Device for testing flame retardant property of operating passenger car interior material

Abstract

The utility model discloses an operating passenger car interior material flame retardant performance test device, which comprises a test box, the front side of the test box is hinged with a box door, the top wall of the test box is rotatably provided with a rotating rod through a bearing, the rotating rod is provided with three mounting seats, the three mounting seats are fixedly welded with mounting rods, and the mounting rods are fixedly connected with the box door. The three mounting rods are annularly distributed at equal intervals, clamping seats are fixedly welded to the mounting rods, first studs are in threaded connection with the top walls of the clamping seats, clamping plates are rotatably mounted at the bottom ends of the first studs, and fixing seats are fixedly mounted on the bottom wall of the test box. According to the utility model, the rotating rod arranged on the test box can drive the three clamping seats arranged at different heights to sequentially rotate to a position right above the flame nozzle so as to test thermal deformation and combustion conditions of the interior material when the interior material is away from a fire source by different distances; the operation is simpler during the test, the replacement of the interior material and the adjustment of the distance from the fire source are not needed, and the working efficiency of the test is improved.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant performance testing technology for passenger vehicle interior materials, specifically a flame retardant performance testing device for interior materials of operating passenger vehicles. Background Technology

[0002] After production, bus interior materials need to undergo a series of tests before being put on the market. One of these tests is the flame retardancy test, which is used to assess the fire hazard of the product. This requires the use of a flame retardancy testing device.

[0003] Currently, flame retardant performance tests typically require examining the heat deformation and combustion of interior materials at different locations away from the fire source. However, existing flame retardant performance testing devices require removing the interior material from the fixture and installing a new one after testing one location, and then adjusting the distance between the fixture and the fire source. This process is cumbersome and inefficient. To address these issues, we propose a flame retardant performance testing device for interior materials of commercial buses. Utility Model Content

[0004] The purpose of this invention is to provide a flame retardant performance testing device for interior materials of operating buses, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a testing device for the flame retardant performance of interior materials for operating passenger vehicles, comprising:

[0006] The test chamber has a hinged door on its front side. A rotating rod is rotatably mounted on the top wall of the test chamber via a bearing. Three mounting seats are provided on the rotating rod, and mounting rods are fixedly welded to each of the three mounting seats. The three mounting rods are distributed in a ring at equal intervals. Clamping seats are fixedly welded to the mounting rods. A first stud is threadedly connected to the top wall of the clamping seat. A clamping plate is rotatably mounted on the bottom end of the first stud. A fixing seat is fixedly mounted on the bottom wall of the test chamber, and a flame nozzle is mounted on the fixing seat. A smoke extraction port is opened on the top wall of the test chamber, and a smoke hood is fixedly mounted on the smoke extraction port. A smoke guide pipe is fixedly mounted on the smoke hood and is fixedly installed on an external smoke extraction device. A ventilation opening is opened on the rear side wall of the test chamber.

[0007] Preferably, all three mounting seats are movably sleeved on the rotating rod, the rotating rod has a positioning groove, a positioning block is fixedly welded to the inner wall of the mounting seat, the positioning block is slidably connected in the positioning groove, and a second stud is threadedly connected to the mounting seat.

[0008] Preferably, a handwheel is fixedly installed at the top of the rotating rod, and a limiting plate is fixedly welded to the surface of the rotating rod above the top wall of the test chamber. The limiting plate has three annularly distributed slots.

[0009] Preferably, a base is fixedly welded to the top wall of the test chamber, and a plug rod is slidably connected to the base through an opening. The plug rod is adapted to the slot, and a pull plate is fixedly welded to the front end of the plug rod. A spring is sleeved on the plug rod, and the two ends of the spring are fixedly connected to the base and the pull plate, respectively.

[0010] Preferably, the door is fitted with transparent explosion-proof glass.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a rotating rod on the test chamber to drive three clamping seats set at different heights to rotate sequentially to directly above the flame nozzle to test the heat deformation and combustion of interior materials at different distances from the flame source. The rotating rod is fixed by inserting a rod into the slot of the limiting plate, which ensures the stability of the rotating rod. This makes the operation simpler during the test, eliminating the need to change interior materials and adjust the distance from the flame source, thus improving the efficiency of the test.

[0013] 2. The mounting base of this utility model can slide on the rotating rod to adjust the distance between the clamping base and the flame nozzle, and is locked by the second stud. This allows the height of the clamping base to be adjusted as needed during use, making it more convenient to use and improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a flame-retardant performance testing device for interior materials of operating passenger vehicles proposed in this utility model;

[0015] Figure 2 This is a side view of the cross-sectional structure of the test chamber in a flame-retardant performance testing device for interior materials of operating buses proposed in this utility model;

[0016] Figure 3 This utility model proposes a flame retardant performance testing device for interior materials of operating passenger vehicles. Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This utility model proposes a flame retardant performance testing device for interior materials of operating passenger vehicles. Figure 2 Enlarged structural diagram at point B in the middle.

[0018] In the diagram: 1. Test chamber; 2. Chamber door; 3. Rotating rod; 4. Mounting base; 5. Mounting rod; 6. Clamping base; 7. First stud; 8. Clamping plate; 9. Fixing base; 10. Flame nozzle; 11. Smoke extraction port; 12. Smoke hood; 13. Smoke guide pipe; 14. Positioning groove; 15. Positioning block; 16. Second stud; 17. Handwheel; 18. Limiting plate; 19. Slot; 20. Base; 21. Insert rod; 22. Pull plate; 23. Spring; 24. Transparent explosion-proof glass. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a flame retardant performance testing device for interior materials of operating passenger vehicles, comprising:

[0021] The test chamber 1 has a door 2 hinged to its front side. A rotating rod 3 is rotatably mounted on the top wall of the test chamber 1 via a bearing. Three mounting seats 4 are provided on the rotating rod 3, and mounting rods 5 are fixedly welded to each of the three mounting seats 4. The three mounting rods 5 are distributed in a ring at equal intervals. A clamping seat 6 is fixedly welded to the mounting rod 5. A first stud 7 is threadedly connected to the top wall of the clamping seat 6. A clamping plate 8 is rotatably mounted on the bottom end of the first stud 7. A fixing seat 9 is fixedly mounted on the bottom wall of the test chamber 1. A flame nozzle 10 is mounted on the fixing seat 9. A smoke extraction port 11 is opened on the top wall of the test chamber 1. A smoke hood 12 is fixedly mounted on the smoke extraction port 11. A smoke guide pipe 13 is fixedly mounted on the smoke hood 12. The smoke guide pipe 13 is fixedly mounted on an external smoke extraction device. A ventilation opening is opened on the rear side wall of the test chamber 1.

[0022] All three mounting seats 4 are movably sleeved on the rotating rod 3. The rotating rod 3 has a positioning groove 14. A positioning block 15 is fixedly welded to the inner wall of the mounting seat 4. The positioning block 15 is slidably connected in the positioning groove 14. A second stud 16 is threadedly connected to the mounting seat 4. By slidingly engaging the positioning block 15 with the positioning groove 14, the mounting seat 4 can be prevented from deflecting. The second stud 16 can be pressed against the surface of the rotating rod 3, thereby limiting and fixing the mounting seat 4 on the rotating rod 3.

[0023] A handwheel 17 is fixedly installed at the top of the rotating rod 3. A limiting plate 18 is fixedly welded to the surface of the rotating rod 3 above the top wall of the test chamber 1. Three annularly distributed slots 19 are provided on the limiting plate 18.

[0024] A base 20 is fixedly welded to the top wall of the test chamber 1. A rod 21 is slidably connected to the base 20 through a through hole. The rod 21 is adapted to the slot 19. A pull plate 22 is fixedly welded to the front end of the rod 21. A spring 23 is sleeved on the rod 21. The two ends of the spring 23 are fixedly connected to the base 20 and the pull plate 22 respectively. The rod 21 can be movably inserted into the slot 19 at the corresponding position, thereby limiting and fixing the limiting plate 18, and locking the rotating rod 3.

[0025] The chamber door 2 is equipped with transparent explosion-proof glass 24, which facilitates observation of the internal cavity of the test chamber 1.

[0026] Working principle: When using this utility model, the three interior materials are first clamped and fixed on the three clamping seats 6 respectively. Then, the door 2 is closed, and the flame nozzle 10 is ignited to burn the bottom interior material to test its flame retardancy. After the test is completed, the rotating rod 3 can be rotated to rotate the middle interior material to directly above the flame nozzle 10 to test the flame retardancy of the interior material at this distance. Then, the above steps are repeated to test the flame retardancy of the highest interior material, thereby testing the heat deformation and combustion of the interior material at different distances from the fire source.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the flame retardant properties of interior materials for passenger vehicles, characterized in that, Include: Test box (1), the front side of the test box (1) is hinged with a box door (2), a rotating shaft (3) is rotatably installed on the top wall of the test box (1) through a bearing, three mounting seats (4) are arranged on the rotating shaft (3), three mounting rods (5) are fixedly welded on the three mounting seats (4), the three mounting rods (5) are annularly and equidistantly distributed, a clamping seat (6) is fixedly welded on the mounting rod (5), a first stud (7) is threadedly connected to the top wall of the clamping seat (6), a clamping plate (8) is rotatably installed at the bottom end of the first stud (7), a fixing seat (9) is fixedly installed on the bottom wall of the test box (1), a flame nozzle (10) is installed on the fixing seat (9), a smoke extraction port (11) is formed in the top wall of the test box (1), a smoke hood (12) is fixedly installed on the smoke extraction port (11), a smoke guide pipe (13) is fixedly installed on the smoke hood (12), the smoke guide pipe (13) is fixedly installed on an external smoke extraction device, and a ventilation port is formed in the rear wall of the test box (1).

2. The device for testing the flame retardant performance of an interior material of a commercial vehicle according to claim 1, characterized in that: Three mounting seats (4) are movably sleeved on the rotating shaft (3), a positioning groove (14) is formed in the rotating shaft (3), a positioning block (15) is fixedly welded on the inner wall of the mounting seat (4), the positioning block (15) is slidably connected in the positioning groove (14), and a second stud (16) is threadedly connected to the mounting seat (4).

3. The device for testing the flame retardant performance of an interior material of a commercial vehicle according to claim 1, characterized in that: A hand wheel (17) is fixedly installed at the top end of the rotating shaft (3), a limiting disc (18) is fixedly welded on the surface of the rotating shaft (3) above the top wall of the test box (1), and three annularly and equidistantly distributed insertion grooves (19) are formed in the limiting disc (18).

4. The device for testing the flame retardant performance of an interior material of a commercial vehicle according to claim 3, characterized in that: A base (20) is fixedly welded on the top wall of the test box (1), an insertion rod (21) is slidably connected to the base (20) through a through hole, the insertion rod (21) is matched with the insertion groove (19), a pull plate (22) is fixedly welded at the front end of the insertion rod (21), a spring (23) is sleeved on the insertion rod (21), and the two ends of the spring (23) are fixedly connected with the base (20) and the pull plate (22).

5. The device for testing the flame retardant performance of an interior material of a commercial vehicle according to claim 1, characterized in that: A transparent explosion-proof glass (24) is installed on the box door (2).

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