Bed board durability testing device
By designing a bed board durability testing device, the difficult problem of durability and safety assessment of baby crib bed boards has been solved, and fast and accurate testing has been achieved to ensure product safety and reduce market risks.
Patent Information
- Application Number
- CN202423017159.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing technology makes it difficult to effectively evaluate the durability and safety of crib bed boards, resulting in product safety hazards that may cause injury or death to infants and young children.
A bed board durability testing device is designed, which includes a support frame, an electric screw, a cantilever, a fixed seat, a vertical guide rail, a horizontal guide rail, a slider, a cylinder, a force sensor, a pressure block and a PLC control cabinet. The strength and durability of the bed board are tested through precision control and high-precision sensors.
It achieves rapid and accurate testing of crib bed boards, discovers potential defects, ensures product safety, reduces market risks and improves product quality.
Smart Images
Figure CN223426290U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of baby crib durability testing equipment. Background Art
[0002] As a major exporter of baby cribs, China's exports are growing. However, in recent years, there has been an increasing number of reported cases involving exported baby cribs, 86% of which are due to safety hazards stemming from component quality. These component quality issues primarily include: 1. Wooden rails and bed supports that are prone to breaking; 2. Plastic components that are prone to falling off, cracking, deforming, or malfunctioning; and 3. Tubular metal bed panels that are prone to deformation or breaking, which can lead to entrapment, scratches, falls, suffocation, and even death for infants and young children. These defects are a significant cause of death and injury for infants and young children.
[0003] Therefore, it is necessary to develop a professional safety testing equipment to test and evaluate the strength of baby cribs, such as product structure, load-bearing capacity, and quality and safety performance of key accessories, to minimize possible risks of the product and thus play a protective role before the product enters the market. Utility Model Content
[0004] The purpose of this utility model is to provide a reliable bed board durability testing device in response to current market demand, so as to effectively evaluate product quality and safety.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is as follows:
[0006] A bed board durability testing device comprises a support frame, an electric screw, a cantilever, a fixed seat, a vertical guide rail, a horizontal guide rail, a slider, a cylinder, a force sensor, a pressure block and a PLC control cabinet, wherein the electric screw is vertically fixed on the support frame, and the starting end of the cantilever is fixed on the fixed seat; the fixed seat is connected to the steering nut of the electric screw, and the left and right ends of the fixed seat are in contact with the vertical guide rail; the horizontal guide rail is arranged at the end of the cantilever, the slider is arranged on the horizontal guide rail, and the cylinder is fixed on the slider; one end of the force sensor is connected to the moving rod of the cylinder, and the other end is connected to the pressure block; the motor of the electric screw and the force sensor are signal or electrically connected to the PLC control cabinet.
[0007] Furthermore, the cylinder is a high-frequency cylinder with a stroke of 600 mm.
[0008] Furthermore, the force sensor adopts a tension and compression sensor with a measuring range of 500kg, a sensitivity of 0.002%, and an accuracy of more than 0.03%, which can very well ensure the stability of the test data.
[0009] Furthermore, the above-mentioned bed board durability testing device is also provided with a guide shaft, a linear bearing, a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are parallel and are laterally fixed on the cylinder and the force sensor respectively; the linear bearing is vertically fixed on the first connecting plate, and the guide shaft is arranged in the linear bearing, and the bottom of the guide shaft is connected to the second connecting plate.
[0010] Furthermore, the support frame is made of steel profile bracket.
[0011] Furthermore, the above-mentioned bed board durability testing device is also provided with a bottom plate and anti-skid feet, the support frame is fixed to the rear of the bottom plate, and the anti-skid feet are provided at the four corners of the bottom plate.
[0012] Beneficial effects of the utility model:
[0013] The bed board durability testing device provided by the utility model controls the stroke of the pressing block, the force value and the number of tests through the stroke of the cylinder, adopts a precision screw rod to adjust the up and down displacement of the cylinder, can adapt to beds of various shapes and sizes, is easy to operate, and can be tested quickly by a single person with high efficiency.
[0014] By testing the strength of the crib, we can see the defects of the product, and thus make a comprehensive assessment of the design, load-bearing capacity, and the use of accessories in key parts of the crib, minimize the possible risks of the product, and provide guarantees for product quality and market circulation.
[0015] The technical solution of the present utility model is illustrated below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a front side structural schematic diagram of a bed board durability testing device provided by an embodiment of the present utility model.
[0017] Description of reference numerals:
[0018] 1 support frame, 2 electric screw, 3 cantilever, 4 fixed seat, 5 vertical guide rail, 6 horizontal guide rail
[0019] 7 Slider, 8 Cylinder, 9 Force sensor, 10 Pressure block, 11 PLC control cabinet, 12 Guide shaft
[0020] 13 linear bearing, 14 first connecting plate, 15 second connecting plate, 16 bottom plate, 17 anti-slip foot DETAILED DESCRIPTION
[0021] The specific embodiments described herein are only used to explain the technical solutions of this patent, and are not intended to limit the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings only show parts related to the technical solutions of this application, rather than all structures.
[0022] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structures of the device components and / or modules themselves mentioned in the embodiments, if not described in detail, can be understood by those skilled in the art based on existing public technologies or commercially available products.
[0023] like Figure 1 As shown, the bed board durability testing device provided in this embodiment includes a support frame 1, an electric screw 2, a cantilever 3, a fixed seat 4, a vertical guide rail 5, a horizontal guide rail 6, a slider 7, a cylinder 8, a force sensor 9, a pressure block 10 and a PLC control cabinet 11. The electric screw 2 is vertically fixed on the support frame 1, and the starting end of the cantilever 3 is fixedly connected to the fixed seat 4; the fixed seat 4 is connected to the steering nut of the electric screw 2, and the left and right ends of the fixed seat 4 are in contact with the vertical guide rail 5; the horizontal guide rail 6 is provided at the end of the cantilever 3; the slider 7 is provided on the horizontal guide rail 6, and the cylinder 8 is fixed on the slider 7; one end of the force sensor 9 is connected to the moving rod of the cylinder 8, and the other end is connected to the pressure block 10; the motor of the electric screw 2 and the force sensor 9 are signal or electrically connected to the PLC control cabinet 11.
[0024] In order to further improve the load-bearing capacity and stability of the entire device, steel profiles are preferably used as the support frame 1.
[0025] To meet the standards of different regions, the cylinder 8 is a high-frequency type with a stroke of 600mm. The force sensor 9 is preferably a force-transmitting tension and compression sensor, most preferably a high-precision tension and compression sensor with a range of 500kg, a sensitivity of 0.002%, and an accuracy of 0.03% or more. This allows for better control of tension and compression forces, with near-zero repeatability error, ensuring accurate and stable test data.
[0026] In order to further prevent the pressure block from being displaced during continuous impact, a guide shaft 12, a linear bearing 13, a first connecting plate 14 and a second connecting plate 15 are further provided. The first connecting plate 14 and the second connecting plate 15 are parallel and are laterally fixed on the cylinder 8 and the force sensor 9 respectively; the linear bearing 13 is vertically fixed on the first connecting plate 14, and the guide shaft 12 is arranged in the linear bearing 13. The bottom of the guide shaft 12 is connected to the second connecting plate 15 to ensure that the cylinder moving rod does not deflect.
[0027] The device may be further provided with a bottom plate 16 and anti-skid feet 17 , wherein the support frame 1 is fixed to the rear of the bottom plate 16 , and the anti-skid feet 17 are provided at the four corners of the bottom plate 16 .
[0028] When testing with the bed board durability tester described above, adjust the pressure block to the desired bed board position, then activate the lead screw motor to adjust the pressure block's height. Set the desired force and number of repetitions, start the device, and begin a repetitive test. The device stops when the desired number of repetitions is reached.
[0029] Different test times and downward pressure values can be set according to the different quality grade requirements and different specifications of the baby crib.
Claims
1. A bed board durability testing device, characterized by: The invention comprises a support frame (1), an electric screw (2), a cantilever (3), a fixed seat (4), a vertical guide rail (5), a horizontal guide rail (6), a slider (7), a cylinder (8), a force sensor (9), a pressure block (10) and a PLC control cabinet (11), wherein the electric screw (2) is vertically fixed on the support frame (1), the starting end of the cantilever (3) is fixedly connected to the fixed seat (4); the fixed seat (4) is connected to the steering nut of the electric screw (2), and the fixed seat The left and right ends of (4) are in contact with the vertical guide rail (5); the horizontal guide rail (6) is provided at the end of the cantilever (3), the slider (7) is provided on the horizontal guide rail (6), and the cylinder (8) is fixed on the slider (7); one end of the force sensor (9) is connected to the moving rod of the cylinder (8), and the other end is connected to the pressure block (10); the motor of the electric screw (2) and the force sensor (9) are connected to the PLC control cabinet (11) by signal or electricity.
2. The bed board durability testing device according to claim 1, characterized in that: The cylinder (8) is a high-frequency cylinder with a stroke of 600 mm.
3. The bed board durability testing device according to claim 1, characterized in that: The force sensor (9) is a tension and compression sensor with a measuring range of 500 kg, a sensitivity of 0.002%, and an accuracy of more than 0.03%.
4. The bed board durability testing device according to claim 1, wherein: The support frame (1) is a steel profile bracket.
5. The bed board durability testing device according to any one of claims 1 to 4, characterized in that: A guide shaft (12), a linear bearing (13), a first connecting plate (14) and a second connecting plate (15) are also provided. The first connecting plate (14) and the second connecting plate (15) are parallel and are laterally fixed to the cylinder (8) and the force sensor (9) respectively; the linear bearing (13) is vertically fixed to the first connecting plate (14), the guide shaft (12) is arranged in the linear bearing (13), and the bottom of the guide shaft (12) is connected to the second connecting plate (15).
6. The bed board durability testing device according to any one of claims 1 to 4, characterized in that: A bottom plate (16) and anti-skid feet (17) are also provided. The support frame (1) is fixed to the rear of the bottom plate (16), and the anti-skid feet (17) are provided at the four corners of the bottom plate (16).
7. The bed board durability testing device according to claim 5, characterized in that: A bottom plate (16) and anti-skid feet (17) are also provided. The support frame (1) is fixed to the rear of the bottom plate (16), and the anti-skid feet (17) are provided at the four corners of the bottom plate (16).