Concrete rebound apparatus
By designing a recording disc and sliding structure on the concrete rebound hammer, the problem of needing to manually record test results in the existing technology is solved, realizing automatic recording of test results and simplifying operation.
Patent Information
- Application Number
- CN202520402375.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing concrete rebound hammers require paper and pen to record test results after each test, which is inconvenient for continuous rebound testing.
A concrete rebound hammer was designed, equipped with a recording disk and a sliding structure. Through the use of scale lines and insertion rods, the test results are automatically recorded, and the operation can be completed with one hand.
It enables automatic recording of test results, simplifies the operation process, and improves the continuity and convenience of testing.
Smart Images
Figure CN223926150U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rebound hammer technology, and in particular to a concrete rebound hammer. Background Technology
[0002] Concrete rebound hammers are widely used for non-destructive testing of concrete compressive strength. They work by using a spring-driven hammer to strike a spring rod perpendicular to the concrete surface with constant kinetic energy, thus testing the concrete's compressive strength. However, existing rebound hammers require the operator to record the results with pen and paper after each test, which is inconvenient for continuous testing. Therefore, a new concrete rebound hammer is proposed. Utility Model Content
[0003] To address the problem that existing rebound hammers require testers to record test results with pen and paper after each test, which is inconvenient for continuous rebound testing, this application provides a concrete rebound hammer.
[0004] The concrete rebound hammer provided in this application adopts the following technical solution:
[0005] A concrete rebound hammer includes a rebound hammer body. A recording disk is fixedly connected to the handle of the rebound hammer body. The outer surface of the recording disk is fixedly connected with scale lines distributed in a ring array. The recording disk has multiple sets of annular grooves. A slide block is slidably installed inside each annular groove. An index is fixedly connected to the side of each slide block near the scale line. A rod is inserted into the center of each slide block. Limiting holes are distributed in a ring array on the outer surface of each annular groove. The rod can move into or out of the limiting holes.
[0006] Preferably, the end of the insertion rod located outside the slide is configured as a T-shaped structure, and a spring is sleeved on the outer surface of the insertion rod. One end of the spring is fixedly connected to the end of the insertion rod, and the other end of the spring is fixedly connected to the slide.
[0007] Preferably, the limiting hole and the moving direction of the insertion rod are both arranged radially along the annular groove.
[0008] Preferably, the inner surface of the annular groove is provided with sliding grooves on both sides, the sliding grooves are annular, and the sliding block is fixedly connected to both sides of the sliding block, and the two sets of sliding blocks are respectively slidably installed in the corresponding sliding grooves.
[0009] Preferably, the outer surface of the slider is concave to form a mounting groove, and rollers are rotatably mounted inside the mounting groove of the slide groove. Part of the rollers are located outside the mounting groove, and the rollers are in rolling cooperation with the slide groove.
[0010] In summary, this application includes the following beneficial technical effects:
[0011] This invention, through the use of a recording disk, annular groove, and slide, can record the results of each test after the test. Furthermore, the recording device is integrated with the rebound hammer body, and the recording operation can be performed with one hand, making it convenient to use. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of the application embodiment;
[0013] Figure 2 This is a partial structural schematic diagram of an embodiment of the application;
[0014] Figure 3 This is an example of an application. Figure 1 Enlarged view of point A in the middle.
[0015] Explanation of reference numerals in the attached diagram: 1. Rebound hammer body; 2. Recording disk; 3. Scale line; 4. Annular groove; 5. Limiting hole; 6. Slide groove; 7. Slide base; 8. Insert rod; 9. Spring; 10. Index; 11. Slider; 12. Roller. Detailed Implementation
[0016] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0017] This application discloses a concrete rebound hammer, including a rebound hammer body 1. A recording disk 2 is fixedly connected to the handle of the rebound hammer body 1. A scale line 3 arranged in a ring array is fixedly connected to the outer surface of the recording disk 2. The recording disk 2 has multiple sets of annular grooves 4. A slide seat 7 is slidably installed inside each annular groove 4. An index 10 is fixedly connected to the side of the slide seat 7 near the scale line 3. A rod 8 is inserted into the center of each slide seat 7. Limiting holes 5 arranged in a ring array are opened on the outer surface of each annular groove 4. The rod 8 can move into or out of the limiting holes 5.
[0018] In this embodiment, the slide blocks 7 are arranged from left to right as the first group, the second group, ... the nth group according to the rebound detection order. After the rebound meter body 1 performs the first test, the user reads the reading on the rebound meter body 1 and moves the first group of slide blocks 7 so that the index 10 on the first group of slide blocks 7 moves to the scale line 3 that is equal to the reading on the rebound meter body 1. The insertion rod 8 on the first group of slide blocks 7 is then inserted into the corresponding limiting hole 5 to fix the position of the first group of slide blocks 7. Following the above steps, after each test, the index 10 on the corresponding slide block 7 is adjusted to the corresponding scale line 3 so that the test results can be recorded after the test. Moreover, the above recording device is integrated with the rebound meter body 1, and the recording operation can be performed with one hand, making it convenient to use.
[0019] It should be noted that the structure and detection principle of the rebound hammer body 1 are all existing conventional technologies, and will not be described in detail here. The model of the rebound hammer body 1 is not required here.
[0020] Furthermore, the end of the insertion rod 8 located outside the slide block 7 is configured as a T-shaped structure, and a spring 9 is sleeved on the outer surface of the insertion rod 8. One end of the spring 9 is fixedly connected to the end of the insertion rod 8, and the other end of the spring 9 is fixedly connected to the slide block 7.
[0021] Furthermore, the moving direction of the limiting hole 5 and the insertion rod 8 is both arranged radially along the annular groove 4.
[0022] In this embodiment, by setting the spring 9, the insertion rod 8 can be stably inserted into the limiting hole 5, preventing the insertion rod 8 from moving out of the limiting hole 5. When adjusting the position of the slide block 7, the insertion rod 8 is pulled out from the limiting hole 5, the spring 9 is stretched, and the insertion rod 8 no longer interferes with the movement of the slide block 7, so the slide block 7 can be moved along the annular groove 4. After the position of the slide block 7 is adjusted, the insertion rod 8 is inserted into the corresponding limiting hole 5 to fix the position of the slide block 7.
[0023] Furthermore, sliding grooves 6 are provided on both sides of the inner surface of the annular groove 4. The sliding grooves 6 are annular. Slider blocks 11 are fixedly connected to both sides of the slide block 7. The two sets of sliders 11 are slidably installed inside the corresponding sliding grooves 6.
[0024] Furthermore, the outer surface of the slider 11 is concave to form a mounting groove, and rollers 12 are rotatably mounted inside the mounting groove of the slide groove 6. The rollers 12 are partially located outside the mounting groove, and the rollers 12 are in rolling engagement with the slide groove 6.
[0025] In this embodiment, a slider 11 and a roller 12 are provided to facilitate the movement of the slide block 7 along the annular groove 4.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] Finally: 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.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A concrete rebound hammer comprising a rebound hammer body (1), characterized in that, The rebound body (1) handle is fixedly connected with a record disc (2), the record disc (2) outer surface is fixedly connected with a ring array distribution scale line (3), the record disc (2) is provided with a plurality of ring grooves (4), the ring groove (4) inside is slidably installed with a sliding seat (7), the sliding seat (7) is fixedly connected with an index (10) on the side close to the scale line (3), the sliding seat (7) center is inserted with a plug rod (8), the ring groove (4) outer surface is provided with a ring array distribution limiting hole (5), the plug rod (8) can be moved into or out of the limiting hole (5).
2. A concrete rebound hammer according to claim 1, wherein The one end of the plug rod (8) outside the sliding seat (7) is provided with a T-shaped structure, the plug rod (8) outer surface is sleeved with a spring (9), one end of the spring (9) and the plug rod (8) end fixedly connected, the other end of the spring (9) and the sliding seat (7) fixedly connected.
3. A concrete rebound hammer according to claim 2, wherein, The limiting hole (5) and the moving direction of the plug rod (8) are all along the radial direction of the ring groove (4).
4. A concrete rebound hammer according to claim 3, wherein The ring groove (4) inner surface both sides are provided with a sliding groove (6), the sliding groove (6) is provided with a ring, the sliding seat (7) both sides are fixedly connected with a sliding block (11), two groups of sliding blocks (11) are slidably installed in the corresponding sliding groove (6) inside.
5. A concrete rebound hammer according to claim 4, wherein The sliding block (11) outer surface is inwardly concave to form a mounting groove, the sliding groove (6) mounting groove inside is rotatably installed with a roller (12), the roller (12) is partially located outside the mounting groove, and the roller (12) and the sliding groove (6) are rollingly matched.