A jack testing reaction frame device
By using multiple sets of pressure springs and adjustment mechanisms in the jack testing reaction frame device, the problem of pressure plate damage caused by rigid impact was solved, and flexible adaptation and accurate testing of different jack models were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGGUO TIANTIAN WEAR-RESISTANT MATERIAL CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing jack testing reaction frame devices are prone to damage to the pressure plate due to rigid impact during testing, and it is difficult to simulate the diverse working conditions of different jack models.
Multiple sets of pressure springs are used for buffering, combined with adjusting screws and lifting cylinders to adjust the compression of the pressure springs and the height of the device, adapting to the testing requirements of different jack models. The adjustment accuracy is ensured by indicator plates and scale lines.
It effectively avoids damage to the pressure plate from rigid impacts, and can flexibly simulate the actual working scenarios of different types of jacks, improving test accuracy and stability.
Smart Images
Figure CN224518127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of jack testing devices, and in particular to a jack testing reaction frame device. Background Technology
[0002] In the current field of jack testing, the jack testing reaction frame device plays a key role in ensuring the reliability of jack performance and can simulate the actual working scenario of the jack. However, the existing jack testing reaction frame device has many shortcomings.
[0003] Existing methods for pressure testing of jacks require applying pressure to a pressure plate via a push rod. However, the pressure plate is often rigidly transmitted to related components. Direct impact on the pressure plate, lacking an effective buffering mechanism, can easily cause excessive load on the pressure plate during testing. Over time, this can severely damage the beam and pressure plate, affecting the accuracy and lifespan of the entire testing device. Furthermore, existing devices are often difficult to adjust flexibly according to the actual working conditions of different jacks. Different jack models experience varying forces and force ranges during actual operation, and existing reaction frame devices cannot easily simulate these diverse working conditions. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a jack testing reaction frame device. This solves the technical problems of existing technologies where rigid impacts during testing easily cause excessive loads on the pressure plate, and where existing reaction frame devices cannot conveniently simulate the diverse working conditions of different jack models. The new device achieves the goal of buffering the generated force through multiple sets of pressure springs, preventing rigid impacts from causing loads and damage to the crossbeam pressure plate. Furthermore, it adapts to different testing needs, simulates the actual working scenarios of different jack models, and tests their performance stability under actual working conditions.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a jack test reaction frame device, including a support base for supporting the jack, a pressure test assembly on the top of the support base, the pressure test assembly including guide pillars on the top of the four corners of the support base, and a fixed top plate fixedly installed on the top of the four guide pillars, the outer peripheral walls of the four guide pillars are slidably connected to a crossbeam pressure plate that contacts the jack rod for pressure testing, and the bottom end of the fixed top plate is provided with a limiting plate fixedly installed on the top of multiple pressure springs; The top of the fixed top plate is threaded with an adjusting screw that adjusts the compression of multiple pressure springs to adapt to different ranges of jack testing. The adjusting screw drives the limit plate to slide, adjusting the distance between the limit plate and the crossbeam pressure plate.
[0006] Preferably, multiple sets of pressure springs are respectively sleeved on the outer peripheral wall of the guide support, and a pressure gauge for detecting the pressure of the jack is fixedly installed on the top of the crossbeam pressure plate.
[0007] Preferably, the limiting plate is sleeved on the outer peripheral wall of multiple sets of guide pillars, the bottom end of the adjusting screw is rotatably connected to the top of the limiting plate, and an adjusting knob is fixedly installed on the top of the adjusting screw.
[0008] Preferably, the top of the support base is fixedly equipped with multiple sets of lifting cylinders that drive the pressure testing components upward. The lifting cylinders adjust the distance between the crossbeam pressure plate and the support base to accommodate jacks of different heights.
[0009] Preferably, fixed side plates are fixedly installed on both sides of the top of the fixed top plate, and an indicator plate is slidably connected to the outer wall of the fixed side plate, and scale lines are provided on the outer wall of the fixed side plate.
[0010] Preferably, the ends of the indicator plates on both sides pass through the outer wall of the fixed side plate and are fixedly installed with drive plates, and the ends of the two sets of drive plates that are close to each other are fixedly connected to a set of connecting rings.
[0011] Preferably, a drive block that is rotatably connected inside the connecting ring is fixedly sleeved on the top of the outer peripheral wall of the adjusting screw.
[0012] By employing the above technical solution, this utility model provides a jack testing reaction frame device, which has at least the following beneficial effects: 1. This utility model, through the coordinated use of a crossbeam pressure plate, multiple sets of pressure springs, and a pressure gauge, allows for the buffering of force generated during jack testing. This prevents rigid impacts from causing load and damage to the crossbeam pressure plate. Furthermore, by adjusting the screw, the compression of the multiple pressure springs can be adjusted, changing the initial force state and deformation range of the springs. This makes the entire jack pressure testing device more flexible, precise, and adaptable to different testing needs, simulating the actual working scenarios of different jack models and testing their performance stability under real-world working conditions.
[0013] 2. This utility model, through the use of fixed side plate scale lines and indicator plates on both sides of the fixed top plate, allows the indicator plates on both sides to slide simultaneously when adjusting the compression of multiple pressure springs by moving the limiting plate with the adjusting screw. This makes it easy to clearly see the specific values of the compression of multiple pressure springs during the adjustment process, ensuring that the compression of the pressure springs meets the needs of use. Attached Figure Description
[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the test component of this utility model after it has been moved upwards. Figure 3 This is a schematic diagram of the connection structure between the crossbeam pressure plate and the limiting plate of this utility model; Figure 4 This utility model Figure 2 Enlarged view of section A in the middle; Figure 5 This is an exploded view of the drive board and connecting ring of this utility model; Figure 6 This is a sectional view of one side of the drive plate and connecting ring of this utility model.
[0016] In the diagram: 1. Support base; 2. Guide column; 3. Fixed top plate; 4. Crossbeam pressure plate; 41. Pressure gauge; 5. Pressure spring; 6. Limit plate; 7. Adjusting screw; 71. Adjusting knob; 8. Fixed side plate; 81. Indicator plate; 82. Scale line; 9. Drive block; 91. Connecting ring; 92. Drive plate; 10. Lifting cylinder. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1 Addressing the current issues that rigid impacts during testing can easily overload the pressure plate, and that existing reaction frame devices cannot conveniently simulate the diverse working conditions of different jack models, this embodiment provides a jack testing reaction frame device. This device uses multiple pressure springs to buffer the generated force, preventing rigid impacts from causing load and damage to the pressure plate. It is also adaptable to different testing needs, simulating the actual working scenarios of different jack models and testing their performance stability under real-world working conditions. Please refer to... Figure 1 - Figure 5The jack testing reaction frame device includes a support base 1 for supporting the jack. A pressure testing assembly is mounted on the top of the support base 1. These assemblies form the reaction frame device. Through its rigid structure, the reaction frame device provides a precisely controllable reaction force fulcrum for the jack, preventing the force from being unmeasurable or the equipment from malfunctioning due to lack of fixed support during testing. The pressure testing assembly includes guide pillars 2 located at the four corners of the support base 1, and fixed top plates 3 fixedly mounted on the tops of the four guide pillars 2. The outer peripheral walls of the four guide pillars 2 are slidably connected to… The crossbeam pressure plate 4, which is in contact with the jack rod for pressure testing, has a limiting plate 6 at the bottom of the fixed top plate 3 that is fixedly installed on the top of multiple pressure springs 5. During use, the jack to be tested is first placed on the top of the support base 1. Then, when the jack is working, the top rod of the jack moves upward, so that the fixed rod contacts the crossbeam pressure plate 4 and tightens the fixed object to output lifting force, which drives the crossbeam pressure plate 4 to move upward. At the same time, it deforms the multiple pressure springs 5, simulating the actual working scenario of the jack and testing its performance stability under actual working conditions.
[0019] When the jack rod applies pressure, if it acts directly on the pressure plate, the pressure transmission will be a rigid impact. Especially when the load surface is uneven or the pressure increases instantaneously, it can easily lead to localized stress concentration on the jack rod and the crossbeam pressure plate 4. Long-term use may cause component deformation and cracks. In order to improve the performance of the crossbeam pressure plate 4, a test method using multiple sets of pressure springs 5 is adopted, such as... Figure 1 - Figure 3 As shown, the top of the fixed top plate 3 is threadedly connected to an adjusting screw 7 that adjusts the compression of multiple sets of pressure springs 5 to adapt to tests of jacks with different ranges. The adjusting screw 7 drives the limiting plate 6 to slide, adjusting the distance between the limiting plate 6 and the crossbeam pressure plate 4. During the pressure test, the pressure of the fixed rod is first softened and transmitted through the pressure springs 5, and then applied to the load. This is equivalent to adding an elastic buffer layer in the pressure transmission path, avoiding rigid impact on the crossbeam pressure plate 4 and causing load and damage. It should be noted that before the test, the compression of multiple sets of pressure springs 5 and the height between the crossbeam pressure plate 4 and the support base 1 need to be adjusted according to the jack test of different ranges to facilitate testing of different models of jacks.
[0020] Multiple sets of pressure springs 5 are respectively sleeved on the outer peripheral wall of the guide support 2. A pressure gauge 41 for detecting the pressure of the jack is fixedly installed on the top of the crossbeam pressure plate 4. The pressure gauge 41 is used in conjunction with the crossbeam pressure plate 4. The core function of the pressure gauge is to monitor the pressure status in real time and provide data support for the testing work.
[0021] Because different jacks have different rated lifting pressures (e.g., a small jack might have a lifting capacity of 5t, while a large one might have 50t), if the compression of the pressure spring is fixed, it may only cover a narrow range of pressure tests. If the spring is too stiff, the deformation under low pressure will be insignificant; if it is too soft, it will easily exceed its elastic limit under high pressure. By changing the initial force state and deformation range of the spring, the entire jack pressure testing device can be made more flexible, accurate, and adaptable to different testing needs. Figure 1 - Figure 3 The limiting plate 6 is sleeved on the outer peripheral wall of the multiple sets of guide pillars 2. The bottom end of the adjusting screw 7 is rotatably connected to the top of the limiting plate 6, and an adjusting knob 71 is fixedly installed on the top of the adjusting screw 7. By rotating the adjusting knob 71, the adjusting knob 71 drives the adjusting screw 7 to be threadedly connected inside the fixed top plate 3, and pushes the limiting plate 6 to slide on the outer peripheral wall of the multiple sets of guide pillars 2, so that the distance between the limiting plate 6 and the crossbeam pressure plate 4 is closer, so that the multiple sets of pressure springs 5 are compressed, so that the pressure springs 5 are in a tighter state, avoiding pressure Excessive force will directly exceed the elastic limit and cause damage, thus allowing the same set of devices to be adapted to the testing of jacks of various specifications without the need to frequently replace springs with different stiffness coefficients. Conversely, the greater the distance between the limit plate 6 and the crossbeam pressure plate 4, the more relaxed the pressure spring 5 is in an overall state, so that even small pressure can produce measurable deformation. It should be noted that the outer peripheral walls of multiple sets of guide pillars 2 are all fixedly installed with components that support the bottom of the crossbeam pressure plate 4, ensuring that the initial position of the crossbeam pressure plate 4 at the guide pillar 2 is a fixed value.
[0022] Example 2 Based on Example 1, such as Figure 1 - Figure 5 As shown, the device also includes a scale 82 for precise measurement of the compression of the pressure spring 5, and an indicator plate 81 for use with it. Figure 3 - Figure 6 As shown, multiple sets of lifting cylinders 10 are fixedly installed on the top of the support base 1 to drive the pressure testing components upward. The lifting cylinders 10 adjust the distance between the crossbeam pressure plate 4 and the support base 1 to accommodate jacks of different heights. Since different models of jacks have different heights, by installing multiple sets of lifting cylinders 10 on the top of the support base 1, the distance between the crossbeam pressure plate 4 and the support base 1 can be adjusted, thus facilitating the installation of jacks of different heights.
[0023] Fixed side plates 8 are fixedly installed on both sides of the top of the fixed top plate 3. An indicator plate 81 is slidably connected to the outer wall of the fixed side plate 8, and a scale line 82 is provided on the outer wall of the fixed side plate 8. During the adjustment of the compression amount of multiple pressure springs 5, the indicator plate 81 can be slid on the outer wall of the fixed side plate 8 together. Thus, the specific value of the compression amount adjustment of multiple pressure springs 5 can be clearly seen through the cooperation between the scale line 82 and the indicator plate 81.
[0024] In order to enable the indicator plates 81 on both sides to slide simultaneously during the rotation and movement of the adjusting screw 7, the two sets of indicator plates 81 are now installed with the driving block 9 at the adjusting screw 7 via the driving plate 92, the connecting ring 91, and the driving block 9. Figure 5 - Figure 6 As shown, the ends of the two indicator plates 81 pass through the outer wall of the fixed side plate 8 and are fixedly installed with drive plates 92. The ends of the two sets of drive plates 92 that are close to each other are fixedly connected to a set of connecting rings 91. When the limit plate 6 is moved by rotating the adjusting screw 7, the drive block 9 drives the connecting ring 91 to slide at the same time, thereby driving the two indicator plates 81 to slide on the outer wall of the fixed side plate 8.
[0025] A drive block 9 is fixedly sleeved on the top of the outer peripheral wall of the adjusting screw 7 and rotatably connected inside the connecting ring 91. During the process of driving the two side indicator plates 81 to slide, the drive block 9 is inside the connecting ring 91 and can thus push the connecting ring 91 to slide.
[0026] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A test reaction frame arrangement for a jack, comprising a support base (1) for supporting a jack, characterised in that: The top of the support base (1) is provided with a pressure testing assembly. The pressure testing assembly includes guide pillars (2) set at the top of the four corners of the support base (1) and a fixed top plate (3) fixedly installed on the top of the four guide pillars (2). The outer peripheral walls of the four guide pillars (2) are slidably connected with a crossbeam pressure plate (4) that contacts the jack rod for pressure testing. The bottom end of the fixed top plate (3) is provided with a limiting plate (6) fixedly installed on the top of multiple pressure springs (5). The top of the fixed top plate (3) is threaded with an adjusting screw (7) that adjusts the compression of multiple pressure springs (5) to match the jack test of different ranges. The adjusting screw (7) drives the limiting plate (6) to slide, adjusting the distance between the limiting plate (6) and the crossbeam pressure plate (4).
2. The testing reaction frame device for a jack as set forth in claim 1, wherein: Multiple sets of pressure springs (5) are respectively sleeved on the outer peripheral wall of the guide support (2), and a pressure gauge (41) for testing the pressure of the jack is fixedly installed on the top of the crossbeam pressure plate (4).
3. The testing reaction frame device for a jack as set forth in claim 1, wherein: The limiting plate (6) is sleeved on the outer peripheral wall of multiple sets of guide pillars (2), the bottom end of the adjusting screw (7) is rotatably connected to the top of the limiting plate (6), and the top of the adjusting screw (7) is fixedly installed with an adjusting knob (71).
4. The testing reaction frame device for a jack as set forth in claim 1, wherein: The top of the support base (1) is fixedly installed with multiple sets of lifting cylinders (10) that drive the pressure test components to move upward. The lifting cylinders (10) adjust the distance between the crossbeam pressure plate (4) and the support base (1) to accommodate jacks of different heights.
5. The testing reaction frame device for a jack as set forth in claim 1, wherein: Fixed side plates (8) are fixedly installed on both sides of the top of the fixed top plate (3). An indicator plate (81) is slidably connected to the outer wall of the fixed side plate (8), and scale lines (82) are provided on the outer wall of the fixed side plate (8).
6. A testing reaction frame device for a jack as claimed in claim 5, wherein: The ends of the indicator plates (81) on both sides pass through the outer wall of the fixed side plate (8) and are fixedly installed with drive plates (92). The ends of the two sets of drive plates (92) that are close to each other are fixedly connected to a set of connecting rings (91).
7. A testing reaction frame device for a jack as claimed in claim 6, wherein: The top of the outer peripheral wall of the adjusting screw (7) is fixedly sleeved with a driving block (9) that is rotatably connected inside the connecting ring (91).