Hardness detection device with protection function
By introducing a transparent protective shell and limiting components into the hardness testing device, the safety hazards and data deviations during the testing process of the hardness testing device are solved, achieving both safety protection and accuracy of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 四川国诚检测有限公司
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-17
AI Technical Summary
Existing hardness testing devices have safety hazards and test data deviations when testing building materials, including material breakage, splashing, and failure to effectively limit movement.
A hardness testing device with protective function was designed, which adopts a transparent protective shell and a limiting component. The transparent protective shell prevents the material from breaking or splashing, and the limiting component fixes the building material with a bidirectional threaded rod driven by a motor to ensure its stable position.
It achieves user safety protection and test data accuracy, prevents materials from breaking or splashing, and ensures the accuracy and reliability of test results.
Smart Images

Figure CN224137095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building material testing technology, specifically a hardness testing device with protective function. Background Technology
[0002] Building material testing is of paramount importance in construction projects. Rigorous testing ensures that building materials meet design requirements and quality standards, thereby guaranteeing the overall quality and safety of buildings. Furthermore, testing can effectively prevent and reduce engineering accidents caused by material quality issues, reducing the risk of economic losses and personal injury.
[0003] In building material testing, hardness testing devices are an important type of equipment. They can effectively test the hardness of building materials. In construction and civil engineering, hardness testing devices can be used to test the hardness of building materials such as concrete and stone to ensure their quality and durability.
[0004] In the process of developing this utility model, the inventors discovered the following problems with the existing technology: 1. When existing hardness testing devices test building materials, the building materials are usually directly exposed. When the material itself has defects, or when the force applied during the test is too large or the testing method is improper, the surface of the material may crack or shatter, posing a threat to the safety of the user; 2. When existing hardness testing devices test building materials, they do not effectively limit the building materials, and the material moves, resulting in deviations in the test data. Utility Model Content
[0005] The purpose of this utility model is to provide a hardness testing device with protective functions to solve the problems of inconvenient protection and inconvenient limiting of hardness testing devices mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a hardness testing device with protective functions, including a hardness testing device body, an adjustment knob and switch installed on one side surface of the hardness testing device body, a display screen installed on the other side surface of the hardness testing device body, a testing head installed on the top and bottom sides of the hardness testing device body, a protective shell installed on the outer wall of the testing head, an electric telescopic rod installed on the bottom and top sides of the hardness testing device body, a support platform installed at the top of the electric telescopic rod, positioning blocks installed on both sides of the support platform, positioning rods installed on the inner walls of the positioning blocks, and a limiting component installed on the top surface of the support platform.
[0006] The limiting component includes a support plate mounted on the top surface of the support platform. A first housing is mounted on one side surface of the support plate, and a second housing is mounted on the other side surface of the support plate. A motor is mounted on one side surface of the first housing. A bidirectional threaded rod is mounted on the output end of the motor. A first limiting plate and a second limiting plate are mounted on the outer wall of the bidirectional threaded rod. A sliding rod is mounted on the inner wall of one end of the first limiting plate and the second limiting plate.
[0007] More preferably, the motor forms a transmission mechanism with the first limiting plate and the second limiting plate via a bidirectional threaded rod.
[0008] More preferably, the first limiting plate and the second limiting plate together with the slide rod form a sliding mechanism.
[0009] More preferably, the electric telescopic rod and the support platform constitute a lifting mechanism.
[0010] More preferably, there are two positioning rods, and the inner wall of the positioning block has a circular hole with an internal size structure that matches the external size structure of the positioning rod, and the positioning block and the positioning rod form a sliding mechanism.
[0011] More preferably, one side surface of the hardness testing device body is provided with a slide rail, and one side surface of the support platform is provided with a groove whose internal dimensions are consistent with the external dimensions of the slider.
[0012] More preferably, the protective shell is made transparent.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention employs a design that facilitates protection. The protective shell is transparent, allowing users to view the testing process in real time. Both sides of the protective shell have mounting grooves whose internal dimensions match the external dimensions of the positioning block. When the hardness testing device tests building materials, the protective shell can fit against the outer wall of the support platform, activating its protective function to prevent the material from breaking or splashing and endangering the user's safety.
[0015] This invention employs a design that facilitates positioning. When the building material to be tested is placed in the middle of the support plate, the motor can be started. The motor drives the bidirectional threaded rod to rotate, causing the first and second positioning plates to come together. This effectively positions the outer wall of the building material, fixing it in the correct position and preventing deviations in test data due to material movement or unstable positions. This ensures the accuracy and reliability of the hardness test results. Attached Figure Description
[0016] Figure 1This is a front view structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 3 This is an enlarged structural schematic diagram of the protective shell of this utility model;
[0019] Figure 4 This is an exploded magnified structural diagram of the limiting component of this utility model.
[0020] In the diagram: 1. Hardness testing device body; 2. Adjustment knob; 3. Switch; 4. Display screen; 5. Testing head; 6. Protective shell; 7. Electric telescopic rod; 8. Support platform; 9. Positioning block; 10. Positioning rod; 11. Limiting assembly; 1101. Support plate; 1102. First shell; 1103. Second shell; 1104. Motor; 1105. Bidirectional threaded rod; 1106. First limiting plate; 1107. Second limiting plate; 1108. Slide rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a hardness testing device with protective function, including a hardness testing device body 1, an adjustment knob 2 and a switch 3 installed on one side surface of the hardness testing device body 1, a display screen 4 installed on the other side surface of the hardness testing device body 1, a testing head 5 installed on the top and bottom sides of the hardness testing device body 1, a protective shell 6 installed on the outer wall of the testing head 5, an electric telescopic rod 7 installed on the bottom and top sides of the hardness testing device body 1, a support platform 8 installed at the top of the electric telescopic rod 7, positioning blocks 9 installed on both sides of the support platform 8, positioning rods 10 installed on the inner wall of the positioning blocks 9, and a limit component 11 installed on the top surface of the support platform 8.
[0023] The limiting assembly 11 includes a support plate 1101 mounted on the top surface of the support platform 8. A first housing 1102 is mounted on one side surface of the support plate 1101, and a second housing 1103 is mounted on the other side surface of the support plate 1101. A motor 1104 is mounted on one side surface of the first housing 1102. A bidirectional threaded rod 1105 is mounted on the output end of the motor 1104. A first limiting plate 1106 and a second limiting plate 1107 are mounted on the outer wall of the bidirectional threaded rod 1105. A sliding rod 1108 is mounted on the inner wall of one end of the first limiting plate 1106 and the second limiting plate 1107.
[0024] In this embodiment, as Figure 4 As shown, the motor 1104, through the bidirectional threaded rod 1105, forms a transmission mechanism with the first limiting plate 1106 and the second limiting plate 1107. With this design, when the building material to be tested is placed in the middle of the support plate 1101, the motor 1104 can be started. The motor 1104 drives the bidirectional threaded rod 1105 to rotate, causing the first limiting plate 1106 and the second limiting plate 1107 to come together. This can effectively limit the outer wall of the building material, fixing the building material to be tested in the correct position and avoiding deviations in test data due to material movement or unstable position. This ensures the accuracy and reliability of the hardness test results.
[0025] In this embodiment, as Figure 4 As shown, the first limiting plate 1106 and the second limiting plate 1107 together with the slide rod 1108 form a sliding mechanism. With this design, when the first limiting plate 1106 and the second limiting plate 1107 are close together or separate, the slide rod 1108 can position the movement of the first limiting plate 1106 and the second limiting plate 1107 to prevent them from shifting and affecting the accuracy of the limiting.
[0026] In this embodiment, as Figure 1 As shown, the electric telescopic rod 7 and the support platform 8 constitute a lifting mechanism; through this design, the electric telescopic rod 7 can be activated, and the support platform 8 can be extended and retracted by the electric telescopic rod 7, so that the building materials can be raised to a suitable height, making it convenient to test the building materials through the hardness testing device body 1.
[0027] In this embodiment, as Figure 1 As shown, there are two positioning rods 10, and the inner wall of the positioning block 9 has a circular hole with an internal size structure that matches the external size structure of the positioning rod 10. The positioning block 9 and the positioning rod 10 form a sliding mechanism. With this design, when the support platform 8 rises and falls, the positioning block 9 can slide on the outer wall of the positioning rod 10, and the positioning rod 10 can position the movement of the support platform 8 to prevent the support platform 8 from shifting, thus effectively improving the adjustment accuracy of the support platform 8.
[0028] In this embodiment, as Figure 2 As shown, a slide rail is provided on one side surface of the hardness testing device body 1, and a slide groove with an internal dimension structure that matches the external dimension structure of the slider is provided on one side surface of the support platform 8. With this design, when the support platform 8 rises and falls, it can slide on the outer wall of the slide rail through the slide groove, which can position the movement of the support platform 8, prevent the support platform 8 from deviating, and effectively improve the adjustment accuracy of the support platform 8.
[0029] In this embodiment, as Figure 2 As shown, the protective shell 6 is transparent; this design allows users to view the testing process in real time. Both sides of the protective shell 6 have mounting grooves with internal dimensions that match the external dimensions of the positioning block 9. When the hardness testing device body 1 tests the building material, the protective shell 6 can fit against the outer wall of the support platform 8, thus providing protection for the user.
[0030] The method of use and advantages of this utility model: The hardness testing device with protective function operates as follows:
[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the building material to be tested is placed in the middle of the support plate 1101, the motor 1104 can be started. The motor 1104 drives the bidirectional threaded rod 1105 to rotate, causing the first limiting plate 1106 and the second limiting plate 1107 to come together, which can effectively limit the outer wall of the building material. Then, the support platform 8 is adjusted by the extension and retraction of the electric telescopic rod 7, which can raise the building material to a suitable height. When the support platform 8 rises and falls, it can slide on the outer wall of the positioning rod 10 through the positioning block 9, which positions the movement of the support platform 8 and prevents the support platform 8 from deviating. When the support platform 8 rises and falls, it can also slide on the outer wall of the slide rail through the slide groove, which can position the movement of the support platform 8 and prevent the support platform 8 from deviating, effectively improving the adjustment accuracy of the support platform 8. When the hardness testing device body 1 tests the building material, the protective shell 6 can fit against the outer wall of the support platform 8 to protect the user. At the same time, the protective shell 6 is transparent, which allows real-time viewing of the testing process.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hardness detection device with a protection function, comprising a hardness detection device body (1), characterized in that: An adjustment knob (2) and a switch (3) are installed on one side of the hardness testing device body (1). A display screen (4) is installed on the other side of the hardness testing device body (1). A testing head (5) is installed on the top and bottom sides of the hardness testing device body (1). A protective shell (6) is installed on the outer wall of the testing head (5). An electric telescopic rod (7) is installed on the bottom and top sides of the hardness testing device body (1). A support platform (8) is installed on the top of the electric telescopic rod (7). A positioning block (9) is installed on both sides of the support platform (8). A positioning rod (10) is installed on the inner wall of the positioning block (9). A limit component (11) is installed on the top surface of the support platform (8). The limiting component (11) includes a support plate (1101) mounted on the top surface of the support platform (8). A first housing (1102) is mounted on one side surface of the support plate (1101), and a second housing (1103) is mounted on the other side surface of the support plate (1101). A motor (1104) is mounted on one side surface of the first housing (1102). A bidirectional threaded rod (1105) is mounted on the output end of the motor (1104). A first limiting plate (1106) and a second limiting plate (1107) are mounted on the outer wall of the bidirectional threaded rod (1105). A slide rod (1108) is mounted on the inner wall of one end of the first limiting plate (1106) and the second limiting plate (1107).
2. The hardness detection device with a protection function according to claim 1, characterized in that: The motor (1104) forms a transmission mechanism with the first limiting plate (1106) and the second limiting plate (1107) through a bidirectional threaded rod (1105).
3. The hardness detection device with a protection function according to claim 1, characterized in that: The first limiting plate (1106) and the second limiting plate (1107) together with the slide rod (1108) constitute a sliding mechanism.
4. The hardness detection device with a protection function according to claim 1, characterized in that: The electric telescopic rod (7) and the support platform (8) constitute a lifting mechanism.
5. The hardness detection device with a protection function according to claim 1, characterized in that: There are two positioning rods (10), and the inner wall of the positioning block (9) has a circular hole with an internal size structure that is consistent with the external size structure of the positioning rod (10). The positioning block (9) and the positioning rod (10) form a sliding mechanism.
6. The hardness detection device with a protection function according to claim 1, characterized in that: The hardness testing device body (1) has a slide rail on one side surface, and the support platform (8) has a groove on one side surface whose internal dimensions are consistent with the external dimensions of the slide rail.
7. The hardness detection device with a protection function according to claim 1, characterized in that: The protective shell (6) is made transparent.