Testing device for detecting flame retardance of flame-retardant PVC (polyvinyl chloride) sheath material

Abstract

The utility model discloses a testing device for detecting the flame retardance of a flame-retardant PVC (polyvinyl chloride) sheath material, which comprises a detection table, a flaming device is mounted at the top of the detection table, a flaming tube is mounted on the left side of the flaming device, a testing box is mounted at the top of the detection table, and a stripping mechanism is arranged on the inner wall of the testing box. An exhaust mechanism is mounted at the top of the test box, and a fixing mechanism is arranged in the detection table. According to the testing device for detecting the flame retardance of the flame-retardant PVC sheath material, the fixing mechanism is arranged, under the driving of the driving motor, the fixing rods and the stripping blocks on the two sides synchronously slide towards the opposite sides, and the flame-retardant PVC sheath materials of different sizes are rapidly fixed through the fixing rods and the stripping blocks, so that the flame retardance of the flame-retardant PVC sheath material is detected. The stability of the flame-retardant PVC sheath material in the subsequent flame retardance test process is kept, and the detection quality of the flame-retardant PVC sheath material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardancy detection, in particular to a test device for detecting the flame retardancy of flame retardant PVC sheath materials. Background Technique

[0002] Refer to the patent name: A test device for detecting the flame retardancy of plastics (patent publication number: CN219957490U, patent publication date: November 3, 2023), including: a placement box; an absorption tube is fixedly connected to the top of the placement box, one end of the absorption tube is threadedly connected to a treatment tube, the end of the absorption tube away from the treatment tube penetrates into the placement box, a non-woven filter element and an activated carbon filter element are respectively fixedly connected in the pipeline of the treatment tube, one end of the treatment tube is threadedly connected to a collar, one end of the collar is rotatably connected to a connector, one end of the connector is fixedly connected to a hose, one end of the hose is fixedly connected to a fan, a support plate is fixedly connected to the outer wall of the placement box, and the fan is fixedly connected to the top of the support plate. This device can filter the toxic gases generated by the test, greatly reducing the harm of the toxic gases generated by the test to the staff.

[0003] However, when implementing the above technical solutions, there are the following problems: The above technical solutions can filter the toxic gases generated by the test, greatly reducing the harm of the toxic gases generated by the test to the staff, but the above technical solutions lack a fixing structure for the test items. When testing the flame retardant PVC sheath material, if the flame retardant PVC sheath material is not fixed first and directly placed on the placement tray, the flame retardant PVC sheath material will shake during the subsequent flame retardancy test and is likely to fall out of the placement tray, affecting the final detection effect. Therefore, the utility model provides a test device for detecting the flame retardancy of flame retardant PVC sheath materials. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a test device for detecting the flame retardancy of flame retardant PVC sheath materials, which solves the problem that the existing test device lacks a fixing structure for the test items and is not convenient for clamping and fixing flame retardant PVC sheath materials of different sizes.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A test device for detecting the flame retardancy of flame retardant PVC sheath materials, including a detection table, a flame spraying device is installed on the top of the detection table, a flame spraying pipe is installed on the left side of the flame spraying device, a test box is installed on the top of the detection table, a material discharging mechanism is arranged on the inner wall of the test box, an exhaust mechanism is installed on the top of the test box, and a fixing mechanism is arranged inside the detection table. The fixing mechanism includes:

[0006] Fixing components, including a rotating disk rotatably installed at the top of the inner cavity of the testing table. A rotating rod is rotatably connected to the bottom of the rotating disk. One end of the rotating rod enables a fixing rod to slide through a transmission component. The surface of the fixing rod is slidably connected to the inside of the testing box. Symmetric limiting strips are installed on the surface of the fixing rod.

[0007] Driving components are arranged at the bottom of the testing table.

[0008] Preferably, in the transmission component, a limiting rod installed on the inner wall of the testing table is provided. A transmission plate is slidably connected to the surface of the limiting rod. One side of the transmission plate is rotatably connected to one end of the rotating rod. A transmission rod is fixedly connected to the top of the transmission plate. The top end of the transmission rod is fixedly connected to one end of the fixing rod.

[0009] Preferably, symmetric sliding grooves are formed at the top of the testing table. The inner surface of the sliding groove is slidably connected to the surface of the transmission rod.

[0010] Preferably, in the driving component, a driving motor installed at the bottom of the testing table is provided. One end of the output shaft of the driving motor is fixedly connected to a driving rod through a coupling. The top end of the driving rod is fixedly connected to the bottom of the rotating disk.

[0011] Preferably, in the blanking mechanism, a blanking column installed on the inner wall of the testing box is provided. A blanking rod is slidably connected to the inside of the blanking column. One end of the blanking rod is fixedly connected to a return spring. The other end of the return spring is fixedly connected to the inner wall of the blanking column. The other end of the blanking rod is fixedly connected to a blanking block. The inside of the blanking block is slidably connected to the surface of the fixing rod.

[0012] Preferably, in the exhaust mechanism, a blower installed at the top of the testing box is provided. An air extraction pipe is fixedly connected to the front end of the blower. One end of the air extraction pipe penetrates and extends into the inside of the testing box. A guide pipe is fixedly connected to the rear end of the blower.

[0013] Beneficial effects

[0014] The utility model provides a testing device for detecting the flame retardancy of flame-retardant PVC sheath materials. Compared with the prior art, the following beneficial effects are achieved:

[0015] (1) The test device for detecting the flame retardancy of flame retardant PVC sheath material starts a driving motor to drive the driving rod and the rotating disk to rotate. The rotation of the rotating disk causes one end of the rotating rod to rotate at the bottom of the rotating disk, and the other end of the rotating rod to rotate on one side of the transmission plate, thereby causing the transmission plate to slide on the surface of the limit rod. The sliding of the transmission plate causes the transmission rods, the fixed rods and the limit strips on both sides to slide synchronously to the opposite sides. When the fixed rod slides, one end of the limit strip contacts the outer side of the stripping block, thereby pushing the stripping block and the stripping rod to slide synchronously. The stripping rod is inside the stripping column. The fixing rods on both sides slide to stretch the reset spring, and after being inserted into the flame-retardant PVC sheath material, the fixing rods on both sides resist the flame-retardant PVC sheath material through the stripping block, so as to keep the flame-retardant PVC sheath material clamped and fixed. By providing a fixing mechanism, the fixing rods and the stripping block on both sides slide to the opposite side synchronously under the drive of the driving motor, and the flame-retardant PVC sheath materials of different sizes can be quickly fixed by the fixing rods and the stripping block, so as to maintain the stability of the flame-retardant PVC sheath material in the subsequent flame retardancy test process and improve the detection quality of the flame-retardant PVC sheath material.

[0016] (2) The testing device for detecting the flame retardancy of the flame retardant PVC sheath material is provided with a stripping mechanism, which uses a stripping block to squeeze out the flame retardant PVC sheath material adhering to the surface of the fixed rod and collects it through a collecting box, thereby realizing a rapid stripping operation of the flame retardant PVC sheath material and avoiding affecting subsequent testing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the external structure of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the testing platform of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of the stripping mechanism of the utility model.

[0021] In the figure: 1-testing table, 2-flame spraying device, 3-flame spraying tube, 4-test box, 5-stripping mechanism, 51-stripping column, 52-stripping rod, 53-reset spring, 54-stripping block, 6-exhaust mechanism, 61-fan, 62-exhaust pipe, 63-air guide pipe, 7-fixing mechanism, 71-fixing assembly, 711-rotating disk, 712-rotating rod, 713-fixing rod, 714-limiting bar, 72-driving assembly, 721-driving motor, 722-driving rod, 8-transmission assembly, 81-limiting rod, 82-transmission plate, 83-transmission rod, 9-sliding groove. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides two technical solutions:

[0024] Embodiment 1

[0025] A test device for detecting the flame retardancy of flame-retardant PVC sheath material, including a detection table 1, a flame spraying device 2 is installed on the top of the detection table 1, a flame spraying pipe 3 is installed on the left side of the flame spraying device 2, one end of the flame spraying pipe 3 penetrates and extends into the interior of the test box 4, a test box 4 is installed on the top of the detection table 1, a material discharging mechanism 5 is provided on the inner wall of the test box 4, an exhaust mechanism 6 is installed on the top of the test box 4, and a fixing mechanism 7 is provided inside the detection table 1. The fixing mechanism 7 includes:

[0026] A fixing component 71, including a rotating disk 711 rotatably installed on the top of the inner cavity of the detection table 1, a rotating rod 712 is rotatably connected to the bottom of the rotating disk 711, one end of the rotating rod 712 slides the fixing rod 713 through a transmission component 8, the surface of the fixing rod 713 is slidably connected to the interior of the test box 4, and symmetric limiting strips 714 are installed on the surface of the fixing rod 713, and the limiting strips 714 slide inside the test box 4;

[0027] The driving component 72 is arranged at the bottom of the detection table 1. The transmission component 8 includes a limiting rod 81 installed on the inner wall of the detection table 1. A transmission plate 82 is slidably connected to the surface of the limiting rod 81. The limiting rod 81 is used to limit the transmission plate 82. One side of the transmission plate 82 is rotatably connected to one end of a rotating rod 712. A transmission rod 83 is fixedly connected to the top of the transmission plate 82. The top end of the transmission rod 83 is fixedly connected to one end of a fixed rod 713. Symmetric sliding grooves 9 are formed in the top of the detection table 1. The sliding grooves 9 are used to limit the transmission rod 83. The inner surface of the sliding groove 9 is slidably connected to the surface of the transmission rod 83. The driving component 72 includes a driving motor 721 installed at the bottom of the detection table 1. The driving motor 721 is a three-phase asynchronous motor and is connected to an external circuit through a wire. One end of the output shaft of the driving motor 721 is fixedly connected to a driving rod 722 through a coupling. The driving rod 722 rotates inside the detection table 1. The top end of the driving rod 722 is fixedly connected to the bottom of a rotating disk 711. By starting the driving motor 721, the driving rod 722 and the rotating disk 711 are driven to rotate. The rotation of the rotating disk 711 causes one end of the rotating rod 712 to rotate at the bottom of the rotating disk 711, and the other end of the rotating rod 712 to rotate on one side of the transmission plate 82. Further, the transmission plate 82 slides on the surface of the limiting rod 81. The sliding of the transmission plate 82 causes the transmission rods 83, the fixed rods 713, and the limiting strips 714 on both sides to slide synchronously towards the opposite sides. When the fixed rod 713 slides, since one end of the limiting strip 714 contacts the outer side of the stripping block 54, the stripping block 54 and the stripping rod 52 are pushed to slide synchronously. The stripping rod 52 slides inside the stripping column 51, causing the return spring 53 to be stretched. After the fixed rods 713 on both sides are inserted into the interior of the flame-retardant PVC sheath material, the stripping block 54 abuts against the flame-retardant PVC sheath material to hold the flame-retardant PVC sheath material clamped and fixed. By providing the fixing mechanism 7, driven by the driving motor 721, the fixed rods 713 and the stripping blocks 54 on both sides slide synchronously towards the opposite sides, and the fixed rods 713 and the stripping blocks 54 are used to quickly fix flame-retardant PVC sheath materials of different sizes, maintaining the stability of the flame-retardant PVC sheath material during subsequent flame-retardant property tests and improving the detection quality of the flame-retardant PVC sheath material.

[0028] Embodiment 2

[0029] The main difference from Embodiment 1 is that:

[0030] A test device for detecting the flame retardancy of flame-retardant PVC sheath material. In the material discharging mechanism 5, there is a material discharging column 51 installed on the inner wall of the test box 4. A material discharging rod 52 is slidably connected inside the material discharging column 51. One end of the material discharging rod 52 is fixedly connected with a return spring 53, and the other end of the return spring 53 is fixedly connected with the inner wall of the material discharging column 51. The other end of the material discharging rod 52 is fixedly connected with a material discharging block 54. The inside of the material discharging block 54 is slidably connected with the surface of a fixing rod 713. In the exhaust mechanism 6, there is a fan 61 installed on the top of the test box 4. The fan 61 is connected to an external circuit through an electric wire. A suction pipe 62 is fixedly connected to the front end of the fan 61. One end of the suction pipe 62 penetrates and extends into the interior of the test box 4. A guide pipe 63 is fixedly connected to the rear end of the fan 61. One end of the guide pipe 63 is communicated with an external treatment box. The treatment box is a prior art and is used for treating toxic gases. By setting the material discharging mechanism 5, the flame-retardant PVC sheath material adhered to the surface of the fixing rod 713 is extruded by the material discharging block 54 and collected through a collection box, realizing the rapid material discharging operation of the flame-retardant PVC sheath material and avoiding affecting subsequent detection operations. At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] During operation, first open the cabinet door and put the flame-retardant PVC sheath material into the test box 4, aligning its two ends with the fixed rods 713 on both sides. Subsequently, start the drive motor 721 to drive the drive rod 722 and the rotating disc 711 to rotate. The rotation of the rotating disc 711 causes one end of the rotating rod 712 to rotate at the bottom of the rotating disc 711, and the other end of the rotating rod 712 to rotate on one side of the transmission plate 82, thereby causing the transmission plate 82 to slide on the surface of the limit rod 81. The sliding of the transmission plate 82 causes the transmission rods 83, the fixed rods 713, and the limit strips 714 on both sides to slide synchronously towards the opposite side. When the fixed rod 713 slides, since one end of the limit strip 714 contacts the outside of the stripping block 54, it pushes the stripping block 54 and the stripping rod 52 to slide synchronously. The stripping rod 52 slides inside the stripping column 51, stretching the return spring 53. After the fixed rods 713 on both sides are inserted into the inside of the flame-retardant PVC sheath material, the stripping block 54 abuts against the flame-retardant PVC sheath material to hold the flame-retardant PVC sheath material clamped and fixed. Subsequently, start the flame spraying device 2 to spray the set flame through the flame spraying pipe 3 to detect the flame retardancy of the flame-retardant PVC sheath material. At the same time, start the fan 61 to extract the gas generated during the detection process through the suction pipe 62 and the guide pipe 63 and transport it to the external gas treatment box to treat the harmful gas generated during the detection process. When the flame retardancy detection of the flame-retardant PVC sheath material is completed, since during the detection process, the flame-retardant PVC sheath material may burn and adhere to the fixed rod 713 and is not easy to be stripped, at this time, start the drive motor 721 to drive the drive rod 722 and the rotating disc 711 to rotate in the reverse direction, causing the fixed rods 713 on both sides to slide towards the opposite side. And during the sliding, the return spring 53 drives the stripping rod 52 and the stripping block 54 to reset synchronously. When the stripping rod 52 completely slides into the stripping column 51, at this time, since the fixed rod 713 is still sliding outwards, the flame-retardant PVC sheath material adhered to the surface of the fixed rod 713 will contact the stripping block 54, and the stripping block 54 will extrude the flame-retardant PVC sheath material adhered to the surface of the fixed rod 713 and drop it into the collection box installed at the bottom of the inner cavity of the test box 4.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A test device for detecting the flame retardancy of flame-retardant PVC sheath material, comprising a detection table (1), characterized in that: A flame spraying device (2) is installed on the top of the detection table (1). A flame spraying pipe (3) is installed on the left side of the flame spraying device (2). A test box (4) is installed on the top of the detection table (1). A blanking mechanism (5) is arranged on the inner wall of the test box (4). An exhaust mechanism (6) is installed on the top of the test box (4). A fixing mechanism (7) is arranged inside the detection table (1). The fixing mechanism (7) includes: A fixing component (71), including a rotating disk (711) rotatably installed on the top of the inner cavity of the detection table (1). A rotating rod (712) is rotatably connected to the bottom of the rotating disk (711). One end of the rotating rod (712) enables a fixing rod (713) to slide through a transmission component (8). The surface of the fixing rod (713) is slidably connected to the inside of the test box (4). Symmetrical limiting strips (714) are installed on the surface of the fixing rod (713); A driving component (72), arranged at the bottom of the detection table (1).

2. The testing device for detecting the flame retardancy of flame-retardant PVC sheath material according to claim 1, wherein: The transmission component (8) includes a limiting rod (81) installed on the inner wall of the detection table (1). A transmission plate (82) is slidably connected to the surface of the limiting rod (81). One side of the transmission plate (82) is rotatably connected to one end of the rotating rod (712). A transmission rod (83) is fixedly connected to the top of the transmission plate (82). The top end of the transmission rod (83) is fixedly connected to one end of the fixing rod (713).

3. The testing device for detecting the flame retardancy of flame retardant PVC sheath material according to claim 2, wherein: Symmetrical sliding grooves (9) are formed on the top of the detection table (1). The inner surface of the sliding groove (9) is slidably connected to the surface of the transmission rod (83).

4. A test device for detecting the flame retardancy of flame retardant PVC sheath material according to claim 1, characterized in that: The driving component (72) includes a driving motor (721) installed at the bottom of the detection table (1). One end of the output shaft of the driving motor (721) is fixedly connected to a driving rod (722) through a coupling. The top end of the driving rod (722) is fixedly connected to the bottom of the rotating disk (711).

5. The test device for detecting the flame retardancy of flame-retardant PVC sheath material according to claim 1, characterized in that: The blanking mechanism (5) includes a blanking column (51) installed on the inner wall of the test box (4). A blanking rod (52) is slidably connected to the inside of the blanking column (51). One end of the blanking rod (52) is fixedly connected to a return spring (53). The other end of the return spring (53) is fixedly connected to the inner wall of the blanking column (51). The other end of the blanking rod (52) is fixedly connected to a blanking block (54). The inside of the blanking block (54) is slidably connected to the surface of the fixing rod (713).

6. The test device for detecting the flame retardancy of flame retardant PVC sheath material according to claim 1, wherein: The exhaust mechanism (6) includes a blower (61) installed on the top of the test box (4). A suction pipe (62) is fixedly connected to the front end of the blower (61). One end of the suction pipe (62) extends through and into the inside of the test box (4). A guide pipe (63) is fixedly connected to the rear end of the blower (61).

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