Elasticity testing device for EVA shoe material

Abstract

The utility model discloses an EVA (Ethylene Vinyl Acetate) shoe material elasticity testing device, which comprises a base, a vertical bracket fixedly arranged on the base, a vertically sliding mounting plate arranged on the bracket, a vertical round tube fixedly arranged on the mounting plate, a fixed placing table arranged at the upper end of the base, and an elastic piece arranged at the lower end of the round tube, a strip-shaped seam is formed in one side of the round pipe and arranged along the length of the round pipe, a movable small ball is arranged in the round pipe in a matched mode, a protruding block extending out of the strip-shaped seam is fixedly connected to one side of the small ball, an infrared distance meter for measuring the distance of the small ball is installed at the upper end of the round pipe, and the change of the distance of the small ball in the process is measured through the infrared distance meter. Therefore, the springback height of the small ball can be observed more accurately instead of naked eyes.

Description

Technical Field

[0001] The utility model relates to the technical field of EVA shoe material production, in particular to an elastic testing device for EVA shoe materials. Background Art

[0002] As one of the most commonly used daily necessities for people, insoles are extremely widely used. Nowadays, with the accelerating pace of people's lives and increasing work pressure, people are paying more and more attention to self-care. The feet are a very important part of the human body, densely covered with rich capillaries and important acupoints. Health care and physical therapy of the feet can eliminate fatigue throughout the body. Due to the large amount of movement and sweating of the feet, it is extremely easy to be infected with various skin diseases. For example, beriberi, foot sweat, and foot odor are common diseases in daily life, which are skin diseases caused by fungal infections, bringing many inconveniences to people's daily lives. Especially foot odor, taking off shoes indoors will pollute the indoor air and bring troubles to oneself or family members.

[0003] Ethylene-vinyl acetate (EVA) rubber and plastic products are new environmentally friendly plastic materials, having good advantages such as buffering, earthquake resistance, heat insulation, moisture resistance, and resistance to chemical corrosion, and being non-toxic and non-absorbent. EVA rubber and plastic products can be processed and formed through design. Their shockproof performance is superior to traditional packaging materials such as polystyrene (foam), and they meet environmental protection requirements, being the best choice for export products.

[0004] Usually, the primary requirement for users when purchasing insoles is comfort, and one of the aspects is elasticity. Therefore, in the production of insoles, it is necessary to test the elasticity of the insoles. Usually, a vertical glass tube with scales is used. The lower end of the glass tube is placed on the insole, and then a gravity ball is dropped from a height inside the glass tube. After the ball hits the insole, it will rebound. By recording the rebound height through the scales, the quality of the insole's elasticity can be measured. However, in this way, when the ball rebounds, the rebound height is observed by the naked eye, and when the ball passes through a certain scale, it is an instantaneous behavior. Therefore, the naked eye observation is inaccurate, and only a rough numerical range can be seen. Summary of the Utility Model

[0005] In order to solve the deficiencies in the above-mentioned prior art, the utility model provides an elastic testing device for EVA shoe materials.

[0006] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0007] An elastic testing device for EVA shoe materials, comprising a base, on which a vertical bracket is fixedly provided. An installation plate is vertically slidably arranged on the bracket. A vertical circular tube is fixedly installed on the installation plate. The upper and lower ends of the circular tube are provided with through holes. A fixed placement table is arranged at the upper end of the base. The lower end of the circular tube abuts against the upper end of the placement table. A strip-shaped slot is formed on one side of the circular tube, and the strip-shaped slot is arranged along the length of the circular tube. A movable small ball is arranged in the circular tube in a matching manner. A convex block extending out from the strip-shaped slot is fixedly connected to one side of the small ball. An infrared distance measuring instrument for measuring the distance of the small ball is installed at the upper end of the circular tube.

[0008] In a preferred technical solution, four height-adjustable feet are distributed in a rectangular shape at the lower end of the base, and a level is arranged on each of two adjacent sides of the base.

[0009] In a preferred technical solution, the foot includes a foot pad. The foot pad is provided with a vertical support rod. The upper part of the support rod is provided with an external thread. A jack for inserting the support rod is formed at the lower end of the base. An internal thread screwed with the external thread is arranged in the jack. A polygonal block is fixedly arranged on the support rod.

[0010] In a preferred technical solution, a vertically extending slide rail is arranged on the bracket. A chute matching with the slide rail is formed on the installation plate. The installation plate slides on the slide rail by being stuck in the chute.

[0011] In a preferred technical solution, a plurality of scales are arranged on the circular tube along the vertical direction.

[0012] Compared with the prior art, the beneficial effects are as follows:

[0013] The utility model has a simple structure and is convenient to use. Lift the installation plate to raise the circular tube, then place the shoe material to be measured on the placement table, and then lower the installation plate so that the lower end of the circular tube abuts against the shoe material. Turn on the infrared distance measuring instrument. Lift the small ball to a high position through the convex block and then let it fall and bounce back after hitting the shoe material. Measure the change in the distance of the small ball during this process through the infrared distance measuring instrument, so as to replace the naked eye to observe the bounce height of the small ball, which is more accurate. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the utility model.

[0015] Reference numerals: 1. Base; 2. Bracket; 3. Slide rail; 4. Installation plate; 5. Circular tube; 6. Strip-shaped slot; 7. Small ball; 8. Convex block; 9. Scale; 10. Placement table; 11. Infrared distance measuring instrument; 12. Foot pad; 13. Support rod; 14. Jack; 15. Polygonal block; 16. Level. Detailed Description of the Invention

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 of the embodiments.

[0017] An elastic testing device for EVA shoe materials, including a base 1, a vertical bracket 2 is fixedly arranged on the base 1, a vertically slidable mounting plate 4 is arranged on the bracket 2, a vertical circular tube 5 is fixedly installed on the mounting plate 4. The circular tube 5 is made of transparent glass or plastic. The upper and lower ends of the circular tube 5 are through. A fixed placement table 10 is arranged at the upper end of the base 1. The lower end of the circular tube 5 abuts against the upper end of the placement table 10. A strip-shaped slit 6 is opened on one side of the circular tube 5. The strip-shaped slit 6 is arranged along the length of the circular tube 5. A movable small ball 7 is arranged in the circular tube 5 in a matching manner. A convex block 8 extending out of the strip-shaped slit 6 is fixedly connected to one side of the small ball 7. The convex block 8 can move up and down in the strip-shaped slit 6. An infrared distance measuring instrument 11 for measuring the distance of the small ball 7 is installed at the upper end of the circular tube 5. The infrared distance measuring instrument 11 adopts the existing technology.

[0018] Move the mounting plate 4 upward to lift the circular tube 5, then place the shoe material to be measured on the placement table 10, and then lower the mounting plate 4 so that the lower end of the circular tube 5 abuts against the shoe material. Turn on the infrared distance measuring instrument 11. Lift the small ball 7 to a high position through the convex block 8 and then let it fall and bounce back after hitting the shoe material. Measure the change in the distance of the small ball 7 during this process through the infrared distance measuring instrument 11, so as to replace the naked eye to observe the bounce height of the small ball 7, which is more accurate.

[0019] In a preferred technical solution, four height-adjustable feet are distributed in a rectangular shape at the lower end of the base 1, and a spirit level 16 is arranged on each of two adjacent sides of the base 1.

[0020] By adjusting the height of the feet and cooperating with the spirit level 16, the base 1 is adjusted to a horizontal state, so that the circular tube 5 can be kept vertical, improving the measurement accuracy.

[0021] In a preferred technical solution, the feet include a foot pad 12. The foot pad 12 is provided with a vertical support rod 13. The upper part of the support rod 13 is provided with an external thread. A jack 14 for inserting the support rod 13 is opened at the lower end of the base 1. An internal thread screwed with the external thread is arranged in the jack 14. A polygonal block 15 is fixedly arranged on the support rod 13.

[0022] Rotate the support rod 13 through the polygonal block 15. Due to the connection between the external thread and the internal thread, the base 1 can be driven to move up and down.

[0023] In a preferred technical solution, a vertically extending sliding rail 3 is provided on the bracket, a sliding groove matching the sliding rail 3 is formed on the mounting plate 4, and the mounting plate 4 slides on the sliding rail 3 by being stuck in the sliding groove.

[0024] In a preferred technical solution, a plurality of scales 9 are provided on the round tube 5 along the vertical direction.

[0025] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0027] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. An elasticity testing device for EVA shoe material, characterized in that: The invention comprises a base (1), a vertical bracket (2) is fixedly provided on the base (1), a vertical sliding mounting plate (4) is provided on the bracket (2), a vertical round tube (5) is fixedly installed on the mounting plate (4), the upper and lower ends of the round tube (5) are through-set, a fixed placement platform (10) is provided at the upper end of the base (1), the lower end of the round tube (5) abuts against the upper end of the placement platform (10), a strip slit (6) is opened on one side of the round tube (5), the strip slit (6) is arranged along the length of the round tube (5), a movable small ball (7) is matched in the round tube (5), a protrusion (8) extending from the strip slit (6) is fixedly connected to one side of the small ball (7), and an infrared rangefinder (11) for measuring the distance of the small ball (7) is installed on the upper end of the round tube (5).

2. The elasticity testing device for EVA shoe material according to claim 1, characterized in that: The lower end of the base (1) is provided with four height-adjustable supporting feet arranged in a rectangular shape, and a level (16) is provided on each of two adjacent sides of the base (1).

3. The elasticity testing device for EVA shoe material according to claim 2, characterized in that: The support leg comprises a foot pad (12), the foot pad (12) is provided with a vertical support rod (13), the upper part of the support rod (13) is provided with an external thread, the lower end of the base (1) is provided with a socket (14) for inserting the support rod (13), the socket (14) is provided with an internal thread screwed to the external thread, and a polygonal block (15) is fixedly provided on the support rod (13).

4. The elasticity testing device for EVA shoe material according to claim 1, characterized in that: The bracket is provided with a vertically extending slide rail (3), the mounting plate (4) is provided with a slide groove matching the slide rail (3), and the mounting plate (4) slides on the slide rail (3) by being clamped in the slide groove.

5. The elasticity testing device for EVA shoe material according to claim 1, characterized in that: The circular tube (5) is provided with a plurality of scales (9) along the vertical direction.

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