CN219891182U - Electric heating wire flame-retardant tester - Google Patents

Abstract

The utility model relates to an electric heating wire flame resistance tester which comprises a box body, wherein a screw rod extending to the right side of the box body is rotatably arranged on the inner wall of the left side of the box body, a rotating wheel is fixedly arranged at the right end of the screw rod, two moving blocks are fixedly arranged on the surface of the screw rod and positioned in internal threads of the box body, sliding blocks extending to the inner wall of the box body are fixedly arranged at the bottoms of the two moving blocks, connecting rods are rotatably arranged at the tops of the two moving blocks, a movable plate is rotatably arranged at the other ends of the two connecting rods, a placing cover is fixedly arranged at the top of the movable plate, protection cylinders are fixedly arranged on the inner walls of the left side and the right side of the placing cover, first springs are fixedly arranged on the inner walls of one side opposite to the two protection cylinders, and limiting plates are fixedly arranged at the other ends of the two first springs. This electric heat line flame resistance tester conveniently carries out heat-resisting test, simultaneously also greatly reduced manufacturing cost, improved this novel practicality greatly.

Description

A kind of electric wire flame resistance tester

Technical field

The utility model relates to the technical field of flame resistance testing, specifically a heating wire flame resistance tester.

Background technique

With the continuous development of science and technology, the use of wires is becoming more and more common. People use wires that can generate heat after being energized to make electric blankets and other electric heating equipment. Therefore, the safety of wires is directly related to the level of fire safety. The wire that generates heat due to thermal effect is called a heating wire, also known as a heating wire. In basic physics, it is called a resistance wire or a resistance wire. According to the conductor, it mainly includes nickel-chromium alloy wire, constantan wire, carbon fiber, etc. According to the insulator, it is They are divided into silicone, PVC, Teflon, glass fiber, etc. During the production process of heating wires, it is often necessary to conduct flame resistance tests on the heating wires to check whether they meet the standards.

Chinese patent CN209673741U discloses a heating wire flame resistance tester. By arranging a placement plate, a slider, a chute, a hollow cavity, a placement groove, an alcohol lamp and an electric push rod, two electric push rods are started at the same time, and the electric push rod drives the placement The plate moves downward. At this time, the slider slides in the chute. Place the alcohol lamp firmly toward the placement slot. At this time, the alcohol lamp is located in the placement slot, and the bottom of the alcohol lamp is against the bottom inner wall of the hollow cavity. Light the alcohol lamp. Start the two electric push rods at the same time again. The electric push rod drives the placement plate to move upward, so that the outer flame of the alcohol lamp is about 1 cm away from the heating wire to be tested. Observe whether the heating wire burns. If not, the burning length When it does not exceed 1 cm, the heat resistance and flame resistance of the heating wire is qualified. The structure is simple, the alcohol lamp can be placed stably, and the height of the alcohol lamp can be easily adjusted. It is more convenient to conduct flame resistance tests on the heating wire, and multiple alcohol lamps can be used at the same time. The lamp undergoes multiple sets of flame resistance tests.

However, the comparison document uses an electric push rod to drive the alcohol lamp for height adjustment. Although it is convenient, it increases the production cost of the device. At the same time, the comparison document makes it difficult to place alcohol lamps of different sizes, thus reducing the practicality of the device. In view of this, we propose this New type to solve the above problems.

Utility model content

In view of the shortcomings of the existing technology, the utility model provides a heating wire flame resistance tester, which has the advantages of conveniently adjusting the height of the alcohol lamp, and solves the problem of using an electric push rod to drive the alcohol lamp for height adjustment. Although it is convenient, it also increases the cost. The production cost of the device and the difficulty of placing alcohol lamps of different sizes are also problematic, thus reducing the practicality of the device.

In order to achieve the above-mentioned purpose of conveniently adjusting the height of the alcohol lamp, the present utility model provides the following technical solution: a heating wire flame resistance tester, including a box body, the inner wall of the left side of the box body is rotated with a wire extending to the right side of the box body. rod, a runner is fixedly installed on the right end of the screw rod, two moving blocks are installed on the surface of the screw rod and are threaded inside the box, and the bottoms of the two moving blocks are fixedly installed with a thread extending into the box. The slide block inside the bottom wall, the tops of the two moving blocks are rotatably installed with connecting rods, the other ends of the two connecting rods are rotatably installed with movable plates, and the tops of the movable plates are fixedly installed with placement covers, so Protective tubes are fixedly installed on the inner walls on the left and right sides of the placement cover, first springs are fixedly installed on the inner walls of the opposite side of the two protective cylinders, and limit plates are fixedly installed on the other ends of the two first springs. , inclined blocks are fixedly installed on the tops of the two limiting plates.

Furthermore, anti-slip pads are fixedly installed on the opposite sides of the inclined block and the limit plate on the left side and the inclined block and the limit plate on the right side. The thread directions on the left and right sides of the surface of the screw rod are opposite, and the two moving blocks Threads are installed on both sides of the screw surface in opposite thread directions.

Further, a chute is provided on the inner bottom wall of the box, and one end of the two slide blocks located inside the bottom wall of the box is slidingly connected to the chute.

Furthermore, a fixing rod is fixedly installed between the inner walls on the left and right sides of the box, and the front side of the fixing rod is marked with a scale mark.

Further, two limit covers are fixedly installed at the bottom of the fixed rod. The left and right sides of the two limit covers are provided with openings. The bottoms of the two limit covers are plugged into the limit covers. The movable rods inside the cover, the bottoms of the two movable rods are fixedly installed with pull blocks, and the two movable rods are fixedly installed with positioning plates at one end inside the limiting cover. The two positioning plates are connected to the corresponding Second springs are fixedly installed between the inner bottom walls of the limiting cover, and the two second springs are located outside the corresponding movable rods.

Further, a box door is hinged on the front side of the box body, and an observation window is embedded in the front side of the box door.

Compared with the existing technology, this utility model provides a heating wire flame resistance tester with the following features:

Beneficial effects:

1. This electric wire flame resistance tester uses a placement cover, a first spring and a limit plate. After placing the alcohol lamp inside the placement cover, the elastic force of the first spring enables the two limit plates to press against the alcohol lamp. To limit the position, alcohol lamps of different sizes can also be placed. Turning the wheel causes the screw rod to rotate, so that the two moving blocks move in opposite or opposite directions, and then the movable plate can move up and down through the connecting rod. The height of the alcohol lamp can be adjusted to facilitate heat resistance testing. It also greatly reduces production costs and greatly improves the practicality of the new model.

2. This heating wire flame resistance tester facilitates positioning of the heating wire through the set limit cover, movable rod, second spring and positioning plate, thereby facilitating testing and greatly improving the convenience of the device.

Description of the drawings

Figure 1 is a front cross-sectional view of the utility model;

Figure 2 is a cross-sectional view of the placement cover of the present utility model;

Figure 3 is an enlarged view of position A in Figure 1 of the present invention;

Figure 4 is a front view of the utility model.

In the picture: 1. Box; 2. Screw; 3. Runner; 4. Moving block; 5. Slider; 6. Connecting rod; 7. Movable plate; 8. Placement cover; 9. Protective tube; 10. The first spring; 11. Limiting plate; 12. Inclined block; 13. Anti-slip pad; 14. Fixed rod; 15. Limiting cover; 16. Movable rod; 17. Positioning plate; 18. Second spring; 19. Pull block; 20. Door; 21. Observation window; 22. Chute.

Detailed ways

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

Please refer to Figures 1 and 2. A heating wire flame resistance tester includes a box 1. The inner wall on the left side of the box 1 is rotatably mounted with a screw rod 2 extending to the right side of the box 1. The right end of the screw rod 2 is fixedly installed. There is a runner 3, and two moving blocks 4 are installed on the surface of the screw rod 2 and located in the internal thread of the box 1. The bottoms of the two moving blocks 4 are fixedly installed with sliders 5 extending to the inside of the bottom wall of the box 1. , the tops of the two moving blocks 4 are rotatably installed with connecting rods 6, the other ends of the two connecting rods 6 are rotatably installed with movable plates 7, the tops of the movable plates 7 are fixedly installed with placing covers 8, and the left and right sides of the placing covers 8 are Protective cylinders 9 are fixedly installed on the inner walls. A first spring 10 is fixedly installed on the inner wall of the opposite side of the two protective cylinders 9. The other ends of the two first springs 10 are fixedly installed with a limit plate 11. The two limit plates The tops of 11 are fixedly equipped with inclined blocks 12.

Through the placement cover 8, the first spring 10 and the limiting plate 11, after the alcohol lamp is placed inside the placing cover 8, the elastic force of the first spring 10 enables the two limiting plates 11 to limit the position of the alcohol lamp. At the same time, alcohol lamps of different sizes can also be placed. Rotating the wheel 3 causes the screw rod 2 to rotate, thereby causing the two moving blocks 4 to move in opposite or opposite directions, and then the movable plate 7 can move up and down through the connecting rod 6. As a result, the height of the alcohol lamp can be adjusted to facilitate heat resistance testing. At the same time, the production cost is greatly reduced, and the practicality of the new type is greatly improved.

The protective tube 9 is used to protect the first spring 10 so that the first spring 10 is not easily bent.

In addition, the arrangement of the inclined block 12 facilitates the placement of the alcohol lamp, and the arrangement of the anti-slip pad 13 makes the two limiting plates 11 more stable when limiting the position of the alcohol lamp.

In this embodiment, anti-slip pads 13 are fixedly installed on the opposite sides of the left inclined block 12 and the limiting plate 11 and the right inclined block 12 and the limiting plate 11. The thread directions on the left and right sides of the screw rod 2 are opposite. Two moving blocks 4 are threadedly installed on both sides of the surface of the screw rod 2 in opposite thread directions.

In this embodiment, the inner bottom wall of the box 1 is provided with a chute 22 , and one end of the two slide blocks 5 located inside the inner bottom wall of the box 1 is slidingly connected to the chute 22 .

By providing the chute 22 and the slide block 5, the two moving blocks 4 are more stable when moving.

In this embodiment, a fixing rod 14 is fixedly installed between the inner walls on the left and right sides of the box 1 , and a scale mark is marked on the front side of the fixing rod 14 .

The set scale marks make it easy to observe the burning length of the heating wire.

Please refer to Figure 3. In this embodiment, two limit covers 15 are fixedly installed on the bottom of the fixed rod 14. The left and right sides of the two limit covers 15 are provided with openings. The bottoms of the two limit covers 15 are inserted into There are movable rods 16 extending to the inside of the limit cover 15. The bottoms of the two movable rods 16 are fixedly equipped with pull blocks 19. The ends of the two movable rods 16 located inside the limit cover 15 are fixedly installed with positioning plates 17. Second springs 18 are fixedly installed between the two positioning plates 17 and the inner bottom wall of the corresponding limiting cover 15 . The two second springs 18 are located outside the corresponding movable rod 16 .

By providing the limit cover 15, the movable rod 16, the second spring 18 and the positioning plate 17, it is convenient to position the heating wire, thereby facilitating testing, which greatly improves the convenience of the device.

Please refer to Figure 4. In this embodiment, a door 20 is hinged on the front side of the box 1, and an observation window 21 is embedded in the front side of the door 20.

Through the provided observation window 21, it is convenient to observe the test conditions inside the box 1.

When this embodiment is in use, the two pulling blocks 19 are pulled respectively so that the movable rod 16 drives the positioning plate 17 to move downward. When the heating wire passes through the limiting cover 15, the two pulling blocks 19 are respectively released. When the second spring 18 The positioning plate 17 can position the heating wire under the elastic force, and then place the alcohol lamp inside the placement cover 8. Under the elastic force of the first spring 10, the two limiting plates 11 can limit the position of the alcohol lamp and rotate the wheel. 3. Make the screw rod 2 rotate, thereby making the two moving blocks 4 move in opposite or opposite directions, and then the movable plate 7 can move up and down through the connecting rod 6. Adjust the alcohol lamp to a suitable height and then light the alcohol lamp. Carry out a flame resistance test and observe whether the heating wire burns. It is convenient to observe the burning length according to the scale line. If the heating wire does not burn or the burning length does not exceed the set length, the heat and flame resistance of the heating wire is qualified. Otherwise, the device is unqualified. The production cost is low, and the test is more convenient and faster, which greatly improves the practicality of this new type.

The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology will not be described in detail in the article.

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 that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an electric heat line flame retardant tester, includes box (1), its characterized in that: the utility model discloses a box, including box (1), box, movable plate (7) are installed in the rotation of the left inner wall of box (1), the right-hand member fixed mounting of screw (2) has runner (3), the surface of screw (2) just is located the internal thread of box (1) and installs two movable blocks (4), two the bottom of movable block (4) is all fixed mounting has slider (5) that extend to the inside bottom in box (1), two connecting rod (6) are all installed in the rotation of the top of movable block (4), two movable plate (7) are installed in the rotation of the other end of connecting rod (6), the top fixed mounting of movable plate (7) has and places cover (8), the inner wall of placing cover (8) left and right sides is all fixed mounting and is protected section of thick bamboo (9), two the equal fixed mounting of one side inner wall that is relative of protection section of thick bamboo (9) has first spring (10), two the other end of first spring (10) is fixed mounting has limiting plate (11), two limiting plate (11) are all fixed mounting to the top of limiting plate (11).

2. The electric heating wire flame resistance tester according to claim 1, wherein: the left side sloping block (12) and limiting plate (11) are all fixed mounting to one side that right side sloping block (12) and limiting plate (11) are relative have slipmat (13), screw thread direction is opposite in the left and right sides of lead screw (2) surface, two movable block (4) screw thread installation respectively in the both sides that screw thread direction is opposite in lead screw (2) surface.

3. The electric heating wire flame resistance tester according to claim 1, wherein: the inner bottom wall of the box body (1) is provided with a sliding groove (22), and one ends of the two sliding blocks (5) positioned in the inner bottom wall of the box body (1) are both in sliding connection with the sliding groove (22).

4. The electric heating wire flame resistance tester according to claim 1, wherein: a fixed rod (14) is fixedly arranged between the inner walls of the left side and the right side of the box body (1), and scale marks are marked on the front side of the fixed rod (14).

5. The electric heating wire flame resistance tester according to claim 4, wherein: the bottom fixed mounting of dead lever (14) has two limiting cover (15), two the left and right sides of limiting cover (15) is the opening setting, two the bottom of limiting cover (15) is all pegged graft and is had movable rod (16) that extend to limiting cover (15) inside, two the bottom of movable rod (16) is all fixed mounting has pull block (19), two the one end that movable rod (16) are located limiting cover (15) is equal fixed mounting have locating plate (17), two equal fixed mounting has second spring (18) between the interior bottom wall of locating plate (17) and corresponding limiting cover (15), two second spring (18) all are located the movable rod (16) outside that corresponds.

6. The electric heating wire flame resistance tester according to claim 1, wherein: the front side of the box body (1) is hinged with a box door (20), and an observation window (21) is embedded in the front side of the box door (20).