A single-point anchoring force test device and test method for fasteners for thermal insulation decorative panels

Abstract

The present invention provides a single-point anchoring force test device and test method for mounting fasteners of thermal insulation decorative panels, comprising a frame body, and a lower end connecting rod, a fixed base, an upper end connecting rod, a metal steel plate, two screws, a lifting platform and a pressure sensor located in the frame body. The test device of the present invention is simple and reliable to connect, can be operated multiple times, reduces the preparation and waste of cement products for testing, and is conducive to saving time and resources. Moreover, the test method of the test device has strong operability and convenience, and can accurately calculate the single-point anchoring force data of the thermal insulation decorative panel sample.

Description

Technical Field

[0001] The invention relates to a single-point anchoring force test, and in particular to a single-point anchoring force test device and a test method for a fastener for installing a thermal insulation decorative plate. Background Art

[0002] At present, there are endless materials for external wall insulation systems, including thin plastering system materials, inorganic light aggregate insulation mortar system materials, stone curtain wall dry hanging system materials, metal curtain wall dry hanging system materials, glass curtain wall dry hanging system materials, insulation and decoration integrated system materials, etc. Among them, the insulation and decoration integrated system materials are not only suitable for the external wall insulation and decoration of new buildings, but also for the energy saving and decoration renovation of old buildings. They are suitable for buildings in cold northern regions and hot southern regions, and have good energy-saving and insulation effects, so they are widely used. In response to this, the Ministry of Housing and Urban-Rural Development has successively launched the construction industry product recommendation standard for insulation and decoration integrated products "Insulation and Decoration Board External Wall Insulation System Materials" JG / T 287-2013, and the construction industry construction application recommended technical standard "Insulation and Fireproof Composite Board Application Technical Regulations" JGJ / T 350-2015, to guide and standardize the production and application of insulation and decoration integrated products.

[0003] According to the existing standard "Insulation Decorative Panel External Wall External Insulation System Materials" JG / T 287-2013, the test method for the single-point anchoring force of anchors is relatively broad, and product manufacturers cannot effectively guide the test of their performance indicators based on this standard. In addition, most of the test methods use materials and processes that are labor-intensive, time-consuming, and troublesome. Therefore, how to achieve a simple and effective test of the single-point anchoring force of integrated insulation and decoration products is an urgent problem to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide a single-point anchoring force test device and test method for installing fasteners of thermal insulation decorative panels in view of the deficiencies in the prior art.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A single-point anchoring force test device for mounting fasteners of thermal insulation decorative panels, comprising a frame body, and a lower connecting rod, a fixed base, an upper connecting rod, a metal steel plate, two screws, a lifting platform and a pressure sensor located inside the frame body; screws are vertically installed on both sides of the frame body; a threaded hole is drilled on each side of the lifting platform, and the threaded hole cooperates with the screw thread; the lower connecting rod penetrates the central axis of the lifting platform and the fixed base in sequence from bottom to top, the top end is fixed with a nut, the bottom end is fixedly connected to a gasket, and the pressure sensor is fixed on the gasket; two L-shaped fixings for connecting the mounting fasteners are symmetrically installed on both sides of the fixed base; the top end of the upper connecting rod is fixed to the top of the frame body, and the bottom end is fixedly connected to the center of the metal steel plate, and the bottom surface of the metal steel plate has an adhesive layer.

[0007] Furthermore, the L-shaped fixing piece is 85 mm away from the center point of the fixed base, and the metal steel plate has a size of 150 mm×150 mm and a thickness of not less than 4 mm.

[0008] A test method for a single-point anchoring force test device for installing fasteners of a thermal insulation decorative panel comprises the following steps:

[0009] Step 1: Cut the thermal insulation decorative plate into the same size as the metal steel plate;

[0010] Step 2: Connect the installation fastener to the cut base plate of the thermal insulation decorative panel, place it between two L-shaped fixings, and fix the L-shaped fixings to the installation fastener; the bottom surface of the thermal insulation decorative panel has no connection with the fixed base; the top surface of the base plate of the thermal insulation decorative panel is connected to the metal steel plate through an adhesive layer; the center point of the thermal insulation decorative panel and the upper connecting rod are located on the same vertical line.

[0011] Step 3: At the beginning of the test, the screw is rotated to make the lifting platform move downward at a constant rate of 5mm / min. The upper connecting rod remains stationary, and the lower connecting rod, under the action of the lifting platform, pulls down the insulation decorative board until the base plate of the insulation decorative board is destroyed. The destructive force value is obtained through the pressure sensor. The calculation method of the single-point anchoring force of the insulation decorative board installation fastener is as follows:

[0012]

[0013] Where: F—single point anchoring force (kN);

[0014] f—destructive force value (N);

[0015] Furthermore, in the step 2, the method of connecting the cut thermal insulation decorative panel with the installation fasteners includes side grooving and mechanical anchoring.

[0016] Furthermore, a plurality of thermal insulation decorative panels may be tested to calculate an average value of the destructive force of the fasteners for installing the thermal insulation decorative panels.

[0017] The beneficial effects of the present invention are:

[0018] The single-point anchoring force test device for the installation fastener of the thermal insulation decorative panel of the present invention is simple and reliable to connect, can be operated multiple times, reduces the preparation and waste of cement products for testing, and is conducive to saving time and resources. At the same time, the test method of the single-point anchoring force test device for the installation fastener of the thermal insulation decorative panel of the present invention has strong operability and convenience, and can accurately calculate the single-point anchoring force data of the installation fastener of the thermal insulation decorative panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a single-point anchoring force test device for fasteners installed on thermal insulation decorative panels;

[0020] Figure 2 A schematic diagram of the partial structure of a single-point anchoring force test device for installing fasteners for thermal insulation decorative panels;

[0021] Figure 3 A top view of a single-point anchoring force test device for fasteners installed on thermal insulation decorative panels;

[0022] Figure 4 A schematic diagram of the connection between the cut insulation decorative panels and the installation fasteners for the single-point anchoring force test device of the insulation decorative panels;

[0023] In the figure, 1 is a lower connecting rod, 2 is a through screw and a nut, 3 is a fixed base, 4 is an L-shaped fixing part, 5 is a mounting fastener, 6 is an upper connecting rod, 7 is a metal steel plate, 8 is an adhesive layer, 9 is a base plate, 10 is an insulation layer, 11 is a fixing screw, 12 is a connecting nut, 13 is a data reading line, 14 is a frame body, 15 is a screw, 16 is a lifting platform, and 17 is a pressure sensor. DETAILED DESCRIPTION

[0024] When installing the thermal insulation decorative board, the thermal insulation layer and the base wall are usually bonded with bonding mortar, and the thermal insulation decorative board substrate is connected with the installation fastener so that the thermal insulation decorative board and the wall can be fixed in a double effect. The installation fastener 5 is connected with the thermal insulation decorative board substrate 9 as shown in FIG. Figure 4 As shown in . The connection of the installation fastener 5 can ensure to a limited extent that the thermal insulation decorative panel and the base wall will not loosen when initially bonded, which is beneficial to the stable solidification of the bonding mortar, so that the thermal insulation decorative panel is firmly installed; and when the base wall and the bonding mortar or the bonding mortar and the thermal insulation decorative panel are detached, there is still an effective connection between the installation fastener 5 between the base wall and the thermal insulation decorative panel, so that the thermal insulation decorative panel is not easy to fall off, thereby ensuring safety. Therefore, the single-point anchoring force between the installation fastener and the substrate in the thermal insulation decorative panel is one of the important indicators for measuring the stability and safety of the entire thermal insulation decorative panel dry-hanging system. The present invention provides a single-point anchoring force test device for thermal insulation decorative panel installation fasteners, such as Figure 1 , 2As shown in and 3, it includes a frame body 14, and a lower connecting rod 1, a fixed base 3, an upper connecting rod 6, a metal steel plate 7, two screws 15, a lifting platform 16 and a pressure sensor 17 located inside the frame body 14; screws 15 are vertically installed on both sides of the frame body 14; a threaded hole is drilled on each side of the lifting platform 16, and the threaded hole is threadedly matched with the screw 15; the lower connecting rod 1 penetrates the central axis of the lifting platform 16 and the fixed base 3 from bottom to top, the top end is fixed with a nut, and the bottom end is fixedly connected to a gasket, and the pressure sensor 17 is fixed on the gasket; two L-shaped fixing parts 4 for connecting the mounting fasteners 5 are symmetrically installed on both sides of the fixed base 3; the top end of the upper connecting rod 6 is fixed to the top of the frame body 14, and the bottom end is fixedly connected to the center of the metal steel plate 7, and the bottom surface of the metal steel plate 7 has an adhesive layer 8. The device pulls down the screw rod 15 and drives the fixed base 3 to pull down at the same time, thereby applying a pulling force to the sample. The pulling force is measured by the lifting platform 16 pressing down the pressure sensor 17, and the pulling force value is the anchoring force.

[0025] As a preferred solution, the L-shaped fixing piece 4 is 85 mm away from the center point of the fixed base 3, and the metal steel plate 7 has a size of 150 mm×150 mm and a thickness of not less than 4 mm.

[0026] When using a new single-point anchoring force test device to test the anchoring force of a specimen, the following steps are included:

[0027] Step 1: Cut the insulation decorative plate into the same size as the metal steel plate 7;

[0028] Step 2: Connect the installation fastener 5 to the cut base plate 9 of the thermal insulation decorative panel, place it between the two L-shaped fixing parts 4, and fix the L-shaped fixing parts 4 to the installation fastener 5; the bottom surface of the thermal insulation decorative panel has no connection with the fixed base 3; the top surface of the base plate 9 of the thermal insulation decorative panel is connected to the metal steel plate 7 through the adhesive layer 8; the center point of the thermal insulation decorative panel and the upper connecting rod 6 are located on the same vertical line.

[0029] Step 3: At the start of the test, the screw 15 is rotated to make the lifting platform 16 move downward at a constant rate of 5 mm / min. The upper connecting rod 6 remains stationary. The lower connecting rod 1, under the action of the lifting platform 16, pulls down the thermal insulation decorative board until the substrate 9 of the thermal insulation decorative board is destroyed. The destructive force value is obtained through the pressure sensor 17.

[0030] The calculation method of single-point anchoring force is as follows, with a test accuracy of 1N:

[0031]

[0032] Where: F—single point anchoring force (kN);

[0033] f—destructive force value of the specimen (N);

[0034] Among them, Figure 4 As shown, in step 2, the method of anchoring the cut thermal insulation decorative board sample includes side grooving and mechanical anchoring. The method of mechanical anchoring is specifically disclosed in patent CN201220129442.2.

[0035] Multiple thermal insulation decorative panels can be taken for testing, and the average value of the destructive force of the thermal insulation decorative panel installation fasteners can be calculated to reduce measurement errors.

[0036] The test device for the single-point anchoring force of the thermal insulation decorative board of the present invention is simple and reliable to connect, can be operated multiple times, reduces the preparation and waste of cement products for testing, and is conducive to saving time and resources. At the same time, the test method of the test device for the single-point anchoring force of the thermal insulation decorative board of the present invention has strong operability and convenience, and can accurately calculate the single-point anchoring force data of the thermal insulation decorative board sample.

Claims

1. A single-point anchoring force test device for installing fasteners of thermal insulation decorative panels, characterized in that: The invention comprises a frame body (14), a lower connecting rod (1), a fixed base (3), an upper connecting rod (6), a metal steel plate (7), two screw rods (15), a lifting platform (16) and a pressure sensor (17) located in the frame body (14); the screw rods (15) are vertically installed on both sides of the frame body (14); a threaded hole is drilled on both sides of the lifting platform (16), and the threaded hole is threadedly matched with the screw rod (15); the lower connecting rod (1) penetrates the central axis of the lifting platform (16) and the fixed base (3) from bottom to top, the top end is fixed with a nut, and the bottom end is fixedly connected to a gasket, and the pressure sensor (17) is fixed on the gasket; two L-shaped fixing parts (4) for connecting the mounting fasteners (5) are symmetrically installed on both sides of the fixed base (3); the top end of the upper connecting rod (6) is fixed to the top of the frame body (14), and the bottom end is fixedly connected to the center of the metal steel plate (7), and the bottom surface of the metal steel plate (7) is provided with an adhesive layer (8).

2. A single-point anchoring force test device for a fastener for installing a thermal insulation decorative panel as claimed in claim 1, characterized in that: The L-shaped fixing piece (4) is 85 mm away from the center point of the fixing base (3), and the metal steel plate (7) has a size of 150 mm×150 mm and a thickness of not less than 4 mm.

3. The test method of the single-point anchoring force test device of the thermal insulation decorative panel installation fastener according to claim 1, characterized in that: The steps include: Step 1: cutting the heat-insulating decorative plate into the same size as the metal steel plate (7); Step 2: Connect the installation fastener (5) to the cut base plate (9) of the thermal insulation decorative panel, place it between the two L-shaped fixing members (4), and fix the L-shaped fixing members (4) to the installation fastener (5); the bottom surface of the thermal insulation decorative panel is not connected to the fixed base (3); the top surface of the base plate (9) of the thermal insulation decorative panel is connected to the metal steel plate (7) via an adhesive layer (8); the center point of the thermal insulation decorative panel and the upper end connecting rod (6) are located on the same vertical line; Step 3: At the beginning of the test, the screw rod (15) is rotated to make the lifting platform (16) move downward at a constant rate of 5 mm / min, the upper connecting rod (6) remains stationary, and the lower connecting rod (1) is pulled down by the lifting platform (16) until the base plate (9) of the thermal insulation decorative board is destroyed, and the destructive force value is obtained through the pressure sensor (17); the single-point anchoring force of the thermal insulation decorative board installation fastener is calculated as follows: Where: F—single point anchoring force (kN); f—destructive force value (N).

4. The test method according to claim 3, characterized in that: The method of connecting the cut thermal insulation decorative board to the installation fastener (5) in step 2 includes side grooving and mechanical anchoring.

5. The test method according to claim 3, characterized in that: Multiple thermal insulation decorative panels may be taken for testing, and the average value of the destructive force of the fasteners for installing the thermal insulation decorative panels may be calculated.

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