Concrete impact experiment sample positioning and adjusting structure
By using a concrete impact test specimen positioning and adjustment structure, the problem of difficulty in adjusting the impact position in existing devices has been solved, enabling flexible positioning and stable clamping of the specimen, thus improving the flexibility of the experiment and the accuracy of the data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGAN UNIV
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-17
AI Technical Summary
Existing concrete impact testing equipment makes it difficult to flexibly adjust the height, angle, and lateral position of the impact point, which limits the diversity and accuracy of experimental data and reduces the flexibility and repeatability of the experiment.
A concrete impact test specimen positioning and adjustment structure is adopted, including a base, a support plate, an adjustment mechanism, and a clamping and fixing mechanism. Through the combined use of the adjustment mechanism and the clamping and fixing mechanism, the impact position can be flexibly adjusted and the specimen can be stably clamped.
It improves the flexibility and accuracy of specimen positioning in concrete impact tests, ensures the stability of specimen position, and enhances the safety and reliability of the experiment.
Smart Images
Figure CN224137019U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of concrete experimental devices, and in particular to a concrete impact test specimen positioning and adjustment structure. Background Technology
[0002] In modern civil engineering, concrete, as one of the most important building materials, directly affects the safety and durability of building structures under extreme loads such as earthquakes, explosions, and heavy object impacts. With the continuous expansion of infrastructure construction, research on concrete material properties has become increasingly in-depth. Obtaining its mechanical properties data through scientifically sound impact tests has become a crucial link in ensuring project quality and promoting technological innovation.
[0003] Concrete impact testing equipment typically consists of an impact loading system, a specimen clamp, and a measuring device. The impact loading system generally includes an impact hammer and a guide device. The impact hammer is raised to a certain height and then allowed to fall freely, generating an impact force that acts on the specimen. The specimen clamp is used to fix the concrete specimen, ensuring its stability during the impact. The measuring device includes accelerometers, strain gauges, etc., which can measure parameters such as acceleration and strain in real time during the impact process. During operation, the concrete specimen is mounted on the clamp, the impact loading is initiated, the impact hammer falls and impacts the specimen, and the measuring device simultaneously collects relevant data to study the mechanical properties of concrete under impact loading.
[0004] In existing technologies, most devices adopt a fixed impact position design, which makes it difficult to flexibly adjust the height, angle and lateral position of the impact point according to different experimental needs. This makes it impossible for researchers to fully simulate the complex and varied impact conditions in real-world scenarios, limiting the diversity and accuracy of experimental data, and reducing the flexibility and repeatability of experiments. To address these issues, a concrete impact test specimen positioning adjustment structure is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a concrete impact test specimen positioning and adjustment structure, which aims to improve the problem that some existing devices are difficult to adjust the concrete impact position.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A concrete impact test specimen positioning and adjustment structure includes a base, a support plate fixedly connected to the top of the base, an adjustment mechanism slidably connected to the outside of the support plate, and a clamping and fixing mechanism provided inside the base.
[0008] The adjusting mechanism includes a crossbar, the outside of which is fixedly connected to the inside of the support plate. A sliding plate is slidably connected to the outside of the crossbar. An L-shaped plate is fixedly connected to the top of the sliding plate. A round rod is slidably connected to the inside of the L-shaped plate. A limiting plate is fixedly connected to the bottom of the round rod. The bottom of the limiting plate is slidably connected to the inside groove of the crossbar. An elastic component is provided on the outside of the round rod.
[0009] As a further description of the above technical solution:
[0010] The clamping and fixing mechanism includes a long rod, the outside of which is fixedly connected to the inside of the base. A sliding clamp is fixedly connected to the outside of the long rod. A return spring is sleeved on the outside of the long rod. One end of the return spring is fixedly connected to the outside of the sliding clamp, and the other end of the return spring is fixedly connected to the inner wall of the base. A sliding component is fixedly connected to the outside of the sliding clamp.
[0011] As a further description of the above technical solution:
[0012] The elastic component includes a limiting spring, the outer part of which is sleeved on the outside of the round rod, the bottom of which is fixedly connected to the top of the limiting plate, and the top of which is fixedly connected to the bottom of the L-shaped plate.
[0013] As a further description of the above technical solution:
[0014] A guide rod is fixedly connected to the bottom of the L-shaped plate, and the bottom of the guide rod is fixedly connected to the top of the sliding plate. The inside of the limiting plate is slidably connected to the outside of the guide rod.
[0015] As a further description of the above technical solution:
[0016] The sliding assembly includes a connecting rod, one outer end of which is fixedly connected to the outer side of the sliding clamp, and the other outer side of which is fixedly connected to a pulling frame. The outer side of the connecting rod is slidably connected to the inner groove of the base.
[0017] As a further description of the above technical solution:
[0018] A placement plate is fixedly connected inside the base, and a fixing clamp is fixedly connected inside the placement plate;
[0019] As a further description of the above technical solution:
[0020] The sliding clamp is externally slidably connected to the top of the placement plate, the top of which is used to place concrete blocks;
[0021] As a further description of the above technical solution:
[0022] An impact sleeve is fixedly connected inside the sliding plate, and the long rod is fixedly connected outside the fixed clamping plate.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, by pulling the limiting plate, the round rod slides inside the L-shaped plate, the limiting spring contracts, and the sliding plate can be slid. When the limiting plate is released, the limiting spring resets and drives the limiting plate to insert into the groove of the crossbar, thereby realizing the adjustment and limiting of the horizontal position of the sliding plate. This allows for convenient adjustment of the position of the impact sleeve to adapt to different experimental needs, improving the flexibility and accuracy of sample positioning in concrete impact experiments.
[0025] 2. In this utility model, the operator manually pulls the pulling frame, which drives the sliding clamp to slide on the long rod via the connecting rod. After being released, the return spring pushes the sliding clamp to return to its original position, thus achieving the clamping and releasing of the concrete sample. The clamping distance can be adjusted according to the sample size. The operation is simple, and the concrete sample can be firmly fixed to ensure the stability of the sample position in the impact test, thereby improving the safety and reliability of the experiment. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the concrete impact test specimen positioning and adjustment structure proposed in this utility model.
[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0028] Figure 3 This is a schematic diagram of the pull frame of the concrete impact test specimen positioning and adjustment structure proposed in this utility model.
[0029] Figure 4 for Figure 3 Enlarged view of point B in the middle.
[0030] Legend:
[0031] 1. Base; 2. Support plate; 3. Crossbar; 4. Sliding plate; 5. Impact sleeve; 6. L-shaped plate; 7. Round rod; 8. Limiting plate; 9. Limiting spring; 10. Guide rod; 11. Placement plate; 12. Fixing clamp; 13. Long rod; 14. Sliding clamp; 15. Return spring; 16. Connecting rod; 17. Pulling frame. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1 to 2 An embodiment of this utility model provides a concrete impact test specimen positioning and adjustment structure, including a base 1. The base 1 serves as the basic support component of the entire positioning and adjustment structure. A support plate 2 is fixedly connected to the top of the base 1. The support plate 2 provides vertical support and guidance for the adjustment mechanism, ensuring the stability and straightness of the adjustment mechanism during the sliding process. The adjustment mechanism is slidably connected to the outside of the support plate 2. A clamping and fixing mechanism is provided inside the base 1.
[0034] The adjustment mechanism includes a crossbar 3, which provides a sliding track for the sliding plate 4 and cooperates with the limiting plate 8 to achieve horizontal positioning and guidance of the sliding plate 4. The crossbar 3 is externally fixedly connected to the inside of the support plate 2, and the sliding plate 4 is slidably connected to the outside of the crossbar 3. By sliding the sliding plate 4, the horizontal position of the impact sleeve 5 can be adjusted to adapt to different experimental requirements. An L-shaped plate 6 is fixedly connected to the top of the sliding plate 4, which provides a sliding guide for the round rod 7 to ensure the linearity and stability of the round rod 7's movement. The round rod 7 is slidably connected inside the L-shaped plate 6, in the elastic component... Under the action of the rod, the sliding plate 4 is limited in the horizontal direction. The bottom of the round rod 7 is fixedly connected to the limiting plate 8. Under the drive of the round rod 7, the limiting plate 8 slides in the inner groove of the crossbar 3, which plays the role of limiting the horizontal position of the sliding plate 4. The bottom of the limiting plate 8 is slidably connected in the inner groove of the crossbar 3. The outside of the round rod 7 is provided with an elastic component. The bottom of the L-shaped plate 6 is fixedly connected to the guide rod 10. The guide rod 10 provides guidance for the movement of the limiting plate 8. The bottom of the guide rod 10 is fixedly connected to the top of the sliding plate 4. The inside of the limiting plate 8 is slidably connected to the outside of the guide rod 10.
[0035] The elastic component includes a limiting spring 9, which provides elastic force to the limiting plate 8 so that the limiting plate 8 is inserted into the groove in the crossbar 3. The outer part of the limiting spring 9 is sleeved on the outside of the round rod 7. The bottom of the limiting spring 9 is fixedly connected to the top of the limiting plate 8, and the top of the limiting spring 9 is fixedly connected to the bottom of the L-shaped plate 6.
[0036] Reference Figures 3 to 4The clamping and fixing mechanism includes a long rod 13, which provides a sliding track for the sliding clamp 14. The long rod 13 is externally fixedly connected to the inside of the base 1, and the sliding clamp 14 is externally fixedly connected to the long rod 13. The sliding clamp 14 slides on the long rod 13 and cooperates with the fixed clamp 12 to realize the clamping and releasing action of the concrete sample. The position of the sliding clamp 14 can be adjusted to adapt to the clamping requirements of concrete samples of different sizes. A return spring 15 is sleeved on the outside of the long rod 13. The return spring 15 can provide the clamping force of the sliding clamp 14 on the concrete sample. One end of the return spring 15 is fixedly connected to the outside side of the sliding clamp 14, and the other end of the return spring 15 is fixedly connected to the inner wall of the base 1. A sliding component is fixedly connected to the outside of the sliding clamp 14.
[0037] The sliding assembly includes a connecting rod 16, which transmits the force applied by the operator to the pulling frame 17 to the sliding clamp 14, enabling the sliding clamp 14 to slide on the long rod 13. One outer end of the connecting rod 16 is fixedly connected to the outer side of the sliding clamp 14, and the other outer side of the connecting rod 16 is fixedly connected to the pulling frame 17. The pulling frame 17 provides a force application point for the operator, allowing the operator to manually operate the pulling frame 17 to move the sliding clamp 14, thereby achieving the clamping and releasing action of the concrete sample. The outer side of the connecting rod 16 is slidably connected in the inner groove of the base 1.
[0038] Reference Figure 1 and Figure 3 The base 1 has a fixed internal connection to a placement plate 11, which provides a platform for placing concrete samples to ensure stable placement. It also works with the sliding clamp 14 and the fixed clamp 12 to accurately position and hold the samples. The placement plate 11 has a fixed internal connection to a fixed clamp 12, which serves as the fixed end for holding the concrete samples. Together with the sliding clamp 14, it clamps and fixes the samples. The external sliding clamp 14 is slidably connected to the top of the placement plate 11, which is used to place concrete blocks. The sliding plate 4 has a fixed internal connection to an impact sleeve 5, which restricts the movement trajectory of the impactor. The long rod 13 is externally fixedly connected to the inside of the fixed clamp 12.
[0039] Working principle: When conducting a concrete impact test, the operator manually pulls the pulling frame 17, which drives the sliding clamp 14 to slide on the long rod 13 through the connecting rod 16, increasing the distance between the sliding clamp 14 and the fixed clamp 12. At the same time, the return spring 15 is compressed. After the concrete block is placed in, the pulling frame 17 is released, and the return spring 15 restores its deformation and generates elastic force. The elastic force pushes the sliding clamp 14 to return to its original position, and the sliding clamp 14 and the fixed clamp 12 cooperate to clamp the concrete block.
[0040] When adjusting the impact position on the concrete sample, first pull the limiting plate 8 to disengage it from the groove of the crossbar 3. At the same time, the round rod 7 slides within the L-shaped plate 6, and the limiting spring 9 contracts. Then, the sliding plate 4 can be slid and moves on the crossbar 3. After adjusting the position, release the limiting plate 8. The limiting spring 9 returns to its original deformation and generates elastic force. The elastic force causes the limiting plate 8 to insert into the groove of the crossbar 3, thus limiting the sliding plate 4 in the horizontal direction. The guide rod 10 provides guidance for the movement of the limiting plate 8. Finally, the impactor passes through the impact sleeve 5 to conduct an impact test on the concrete block.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A concrete impact test specimen positioning and adjustment structure, including a base (1), characterized in that: The top of the base (1) is fixedly connected to a support plate (2), the outside of the support plate (2) is slidably connected to an adjustment mechanism, and the inside of the base (1) is provided with a clamping and fixing mechanism. The adjustment mechanism includes a crossbar (3), which is fixedly connected to the outside of the support plate (2) and slidably connected to the outside of the crossbar (3). An L-shaped plate (6) is fixedly connected to the top of the sliding plate (4), and a round rod (7) is slidably connected to the inside of the L-shaped plate (6). A limiting plate (8) is fixedly connected to the bottom of the round rod (7), and the bottom of the limiting plate (8) is slidably connected to the inner groove of the crossbar (3). An elastic component is provided on the outside of the round rod (7).
2. The concrete impact test specimen positioning adjustment structure according to claim 1, characterized by: The clamping and fixing mechanism includes a long rod (13), the outside of which is fixedly connected to the inside of the base (1), a sliding clamp (14) is fixedly connected to the outside of the long rod (13), a return spring (15) is sleeved on the outside of the long rod (13), one end of the return spring (15) is fixedly connected to the outside side of the sliding clamp (14), the other end of the return spring (15) is fixedly connected to the inner wall of the base (1), and a sliding component is fixedly connected to the outside of the sliding clamp (14).
3. The concrete impact test specimen positioning adjustment structure according to claim 1, characterized by: The elastic component includes a limiting spring (9), which is sleeved on the outside of the round rod (7). The bottom of the limiting spring (9) is fixedly connected to the top of the limiting plate (8), and the top of the limiting spring (9) is fixedly connected to the bottom of the L-shaped plate (6).
4. The concrete impact test specimen positioning adjustment structure according to claim 1, characterized by: The bottom of the L-shaped plate (6) is fixedly connected to a guide rod (10), the bottom of the guide rod (10) is fixedly connected to the top of the sliding plate (4), and the inside of the limiting plate (8) is slidably connected to the outside of the guide rod (10).
5. The concrete impact test specimen positioning adjustment structure according to claim 2, characterized by: The sliding assembly includes a connecting rod (16), one end of which is fixedly connected to the outer side of the sliding clamp (14), and the other side of which is fixedly connected to a pulling frame (17). The outer side of the connecting rod (16) is slidably connected to the inner groove of the base (1).
6. The concrete impact test specimen positioning adjustment structure according to claim 2, characterized by: The base (1) is fixedly connected to a placement plate (11), and the placement plate (11) is fixedly connected to a fixing clamp (12).
7. The concrete impact test specimen positioning adjustment structure according to claim 6, characterized by: The sliding clamp (14) is externally slidably connected to the top of the placement plate (11), the top of which is used to place concrete blocks.
8. The concrete impact test specimen positioning adjustment structure according to claim 6, characterized by: An impact sleeve (5) is fixedly connected inside the sliding plate (4), and the long rod (13) is fixedly connected outside the fixed clamp (12).