Alkali aggregate constant-temperature automatic testing device

Abstract

The utility model discloses an alkali aggregate constant-temperature automatic testing device, which belongs to the technical field of alkali aggregate testing and comprises a constant-temperature box body, a protective cover is mounted at the upper end of the constant-temperature box body, a partition plate is fixed in the constant-temperature box body, a containing block is arranged on the partition plate, and the containing block is connected with the protective cover. A containing block is arranged in the constant-temperature box body, a placing groove where a test block is inserted is formed in the containing block, a lifting component is arranged below the containing block, a laser range finder is arranged above the containing block and installed on a protective cover, and a limiting structure is installed on the side edge of the containing block and used for improving the stability of the containing block placed in the constant-temperature box body. According to the constant-temperature automatic testing device for the alkali aggregate, the lifting device is arranged in the box, after the alkali aggregate stands and is heated, the alkali aggregate is jacked up through the lifting device, and the laser range finder is directly used for measuring, so that a test block does not need to be taken out from the box.

Description

TECHNICAL FIELD

[0001] The utility model relates to alkali aggregate testing technical field, concretely is a kind of alkali aggregate constant temperature automatic testing device. BACKGROUND

[0002] Alkali aggregate reaction is a long-term durability problem in concrete, which refers to the chemical reaction between alkaline substances in concrete and active ingredients in aggregate, resulting in internal self-expanding stress of concrete, and then causing cracking and damage. In order to effectively evaluate and control the influence of alkali aggregate reaction on concrete engineering, alkali aggregate constant temperature automatic testing device emerges as the times require, which simulates the alkali aggregate reaction process of concrete under specific temperature conditions to realize automatic testing and evaluation of the expansion performance of sandstone aggregate.

[0003] The existing testing device has the following technical problems: when testing alkali aggregate, the existing testing device usually places the test block directly in the box, adds alkali solution in the box, and then heats it. After the test block is placed and heated, it is taken out of the box for testing, but the test block is easily cooled when taken out of the box, resulting in inaccurate test results.

[0004] Therefore, we propose an alkali aggregate constant temperature automatic testing device to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an alkali aggregate constant temperature automatic testing device to solve the problem that the existing testing device on the market usually places the test block directly in the box, adds alkali solution in the box, and then heats it. After the test block is placed and heated, it is taken out of the box for testing, but the test block is easily cooled when taken out of the box, resulting in inaccurate test results.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an alkali aggregate constant temperature automatic testing device, comprising a constant temperature box body, a protective cover is installed on the upper end of the constant temperature box body, and a partition is fixed inside the constant temperature box body, a containing block is provided on the partition, a placing groove for inserting test block is formed in the inside of the containing block, a lifting component is provided below the containing block, and a laser range finder is provided above the containing block, the laser range finder is installed on the protective cover, a limiting structure is installed on the side of the containing block to improve the stability of the containing block placed inside the constant temperature box body.

[0007] Preferably, a plurality of containing blocks are uniformly distributed inside the constant temperature box body, and a laser range finder is provided above each containing block.

[0008] By using the above technical scheme, the test block inside the containing block can be conveniently expanded and detected by the laser range finder above the containing block.

[0009] Preferably, the lifting component comprises an electric telescopic rod, a resisting block, a pressure block, a moving plate, a jacking rod and an auxiliary spring, the electric telescopic rod is installed on the side of the thermostat case, the telescopic end of the electric telescopic rod is fixed with the resisting block, the upper portion of the resisting block is provided with the pressure block, the lower end of the moving plate is fixed with the pressure block, the upper end of the moving plate is installed with the jacking rod, and the moving plate is connected with the thermostat case through the auxiliary spring.

[0010] By adopting the above technical scheme, the moving plate can be conveniently reset and rebound after moving in the thermostat case through the setting of the auxiliary spring.

[0011] Preferably, the contact surfaces of the resisting block and the pressure block are provided as bevels, and the pressure block and the moving plate are integrally formed.

[0012] By adopting the above technical scheme, the pressure block can be extruded and pushed by the bevel through the movement of the resisting block.

[0013] Preferably, the moving plate and the thermostat case are in sliding connection, and the jacking rod on the moving plate corresponds to the placing groove in the containing block one by one.

[0014] By adopting the above technical scheme, the jacking rod on the moving plate can be synchronously moved through the movement of the moving plate in the thermostat case.

[0015] Preferably, the limiting structure comprises a positioning column, an adjusting screw rod and a limiting pressure block, the positioning column is fixed on the side of the containing block, the adjusting screw rod is installed on the positioning column, and the limiting pressure block is fixed on the end of the adjusting screw rod away from the positioning column.

[0016] By adopting the above technical scheme, the inner wall of the thermostat case can be conveniently resisted through the limiting structure on the side of the containing block, so that the position of the containing block is fixed.

[0017] Preferably, the adjusting screw rod and the positioning column are in threaded connection, and the adjusting screw rod and the positioning column are symmetrically arranged about the transverse central axis of the containing block.

[0018] By adopting the above technical scheme, the pressure block at the end of the adjusting screw rod can be in contact with the thermostat case through the rotation of the adjusting screw rod on the positioning column.

[0019] Compared with the prior art, the alkali aggregate constant-temperature automatic testing device has the beneficial effects that: the lifting device is arranged in the box, after the alkali aggregate is placed and heated, the alkali aggregate is lifted by the lifting device and directly measured by the laser range finder, so that the test block does not need to be taken out from the box.

[0020] 1、Set up the top rod, can extrude the pressure block to the pressure block through the movement of the resistance block, make it drive the top rod to move up with the moving plate, use the up movement of the top rod to be able to lift the test block inside the placing groove, so as to use the laser range finder on the protective cover to test the expansion of the test block;

[0021] 2、Set up the pressure block, by adjusting the rotation of the lead screw on the positioning column, so that the limiting pressure block at the end of the adjusting lead screw can be in contact with the inner wall of the thermostat body, thereby using the limiting pressure block to fix the containing block and improve the stability of the containing block in the thermostat body. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the front perspective structure schematic view of the utility model;

[0023] Figure 2 It is the protective cover and laser range finder structure schematic view of the utility model;

[0024] Figure 3 It is the containing block and placing groove structure schematic view of the utility model;

[0025] Figure 4 It is the adjusting lead screw and pressure block structure schematic view of the utility model;

[0026] Figure 5 It is the moving plate and auxiliary spring structure schematic view of the utility model;

[0027] Figure 6 It is the utility model Figure 5 Enlarged structure schematic view of A place.

[0028] In the drawing: 1, thermostat body;2, protective cover;3, partition;4, containing block;5, placing groove;6, lifting component;601, electric telescopic rod;602, resistance block;603, pressure block;604, moving plate;605, top rod;606, auxiliary spring;7, laser range finder;8, limiting structure;801, positioning column;802, adjusting lead screw;803, limiting pressure block. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0030] Embodiment one: please refer to Figures 1-6The existing test device is usually directly placed in the box and heated after adding alkali solution in the box, and the test block is taken out from the box after being placed and heated, but the test block is easy to cool down when taken out from the box, which leads to inaccurate test results. In order to solve the technical problem, the embodiment discloses the following technical content, an alkali aggregate constant temperature automatic test device, comprising a constant temperature box body 1, a protective cover 2 is installed at the upper end of the constant temperature box body 1, and a partition plate 3 is fixed in the constant temperature box body 1, the partition plate 3 is provided with a containing block 4, and a placing groove 5 for inserting the test block is formed in the containing block 4, a lifting component 6 is arranged below the containing block 4, and a laser range finder 7 is arranged above the containing block 4, the laser range finder 7 is installed on the protective cover 2, a plurality of containing blocks 4 are uniformly distributed in the constant temperature box body 1, and the laser range finder 7 is arranged above each containing block 4, the lifting component 6 comprises an electric telescopic rod 601, a contact block 602, a pressure receiving block 603, a moving plate 604, a jacking rod 605 and an auxiliary spring 606, the electric telescopic rod 601 is installed at the side of the constant temperature box body 1, the telescopic end of the electric telescopic rod 601 is fixed with the contact block 602, the upper side of the contact block 602 is provided with the pressure receiving block 603, the lower end of the pressure receiving block 603 is fixed on the moving plate 604, the upper end of the moving plate 604 is installed with the jacking rod 605, and the moving plate 604 is connected with the constant temperature box body 1 through the auxiliary spring 606, the contact surfaces of the contact block 602 and the pressure receiving block 603 are arranged as bevel edges, the pressure receiving block 603 and the moving plate 604 are an integral structure, the moving plate 604 and the constant temperature box body 1 are in sliding connection, and the jacking rod 605 on the moving plate 604 corresponds to the placing groove 5 in the containing block 4.

[0031] When the alkali aggregate needs to be tested, the protective cover 2 is opened, the test block is placed in the placing groove 5 in the containing block 4, the electric telescopic rod 601 is started, the electric telescopic rod 601 can extrude the pressure receiving block 603 by the contact block 602 after being started, the pressure receiving block 603 can drive the moving plate 604 to move upward after being extruded, the test block in the placing groove 5 can be lifted upward by the jacking rod 605 through the movement of the moving plate 604, so that the height position of the test block in the initial state is detected by the laser range finder 7, then the electric telescopic rod 601 is retracted, the test block is reset and retracted into the placing groove 5, then the alkali solution is added into the constant temperature box body 1 and heated, after waiting for a period of time, the electric telescopic rod 601 is started again, the moving plate 604 and the jacking rod 605 are moved upward, the test block can be lifted upward through the movement of the jacking rod 605, so that the height of the test block is measured again by the laser range finder 7 on the protective cover 2, the expansion of the alkali aggregate is determined by the difference between the two data, and the test block is avoided from being taken out for testing.

[0032] In the embodiment, the side of the accommodating block 4 is provided with a limiting structure 8 for improving the stability of the accommodating block 4 placed in the thermostat body 1. The limiting structure 8 comprises a positioning column 801, an adjusting screw 802 and a limiting pressing block 803. The positioning column 801 is fixed on the side of the accommodating block 4. The adjusting screw 802 is arranged on the positioning column 801. The limiting pressing block 803 is fixed on the end of the adjusting screw 802 away from the positioning column 801. The adjusting screw 802 and the positioning column 801 are symmetrically arranged about the transverse central axis of the accommodating block 4.

[0033] When the accommodating block 4 is placed on the partition plate 3 in the thermostat body 1, the adjusting screw 802 on the side of the accommodating block 4 is rotated. The rotation of the adjusting screw 802 can make the limiting pressing block 803 at the end of the adjusting screw 802 move synchronously. Thus, the limiting pressing block 803 can be in contact with the inner wall of the thermostat body 1. Therefore, the stability of the accommodating block 4 in the thermostat body 1 can be ensured.

[0034] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, the skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace some of the technical features with the equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic constant-temperature testing device for alkali aggregate, comprising a constant-temperature chamber (1), a protective cover (2) installed on the upper end of the constant-temperature chamber (1), and a partition (3) fixed inside the constant-temperature chamber (1), wherein a receiving block (4) is provided on the partition (3), and a placement groove (5) for inserting test blocks is opened inside the receiving block (4), characterized in that: A lifting component (6) is provided below the receiving block (4), and a laser rangefinder (7) is provided above the receiving block (4). The laser rangefinder (7) is installed on the protective cover (2). A limiting structure (8) is installed on the side of the receiving block (4) to improve the stability of the receiving block (4) placed inside the constant temperature chamber (1).

2. The automatic constant-temperature testing device for alkali aggregate according to claim 1, characterized in that: The containment blocks (4) are evenly distributed inside the constant temperature chamber (1), and a laser rangefinder (7) is installed above each containment block (4).

3. The automatic constant-temperature testing device for alkali aggregate according to claim 1, characterized in that: The lifting component (6) includes an electric telescopic rod (601), a contact block (602), a pressure block (603), a moving plate (604), a top rod (605), and an auxiliary spring (606). The electric telescopic rod (601) is installed on the side of the constant temperature chamber (1). The telescopic end of the electric telescopic rod (601) is fixed with a contact block (602), and a pressure block (603) is provided above the contact block (602). The pressure block (603) is fixed at the lower end of the moving plate (604), and a top rod (605) is installed at the upper end of the moving plate (604). The moving plate (604) is connected to the constant temperature chamber (1) through the auxiliary spring (606).

4. The automatic constant-temperature testing device for alkali aggregate according to claim 3, characterized in that: The contact surfaces of the contact block (602) and the pressure block (603) are set as bevels, and the pressure block (603) and the moving plate (604) are integrally formed structures.

5. The automatic constant-temperature testing device for alkali aggregate according to claim 3, characterized in that: The movable plate (604) and the constant temperature chamber (1) are slidably connected, and the top rod (605) on the movable plate (604) corresponds one-to-one with the placement slot (5) inside the receiving block (4).

6. The automatic constant-temperature testing device for alkali aggregate according to claim 1, characterized in that: The limiting structure (8) includes a positioning post (801), an adjusting screw (802), and a limiting block (803). The positioning post (801) is fixed on the side of the receiving block (4). The adjusting screw (802) is installed on the positioning post (801), and the limiting block (803) is fixed at the end of the adjusting screw (802) away from the positioning post (801).

7. The automatic constant-temperature testing device for alkali aggregate according to claim 6, characterized in that: The adjusting screw (802) and the positioning pin (801) are threaded together, and the adjusting screw (802) and the positioning pin (801) are symmetrically arranged about the transverse central axis of the receiving block (4).

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