Aluminum tennis racket impact detection support table
Patent Information
- Application Number
- CN202522319254.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0004]本实用新型的目的在于提供一种铝制网球拍抗冲击检测支撑台，以解决上述背景技术提出的目前铝制网球拍抗冲击检测支撑台缺乏对拍框的有效限位，导致检测过程中拍框易产生不规则颤动、扭曲或轻微移位，影响冲击测试稳定性和结果准确性的问题
[0011]与现有技术相比，本实用新型的有益效果是：该铝制网球拍抗冲击检测支撑台能够有效稳定拍框姿态，减少冲击时的异常振动和位移，提高了检测的重复性和准确性，结构简单，实用性强。该铝制网球拍抗冲击检测支撑台通过环形限位框支架与调节连杆组件的配合设计，实现了对拍框外围的空间限位与高度可调，结合上弧形段内侧的柔性贴合层，在不干扰拍框自由振动的前提下抑制其大幅偏移，且通过夹持机构对拍柄的稳固夹持，确保冲击过程中拍体整体不松动，整体结构协同作用，显著提升了检测状态的一致性和数据可靠性。
Smart Images
Figure CN224839647U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tennis racket manufacturing technology, specifically to an aluminum tennis racket impact resistance testing support platform. Background Technology
[0002] With the popularization of tennis and the improvement of competitive levels, tennis rackets, as core equipment, have seen their structural strength and durability become important indicators for product quality control. Aluminum tennis rackets, due to their lightweight and low cost, still hold a certain market share in the low-to-mid-range market. During the production process, impact resistance testing is a crucial step in ensuring product quality, typically using simulated ball impacts to assess the frame's resistance to deformation and fracture.
[0003] Currently, most common impact resistance testing stands employ a rigid clamping structure, horizontally fixing the handle of the tennis racket with the racket face vertically upwards. An impact device then applies impact force to the center of the racket frame from above. However, this type of stand presents a significant problem in practical use: due to the inherent elasticity of the aluminum frame, when the racket face is completely suspended in the air, the frame experiences irregular localized vibrations and twisting upon impact, leading to uneven stress distribution and affecting the accuracy of the test results. Furthermore, some stands lack effective restraint on the frame edges, allowing for slight displacement or sliding during impact, resulting in inconsistent stress states in each test and making it difficult to accurately reflect the material's actual impact resistance. Utility Model Content
[0004] The purpose of this invention is to provide an aluminum tennis racket impact resistance testing support platform to solve the problem mentioned in the background art that the current aluminum tennis racket impact resistance testing support platform lacks effective limiting of the racket frame, which leads to irregular vibration, twisting or slight displacement of the racket frame during the testing process, affecting the stability and accuracy of the impact test results.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum tennis racket impact resistance testing support platform, including a base, a column at the top of the base, a clamping mechanism for clamping the tennis racket handle installed on the column, an annular limiting frame bracket above the clamping mechanism, the annular limiting frame bracket being connected to the column through symmetrically arranged adjusting rod assemblies, the annular limiting frame bracket being constructed by splicing an upper arc segment, a lower arc segment and a lateral connecting arm, and a flexible bonding layer being provided on the inner side of the upper arc segment.
[0006] Preferably, the adjusting rod assembly includes a first adjusting rod and a second adjusting rod. One end of the first adjusting rod is hinged to the outside of a sliding sleeve provided on the column, and the other end of the first adjusting rod is hinged to the middle of the second adjusting rod. One end of the second adjusting rod is hinged to the outside of a lateral connecting arm, and the other end of the second adjusting rod is provided with a threaded section. The threaded section passes through the through hole of a guide block fixed on the sliding sleeve and is locked and fixed by a locking nut.
[0007] Preferably, the bottom surfaces of both ends of the upper arc segment are provided with dovetail groove interfaces, and the top of the lateral connecting arm is provided with a dovetail tenon that matches the dovetail groove interface. After the dovetail tenon is inserted into the dovetail groove interface, it is locked and fixed by a vertically inserted fastening screw.
[0008] Preferably, the outer sides of both ends of the lower arc segment are provided with L-shaped slots, and the bottom end of the lateral connecting arm is provided with a hook part that engages with the L-shaped slot. After the hook part is engaged in the L-shaped slot, it is axially locked by a positioning pin that is transversely inserted into the side wall of the lateral connecting arm.
[0009] Preferably, the flexible bonding layer is fixed to the inner arc surface of the upper arc segment by an adhesive method, and the flexible bonding layer is made of silicone material, with corrugated grooves evenly distributed on its surface along the arc length direction.
[0010] Preferably, the clamping mechanism includes a mounting base fixed to the column, and a T-shaped groove is provided on the mounting base laterally. A left clamping block and a right clamping block are slidably fitted in the T-shaped groove. An adjusting screw is provided on the outer side of the left clamping block and the right clamping block. The adjusting screw is screwed into the threaded hole of the mounting base through a threaded structure.
[0011] Compared with existing technologies, the beneficial effects of this utility model are: the aluminum tennis racket impact resistance testing support platform can effectively stabilize the racket frame posture, reduce abnormal vibration and displacement during impact, improve the repeatability and accuracy of testing, and has a simple structure and strong practicality. Through the cooperative design of the annular limiting frame bracket and the adjusting linkage assembly, the aluminum tennis racket impact resistance testing support platform achieves spatial limitation and height adjustment of the racket frame's periphery. Combined with the flexible bonding layer on the inner side of the upper arc segment, it suppresses significant displacement of the racket frame without interfering with its free vibration. Furthermore, the clamping mechanism securely holds the racket handle, ensuring that the racket body does not loosen during impact. The overall structure works synergistically, significantly improving the consistency of testing status and the reliability of data. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the impact resistance testing support platform for aluminum tennis rackets according to the present invention.
[0013] Figure 2 This is a schematic diagram of the annular limiting frame support structure of an aluminum tennis racket impact resistance testing support platform according to the present invention.
[0014] Figure 3 This is a top view schematic diagram of the clamping mechanism of an aluminum tennis racket impact resistance testing support platform according to the present invention.
[0015] In the diagram: 1. Base; 2. Column; 21. Sliding sleeve; 22. Guide block; 3. Clamping mechanism; 31. Mounting seat; 32. Left clamping block; 33. Right clamping block; 34. Adjusting screw; 4. Annular limiting frame bracket; 41. Upper arc-shaped section; 411. Dovetail groove interface; 42. Lower arc-shaped section; 421. L-shaped slot; 43. Lateral connecting arm; 431. Dovetail tenon; 432. Hook part; 5. Adjusting linkage assembly; 51. First adjusting rod; 52. Second adjusting rod; 6. Flexible bonding layer; 7. Fastening screw; 8. Positioning pin. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-3This utility model provides a technical solution: an aluminum tennis racket impact resistance testing support platform, including a base 1, a column 2 on the top of the base 1, the column 2 and the base 1 being connected and fixed by welding, a clamping mechanism 3 for clamping the tennis racket handle is installed on the column 2, and an annular limiting frame bracket 4 is provided above the clamping mechanism 3. The annular limiting frame bracket 4 is a split splicing structure, and the annular limiting frame bracket 4 is connected to the column 2 through symmetrically arranged adjusting connecting rod assemblies 5. The annular limiting frame bracket 4 is spliced from an upper arc segment 41, a lower arc segment 42 and two lateral connecting arms 43, and a flexible bonding layer 6 is provided on the inner side of the upper arc segment 41. This structure firmly fixes the tennis racket handle to the column 2 through the clamping mechanism 3, ensuring that the racket body is vertical. After achieving a stable posture, the height and angle of the annular limiting frame bracket 4 are then adjusted using the adjusting linkage assembly 5 to ensure that the annular limiting frame bracket 4 completely surrounds the racket frame. The frame structure, consisting of the upper arc segment 41, the lower arc segment 42, and the lateral connecting arm 43, maintains a uniform gap with the racket frame. Simultaneously, the flexible bonding layer 6 on the inner side of the upper arc segment 41 provides a flexible limiting boundary without directly contacting the racket frame. When the impact device applies impact force to the racket frame, this structure, through the clamping mechanism 3, securely anchors the handle end, preventing loosening due to vibration. The annular limiting frame bracket 4 forms a spatial constraint around the racket frame, effectively suppressing lateral displacement, local vibration, and torsional deformation of the racket frame at the moment of impact. Adjusting the linkage assembly 5 ensures the annular limiting frame bracket 4... The form-fitting frame bracket 4 maintains its position during dynamic impact. Through the coordinated operation of its components, the overall structure significantly improves the racket frame's posture stability during testing. This solves the problems of uneven stress distribution, inconsistent test conditions, and poor repeatability of test results caused by the racket frame's free suspension and lack of external restraint in existing technologies. Furthermore, this support platform is suitable for conducting lateral or oblique impact tests on aluminum tennis rackets in a vertical orientation. The preferred impact direction is horizontal, acting on the upper part of the racket frame from the front, ensuring the racket frame's posture stability during testing. Two sets of adjusting rod assemblies 5 are symmetrically arranged on the left and right sides of the column 2. Each adjusting rod assembly 5 includes a first adjusting rod 51 and a second adjusting rod 52. One end of the first adjusting rod 51 is hinged to the column 2. The upper part has a sliding sleeve 21 on its outer side. The sliding sleeve 21 is fitted onto the column 2 and radially fixed by a set screw. It can slide up and down along the column 2 and can be locked in position after adjustment. The other end of the first adjusting rod 51 is hinged to the middle of the second adjusting rod 52. One end of the second adjusting rod 52 is hinged to the outer side of the lateral connecting arm 43. The other end of the second adjusting rod 52 has a threaded section. The threaded section passes through the through hole of the guide block 22 fixed on the sliding sleeve 21. The guide block 22 is installed on the side wall of the sliding sleeve 21 by screws and locked by a lock nut. This structure is linked by the hinge of the first adjusting rod 51 and the second adjusting rod 52, which works in conjunction with the up and down movement of the sliding sleeve 21 on the column 2 and the guiding and limiting of the threaded section of the second adjusting rod 52 by the guide block 22.The ring-shaped limiting frame bracket 4 allows for flexible adjustment and reliable locking in height and tilt angle, ensuring accurate adaptation to the frame positions of different tennis racket models and maintaining stability during impact. The bottom surfaces of both ends of the upper arc-shaped segment 41 are provided with dovetail groove interfaces 411, and the top of the lateral connecting arm 43 is provided with a dovetail tenon 431 that matches the dovetail groove interface 411. The dovetail tenon 431 is inserted into the dovetail groove interface 411 and then locked in place by vertically inserted fastening screws 7. This structure achieves rapid positioning and stable connection between the upper arc-shaped segment 41 and the lateral connecting arm 43 through the cooperation of the dovetail groove interface 411 and the dovetail tenon 431. The fastening screws 7 further ensure high connection strength and prevent loosening, effectively maintaining the overall structural stability of the ring-shaped limiting frame bracket 4 and preventing the limiting accuracy from being affected by shaking of the connection points during impact. The flexible adhesive layer 6 is fixed to the inner arc surface of the upper arc-shaped segment 41 by adhesive bonding. The flexible adhesive layer 6 is made of silicone, and its surface follows the arc... The structure features evenly distributed corrugated grooves along its length. This structure, through the flexible bonding layer 6 and its surface corrugated grooves, forms an elastic buffer interface between the upper arc-shaped section 41 and the frame. This absorbs minute vibrations during impact, reduces stress concentration caused by rigid contact, and simultaneously increases frictional damping in the limiting area, effectively suppressing high-frequency vibrations and localized shifts in the frame during testing. The clamping mechanism 3 includes a mounting base 31 fixed to the column 2. A T-shaped groove is laterally formed on the mounting base 31, within which a left clamping block 32 and a right clamping block 33 slide. Adjusting screws 34 are located on the outer sides of both the left and right clamping blocks 32 and 33. These screws 34 are screwed into the threaded holes of the mounting base 31 via a threaded structure. This structure, through the sliding engagement of the T-shaped groove with the left and right clamping blocks 32 and 33, combined with the screwing in and pushing of the adjusting screws 34, achieves bidirectional synchronous clamping of handles of different diameters. The clamping is stable and well-centered, effectively preventing loosening or shifting of the handle during impact and ensuring consistent testing posture.
[0018] Working principle: When using this aluminum tennis racket impact testing support platform, first insert the handle of the aluminum tennis racket to be tested between the left clamping block 32 and the right clamping block 33 of the clamping mechanism 3, and tighten the adjusting screws 34 on both sides so that the left clamping block 32 and the right clamping block 33 slide towards each other in the T-shaped sliding groove of the mounting base 31 and clamp the racket handle, thereby achieving vertical fixation of the racket body. Then, according to the overall height and curvature of the racket frame, move the sliding sleeve 21 up and down along the column 2, and adjust the hinge angle between the first adjusting rod 51 and the second adjusting rod 52, while adjusting the threaded section on the second adjusting rod 52 through the guide block 22. The insertion depth in the hole is adjusted, and the locking nut is tightened to drive the overall lifting and angle deflection of the annular limiting frame bracket 4, so that its surrounding position corresponds to the outer edge of the racket frame. Next, check whether the splicing of the upper arc section 41, the lower arc section 42 and the lateral connecting arm 43 through the dovetail groove interface 411 and the dovetail tenon 431, the L-shaped slot 421 and the hook part 432 is firm, and confirm that the fastening screws 7 and the positioning pins 8 are all locked. Finally, ensure that the flexible bonding layer 6 is located in the corresponding area above the racket frame but does not contact it. After the installation is completed, the impact device is activated to apply impact force to the racket frame, thereby completing a series of tasks.
[0019] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. An aluminum tennis racket impact resistance testing support platform, comprising a base (1), characterized in that: The base (1) has a column (2) on top, and a clamping mechanism (3) for clamping the tennis racket handle is installed on the column (2). An annular limiting frame bracket (4) is provided above the clamping mechanism (3). The annular limiting frame bracket (4) is connected to the column (2) through symmetrically arranged adjusting rod assemblies (5). The annular limiting frame bracket (4) is composed of an upper arc segment (41), a lower arc segment (42) and a lateral connecting arm (43). The inner side of the upper arc segment (41) is provided with a flexible bonding layer (6).
2. The aluminum tennis racket impact resistance testing support platform according to claim 1, characterized in that: The adjusting rod assembly (5) includes a first adjusting rod (51) and a second adjusting rod (52). One end of the first adjusting rod (51) is hinged to the outside of the sliding sleeve (21) provided on the column (2). The other end of the first adjusting rod (51) is hinged to the middle of the second adjusting rod (52). One end of the second adjusting rod (52) is hinged to the outside of the lateral connecting arm (43). The other end of the second adjusting rod (52) is provided with a threaded section. The threaded section passes through the through hole of the guide block (22) fixed on the sliding sleeve (21) and is locked and fixed by a locking nut.
3. The aluminum tennis racket impact resistance testing support platform according to claim 1, characterized in that: The bottom surfaces of both ends of the upper arc segment (41) are provided with dovetail groove interfaces (411), and the top of the lateral connecting arm (43) is provided with a dovetail tenon (431) that matches the dovetail groove interface (411). After the dovetail tenon (431) is inserted into the dovetail groove interface (411), it is locked and fixed by a vertically inserted fastening screw (7).
4. The aluminum tennis racket impact resistance testing support platform according to claim 1, characterized in that: The lower arc segment (42) has L-shaped slots (421) on both outer sides. The bottom end of the lateral connecting arm (43) has a hook part (432) that engages with the L-shaped slot (421). After the hook part (432) is engaged in the L-shaped slot (421), it is axially locked by a positioning pin (8) that passes laterally through the side wall of the lateral connecting arm (43).
5. The aluminum tennis racket impact resistance testing support platform according to claim 1, characterized in that: The flexible bonding layer (6) is fixed to the inner arc surface of the upper arc segment (41) by adhesive bonding, and the flexible bonding layer (6) is made of silicone, with corrugated grooves evenly distributed on its surface along the arc length direction.
6. The aluminum tennis racket impact resistance testing support platform according to claim 1, characterized in that: The clamping mechanism (3) includes a mounting base (31) fixed on the column (2). A T-shaped groove is provided on the mounting base (31) in the horizontal direction. A left clamping block (32) and a right clamping block (33) are slidably fitted in the T-shaped groove. An adjusting screw (34) is provided on the outer side of both the left clamping block (32) and the right clamping block (33). The adjusting screw (34) is screwed into the threaded hole of the mounting base (31) through a threaded structure.