Constant-temperature asphalt extensometer

Abstract

The utility model discloses a constant temperature asphalt extensometer, which relates to the technical field of asphalt detection, and comprises an instrument body and a motor arranged in the instrument body, the output end of the motor is fixedly connected with a screw rod, the outer circular surface of the screw rod is in threaded connection with a nut seat, the upper surface of the nut seat is fixedly connected with a test sliding plate, and the test sliding plate is fixedly connected with the test sliding plate. A water tank is arranged on the upper surface and in the instrument body, a test fixing plate is fixedly connected to the inner bottom of the water tank, and an angle adjusting mechanism is arranged on the upper surface of a test sliding plate. Compared with an existing common constant-temperature asphalt extensometer, the constant-temperature asphalt extensometer has the advantages that during testing, the motor is started to drive the testing fixing plate to perform an extensometer experiment on an asphalt sample in the testing mold and also can drive the control screen to slide together, so that the distance for an experimenter to observe and control the control screen can be reduced, timely control is facilitated, and the testing efficiency is improved. The angle adjusting mechanism can adjust the display angle of the control screen.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt detection, in particular to a constant temperature asphalt elongation instrument. Background Art

[0002] The asphalt extensometer is suitable for measuring the elongation of various types of asphalt, residues after distillation of liquid asphalt, and residues after evaporation of asphalt emulsion. The staff needs to make an asphalt test block first, inject a certain amount of water into the asphalt extensometer, and then place the asphalt test block in the water to test the elongation of the asphalt test block.

[0003] For example, a constant temperature digital display asphalt elongation meter with application number 202120297969.5 has a water tank on the instrument body, and the fixed plate, the first receiving plate, the traction plate and the second receiving plate are all located at the bottom of the water tank. A limit rod is provided on the traction plate, and the second receiving plate is slidably connected to the limit rod and passes through the limit rod. The first receiving plate is provided with a first boss, and the first boss on the first receiving plate corresponds to the position of the limit rod on the second receiving plate. A groove is provided on the first receiving plate, and a protrusion is provided on the second receiving plate. The protrusion is located in the groove and above the groove. This application has the effect of facilitating the placement of the test block into the instrument. However, like the traditional device, the control screen of this device is relatively fixed. When the experimenter operates the control screen, the distance is far, and it is difficult to quickly adjust the control screen according to the experimental conditions.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a constant temperature asphalt elongation meter is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a constant temperature asphalt elongation meter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a constant temperature asphalt elongation meter, comprising an instrument body and a motor installed inside the instrument body, the output end of the motor is fixedly connected to a screw, the outer cylindrical surface of the screw is threadedly connected to a nut seat, the upper surface of the nut seat is fixedly connected to a test slide, the upper surface and interior of the instrument body are provided with a water trough, the inner bottom of the water trough is fixedly connected to a test fixing plate, the upper surface of the test slide is provided with an angle adjustment mechanism, and a control screen is provided above the angle adjustment mechanism.

[0007] Preferably, the angle adjustment mechanism includes a mounting base fixedly connected to the upper surface of the test skateboard, and the lower surface of the control panel is fixedly connected to an ear plate. The left outer surface of the mounting base extends to the right outer surface and a fixing bolt is provided through the ear plate, and the left end of the fixing bolt is a knob-type design, and the right end is a nut design.

[0008] Preferably, a shock absorbing groove is provided on the upper surface of the instrument body, and the water tank is located inside the shock absorbing groove.

[0009] Preferably, a plurality of damping telescopic rods are fixedly connected to the inner bottom of the shock absorbing groove, and shock absorbing springs are arranged outside the damping telescopic rods.

[0010] Preferably, a storage groove is provided on the upper surface of the instrument body in front of the shock-absorbing groove, and a shaft rod is slidably connected to the interior of the storage groove.

[0011] Preferably, a glass cover is fixedly connected to the outer circumferential surface of the rotating shaft of the shaft rod, and an anti-drop handle is fixedly connected to the upper surface of the glass cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with an instrument body, a motor, a screw rod, a nut seat, a test slide plate, a water tank, a test fixing plate, an angle adjustment mechanism, a mounting seat, an ear plate, a fixing bolt, and a control screen. During the test, the motor starts to drive the screw rod to rotate, drive the nut seat and the test slide plate to slide, and perform an elongation test on the asphalt sample in the test mold together with the test fixing plate. During the stretching process of the nut seat, the control screen can be driven to slide together. This design can reduce the distance when the experimenter observes and operates the control screen, and is convenient for timely operation. The knob at the left end of the fixing bolt can be rotated to adjust the tightness of the mounting seat on the ear plate, so as to adjust the display angle of the control screen;

[0014] 2. The utility model is provided with a shock-absorbing groove, a damping telescopic rod, a shock-absorbing spring, a storage groove, a shaft rod, a glass cover, and an anti-drop handle. The damping telescopic rod and the shock-absorbing spring in the shock-absorbing groove can greatly reduce the influence of the vibration generated when the instrument body is working on the water tank, and prevent the vibration from causing the water in the water tank to vibrate and affecting the experimental data. The shock-absorbing groove and the water tank can be protected and covered by pulling out the shaft rod and the glass cover stored in the storage groove. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the local three-dimensional structure;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the angle adjustment mechanism 8 of the utility model;

[0018] Figure 4 For this utility model Figure 2 A schematic diagram of a partial cross-sectional structure from the front.

[0019] In the figure: 1. Instrument body; 2. Motor; 3. Screw; 4. Nut seat; 5. Test slide plate; 6. Water tank; 7. Test fixing plate; 8. Angle adjustment mechanism; 81. Mounting seat; 82. Ear plate; 83. Fixing bolt; 9. Control panel; 10. Shock-absorbing groove; 11. Damping telescopic rod; 12. Shock-absorbing spring; 13. Storage groove; 14. Shaft; 15. Glass cover; 16. Anti-drop handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 3 As shown, a constant temperature asphalt elongation instrument includes an instrument body 1 and a motor 2 installed inside the instrument body 1, the output end of the motor 2 is fixedly connected to a screw rod 3, the outer cylindrical surface of the screw rod 3 is threadedly connected to a nut seat 4, the upper surface of the nut seat 4 is fixedly connected to a test slide plate 5, the upper surface and interior of the instrument body 1 are provided with a water tank 6, the inner bottom of the water tank 6 is fixedly connected to a test fixing plate 7, the upper surface of the test slide plate 5 is provided with an angle adjustment mechanism 8, and a control panel 9 is provided above the angle adjustment mechanism 8. A constant temperature heating tube is provided at the inner bottom of the water tank 6 to provide a constant temperature condition, the test slide plate 5 extends to the inner bottom of the water tank 6 and is flush with the test fixing plate 7, limit sliding rods are provided on both sides of the screw rod 3, the nut seat 4 is slidably connected to the outer cylindrical surface of the limit sliding rod to improve stability, and the inner surface of the water tank 6 extends to the right side of the instrument body 1 The outer surface, the angle adjustment mechanism 8 includes a mounting base 81 fixedly connected to the upper surface of the test slide 5, and the lower surface of the control screen 9 is fixedly connected with an ear plate 82. The left outer surface of the mounting base 81 extends to the right outer surface and penetrates the ear plate 82 to be provided with a fixing bolt 83. The left end of the fixing bolt 83 is a knob-type design, and the right end is a nut design. During the test, the motor 2 is started to drive the screw 3 to rotate, drive the nut seat 4 and the test slide 5 to slide, and together with the test fixing plate 7, the elongation test of the asphalt sample in the test mold is carried out. During the stretching process of the nut seat 4, the control screen 9 can be driven to slide together. This design can reduce the distance when the experimenter observes and operates the control screen 9, which is convenient for timely operation. The knob at the left end of the fixing bolt 83 can be rotated to adjust the squeezing tightness of the mounting base 81 on the ear plate 82, so as to adjust the display angle of the control screen 9.

[0022] like Figure 1 , Figure 2 and Figure 4As shown, a shock absorbing groove 10 is provided on the upper surface of the instrument body 1 , and the water tank 6 is located inside the shock absorbing groove 10 .

[0023] Furthermore, a plurality of damping telescopic rods 11 are fixedly connected to the inner bottom of the shock absorbing groove 10 , and a shock absorbing spring 12 is arranged outside the damping telescopic rod 11 .

[0024] Furthermore, a storage groove 13 is provided on the upper surface of the instrument body 1 in front of the shock-absorbing groove 10, and an axle rod 14 is slidably connected inside the storage groove 13. Limiting sliding grooves are provided on the outer surfaces of both sides of the storage groove 13, and the axle rod 14 can be slidably connected to the inside of the storage groove 13 in a limited manner.

[0025] Furthermore, a glass cover 15 is fixedly connected to the outer cylindrical surface of the rotating shaft of the shaft rod 14, and an anti-drop handle 16 is fixedly connected to the upper surface of the glass cover 15. After the glass cover 15 is slid and stored in a specified position inside the storage groove 13, the anti-drop handle 16 can prevent the glass cover 15 from completely entering the storage groove 13.

[0026] Working principle: When using the constant temperature asphalt elongation meter, first, during the test, the motor 2 starts to drive the screw 3 to rotate, drive the nut seat 4 and the test slide plate 5 to slide, and together with the test fixing plate 7, the asphalt sample in the test mold is subjected to an elongation test. During the stretching process of the nut seat 4, the control screen 9 can be driven to slide together. The knob on the left end of the fixing bolt 83 can be rotated to adjust the tightness of the extrusion of the mounting seat 81 on the ear plate 82, so as to adjust the display angle of the control screen 9. The damping telescopic rod 11 and the shock absorbing spring 12 in the shock absorbing groove 10 can greatly reduce the impact of the vibration generated by the instrument body 1 during operation on the water tank 6, and prevent the vibration from driving the water in the water tank 6 to vibrate and affect the experimental data. Pulling out the shaft rod 14 and the glass cover 15 stored in the storage groove 13 can protect and cover the shock absorbing groove 10 and the water tank 6. This is the working principle of the constant temperature asphalt elongation meter.

Claims

1. A constant temperature asphalt elongation instrument, comprising an instrument body (1) and a motor (2) installed inside the instrument body (1), characterized in that: The output end of the motor (2) is fixedly connected to a screw rod (3), the outer cylindrical surface of the screw rod (3) is threadedly connected to a nut seat (4), the upper surface of the nut seat (4) is fixedly connected to a test slide plate (5), the upper surface and interior of the instrument body (1) are provided with a water tank (6), the inner bottom of the water tank (6) is fixedly connected to a test fixing plate (7), the upper surface of the test slide plate (5) is provided with an angle adjustment mechanism (8), and a control panel (9) is provided above the angle adjustment mechanism (8).

2. A constant temperature asphalt elongation tester according to claim 1, characterized in that: The angle adjustment mechanism (8) comprises a mounting seat (81) fixedly connected to the upper surface of the test slide (5); the lower surface of the control panel (9) is fixedly connected to an ear plate (82); the left outer surface of the mounting seat (81) extends to the right outer surface and penetrates the ear plate (82) to be provided with a fixing bolt (83); the left end of the fixing bolt (83) is a knob-type design, and the right end is a nut-type design.

3. A constant temperature asphalt elongation tester according to claim 1, characterized in that: A shock absorbing groove (10) is provided on the upper surface of the instrument body (1), and the water tank (6) is located inside the shock absorbing groove (10).

4. A constant temperature asphalt elongation tester according to claim 3, characterized in that: A plurality of damping telescopic rods (11) are fixedly connected to the inner bottom of the damping groove (10), and a damping spring (12) is arranged outside the damping telescopic rod (11).

5. The constant temperature asphalt elongation tester according to claim 1, characterized in that: A storage groove (13) is provided on the upper surface of the instrument body (1) at the front side of the shock-absorbing groove (10), and a shaft (14) is slidably connected inside the storage groove (13).

6. A constant temperature asphalt elongation tester according to claim 5, characterized in that: The outer circumferential surface of the rotating shaft of the shaft rod (14) is fixedly connected to a glass cover (15), and the upper surface of the glass cover (15) is fixedly connected to an anti-drop handle (16).

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