Force testing device for knee pad bandage

Abstract

The utility model discloses a force testing device for a kneecap bandage, which comprises a device body and a kneecap body, a base is arranged at the bottom of the device body, a fixed seat is arranged on the base, a first circular cylinder is detachably arranged above the fixed seat, the kneecap body is movably sleeved on the first circular cylinder, lifting frames are arranged on two sides of the base, and screw rods are arranged in the lifting frames. A lifting rod is arranged between the lead screws, a sensor is arranged on the middle section of the lifting rod, and a second circular cylinder is arranged at the bottom of the sensor. The screw rod lifter is arranged on the base, the first circular cylinder is arranged on the top of the base, and the knee cap sleeve is fixedly arranged on the first circular cylinder in a sleeving mode; lead screws are arranged on the two sides of the device body and connected with a lead screw lifter, a lifting rod is arranged between the lead screws, a sensor and a second circular cylinder are arranged in the middle section of the lifting rod, and the bandage is stretched upwards to penetrate through the second circular cylinder to be fixed, so that a stretching strength test can be performed; the force value can be displayed through the display screen; the device is novel in structure, easy to operate, rapid, accurate and suitable for popularization.

Description

Technical Field

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

[0002] Knee braces are items used to protect the knees, providing protection during sports activities, warmth, and joint care. Common knee braces in daily life can be broadly categorized into thermal and health-promoting knee braces and sports knee braces. Thermal and health-promoting knee braces commonly include self-heating, electrically heated, and ordinary woolen knee braces. Sports knee braces commonly come in three types: patellar braces, wrap-around knee braces, and perforated knee braces. Regardless of the type, the wearing method is the same: the brace is wrapped tightly around the knee with straps. However, knee brace straps on the market vary in materials and structures, and some may break after a period of use or after impact, posing a safety hazard. Therefore, we have proposed a force testing device for knee brace straps to test their tensile strength, ensuring better tightening and improving safety.

[0003] To effectively test the fatigue resistance of knitted fabrics such as knee braces, abdominal binders, and socks, and improve the durability of knee braces, Chinese patent (authorization announcement number: CN218036112U) discloses a tensile fatigue testing device for fabrics. This utility model includes a base, a support rod on the base, and a cylinder on the support rod. The output end of the cylinder is connected to an upper tension rod. A lower tension rod is located below the upper tension rod and is fixedly connected to the cylinder body. This utility model can test the tensile fatigue of fabrics such as knitted fabrics, knee braces, abdominal binders, socks, and gloves. It can detect the tensile fatigue of tubular fabrics, helping to verify the durability of products. Furthermore, the testing device has a simple structure, low cost, and is easy to operate and use.

[0004] The solution still has some shortcomings in application. With the continuous improvement of product quality requirements, the force test data in many situations needs to be accurate and easy for consumers to view and use. Therefore, it is not enough to simply conduct tensile tests. The test data also needs to be displayed for easy understanding. Therefore, the structure of the testing device needs to be improved to achieve fast and accurate testing results, make the test data known, and improve the practicality of the knee brace. Utility Model Content

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

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

[0007] A force testing device for a knee brace includes a device body and a knee brace body. The device body has a base at its bottom, a fixed seat in the middle of the base, and a first circular cylinder detachably mounted on the top of the fixed seat. The knee brace body is movably fitted onto the first circular cylinder. Lifting frames are provided on both sides of the base. The lifting frames have built-in lead screws, and lifting rods are installed between the lead screws. A sensor is installed in the middle section of the lifting rod, and a second circular cylinder is installed at the bottom of the sensor.

[0008] Furthermore, the base has a built-in screw jack, which is connected to the screw drive, and the lifting rod can move up and down through the screw jack.

[0009] Furthermore, one side of the lifting frame is equipped with a balance bar, which is fitted with a sliding sleeve that is connected to the lifting bar.

[0010] Furthermore, a control panel is provided on one side of the device body. The control panel has a display screen and a control switch. The control switch is connected to the lead screw jack, and the display screen is connected to the sensor display.

[0011] Furthermore, the knee brace body includes a knee brace sleeve and a strap, the knee brace sleeve is fitted onto the first circular cylinder, and the strap extends upward through the second circular cylinder to form a fixation.

[0012] Furthermore, the second cylindrical tube stretches the strap upwards via the lifting rod, and the force value is displayed on the screen.

[0013] 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:

[0014] This invention firstly features a screw lifter mounted on a base and a fixed seat on top. The fixed seat has a detachable first cylindrical tube on which the knee brace is fitted for one-sided fixation. Next, screws connected to the screw lifter are located on both sides of the device body, with a lifting rod positioned between the screws. A sensor and a second cylindrical tube are located in the middle of the lifting rod. The strap is stretched upwards, passes through the second cylindrical tube, and is secured. A balance bar is located on one side of the screw to prevent the lifting rod from shifting. Finally, a control panel is located on one side of the device body, displaying the force values ​​obtained from the sensor. This structure also allows for strap fatigue testing. This invention features a novel structure, ingenious design, and strong practicality, enabling rapid and effective force testing of knee brace straps, making it suitable for widespread application. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of this utility model.

[0016] Figure 2 This is a front view structural diagram of the first cylindrical tube, the second cylindrical tube, and the knee pad body of this utility model.

[0017] Figure 3 This is a side view of the first cylindrical tube, the second cylindrical tube, and the knee brace body of this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 3 As shown, a force testing device for a knee brace includes a device body 1 and a knee brace body 2. The device body 1 has a base 3 at its bottom, and a fixed seat 4 in the middle of the base 3. A first circular cylinder 5 is detachably mounted on the fixed seat 4. The knee brace body 2 is movably fitted onto the first circular cylinder 5. Lifting frames 6 are provided on both sides of the base 3. The lifting frames 6 have lead screws inside (not shown in the schematic diagram due to viewing angle). A lifting rod 7 is installed between the lead screws. A sensor 8 is installed in the middle section of the lifting rod 7. A second circular cylinder 9 is installed at the bottom of the sensor 8.

[0020] Furthermore, the base 3 has a built-in screw jack (not shown in the schematic diagram due to viewing angle), which is connected to the screw drive, and the lifting rod 7 can move up and down through the screw jack.

[0021] Furthermore, one side of the lifting frame 6 is provided with a balance bar 10, and the balance bar 10 is fitted with a sliding sleeve 11, which is connected to the lifting rod 7.

[0022] Furthermore, a control panel is provided on one side of the device body 1. The control panel has a display screen 12 and a control switch 13. The control switch 13 is connected to the lead screw jack for control, and the display screen 12 is connected to the sensor 8 for display.

[0023] Furthermore, the knee brace body 2 includes a knee brace sleeve 21 and a strap 22. The knee brace sleeve 21 is fitted onto the first circular cylinder 5, and the strap 22 extends upward through the second circular cylinder 9 to form a fixation.

[0024] Furthermore, the second cylindrical tube 9 stretches the strap 22 upward through the lifting rod 7 and displays the force value on the display screen 13.

[0025] [Example]

[0026] First, fix the knee brace body 2 to the fixing base 4. The knee brace sleeve 21 of the knee brace body 2 is put on the first circular cylinder 5. The two straps 22 of the knee brace body 2 are wrapped around the second circular cylinder 9 and fixed. Next, start the screw lifter through the control switch 13 on the control panel. The screw lifter drives the lifting rod 7 to move upward. The lifting rod 7 drives the second circular cylinder 9 to move upward to stretch the straps 22. At the same time, the stretching force is displayed on the display screen 12 through the sensor 8 for the tester to view. Finally, fatigue tensile test of the straps 22 can also be performed in this way by repeatedly moving the lifting rod up and down through the screw lifter.

[0027] 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:

[0028] This invention firstly features a screw lifter mounted on a base and a fixed seat on top. The fixed seat has a detachable first cylindrical tube on which the knee brace is fitted for one-sided fixation. Next, screws connected to the screw lifter are located on both sides of the device body, with a lifting rod positioned between the screws. A sensor and a second cylindrical tube are located in the middle of the lifting rod. The strap is stretched upwards, passes through the second cylindrical tube, and is secured. A balance bar is located on one side of the screw to prevent the lifting rod from shifting. Finally, a control panel is located on one side of the device body, displaying the force values ​​obtained from the sensor. This structure also allows for strap fatigue testing. This invention features a novel structure, ingenious design, and strong practicality, enabling rapid and effective force testing of knee brace straps, making it suitable for widespread application.

[0029] 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 testing device for a knee brace strap, characterized in that: The device includes a main body and a knee brace. The main body has a base at its bottom, a fixed seat in the middle of the base, and a first circular cylinder detachably mounted on the top of the fixed seat. The knee brace is movably fitted onto the first circular cylinder. The base has lifting frames on both sides, each lifting frame has a lead screw inside, a lifting rod is installed between the lead screws, a sensor is installed in the middle of the lifting rod, and a second circular cylinder is installed at the bottom of the sensor.

2. The force testing device for a knee brace strap according to claim 1, characterized in that: The base has a built-in screw jack, which is connected to the screw drive, and the lifting rod can move up and down through the screw jack.

3. The force testing device for a knee brace strap according to claim 1, characterized in that: One side of the lifting frame is equipped with a balance bar, which is fitted with a sliding sleeve that is connected to the lifting bar.

4. The force testing device for a knee brace strap according to claim 2, characterized in that: The device body has a control panel on one side, which has a display screen and a control switch. The control switch is connected to the screw jack, and the display screen is connected to the sensor.

5. The force testing device for a knee brace strap according to claim 4, characterized in that: The knee brace body includes a knee brace sleeve and a strap. The knee brace sleeve is fitted onto the first cylindrical tube, and the strap extends upward through the second cylindrical tube to form a fixed structure.

6. The force testing device for a knee brace strap according to claim 5, characterized in that: The second cylindrical tube stretches the strap upwards via the lifting rod, and the force value is displayed on the screen.

Images