Pedal aging test device
By designing a foot pedal aging test device, a motor reduction mechanism and a lead screw are used to adjust the height of the test head. Combined with a pressure sensor and an electromagnet, multi-angle and multi-position testing of the foot pedal is achieved, solving the problem of inaccurate test data in existing technologies and improving the accuracy and efficiency of testing.
Patent Information
- Application Number
- CN202520415313.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing foot pedal performance testing devices cannot perform tests under real-world usage conditions, resulting in inaccurate test data and an inability to guarantee product quality.
A foot pedal aging test device was designed, including a touch control display screen, a housing, wheels, a motor reduction mechanism, a lead screw, a linear slide rail, a fixed base, and a test head mechanism. The height of the test head is adjusted by the motor reduction mechanism and the lead screw to achieve multi-angle and multi-position testing of the foot pedal. Combined with a pressure sensor and an electromagnet, the device achieves repeated impact testing of the foot pedal.
It improves the accuracy and efficiency of foot pedal performance testing, enabling testing under actual equipment operating conditions and ensuring the authenticity and reliability of test data.
Smart Images
Figure CN223769740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to a foot pedal aging testing device. Background Technology
[0002] In the medical field, to facilitate manual operation and simultaneous adjustment of equipment functions, foot pedal switches are typically installed at the bottom of the equipment. When in operation, the operator presses or releases the pedal, triggering a power switch or control mechanism to perform the required task. For example, during delicate surgical procedures, the surgeon's hands must focus on manipulating instruments; the foot pedal allows for easy adjustment of the microscope's focus, magnification, and switching between different observation modes, enabling better observation of surgical details. In dental treatment equipment, when the dentist's hands are busy holding dental tools such as drills and tweezers, the foot pedal can control functions like water and air jets on the treatment table to rinse and dry the treated area, maintaining a clear field of view and facilitating successful treatment. Similarly, in medical ultrasound diagnostic equipment, when the dentist holds the ultrasound probe to examine and probe specific areas of the patient's body, the foot pedal can control image freezing, storage, and switching between different measurement modes, facilitating the timely capture of desired ultrasound images and subsequent data recording.
[0003] In actual production, to improve the lifespan of foot pedals in related equipment and the comfort of operators' feet, rubber pads or other cushioning materials are often glued and installed on the upper part of the foot pedals. To ensure product quality and stable and reliable operation, manufacturers conduct performance tests on the foot pedals after the installation of rubber pads. Specifically, the foot pedal is placed flat on the test station in the testing chamber, and the power switch of the testing mechanism is turned on. The electrically driven test head mechanism of the testing mechanism reciprocates up and down, impacting the foot pedal surface to obtain specific performance data (for example, determining whether the foot pedal's quality is acceptable based on the number of impacts from the test head within a certain time and the damage to the rubber pads on the upper part of the foot pedal). Although existing foot pedal surface performance testing mechanisms meet the testing needs to some extent, they still have some technical problems due to structural limitations. Specifically, during laboratory testing, the foot pedal is separated from the equipment and horizontally fixed on the testing station (test bench). This ensures the impact points of the test head and the upper part of the foot pedal are vertically fixed. However, when the foot pedal is actually installed on the equipment, it is not always horizontal (or the equipment itself may vibrate). Because the testing scenario differs from the actual usage scenario, the test data is not suitable for end-use applications. In other words, manufacturers cannot guarantee the quality of the foot pedal based on data obtained from the laboratory testing, which may have some adverse effects on the end-use application of their products (e.g., the foot pedal is tilted when installed on the production equipment, the equipment vibrates during operation, and the pressure surface of the footpad and other pressure points is unbalanced when personnel step on it, leading to faster wear). Therefore, it is particularly necessary to provide a device that can be easily moved to a suitable location for on-site testing of foot pedals installed on relevant equipment. Utility Model Content
[0004] In order to overcome the shortcomings of existing foot pedal surface performance testing mechanisms, which are limited by technology and have the drawbacks described in the background art, this utility model provides a foot pedal aging testing device that allows testers to easily push the entire mechanism to the location of the relevant equipment where the foot pedals are installed, under the combined action of related mechanisms, and simultaneously measure the performance of multiple foot pedals of the relevant equipment under the most realistic working conditions of the relevant equipment, thereby making the foot pedal performance test data more accurate.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A foot pedal aging test device includes a touch control display screen, a housing, wheels, a motor reduction mechanism, a lead screw, a linear slide rail, a fixed base, and a lead screw seat, and also has a test head mechanism. Multiple sets of wheels are fixedly installed around the lower perimeter of the housing. Multiple sets of fixed bases are also included, with the rear sides of two sets fixedly installed on the upper and lower front parts of the housing, respectively. The rear ends of the linear slide rail are fixedly installed on the front sides of the upper and lower fixed bases, respectively. The rear end of the motor reduction mechanism is fixedly installed in the middle of one of the upper fixed bases. The upper end of the lead screw and the lower end of the motor reduction mechanism's shaft are mounted together. The lead screw seat's screw hole and the lower end of the lead screw are threaded together. The front end of the lead screw seat is fixedly installed... The housing is equipped with a connecting plate, and the side end of the connecting plate and the sliding block of the linear slide rail are fixedly installed together. A support frame is fixedly installed at the lower front end of the housing, and the upper end of the third set of fixed seats is fixedly installed together with the front end of the connecting plate. There are multiple sets of test head mechanisms, each set of test head mechanisms including an electromagnet, a pressure sensor, a contact wheel, and a fixed plate. The rear end of the electromagnet is fixedly installed at the front end of the fixed plate, the lower end of the armature of the electromagnet is fixedly installed together with the upper end of the pressure sensor, the lower end of the pressure sensor is fixedly installed with a fixed frame, the contact wheel is rotatably installed at the lower end of the fixed frame, and the upper ends of the fixed plates of the multiple sets of test head mechanisms are respectively fixedly installed on the third set of fixed seats. The touch control display screen is installed inside the housing.
[0007] Furthermore, the front part of the fixing seat has a fixing groove in the lateral direction, and multiple bolts are movably fitted at the rear end of the fixing groove, with the outer diameter of the bolt head being larger than the distance between the upper and lower ends of the fixing groove.
[0008] Furthermore, when the wire seat is in the lower dead center state, the lower end of the front fixed seat and the upper end of the support frame are spaced apart, and the lower end of the contact wheel of the multiple test head mechanism is higher than the lower end of the wheel.
[0009] Furthermore, the lower ends of the contact wheels of the multiple test head mechanisms are at the same height.
[0010] Furthermore, the motor reduction mechanism is a coaxial motor gear reducer.
[0011] Compared with existing technologies, the advantages of this invention are as follows: This invention allows workers to easily push it to the relevant equipment for testing. Through the motor reduction mechanism and the action of lead screws and lead seats, the height of the lower end of the contact wheels of multiple test head mechanisms can be adjusted, thereby achieving the purpose of adjusting the testing force exerted by the contact wheels on the upper end of the foot pedal. During testing, the touch control display screen can control the electromagnets of one or more test head mechanisms to be energized cyclically. The lower end of the contact wheel can contact or separate from the upper end of the foot pedal, achieving the purpose of repeated impact testing on the upper end of the foot pedal. Because this invention can simultaneously measure the performance of one or more foot pedals of the relevant equipment under the most realistic working conditions, it improves work efficiency and the accuracy of foot pedal performance test data. In summary, this invention has good application prospects. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is the circuit diagram of this utility model. Detailed Implementation
[0015] Figure 1 , 2 As shown, a foot pedal aging test device includes a touch control display screen A, a housing 1, omnidirectional wheels 2 with brake function, a power switch S1, a motor reduction mechanism M, a lead screw 3, a linear slide rail 4, a fixed base 5, a lead seat 6, a power module A1, and a test head mechanism 7. There are four sets of omnidirectional wheels 2, with their support seats fixedly installed around the lower outer perimeter of the housing 1. There are three sets of fixed bases 5, with two sets fixedly installed on the upper and lower front ends of the housing 1 respectively. The rear ends of the housing of the linear slide rail 4 are vertically distributed and fixedly installed on the front left ends of the upper and lower sets of fixed bases 5 respectively. The rear end of the housing of the motor reduction mechanism M is vertically distributed and fixedly installed on the front middle of one of the upper fixed bases 5. The upper end of the lead screw 3 is welded to the lower end of the shaft of the motor reduction mechanism M. The screw hole in the middle of the lead seat 6 is threadedly connected to the lower end of the lead screw 3. A connecting plate 61 is fixedly installed at the front end of the lead seat 6, and the left side of the connecting plate 61 is connected to the linear slide rail. The front end of the sliding block of 4 is fixedly installed together; the lower front end of the housing 1 is fixedly installed with a support frame 101, and the upper middle part of the third set of fixed seats 5 and the lower front end of the connecting plate 61 are fixedly installed together; there are three sets of test head mechanisms 7, each set of test head mechanisms includes an electromagnet DC, a pressure sensor A2, a contact wheel 71, and a "┌" shaped fixed plate 72. The rear end of the electromagnet DC is fixedly installed on the front end of the fixed plate 72, the lower end of the armature of the electromagnet DC is fixedly connected to the upper end of the mounting surface of the pressure sensor A2, a "Π" shaped fixed frame 73 is installed on the lower end of the force-bearing surface of the pressure sensor A2, and the contact wheel 71 is rotatably installed in the lower end of the fixed frame 73. The upper ends of the fixed plates 72 of the three sets of test head mechanisms are respectively fixedly installed on the third set of fixed seats 5 on the left and right sides; the touch control display screen A, the power switch S1, and the power module A1 are installed inside the housing 1, and the display surface of the touch control display screen A and the button of the power switch S1 are respectively located outside the opening and the hole at the upper end of the housing.
[0016] Figure 1 , 2As shown, there is a fixing groove 51 in the middle front of the fixed seat 5. Multiple bolts 52 are movably fitted inside the rear end of the fixing groove 51 (the bolts can move left and right along the fixing groove). The outer diameter of the bolt heads is larger than the distance between the upper and lower ends of the fixing groove. The linear slide rail 4, the housing of the motor reduction mechanism M, the fixing plate 72, and the multiple sets of fixed seats 5 are fixedly connected by bolts, nuts, and the fixing groove 51. When the lead screw 6 is in the lower dead center position, the lower end of the front fixed seat 5 is spaced from the upper end of the support frame 101, and the lower end of the contact wheel 71 of the three sets of test head mechanisms is higher than the lower end of the wheel 2.
[0017] The lower ends of the contact wheels 71 of the three test head mechanisms are at the same height. The motor reduction mechanism M is a coaxial motor gear reducer. The power input terminals 1 and 2 of the power module A1 are connected to the two poles of the AC 220V power supply via wires. The power output terminals 3 and 4 of the power module A1 are connected to the power input terminals 1 and 2 of the touch control display screen A and the power input terminals 1 and 2 of the three pressure sensors A2 via wires. The signal output terminals of the pressure sensors A2 are connected to the signal input terminals 3, 4, and 5 of the touch control display screen A via wires. The DC power input terminals of the three electromagnets are connected to the power input terminals 6, 7, 8, 9, 10, and 11 of the touch control display screen A via wires. The power input terminal of the motor reduction mechanism M is connected in series with the power switch S1 and to the two poles of the AC 220V power supply via wires. (The two ends of the motor running capacitor of the motor reduction mechanism M are connected to the power output terminals 2 and 3 of the power switch S1 via wires. The power input terminal of the power switch S1, the main power input terminal of the motor, and the two poles of the AC 220V power supply are connected via wires.)
[0018] Figure 1 , 2As shown, this new type of device has universal wheels 2 at the lower end of the housing 1, making it easy to push to the relevant equipment for testing. After the AC 220V power supply enters the power input terminal of the power module A1, the power module A1 outputs a stable DC 12V power supply from pins 3 and 4, which enters the power input terminals of the touch control display screen A and the three pressure sensors A2. After the equipment arrives on site, the staff adjusts the spacing of the contact wheels 71 of one, two, or three sets of test head mechanisms to the left or right, according to the number of foot pedals 8 to be tested and the spacing between each pair of foot pedals 8, so that the lower end of the contact wheel 71 is located at the upper test point position of the foot pedal 8. When the operator moves the handle of power switch S1 to the left or right, pins 1 and 2, and pins 1 and 3 of power switch S1 are connected respectively. This causes the motor M shaft of the motor reduction mechanism to drive the lead screw 3 to rotate clockwise or counterclockwise. The external thread of the lead screw 3 then acts on the internal thread of the lead seat 6. This causes the lead seat to move one or more sets of testing mechanisms up or down. The power switch is turned off when the lower end of the contact wheel 71 of the testing mechanism contacts the upper end of the foot pedal and the armature of the electromagnet rises to a certain height (the higher the armature, the greater the subsequent impact force on the foot pedal, and vice versa). In practice, after the upper end of the foot pedal contacts the lower end of the contact wheel, the pressure sensor outputs a pressure signal, which is then displayed on the touch control screen A. The display shows the number (the greater the contact force, the larger the number displayed, and vice versa; the operator can adjust the pressure of the lower end of the contact wheel against the upper end of the foot pedal according to the displayed number). After the power of the touch control display screen A is turned on, pins 6, 7, 8, 9, 10, and 11 of the control display screen A will output power to the power input terminal of the electromagnet DC of the first, second, or third set of test head mechanisms at intervals (for example, outputting power for 1 second every 1 second). During the period when the electromagnet DC is energized, its armature will drive the contact wheel upward. After the electromagnet DC is de-energized, its spring will push the contact wheel downward to contact the upper end of the foot pedal; the above process is continuously cycled, and the lower end of the contact wheel will conduct an impact test on the upper end of the foot pedal at intervals. Specifically, each time the touch control display screen A outputs power to the electromagnet DC, and the lower end of the contact wheel of the electromagnet DC contacts the foot pedal, the touch control display screen A will count the number of times the electromagnet pushes the contact wheel to impact the test foot pedal. Subsequently, the staff can intuitively understand the specific data of the number of times the impact wheel of the testing mechanism impacts the foot pedal within the corresponding time by watching the cumulative count on the touch control display screen A. (And understand the impact force data acting on the foot pedal by combining the data displayed by the pressure sensor.)
[0019] Figure 2 As shown, through the above technical solution, this new invention can simultaneously measure the performance of one or more foot pedals of the relevant equipment under the most realistic working conditions, thereby improving work efficiency and the accuracy of foot pedal performance test data. Figure 2In this application, power module A is a finished AC 220V to DC 12V switching power supply module; the electromagnet DC power is 20W; the motor reduction mechanism M has a power of 200W; and the touch control display screen A is a Mitsubishi FX1S / 3U programmable logic controller (PLC). It should be noted that the PLC's multiple power output terminals output power to the electrical equipment, and the accumulation or display of analog data is a mature existing technology. This application does not elaborate on its technical solution and does not provide any protection for the above technical solution.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0021] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A pedal aging test device, comprising a touch control display screen, a box, a wheel, a motor reduction mechanism, a lead screw, a linear slide rail, a fixed seat, a silk seat, characterized in that, The test head mechanism is provided with multiple sets, each set of the test head mechanism comprising an electromagnet, a pressure sensor, a contact wheel and a fixed plate, the rear end of the electromagnet being fixedly installed on the front side of the fixed plate, the lower end of the armature of the electromagnet being fixedly installed on the upper end of the pressure sensor, the lower end of the pressure sensor being provided with a fixed frame, the contact wheel being rotatably installed on the lower end of the fixed frame, and the upper end of the fixed plate of each set of the test head mechanism being fixedly installed on the upper end of the third set of fixed seats.
2. A pedal aging test apparatus according to claim 1, wherein The front part of the fixed seat is provided with a fixed groove in the transverse direction, the rear end of the fixed groove being movably sleeved with multiple bolts, and the outer diameter of the head of the bolt being greater than the distance between the upper and lower ends of the fixed groove.
3. A pedal aging test apparatus according to claim 1, wherein When the fixed seat is in the lower dead center state, the lower end of the front fixed seat is spaced apart from the upper end of the support frame, and the lower end of the contact wheel of each set of the test head mechanism is higher than the lower end of the wheel.
4. The pedal aging test apparatus of claim 1, wherein The lower end of the contact wheel of each set of the test head mechanism is consistent in height.
5. The pedal aging test apparatus of claim 1, wherein, The motor speed reduction mechanism is a coaxial motor gear reducer.