Horizontal and vertical combustion performance tester

Abstract

The utility model belongs to the technical field of fire hazard tests, and particularly relates to a horizontal and vertical combustion performance tester which comprises a test mechanism and an exhaust mechanism, the test mechanism comprises a test cabinet, a test cavity, an exhaust groove, a sample holder and an igniter, the test cavity is formed in the front side of the test cabinet, and the exhaust groove is formed in the bottom of the left side of the test cavity; an igniter is arranged on the side wall of the lower part of the test cavity; the exhaust mechanism is connected with the exhaust groove and comprises an exhaust pipe, an exhaust pipe, an exhaust hopper, a drawer box and a fan, the side wall of the lower end of the exhaust pipe is connected with the exhaust hopper through the exhaust pipe, the exhaust hopper is connected with the exhaust groove, the lower end of the exhaust pipe is communicated with the drawer box, and the upper end of the exhaust pipe is connected with the fan. Ash falling at the bottom of the test cavity is pumped out through the exhaust mechanism, and time and labor wasting of manual cleaning is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hazard testing, in particular to a horizontal and vertical combustion performance testing instrument. Background Art

[0002] The horizontal vertical flame test is a flame test method commonly used to assess the fire hazard of electrical products. When the specimen begins the vertical flame test, the burner tube's central axis should be kept vertical, facing the specimen's wide side, and inserted horizontally into the specimen. If molten drips from the specimen during flame application, the burner should be tilted to a 45° angle with the specimen's wide side, just enough to completely remove the burner from under the specimen to prevent drips from entering the burner's combustion tube. While the burner is tilted, the distance between the burner's combustion tube center and the remaining main portion of the specimen should remain constant.

[0003] Currently, during combustion tests, samples are usually fixed on a sample rack and ignited by an igniter before the test. After the test, the air inside the test chamber needs to be pumped out to purify the air. However, after the sample burns, ashes and drippings will fall to the bottom of the test chamber due to weight and cannot be discharged. Manual cleaning is required by staff, which is time-consuming and labor-intensive. For this reason, the present application proposes a horizontal and vertical combustion performance tester. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the existing horizontal and vertical combustion performance testers, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a horizontal and vertical combustion performance tester, which can extract the ashes dropped on the bottom of the test chamber through the exhaust mechanism, thereby avoiding the time-consuming and labor-intensive manual cleaning.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A horizontal and vertical combustion performance tester, comprising:

[0009] The test mechanism includes a test cabinet, a test chamber, an exhaust slot, a sample rack, and an igniter. The test chamber is provided at the front of the test cabinet, an exhaust slot is provided at the bottom left of the test chamber, a sample rack is provided at the top of the test chamber, and an igniter is provided on the lower side wall of the test chamber.

[0010] An exhaust mechanism is connected to the exhaust groove, and the exhaust mechanism includes an exhaust pipe, an exhaust pipe, an exhaust hopper, a drawer box and a fan. The side wall of the lower end of the exhaust pipe is connected to the exhaust hopper through the exhaust pipe, the exhaust hopper is connected to the exhaust groove, the lower end of the exhaust pipe is connected to the drawer box, and the upper end of the exhaust pipe is connected to the fan.

[0011] As a preferred solution of a horizontal and vertical combustion performance tester described in the utility model, wherein: a driving motor is provided on the side wall of the fan, the output shaft of the driving motor extends out of the other side of the fan and is connected to a driving gear, a cleaning mechanism is provided inside the test chamber, the cleaning mechanism includes a reciprocating screw, a driven gear, a movable block and a scraper, one end of the reciprocating screw is rotatably connected to the inner wall of the test chamber, the other end of the reciprocating screw extends out of the test cabinet and is connected to the driven gear, the driven gear is engaged with the driving gear, a movable block is provided on the reciprocating screw, and the bottom of the movable block is connected to the scraper.

[0012] As a preferred solution of the horizontal and vertical combustion performance tester described in the utility model, a slot is provided on the side wall of the exhaust pipe, and a filter element is inserted into the slot.

[0013] As a preferred solution of the horizontal and vertical combustion performance tester described in the utility model, the side wall of the test chamber is provided with an axial hole, the reciprocating screw extends out of the test chamber through the axial hole, and a bearing is connected between the reciprocating screw and the axial hole.

[0014] As a preferred solution of the horizontal and vertical combustion performance tester described in the utility model, a sealing gasket is provided between the filter element and the slot, and a handle is provided at the outer end of the filter element.

[0015] As a preferred solution of the horizontal and vertical combustion performance tester described in the utility model, the rear side wall of the movable block is in contact with the inner wall of the test chamber.

[0016] As a preferred solution of the horizontal and vertical combustion performance tester described in the utility model, the bottom of the scraper is in contact with the bottom of the test chamber, and the scraper is screwed and fixed on the movable block.

[0017] Compared with the existing technology: the utility model fixes the sample on the sample holder, ignites the sample through the igniter to perform the combustion performance test, and the ashes produced by the combustion fall to the bottom of the test chamber. The ashes at the bottom of the test chamber are extracted through the exhaust mechanism, and there is no need for manual cleaning, which is convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0019] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the test mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the exhaust mechanism structure of the utility model;

[0022] Figure 4 This is a side view of the exhaust mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the cleaning mechanism structure of the utility model.

[0024] In the figure: 100 test mechanism, 110 test cabinet, 120 test chamber, 130 exhaust slot, 140 sample rack, 150 igniter, 200 exhaust mechanism, 210 exhaust pipe, 211 slot, 220 exhaust pipe, 230 exhaust hopper, 240 drawer box, 250 fan, 260 drive motor, 270 drive gear, 280 filter element, 300 cleaning mechanism, 310 reciprocating screw rod, 320 driven gear, 330 movable block, 340 scraper. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate 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 may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0029] The utility model provides a horizontal and vertical combustion performance tester, which extracts the ashes that fall on the bottom of the test chamber through the exhaust mechanism, avoiding the time-consuming and labor-intensive manual cleaning. Figure 1-Figure 5 , including: a testing mechanism 100 and an exhaust mechanism 200.

[0030] The test mechanism 100 includes a test cabinet 110, a test chamber 120, an exhaust slot 130, a sample rack 140, and an igniter 150. The test chamber 120 is provided at the front of the test cabinet 110, the exhaust slot 130 is provided at the bottom left side of the test chamber 120, the sample rack 140 is provided at the top of the test chamber 120, and the igniter 150 is provided on the lower sidewall of the test chamber 120.

[0031] The sample rack 140 and the igniter 150 are both elevated structures, fixed to the inner side wall of the test chamber 120, leaving the bottom of the test chamber 120 empty, and the exhaust groove 130 is used for exhaust and discharge.

[0032] The exhaust mechanism 200 is connected to the exhaust slot 130 and includes an exhaust pipe 210, an exhaust pipe 220, an exhaust hopper 230, a drawer box 240, and a fan 250. The lower side wall of the exhaust pipe 210 is connected to the exhaust hopper 230 through the exhaust pipe 220. The exhaust hopper 230 is connected to the exhaust slot 130. The lower end of the exhaust pipe 210 is connected to the drawer box 240, and the upper end of the exhaust pipe 210 is connected to the fan 250.

[0033] The fan 250 drives air flow to generate negative pressure in the test chamber 120 , and the ashes at the bottom of the test chamber 120 enter the exhaust pipe 220 through the exhaust hopper 230 . When the fan 250 is turned off, the ashes fall into the drawer box 240 under the weight.

[0034] When the sample is a plastic product or a rubber product, the combustion will melt and drip, and the dripping will solidify at the bottom of the test chamber 120 and be difficult to be extracted. For this reason, a drive motor 260 is provided on the side wall of the fan 250, and the output shaft of the drive motor 260 extends out of the fan 250 and is connected to the other side of the drive gear 270. A cleaning mechanism 300 is provided inside the test chamber 120, and the cleaning mechanism 300 includes a reciprocating screw 310, a driven gear 320, a movable block 330 and a scraper 340. One end of the reciprocating screw 310 is rotatably connected to the inner wall of the test chamber 120, and the other end of the reciprocating screw 310 extends out of the test cabinet 110 and is connected to the driven gear 320. The driven gear 320 is meshed with the drive gear 270. A movable block 330 is provided on the reciprocating screw 310, and the bottom of the movable block 330 is connected to the scraper 340.

[0035] When the fan 250 is working, it drives the driving gear 270 to rotate. The driving gear 270 engages and drives the driven gear 320 to rotate, which in turn drives the reciprocating screw 310 to rotate. The movable block 330 reciprocates on the reciprocating screw 310, driving the scraper 340 to scrape off the solidified droplets at the bottom of the test chamber 120.

[0036] Since the ash will follow the air flow and finally be blown out from the fan 250, affecting the working environment, it cannot fall into the drawer box 240. Therefore, a slot 211 is opened on the side wall of the exhaust pipe 210, and a filter element 280 is inserted into the slot 211;

[0037] The air flow is filtered by the filter element 280 to prevent ash from being blown out of the fan 250 and affecting the working environment. The plugged-in filter element 280 is easy to remove and replace for cleaning.

[0038] Since the reciprocating screw 310 is a driven part, there is contact friction between it and the side wall of the test chamber 120, which affects the transmission effect. Therefore, an axial hole is opened on the side wall of the test chamber 120, and the reciprocating screw 310 extends out of the test chamber 120 through the axial hole. A bearing is connected between the reciprocating screw 310 and the axial hole to reduce the movement resistance of the reciprocating screw 310.

[0039] If there is a gap between the filter element 280 and the slot 211, it will cause air leakage, affecting the negative pressure effect. Therefore, a sealing gasket is provided between the filter element 280 and the slot 211, and a handle is provided at the outer end of the filter element 280;

[0040] The sealing gasket improves the sealing effect and avoids air leakage, and the filter element 280 can be plugged in and installed through the handle.

[0041] Since the movable block 330 needs to perform threaded feeding motion, if no limit is added, the movable block 330 will rotate along with the reciprocating screw 310. Therefore, the rear side wall of the movable block 330 is in contact with the inner wall of the test chamber 120 to prevent the movable block 330 from rotating and keep the movable block 330 in linear motion.

[0042] Since ash easily adheres to the scraper 340 , in order to facilitate cleaning of the scraper 340 , the bottom of the scraper 340 is in contact with the bottom of the test chamber 120 . The scraper 340 is screwed and fixed to the movable block 330 , and the scraper 340 can be removed for cleaning.

[0043] During specific use, the sample is fixed on the sample holder 140, and the sample is ignited by the igniter 150 for testing. During the test, the exhaust mechanism 200 is not started to prevent the airflow from affecting the combustion effect. After the test, the exhaust mechanism 200 is started, and the fan 250 drives the airflow to circulate, so that a negative pressure is generated in the test chamber 120. The ashes at the bottom of the test chamber 120 enter the exhaust pipe 220 through the exhaust hopper 230. The fan 250 is turned off, and the ashes fall into the drawer box 240 under the weight. When the fan 250 is working, it drives the driving gear 270 to rotate, and the driving gear 270 engages to drive the driven gear 320 to rotate, and synchronously drives the reciprocating screw 310 to rotate, so that the movable block 330 reciprocates on the reciprocating screw 310, driving the scraper 340 to scrape off the solidified droplets at the bottom of the test chamber 120.

[0044] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A horizontal and vertical combustion performance tester, characterized in that: include: A test mechanism (100) comprises a test cabinet (110), a test chamber (120), an exhaust slot (130), a sample rack (140) and an igniter (150); the test chamber (120) is provided at the front side of the test cabinet (110); the exhaust slot (130) is provided at the left bottom of the test chamber (120); the sample rack (140) is provided at the upper part of the test chamber (120); and the igniter (150) is provided on the lower side wall of the test chamber (120); An exhaust mechanism (200) is connected to the exhaust groove (130). The exhaust mechanism (200) comprises an exhaust pipe (210), an exhaust pipe (220), an exhaust hopper (230), a drawer box (240) and a fan (250). The side wall of the lower end of the exhaust pipe (210) is connected to the exhaust hopper (230) through the exhaust pipe (220). The exhaust hopper (230) is connected to the exhaust groove (130). The lower end of the exhaust pipe (210) is connected to the drawer box (240). The upper end of the exhaust pipe (210) is connected to the fan (250).

2. A horizontal and vertical combustion performance tester according to claim 1, characterized in that: A driving motor (260) is provided on the side wall of the fan (250), and an output shaft of the driving motor (260) extends out of the other side of the fan (250) and is connected to a driving gear (270). A cleaning mechanism (300) is provided inside the test chamber (120), and the cleaning mechanism (300) comprises a reciprocating screw (310), a driven gear (320), a movable block (330) and a scraper (340). One end of the reciprocating screw (310) is rotatably connected to the inner wall of the test chamber (120), and the other end of the reciprocating screw (310) extends out of the test cabinet (110) and is connected to the driven gear (320). The driven gear (320) is meshed with the driving gear (270). A movable block (330) is provided on the reciprocating screw (310), and the bottom of the movable block (330) is connected to the scraper (340).

3. The horizontal and vertical combustion performance tester according to claim 1, characterized in that: A slot (211) is provided on the side wall of the exhaust pipe (210), and a filter element (280) is plugged into the slot (211).

4. A horizontal and vertical combustion performance tester according to claim 2, characterized in that: An axial hole is provided on the side wall of the test cavity (120), and the reciprocating screw rod (310) extends out of the test cavity (120) through the axial hole. A bearing is connected between the reciprocating screw rod (310) and the axial hole.

5. The horizontal and vertical combustion performance tester according to claim 3, characterized in that: A sealing gasket is provided between the filter core (280) and the slot (211), and a handle is provided at the outer end of the filter core (280).

6. The horizontal and vertical combustion performance tester according to claim 2, characterized in that: The rear side wall of the movable block (330) is in contact with the inner wall of the test cavity (120).

7. The horizontal and vertical combustion performance tester according to claim 2, characterized in that: The bottom of the scraper (340) is in contact with the bottom of the test chamber (120), and the scraper (340) is screwed and fixed on the movable block (330).

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