Stress test device with test force overload protection

Abstract

The utility model discloses a stress test device with test force overload protection, which comprises a bottom plate, the upper part of the bottom plate is provided with a lifting adjusting seat, the side surface of the lifting adjusting seat is provided with a supporting block, and the supporting block moves up and down through the lifting adjusting seat. A sample is placed on the supporting plate, the motor drives the threaded rod to rotate, the supporting plate in threaded connection with the threaded rod drives the supporting plate to move, the supporting plate is located in the protection plate, the installation insertion plate forms a complete protection space, the lifting adjusting base is started to drive the supporting block to move up and down, and therefore the height is adjusted; the overload protection device drives the threaded rod to rotate in the threaded hole, the telescopic column in threaded connection with the threaded rod drives the pressure head to make contact with a sample, pressure is continuously applied to the sample through the pressure head, the pressure sensor monitors and feeds back the magnitude of loading force in real time, and when it is monitored that the pressure exceeds a set value, the overload protection device rapidly cuts off a power source of the testing machine. The testing machine is ensured to stop loading, and safe loading is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of stress test devices, and more specifically to a stress test device with test force overload protection. Background Technique

[0002] A stress test device is a precision device designed specifically for testing the mechanical properties of materials. Its core value lies in accurately controlling the loading force to simulate the stress conditions that materials may encounter in actual use environments, thereby evaluating key performance indicators such as the strength, toughness, and durability of materials. When designing this device, special emphasis is placed on safety, accuracy, ease of operation, and maintainability, ensuring its wide application in multiple fields such as scientific research, engineering, and quality control.

[0003] Existing stress test devices lack certain safety protection devices and overload protection measures during sample testing, making it easy to cause safety accidents. Therefore, a new technical solution is needed to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stress test device with test force overload protection, which solves the problem that existing stress test devices lack certain safety protection devices and overload protection measures during sample testing, making it easy to cause safety accidents.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A stress test device with test force overload protection, comprising: a bottom plate, an elevation adjustment seat is arranged on the upper part of the bottom plate, and a support block is arranged on the side of the elevation adjustment seat. The support block moves up and down through the elevation adjustment seat. A driver is arranged on the upper part of the support block, and an overload protection device is arranged on the side of the driver. A fixed column is arranged on the lower part of the support block, and a telescopic column is arranged inside the fixed column. A threaded hole is arranged inside the telescopic column. An adjustment rod is arranged at the power output end of the driver, and the adjustment rod extends into the threaded hole and is threadedly connected thereto. A pressure head is arranged at the lower part of the telescopic column, and several groups of pressure sensors are arranged inside the pressure head. A protective plate is arranged on the upper part of the bottom plate, and a card slot is arranged inside the protective plate. A plug board is arranged inside the card slot, and the plug board is slidably connected with the card slot. A motor is arranged on the side of the protective plate, and a screw rod is arranged at the power output end of the motor. A support plate is arranged on the surface of the screw rod, and the connection part between the support plate and the screw rod is threadedly connected.

[0006] As a preferred embodiment of the utility model, a limiting block is arranged inside the fixed column, and the limiting block is located at the opening of the fixed column.

[0007] As a preferred embodiment of the utility model, a control host is arranged on the upper part of the bottom plate, and the control host is electrically connected to the control circuit through a wire.

[0008] As a preferred embodiment of the present utility model, several groups of reinforcing ribs are arranged on the surface of the pressing head, and the reinforcing ribs are distributed in a circular pattern.

[0009] As a preferred embodiment of the present utility model, a base is arranged on the upper part of the bottom plate, and the base is located inside the protection plate. A through hole matching the base is arranged at the bottom of the support plate.

[0010] As a preferred embodiment of the present utility model, several groups of pressure sensors are arranged, and one group of them is located at the center, and they are distributed in a circular pattern with the pressure sensors.

[0011] As a preferred embodiment of the present utility model, the overload protection device includes a sensor interface, a signal processor, a control unit, an execution structure, and an alarm system.

[0012] As a preferred embodiment of the present utility model, an anti-slip pad is fixedly installed on the surface of the support plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, a lifting adjustment seat is arranged on the upper part of the bottom plate, and a support block is arranged on the side of the lifting adjustment seat. The support block moves up and down through the lifting adjustment seat. A driver is arranged on the upper part of the support block, and an overload protection device is arranged on the side of the driver. A fixed column is arranged on the lower part of the support block, and a telescopic column is arranged inside the fixed column. A threaded hole is arranged inside the telescopic column. A screw rod is arranged at the power output end of the driver, and the screw rod extends into the threaded hole and is threadedly connected thereto. A pressing head is arranged on the lower part of the telescopic column, and several groups of pressure sensors are arranged inside the pressing head. A protection plate is arranged on the upper part of the bottom plate, and a card slot is arranged inside the protection plate. An insertion plate is arranged inside the card slot, and the insertion plate is slidably connected with the card slot. A motor is arranged on the side of the protection plate, and a screw rod is arranged at the power output end of the motor. A support plate is arranged on the surface of the screw rod, and the connection part of the support plate and the screw rod is threadedly connected. When in use, the sample is placed on the support plate, the motor drives the screw rod to rotate, so that the support plate threadedly connected therewith drives the support plate to move, and it is located inside the protection plate. The insertion plate is installed to form a complete protection space. The lifting adjustment seat is started to drive the support block to move up and down, so as to adjust the height. The driver is started to drive the screw rod to rotate in the threaded hole, so that the telescopic column threadedly connected therewith drives the pressing head to contact the sample. The pressing head continuously applies pressure to the sample. The pressure sensors monitor and feedback the magnitude of the loading force in real time. When it is monitored that the pressure exceeds the set value, the overload protection device quickly cuts off the power source of the testing machine to ensure that the testing machine stops loading and realizes safe loading. Description of the Drawings

[0015] Figure 1 This is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 This is the front structural schematic diagram of the present utility model;

[0017] Figure 3 This is the side structural schematic diagram of the present utility model;

[0018] Figure 4 This is the top structural schematic diagram of the present utility model;

[0019] Figure 5 This is the structural schematic diagram of the pressure head of the present utility model;

[0020] Figure 6 This is the schematic diagram of the principle of the overload protection device of the present utility model.

[0021] In the figure: 1, bottom plate; 2, control host; 3, lifting adjustment seat; 4, support block; 5, protection plate; 6, insertion plate; 7, pressure head; 8, support plate; 9, anti-slip pad; 10, base; 11, fixed column; 12, telescopic column; 13, driver; 14, overload protection device; 15, screw; 16, threaded hole; 17, limit hole; 18, reinforcing rib; 19, motor; 20, screw; 21, card slot; 22, pressure sensor. Specific embodiments

[0022] 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1-6, the present utility model provides a technical solution: a stress test device with overload protection for test force, including: a bottom plate 1, an elevating and adjusting seat 3 is arranged on the upper part of the bottom plate 1, and a support block 4 is arranged on the side of the elevating and adjusting seat 3. The support block 4 moves up and down through the elevating and adjusting seat 3. A driver 13 is arranged on the upper part of the support block 4, and an overload protection device 14 is arranged on the side of the driver 13. A fixed column 11 is arranged on the lower part of the support block 4, and a telescopic column 12 is arranged inside the fixed column 11. A threaded hole 16 is arranged inside the telescopic column 12. A regulating rod 15 is arranged at the power output end of the driver 13, and the regulating rod 15 extends into the threaded hole 16 and is threadedly connected thereto. A pressure head 7 is arranged at the lower part of the telescopic column 12, and several groups of pressure sensors 22 are arranged inside the pressure head 7. A protective plate 5 is arranged on the upper part of the bottom plate 1, and a card slot 21 is arranged inside the protective plate 5. An insertion plate 6 is arranged inside the card slot 21, and the insertion plate 6 is slidably connected with the card slot 21. A motor 19 is arranged on the side of the protective plate 5, and a screw rod 20 is arranged at the power output end of the motor 19. A support plate 8 is arranged on the surface of the screw rod 20, and the connection part of the support plate 8 and the screw rod 20 is threadedly connected. An elevating and adjusting seat 3 is arranged on the upper part of the bottom plate 1, and a support block 4 is arranged on the side of the elevating and adjusting seat 3. The support block 4 moves up and down through the elevating and adjusting seat 3. A driver 13 is arranged on the upper part of the support block 4, and an overload protection device 14 is arranged on the side of the driver 13. A fixed column 11 is arranged on the lower part of the support block 4, and a telescopic column 12 is arranged inside the fixed column 11. A threaded hole 16 is arranged inside the telescopic column 12. A screw rod 20 is arranged at the power output end of the driver 13, and the screw rod 20 extends into the threaded hole 16 and is threadedly connected thereto. A pressure head 7 is arranged at the lower part of the telescopic column 12, and several groups of pressure sensors 22 are arranged inside the pressure head 7. A protective plate 5 is arranged on the upper part of the bottom plate 1, and a card slot 21 is arranged inside the protective plate 5. An insertion plate 6 is arranged inside the card slot 21, and the insertion plate 6 is slidably connected with the card slot 21. A motor 19 is arranged on the side of the protective plate 5, and a screw rod 20 is arranged at the power output end of the motor 19. A support plate 8 is arranged on the surface of the screw rod 20, and the connection part of the support plate 8 and the screw rod 20 is threadedly connected. When in use, place the sample on the support plate 8, drive the screw rod 20 to rotate through the motor 19, so that the support plate 8 threadedly connected therewith drives the support plate 8 to move, and make it located inside the protective plate 5. Install the insertion plate 6 to form a complete protection space. The elevating and adjusting seat 3 is started to drive the support block 4 to move up and down, thereby adjusting the height. The driver 13 is started to drive the screw rod 20 to rotate in the threaded hole 16, so that the telescopic column 12 threadedly connected therewith drives the pressure head 7 to contact the sample. Continuously apply pressure to the sample through the pressure head 7. The pressure sensors 22 monitor and feedback the magnitude of the applied force in real time. When it is monitored that the pressure exceeds the set value, the overload protection device 14 quickly cuts off the power source of the testing machine to ensure that the testing machine stops loading and realizes safe loading.

[0024] Further improved, such as Figure 3 shown: A limiting block 17 is arranged inside the fixed column 11, and the limiting block 17 is located at the opening of the fixed column 11. This setting prevents the telescopic column 12 from rotating and disengaging.

[0025] Further improved, such as Figure 1 shown: A control host 2 is arranged on the upper part of the bottom plate 1, and the control host 2 is electrically connected to the control circuit through a wire. This setting facilitates operation control.

[0026] Further improved, such as Figure 3 shown: A number of groups of reinforcing ribs 18 are arranged on the surface of the indenter 7, and the reinforcing ribs 18 are distributed in a circular pattern. This setting ensures the structural strength of the indenter 7.

[0027] Further improved, such as Figure 2 shown: A base 10 is arranged on the upper part of the bottom plate 1, and the base 10 is located inside the protective plate 5. A through hole matching the base 10 is arranged at the bottom of the support plate 8. This setting increases the supporting force of the support plate 8.

[0028] Further improved, such as Figure 5 shown: A number of groups of pressure sensors 22 are arranged, and one group is located at the center, and they are distributed in a circular pattern with the pressure sensors 22. This setting increases the detection range and ensures the monitoring accuracy.

[0029] Further improved, such as Figure 6 shown: The overload protection device 14 includes a sensor interface, a signal processor, a control unit, an actuator and an alarm system. The sensor interface is responsible for receiving the real-time signal from the force value sensor of the testing machine to ensure that the overload protection device 14 can accurately obtain the current test force value. The signal processor amplifies, filters and processes the signal received by the sensor interface to improve the accuracy and reliability of the signal. When the signal processor detects that the test force reaches or exceeds the preset upper limit, the control unit will be immediately activated to issue an instruction to stop loading. According to the instruction of the control unit, the actuator will quickly cut off the power source of the testing machine to ensure that the testing machine stops loading. It is used to remind the operator to pay attention when overload occurs to ensure that they can take corresponding measures in time.

[0030] Further improved, such as Figure 2 、 6 shown: An anti-slip pad 9 is fixedly installed on the surface of the support plate 8.

[0031] Working principle: A lifting adjustment seat 3 is arranged on the upper part of the bottom plate 1, and a support block 4 is arranged on the side of the lifting adjustment seat 3. The support block 4 moves up and down through the lifting adjustment seat 3. A driver 13 is arranged on the upper part of the support block 4, and an overload protection device 14 is arranged on the side of the driver 13. A fixed column 11 is arranged on the lower part of the support block 4, and a telescopic column 12 is arranged inside the fixed column 11. A threaded hole 16 is arranged inside the telescopic column 12. A screw rod 20 is arranged at the power output end of the driver 13, and the screw rod 20 extends into the threaded hole 16 and is threadedly connected thereto. A pressure head 7 is arranged at the lower part of the telescopic column 12, and several groups of pressure sensors 22 are arranged inside the pressure head 7. A protective plate 5 is arranged on the upper part of the bottom plate 1, and a card slot 21 is arranged inside the protective plate 5. A plug board 6 is arranged inside the card slot 21, and the plug board 6 is slidably connected with the card slot 21. A motor 19 is arranged on the side of the protective plate 5, and a screw rod 20 is arranged at the power output end of the motor 19. A support plate 8 is arranged on the surface of the screw rod 20, and the connection part of the support plate 8 and the screw rod 20 is threadedly connected. When in use, place the sample on the support plate 8, drive the screw rod 20 to rotate through the motor 19, so that the support plate 8 threadedly connected thereto drives the support plate 8 to move, and make it located inside the protective plate 5. Install the plug board 6 to form a complete protective space. The lifting adjustment seat 3 is started to drive the support block 4 to move up and down, so as to adjust the height. The driver 13 is started to drive the screw rod 20 to rotate in the threaded hole 16, so that the telescopic column 12 threadedly connected thereto drives the pressure head 7 to contact the sample. Continuously apply pressure to the sample through the pressure head 7. The pressure sensors 22 monitor and feedback the magnitude of the applied force in real time. When it is monitored that the pressure exceeds the set value, the overload protection device 14 quickly cuts off the power source of the testing machine to ensure that the testing machine stops loading and realizes safe loading.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0033] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stress test device with test force overload protection, characterized in that: include: A base plate (1), wherein a lifting adjustment seat (3) is arranged on the upper part of the base plate (1), and a support block (4) is arranged on the side of the lifting adjustment seat (3), wherein the support block (4) moves up and down through the lifting adjustment seat (3), wherein a driver (13) is arranged on the upper part of the support block (4), and an overload protection device (14) is arranged on the side of the driver (13), wherein a fixing column (11) is arranged on the lower part of the support block (4), and a telescopic column (12) is arranged inside the fixing column (11), and a threaded hole (16) is arranged inside the telescopic column (12), and an adjusting rod (15) is arranged at the power output end of the driver (13), and the adjusting rod (15) extends to the threaded hole (16). The telescopic column (12) is provided with a pressure head (7) at the bottom and a plurality of pressure sensors (22) are provided inside the pressure head (7). The top of the bottom plate (1) is provided with a protective plate (5) and a card slot (21) is provided inside the protective plate (5). A plug plate (6) is provided inside the card slot (21) and the plug plate (6) and the card slot (21) are slidably connected. A motor (19) is provided on the side of the protective plate (5) and a screw (20) is provided at the power output end of the motor (19). A support plate (8) is provided on the surface of the screw (20) and the support plate (8) and the screw (20) are connected at the connection point by threads.

2. A stress test device with test force overload protection according to claim 1, characterized in that: A limiting block (17) is arranged inside the fixing column (11), and the limiting block (17) is located at the opening of the fixing column (11).

3. A stress test device with test force overload protection according to claim 1, characterized in that: A control host (2) is arranged on the upper part of the base plate (1), and the control host (2) is electrically connected to the control circuit via a wire.

4. A stress test device with test force overload protection according to claim 1, characterized in that: The surface of the pressure head (7) is provided with a plurality of groups of reinforcing ribs (18), and the reinforcing ribs (18) are distributed in a circumferential manner.

5. A stress test device with test force overload protection according to claim 1, characterized in that: A base (10) is provided on the upper part of the bottom plate (1) and the base (10) is located on the inner side of the protective plate (5); a through hole matching the base (10) is provided at the bottom of the support plate (8).

6. A stress test device with test force overload protection according to claim 1, characterized in that: The pressure sensors (22) are arranged in a plurality of groups, one of which is located at the center and is distributed in a circumference with the pressure sensors (22).

7. A stress test device with test force overload protection according to claim 1, characterized in that: The overload protection device (14) comprises a sensor interface, a signal processor, a control unit, an execution structure and an alarm system.

8. A stress test device with test force overload protection according to claim 1, characterized in that: An anti-slip pad (9) is fixedly mounted on the surface of the support plate (8).

Images