An automatic precast concrete crack testing device with heating function

Abstract

The present invention discloses an automatic precast concrete crack test device with heating function, comprising a base, a side plate and a blade component, wherein the side plate is detachably placed above the base, and a circular hole and a circular cover plate are provided on the base; the blade component is installed on the circular hole, and is composed of a blade, a circular ring and a crossbar, and the blade is installed on the crossbar, and the crossbar is located in the middle of the circular ring, and there is a rotating device under the crossbar, and there are two motors at both ends of the crossbar; the blade is composed of a flexible carbon fiber cloth and an insulating layer, and the blade can be heated to different temperatures by passing different currents through the blade. The automatic precast concrete crack test device with heating function, through the setting of the rotating device and the motor, enables the blade to have any angle and inclination, and the blade can be heated to different temperatures, and the influence of temperature stress on concrete cracks can be studied. The size and thickness of the blade are provided with a variety of specifications, so that the size of the cast crack can be adjusted according to demand to meet different test requirements.

Description

Technical Field

[0001] The invention relates to the technical field of concrete testing, in particular to an automatic prefabricated concrete crack testing device with a heating function. Background Art

[0002] When cracks appear in concrete materials, they need to be sealed with waterproof materials. In order to study the waterproof performance of various waterproof materials after filling, it is necessary to make concrete test blocks with prefabricated cracks. However, in the process of making prefabricated cracks in concrete test blocks, it is difficult to control the crack position and crack size, and in many prefabricated crack experiments, the influence of crack direction and size needs to be considered. In addition, temperature stress is also an important factor causing cracking of concrete materials. In order to study the influence of different temperatures on cracking of concrete materials, it is necessary to provide an automatic prefabricated concrete crack test device with heating function. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic precast concrete crack testing device with a heating function, so that the size, angle and inclination of the precast crack can be adjusted, and the influence of different temperatures on the cracking of concrete materials can be studied.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0005] An automatic precast concrete crack testing device with a heating function comprises a base, a side plate and a blade member, wherein the side plate is detachably placed above the base, and a circular hole and a circular cover plate matched with the circular hole are arranged in the base;

[0006] The circular cover plate is installed on the circular hole;

[0007] The blade component comprises a blade, a crossbar, an upper ring, a lower ring, a left small wheel, a right small wheel, a rotating device, and a left motor, a right motor;

[0008] Wherein, the blade is mounted on a crossbar;

[0009] The crossbar is sandwiched between the upper and lower rings;

[0010] The upper and lower rings are mounted on the circular holes of the base;

[0011] The left and right small wheels are installed on both sides of the crossbar;

[0012] The rotating device is installed at the lower part of the crossbar;

[0013] The left and right motors are installed at two ends of the cross bar.

[0014] Furthermore, the base is a hollow cuboid, the circular hole is located at the top of the cuboid, and the left and right small wheels and the left and right motors are placed inside the cuboid;

[0015] Furthermore, the rotating device and the left and right motors can be controlled by a computer. The rotating device and the left and right motors are connected to the computer through wires, and then after the desired angle and inclination are set on the computer, the blade can be rotated to the desired position;

[0016] Furthermore, the crossbar has grooves with springs on both sides, so that blades of different sizes can be installed on the crossbar; wires can be placed inside the crossbar, and the wires of the left and right motors can be connected to the computer through the inside of the crossbar;

[0017] Furthermore, the circular cover plate has an opening, and when the blade is rotated to a suitable position, the blade can be passed through and installed on the circular hole;

[0018] Furthermore, the blade is composed of a flexible carbon fiber cloth and an insulating layer, and the blade can be heated to different temperatures by passing currents of different magnitudes through the blade;

[0019] Furthermore, the left and right motors are installed at both ends of the crossbar, and the motors can drive the crossbar to rotate. The rotation of the crossbar can change the inclination angle of the blade. Spherical small wheels are installed at the bottom of the left and right motors. When the rotating device drives the crossbar to rotate, the left and right motors can rotate together;

[0020] Furthermore, there are steel balls in the middle of the left and right small wheels, which are similar to bearing structures. When the left and right motors drive the crossbar to rotate, the left and right small wheels will not rotate;

[0021] Furthermore, the connection part between the rotating device and the cross bar is a concave steel pipe. When the left and right motors drive the cross bar to rotate, the rotating device will not rotate; the wire of the rotating device is connected to its bottom and connected to the computer through the bottom of the test device.

[0022] Compared with the existing technology, the principle and advantages of this solution are as follows:

[0023] 1. There are grooves with springs on both sides of the crossbar, which can allow blades of different sizes to be installed on the crossbar to meet the requirements of different tests for crack size;

[0024] 2. A rotating device is installed under the crossbar, which can rotate the blade to different angles to meet the requirements of different tests for crack angles;

[0025] 3. Motors are installed at both ends of the crossbar to rotate the blade to different inclination angles to meet the requirements of different tests for crack inclination angles;

[0026] 4. The blade is made of flexible carbon fiber cloth and an insulating layer. By passing different currents through the blade, the blade can be heated to different temperatures to meet the temperature requirements of different tests.

[0027] 5. There are steel balls in the middle of the small wheels on both sides of the crossbar, which is similar to the bearing structure. The crossbar and the small wheels can rotate independently without affecting each other;

[0028] 6. The side panels are all tempered glass baffles, which are convenient for test personnel to observe the internal conditions of the test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the services required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure inside the base of an automatic precast concrete crack testing device with heating function according to the present invention;

[0031] Figure 2 It is a structural schematic diagram of an automatic precast concrete crack testing device with heating function according to the present invention;

[0032] Figure 3 It is a schematic diagram of the internal structure of a crossbar of an automatic precast concrete crack testing device with a heating function according to the present invention;

[0033] Figure 4 A schematic diagram of blade component splicing of an automatic precast concrete crack testing device with heating function according to the present invention;

[0034] Reference numerals:

[0035] 1-base, 2-side plate, 3-blade member, 4-circular hole, 5-circular cover, 6-blade, 7-cross bar, 8-upper ring, 9-lower ring, 10-left small wheel, 11-right small wheel, 12-rotating device, 13-left motor, 14-right motor DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with specific embodiments:

[0037] like Figure 1-4 As shown, an automatic precast concrete crack testing device with heating function includes a base 1, a side plate 2 and a blade component 3.

[0038] Among them, the side panel 2 can be removably placed above the base 1; on the upper surface of the base 1, there are a circular hole 4 and a circular cover 5 equipped with the circular hole 4; the left and right small wheels 10, 11 and the left and right motors 13, 14 are all located inside the base 1; the upper and lower rings 8, 9 are installed at the circular hole 4; the cross bar 7 is clamped between the upper and lower rings 8, 9; the blade 6 is installed on the cross bar 7; the rotating device 12 is installed under the cross bar 7; the circular cover 5 passes through the blade 6 and is installed on the circular hole 4.

[0039] Specifically, there are two springs and two baffles inside the cross bar 7, and blades 6 of different sizes can be installed on the cross bar 7 by compressing the springs; the left and right motors 13, 14 are installed at both ends of the cross bar 7, and the left and right small wheels 10, 11 are installed on both sides of the cross bar 7, close to the upper and lower rings 8, 9; the left and right small wheels 10, 11 have steel balls in the middle, similar to the bearing structure, and the cross bar 7 and the left and right small wheels 10, 11 can rotate independently; the connecting part of the rotating device 12 and the cross bar 7 is a concave steel pipe, and the rotation of the cross bar 7 will not cause the rotation of the rotating device 12; the wires of the left and right motors 13, 14 pass through the inside of the cross bar 7 and are connected to the external computer through the bottom of the test device; the wires of the rotating device 12 are connected to the external computer through the bottom of the test device.

[0040] The specific working principle is as follows:

[0041] When it is necessary to pour concrete with prefabricated cracks, first select a blade 6 of appropriate size, open the circular cover plate 5, install the blade 6 on the crossbar 7, and rotate the blade 6 to a suitable angle and inclination through computer-controlled rotating device 12 and left and right motors 13 and 14. When it is necessary to study the influence of temperature on concrete cracks, it is necessary to heat the blade 6 to a suitable temperature through computer settings. After the position and temperature of the blade 6 are adjusted, the circular cover plate 5 can be covered and then poured. In actual operation, in order to facilitate the removal of the blade 6, a layer of oil is often brushed on the surface of the blade 6 for lubrication before pouring.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention, but does not limit the scope of implementation of the present invention. Therefore, all changes made according to the shape and principle of the present invention should fall within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

[0043] In the description of the present invention, it is necessary to understand that the terms "up", "down", "left", "right", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

Claims

1. An automatic precast concrete crack testing device with heating function, characterized in that: The invention comprises a base (1), a side plate (2) and a blade component (3), wherein the side plate (2) is detachably placed on the base (1), and a circular hole (4) and a circular cover plate (5) arranged with the circular hole (4) are arranged in the base (1); the circular cover plate (5) is mounted on the circular hole (4); the blade component (3) comprises a blade (6), a crossbar (7), an upper circular ring (8), a lower circular ring (9), a left small wheel (10), a right small wheel (11), a rotating device (12), and a left motor (13) and a right motor (14); wherein the blade (6) is mounted on the crossbar (7). The cross bar (7) is sandwiched between the upper circular ring (8) and the lower circular ring (9); the upper circular ring (8) and the lower circular ring (9) are mounted on the circular hole (4) of the base (1); the left small wheel (10) and the right small wheel (11) are mounted on both sides of the cross bar (7); the rotating device (12) is mounted on the lower part of the cross bar (7); the left motor (13) and the right motor (14) are mounted on both ends of the cross bar (7); the base (1) is a hollow rectangular parallelepiped, the circular hole (4) is located at the top of the rectangular parallelepiped, the left small wheel (10), the right small wheel (11) and the left motor (13) and the right motor (14) are mounted on the upper and lower ends of the cross bar (7); the base (1) is a hollow rectangular parallelepiped, the circular hole (4) is located at the top of the rectangular parallelepiped, the left small wheel (10), the right small wheel (11) and the left motor (13) and the right motor (14) are mounted on the lower part of the cross bar (7); the left small wheel (10), the right small wheel (11) and the left motor (13) and the right motor (14) are mounted on the upper and lower ends of the cross bar (7); the left small wheel (10), the right small wheel (11) and the left motor (13) and the right motor (14) are mounted on the lower part ... The motors (14) are placed inside the rectangular parallelepiped; the crossbar (7) has grooves with springs on both sides, so that blades (6) of different sizes can be installed on the crossbar (7); wires are placed inside the crossbar (7), and the wires of the left motor (13) and the right motor (14) are connected to the computer through the crossbar; the circular cover (5) has an opening, and when the blade (6) is rotated to a suitable position, it passes through the blade (6) and is installed on the circular hole (4); the blade (6) is composed of a flexible carbon fiber cloth and an insulating layer, and the blade can be heated to different temperatures by passing currents of different sizes through the blade; the left electric The left motor (13) and the right motor (14) are installed at two ends of the cross bar (7). The motor can drive the cross bar (7) to rotate. The rotation of the cross bar (7) can change the inclination angle of the blade (6). The bottoms of the left motor (13) and the right motor (14) are equipped with spherical small wheels. When the rotating device (12) drives the cross bar (7) to rotate, the left motor (13) and the right motor (14) rotate together. The left small wheel (10) and the right small wheel (11) are provided with steel balls in the middle. When the left motor (13) and the right motor (14) drive the cross bar (7) to rotate, the left small wheel (10) and the right small wheel (11) will not rotate.

2. The automatic precast concrete crack testing device with heating function according to claim 1 is characterized in that: The rotating device (12), the left motor (13) and the right motor (14) can all be controlled by a computer. The rotating device (12), the left motor (13) and the right motor (14) are connected to the computer via wires. After the desired angle and inclination are set on the computer, the blade can be rotated to a desired position.

3. The automatic precast concrete crack testing device with heating function according to claim 1 is characterized in that: The connection part between the rotating device (12) and the cross bar (7) is a concave steel pipe. When the left motor (13) and the right motor (14) drive the cross bar (7) to rotate, the rotating device (12) will not rotate. The wire of the rotating device (12) is connected to its bottom and connected to the computer through the bottom of the test device.

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