Force sensing testing device for labor protection kneecap

Abstract

The utility model discloses a force sensing testing device for a labor protection kneecap, which comprises a device body and a kneecap body, the device body is provided with a base, two sides of the base are provided with lifting frames, a screw rod lifting machine is arranged in the base, two sides of the screw rod lifting machine are provided with screw rods, the screw rods are arranged in the lifting frames, and a lifting rod is arranged between the screw rods. The bottom of the lifting rod is provided with a sensor, the bottom of the sensor is provided with a kneecap cover die, and the kneecap body is movably arranged on the kneecap cover die in a sleeving mode. The screw rod lifter is arranged in the base of the device body, the screw rods are arranged on the two sides of the base, the screw rod lifter drives the screw rods to rotate to drive the lifting rod to move up and down, the sensor is arranged in the middle of the lifting rod, the kneecap cover die is arranged at the bottom of the sensor, and the kneecap body is sleeved on the kneecap cover die to move downwards to collide with a fixed part. Collision force is collected through the sensor and displayed in real time through the display screen. The device is novel in structure, can quickly and effectively carry out force sensing test and fatigue test on the labor protection kneecap, and is suitable for popularization.

Description

Technical Field

[0001] This utility model relates to the field of knee protection tools, and more specifically to a force sensing and testing device for knee protection. Background Technology

[0002] In industrial production, such as shipbuilding, construction, and welding, kneeling is often unavoidable. This prolonged kneeling position, with the knees in constant contact with the ground, metal, or other hard objects, easily leads to knee pain, strain, abrasions, and injuries. Therefore, knee braces are necessary for knee protection. Currently available knee braces use a variety of materials for their protective surfaces, but lack a suitable force-sensing testing method. This results in the knee braces failing to provide adequate protection against impacts, reducing their effectiveness and lifespan, and posing safety hazards to the wearer. Therefore, we propose a force-sensing testing device for knee braces. This device uses an energy-saving force sensor to test the built-in protective surface, revealing its protective effect and improving the overall safety of the knee brace.

[0003] To broaden the applicability of construction worker's knee protectors, making them fit the knee better and improving safety and user experience, Chinese Patent (Authorization Announcement No.: CN217065466U) discloses a construction worker's knee protector suitable for different groups of people. This utility model includes a protective cap, an elastic base layer, and fixing straps. The protective cap includes a fixed cap and a detachable cap. The fixed cap is fixed to the elastic base layer, and the detachable cap is detachably connected to the fixed cap. The fixing straps are located on both sides of the elastic base layer. This utility model allows for adjustment of the cap size by using the detachable cap, increasing the protective area. When the user is larger or the construction environment has special protection requirements, the detachable cap can be installed to improve safety. When the user is smaller, only the fixed cap needs to be used, making it suitable for different groups of people and different environments. The detachable cap and the fixed cap are movably connected, allowing the angle of the detachable cap to be adjusted according to usage needs, further improving safety.

[0004] The solution still has some shortcomings in its application. Since the main function of the protective armor when wearing a knee brace is to resist external impact and provide effective protection for the knee, the knee brace needs to be tested for force sensing when worn to improve safety. Otherwise, the protective armor may not be of good quality and may not provide good protection when impacted, leading to injury to the wearer. Therefore, the structure of the force sensing testing device needs to be improved to achieve fast and accurate testing results and improve the protective effect of the knee brace. Utility Model Content

[0005] This utility model discloses a force sensing testing device for knee protection, the main purpose of which is to overcome the above-mentioned shortcomings and disadvantages of the existing technology:

[0006] The technical solution adopted in this utility model is as follows:

[0007] A force-sensing testing device for knee brace protection includes a device body and a knee brace body. The device body has a base with lifting frames on both sides. A screw jack is built into the base, with screws on both sides of the screw jack. The screws are built into the lifting frames, and a lifting rod is provided between the screws. A sensor is installed at the bottom of the lifting rod, and a knee brace mold is installed at the bottom of the sensor. The knee brace body is movably fitted onto the knee brace mold.

[0008] Furthermore, the knee brace body has a built-in protective plate.

[0009] Furthermore, a fixing plate is fixedly provided on the top of the base.

[0010] Furthermore, a balance bar is provided on one side of the device body, and a fixing block is correspondingly installed on one side of the lifting bar, which is connected to the balance bar.

[0011] Furthermore, a display screen is provided on one side of the device body, and the sensor is connected to the display screen.

[0012] Furthermore, the screw jack is equipped with a motor in the middle, which drives the screw to rotate, and the rotation of the screw drives the lifting rod to move up and down.

[0013] Furthermore, a control panel is installed on one side of the base, which is connected to the control of the screw jack.

[0014] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0015] This invention firstly utilizes a screw jack built into the base of the device body, with screws on both sides. The screw jack drives the screws to rotate, causing the lifting rod to move up and down. Next, a sensor is installed in the middle of the lifting rod, and a knee brace mold is installed at the bottom of the sensor. The knee brace is fitted onto the knee brace mold and moves downward to collide with a fixed plate. The force of the collision is collected by the sensor and displayed in real time on a display screen for the tester to view. Finally, the lifting rod can move up and down cyclically driven by the screw jack, which can also be used to perform fatigue testing on the protective plate built into the knee brace. This dual-purpose design is highly practical. This invention has a novel structure, ingenious design, and strong practicality, enabling rapid and effective force sensing and fatigue testing of knee braces, making it suitable for widespread application. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the knee brace mold and sensor connection of this utility model.

[0018] Figure 3 This is a front view structural diagram of the screw jack of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the knee brace body of this utility model. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3 As shown, a force-sensing testing device for knee brace protection includes a device body 1 and a knee brace body 2. The device body 1 is provided with a base 3, and lifting frames 4 are provided on both sides of the base 3. A screw jack 5 is built into the base 3. Screws 6 are provided on both sides of the screw jack 5. The screws 6 are built into the lifting frames 4. A lifting rod 7 is provided between the screws 6. A sensor 8 is installed at the bottom of the lifting rod 7. A knee brace mold 9 is installed at the bottom of the sensor 8. The knee brace body 2 is movably fitted onto the knee brace mold 9.

[0022] Furthermore, the knee brace body 2 has a built-in protective plate 21.

[0023] Furthermore, a fixing plate 10 is fixedly provided on the top of the base 3.

[0024] Furthermore, a balance bar 11 is provided on one side of the device body 1, and a fixing block 12 is correspondingly installed on one side of the lifting rod 7, the fixing block 12 being connected to the balance bar 11.

[0025] Furthermore, a display screen 13 is provided on one side of the device body 1, and the sensor 8 is connected to the display screen 13.

[0026] Furthermore, the screw jack 5 is equipped with a motor 14 in the middle, which drives the screw 6 to rotate, and the rotation of the screw 6 drives the lifting rod 7 to move up and down.

[0027] Furthermore, a control panel 15 is installed on one side of the base 3, which is connected to the screw jack 5 for control.

[0028] [Example]

[0029] First, the knee brace body 2 is placed on the knee brace mold 9. At this time, the protective plate 21 built into the knee brace body 2 is facing the fixed plate 10 at the top of the base 3. Next, the screw jack 5 is started through the control panel 15. The screw jack 5 drives the screw 6 to rotate. The rotation of the screw 6 drives the lifting rod 7 to move downward, so that the protective plate 21 built into the knee brace body 2 collides with the fixed plate 10. The force of the collision is transmitted to the sensor 8 and displayed on the display screen 13. During the descent, the lifting rod 7 is kept stable by the balance bar 11 to avoid displacement when it collides with the fixed plate 10. Finally, the knee brace body 2 can also be subjected to fatigue testing by driving the screw jack 5 to move up and down in a cyclical manner.

[0030] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0031] This invention firstly utilizes a screw jack built into the base of the device body, with screws on both sides. The screw jack drives the screws to rotate, causing the lifting rod to move up and down. Next, a sensor is installed in the middle of the lifting rod, and a knee brace mold is installed at the bottom of the sensor. The knee brace is fitted onto the knee brace mold and moves downward to collide with a fixed plate. The force of the collision is collected by the sensor and displayed in real time on a display screen for the tester to view. Finally, the lifting rod can move up and down cyclically driven by the screw jack, which can also be used to perform fatigue testing on the protective plate built into the knee brace. This dual-purpose design is highly practical. This invention has a novel structure, ingenious design, and strong practicality, enabling rapid and effective force sensing and fatigue testing of knee braces, making it suitable for widespread application.

[0032] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A force sensing test device for labor protection knees, characterized by: Including device body and kneecap body, the device body is equipped with the base, both sides of the base are equipped with lifting frame, the base is built-in screw rod elevator, both sides of the screw rod elevator are equipped with screw rod, the screw rod is built-in in the lifting frame, the lifting rod is equipped between the screw rod, the bottom of the lifting rod is equipped with sensor, the bottom of the sensor is equipped with kneecap sleeve mold, the kneecap body is movably sleeved in the kneecap sleeve mold.

2. The force sensing test device for labor protection knee according to claim 1, characterized in that: The kneecap body is built-in protection sheet.

3. The force sensing test device for labor protection knee according to claim 1, characterized in that: The base top is fixedly provided with a fixed plate.

4. The force sensing test device for labor protection knee according to claim 1, characterized in that: One side of the device body is provided with a balance bar, and a fixed block is correspondingly arranged on one side of the lifting rod, and the fixed block is connected with the balance bar.

5. The force sensing test device for labor protection knee according to claim 1, characterized in that: One side of the device body is provided with a display screen, and the sensor is connected with the display screen.

6. The force sensing test device for labor protection knee according to claim 1, characterized in that: A motor is arranged in the screw rod elevator, the motor drives the screw rod to rotate, and the screw rod drives the lifting rod to move up and down.

7. The force sensing test device for labor protection knee according to claim 1, characterized in that: A control panel is arranged on one side of the base, and the control panel is connected with the screw rod elevator.

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