Asphalt needle penetration lifting device

Abstract

The utility model discloses an asphalt needle penetration lifting device which comprises a lifting rod fixedly arranged on the rear side of the top of a machine body, the top of the machine body is fixedly connected with a glass dish, a sampling barrel is placed in the glass dish, and a machine shell capable of vertically adjusting and sliding is arranged on the surface of the lifting rod. The bottom position of the needle head is in contact with the asphalt surface of the inner cavity of the sampling barrel by rotating the lifting rod, and after adjustment is completed, the barrel I is rotated to rotate on the surface of the threaded barrel in a threaded manner, so that the bottom of the barrel I is connected with a connecting plate to move downwards, the barrel II is driven to move downwards, and a limiting plate is in contact with the end surface of the sampling barrel; meanwhile, during contact, due to downward force, the rod body slides on the inner surface of the limiting groove through the limiting blocks on the two sides, so that the limiting blocks compress the springs, the limiting plates are better attached to the end face of the sampling barrel body under the elastic force action of the springs, and meanwhile, the situation that the limiting plates are in hard contact with the sampling barrel body is also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt penetration instruments, in particular to an asphalt penetration lifting device. Background Art

[0002] Asphalt penetration is one of the main quality indicators of asphalt. It is an indicator of the hardness and consistency of asphalt, and its ability to resist shear damage. It reflects the relative viscosity of asphalt under certain conditions. At 25°C and 5 seconds, under a load of 100 grams, the depth to which a standard cone vertically penetrates into the asphalt sample is the penetration, with units of 1 / 10 mm.

[0003] When using the asphalt penetration instrument, it is necessary to adjust the contact point between the needle and the sampling asphalt surface through the lifting adjustment rod, and then use the lifting mechanism to drive the needle to test the asphalt surface. Since the lifting mechanism drives the needle to penetrate directly or be pulled out, the sampling tube will be displaced, causing the sampling tube to be unstable. Utility Model Content

[0004] The utility model aims to provide an asphalt penetration needle lifting device, which has the purpose of stabilizing the position of a sampling tube, so as to solve the above-mentioned background technical problems.

[0005] The utility model solves the above-mentioned technical problem with the following technical solutions: an asphalt needle penetration lifting device, comprising a lifting rod fixedly arranged on the rear side of the top of a body, a glass dish fixedly connected to the top of the body, a sampling cylinder placed inside the glass dish, a housing for adjusting and sliding up and down arranged on the surface of the lifting rod, an electric telescopic rod fixedly connected to the inner cavity of the housing, a needle fixedly connected to the telescopic end of the electric telescopic rod through a connecting block, a threaded barrel fixedly connected to the bottom of the housing and located outside the electric telescopic rod, a barrel one threadedly connected to the surface of the threaded barrel, a barrel two fixedly connected to the bottom of the barrel one through a connecting plate, a through hole provided on the bottom end surface of the barrel two, a rod body provided inside the through hole, a limit plate fixedly connected to the bottom of the rod body, a spring sleeved on the upper position of the surface of the limit plate, limit blocks fixedly connected to both sides of the surface of the rod body, the bottom and top of the spring fixedly connected to the limit block and the top of the inner cavity of the through hole respectively, and limit grooves for the limit block to slide up and down are provided on both sides of the inner cavity of the through hole.

[0006] Preferably, a support column is fixedly connected to the top of the inner cavity of the through hole, and the spring is sleeved on the surface of the support column.

[0007] Preferably, the lowest end of the needle is lower than the lowest end surface of the limiting plate and is located at the axis of the threaded barrel.

[0008] Preferably, the number of the limiting plates is four, and they are arranged in corresponding through holes at 90 degrees to each other.

[0009] Preferably, the limiting plate is L-shaped and has a longitudinal length of two centimeters.

[0010] Preferably, the top of the inner cavity of the limiting plate is tightly fitted with the top end surface of the sampling cylinder, and one side of the inner cavity of the limiting plate is tightly fitted with the outer edge of the sampling cylinder.

[0011] 1. The beneficial effect of the utility model is that the utility model makes the bottom position of the needle contact with the asphalt surface of the inner cavity of the sampling cylinder by rotating the lifting rod. After the adjustment is completed, the rotating cylinder body 1 rotates on the surface thread of the threaded cylinder, so that the bottom connecting connecting plate of the cylinder body 1 moves downward, thereby driving the cylinder body 2 to move downward, so that the limit plate contacts the end face of the sampling cylinder body. At the same time, when in contact, due to the downward force, the rod body slides on the inner surface of the limit groove through the limit blocks on both sides, so that the limit block compresses the spring, and the elastic force of the spring is used to make the limit plate fit more closely to the end face of the sampling cylinder body. At the same time, it also avoids the situation of hard contact between the limit plate and the sampling cylinder body. By setting the above structure, the purpose of stabilizing the position of the sampling cylinder is achieved.

[0012] 2. The utility model limits the position of the spring by arranging a support column, and also supports the spring.

[0013] 3. The utility model sets four limit plates, which are arranged at 90 degrees to each other in corresponding through holes, so that the four end faces of the sampling cylinder can be limited to avoid uneven force.

[0014] 4. The utility model sets the limiting plate in an L-shaped design, so as to limit the contact between the top end surface and the outer edge of the sampling cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

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

[0018] Figure 3 This is a second schematic diagram of the cylinder of the utility model;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of point A in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Machine body; 2. Glass dish; 3. Sampling cylinder; 4. Lifting rod; 5. Machine casing; 6. Electric telescopic rod; 7. Needle; 8. Threaded cylinder; 9. Cylinder body 1; 10. Connecting plate; 11. Cylinder body 2; 12. Through hole; 13. Rod body; 14. Limit plate; 15. Spring; 16. Limit block; 17. Limit groove; 18. Support column. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the asphalt penetration lifting device of the present invention will be described with reference to the accompanying drawings. Embodiment one:

[0023] Figure 1-4The utility model shows an asphalt needle penetration lifting device, comprising a lifting rod 4 fixedly arranged on the rear side of the top of a body 1, a glass dish 2 fixedly connected to the top of the body 1, a sampling cylinder 3 placed inside the glass dish 2, a casing 5 for adjusting and sliding up and down is arranged on the surface of the lifting rod 4, an electric telescopic rod 6 is fixedly connected to the inner cavity of the casing 5, a needle 7 is fixedly connected to the telescopic end of the electric telescopic rod 6 through a connecting block, a threaded cylinder 8 is fixedly connected to the bottom of the casing 5 and located on the outside of the electric telescopic rod 6, a cylinder 1 9 is threadedly connected to the surface of the threaded cylinder 8, a cylinder 1 9 is fixedly connected to the bottom of the cylinder 1 9 through a connecting plate 10, and a cylinder 2 11 is fixedly connected to the cylinder 2 1 A through hole 12 is provided on the bottom end face of the sampling cylinder 3, a rod body 13 is provided inside the through hole 12, a limiting plate 14 is fixedly connected to the bottom of the rod body 13, and the limiting plates 14 are four in number and are arranged in the corresponding through holes 12 at 90 degrees to each other. By setting the limiting plates 14 to be four in number and being arranged in the corresponding through holes 12 at 90 degrees to each other, the four end faces of the sampling cylinder 3 can be limited to avoid uneven force. The limiting plate 14 is L-shaped and has a longitudinal length of two centimeters. By setting the limiting plate 14 to be L-shaped, the top end face and the outer edge of the sampling cylinder 3 can be limited in contact, and the limiting The top of the inner cavity of the positioning plate 14 fits tightly with the top end face of the sampling cylinder 3, and one side of the inner cavity of the limiting plate 14 fits tightly with the outer edge of the sampling cylinder 3. A spring 15 is sleeved on the upper position of the surface of the limiting plate 14. Both sides of the surface of the rod body 13 are fixedly connected to the limiting blocks 16. The bottom and top ends of the spring 15 are respectively fixedly connected to the limiting blocks 16 and the top of the inner cavity of the through hole 12. Both sides of the inner cavity of the through hole 12 are provided with limiting grooves 17 for the limiting blocks 16 to slide up and down. The bottom position of the needle 7 is brought into contact with the asphalt surface of the inner cavity of the sampling cylinder 3 by rotating the lifting rod 4. After the adjustment is completed, the rotating cylinder 9 is moved on the surface of the threaded cylinder 8. The thread rotates, so that the connecting plate 10 connected to the bottom of the cylinder 1 9 moves downward, thereby driving the cylinder 2 11 to move downward, so that the limit plate 14 contacts the end face of the sampling cylinder 3. At the same time, when in contact, due to the downward force, the rod 13 slides on the inner surface of the limit groove 17 through the limit blocks 16 on both sides, so that the limit blocks 16 compress the spring 15. The elastic force of the spring 15 makes the limit plate 14 fit more closely to the end face of the sampling cylinder 3. At the same time, it also avoids the situation where hard contact is generated between the limit plate 14 and the sampling cylinder 3. By setting the above structure, the purpose of stabilizing the position of the sampling cylinder is achieved. Embodiment 2:

[0024] Figure 1-4The utility model shows an asphalt needle penetration lifting device, which includes a lifting rod 4 fixedly arranged on the rear side of the top of a body 1, a glass dish 2 fixedly connected to the top of the body 1, a sampling cylinder 3 placed inside the glass dish 2, a casing 5 that can be adjusted and slid up and down is arranged on the surface of the lifting rod 4, an electric telescopic rod 6 is fixedly connected to the inner cavity of the casing 5, a needle 7 is fixedly connected to the telescopic end of the electric telescopic rod 6 through a connecting block, a threaded cylinder 8 is fixedly connected to the bottom of the casing 5 and located on the outside of the electric telescopic rod 6, a cylinder 1 9 is threadedly connected to the surface of the threaded cylinder 8, a cylinder 1 9 is fixedly connected to the bottom of the cylinder 1 9 through a connecting plate 10, a cylinder 2 11 is fixedly connected to the bottom end surface of the cylinder 2 11, a through hole 12 is opened on the bottom end surface of the through hole 12, and a through hole 12 is arranged inside There is a rod body 13, the bottom of the rod body 13 is fixedly connected to a limit plate 14, the lowest end of the needle 7 is lower than the lowest end surface of the limit plate 14 and is located at the axis of the threaded tube 8, a spring 15 is sleeved on the upper position of the surface of the limit plate 14, both sides of the surface of the rod body 13 are fixedly connected to limit blocks 16, the bottom and top ends of the spring 15 are respectively fixedly connected to the limit blocks 16 and the top of the inner cavity of the through hole 12, a support column 18 is fixedly connected to the top of the inner cavity of the through hole 12, the spring 15 is sleeved on the surface of the support column 18, and the position of the spring 15 is limited by setting the support column 18, and the spring 15 is also supported at the same time, and both sides of the inner cavity of the through hole 12 are provided with limit grooves 17 for the limit blocks 16 to slide up and down.

[0025] Working principle: The utility model places the asphalt sample to be tested on the sampling cylinder 3, and places the sampling cylinder 3 in the glass dish 2, and uses its own reflector to rotate the lifting rod 4 to make the bottom position of the needle 7 contact with the asphalt surface of the inner cavity of the sampling cylinder 3. After the adjustment is completed, the rotating cylinder 1 9 is threadedly rotated on the surface of the threaded cylinder 8, so that the bottom of the cylinder 1 9 connected to the connecting plate 10 moves downward, thereby driving the cylinder 2 11 to move downward, so that the limit plate 14 contacts with the end face of the sampling cylinder 3, and at the same time, the connecting plate 14 is connected to the end face of the sampling cylinder 3. When touched, due to the downward force, the rod body 13 slides on the inner surface of the limiting groove 17 through the limiting blocks 16 on both sides, so that the limiting blocks 16 compress the spring 15. The elastic force of the spring 15 makes the limiting plate 14 fit more closely to the end face of the sampling cylinder 3. The limiting plate 14 is designed to be L-shaped, so that the top end face and the outer edge of the sampling cylinder 3 can be limited and contacted, thereby stabilizing the position of the sampling cylinder. After limiting, the electric telescopic rod 6 is started, thereby driving the needle 7 to perform a needle penetration test on the asphalt in the sampling cylinder 3.

Claims

1. An asphalt penetration needle lifting device, comprising a lifting rod (4) fixedly arranged on the rear side of the top of a body (1), a glass dish (2) fixedly connected to the top of the body (1), a sampling cylinder (3) placed inside the glass dish (2), a housing (5) that can be adjusted and slid up and down is arranged on the surface of the lifting rod (4), an electric telescopic rod (6) is fixedly connected to the inner cavity of the housing (5), and a needle (7) is fixedly connected to the telescopic end of the electric telescopic rod (6) via a connecting block, characterized in that: A threaded cylinder (8) is fixedly connected to the bottom of the housing (5) and located outside the electric telescopic rod (6); a cylinder body (9) is threadedly connected to the surface of the threaded cylinder (8); a cylinder body (11) is fixedly connected to the bottom of the cylinder body (9) via a connecting plate (10); a through hole (12) is provided on the bottom end surface of the cylinder body (11); a rod body (13) is provided inside the through hole (12); a limit plate (14) is fixedly connected to the bottom of the rod body (13); a spring (15) is sleeved on the upper position of the surface of the limit plate (14); both sides of the surface of the rod body (13) are fixedly connected to limit blocks (16); the bottom end and top end of the spring (15) are fixedly connected to the limit block (16) and the top of the inner cavity of the through hole (12) respectively; both sides of the inner cavity of the through hole (12) are provided with limit grooves (17) for the limit block (16) to slide up and down.

2. The asphalt penetration lifting device according to claim 1, characterized in that: A support column (18) is fixedly connected to the top of the inner cavity of the through hole (12), and the spring (15) is sleeved on the surface of the support column (18).

3. The asphalt penetration lifting device according to claim 1, characterized in that: The lowest end of the needle (7) is lower than the lowest end surface of the limiting plate (14) and is located at the axis of the threaded barrel (8).

4. The asphalt penetration lifting device according to claim 1, characterized in that: The number of the limiting plates (14) is four, and they are arranged in corresponding through holes (12) at 90 degrees relative to each other.

5. The asphalt penetration lifting device according to claim 4, characterized in that: The limiting plate (14) is L-shaped and has a longitudinal length of two centimeters.

6. The asphalt penetration lifting device according to claim 5, characterized in that: The top of the inner cavity of the limiting plate (14) is tightly fitted with the top end surface of the sampling cylinder (3), and one side of the inner cavity of the limiting plate (14) is tightly fitted with the outer edge of the sampling cylinder (3).

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