Adjustable spring cushion strong pressure testing device
By introducing buffer and protection components into the spring pad pressure testing device, the problem of local stress concentration caused by the downward pressure of the loading plate is solved, thus achieving protection and safe testing of the spring pad.
Patent Information
- Application Number
- CN202423229145.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing spring pad pressure testing devices are prone to localized stress concentration when the loading plate is pressed down, which can lead to damage to the spring pads.
It employs a buffer assembly and a protective assembly, including a buffer frame, a rubber pad, and a telescopic spring. The buffer frame applies downward pressure to the spring pad, while the protective assembly limits the spring pad to prevent damage.
This effectively avoids unnecessary damage to the spring pads and prevents them from splashing by limiting their movement, thus improving the safety and accuracy of the test.
Smart Images
Figure CN223664218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spring pad pressure testing technology, and in particular to an adjustable spring pad pressure testing device. Background Technology
[0002] Static compression testing of spring pads is an important method for evaluating their mechanical properties under constant load. This test can provide key information about the spring pad's maximum load-bearing capacity, elastic modulus (stiffness), permanent deformation, and recovery capacity.
[0003] Existing spring pad pressure testing devices typically use a hydraulic cylinder to move a loading plate to apply a set pressure to the spring pad for testing. However, when the loading plate presses down on the spring pad, local stress concentration can easily occur, causing unnecessary damage to the spring pad.
[0004] Therefore, an adjustable spring pad pressure testing device has now been developed that can cushion and protect the spring pad, preventing unnecessary damage to the spring pad. Utility Model Content
[0005] To overcome the shortcomings of existing spring pad pressure testing devices, where localized stress concentration easily occurs when the loading plate presses down on the spring pad, leading to unnecessary damage to the spring pad, this utility model provides an adjustable spring pad pressure testing device that can buffer and protect the spring pad, avoiding unnecessary damage to the spring pad.
[0006] The technical solution is as follows: An adjustable spring pad pressure testing device includes a base, a protective frame, a placement platform, a hydraulic rod, guide rods, a mounting plate, a displacement sensor, a pressure sensor, a pressure block, a buffer assembly, and a protective assembly. The protective frame is connected to the upper side of the base, the placement platform is connected to the upper middle part of the base, the hydraulic rod is connected to the upper part of the protective frame, multiple guide rods are connected between the base and the protective frame, the mounting plate is connected to the telescopic end of the hydraulic rod, the displacement sensor is connected to the lower side of the mounting plate, the guide rods are all slidably connected to the mounting plate, the pressure sensor is connected to the lower middle part of the mounting plate, the pressure block is connected to the lower side of the pressure sensor, the pressure block is provided with a buffer assembly that can protect the spring pad, and a protective assembly that can limit the spring pad is provided between the guide rods.
[0007] Optionally, a base plate is provided on the underside of the base.
[0008] Optionally, the buffer assembly includes a first buffer frame, a rubber pad, and a first telescopic spring. The first buffer frame is slidably connected to the pressure block, and the rubber pad is threadedly connected to the lower side of the first buffer frame. Multiple first telescopic springs are connected between the first buffer frame and the pressure block.
[0009] Optionally, the protective assembly includes a protective cover, a second buffer frame, a protective pad, and a second telescopic spring. The protective cover is slidably connected between the lower parts of the guide rods. Multiple second buffer frames are slidably connected to the protective cover. The inner side of each second buffer frame is connected to a protective pad. Each second buffer frame is connected to the protective cover by a second telescopic spring.
[0010] Optionally, the second buffer frame is always curved.
[0011] Optionally, the protective pads are all made of sponge material.
[0012] The beneficial effects of this utility model are: 1. By activating the hydraulic rod, the mounting plate is pushed downward, causing the pressure sensor and the pressure block to move downward. Subsequently, the rubber pad contacts the upper side of the spring pad, the first buffer frame slides on the pressure block, and the first telescopic spring is stretched, applying a downward pressure force to the spring pad, thus achieving the effect of buffering and protecting the spring pad and avoiding unnecessary damage to the spring pad.
[0013] 2. This utility model loosens the protective cover, allowing it to move downwards under gravity and cover the outside of the placement platform. The force of the second telescopic spring keeps the protective pad on the second buffer frame in constant contact with the spring pad, thus limiting the spring pad and preventing it from splashing. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the testing mechanism of this utility model.
[0016] Figure 3 This is a schematic diagram of the first cross-sectional three-dimensional structure of the buffer mechanism of this utility model.
[0017] Figure 4 This is a schematic diagram of the second three-dimensional structure of the buffer mechanism of this utility model.
[0018] Figure 5 This is a cross-sectional three-dimensional structural diagram of the protective mechanism of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1: base, 2: protective frame, 3: placement platform, 4: hydraulic rod, 5: guide rod, 6: mounting plate, 61: displacement sensor, 7: pressure sensor, 8: pressure block, 9: first buffer frame, 10: rubber pad, 11: first telescopic spring, 12: protective cover, 13: second buffer frame, 14: protective pad, 15: second telescopic spring. Detailed Implementation
[0020] The embodiments of this utility model will be described below with reference to the accompanying drawings.
[0021] An adjustable spring pad pressure testing device, such as Figures 1-5 As shown, the system includes a base 1, a protective frame 2, a placement platform 3, a hydraulic rod 4, guide rods 5, a mounting plate 6, a displacement sensor 61, a pressure sensor 7, a pressure block 8, a buffer assembly, and a protective assembly. The protective frame 2 is connected to the upper side of the base 1, and a base plate is provided on the lower side of the base 1 for easy placement on the ground. The placement platform 3 is connected to the upper middle part of the base 1. The hydraulic rod 4 is connected to the upper part of the protective frame 2. Four guide rods 5 are connected between the base 1 and the protective frame 2. The mounting plate 6 is connected to the telescopic end of the hydraulic rod 4. The displacement sensor 61 is connected to the lower side of the mounting plate 6. The guide rods 5 are all slidably connected to the mounting plate 6. The pressure sensor 7 is connected to the lower middle part of the mounting plate 6. The pressure block 8 is connected to the lower side of the pressure sensor 7. A buffer assembly is provided on the pressure block 8. A protective assembly is provided between the guide rods 5.
[0022] like Figure 3 and Figure 4 As shown, the buffer assembly includes a first buffer frame 9, a rubber pad 10, and a first telescopic spring 11. The first buffer frame 9 is slidably connected to the pressure block 8, and the rubber pad 10 is threadedly connected to the lower side of the first buffer frame 9. Four first telescopic springs 11 are connected between the first buffer frame 9 and the pressure block 8.
[0023] like Figure 1 and Figure 5 As shown, the protective assembly includes a protective cover 12, a second buffer frame 13, a protective pad 14, and a second telescopic spring 15. The protective cover 12 is slidably connected to the lower part of the guide rod 5. Three second buffer frames 13 are slidably connected to the protective cover 12. The second buffer frames 13 are all arc-shaped to fit the shape of the spring pad. The inner side of each second buffer frame 13 is connected to a protective pad 14. The protective pads 14 are all made of sponge material for protection. The second buffer frame 13 is connected to the protective cover 12 by a second telescopic spring 15.
[0024] When using this invention, first place the base 1 in the spring pad pressure test area, then place the spring pad to be tested on the placement platform 3. Next, activate the hydraulic rod 4 to push the mounting plate 6 downwards, causing the pressure sensor 7 and the pressure block 8 to move downwards. Then, the rubber pad 10 contacts the upper side of the spring pad, the first buffer frame 9 slides on the pressure block 8, and the first telescopic spring 11 stretches, applying a downward pressure force to the spring pad. This provides cushioning and protection for the spring pad, preventing unnecessary damage. The pressure sensor 7 detects the force applied to the spring pad, and the displacement sensor 61 records the deformation of the spring pad. Then, the pressure is gradually released, and the results are observed. The recovery status of the spring pad is used to determine its resistance to strong pressure. The rubber pad 10 can be removed and replaced as needed. When the spring pad to be tested is placed on the placement platform 3, the protective cover 12 can be pushed to move upward along the guide rod 5, and then the spring pad is placed on the placement platform 3. After placement, the protective cover 12 is released, and the protective cover 12 moves downward under the action of gravity to cover the outside of the placement platform 3. The protective pad 14 on the second buffer frame 13 is kept in contact with the spring pad by the force of the second telescopic spring 15, which can limit the spring pad and prevent the spring pad from splashing. After the pressure block 8 is reset, the first telescopic spring 11 rebounds, driving the first buffer frame 9 to reset.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable spring pad pressure testing device, characterized in that, It includes a base (1), a protective frame (2), a placement platform (3), a hydraulic rod (4), a guide rod (5), a mounting plate (6), a displacement sensor (61), a pressure sensor (7), a pressure block (8), a buffer assembly, and a protective assembly. The upper side of the base (1) is connected to the protective frame (2), the upper middle part of the base (1) is connected to the placement platform (3), the upper part of the protective frame (2) is connected to the hydraulic rod (4), multiple guide rods (5) are connected between the base (1) and the protective frame (2), the extension end of the hydraulic rod (4) is connected to the mounting plate (6), the lower side of the mounting plate (6) is connected to the displacement sensor (61), the guide rods (5) are all slidably connected to the mounting plate (6), the lower middle part of the mounting plate (6) is connected to the pressure sensor (7), the lower side of the pressure sensor (7) is connected to the pressure block (8), the pressure block (8) is provided with a buffer assembly that can protect the spring pad, and the guide rods (5) are provided with a protective assembly that can limit the spring pad.
2. The adjustable spring pad pressure testing device according to claim 1, characterized in that, The base (1) has a bottom plate on its underside.
3. The adjustable spring pad pressure testing device according to claim 1, characterized in that, The buffer assembly includes a first buffer frame (9), a rubber pad (10) and a first telescopic spring (11). The first buffer frame (9) is slidably connected to the pressure block (8), and the rubber pad (10) is threadedly connected to the lower side of the first buffer frame (9). Multiple first telescopic springs (11) are connected between the first buffer frame (9) and the pressure block (8).
4. The adjustable spring pad pressure testing device according to claim 3, characterized in that, The protective assembly includes a protective cover (12), a second buffer frame (13), a protective pad (14), and a second telescopic spring (15). The lower part of the guide rod (5) is slidably connected to the protective cover (12). Multiple second buffer frames (13) are slidably connected to the protective cover (12). The inner side of each second buffer frame (13) is connected to a protective pad (14). Each second buffer frame (13) is connected to the protective cover (12) by a second telescopic spring (15).
5. The adjustable spring pad pressure testing device according to claim 4, characterized in that, The second buffer frame (13) is curved.
6. The adjustable spring pad pressure testing device according to claim 4, characterized in that, The protective pads (14) are all made of sponge.