility model;

[0020] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure in the middle.

[0021] In the figure:

[0022] 1. Fixed frame; 2. Sampling drill; 3. Notch; 4. Arc block; 5. Receiving groove; 6. Spring pin; 7. Shrapnel; 8. Sliding rod; 9. Extrusion plate; 10. Extrusion spring; 11. Rotating hole; 12. Tooth plate; 13. Crank; 14. Gear; 15. Hydraulic rod; 16. Connecting plate; 17. Base; 18. Square groove; 19. Rotating block; 20. Electric telescopic rod; 21. Resistance plate; 22. Cavity; 23. Moving block; 24. Moving support foot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-3A highway roadbed strength detection sampling device comprises a fixing frame 1, a sampling rod 2 is fixedly connected through the top of the fixing frame 1, the sampling rod 2 is located at the top center of the fixing frame 1, a notch 3 is opened through the outer wall of the sampling rod 2, two notches 3 are provided, and the two notches 3 are symmetrically distributed with the central axis plane of the sampling rod 2, an arc block 4 is rotatably connected to the inner wall of the sampling rod 2, two arc blocks 4 are provided, the two arc blocks 4 are respectively located inside the two notches 3, and the tops of the two arc blocks 4 are respectively provided with slots, and the bottoms of the slots are provided with an inclination angle, a receiving groove 5 is opened inside the sampling rod 2, two receiving grooves 5 are provided, and the two receiving grooves 5 are respectively located above the two arc blocks 4, the sampling rod 2 is fixedly connected with spring pins 6 through the two receiving grooves 5, and the two spring pins 6 are far One end away from the two accommodating grooves 5 is respectively located inside the two arc blocks 4, and the inclination angle of the ends of the two spring pins 6 close to the two arc blocks 4 is adapted to the inclination angle of the bottom of the top slots of the two arc blocks 4. The outer wall of the sampling drill 2 is fixedly connected with a spring piece 7, and two spring pieces 7 are provided. The positions of the two spring pieces 7 correspond to the positions of the two arc blocks 4, and the ends of the two spring pieces 7 close to the two arc blocks 4 are fitted with the outer walls of the two arc blocks 4. The inner wall of the sampling drill 2 is slidably connected with a slide rod 8, and the slide rod 8 is located at the center of the sampling drill 2. The bottom of the slide rod 8 is fixedly connected with an extrusion plate 9, and the extrusion plate 9 is located above the two arc blocks 4. The top of the extrusion plate 9 is fixedly connected with an extrusion spring 10, and the end of the extrusion spring 10 away from the extrusion plate 9 is fixedly connected to the inner wall of the sampling drill 2;

[0025] When sampling, the sample is sampled inside the sampling dowel 2 along the bottom of the sampling dowel 2. When the top of the sample contacts the outer side walls of the two arc blocks 4, because the outer side walls of the two arc blocks 4 are provided with an arc, the two arc blocks 4 are forced to rotate toward the outside of the sampling dowel 2 when in contact. At this time, with the rotation of the two arc blocks 4, the two spring pins 6 are gradually retracted to the inside of the two accommodating grooves 5 under the push of the two arc blocks 4. At the same time, with the rotation of the two arc blocks 4, the two arc blocks 4 release the limit of the extrusion plate 9. Under the action of the extrusion spring 10, the extrusion plate 9 moves toward the bottom of the sampling dowel 2, and at the same time, pushes the sample located inside the sampling dowel 2 to move toward the bottom of the sampling dowel 2 until the sample is pushed out of the sampling dowel 2. The sampling is completed. When the staff resets the extrusion plate 9, the two spring pieces 7 squeeze the two arc blocks 4 respectively under the action of their own elastic force, so that the two arc blocks 4 are reset, thereby re-limiting the extrusion plate 9.

[0026] Reference Figure 4The top of the slide bar 8 is fixedly connected with a tooth plate 12, which is located inside the sampling drill 2. A rotating hole 11 is formed through the outer wall of the sampling drill 2. The longitudinal cross section of the rotating hole 11 is in an eight-shaped shape. The sampling drill 2 is rotatably connected with a crank 13 through the rotating hole 11. The outer wall of the crank 13 is matched with the inner wall of the two ends of the rotating hole 11. The outer wall of the crank 13 is fixedly connected with a gear 14, which meshes with the tooth plate 12. When the position of the tooth plate 12 needs to be adjusted, When adjusting the height of the tooth plate 12, the crank 13 is moved to the end of the rotating hole 11 close to the tooth plate 12, so that the outer wall of the gear 14 is meshed with the outer wall of the tooth plate 12, and the crank 13 is rotated to adjust the height of the tooth plate 12. When the adjustment is completed, the two arc blocks 4 limit the extrusion plate 9, and the position of the crank 13 is adjusted to the end of the rotating hole 11 away from the tooth plate 12, so that the gear 14 is separated from the tooth plate 12, thereby avoiding obstruction of the tooth plate 12 with the gear 14 when it moves down.

[0027] The crank handle 13 can be inserted into the rotating hole 11 in the following ways:

[0028] 1: The crank 13 is two separate right-angle cranks. When inserting, the gear 14 is placed inside the sampling rod 2, and then the two separate right-angle cranks are welded to the outer wall of 4.

[0029] 2: The crank 13 is composed of three round rods. After the gear 14 is placed inside the sampling probe 2, the longer part of the middle part of the crank 13 is inserted into the gear 14. After welding and fixing, the other two shorter round rods are welded to the two ends of the middle part of the crank 13.

[0030] Reference Figure 1 A hydraulic rod 15 is fixedly connected to the top of the fixed frame 1. Two hydraulic rods 15 are provided. The telescopic ends of the two hydraulic rods 15 are fixedly connected to a connecting plate 16. The inner wall of the connecting plate 16 is fixedly connected to the outer wall of the sampling drill 2. When in use, the two hydraulic rods 15 are started, and the two hydraulic rods 15 drive the connecting plate 16 to move, thereby driving the sampling drill 2 to move, and then sampling the roadbed.

[0031] Reference Figure 1 and Figure 5 The bottom of the fixed frame 1 is fixedly connected with a base 17, and the outer wall of the base 17 is provided with a square groove 18. There are two square grooves 18, which are respectively located on both sides of the base 17. The base 17 is rotatably connected to two rotating blocks 19 through the two square grooves 18. The inner side walls of the four rotating blocks 19 are rotatably connected with electric telescopic rods 20. When in use, the telescopic ends of the four electric telescopic rods 20 are in contact with the ground, so as to support the equipment and prevent the equipment from tipping over during sampling.

[0032] Reference Figure 5 and Figure 6 The telescopic ends of the four electric telescopic rods 20 are respectively fixedly connected with a contact plate 21, and a cavity 22 is opened inside the four contact plates 21. The four contact plates 21 are respectively slidably connected with a moving block 23 through the four cavities 22. When in use, the moving block 23 can be pulled out of the cavity 22, and the contact area between the contact plate 21 and the ground is increased, thereby improving the stability of the equipment.

[0033] Reference Figure 5 The bottom of the base 17 is fixedly connected with a movable support foot 24, and there are four movable support feet 24. The four movable support feet 24 are respectively located at the four corners of the bottom of the base 17. Wheels are set at the bottom of the four movable support feet 24, so that the staff can easily push the equipment to move.

[0034] Working principle: The staff pushes the base 17 to the designated position, rotates the four rotating blocks 19 so that the four rotating blocks 19 are located outside the base 17, and at the same time, the telescopic ends of the four electric telescopic rods 20 are in contact with the ground to support the equipment, and starts the two hydraulic rods 15, which drive the connecting plate 16 to move, thereby driving the sampling rod 2 to move, and then sampling the roadbed;

[0035] When sampling, the sample is sampled inside the sampling dowel 2 along the bottom of the sampling dowel 2. When the top of the sample contacts the outer side walls of the two arc blocks 4, because the outer side walls of the two arc blocks 4 are provided with an arc, the two arc blocks 4 are forced to rotate toward the outside of the sampling dowel 2 when in contact. At this time, with the rotation of the two arc blocks 4, the two spring pins 6 are gradually retracted to the inside of the two accommodating grooves 5 under the push of the two arc blocks 4. At the same time, with the rotation of the two arc blocks 4, the two arc blocks 4 release the limit of the extrusion plate 9. Under the action of the extrusion spring 10, the extrusion plate 9 moves toward the bottom of the sampling dowel 2, and at the same time, pushes the sample located inside the sampling dowel 2 to move toward the bottom of the sampling dowel 2 until the sample is pushed out of the sampling dowel 2. The sampling is completed. When the staff resets the extrusion plate 9, the two spring pieces 7 squeeze the two arc blocks 4 respectively under the action of their own elastic force, so that the two arc blocks 4 are reset, thereby re-limiting the extrusion plate 9.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highway subgrade strength detection sampling device, comprising a fixing frame (1), It is characterized in that A sampling pin (2) is fixedly connected to the top of the fixing frame (1), a notch (3) is formed through the outer wall of the sampling pin (2), an arc block (4) is rotatably connected to the inner wall of the sampling pin (2), a receiving groove (5) is formed inside the sampling pin (2), a spring pin (6) is fixedly connected to the sampling pin (2) through the receiving groove (5), a spring sheet (7) is fixedly connected to the outer wall of the sampling pin (2), a sliding rod (8) is slidably connected to the inner wall of the sampling pin (2), a squeezing plate (9) is fixedly connected to the bottom of the sliding rod (8), and a squeezing spring (10) is fixedly connected to the top of the squeezing plate (9).

2. A highway subgrade strength detection sampling device according to claim 1, It is characterized in that The top of the slide rod (8) is fixedly connected to a toothed plate (12), the outer wall of the sampling rod (2) is penetrated by a rotating hole (11), the sampling rod (2) is rotatably connected to a crank (13) through the rotating hole (11), the outer wall of the crank (13) is fixedly connected to a gear (14), and the gear (14) is meshed with the toothed plate (12).

3. A highway subgrade strength detection sampling device according to claim 1, It is characterized in that A hydraulic rod (15) is fixedly connected to the top of the fixed frame (1), a connecting plate (16) is fixedly connected to the telescopic end of the hydraulic rod (15), and an inner side wall of the connecting plate (16) is fixedly connected to the outer side wall of the sampling braze (2).

4. A highway subgrade strength detection sampling device according to claim 1, It is characterized in that The bottom of the fixing frame (1) is fixedly connected to a base (17), an outer side wall of the base (17) is provided with a square groove (18), the base (17) is rotatably connected to a rotating block (19) via the square groove (18), and an inner side wall of the rotating block (19) is rotatably connected to an electric telescopic rod (20).

5. A highway subgrade strength detection sampling device according to claim 4, It is characterized in that The telescopic end of the electric telescopic rod (20) is fixedly connected to a contact plate (21), a cavity (22) is provided inside the contact plate (21), and the contact plate (21) is slidably connected to a moving block (23) via the cavity (22).

6. A highway subgrade strength detection sampling device according to claim 4, It is characterized in that A movable supporting foot (24) is fixedly connected to the bottom of the base (17).

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