Flame resistance testing mechanism

Abstract

The utility model discloses a flame retardance testing mechanism, which comprises a combustion cabinet and a control cabinet, the front end of the combustion cabinet is provided with a cabinet door, the top of the combustion cabinet is fixedly connected with a ventilation pipe, the ventilation pipe is internally provided with a fan, the top in the combustion cabinet is provided with a fixed cylinder, and two inner side walls of the combustion cabinet are respectively provided with a sliding rail and an electric sliding table; a vertical positioning assembly is connected to the bottom of the fixing barrel, a horizontal positioning assembly is connected to one side of the sliding rail, an electric cylinder is installed on a sliding table body of the electric sliding table, the output end of the electric cylinder is fixedly connected with an installation block, an igniter is installed on the installation block, and a display screen and control keys are arranged on the control cabinet. The engineering plastic sample fixing device is reasonable in design, simple in structure, convenient to install and fix an engineering plastic sample, and high in practicability, and meanwhile, the application range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of flame retardancy testing devices, in particular to a flame retardancy testing mechanism. Background Art

[0002] With the continuous progress of polymer synthesis and processing technology, engineering plastics have penetrated into all areas of people's production and life. In many applications, the flame retardancy of plastics is an important performance indicator for the application of materials; flame retardancy refers to the property of a substance or a material after treatment that significantly delays the spread of flames; flame retardancy plays an important guiding role in the selection of the scope of use of materials, especially for materials used in building materials, ships, vehicles, and home appliances, which are all required to have high flame retardancy.

[0003] The flame retardancy test methods for engineering plastics include horizontal burning test and vertical burning test, but most of the existing flame retardancy test devices for engineering plastics can only perform one test, with a narrow scope of application. In addition, the existing test devices are not convenient for installing and fixing engineering plastic samples, which has certain shortcomings. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a flame retardancy testing mechanism.

[0005] In order to solve the above problems, the technical solution of the utility model is: a flame retardancy testing mechanism, including a combustion cabinet and a control cabinet, a cabinet door is installed at the front end of the combustion cabinet, a ventilation duct is fixedly connected to the top, a fan is installed inside the ventilation duct, a fixed cylinder is installed on the top of the combustion cabinet, a slide rail and an electric slide are respectively installed on the two inner walls, a vertical positioning assembly is connected to the bottom of the fixed cylinder, a horizontal positioning assembly is connected to one side of the slide rail, an electric cylinder is installed on the slide of the electric slide, a mounting block is fixedly connected to the output end of the electric cylinder, an igniter is installed on the mounting block, and a display screen and control buttons are provided on the control cabinet.

[0006] Furthermore, an ash box is placed at the inner bottom of the combustion cabinet, and a plurality of ventilation holes are opened at the bottom of the side.

[0007] Furthermore, a protective net and a filter net are respectively provided on the top and bottom of the fan.

[0008] Furthermore, the vertical positioning assembly includes a vertical positioning frame, a fixing rod is fixedly connected to the top of the vertical positioning frame, positioning grooves are symmetrically opened on both sides inside, a pressure plate is provided in the positioning groove, three connecting rods are fixedly connected to one side of the pressure plate, a vertical plate is fixedly connected to one end of the connecting rod, and a spring is sleeved on the outside.

[0009] Furthermore, the fixing rod and the fixing tube are both provided with through holes, and positioning pins are inserted into the through holes; one end of the connecting rod passes through the front end surface of the vertical positioning frame and is fixedly connected to the vertical plate, and the spring is located inside the positioning groove.

[0010] Furthermore, the horizontal positioning assembly includes a horizontal positioning frame, a slider is fixedly connected to one end of the horizontal positioning frame, a cushion block is fixedly connected to the bottom of the other end, a plurality of positioning rods are symmetrically fixedly connected to the top surface, and a movable frame is arranged above the horizontal positioning frame.

[0011] Furthermore, the sliding block is a T-shaped block and is slidably connected to the slide rail. The movable frame has the same size as the horizontal positioning frame, and a positioning hole adapted to the positioning rod is provided on the movable frame.

[0012] The advantages of the utility model compared with the existing technology are: the utility model can place the engineering plastic sample in the positioning groove by pulling the vertical plate outward, and the pressure plate can realize the compression and fixation of the engineering plastic sample under the action of the spring, and the positioning rod is inserted into the fixing tube and fixed by the positioning pin, so as to complete the installation of the engineering plastic sample for the vertical combustion test; a through hole adapted to the positioning rod is opened on the engineering plastic sample, and it is sleeved on the outside of the positioning rod through the through hole, and the movable frame is placed on the top of the horizontal positioning frame to realize the compression and fixation of the engineering plastic sample, and the slider is slidably connected to the slide rail, so as to complete the installation of the engineering plastic sample for the horizontal combustion test. The scope of application of the device can be effectively improved through vertical combustion tests and horizontal combustion tests. The utility model has a reasonable design and a simple structure, is convenient for installing and fixing engineering plastic samples, and at the same time improves the scope of application of the device and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the internal structure of the combustion cabinet of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the vertical positioning component of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the horizontal positioning component of the utility model.

[0017] As shown in the figure: 1. Combustion cabinet; 2. Control cabinet; 3. Cabinet door; 4. Ventilation duct; 5. Fan; 6. Fixed cylinder; 7. Slide rail; 8. Electric slide; 9. Vertical positioning assembly; 9.1. Vertical positioning frame; 9.2. Fixed rod; 9.3. Pressure plate; 9.4. Connecting rod; 9.5. Vertical plate; 9.6. Spring; 10. Horizontal positioning assembly; 10.1. Horizontal positioning frame; 10.2. Positioning rod; 10.3. Slider; 10.4. Pad; 10.5. Movable frame; 11. Electric cylinder; 12. Mounting block; 13. Ignitor; 14. Display screen; 15. Control button; 16. Ash box; 17. Protective net; 18. Filter. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] like Figures 1 to 4 As shown, a flame retardancy testing mechanism includes a combustion cabinet 1 and a control cabinet 2, a cabinet door 3 is installed at the front end of the combustion cabinet 1, a ventilation pipe 4 is fixedly connected to the top, an ash box 16 is placed at the inner bottom, a plurality of ventilation holes are opened at the bottom of the side, a fan 5 is installed inside the ventilation pipe 4, a protective net 17 and a filter net 18 are respectively provided at the top and bottom of the fan 5, a fixed cylinder 6 is installed at the top of the combustion cabinet 1, a slide rail 7 and an electric slide 8 are respectively installed on the two inner walls, a vertical positioning component 9 is connected to the bottom of the fixed cylinder 6, a horizontal positioning component 10 is connected to one side of the slide rail 7, an electric cylinder 11 is installed on the slide of the electric slide 8, a mounting block 12 is fixedly connected to the output end of the electric cylinder 11, an igniter 13 is installed on the mounting block 12, and a display screen 14 and control buttons 15 are provided on the control cabinet 2.

[0020] The vertical positioning assembly 9 includes a vertical positioning frame 9.1, a fixing rod 9.2 is fixedly connected to the top of the vertical positioning frame 9.1, and positioning grooves are symmetrically provided on both sides of the interior, a pressure plate 9.3 is provided in the positioning groove, three connecting rods 9.4 are fixedly connected to one side of the pressure plate 9.3, a vertical plate 9.5 is fixedly connected to one end of the connecting rod 9.4, a spring 9.6 is sleeved on the outside, through holes are provided on the fixing rod 9.2 and the fixing cylinder 6, and positioning pins are inserted in the through holes; one end of the connecting rod 9.4 passes through the front end surface of the vertical positioning frame 9.1 and is fixedly connected to the vertical plate 9.5, and the spring 9.6 is located on the inner side of the positioning groove.

[0021] The horizontal positioning assembly 10 includes a horizontal positioning frame 10.1, a slider 10.3 is fixedly connected to one end of the horizontal positioning frame 10.1, a cushion block 10.4 is fixedly connected to the bottom of the other end, and a plurality of positioning rods 10.2 are symmetrically fixedly connected to the top surface. A movable frame 10.5 is provided above the horizontal positioning frame 10.1, the slider 10.3 is a T-shaped block and is slidably connected to the slide rail 7. The movable frame 10.5 has the same size as the horizontal positioning frame 10.1, and a positioning hole matching the positioning rod 10.2 is opened on the movable frame 10.5.

[0022] In specific use, when the device is used to test the flame retardancy of engineering plastics, when a vertical combustion test is required, the horizontal positioning assembly 10 can be removed, and the vertical plate 9.5 can be pulled outward, so that the connecting rod 9.4 drives the pressure plate 9.3 to move, and the pressure plate 9.3 squeezes the spring 9.6. At this time, the engineering plastic sample can be placed in the positioning groove, and the vertical plate 9.5 is loosened. Under the action of the spring 9.6, the pressure plate 9.3 can achieve the compression and fixation of the engineering plastic sample, and the positioning rod 9.2 is inserted into the fixing tube 6 and fixed by the positioning pin, that is, the installation of the engineering plastic sample is completed, and the height of the igniter 13 can be adjusted by the operation of the electric slide 8, and the electric cylinder is used. The extension and retraction of 11 can adjust the horizontal position of the igniter 13, thereby realizing the ignition of the engineering plastic sample and realizing the vertical combustion test of the engineering plastic sample; when a horizontal combustion test is required, the vertical positioning component 9 can be removed, and a through hole adapted to the positioning rod 10.2 is opened on the engineering plastic sample, and the through hole is sleeved on the outside of the positioning rod 10.2, and the movable frame 10.4 is placed on the top of the horizontal positioning frame 10.1 to realize the compression and fixation of the engineering plastic sample, and the slider 10.2 is slidably connected to the slide rail 7, that is, the installation of the engineering plastic sample is completed, and the engineering plastic sample is ignited according to the same ignition steps, that is, the horizontal combustion test of the engineering plastic sample is realized.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A flame retardancy testing mechanism, comprising a combustion cabinet (1) and a control cabinet (2), characterized in that: The combustion cabinet (1) is provided with a cabinet door (3) at the front end, a ventilation pipe (4) is fixedly connected to the top, a fan (5) is installed inside the ventilation pipe (4), a fixed cylinder (6) is installed at the top of the combustion cabinet (1), a slide rail (7) and an electric slide (8) are respectively installed on two inner side walls, a vertical positioning component (9) is connected to the bottom of the fixed cylinder (6), a horizontal positioning component (10) is connected to one side of the slide rail (7), an electric cylinder (11) is installed on the slide of the electric slide (8), a mounting block (12) is fixedly connected to the output end of the electric cylinder (11), an igniter (13) is installed on the mounting block (12), and a display screen (14) and control buttons (15) are provided on the control cabinet (2).

2. A flame retardancy testing device according to claim 1, characterized in that: An ash receiving box (16) is placed at the inner bottom of the combustion cabinet (1), and a plurality of ventilation holes are opened at the bottom of the side surface.

3. A flame retardancy testing device according to claim 1, characterized in that: The top and bottom of the fan (5) are respectively provided with a protective net (17) and a filter net (18).

4. A flame retardancy testing device according to claim 1, characterized in that: The vertical positioning assembly (9) comprises a vertical positioning frame (9.1), a fixing rod (9.2) is fixedly connected to the top of the vertical positioning frame (9.1), positioning grooves are symmetrically provided on both sides of the interior, a pressing plate (9.3) is provided in the positioning groove, three connecting rods (9.4) are fixedly connected to one side of the pressing plate (9.3), a vertical plate (9.5) is fixedly connected to one end of the connecting rod (9.4), and a spring (9.6) is sleeved on the outer side.

5. A flame retardancy testing device according to claim 4, characterized in that: The fixing rod (9.2) and the fixing cylinder (6) are both provided with through holes, and positioning pins are inserted into the through holes; one end of the connecting rod (9.4) passes through the front end surface of the vertical positioning frame (9.1) and is fixedly connected to the vertical plate (9.5), and the spring (9.6) is located inside the positioning groove.

6. A flame retardancy testing device according to claim 1, characterized in that: The horizontal positioning assembly (10) comprises a horizontal positioning frame (10.1), one end of the horizontal positioning frame (10.1) is fixedly connected to a slider (10.3), the bottom of the other end is fixedly connected to a cushion block (10.4), the top surface is symmetrically fixedly connected to a plurality of positioning rods (10.2), and a movable frame (10.5) is provided above the horizontal positioning frame (10.1).

7. A flame retardancy testing device according to claim 6, characterized in that: The slide block (10.3) is a T-shaped block and is slidably connected to the slide rail (7). The movable frame (10.5) has the same size as the horizontal positioning frame (10.1), and a positioning hole matching the positioning rod (10.2) is provided on the movable frame (10.5).

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