High-performance engineering plastic flame-retardant detector

Abstract

The utility model provides a high-performance engineering plastic flame-retardant detector, and belongs to the technical field of material science. Comprising a detection cabinet, a supporting table fixedly connected to the inner wall of the detection cabinet, a fixing clamp fixedly installed on the top of the supporting table, a needle flame spray gun arranged on the inner wall of the fixing clamp, a protective door hinged to the outer surface of the detection cabinet, and an observation window fixedly installed on the inner surface of the protective door. Errors caused by manual recording can be effectively reduced through the detection mechanism, the test efficiency and the data reliability are improved, oxygen is accurately fed into the detection cabinet through the air supply assembly, intermittent self-cleaning can be conducted on the surface of the protective net through the sweeping mechanism, dust is prevented from blocking the protective net, and the service life of the protective net is prolonged. Therefore, the oxygen concentration in the detection cabinet is gradually reduced, the flame of the needle flame spray gun can be stably maintained, the abrasion to the protective net is reduced, and the overall operation cost of the equipment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of materials science and technology, and specifically relates to a high-performance flame retardant detector for engineering plastics. Background Technology

[0002] High-performance flame retardant testers for engineering plastics play an important role in the field of materials science. They detect the burning rate of materials under flame, evaluate their flame retardant effect, test the speed and range of flame spread under flame, assess the heat released and flame intensity during combustion, and ensure the safety performance of materials under fire conditions by flame retardant testing, thereby reducing fire risks.

[0003] In the prior art, patent CN208861446U discloses an engineering plastic fire-retardant monitoring device, including a fixed base, an ion fan, an electromagnetic relay, a mounting base, an exhaust pipe, a gas collection port, a protective net, a duct, a fan, and a combustible gas storage box. This device uses a protective net to prevent a large amount of dust and debris from entering the duct, thus avoiding dust affecting the normal operation of the device. However, this device lacks the function of real-time cleaning of dust on the surface of the protective net. This problem may lead to dust accumulation on the surface of the protective net, which gradually accumulates and blocks the mesh, causing the oxygen concentration in the detection cabinet to gradually decrease. However, needle flame spray guns usually require sufficient oxygen to maintain a stable flame. Insufficient oxygen will lead to unstable flame or incomplete combustion, making it difficult to accurately reflect the flame-retardant performance of the material. Utility Model Content

[0004] The purpose of this invention is to provide a high-performance flame retardant tester for engineering plastics, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-performance flame retardant testing instrument for engineering plastics includes a testing mechanism, comprising a testing cabinet, a support platform fixedly connected to the inner wall of the testing cabinet, a fixing clamp fixedly installed on the top of the support platform, a needle flame spray gun disposed on the inner wall of the fixing clamp, a protective door hinged to the outer surface of the testing cabinet, an observation window fixedly installed on the inner surface of the protective door, and an air supply assembly disposed on the outside of the testing cabinet and used in conjunction with the needle flame spray gun.

[0007] And a cleaning mechanism disposed on the outer surface of the testing cabinet and used in conjunction with the air supply assembly.

[0008] As a preferred embodiment of this utility model, the air supply assembly includes a motor adapted to be installed on the outside of the testing cabinet, a connecting shaft fixedly connected to the output end of the motor via a coupling, and a centrifugal fan fixedly disposed on one side of the connecting shaft.

[0009] As a preferred embodiment of this utility model, the air supply assembly further includes an air duct opened on the outside of the testing cabinet, an air inlet opened on the top of the support platform and used in conjunction with the air duct, an air collection port fixedly installed on the outer surface of the testing cabinet and used in conjunction with the air duct, and a protective net fixedly connected to the outer surface of the air collection port.

[0010] In a preferred embodiment of this utility model, the through end of the connecting shaft is fixedly connected to the rotor of the centrifugal fan, and the air duct is connected to the air inlet.

[0011] As a preferred embodiment of this utility model, the cleaning mechanism includes a first pulley fixedly sleeved on the outer surface of the connecting shaft, a belt sleeved on the outer surface of the first pulley, a second pulley sleeved on the inner surface of the other end of the belt, a support shaft fixedly connected to the inner surface of the second pulley, a turntable fixedly connected to the outer end face of the support shaft, a drive wheel fixedly connected to the outer surface of the turntable, a brake wheel fixedly connected to the outer surface of the other side of the drive wheel, and a first fixing frame fixedly installed on the outside of the testing cabinet and used in conjunction with the support shaft.

[0012] As a preferred embodiment of the present invention, the cleaning mechanism further includes a second fixed frame fixedly connected to the outside of the testing cabinet, and a transmission shaft rotatably connected to the inner surface of the second fixed frame.

[0013] As a preferred embodiment of this utility model, the cleaning mechanism further includes a grooved wheel fixedly sleeved on the outer surface of the transmission shaft and used in conjunction with the drive wheel, and a scraper fixedly installed on the outer end face of the transmission shaft and used in conjunction with the protective net.

[0014] In a preferred embodiment of this utility model, the outer surface of the support shaft is in rotatable contact with the inner surface of the first fixing frame, the outer surface of the transmission shaft is in rotatable contact with the inner surface of the second fixing frame, and the outer surface of the scraper is in slidable contact with the outer side of the protective net.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the detection mechanism can effectively reduce the error caused by human recording, improve testing efficiency and data reliability; the gas supply component not only accurately delivers oxygen into the detection cabinet, but also the cleaning mechanism can intermittently self-clean the surface of the protective net, preventing dust from clogging the protective net and causing the oxygen concentration in the detection cabinet to gradually decrease, ensuring that the flame of the needle flame gun can be maintained stably while reducing wear on the protective net and reducing the overall operating cost of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Enlarged schematic diagram of the local structure at point A;

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 4 For this utility model Figure 3 Enlarged schematic diagram of the local structure at point B;

[0021] Figure 5 This is a partial enlarged schematic diagram of the air delivery component in this utility model.

[0022] In the diagram: 100, Detection mechanism; 101, Detection cabinet; 102, Support platform; 103, Fixing clamp; 104, Needle flame spray gun; 105, Protective door; 106, Observation window; 107, Air supply assembly; 107a, Motor; 107b, Connecting shaft; 107c, Centrifugal fan; 107d, Air duct; 107e, Air inlet; 107f, Air collection port; 107g, Protective net; 200, Cleaning mechanism; 201, First pulley; 202, Belt; 203, Second pulley; 204, Support shaft; 205, Turntable; 206, Drive wheel; 207, Brake wheel; 208, First fixed frame; 209, Second fixed frame; 210, Transmission shaft; 211, Grooved wheel; 212, Scraper. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Reference Figures 1 to 5 This embodiment of the present invention provides a high-performance flame retardant testing instrument for engineering plastics, which can achieve the effect of intermittent self-cleaning of the surface of the protective net 107g by using the driving source of the centrifugal fan 107c.

[0028] The testing mechanism 100 includes a testing cabinet 101, a support platform 102 fixedly connected to the inner wall of the testing cabinet 101, a fixing clamp 103 fixedly installed on the top of the support platform 102, a needle flame spray gun 104 disposed on the inner wall of the fixing clamp 103, a protective door 105 hinged to the outer surface of the testing cabinet 101, an observation window 106 fixedly installed on the inner surface of the protective door 105, and an air supply assembly 107 disposed on the outside of the testing cabinet 101 and used in conjunction with the needle flame spray gun 104.

[0029] It should be noted that the testing cabinet 101 is equipped with an automated control system that can automatically record test data and transmit it to a remote terminal via the Internet, reducing errors caused by manual recording. The testing cabinet 101 is made of explosion-proof steel plate material with fire and explosion resistance, ensuring that even if combustion or explosion occurs during the test, it will not cause harm to the operators and the surrounding environment. The clamp 103 is used to clamp and fix the test material to prevent the position of the test material from shifting during the test. The needle flame torch 104 is made of stainless steel with an inner diameter of φ0.5mm±0.1mm, an outer diameter ≤φ0.9mm, a length ≥35mm, and an inclination angle of 45° during the test. It is in a vertical state when adjusting the flame height. The protective door 105 provides a closed space for the testing cabinet 101, thereby effectively isolating interference from the external environment and ensuring the accuracy and repeatability of the test results. The observation window 106 allows the staff to observe the internal situation of the testing cabinet 101 in real time, so as to make timely adjustments according to the actual situation.

[0030] And a cleaning mechanism 200, which is installed on the outer surface of the testing cabinet 101 and used in conjunction with the air supply assembly 107.

[0031] It should be noted that the air supply component 107 not only accurately delivers oxygen into the detection cabinet 101, but also enables the cleaning mechanism 200 to intermittently self-clean the surface of the protective net 107g, preventing dust from clogging the protective net 107g, ensuring that the flame of the needle flame gun can be maintained stably, reducing wear on the protective net 107g, and lowering the overall operating cost of the equipment.

[0032] Specifically, the air supply assembly 107 includes a motor 107a adapted to be installed on the outside of the testing cabinet 101, a connecting shaft 107b fixedly connected to the output end of the motor 107a via a coupling, and a centrifugal fan 107c fixedly installed on one side of the connecting shaft 107b.

[0033] Furthermore, the air supply assembly 107 also includes an air duct 107d opened on the outside of the test cabinet 101, an air inlet 107e opened on the top of the support platform 102 and used in conjunction with the air duct 107d, an air collection port 107f fixedly installed on the outer surface of the test cabinet 101 and used in conjunction with the air duct 107d, and a protective net 107g fixedly connected to the outer surface of the air collection port 107f.

[0034] It should also be noted that the air inlet 107e is used to accurately guide the airflow sent by the centrifugal fan 107c into the air duct 107d, so that oxygen can enter the interior of the testing cabinet 101 through the cooperation of the air duct 107d and the air inlet 107e. The protective net 107g is used to prevent dust and impurities in the air from entering the testing cabinet 101.

[0035] Preferably, the through end of the connecting shaft 107b is fixedly connected to the rotor of the centrifugal fan 107c, and the air duct 107d is connected to the air inlet 107e.

[0036] It should be noted that the cleaning mechanism 200 includes a first pulley 201 fixedly sleeved on the outer surface of the connecting shaft 107b, a belt 202 sleeved on the outer surface of the first pulley 201, a second pulley 203 sleeved on the inner surface of the other end of the belt 202, a support shaft 204 fixedly connected to the inner surface of the second pulley 203, a turntable 205 fixedly connected to the outer end face of the support shaft 204, a drive wheel 206 fixedly connected to the outer surface of the turntable 205, a brake wheel 207 fixedly connected to the outer surface of the other side of the drive wheel 206, and a first fixing frame 208 fixedly installed on the outside of the detection cabinet 101 and used in conjunction with the support shaft 204.

[0037] Furthermore, the cleaning mechanism 200 also includes a second fixed frame 209 fixedly connected to the outside of the testing cabinet 101, and a drive shaft 210 rotatably connected to the inner surface of the second fixed frame 209.

[0038] Specifically, the cleaning mechanism 200 also includes a grooved wheel 211 fixedly sleeved on the outer surface of the drive shaft 210 and used in conjunction with the drive wheel 206, and a scraper 212 fixedly installed on the outer end face of the drive shaft 210 and used in conjunction with the protective net 107g.

[0039] It should be explained that when the drive wheel 206 rotates into the groove of the grooved wheel 211, it can drive the grooved wheel 211 to rotate synchronously. When the drive wheel 206 rotates out of the groove of the grooved wheel 211, it can limit the grooved wheel 211 through the brake wheel 207.

[0040] Preferably, the outer surface of the support shaft 204 is in rotatable contact with the inner surface of the first fixing frame 208, the outer surface of the transmission shaft 210 is in rotatable contact with the inner surface of the second fixing frame 209, and the outer surface of the scraper 212 is in sliding contact with the outer side of the protective net 107g.

[0041] In use, the motor 107a is turned on to drive the connecting shaft 107b to rotate, causing the connecting shaft 107b to drive the fan blades of the centrifugal fan 107c to rotate synchronously with the first pulley 201. The rotation of the fan blades generates airflow, which is then precisely guided into the air duct 107d through the air inlet 107e. This allows oxygen to enter the testing cabinet 101 through the combination of the air duct 107d and the air inlet 107e, ensuring that the flame of the needle flame gun can be maintained stably. The protective net 107g intercepts dust and impurities in the air. The first pulley 201 and the belt 202 work together to drive the second belt. Wheel 203 rotates synchronously with support shaft 204. Through the cooperation of support shaft 204 and turntable 205, drive wheel 206 and brake wheel 207 rotate synchronously. When drive wheel 206 rotates into the groove of grooved wheel 211, it can drive grooved wheel 211, drive shaft 210 and scraper 212 to rotate synchronously. When drive wheel 206 rotates out of groove of grooved wheel 211, brake wheel 207 can limit grooved wheel 211, stop scraper 212 from rotating, prevent dust from clogging protective net 107g, and reduce wear of scraper 212 on protective net 107g, further improving the service life of protective net 107g.

[0042] In summary, the testing mechanism 100 effectively reduces errors caused by human recording, improves testing efficiency and data reliability. The gas supply component 107 not only accurately delivers oxygen into the testing cabinet 101, but also enables the cleaning mechanism 200 to intermittently self-clean the surface of the protective net 107g, preventing dust from clogging the protective net 107g and causing the oxygen concentration in the testing cabinet 101 to gradually decrease. This ensures that the flame of the needle flame gun can be maintained stably while reducing wear on the protective net 107g and lowering the overall operating cost of the equipment.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-performance flame retardant tester for engineering plastics, characterized in that: include, The testing mechanism (100) includes a testing cabinet (101), a support platform (102) fixedly connected to the inner wall of the testing cabinet (101), a fixing clamp (103) fixedly installed on the top of the support platform (102), a needle flame spray gun (104) disposed on the inner wall of the fixing clamp (103), a protective door (105) hinged to the outer surface of the testing cabinet (101), an observation window (106) fixedly installed on the inner surface of the protective door (105), and an air supply assembly (107) disposed on the outside of the testing cabinet (101) and used in conjunction with the needle flame spray gun (104). And a cleaning mechanism (200) disposed on the outer surface of the detection cabinet (101) and used in conjunction with the air supply assembly (107).

2. The high-performance flame retardant tester for engineering plastics according to claim 1, characterized in that: The air supply assembly (107) includes a motor (107a) adapted to be installed on the outside of the detection cabinet (101), a connecting shaft (107b) fixedly connected to the output end of the motor (107a) via a coupling, and a centrifugal fan (107c) fixedly installed on one side of the connecting shaft (107b).

3. The high-performance flame retardant tester for engineering plastics according to claim 2, characterized in that: The air supply assembly (107) further includes an air duct (107d) opened on the outside of the test cabinet (101), an air inlet (107e) opened on the top of the support platform (102) and used in conjunction with the air duct (107d), an air collection port (107f) fixedly installed on the outer surface of the test cabinet (101) and used in conjunction with the air duct (107d), and a protective net (107g) fixedly connected to the outer surface of the air collection port (107f).

4. The high-performance flame retardant tester for engineering plastics according to claim 3, characterized in that: The through end of the connecting shaft (107b) is fixedly connected to the rotor of the centrifugal fan (107c), and the air duct (107d) is connected to the air inlet (107e).

5. A high-performance flame retardant tester for engineering plastics according to claim 4, characterized in that: The cleaning mechanism (200) includes a first pulley (201) fixedly sleeved on the outer surface of the connecting shaft (107b), a belt (202) sleeved on the outer surface of the first pulley (201), a second pulley (203) sleeved on the inner surface of the other end of the belt (202), a support shaft (204) fixedly connected to the inner surface of the second pulley (203), a turntable (205) fixedly connected to the outer end face of the support shaft (204), a drive wheel (206) fixedly connected to the outer surface of the turntable (205), a brake wheel (207) fixedly connected to the outer surface of the other side of the drive wheel (206), and a first fixing frame (208) fixedly installed on the outside of the detection cabinet (101) and used in conjunction with the support shaft (204).

6. The high-performance flame retardant tester for engineering plastics according to claim 5, characterized in that: The cleaning mechanism (200) also includes a second fixed frame (209) fixedly connected to the outside of the detection cabinet (101), and a drive shaft (210) rotatably connected to the inner surface of the second fixed frame (209).

7. A high-performance flame retardant tester for engineering plastics according to claim 6, characterized in that: The cleaning mechanism (200) further includes a grooved wheel (211) fixedly sleeved on the outer surface of the drive shaft (210) and used in conjunction with the drive wheel (206), and a scraper (212) fixedly installed on the outer end face of the drive shaft (210) and used in conjunction with the protective net (107g).

8. A high-performance flame retardant tester for engineering plastics according to claim 7, characterized in that: The outer surface of the support shaft (204) is in rotatable contact with the inner surface of the first fixing frame (208), the outer surface of the transmission shaft (210) is in rotatable contact with the inner surface of the second fixing frame (209), and the outer surface of the scraper (212) is in sliding contact with the outer side of the protective net (107g).

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