Gypsum board fire resistance detection device

Abstract

The utility model relates to the technical field of gypsum board detection, and discloses a gypsum board fire resistance detection device which comprises a bottom plate, a heat insulation frame fixedly installed on the bottom plate, a shielding assembly arranged on the heat insulation frame, a fixing frame fixedly installed on the bottom plate, a stepping motor arranged on the fixing frame, and a rotating shaft fixedly installed at the output end of the stepping motor. A rotating disc is fixedly mounted on the rotating shaft, connecting rods are fixedly mounted on the rotating disc at equal intervals, mounting blocks are fixedly mounted on the connecting rods, placing assemblies are arranged on the mounting blocks, and a combustion assembly is arranged in the heat insulation frame. According to the utility model, the feeding and discharging activities of the gypsum board sample are not carried out at the same position, so that the operation safety and the working efficiency are improved, and meanwhile, the rapid switching of a horizontal test mode and a vertical test mode of the to-be-tested gypsum board can be realized, thereby providing comprehensive data support for the fire resistance of the gypsum board; and the experimental diversity and the result reliability are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gypsum board detection technical field, concretely is a gypsum board fire resistance detection device. BACKGROUND

[0002] With the development of the construction industry and the importance of building safety, the fire resistance of building materials has become one of the key factors to ensure the safety of life and property, gypsum board as a kind of building material widely used in indoor partition, ceiling and other parts, because of its light weight, sound insulation, heat insulation and easy to process installation and other advantages are favored, however, its performance in fire directly related to the overall fire resistance of building, therefore, the research and detection of gypsum board fire resistance is particularly important.

[0003] The patent with the current announcement number CN221199579U discloses a gypsum board fire resistance testing machine, which comprises a base, a pusher, a moving plate, a blocking frame, temperature-resistant glass, a connector and a fixer.

[0004] However, the above-mentioned device has the following problems during use: in the above-mentioned device, the replacement of the sample (gypsum board) (i.e. loading a new sample) and the discharging (i.e. removing the tested sample) are usually carried out at the same position, which prolongs the overall test period, resulting in low test efficiency of the gypsum board, in addition, the equipment can only test at one fixed angle (horizontal), and cannot fully simulate various stress conditions that may be encountered in actual application, resulting in insufficient reliability of the test data of the gypsum board. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the prior art and provides a gypsum board fire resistance detection device, which separates the sample replacement and discharging process to different positions, significantly improving the safety and efficiency of operation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of gypsum board fire resistance detection device, including bottom plate, the heat insulation frame is fixedly installed on the bottom plate, the heat insulation frame is provided with shielding assembly, the fixed frame is fixedly installed on the bottom plate, the fixed frame is provided with stepper motor, the output of the stepper motor is fixedly installed with rotating shaft, the rotating shaft is fixedly installed with rotating disc, the rotating disc is equidistantly fixedly installed with multiple connecting rods on circumference, all the connecting rods are fixedly installed with mounting block, the mounting block is provided with placing assembly, the inside of the heat insulation frame is provided with combustion assembly.

[0008] Preferably, the placing assembly includes a placing frame rotatably mounted on the mounting block, the placing frame has an insertion slot formed therein, and the placing frame is provided with two thermocouples.

[0009] Preferably, the mounting block is fixedly installed with a fixing ring having two threaded holes formed therein, the two threaded holes are adapted to the placing frame in the vertical state and the placing frame in the horizontal state respectively, and the placing frame is threadedly installed with a threaded column adapted to the threaded hole.

[0010] Preferably, the mounting block is fixedly installed with two positioning blocks, the two positioning blocks are located on the movement path of the placing frame, and the two positioning blocks abut against the placing frame in the vertical state and the placing frame in the horizontal state respectively.

[0011] Preferably, the combustion assembly includes an electric telescopic rod installed on the heat insulation frame, the electric telescopic rod is fixedly installed with an installation plate at the other end thereof, and the installation plate is provided with an ignition head.

[0012] Preferably, the number of the combustion assemblies is two, and the two combustion assemblies are adapted to the placing frame in the horizontal state and the placing frame in the vertical state respectively.

[0013] Preferably, the shielding assembly includes a shielding plate slidably installed on the heat insulation frame, the shielding plate is fixedly installed with a handle, the shielding plate has a slot adapted to the connecting rod formed therein, and the slot is inlaidly installed with sealing strips at both sides thereof.

[0014] Preferably, the side of the shielding plate facing the heat insulation frame is fixedly installed with a sliding block, and the heat insulation frame has a sliding groove for the sliding block to slide.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model discloses a sample replacement and discharging process are separated to different parts, greatly improved the security and convenience of operation, the rotation disc of stepping motor drive realizes the automatic rotation of sample, so that the last sample can be immediately moved to the safe position and discharges after completing the test, and the new sample can be easily loaded into the placing frame in another specified position, and this asynchronous operation mode not only reduces the time and complexity of manual intervention, but also ensures that the test sample is not disturbed when the sample is replaced, thereby maintaining the stability of the sample test environment and the accuracy of the results, and since the existence of the shielding assembly, any potential danger of the sample during replacement is effectively isolated, further ensuring the safety of the operator.

[0017] (2) The utility model discloses the quick switching mechanism of horizontal and vertical two kinds of test mode is designed ingeniously to satisfy the fire resistance performance evaluation demand under different scenes, through the cooperation of fixed ring and screw hole on the mounting block and the accurate location of positioning block, the user can conveniently adjust the angle of placing frame, and the gypsum board sample can receive flame test under vertical or horizontal state, and this flexibility makes researchers obtain more comprehensive data set on the same equipment, simulates various stress conditions that the gypsum board may encounter in real building environment, in addition, two independent combustion components provide consistent flame contact conditions for samples in different postures, ensure that the test result has high contrast and reliability, and this design not only enhances the diversity of experiment, but also provides more scientific data support for developing and optimizing gypsum board products. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure schematic diagram of a gypsum board fire resistance performance detection device provided by the utility model;

[0019] Figure 2 It is another view structure schematic diagram of a heat insulation frame of a gypsum board fire resistance performance detection device provided by the utility model;

[0020] Figure 3 It is a top view structure schematic diagram of a gypsum board fire resistance performance detection device provided by the utility model;

[0021] Figure 4 It is a combustion component structure schematic diagram of a gypsum board fire resistance performance detection device provided by the utility model;

[0022] Figure 5 It is a shielding component structure schematic diagram of a gypsum board fire resistance performance detection device provided by the utility model;

[0023] Figure 6 It is a placing component structure schematic diagram of a gypsum board fire resistance performance detection device provided by the utility model;

[0024] Figure 7 A placing assembly structure schematic view of a gypsum board fire resistance detection device is provided in the utility model.

[0025] In the drawing: 1, bottom plate; 2, heat insulation frame; 3, shielding plate; 4, stepping motor; 5, rotating disc; 6, connecting rod; 7, mounting block; 8, fixing frame; 9, rotating shaft; 10, sliding groove; 11, electric telescopic rod; 12, mounting plate; 13, ignition head; 14, sliding block; 15, groove body; 16, sealing strip; 17, handle; 18, placing frame; 19, insertion slot; 20, thermocouple; 21, positioning block; 22, fixing ring; 23, threaded hole; 24, threaded column. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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.

[0027] Please refer to Figures 1 to 7 A gypsum board fire resistance detection device, comprising a bottom plate 1, a heat insulation frame 2 is fixedly installed on the bottom plate 1, the heat insulation frame 2 is used to isolate the test environment from the external environment, and provides a controlled test space for sample testing, as an optimization, an observation window can be formed on the heat insulation frame 2 to observe the inside of the heat insulation frame 2, and a cleaning device can be arranged in the heat insulation frame 2 to ensure the cleanliness of the inside of the heat insulation frame 2.

[0028] A shielding assembly is arranged on the heat insulation frame 2, which can close the heat insulation frame 2 during the test to prevent the flame or heat from leaking out.

[0029] A fixing frame 8 is fixedly installed on the bottom plate 1, a stepping motor 4 is arranged on the fixing frame 8, a rotating shaft 9 is fixedly installed on the output end of the stepping motor 4, a rotating disc 5 is fixedly installed on the rotating shaft 9, connecting rods 6 are equidistantly fixedly installed on the rotating disc 5, mounting blocks 7 are fixedly installed on the connecting rods 6, and the starting of the stepping motor 4 can make the rotating disc 5 rotate, so that different mounting blocks 7 are in the inside of the heat insulation frame 2, and the switching of samples is realized.

[0030] A placing assembly is arranged on the mounting block 7, a combustion assembly is arranged in the inside of the heat insulation frame 2, the placing assembly is used to fix the gypsum board samples to be tested, so that they can maintain correct positions during the test, and the combustion assembly is responsible for generating a flame to simulate fire conditions and test the fire resistance of the gypsum board.

[0031] The placing assembly comprises a placing frame 18 rotatably mounted on the mounting block 7, which is used to accommodate and fix the gypsum board sample, ensure that they do not shift during the test, and enable the user to adjust the angle of the sample (vertical or horizontal) as needed to adapt to different test requirements. The placing frame 18 is provided with an insertion slot 19, and two thermocouples 20 are arranged on the placing frame 18. The insertion slot 19 facilitates quick and accurate installation of the gypsum board sample, and also facilitates removal of the sample. The thermocouples 20 are used to monitor the change in surface temperature of the sample in real time, providing key data for the test results to evaluate the fire resistance of the gypsum board.

[0032] As a preferred, an elastic pad can be arranged on the contact surface of the placing frame 18 and the gypsum board sample. The elastic pad on the placing frame 18 is in interference fit with the gypsum board to be tested, so as to stably fix the gypsum board sample.

[0033] The mounting block 7 is fixedly provided with a fixing ring 22, and the fixing ring 22 is provided with two threaded holes 23. The two threaded holes 23 are adapted to the placing frame 18 in the vertical state and the placing frame 18 in the horizontal state, respectively. The placing frame 18 is provided with a threaded column 24 which is installed by screwing, and the threaded column 24 is adapted to the threaded hole 23.

[0034] The user can select a suitable sample position according to the test requirements. By using the threaded column 24 in cooperation with different threaded holes 23, the position of the placing frame 18 can be locked to ensure that it does not change accidentally during the test. The threaded cooperation between the threaded column 24 and the threaded hole 23 ensures the stability of the angle of the placing frame 18 during the test.

[0035] The mounting block 7 is fixedly provided with two positioning blocks 21, and the two positioning blocks 21 are located on the movement path of the placing frame 18, and the two positioning blocks 21 abut against the placing frame 18 in the vertical state and the placing frame 18 in the horizontal state, respectively.

[0036] The positioning block 21 is used to limit the movement path of the placing frame 18, so that it can only be converted between predetermined angles. When the placing frame 18 touches the positioning block 21, it reaches the set angle. At this time, the position of the placing frame 18 can be fixed by the threaded column 24.

[0037] The combustion assembly comprises an electric telescopic rod 11 mounted on the heat insulation frame 2. The other end of the electric telescopic rod 11 is fixedly provided with a mounting plate 12, and the mounting plate 12 is provided with an ignition head 13.

[0038] The electric telescopic rod 11 ensures that the flame can directly contact the sample during detection, and during the switching activity of the sample to be detected, the electric telescopic rod 11 retracts the mounting plate 12 and the ignition head 13, so that the burning assembly does not affect the movement of the mounting block 7, the mounting plate 12 serves as a carrier of the ignition head 13, which ensures that it can be accurately moved under the action of the electric telescopic rod 11, and the ignition head 13 is the core component of the flame, which is used to ignite the gas and simulate the high-temperature environment under the fire condition.

[0039] The number of burning assemblies is two, which are matched with the horizontally placed placing frame 18 and the vertically placed placing frame 18, respectively, and such a design allows the gypsum board placed in different directions to be tested for fire resistance, thereby improving the test efficiency of the gypsum board and the comprehensiveness of the data.

[0040] The shielding assembly comprises a shielding plate 3, the shielding plate 3 is slidingly installed on the heat insulation frame 2, the shielding plate 3 is fixedly installed with a handle 17, the shielding plate 3 is provided with a groove 15 matched with the connecting rod 6, and the both sides of the groove 15 are embeddedly installed with sealing strips 16.

[0041] The shielding plate 3 is used for closing the heat insulation frame 2 before and after the test, and can ensure the sealing state of the heat insulation frame 2 as much as possible during the test of the gypsum board, and the handle 17 facilitates the user to manually open and close the shielding plate 3.

[0042] The shielding plate 3 is fixedly installed with a sliding block 14 on the side facing the heat insulation frame 2, the heat insulation frame 2 is provided with a sliding groove 10 for the sliding block 14 to slide, and the sliding block 14 slides along the sliding groove 10 on the heat insulation frame 2, thereby ensuring the smooth movement and accurate positioning of the shielding plate 3.

[0043] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting fire resistance of gypsum board, comprising a base plate (1), a heat insulation frame (2) is fixedly installed on the base plate (1), characterized in that, The heat insulation frame (2) is provided with a shielding assembly, the bottom plate (1) is fixedly installed with a fixing frame (8), the fixing frame (8) is provided with a stepping motor (4), the output end of the stepping motor (4) is fixedly installed with a rotating shaft (9), the rotating shaft (9) is fixedly installed with a rotating disc (5), the rotating disc (5) is fixedly installed with a plurality of connecting rods (6) at equal intervals along the circumference, all the connecting rods (6) are fixedly installed with mounting blocks (7), the mounting blocks (7) are provided with a placing assembly, and the inside of the heat insulation frame (2) is provided with a combustion assembly.

2. A device for detecting fire resistance of a gypsum board according to claim 1, wherein The placing assembly comprises a placing frame (18), the placing frame (18) is rotatably installed on the mounting block (7), the placing frame (18) is provided with two thermocouples (20), and the placing frame (18) is provided with an insertion slot (19).

3. A device for detecting fire resistance of a gypsum board according to claim 1, wherein The mounting block (7) is fixedly installed with a fixing ring (22), the fixing ring (22) is provided with two threaded holes (23), the two threaded holes (23) are adapted to the placing frame (18) in the vertical state and the placing frame (18) in the horizontal state respectively, the placing frame (18) is threadedly installed with a threaded column (24), and the threaded column (24) is adapted to the threaded hole (23).

4. The gypsum board fire resistance detection device of claim 1, wherein, The mounting block (7) is fixedly installed with two positioning blocks (21), the two positioning blocks (21) are located on the movement path of the placing frame (18), and the two positioning blocks (21) are respectively abutted against the placing frame (18) in the vertical state and the placing frame (18) in the horizontal state.

5. A device for detecting fire resistance of a gypsum board according to claim 1, wherein The combustion assembly comprises an electric telescopic rod (11), the electric telescopic rod (11) is installed on the heat insulation frame (2), the other end of the electric telescopic rod (11) is fixedly installed with a mounting plate (12), and the mounting plate (12) is provided with an ignition head (13).

6. A device for detecting fire resistance of a gypsum board according to claim 2, wherein The number of the combustion assembly is two, and the two combustion assemblies are adapted to the placing frame (18) placed horizontally and the placing frame (18) placed vertically respectively.

7. A device for detecting fire resistance of a gypsum board according to claim 1, wherein The shielding assembly comprises a shielding plate (3), the shielding plate (3) is slidably installed on the heat insulation frame (2), the shielding plate (3) is fixedly installed with a handle (17), the shielding plate (3) is provided with a groove (15) adapted to the connecting rod (6), and the two sides of the groove (15) are inlaidly installed with sealing strips (16).

8. A device for detecting fire resistance of a gypsum board according to claim 7, wherein The side, facing the heat insulation frame (2), of the shielding plate (3) is fixedly installed with a sliding block (14), and the heat insulation frame (2) is provided with a sliding groove (10) for sliding of the sliding block (14).

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