Impact test demonstration box
By designing a lightweight metal shell and return spring-driven impact ball structure, the existing demonstration box has been solved and the problem of heavy weight and safety hazards is realized, and portable and safe material performance display is achieved.
Patent Information
- Application Number
- CN202422555016.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing impact test demonstration boxes are large in weight, inconvenient to carry, and have high requirements for demonstration sites, which poses safety hazards.
An impact test demonstration box including a metal shell, a positioning column and a return spring was designed. The impact test was carried out through the positioning column to drive the impact ball upward and fall under the action of the return spring to avoid the impact ball rolling, and combined with the buffer material and glass sheet in the metal shell to reduce the site requirements.
It realizes lightweight portability, reduces the requirements for demonstration sites, avoids safety hazards, and can intuitively display the buffering performance of the materials.
Smart Images
Figure CN223091730U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of impact test, in particular to an impact test demonstration box. Background Art
[0002] In the production process of some materials and equipment, it is often necessary to conduct impact tests on the materials or equipment. During the test, generally, the test product is placed on a tabletop, and a steel ball of a specified weight is freely dropped from a specified dropping height onto the product to impact the product, and then the appearance and various performances of the product are inspected.
[0003] In order to directly display the performance of the product, it is necessary to directly conduct impact tests on the material performance of the product at the scene in some exhibition occasions. For this reason, a portable impact test demonstration box has emerged. The existing demonstration box is a portable toolbox, in which a lead ball, ACF material for demonstration (Artificial Cartilage Foam, artificial cartilage material), glass sheets, etc. are placed. The whole is relatively heavy and not convenient to carry. And when demonstrating outdoors, the requirements for the demonstration site are strict, and the floor that is not hard enough may be damaged, affecting the demonstration effect. In addition, when demonstrating at the exhibition or event site, after the lead ball drops down, the lead ball is easy to roll, posing a safety hazard. Content of the Utility Model
[0004] Aiming at the defects existing in the prior art, the purpose of the utility model is to provide an impact test demonstration box to solve the problems that the existing demonstration box has high requirements for the demonstration site and there are safety hazards during the demonstration.
[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0006] The present application provides an impact test demonstration box, which includes a metal shell. A panel is installed on the front side of the metal shell, and the panel forms a vertical sliding connection with the metal shell. A positioning column extending vertically downward is arranged at the top end of the inner cavity of the metal shell. A power device is arranged at the top end of the metal shell. The bottom end of the positioning column is fixedly installed with an impact ball. The positioning column forms a vertical sliding connection with the top end of the metal shell. The power device is connected to the top end of the positioning column and is used to drive the positioning column to move up and down. A buffer material layer and a glass sheet are arranged at the bottom end surface of the inner cavity of the metal shell. The glass sheet is arranged between the buffer material layer and the bottom end surface of the metal shell. A return spring is also sleeved on the outer peripheral surface of the positioning column. One end of the return spring is connected to the impact ball, and the other end of the return spring is fixedly connected to the bottom of the top end of the inner cavity of the metal shell.
[0007] Further, the impact ball has a hemispherical outer shape structure.
[0008] Further, the panel is a panel structure made of acrylic material.
[0009] Further, a scale mark for identifying the impact force at the corresponding height position of the impact ball is provided on one side of the metal shell.
[0010] Further, the metal shell is made of stainless steel.
[0011] The beneficial effects of the present utility model are as follows:
[0012] 1. By installing the impact ball in the inner cavity of the metal shell with the help of the positioning column, during the demonstration, the impact ball is driven to rise synchronously by driving the positioning column upward. After rising to a predetermined position and then releasing, the impact ball falls vertically under its own gravity and the action of the return spring, and an impact test is carried out on the product placed below. Since the impact ball is fixed at the bottom end of the positioning column and is connected to one end of the return spring, the impact ball after the impact test will not roll around, avoiding harm to the surrounding personnel; in addition, since the impact test is set in the inner cavity of the metal shell, and a buffer layer and a glass sheet are provided at the bottom end of the inner cavity of the metal shell, the impact load applied during the impact test of the impact ball on the product can be effectively borne, reducing the requirements for the demonstration site;
[0013] 2. Due to the simple structure, it is convenient to carry; at the same time, the buffer performance of different materials can be intuitively understood. Description of the Drawings
[0014] Figure 1 It is a three-dimensional structure schematic diagram of the impact test demonstration box in the embodiment of the present application.
[0015] Figure 2 It is a schematic diagram of the internal structure of the impact test box in the embodiment of the present application.
[0016] Figure 3 It is a schematic diagram of the structure of the impact test demonstration box in the embodiment of the present application in the top view direction.
[0017] Figure 4 is Figure 3 a longitudinal sectional structure schematic diagram at C-C in
[0018] Figure 5 is Figure 1 a partial enlarged structure schematic diagram at A in
[0019] Figure 6 is Figure 2 a partial enlarged structure schematic diagram at B in
[0020] Figure 7Schematic diagram of the structural principle for the power device in the embodiments of this application to drive the positioning post upward.
[0021] In the figure:
[0022] 10 - Impact test demonstration box, 100 - Panel, 200 - Metal housing, 201 - Installation groove, 300 - Return spring, 400 - Positioning post, 500 - Impact ball, 600 - Buffer layer, 700 - Glass sheet, 800 - Cover part. Specific embodiments
[0023] The following further elaborates on the present utility model in detail in conjunction with the description of the accompanying drawings and specific embodiments.
[0024] Refer to Attached Figure 1 to Attached Figure 4 As shown, this embodiment provides an impact test demonstration box 10, which includes a metal box housing. The metal box housing is made of an impact - resistant metal material, such as stainless steel.
[0025] Refer to Attached Figure 1 and Attached Figure 2 as well as Attached Figure 5 and Attached Figure 6 As shown, a panel 100 is installed on the front end face of the metal housing 200. In order to place the sample to be tested in the inner cavity of the metal housing 200, the panel 100 can move up and down relative to the metal housing 200. That is, by moving the panel 100, the opening or closing of the inner cavity of the metal housing 200 can be realized.
[0026] Referring to Attached Figure 5 and Attached Figure 6 As shown, in this embodiment, vertically downward - extending installation grooves 201 are formed on the left and right side surfaces of the metal housing 200. The left and right sides of the panel 100 are respectively inserted into the installation grooves 201 to realize the up - and - down sliding of the panel 100 along the metal housing 200.
[0027] In some embodiments, in order to directly observe the demonstration state in the inner cavity of the metal housing 200, the panel 100 can be made of transparent acrylic material, and of course, it can also be made of other impact - resistant transparent materials.
[0028] Referring to Attached Figure 2 and Attached Figure 4As shown, a positioning column 400 is fixedly installed in the inner cavity of the metal housing 200. The positioning column 400 has a hollow structure to reduce the weight of the entire demonstration box. The top end of the positioning column 400 is installed at the top end of the inner cavity of the metal housing 200. The bottom end of the positioning column 400 extends vertically downward, and it extends to a position close to the bottom end face of the inner cavity of the metal housing 200. The positioning column 400 forms a sliding connection in the vertical direction with the top end of the metal housing 200. An impact ball 500 is fixedly installed at the bottom end of the positioning column 400. In this embodiment, in order to further reduce the weight, the impact ball 500 adopts a hemispherical outer shape structure.
[0029] Continue to refer to the appendix Figure 2 and the appendix Figure 4 As shown, a return spring 300 is also sleeved on the outer peripheral surface of the positioning column 400. One end of the return spring 300 is connected to the impact ball 500, and the other end of the return spring 300 is fixedly installed at the bottom of the top end of the inner cavity of the metal housing 200. The positioning column 400 is driven axially upward by a power device. The upward-moving positioning column 400 then synchronously drives the impact ball 500 upward. After the return spring 300 moves to a preset position, the power device is released. The return spring 300 extends and resets under the action of its own elastic reset force, generating a downward force on the impact ball 500. At the same time, under the action of its own gravity, the impact ball 500 falls vertically downward to conduct an impact test on the product placed below.
[0030] Refer to the appendix Figure 7 As shown, in this embodiment, the power device is manually operated. That is, the power device includes a cover 800. The outer shape of the cover 800 is generally the same as the cross-sectional shape of the metal housing 200. The cover 800 is installed at the top end of the metal housing 200 to block the inner cavity of the metal housing 200, so that the inner cavity of the metal housing 200 can form a closed space structure, and the cover 800 can be separated from the metal housing 200 under the action of an external force. The bottom of the cover 800 is fixedly connected to the top end of the positioning column 400. In this way, when the cover 800 moves away from the top end of the metal housing 200 under the action of an external force (the lifting action of the operator), the upward-moving cover 800 can synchronously drive the positioning column 400 upward, realizing the rise of the impact ball 500 relative to the inner cavity of the metal housing 200, preparing for the fall of the impact ball 500. The reason for preferably adopting the above manual driving method is that when the demonstration box 10 is being demonstrated, the use environment is relatively harsh, and the manual driving method has better adaptability. And adopting the manual driving method, the overall structure is also relatively simple, which can avoid using other automatic driving devices and making the entire demonstration box 10 too heavy and not easy to carry. Of course, in other embodiments, the power device can adopt other common automatic driving structures, such as a motor-driven or cylinder-driven structure.
[0031] In this embodiment, in order to facilitate the operator to intuitively know the impact force at the position where the return spring 300 rises, a scale mark indicating the magnitude of the impact force of the impact ball 500 when the return spring 300 rises to this position is marked on one side (left or right) of the metal housing 200.
[0032] Continue to refer to the appendix Figure 2 and the appendix Figure 4 As shown, a buffer layer 600 and a glass sheet 700 are provided at the bottom end of the inner cavity of the metal housing 200, and the glass sheet 700 is arranged between the buffer layer 600 and the bottom end face of the inner cavity of the metal housing 200. In some embodiments, the thickness of the buffer layer 600 is 3 mm, and the thickness of the glass sheet 700 is 2 mm. Also, in order to improve the impact resistance of the bottom of the metal housing 200, the thickness of the stainless steel material at the bottom of the metal housing 200 is 8 mm, which is higher than the stainless steel thickness of other parts of the metal housing 200.
[0033] To better understand the impact test demonstration box 10 in this embodiment, the following briefly describes its working principle:
[0034] After placing the sample to be tested at the bottom end of the inner cavity of the metal housing 200, the operator drives the positioning column 400 to rise through the power device. The impact ball 500 follows the positioning column 400 and moves upward synchronously. After the impact ball 500 rises to the preset scale mark position, the operator stops pulling the positioning column 400. At this time, the return spring 300 is in a compressed state. Under the action of its own elastic reset force, the return spring 300 extends and resets, applying a downward force to the impact ball. At the same time, under the action of its own gravity, the impact ball 500 falls vertically downward to perform an impact test on the product placed below. That is, by placing the buffer material to be tested on the upper surface of the glass sheet 700 at the bottom end of the inner cavity of the metal housing 200, the tester drives the positioning column 400 and the impact ball 500 to rise to a certain height and then releases them, so that the impact hemisphere 500 generates an impact force on the buffer material and the glass sheet 700 below. By observing whether the glass sheet 700 is cracked or broken, the quality of the impact resistance of the buffer material can be judged. For example, after the impact ball 500 falls from the same height and impacts downward, when the impact ball 500 impacts the ACF material below, the glass bottle 700 remains intact; while when the impact ball 500 impacts the EVA material (Ethylene Vinyl Acetate Copolymer) below, the glass sheet 700 is cracked, which can prove that the buffer performance or the impact force absorption performance of the ACF is better than that of the EVA material.
[0035] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these modifications and variations.
Claims
1. An impact test demonstration box, characterized in that, The impact test demonstration box includes a metal housing, a panel is installed on the front side of the metal housing, the panel forms a vertical sliding connection with the metal housing, a positioning column extending vertically downward is provided at the top end of the inner cavity of the metal housing, a power device is provided at the top end of the metal housing, a shock ball is fixedly installed at the bottom end of the positioning column, the positioning column forms a vertical sliding connection with the top end of the metal housing, the power device is connected to the top end of the positioning column for driving the positioning column to move up and down, a buffer material layer and a glass sheet are provided at the bottom end surface of the inner cavity of the metal housing, the glass sheet is arranged between the buffer material layer and the bottom end surface of the metal housing, a return spring is also sleeved on the outer peripheral surface of the positioning column, one end of the return spring is connected to the shock ball, and the other end of the return spring is fixedly connected to the bottom of the top end of the inner cavity of the metal housing.
2. The impact test demonstration box according to claim 1, characterized in that, The shock ball has a hemispherical outer shape structure.
3. A shock test demonstration box according to any one of claims 1 or 2, characterized in that, The panel is a panel structure made of acrylic material.
4. The impact test demonstration box according to claim 1, characterized in that, A scale mark for identifying the impact force at the corresponding height position of the shock ball is provided on one side of the metal housing.
5. The impact test demonstration box according to claim 1, characterized in that, The metal housing is made of stainless steel.