Performance testing device for fireproof coating

Abstract

The utility model discloses a fireproof coating performance testing device which comprises a machine body, and one side face of the machine body is fixedly connected with a control panel screen. A cavity is reserved in the machine body, three impellers are rotationally connected to the inner wall of one side of the cavity, a material fixing structure is arranged on one side face of each blade of the three impellers, and one ends of the three impellers are connected with the output end of a motor fixed to one side face of the machine body through a supporting plate through a coupler. An inlet is formed in the side face, close to the cavity, of the machine body. A discharge hole is formed in the bottom surface of the machine body; a collecting box is fixedly connected to the outer wall of the bottom of the machine body below the discharge hole; the material fixing structure comprises two symmetrical clamping plates, guide columns fixedly connected to the outer side faces of the clamping plates and second springs arranged on the outer walls of the guide columns in a sleeving mode. The device does not need to take and place the sample plate back and forth, can continuously test the performance of various fireproof coatings, improves the test efficiency, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof coating performance testing, in particular to a performance testing device for fireproof coatings. Background Technique

[0002] Fireproof coating is a special type of coating, mainly used to improve the fire resistance of objects and prevent the rapid spread of flames. Brushing fireproof coating on the surface of those flammable materials can improve the fire resistance of the materials, slow down the spread speed of the flame, or prevent combustion within a certain period of time. Due to its important fireproof function, the quality evaluation of fireproof coatings is particularly important.

[0003] After retrieval, a patent with the Chinese patent application number CN202020793320.8 discloses a fireproof coating fire resistance test device, including a test chamber, a gas cylinder, a fire intensity adjustment box, a spraying disk, and a control box. Four corners of the bottom of the test chamber are fixedly installed with universal wheels, and a brake rod is arranged at the rear side of the universal wheels. A gas cylinder is placed on the inner bottom of the test chamber. One side of the top of the gas cylinder is provided with a gas filling valve port. A fire intensity adjustment box is fixedly installed at the central position on one side of the test chamber. The input end of the fire intensity adjustment box is fixedly connected to the output end of the gas cylinder through a conduit. A spraying disk is fixedly installed at the inner top position of the test chamber through a welding rod. The input end of the spraying disk is fixedly connected to the output end of the fire intensity adjustment box through a conduit. The fireproof coating fire resistance test device in the above patent has the following deficiencies: When placing a sample in the test chamber for fire resistance detection, after a single detection is completed, the sample needs to be taken out before the performance test of other fireproof coating samples in the next round can be carried out. The operation of opening and closing the chamber door to take and place the sample back and forth is relatively cumbersome, and continuous fireproof coating performance testing cannot be achieved, resulting in low test efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a performance testing device for fireproof coatings is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A performance testing device for fireproof coatings includes a machine body. One side surface of the machine body is fixedly connected with an operation control screen. A chamber is provided inside the machine body. One inner wall of the chamber is rotatably connected with three impellers. A material fixing structure is arranged on one side surface of each blade of the three impellers. One end of the three impellers is connected to the output end of a motor fixedly installed on one side surface of the machine body through a support plate by a coupling.

[0007] One side of the machine body close to the chamber is provided with an inlet; the bottom surface of the machine body is provided with a discharge port, and a collection box is fixedly connected to the outer wall of the bottom of the machine body below the discharge port.

[0008] As a further scheme of the present utility model: the material fixing structure includes two symmetric clamping plates, guide columns fixedly connected to the outer sides of the clamping plates, springs II sleeved on the outer walls of the guide columns, and two support blocks fixedly connected to the surfaces of the blades on the three-piece impeller, and the two ends of the spring II are respectively fixedly connected to the corresponding sides of the support block and the clamping plate, and the guide column forms a sliding fit with the support block.

[0009] As a further scheme of the present utility model: a bracket is fixedly connected to the top surface of the machine body close to the inlet, a movable plate is rotatably connected to one side of the bracket, a fixed block fixedly connected to the top surface of the machine body, a spring I fixedly connected to the corresponding sides of the movable plate and the fixed block, and a collision sensor fixedly connected to the bottom surface of the movable plate.

[0010] As a further scheme of the present utility model: a flame sprayer is connected to one side of the machine body through a top plate, and a nozzle located on the inner wall of the chamber is arranged at the top end of the flame sprayer.

[0011] As a further scheme of the present utility model: a filter plate is fixedly connected to one side of the machine body.

[0012] As a further scheme of the present utility model: a U-shaped frame is fixedly connected to the top inner wall of the machine body close to the inlet, and two adhesion detection components with the same structure are arranged on the bottom inner wall of the U-shaped frame front and back.

[0013] As a further scheme of the present utility model: the adhesion detection component includes a T-shaped rod slidably connected to the bottom inner wall of the U-shaped frame, two or more equally spaced limiting holes arranged on one side of the T-shaped rod, a sliding groove arranged on the bottom surface of the U-shaped frame, a limiting block slidably connected to the inner wall of the sliding groove through a slider, and a scraping plate slidably matched with the bottom inner wall of the T-shaped rod through a sliding column, and one end of the limiting block is adapted to the limiting hole;

[0014] The bottom end surface of the T-shaped rod is fixedly connected with a pressure sensor.

[0015] As a further scheme of the present utility model: one end of the clamping plate close to the central axis of the three-piece impeller is in a right-angle bending shape, and one end of the clamping plate far from the central axis of the three-piece impeller is in an arc shape.

[0016] Compared with the prior art, the present utility model provides a performance testing device for fireproof coatings, which has the following beneficial effects:

[0017] The performance testing device for fire retardant coatings is provided with three impellers and an inlet and other structures. It is only necessary to intermittently push the sample from the inlet to a certain blade of the three impellers. After the fixed sample is tested for fire resistance in passive rotation, when one arc-shaped end of the clamping plate corresponds to the discharge port, the sample basically vertically downward will slide down under the action of its own weight and centrifugal force, and slide into the collection box through the discharge port, thereby completing the automatic discharge and collection of materials. There is no need to take and place the sample back and forth, and can realize continuous testing of the performance of multiple fire retardant coatings, improve test efficiency, and is easy to use.

[0018] The performance testing device for the fire retardant coating pushes the sample coated with the fire retardant coating from the inlet onto one of the horizontal blades on the three impellers, especially between two clamping plates. After the sample is pushed in, the clamping plates will clamp the side of the sample under the support of spring 2 to prevent the sample from falling off during the rotation of the three impellers.

[0019] The performance testing device for fire retardant coating can prevent smoke from being directly discharged to the outside and causing environmental pollution by being provided with a filter plate; the downward movement height of the two T-bars is adjusted in turn, and then the limit blocks are pushed into the limit holes, thereby limiting the use height of the T-bars; when in use, the sample coated with fire retardant coating is pushed in close to the top of the body facing the inlet, and when the surface of the sample passes through the bottom surface of the scraper, the adhesion effect of the fire retardant coating is judged according to the scratches left on its surface by the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A side structural schematic diagram of a performance testing device for fire retardant coatings proposed by the utility model;

[0021] Figure 2 This is a front structural schematic diagram of a performance testing device for fire retardant coatings proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of a partial cross-sectional structure when viewed from above of a performance testing device for a fire retardant coating proposed by the utility model;

[0023] Figure 4 A schematic diagram of a partial cross-sectional structure of a fire retardant coating performance test device proposed by the utility model;

[0024] Figure 5 A schematic diagram of the movable plate structure of a performance testing device for fire retardant coatings proposed by the utility model;

[0025] Figure 6 A schematic diagram of the three-blade impeller structure of a performance testing device for fire retardant coatings proposed by the utility model;

[0026] Figure 7Schematic diagram of the enlarged structure of part A of a performance testing device for a fireproof coating proposed by the present utility model.

[0027] In the figure: 1 body, 101 chamber, 102 discharge port, 2 motor, 3 collection box, 4 control panel screen, 5 movable plate, 501 first spring, 502 support, 6 scraper, 7 U-shaped frame, 701 chute, 702 limit block, 8 clamping plate, 801 second spring, 802 guide post, 803 support block, 9 three-blade impeller, 10 nozzle, 1001 flame sprayer, 11 filter plate, 12 collision sensor, 13 T-shaped rod, 1301 limit hole. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Embodiment 1

[0029] A performance testing device for a fireproof coating. In order to fix the sample coated with the fireproof coating, as Figures 1-4 and Figure 6 shown, it includes a body 1. A chamber 101 is provided inside the body 1. One side inner wall of the chamber 101 is rotatably connected with a three-blade impeller 9. A material fixing structure is provided on one side surface of each blade of the three-blade impeller 9. One end of the three-blade impeller 9 is connected to the output end of a motor 2 fixed to one side surface of the body 1 through a support plate and electrically connected to the control module through a coupling; starting the motor 2 drives the three-blade impeller 9 to rotate, thereby driving the fireproof board fixed by the material fixing structure thereon to change its orientation.

[0030] Preferably, the outer wall of the three-blade impeller 9 is in contact with the inner wall of the chamber 101;

[0031] Furthermore, the material fixing structure includes two symmetric clamping plates 8, a guide post 802 welded to the outer side surface of the clamping plate 8, a second spring 801 sleeved on the outer wall of the guide post 802, and two support blocks 803 fixedly connected to the surface of the blade on the three-blade impeller 9. The two ends of the second spring 801 are respectively welded to the corresponding side surfaces of the support block 803 and the clamping plate 8. The guide post 802 forms a sliding fit with the support block 803; Push the sample coated with the fireproof coating into one of the blades of the three-blade impeller 9 that is in a horizontal state at this time, especially between the two clamping plates 8. After the sample is pushed in, the clamping plate 8 will clamp the side surface of the sample under the top support of the second spring 801 to prevent the sample from falling off during the rotation of the three-blade impeller 9.

[0032] Preferably, one end of the clamping plate 8 close to the central axis of the three-piece impeller 9 is in a right-angled bending shape, and the end of the clamping plate 8 far from the central axis of the three-piece impeller 9 is in an arc shape; while facilitating the smooth entry of the template coated with fireproof paint between the two clamping plates 8, it can also prevent the template coated with fireproof paint from detaching from the material fixing structure during the rotation of the three-piece impeller 9.

[0033] Furthermore, one side surface of the machine body 1 is connected with a flamethrower 1001 electrically connected to the control module through a top plate. A nozzle 10 is arranged at the top end of the flamethrower 1001 and is located on the inner wall of the chamber 101. After the material fixing structure placed on the three-piece impeller 9 rotates passively by 120°, the control module starts the flamethrower 1001, and the nozzle 10 sprays fire on the template on the material fixing structure. When the combustion time is reached, while controlling the flamethrower 1001 to turn off, the control module controls the three-piece impeller 9 to rotate again, so as to adjust the orientation change of the template after the fire resistance test.

[0034] Preferably, the flamethrower 1001 adopts the existing technology and will not be elaborated here. The nozzle 10 is directly opposite to one of the blades of the three-piece impeller 9.

[0035] More preferably, one side surface of the machine body 1 is fixedly connected with a filter plate 11 for filtering the flue gas after combustion in the chamber 101; preventing the direct discharge of flue gas, which may cause environmental pollution.

[0036] In order to detect the adhesion of the fireproof paint, as Figures 1-4 and Figure 7 shown, an inlet [not shown in the figure] is provided on one side surface of the machine body 1 close to the chamber 101; a discharge port 102 is provided on the bottom surface of the machine body 1. A collection box 3 is fixed to the outer wall of the bottom of the machine body 1 below the discharge port 102 by bolts. During the passive rotation of the template carried by the three-piece impeller 9 after the fire resistance test, when the arc-shaped end of the clamping plate 8 corresponds to the discharge port 102, the template that is basically perpendicular downward will slide down under its own weight and centrifugal force, and slide into the collection box 3 through the discharge port 102, thus completing the automatic discharging and collection of the material.

[0037] Furthermore, a U-shaped frame 7 is fixedly connected to the inner wall of the top of the machine body 1 close to the inlet. Two adhesion detection components with the same structure are arranged on the bottom inner wall of the U-shaped frame 7. The adhesion detection component includes a T-shaped rod 13 slidably connected to the bottom inner wall of the U-shaped frame 7, a plurality of limiting holes 1301 arranged at equal intervals on one side surface of the T-shaped rod 13, a chute 701 arranged on the bottom surface of the U-shaped frame 7 facing upward, a limiting block 702 slidably connected to the inner wall of the chute 701 through a slider, and a T-shaped scraper 6 slidably matched with the bottom inner wall of the T-shaped rod 13 through a sliding column, and one end of the limiting block 702 is adapted to the limiting hole 1301.

[0038] Preferably, a pressure sensor is fixedly connected to the bottom end surface of the T-shaped rod 13; the pressure sensor detects the extrusion force between the T-shaped rod 13 and the scraping plate 6 when the template passes by, so as to adjust the downward movement height of the T-shaped rod 13 when detecting templates of different heights.

[0039] Adjust the downward movement heights of the two T-shaped rods 13 successively, and then push the limiting block 702 into the limiting hole 1301 to limit the use height of the T-shaped rod 13; during use, when the template coated with fireproof paint is closely attached to the top surface of the machine body 1 and pushed into the inlet, when the surface of the template passes under the bottom surface of the scraping plate 6, the adhesion effect of the fireproof paint can be judged according to the scratches left on its surface by the scraping plate 6.

[0040] Working principle: Adjust the downward movement heights of the two T-shaped rods 13 successively, and then push the limiting block 702 into the limiting hole 1301 to limit the use height of the T-shaped rod 13. When the template coated with fireproof paint is closely attached to the top surface of the machine body 1 and pushed into the inlet, when the surface of the template passes under the bottom surface of the scraping plate 6, the adhesion effect of the fireproof paint can be judged according to the scratches left on its surface by the scraping plate 6. Then continuously push the template coated with fireproof paint onto one of the blades that is horizontal at this time on the three-piece impeller 9, especially between the two clamping plates 8. After the template is pushed in, the clamping plate 8 will clamp the side of the template under the top support of the second spring 801.

[0041] Start the motor 2 to drive the three-piece impeller 9 to rotate, and then drive the fireproof material plate fixed by the material fixing structure on it to change its orientation. After the material fixing structure placed on the three-piece impeller 9 rotates passively by 120°, control the flamethrower 1001 to start, and spray fire on the template on the material fixing structure through the nozzle 10. When the combustion time is reached, while controlling the flamethrower 1001 to close, control the three-piece impeller 9 to rotate again. When the arc-shaped end of the clamping plate 8 corresponds to the discharge port 102, the template that is basically vertically downward will slide down under the action of its own weight and centrifugal force, and slide into the collection box 3 through the discharge port 102 to automatically cool down, thus completing the automatic discharge and collection of the material, preventing direct taking and scalding the human hand, and being able to realize the continuous detection of the performance of various fireproof paints. Embodiment 2

[0042] A performance testing device for fireproof paint, as Figure 1 and Figure 5 shown, the following supplement is made in this embodiment on the basis of Embodiment 1: A control panel screen 4 is fixedly installed on one side surface of the machine body 1 by bolts;

[0043] Further, a bracket 502 is fixedly connected to the top surface of the body 1 near the inlet. One side surface of the bracket 502 is rotatably connected to an L-shaped movable plate 5, a fixed block fixedly connected to the top surface of the body 1, a first spring 501 welded to the corresponding side surfaces of the movable plate 5 and the fixed block, and a collision sensor 12 fixedly connected to the bottom surface of the movable plate 5. During the passive rotation of the three impellers 9, when one of the blades is in a horizontal position with respect to the bottom end of the inlet, the blade will contact the collision sensor 12. The collision sensor 12 transmits a signal to the control module, which controls the ignition of the flame sprayer 1001 to perform a fire resistance test on the template of the material fixing structure on another blade in the chamber 101. At the same time, the control module stops the operation of the motor 2 to facilitate the smooth export of another template that has passed the fire resistance test. When the combustion time is reached, the control module starts the motor 2 again to drive the three impellers 9 to rotate. At this time, the movable plate 5 disengages from the blades of the three impellers 9 and resets under the support of the first spring 501.

[0044] Working principle: First, adjust the downward height of the two T-shaped rods 13 successively, and then push the limit block 702 into the limit hole 1301 to limit the use height of the T-shaped rods 13. When pushing the template coated with fireproof paint closely against the top surface of the body 1 towards the inlet, when the surface of the template passes under the bottom surface of the scraper 6, the adhesion effect of the fireproof paint can be judged according to the scratches left on its surface by the scraper 6. Then, continue to push the template coated with fireproof paint onto one of the blades of the three impellers 9 that is in a horizontal state at this time, especially between the two clamping plates 8. After the template is pushed in, the clamping plates 8 will clamp the side surface of the template under the support of the second spring 801.

[0045] The equipment is operated by manipulating the control panel 4. The motor 2 is started to drive the three impellers 9 to rotate, thereby driving the fireproof material plate fixed by the material fixing structure thereon to change its orientation. When one of the blades is in a horizontal position with respect to the bottom end of the inlet, the blade will contact the collision sensor 12. The collision sensor 12 transmits a signal to the control module, which controls the ignition of the flame sprayer 1001 to perform a fire resistance test on the template of the material fixing structure on another blade in the chamber 101. At the same time, the control module stops the operation of the motor 2 to facilitate the smooth export of another template that has passed the fire resistance test. Specifically, when the arc-shaped end of the clamping plate 8 corresponds to the discharge port 102, the template that is basically perpendicular downward will slide down under the action of its own weight and centrifugal force and slide into the collection box 3 through the discharge port 102, thus completing the automatic discharge and collection of the material. When the combustion time is reached, the control module starts the motor 2 again to drive the three impellers 9 to rotate. At this time, the movable plate 5 disengages from the blades of the three impellers 9 and resets under the support of the first spring 501.

[0046] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A performance testing device for fire retardant coating, comprising a body (1), characterized in that: A control panel (4) is fixedly connected to one side of the machine body (1); a chamber (101) is provided inside the machine body (1); three impellers (9) are rotatably connected to an inner wall of one side of the chamber (101); a material fixing structure is provided on one side of each blade of the three impellers (9); and one end of the three impellers (9) is connected to an output end of a motor (2) fixed to one side of the machine body (1) via a support plate via a coupling; An inlet is provided on a side surface of the machine body (1) close to the chamber (101); a discharge port (102) is provided on the bottom surface of the machine body (1); and a collection box (3) is fixedly connected to the outer wall of the bottom of the machine body (1) below the discharge port (102).

2. A performance testing device for fire retardant coating according to claim 1, characterized in that: The material fixing structure comprises two symmetrical clamping plates (8), a guide column (802) fixedly connected to the outer side surface of the clamping plate (8), a second spring (801) sleeved on the outer wall of the guide column (802), and two support blocks (803) fixedly connected to the surfaces of the blades on the three impellers (9), and the two ends of the second spring (801) are respectively fixedly connected to the support block (803) and the corresponding side surface of the clamping plate (8), and the guide column (802) and the support block (803) form a sliding fit.

3. A performance testing device for fire retardant coating according to claim 2, characterized in that: The top surface of the machine body (1) near the inlet is fixedly connected to a bracket (502), and one side of the bracket (502) is rotatably connected to a movable plate (5), a fixed block fixedly connected to the top surface of the machine body (1), a spring (501) fixedly connected to the movable plate (5) and a side surface corresponding to the fixed block, and a collision sensor (12) fixedly connected to the bottom surface of the movable plate (5).

4. A performance testing device for fire retardant coating according to claim 3, characterized in that: A flamethrower (1001) is connected to one side of the machine body (1) via a top plate, and a nozzle (10) located on the inner wall of the chamber (101) is arranged at the top of the flamethrower (1001).

5. A performance testing device for fire retardant coating according to claim 4, characterized in that: A filter plate (11) is fixedly connected to one side of the machine body (1).

6. A performance testing device for fire retardant coating according to claim 5, characterized in that: A U-shaped frame (7) is fixedly connected to the top inner wall of the machine body (1) close to the inlet, and two front and rear adhesion detection components with the same structure are arranged on the bottom inner wall of the U-shaped frame (7).

7. A performance testing device for fire retardant coating according to claim 6, characterized in that: The adhesion detection assembly comprises a T-shaped rod (13) slidably connected to the inner wall of the bottom of the U-shaped frame (7), two or more limiting holes (1301) equidistantly arranged on a side surface of the T-shaped rod (13), a slide groove (701) arranged on the bottom surface of the U-shaped frame (7), a limiting block (702) slidably connected to the inner wall of the slide groove (701) via a slider, and a scraper (6) slidably matched with the inner wall of the bottom of the T-shaped rod (13) via a sliding column, and one end of the limiting block (702) is adapted to the limiting hole (1301); A pressure sensor is fixedly connected to the bottom end surface of the T-shaped rod (13).

8. The performance testing device for fire retardant coating according to claim 2, characterized in that: One end of the clamping plate (8) close to the central axis of the three impellers (9) is in a right-angle bend shape, and one end of the clamping plate (8) away from the central axis of the three impellers (9) is in an arc shape.

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