A portable detection device for outdoor table and chair load-bearing durability performance test

Abstract

The utility model discloses a portable detection device for outdoor table and chair bearing durability performance test belongs to detection equipment technical field, and it is easy to use, and the detection personnel need not to wait, and the manpower resource is saved greatly.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and in particular relates to a portable testing device for testing the load-bearing durability of outdoor tables and chairs. Background Technology

[0002] With the rise of outdoor sports in recent years, simple tables and chairs, which belong to outdoor products, have become increasingly popular. These tables and chairs are often foldable and portable, but due to these features, their durability is far inferior to that of household tables and chairs.

[0003] There are two main technical solutions for testing the load-bearing durability of tables and chairs: The first solution involves the testing personnel personally recording the start time (the time when the heavy object is placed on the table or chair) and the end time (the time when the table or chair collapses) next to the testing environment, and then recording the test results based on the time difference between the two. This method is suitable for tables and chairs with a short collapse time (less than 2 hours). The second solution involves using an external camera to record the entire testing process, and then reviewing the video recording to confirm the final load-bearing time of the table or chair. This method is suitable for tables and chairs with a longer collapse time (more than 4 hours) or even tables and chairs that collapse at night.

[0004] Based on the above description, Method 1 requires a person to be present next to the equipment, focusing intently on the entire testing process and ready to record the time at any time; Method 2 requires manual review of the image data later, using the time recorded in the image data as the final testing time. Both methods require manpower and additional time, and are not the most efficient. Utility Model Content

[0005] The purpose of this invention is to provide a portable testing device for testing the load-bearing durability of outdoor tables and chairs, in order to overcome the shortcomings of the existing technology.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A portable testing device for testing the load-bearing durability of outdoor tables and chairs includes: a horizontal base, on which rectangular frames are symmetrically arranged, and a mirror structure and an infrared transmitter / receiver are respectively installed at the top of the two rectangular frames. The mirror structure and the infrared transmitter / receiver are arranged diagonally. A data processor is installed inside the horizontal base, and the infrared transmitter / receiver is electrically connected to the data processor.

[0008] Furthermore, balancing foot supports are installed at the four corners of the bottom of the horizontal base.

[0009] Furthermore, the rectangular frame includes two telescopic rods and one horizontal rod. The bottom ends of the two telescopic rods are rotatably connected to the two corners of the horizontal base, and the top ends of the two telescopic rods are fixedly connected to the two ends of the horizontal rod.

[0010] Furthermore, there is rotational damping between the telescopic rod and the horizontal base, which allows the telescopic rod to be fixed at any angle.

[0011] Furthermore, an LCD screen is provided on the horizontal base, and the LCD screen is electrically connected to the data processor.

[0012] Furthermore, the front end of the horizontal base is provided with a storage slot, and a pull-out foot switch is installed in the storage slot.

[0013] This utility model provides a portable testing device for testing the load-bearing durability of outdoor tables and chairs, which has the following advantages compared with the prior art:

[0014] This utility model has an exquisite overall design, is easy to operate, and is compact. When folded, the entire device can be lifted with one hand, achieving the purpose of portability and mobility.

[0015] Compared with the existing technical solution one, once the test begins, this utility model does not require additional testing personnel to be present. They only need to come over after the test is completed to record the final duration displayed on the LCD screen, which greatly saves human resources. Compared with the existing technical solution two, this utility model can obtain the final test results without the help of a networked camera and a computer to record image data. This saves instrument resources and is not limited by the location. Attached Figure Description

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

[0017] Figure 1 This is a schematic diagram of the structure of this utility model after folding;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model during operation.

[0019] In the diagram: 1-Horizontal base, 2-Rectangular frame, 21-Telescopic rod, 22-Horizontal rod, 3-Mirror structure, 4-Infrared transmitter / receiver, 5-Balancing footrest, 6-LCD display screen, 7-Foot switch. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments:

[0021] refer to Figure 1-2 As shown, this utility model provides a portable testing device for testing the load-bearing durability of outdoor tables and chairs, including: a horizontal base 1, on which rectangular frames 2 are symmetrically arranged, and a mirror structure 3 and an infrared transmitter / receiver 4 are respectively installed at the top of the two rectangular frames 2. The mirror structure 3 and the infrared transmitter / receiver 4 are arranged diagonally. A data processor is installed inside the horizontal base 1, and the infrared transmitter / receiver 4 is electrically connected to the data processor.

[0022] In a preferred embodiment, a balance foot support 5 is installed at each of the four corners of the bottom of the horizontal base 1.

[0023] In a preferred embodiment, the rectangular frame 2 includes two telescopic rods 21 and a horizontal rod 22. The bottom ends of the two telescopic rods 21 are rotatably connected to the two corners of the horizontal base 1, and the top ends of the two telescopic rods 21 are fixedly connected to the two ends of the horizontal rod 22. Both telescopic rods 21 are hollow structures with wires inside. The function of these wires is to allow the infrared transmitter / receiver 4 to exchange data with the data processor in the horizontal base 1.

[0024] In a preferred embodiment, there is rotational damping between the telescopic rod 21 and the horizontal base 1, allowing the telescopic rod 21 to be fixed at any angle. By folding the two rectangular frames 2 inward and then binding the two horizontal rods 22 with ropes, a handle is formed, making it easy to lift the entire device and achieving the purpose of portability.

[0025] In a preferred embodiment, a liquid crystal display screen 6 is provided on the horizontal base 1, and the liquid crystal display screen 6 is electrically connected to the data processor.

[0026] In a preferred embodiment, the front end of the horizontal base 1 has a storage slot, and a pull-out foot switch 7 is installed in the storage slot. The retractable foot switch 7 can prevent the feet of the testing personnel used to press the foot switch from being crushed by collapsed tables and chairs.

[0027] The working process and principle of this utility model are as follows:

[0028] S1: After setting up the simple table and chairs to be tested, place this device directly below the table and chairs. By making the rectangular frame vertical and ensuring that the height of the horizontal bars on both sides is the same, the infrared beam can be reflected normally in the same horizontal plane. It is also necessary to ensure that the highest point of the horizontal after the extension and retraction adjustment is slightly lower than the lowest point of the center plane of the table and chairs being tested by 5cm (according to the requirements of GB / T 10357.1-2024 standard, the table and chairs are allowed to have a deformation space of 5cm downward after bearing the load).

[0029] S2: Adjust the four balance feet 5 to make the horizontal base 1 reach a horizontal and stable state;

[0030] S3: Pull out the pull-out foot switch 7 at the front end of the horizontal base 1. The foot switch 7 needs to be removed from the vertical projection of the subject being tested (table and chair) on the ground. This is to prevent the feet of the testing personnel used to press the foot switch from being crushed by the collapsed table and chair.

[0031] S4: Place a standard weight of a certain mass (25kg iron weight with handle) on the load-bearing part of the table and chair, and at the same time step on the timing foot pedal 7. Then, the LCD screen 6 displays the timing time. At the same time, the infrared transmitter / receiver 4 emits infrared rays, which are reflected by the mirror structure 3 on the diagonal and received by the infrared transmitter / receiver 4. That is, the infrared transmitter / receiver is officially turned on.

[0032] S5: After a certain period of time, the table and chairs, which are the main load-bearing structures, collapse. Their deformed or fallen parts block the infrared rays emitted by the infrared transmitter / receiver or touch any of the horizontal bars 22 on both sides, causing the telescopic bar 21 to extend or retract, which in turn interrupts the infrared path (the dotted line part), and finally the timing device stops timing.

[0033] S6: The inspector comes over and records the final duration shown on LCD screen 6.

[0034] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0035] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A portable testing device for testing the load-bearing durability of outdoor tables and chairs, characterized in that, include: A horizontal base (1) is provided, on which rectangular frames (2) are symmetrically arranged. A mirror structure (3) and an infrared transmitter / receiver (4) are respectively installed at the top of the two rectangular frames (2). The mirror structure (3) and the infrared transmitter / receiver (4) are arranged diagonally. A data processor is installed inside the horizontal base (1). The infrared transmitter / receiver (4) is electrically connected to the data processor.

2. The portable testing device for testing the load-bearing durability of outdoor tables and chairs according to claim 1, characterized in that, The horizontal base (1) is equipped with balance footrests (5) at the four corners of its bottom.

3. The portable testing device for testing the load-bearing durability of outdoor tables and chairs according to claim 1, characterized in that, The rectangular frame (2) includes two telescopic rods (21) and a horizontal rod (22). The bottom ends of the two telescopic rods (21) are rotatably connected to the two corners of the horizontal base (1), and the top ends of the two telescopic rods (21) are fixedly connected to the two ends of the horizontal rod (22).

4. A portable testing device for testing the load-bearing durability of outdoor tables and chairs according to claim 3, characterized in that, There is rotational damping between the telescopic rod (21) and the horizontal base (1), which allows the telescopic rod (21) to be fixed at any angle.

5. A portable testing device for testing the load-bearing durability of outdoor tables and chairs according to claim 1, characterized in that, A liquid crystal display screen (6) is provided on the horizontal base (1), and the liquid crystal display screen (6) is electrically connected to the data processor.

6. A portable testing device for testing the load-bearing durability of outdoor tables and chairs according to claim 1, characterized in that, The horizontal base (1) has a storage slot at its front end, and a pull-out foot switch (7) is installed in the storage slot.

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