Asphalt concrete elasticity modulus measuring device

Abstract

The utility model discloses an asphalt concrete elasticity modulus measuring device which comprises a sliding rail, a sliding block is connected to the sliding rail in a clamped mode, moving plates are arranged on the inner side of the sliding block, the side faces of the moving plates are connected with clamping blocks through connecting blocks, and the two moving plates are connected through a connecting mechanism. The connecting mechanism comprises a first connecting arm hinged to the moving plate, a second connecting arm is hinged to the end of the first connecting arm, a motor is connected to the middle of the second connecting arm, a fixing block is arranged on the outer side of the sliding block, and the top of the fixing block is connected with a lifting block through an electric push rod. And a clamping mechanism is also arranged on the inner side of the lifting block. The concrete sample clamping device is scientific and reasonable in structural design, the first connecting arm is driven by the second connecting arm to rotate under the driving of the motor, so that the two moving plates are close to each other, the two clamping blocks on the inner side are close to each other to clamp and fix a concrete sample, and the operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt concrete measuring equipment, in particular to an asphalt concrete elastic modulus measuring device. Background Technique

[0002] The asphalt concrete elastic modulus measuring device is also called an elastic modulus measuring instrument. The concrete elastic modulus measuring instrument is mainly used to measure the static compressive elastic modulus of concrete prism or cylinder specimens. This measuring instrument consists of an upper ring, a lower ring, a contact rod, a dial gauge and a set screw. Before the test starts, place the elastic modulus measuring instrument on a flat surface, unscrew the test block set screw, install the dial gauge, loosen the fixed plate set screw, and remove the fixed plate, then the measuring instrument is positioned on the test block. Place the measuring instrument together with the test block on the lower platen of the compression testing machine, align the center of the test block with the center of the lower platen of the press, and zero the dial gauge.

[0003] The publication number CN 218956260 U proposes an asphalt concrete elastic modulus measuring device, including a base. The middle part of the top of the base is fixedly connected with a lower collar. Four threaded hole grooves are evenly opened in the threaded hole grooves of the lower collar. Four screws are movably connected in the threaded hole grooves of the lower collar. One end of a dial gauge contact frame is movably connected to both sides of the top of the lower collar. The other end of the dial gauge contact frame is movably connected to an upper collar. Four threaded hole grooves are evenly opened in the threaded hole grooves of the upper collar. Four screws are movably connected in the threaded hole grooves of the upper collar. Two first fixing plates are fixedly connected to both sides of the top of the base. Through the above mechanism, the clamping effect on the specimen is ensured to improve the accuracy in the measurement process. During use, the fixing of the specimen and the height adjustment of the device both need to be adjusted by manually rotating the handle, the operation is relatively cumbersome, the positioning and disassembly of the specimen both require a lot of time, and the operation efficiency is low. For this reason, we propose an asphalt concrete elastic modulus measuring device. Content of the Utility Model

[0004] The purpose of the utility model is to provide an asphalt concrete elastic modulus measuring device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An asphalt concrete elastic modulus measuring device, including a slide rail, a slider is clamped on the slide rail, a moving plate is arranged inside the slider, the side of the moving plate is connected with a clamping block through a connecting block, the two moving plates are connected through a connecting mechanism, the connecting mechanism includes a first connecting arm hinged to the moving plate, the end of the first connecting arm is hinged to a second connecting arm, a motor is connected to the middle of the second connecting arm, a fixed block is arranged outside the slider, the top of the fixed block is connected with a lifting block through an electric push rod, and a clamping mechanism is also arranged inside the lifting block.

[0006] In the above solution, a support base is provided at the end of the slide rail, and a support column is provided at the bottom of the support base.

[0007] In the above solution, a connection port is provided on the side of the connection block, and the connection block is connected to the moving plate by bolts.

[0008] In the above solution, the motor is installed on the bracket.

[0009] In the above solution, an arc-shaped opening is provided on the side of the clamping block.

[0010] In the above solution, the clamping mechanism includes a mounting block provided inside the lifting block, and the clamping block is connected to the side of the mounting block through a connection block.

[0011] In the above solution, four electric push rods are provided, and the top ends of the electric push rods are fixedly connected to the lifting block through connecting pieces.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: This asphalt concrete elastic modulus measuring device has a simple and reasonable structural design and strong practicability. Through the linkage mechanism composed of a first connecting arm, a second connecting arm, a bracket, a motor, etc., the first connecting arm is driven to rotate by the second connecting arm under the drive of the motor, so that the two moving plates approach each other, and thus the two inner clamping blocks approach each other to clamp and fix the concrete specimen. The operation is convenient and fast, and the practicability is strong. It can meet the positioning requirements of specimens of different sizes. And through the cooperation of structures such as a fixed block, an electric push rod, and a lifting block, the height of the lifting block can be adjusted to meet the clamping and positioning requirements of specimens of different heights, which is beneficial to firmly fixing the asphalt concrete specimen and making the measured data more accurate. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the connection structure of the clamping block of the present utility model.

[0015] Figure 3 It is a schematic side view structure diagram of the present utility model.

[0016] In the figure: 1. Slide rail; 11. Support base; 12. Support column; 13. Slide block; 14. Moving plate; 15. Connection block; 16. Clamping block; 17. First connecting arm; 18. Second connecting arm; 19. Bracket; 2. Motor; 21. Fixed block; 22. Electric push rod; 23. Lifting block. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-3 , the present invention provides a technical solution: an apparatus for measuring the elastic modulus of asphalt concrete, including a slide rail 1, on which a slider 13 is clamped. Inside the slider 13, there is a moving plate 14. The side of the moving plate 14 is connected to a clamping block 16 through a connecting block 15. The two moving plates 14 are connected through a connecting mechanism. The connecting mechanism includes a first connecting arm 17 hinged to the moving plate 14. The end of the first connecting arm 17 is hinged to a second connecting arm 18. The middle of the second connecting arm 18 is connected to a motor 2. Outside the slider 13, there is a fixed block 21. The top of the fixed block 21 is connected to a lifting block 23 through an electric push rod 22. Inside the lifting block 23, there is also a clamping mechanism.

[0019] By setting up a linkage mechanism composed of a first connecting arm 17, a second connecting arm 18, a bracket 19, and a motor 2, under the drive of the motor 2, the first connecting arm 17 is driven to rotate by the second connecting arm 18, so that the two moving plates 14 on both sides approach each other, thereby making the two clamping blocks 16 on the inner side approach each other to clamp and fix the concrete specimen. The operation is convenient and fast, and the practicability is strong. It can meet the positioning requirements of specimens of different sizes, further expanding the use effect of the device.

[0020] In the above solution, a support seat 11 is provided at the end of the slide rail 1, and a support column 12 is provided at the bottom of the support seat 11. The device is fixedly supported by the support column 12 and the support seat 11.

[0021] In the above solution, a connection port is provided on the side of the connecting block 15, and the connecting block 15 is connected to the moving plate 14 through bolts. The detachable connection method is adopted, which is convenient for the installation and disassembly of the clamping mechanism, and at the same time achieves the effect of being replaceable, reducing the use cost.

[0022] In the above solution, the motor 2 is installed on the bracket 19. Specifically, the motor 2 is a forward and reverse motor, and it is connected to the power supply and the switch through wires. Under the drive of the motor 2, the first connecting arm 17 is driven to rotate by the second connecting arm 18, so that the two moving plates 14 on both sides approach each other, thereby making the two clamping blocks 16 on the inner side approach each other to clamp and fix the concrete specimen.

[0023] In the above solution, an arc-shaped opening is provided on the side of the clamping block 16. Through the arc-shaped opening of the clamping block 16, the clamping and positioning requirements of specimens of different sizes can be met.

[0024] In the above solution, the clamping mechanism includes a mounting block arranged inside the lifting block 23, and the side of the mounting block is connected to the clamping block 16 through a connecting block 15.

[0025] In the above solution, four electric push rods 22 are provided, and the top ends of the electric push rods 22 are fixedly connected to the lifting block 23 through connecting parts. By setting the cooperation of structures such as the fixed block 21, the electric push rod 22, and the lifting block 23, the height of the lifting block 23 can be adjusted to meet the clamping and positioning requirements of specimens of different heights, which is beneficial to firmly fixing the asphalt concrete specimens and making the measured data more accurate.

[0026] Working principle:

[0027] For this asphalt concrete elastic modulus measuring device, driven by the motor 2, the first connecting arm 17 is driven to rotate by the second connecting arm 18, so that the moving plates 14 on both sides approach each other, thereby making the two clamping blocks 16 on the inner side approach each other to clamp and fix the concrete specimen. The detachable connection method is adopted, which is convenient for the installation and disassembly of the clamping mechanism, and at the same time achieves the replaceable effect, reducing the use cost. By setting the cooperation of structures such as the fixed block 21, the electric push rod 22, and the lifting block 23, the height of the lifting block 23 can be adjusted to meet the clamping and positioning requirements of specimens of different heights, which is beneficial to firmly fixing the asphalt concrete specimens and making the measured data more accurate.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for measuring the elastic modulus of asphalt concrete, comprising a slide rail (1), characterized in that: A slider (13) is snap-connected to the slide rail (1). A moving plate (14) is arranged inside the slider (13). The side surface of the moving plate (14) is connected to a clamping block (16) through a connecting block (15). The two moving plates (14) are connected through a connecting mechanism. The connecting mechanism includes a first connecting arm (17) hinged to the moving plate (14). The end of the first connecting arm (17) is hinged to a second connecting arm (18). A motor (2) is connected to the middle of the second connecting arm (18). A fixed block (21) is arranged outside the slider (13). The top of the fixed block (21) is connected to a lifting block (23) through an electric push rod (22). A clamping mechanism is also arranged inside the lifting block (23).

2. The asphalt concrete elastic modulus measuring device according to claim 1, characterized in that: A support seat (11) is arranged at the end of the slide rail (1). A support column (12) is arranged at the bottom of the support seat (11).

3. The device for measuring the elastic modulus of asphalt concrete according to claim 1, wherein: A connection port is formed on the side surface of the connecting block (15), and the connecting block (15) is connected to the moving plate (14) through a bolt.

4. An asphalt concrete elastic modulus measuring device according to claim 1, characterized in that: The motor (2) is installed on a bracket (19).

5. The asphalt concrete elastic modulus measuring device according to claim 1, wherein: An arc-shaped opening is formed on the side surface of the clamping block (16).

6. The asphalt concrete elastic modulus measuring device according to claim 1, characterized in that: The clamping mechanism includes a mounting block arranged inside the lifting block (23), and the side surface of the mounting block is connected to the clamping block (16) through a connecting block (15).

7. The asphalt concrete elastic modulus measuring device according to claim 1, wherein: Four electric push rods (22) are provided, and the top ends of the electric push rods (22) are fixedly connected to the lifting block (23) through connecting pieces.

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