Concrete rebound apparatus
By using multiple sets of sliding rods and friction pads on the rebound instrument, it ensures that it is in contact with the concrete wall perpendicularly, solving the problems of hand fatigue and inaccurate measurement data, achieving higher measurement accuracy and hand protection.
Patent Information
- Application Number
- CN202421257924.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing rebound instrument needs to be manually held when used, which leads to fatigue in the hands after long-term use. The rebound instrument may not be able to remain perpendicular to the concrete wall, resulting in inaccurate measurement data.
A concrete rebound instrument was designed, adopting a structure of multiple sets of sliding rods and friction pads to ensure that the rebound instrument is in vertical contact with the concrete wall, and through the design of threaded rings and support components, the stability and normal use of the rebound instrument is ensured.
Through the design of multiple sets of sliding rods and friction pads, we ensure that the rebound instrument is stable and vertical during use, avoid sliding, and improve the accuracy of measurement data. At the same time, through the setting of shock-proof handle sleeves and limit blocks, we protect the hands from rebound force and reduce fatigue.
Smart Images
Figure CN223005852U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete wall measurement, and specifically relates to a concrete rebound hammer. Background Technique
[0002] The basic principle of the rebound hammer is to use a spring to drive a heavy hammer. The heavy hammer impacts the impact rod that is in vertical contact with the concrete surface with a constant kinetic energy, causing local concrete to deform and absorb part of the energy. The other part of the energy is converted into the rebound kinetic energy of the heavy hammer. When the rebound kinetic energy is all converted into potential energy, the heavy hammer rebounds to the maximum distance, and the instrument displays the maximum rebound distance of the heavy hammer in the name of the rebound value (the ratio of the maximum rebound distance to the initial length of the spring).
[0003] When the existing rebound hammer is in use, it needs to be manually held by hand to make it vertically extruded against the concrete wall before the measurement work can be carried out. During the long-term use process, the staff's hands are fatigued, and the rebound hammer often cannot be perpendicular to the concrete wall, resulting in inclined measurement, or sliding occurs during inclined measurement. In both cases, the measurement data will be inaccurate. Therefore, a concrete rebound hammer is proposed for the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a concrete rebound hammer to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] As an alternative scheme of a concrete rebound hammer of the utility model, wherein: a concrete rebound hammer includes a rebound hammer,
[0007] A threaded sleeve is fixedly connected to the outside of the rebound hammer. A limit ring is fixedly connected to the outside of the threaded sleeve. And a threaded ring is also spirally connected to the outside of the threaded sleeve. A uniformly distributed support assembly is fixedly connected to the outside of the threaded ring;
[0008] The support assembly includes a connecting rod, a fixed sleeve and a sliding rod. One end of the connecting rod is fixedly connected to the threaded ring. The other end of the connecting rod is fixedly connected to a fixed sleeve. The inside of the fixed sleeve is provided with sliding rods. A friction pad is fixedly connected to the bottom of the sliding rod.
[0009] As an alternative scheme of a concrete rebound hammer of the utility model, wherein: sliding rings are fixedly connected to the outside of the sliding rods. A spring is fixedly connected to one side of the sliding ring. And the other end of the spring is fixedly connected to the fixed sleeve.
[0010] When the existing rebound hammer is in use, it needs to be manually held by hand to make it perpendicular to the concrete wall surface and extruded before the measurement work can be carried out. During the long-term use process, the staff's hands are fatigued, and the rebound hammer often cannot be perpendicular to the concrete wall surface, resulting in inclined measurement, or sliding occurs during the inclined measurement. In both cases, the measurement data will be inaccurate. When this device is in use, through the multiple sets of sliding rods set, when the rebound hammer is in use, the friction pads at the bottom of the multiple sets of sliding rods are in contact with the wall surface in advance. At this time, the stability of the rebound hammer can be ensured, making it not easy to slide. At the same time, it can ensure that the rebound hammer is perpendicular to the concrete wall surface, ensuring the accuracy of the measurement data of the rebound hammer. When in use, the support component can also be removed by rotating the threaded ring to ensure the normal use of the rebound hammer. The settings of the sliding ring and the spring can ensure the stable extrusion of the rebound hammer to achieve the measurement work.
[0011] As an alternative scheme of a concrete rebound hammer according to the present invention, wherein: a shock-proof handle sleeve is fixedly connected to the top of the rebound hammer, and a limit block is fixedly connected to the outer side of the shock-proof handle sleeve.
[0012] As an alternative scheme of a concrete rebound hammer according to the present invention, wherein: the shock-proof handle sleeve is arranged in a hollow cylindrical shape.
[0013] When the rebound hammer is in use, people's palms directly contact the top of the rebound hammer, and the rebound force caused by the rebound will affect the palm of the hand, causing hand soreness. At this time, through the set shock-proof handle sleeve and limit block, people manually hold the shock-proof handle sleeve. At this time, the rebound force cannot directly act on the palm, achieving the purpose of protecting the hand. At the same time, the shock-proof handle sleeve also serves the purpose of facilitating people's grasping.
[0014] As an alternative scheme of a concrete rebound hammer according to the present invention, wherein: a fixed ring is fixedly connected to the outer side of the rebound hammer, a support rod is fixedly connected to one side of the fixed ring, a support handle is fixedly connected to the other end of the support rod, and a rubber disc is fixedly connected to the other end of the support handle.
[0015] As an alternative scheme of a concrete rebound hammer according to the present invention, wherein: the support rod is arranged obliquely.
[0016] When measuring at a high place, since the hand needs to be lifted, at this time the hand is lifted and needs to act vertically on one side of the rebound hammer. Therefore, it is even more impossible to stably extrude the rebound hammer, and the staff is even more fatigued. At this time, the set support rod, support handle and rubber disc can ensure that the rubber disc directly acts on the lower part, ensuring that it acts vertically on the rebound hammer, thereby stably extruding the rebound hammer and then carrying out stable measurement work.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] When the utility model is in use, through a plurality of sets of sliding rods arranged, when the rebound hammer is in use, the friction pads at the bottoms of the plurality of sets of sliding rods are in contact with the wall surface in advance. At this time, the stability of the rebound hammer can be ensured, making it not easy to slide. At the same time, it can ensure that the rebound hammer is perpendicular to the concrete wall surface, ensuring the accuracy of the measurement data of the rebound hammer;
[0019] When in use, the support assembly can also be removed by rotating the threaded ring to ensure the normal use of the rebound hammer;
[0020] When the rebound hammer is in use, the reaction force caused by the rebound of the rebound hammer will affect the palm of the hand. At this time, through the shock-proof handle sleeve and the limit block provided, people manually hold the shock-proof handle sleeve. At this time, the reaction force cannot directly act on the palm, achieving the purpose of protecting the hand;
[0021] When measuring at a high place, since the hand needs to be lifted, it is even more impossible to stably squeeze the rebound hammer to make it perform normal measurement work. At this time, the support rod, the support handle and the rubber disc provided can ensure stable squeezing of the rebound hammer, and then perform stable measurement work. Description of the Drawings
[0022] Figure 1 is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 is the utility model Figure 1 Schematic diagram of the structure at position A;
[0024] Figure 3 is a schematic diagram of the structure of the support assembly of the utility model;
[0025] Figure 4 is a cross-sectional view of the fixing sleeve of the utility model.
[0026] In the figure: 1, rebound hammer; 2, threaded sleeve; 3, limit ring; 4, threaded ring; 5, support assembly; 501, connecting rod; 502, fixing sleeve; 503, sliding rod; 504, friction pad; 505, sliding ring; 506, spring; 6, shock-proof handle sleeve; 7, limit block; 8, fixing ring; 9, support rod; 10, support handle; 11, rubber disc. Detailed Embodiments
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0028] Embodiment 1
[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present utility model provides a technical solution:
[0030] A concrete rebound hammer, including a rebound hammer 1,
[0031] The outer side of the above-mentioned rebound hammer 1 is fixedly connected with a threaded sleeve 2, the outer side of the above-mentioned threaded sleeve 2 is fixedly connected with a limit ring 3, and a threaded ring 4 is also spirally connected to the outer side of the threaded sleeve 2. The outer side of the above-mentioned threaded ring 4 is fixedly connected with uniformly distributed support assemblies 5;
[0032] The above-mentioned support assembly 5 includes a connecting rod 501, a fixed sleeve 502 and a sliding rod 503. One end of the above-mentioned connecting rod 501 is fixedly connected with the threaded ring 4, the other end of the above-mentioned connecting rod 501 is fixedly connected with a fixed sleeve 502, the inside of the above-mentioned fixed sleeve 502 is provided with a sliding rod 503, and the bottom of the above-mentioned sliding rod 503 is fixedly connected with a friction pad 504.
[0033] The outer sides of the above-mentioned sliding rods 503 are all fixedly connected with sliding rings 505. One side of the above-mentioned sliding ring 505 is fixedly connected with a spring 506, and the other end of the spring 506 is fixedly connected with the fixed sleeve 502.
[0034] When the existing rebound hammer is in use, it is necessary for the operator to manually hold the rebound hammer and press it vertically against the concrete wall surface to carry out the measurement work. However, during the long-term use process, the operator's hand is fatigued, and it often occurs that the rebound hammer is not perpendicular to the concrete wall surface, resulting in inclined measurement, or sliding occurs during the inclined measurement. At this time, the measurement data will be inaccurate. When this device is in use, through the multi-group sliding rods 503 provided, when the rebound hammer 1 is in use, the friction pads 504 at the bottoms of the multi-group sliding rods 503 come into contact with the wall surface in advance. At this time, the stability of the rebound hammer 1 can be ensured, making it not easy to slide, and at the same time, it can ensure that the rebound hammer 1 is perpendicular to the concrete wall surface, ensuring the accuracy of the measurement data of the rebound hammer 1. When in use, the support assembly 5 can also be removed by rotating the threaded ring 4 to ensure the normal use of the rebound hammer 1. The settings of the sliding ring 505 and the spring 506 can ensure that the rebound hammer 1 is stably pressed to achieve the measurement work.
[0035] Embodiment 2
[0036] This embodiment is an improvement made to Embodiment 1. Please refer to Figure 1 , specifically, the top of the above-mentioned rebound hammer 1 is fixedly connected with a shock-proof handle sleeve 6, and the outer side of the above-mentioned shock-proof handle sleeve 6 is fixedly connected with a limit block 7.
[0037] The above-mentioned shock-proof handle sleeve 6 is arranged in a hollow cylindrical shape.
[0038] When the rebound hammer 1 is in use, people's palms directly contact the top of the rebound hammer 1. The rebound force caused by the rebound will affect the palm of the hand, causing soreness in the hand. At this time, through the shock-proof handle sleeve 6 and the limit block 7 provided, people manually hold the shock-proof handle sleeve 6. At this time, the rebound force cannot directly act on the palm, achieving the purpose of protecting the hand. At the same time, the shock-proof handle sleeve 6 also serves the purpose of facilitating people's grasping.
[0039] Embodiment 3
[0040] This embodiment is an improvement made to Embodiment 2. Please refer to Figure 1 , specifically, a fixing ring 8 is fixedly connected to the outside of the above-mentioned rebound hammer 1. One side of the above-mentioned fixing ring 8 is fixedly connected to a support rod 9. The other end of the above-mentioned support rod 9 is fixedly connected to a support handle 10. The other end of the above-mentioned support handle 10 is fixedly connected to a rubber disc 11.
[0041] The above-mentioned support rod 9 is inclined.
[0042] When measuring at a high place, since the hand needs to be lifted upwards, at this time the hand is lifted upwards and needs to act vertically on one side of the rebound hammer 1. Therefore, it is even more impossible to stably squeeze the rebound hammer 1, and at the same time the staff is more tired. At this time, the support rod 9, the support handle 10 and the rubber disc 11 provided can ensure that the rubber disc 11 directly below is acted on, can ensure vertical action on the rebound hammer 1, and then stably squeeze the rebound hammer 1, and then carry out stable measurement work.
[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A concrete rebound test hammer, characterized in that: It includes a rebound hammer (1), The outer side of the rebound tester (1) is fixedly connected to a threaded sleeve (2), the outer side of the threaded sleeve (2) is fixedly connected to a limit ring (3), and the outer side of the threaded sleeve (2) is also spirally connected to a threaded ring (4), and the outer side of the threaded ring (4) is fixedly connected to evenly distributed support components (5); The support assembly (5) comprises a connecting rod (501), a fixing sleeve (502) and a sliding rod (503); one end of the connecting rod (501) is fixedly connected to the threaded ring (4); the other end of the connecting rod (501) is fixedly connected to the fixing sleeve (502); the interior of the fixing sleeve (502) is provided with a sliding rod (503); the bottom of the sliding rod (503) is fixedly connected to a friction pad (504); A fixing ring (8) is fixedly connected to the outer side of the rebound tester (1), a support rod (9) is fixedly connected to one side of the fixing ring (8), a support handle (10) is fixedly connected to the other end of the support rod (9), and a rubber disc (11) is fixedly connected to the other end of the support handle (10).
2. A concrete rebound test hammer according to claim 1, characterized in that: The outer sides of the sliding rods (503) are fixedly connected with sliding rings (505), one side of the sliding rings (505) is fixedly connected with a spring (506), and the other end of the spring (506) is fixedly connected with the fixing sleeve (502).
3. A concrete rebound test hammer according to claim 1, characterized in that: The top of the rebound tester (1) is fixedly connected to a shockproof handle sleeve (6), and the outer side of the shockproof handle sleeve (6) is fixedly connected to a limiting block (7).
4. A concrete rebound test hammer according to claim 3, characterized in that: The shockproof handle sleeve (6) is arranged in a hollow cylindrical shape.
5. The concrete rebound test hammer according to claim 1, characterized in that: The support rod (9) is arranged in an inclined manner.