CN115436560A - House outer wall fire-retardant material fire behaviour detection device - Google Patents
House outer wall fire-retardant material fire behaviour detection device Download PDFInfo
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Abstract
The invention relates to the field of flame retardant property detection devices, in particular to a device for detecting the flame retardant property of a fireproof material of an outer wall of a house, which comprises a box body, a sliding plate a, a supporting rod, a fixing block, the fireproof material of the outer wall of the house, a control box, a combustion device, a supporting pipe and a controller, wherein the box body is provided with a sliding plate a; a sliding plate a is arranged on the inner wall of the rear side of the box body in a sliding manner; the supporting rod is rotatably arranged on the front surface of the sliding plate a, and the sector plate is arranged on the supporting rod; the fixed block is arranged on the front surface of the sector plate, and a clamping assembly used for fixing a fireproof material of an outer wall of a house is arranged on the fixed block; the control box is arranged on the right side surface of the box body, a combustion device is arranged in the control box, the combustion device is connected with a supporting pipe through a hose, the supporting pipe is arranged on the wall of the right side of the box body in a sliding manner, and an ignition device is arranged at the left end of the supporting pipe; the controller is arranged in the control box. The invention can realize horizontal detection and vertical detection of the fire resistance of the fireproof material of the outer wall of the house, has various detection modes, is convenient to compare and improves the accuracy of the fire resistance detection.
Description
Technical Field
The invention relates to the field of flame retardant property detection devices, in particular to a device for detecting the flame retardant property of a fireproof material of an outer wall of a house.
Background
The fire-retardant material of the exterior wall of the house belongs to building materials, the combustion performance of the building materials refers to all physical and chemical changes generated when the building materials are combusted or meet fire, the fire-retardant performance detection of the fire-retardant material of the exterior wall of the house generally comprises a horizontal detection method and a vertical detection method, the horizontal detection method is to horizontally fix the material and ignite below a free end, the vertical detection method is to hang one end of the fire-retardant material and then ignite the free end at the bottom. The judgment criteria include ignition time, presence or absence of visible flame in the material, combustion speed, combustion phenomenon, etc. The existing device for detecting the flame retardant property of the fireproof material of the outer wall of the house can only detect the flame retardant property in a single mode, namely, the device cannot detect the flame retardant property by multiple methods, the experiment lacks contrast, and the accuracy of judging the flame retardant property is not enough.
Chinese patent No. CN212932524U discloses a fire-retardant property detection device for fire-retardant materials on exterior walls of houses, which solves the problem of poor universality of the existing fire-retardant property detection device for fire-retardant materials through the arrangement of an installation mechanism, and solves the problem that the existing fire-retardant property detection device for fire-retardant materials is difficult to detect the fire resistance of a test sample comprehensively through the arrangement of a swing mechanism.
However, the above-mentioned known solutions have the following disadvantages: the flame retardant property of the fireproof material can only be detected by a vertical method, and the flame retardant property judgment accuracy is insufficient.
Disclosure of Invention
The invention aims to provide a device for detecting the flame retardant property of a fireproof material of an outer wall of a house, aiming at the problem that a device for detecting the flame retardant property in the background art can only detect the flame retardant property in a single mode.
On one hand, the invention provides a device for detecting the flame retardant property of a fireproof material of an outer wall of a house, which comprises a box body, a sliding plate a, a supporting rod, a fixing block, the fireproof material of the outer wall of the house, a control box, a combustion device, a supporting pipe and a controller;
a sliding plate a is arranged on the inner wall of the rear side of the box body in a sliding mode along the vertical direction, and a lifting assembly for driving the sliding plate a to move up and down is arranged on the box body; the supporting rod is horizontally and rotatably arranged on the front surface of the sliding plate a, the supporting rod is provided with a sector plate, and the sliding plate a is provided with a limiting assembly for limiting the position of the sector plate; the fixing block is arranged on the front surface of the sector plate, the fixing block is positioned at the arc bottom of the sector plate, a clamping component for fixing the fireproof material of the outer wall of the house is arranged on the end surface of the fixing block, facing the supporting rod, and the fireproof material of the outer wall of the house is in a horizontal state;
the control box is arranged on the right side surface of the box body, a combustion device is arranged in the control box, the combustion device is connected with a supporting pipe through a hose, the supporting pipe is arranged on the wall of the right side of the box body in a sliding mode along the transverse direction, an ignition device is arranged at the left end of the supporting pipe, and a power assembly for driving the supporting pipe to move is arranged in the control box; the controller sets up in the control box, and the equal control connection of controller and burner, power component and ignition sets up control panel on the control box outer wall, control panel and controller electric connection.
Preferably, the lifting assembly comprises a screw a and a knob; a threaded hole a is vertically formed in the sliding plate a, a screw rod a is vertically and rotatably arranged on the inner wall of the bottom of the box body, the top of the screw rod a penetrates through the threaded hole a and the top of the box body, and the screw rod a is matched with the threaded hole a; the knob is arranged on the top of the screw rod a.
Preferably, the limiting assembly comprises a limiting plate, a U-shaped plate and a locking bolt; the two groups of limiting plates are respectively arranged on the two end surfaces of the circular arc of the sector plate; the U-shaped plates are arranged on the front surface of the sliding plate a, openings of U-shaped grooves in the U-shaped plates are upward, the U-shaped plates are arranged in two groups, the two groups of U-shaped plates are symmetrical relative to the supporting rod, and one group of limiting plates is inserted into one group of U-shaped plates in a matched mode; the locking bolts penetrate through threaded holes in the U-shaped plate and are in contact with the limiting plate, and the locking bolts are arranged in two groups.
Preferably, the clamping assembly comprises a clamping plate a, a clamping plate b, a nut and a bolt; the clamping plate a is horizontally arranged on the right side surface of the fixing block; the clamping plate b is arranged on the right side face of the fixing block in a sliding mode in the vertical direction, the clamping plate b is located above the clamping plate a, the fireproof material of the outer wall of the house is located between the clamping plate a and the clamping plate b, and the clamping plate a and the clamping plate b are provided with opposite through holes; the bolts pass through the two groups of through holes and are locked by nuts.
Preferably, the power assembly comprises a sliding plate b, a screw rod b and a motor; the sliding plate b is arranged on the inner wall of the control box in a transverse sliding mode and connected with the supporting pipe, and a threaded hole b is formed in the sliding plate b in the transverse direction; the motor sets up on control box right side inner wall, and the output shaft and the screw rod b of motor are connected, screw rod b and screw hole b cooperation.
Preferably, a guide cylinder is arranged on the inner wall of the right side of the box body, and the support tube penetrates through the guide cylinder in a matching mode.
Preferably, a receiving disc is placed on the inner wall of the bottom of the box body.
On the other hand, the invention provides a using method of a device for detecting the flame retardant property of a fireproof material of an outer wall of a house, which comprises the following steps:
s1, opening a box door at the front side of a box body, horizontally fixing the fireproof material of the outer wall of the house by a clamping assembly, enabling the right end of the fireproof material of the outer wall of the house to be a free end, and closing the box door;
s2, adjusting the height of the sliding plate a through the lifting assembly, and controlling the power assembly through the control panel to change the ignition point position;
s3, igniting, controlling ignition time through a control panel, observing combustion conditions, opening a box door, and taking down a fireproof material of an outer wall of a house to obtain the flame retardant property of the fireproof material;
s4, replacing the fireproof material of the outer wall of the house made of the same material, limiting the rotation of the sector plate by contact, rotating the sector plate by ninety degrees clockwise to adjust the fireproof material of the outer wall of the house to be in a vertical state, and fixing the position of the sector plate;
s5, the height of the sliding plate a is adjusted through the lifting assembly, the power assembly is controlled through the control panel to change the ignition point position, the ignition is carried out, the ignition time is controlled, the combustion condition is observed, the box door is opened, the fireproof material of the outer wall of the house is taken down, and the flame retardant property of the fireproof material is obtained.
Compared with the prior art, the invention has the following beneficial technical effects: the level and the vertical state of house outer wall fire-proof material can be adjusted through the rotation to the sector plate, and the vertical position is adjusted to reunion lifting unit, and power component adjustment ignition point horizontal position realizes that house outer wall fire-proof material fire behavior's horizontal method detects and the vertical method detects, and the detection mode is various, and the contrast of being convenient for improves the accuracy that fire behaviour detected.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of FIG. 1;
fig. 3 is an enlarged schematic view of a point a in fig. 1.
Reference numerals: 1. a box body; 2. a sliding plate a; 3. a screw a; 4. a knob; 5. a support bar; 6. a sector plate; 7. a limiting plate; 8. a U-shaped plate; 9. locking the bolt; 10. a fixed block; 11. a splint a; 12. a clamping plate b; 13. a nut; 14. a bolt; 15. fireproof materials for the outer wall of the house; 16. receiving a plate; 17. a control box; 18. a combustion device; 19. a hose; 20. supporting a tube; 21. an ignition device; 22. a guide cylinder; 23. a sliding plate b; 24. a screw b; 25. a motor; 26. and a controller.
Detailed Description
Example one
As shown in fig. 1-3, the device for detecting the flame retardant property of the fireproof material of the exterior wall of the house provided by the invention comprises a box body 1, a sliding plate a2, a supporting rod 5, a fixing block 10, the fireproof material 15 of the exterior wall of the house, a control box 17, a combustion device 18, a supporting pipe 20 and a controller 26;
a sliding plate a2 is arranged on the inner wall of the rear side of the box body 1 in a sliding manner along the vertical direction, and a lifting assembly for driving the sliding plate a2 to move up and down is arranged on the box body 1; the support rod 5 is horizontally and rotatably arranged on the front surface of the sliding plate a2, the sector plate 6 is arranged on the support rod 5, and the sliding plate a2 is provided with a limiting assembly for limiting the position of the sector plate 6; the fixed block 10 is arranged on the front surface of the sector plate 6, the fixed block 10 is positioned at the arc bottom of the sector plate 6, a clamping component for fixing the fireproof material 15 of the outer wall of the house is arranged on the end surface of the fixed block 10 facing the supporting rod 5, and the fireproof material 15 of the outer wall of the house is in a horizontal state; the inner wall of the bottom of the box body 1 is provided with a receiving disc 16.
The control box 17 is arranged on the right side surface of the box body 1, a combustion device 18 is arranged in the control box 17, the combustion device 18 is connected with a support pipe 20 through a hose 19, the support pipe 20 is arranged on the right side wall of the box body 1 in a sliding mode along the transverse direction, an ignition device 21 is arranged at the left end of the support pipe 20, a power component for driving the support pipe 20 to move is arranged in the control box 17, a guide cylinder 22 is arranged on the inner wall of the right side of the box body 1, and the support pipe 20 penetrates through the guide cylinder 22 in a matching mode; the controller 26 is arranged in the control box 17, the controller 26 is in control connection with the combustion device 18, the power assembly and the ignition device 21, a control panel is arranged on the outer wall of the control box 17, and the control panel is electrically connected with the controller 26.
The working principle is as follows: opening a front door of the box body 1, horizontally fixing the house outer wall fireproof material 15 through a clamping component, wherein the right end of the house outer wall fireproof material 15 is a free end, closing the door, then adjusting the height of a sliding plate a2 through a lifting component, controlling a power component to change the ignition point position through a control panel, adjusting the position and then igniting, controlling the ignition time through the control panel, observing the combustion condition, opening the door, taking down the house outer wall fireproof material 15, obtaining the flame retardant property of the house outer wall fireproof material, replacing the house outer wall fireproof material 15 made of the same material, contacting the rotation limitation of the sector plate 6, clockwise rotating the sector plate 6 by ninety degrees, adjusting the house outer wall fireproof material 15 to be in a vertical state, then fixing the position of the sector plate 6, finally adjusting the height of the sliding plate a2 through the lifting component, controlling the power component through the control panel to change the ignition point position, igniting, controlling the ignition time, observing the combustion condition, opening the door, taking down the house outer wall fireproof material 15, and obtaining the flame retardant property of the house outer wall.
In this embodiment, can adjust house outer wall fireproof material 15's level and vertical state through the rotation to sector plate 6, combine lifting unit to adjust vertical position again, power component adjustment ignition point horizontal position realizes that house outer wall fireproof material 15 fire behavior's horizontal method detects and the vertical method detects, and the detection mode is various, and the contrast of being convenient for improves the accuracy that fire behavior detected.
Example two
As shown in fig. 1, compared with the first embodiment, the flame retardant performance detecting device for the fireproof material of the exterior wall of the house provided by the invention comprises a lifting assembly and a fixing assembly, wherein the lifting assembly comprises a screw a3 and a knob 4; a threaded hole a is vertically formed in the sliding plate a2, a screw a3 is vertically and rotatably arranged on the inner wall of the bottom of the box body 1, the top of the screw a3 penetrates through the threaded hole a and the top of the box body 1, and the screw a3 is matched with the threaded hole a; the knob 4 is disposed on top of the screw a 3. The upper and lower height of the sliding plate a2 can be adjusted by rotating the knob 4 to drive the screw a3 to rotate, so that the position of the fireproof material 15 on the outer wall of the house in the vertical direction is changed, and the distance between the fireproof material and flame can be conveniently adjusted.
As shown in fig. 2, the limiting assembly comprises a limiting plate 7, a U-shaped plate 8 and a locking bolt 9; two groups of limiting plates 7 are arranged, and the two groups of limiting plates 7 are respectively arranged on two circular-arc end surfaces of the sector plate 6; the U-shaped plates 8 are arranged on the front surface of the sliding plate a2, openings of U-shaped grooves in the U-shaped plates 8 are upward, the U-shaped plates 8 are arranged in two groups, the two groups of U-shaped plates 8 are symmetrical relative to the supporting rod 5, and one group of limiting plates 7 is inserted into one group of U-shaped plates 8 in a matched mode; the locking bolts 9 penetrate through threaded holes in the U-shaped plate 8 and are in contact with the limiting plate 7, and two groups of locking bolts 9 are arranged. Locking limiting plate 7 through locking bolt 9 can be fixed sector plate 6 to carry out the rigidity to house outer wall fire-proof material 15, easy operation is convenient.
As shown in fig. 3, the clamping assembly includes a clamping plate a11, a clamping plate b12, a nut 13 and a bolt 14; the clamping plate a11 is horizontally arranged on the right side surface of the fixing block 10; the clamping plate b12 is arranged on the right side face of the fixing block 10 in a sliding mode in the vertical direction, the clamping plate b12 is located above the clamping plate a11, the fireproof material 15 of the outer wall of the house is located between the clamping plate a11 and the clamping plate b12, and the clamping plate a11 and the clamping plate b12 are provided with opposite through holes; bolts 14 pass through the two sets of through holes and are locked with nuts 13. Place house outer wall fireproof material 15 one end on splint a11, then swivel nut 13 drives splint b12 and descends, can press from both sides house outer wall fireproof material 15 tightly through splint a11 and splint b12, simple structure, convenient to use.
As shown in fig. 2, the power assembly includes a slide plate b23, a screw b24, and a motor 25; the sliding plate b23 is arranged on the inner wall of the control box 17 in a transverse sliding manner, the sliding plate b23 is connected with the supporting pipe 20, and a threaded hole b is transversely arranged on the sliding plate b 23; the motor 25 is arranged on the inner wall of the right side of the control box 17, an output shaft of the motor 25 is connected with the screw b24, and the screw b24 is matched with the threaded hole b. The motor 25 drives the screw b24 to rotate, and the screw b24 drives the sliding plate b23 to move through matching with the threaded hole b, so that the position of the ignition point is changed.
EXAMPLE III
The use method of the embodiment of the device for detecting the flame retardant property of the fireproof material of the outer wall of the house comprises the following steps:
s1, opening a front side box door of a box body 1, horizontally fixing the house outer wall fireproof material 15 through a clamping component, taking the right end of the house outer wall fireproof material 15 as a free end, and closing the box door;
s2, adjusting the height of the sliding plate a2 through the lifting assembly, and controlling the power assembly through the control panel to change the ignition point position;
s3, igniting, controlling ignition time through a control panel, observing combustion conditions, opening a box door, and taking down the fireproof material 15 of the outer wall of the house to obtain the flame retardant property of the fireproof material;
s4, replacing the fireproof material 15 for the outer wall of the house made of the same material, limiting the rotation of the sector plate 6 in a contact manner, rotating the sector plate 6 clockwise by ninety degrees, adjusting the fireproof material 15 for the outer wall of the house to be in a vertical state, and fixing the position of the sector plate 6;
s5, the height of the sliding plate a2 is adjusted through the lifting assembly, the power assembly is controlled through the control panel to change the ignition point position, ignition is conducted, the ignition time is controlled, the combustion condition is observed, the box door is opened, the house outer wall fireproof material 15 is taken down, and the flame retardant property of the house outer wall fireproof material is obtained.
In this embodiment, can adjust the level and the vertical state of house outer wall fire resistive material 15 through the rotation to sector plate 6, combine lifting unit to adjust vertical position again, power component adjusts the horizontal position of ignition point, realizes that the horizontal method of 15 fire behaviour of house outer wall fire resistive material detects and the vertical method detects, and detection mode is various, and the contrast of being convenient for improves the accuracy that fire behaviour detected.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A device for detecting the flame retardant property of a fireproof material of an outer wall of a house is characterized by comprising a box body (1), a sliding plate a (2), a supporting rod (5), a fixing block (10), a fireproof material (15) of the outer wall of the house, a control box (17), a combustion device (18), a supporting pipe (20) and a controller (26);
a sliding plate a (2) is arranged on the inner wall of the rear side of the box body (1) in a sliding mode along the vertical direction, and a lifting assembly for driving the sliding plate a (2) to move up and down is arranged on the box body (1); the supporting rod (5) is horizontally and rotatably arranged on the front surface of the sliding plate a (2), the supporting rod (5) is provided with a sector plate (6), and the sliding plate a (2) is provided with a limiting assembly for limiting the position of the sector plate (6); the fixing block (10) is arranged on the front surface of the sector plate (6), the fixing block (10) is positioned at the arc bottom of the sector plate (6), a clamping assembly used for fixing a fireproof material (15) of an outer wall of a house is arranged on the end surface, facing the supporting rod (5), of the fixing block (10), and the fireproof material (15) of the outer wall of the house is in a horizontal state;
the control box (17) is arranged on the right side surface of the box body (1), a combustion device (18) is arranged in the control box (17), the combustion device (18) is connected with a supporting pipe (20) through a hose (19), the supporting pipe (20) is arranged on the right side wall of the box body (1) in a transverse sliding mode, an ignition device (21) is arranged at the left end of the supporting pipe (20), and a power component for driving the supporting pipe (20) to move is arranged in the control box (17); the controller (26) is arranged in the control box (17), the controller (26) is in control connection with the combustion device (18), the power assembly and the ignition device (21), a control panel is arranged on the outer wall of the control box (17), and the control panel is electrically connected with the controller (26).
2. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house according to claim 1, wherein the lifting assembly comprises a screw a (3) and a knob (4); a threaded hole a is vertically formed in the sliding plate a (2), a screw a (3) is vertically and rotatably arranged on the inner wall of the bottom of the box body (1), the top of the screw a (3) penetrates through the threaded hole a and the top of the box body (1), and the screw a (3) is matched with the threaded hole a; the knob (4) is arranged on the top of the screw a (3).
3. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house according to claim 1, wherein the limiting component comprises a limiting plate (7), a U-shaped plate (8) and a locking bolt (9); two groups of limiting plates (7) are arranged, and the two groups of limiting plates (7) are respectively arranged on two circular end faces of the sector plate (6); the U-shaped plates (8) are arranged on the front surface of the sliding plate a (2), openings of U-shaped grooves in the U-shaped plates (8) are upward, the U-shaped plates (8) are arranged in two groups, the two groups of U-shaped plates (8) are symmetrical relative to the supporting rod (5), and one group of limiting plates (7) is inserted into one group of U-shaped plates (8) in a matched mode; the locking bolts (9) penetrate through threaded holes in the U-shaped plate (8) and are in contact with the limiting plate (7), and the locking bolts (9) are arranged in two groups.
4. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house according to claim 1, wherein the clamping assembly comprises a clamping plate a (11), a clamping plate b (12), a nut (13) and a bolt (14); the clamping plate a (11) is horizontally arranged on the right side surface of the fixing block (10); the clamping plate b (12) is arranged on the right side face of the fixing block (10) in a sliding mode along the vertical direction, the clamping plate b (12) is located above the clamping plate a (11), the fireproof material (15) of the outer wall of the house is located between the clamping plate a (11) and the clamping plate b (12), and the clamping plate a (11) and the clamping plate b (12) are provided with opposite through holes; bolts (14) pass through the two groups of through holes and are locked by nuts (13).
5. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house according to claim 1, wherein the power assembly comprises a sliding plate b (23), a screw b (24) and a motor (25); the sliding plate b (23) is arranged on the inner wall of the control box (17) in a sliding mode along the transverse direction, the sliding plate b (23) is connected with the supporting pipe (20), and a threaded hole b is formed in the sliding plate b (23) in the transverse direction; the motor (25) is arranged on the inner wall of the right side of the control box (17), an output shaft of the motor (25) is connected with the screw b (24), and the screw b (24) is matched with the threaded hole b.
6. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house according to claim 1, wherein a guide cylinder (22) is arranged on the inner wall of the right side of the box body (1), and the support pipe (20) is matched and penetrates through the guide cylinder (22).
7. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house according to claim 1, wherein a receiving disc (16) is placed on the inner wall of the bottom of the box body (1).
8. The device for detecting the flame retardant property of the fireproof material of the outer wall of the house as claimed in claim 1, wherein the using method of the device comprises the following steps:
s1, opening a front side box door of a box body (1), horizontally fixing the fireproof material (15) of the outer wall of the house through a clamping component, taking the right end of the fireproof material (15) of the outer wall of the house as a free end, and closing the box door;
s2, adjusting the height of the sliding plate a (2) through the lifting assembly, and controlling the power assembly to change the ignition point position through the control panel;
s3, igniting, controlling ignition time through a control panel, observing combustion conditions, opening a box door, and taking down a fireproof material (15) of an outer wall of the house to obtain the flame retardant property of the fireproof material;
s4, replacing the fireproof material (15) of the outer wall of the house made of the same material, limiting the rotation of the sector plate (6) by contact, rotating the sector plate (6) by ninety degrees clockwise to adjust the fireproof material (15) of the outer wall of the house to be in a vertical state, and fixing the position of the sector plate (6);
s5, adjusting the height of the sliding plate a (2) through the lifting assembly, controlling the power assembly through the control panel to change the ignition point position, igniting, controlling the ignition time, observing the combustion condition, opening the box door, taking down the fireproof material (15) of the outer wall of the house, and obtaining the flame retardant property of the fireproof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147451.9A CN115436560A (en) | 2022-09-19 | 2022-09-19 | House outer wall fire-retardant material fire behaviour detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147451.9A CN115436560A (en) | 2022-09-19 | 2022-09-19 | House outer wall fire-retardant material fire behaviour detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115436560A true CN115436560A (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211147451.9A Pending CN115436560A (en) | 2022-09-19 | 2022-09-19 | House outer wall fire-retardant material fire behaviour detection device |
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| Country | Link |
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| CN (1) | CN115436560A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117030923A (en) * | 2023-10-08 | 2023-11-10 | 飞马新材料(山东)股份有限公司 | Fire-retardant performance detection device of fire-proof clothing material |
-
2022
- 2022-09-19 CN CN202211147451.9A patent/CN115436560A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117030923A (en) * | 2023-10-08 | 2023-11-10 | 飞马新材料(山东)股份有限公司 | Fire-retardant performance detection device of fire-proof clothing material |
| CN117030923B (en) * | 2023-10-08 | 2023-12-15 | 飞马新材料(山东)股份有限公司 | Fire-retardant performance detection device of fire-proof clothing material |
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