Dumbbell counterweight structure with safety lock catch
By designing a safety locking structure on the dumbbells, and using springs and fixing components to prevent the counterweights from loosening, the problem of loosening caused by dumbbell plate collisions is solved, achieving higher safety and stability.
Patent Information
- Application Number
- CN202423283692.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During use, the adjacent dumbbell plates are prone to colliding and loosening, and under the influence of inertia, they may loosen further and cause the counterweight to fall off, affecting safety.
The dumbbell counterweight structure with a safety lock uses the elastic force of the first spring to move the limiting block outward, so that the connecting ring is fixed to another counterweight. The combination design of the fixing ring and the fixing plate prevents the counterweight from loosening and falling off.
It effectively prevents the counterweights from loosening and falling off, improves the safety and stability of the dumbbell, and enhances the fixation effect.
Smart Images
Figure CN223861219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dumbbell counterweight technology, and in particular to a dumbbell counterweight structure with a safety lock. Background Technology
[0002] Dumbbells are auxiliary equipment used in weightlifting and fitness exercises to enhance muscle strength. They are named dumbbells because they are silent during use. Their purpose is for muscle strength training and compound muscle movement exercises. Patients with low muscle strength due to paralysis, pain, or prolonged inactivity can use dumbbells to perform active resistance exercises and train muscle strength.
[0003] A search revealed a dumbbell with announcement number CN216022932U, comprising a dumbbell bar and dumbbell heads. Two dumbbell heads are respectively fixedly connected to both ends of the dumbbell bar. The surface of each dumbbell head is integrally provided with a concave portion. By providing the concave portion on the outer surface of the dumbbell head, weight markings and customized rubber patches can be installed in the concave portion, giving the product both weight identification and personalization functions. Furthermore, an anti-slip part is provided in the middle of the dumbbell bar, preventing the dumbbell from slipping due to sweaty palms, thus improving safety. The spaced design of the anti-slip part eliminates the need for users to distinguish the grip direction when using the dumbbell, and the raised structure enhances the aesthetics of the dumbbell and improves the user experience.
[0004] Based on the aforementioned patent, by setting a concave portion on the outer surface of the dumbbell head, weight markings and customized rubber patches can be installed in the concave portion, giving the product both weight identification and personalization functions. Furthermore, an anti-slip part is set in the middle of the dumbbell bar, preventing the dumbbell from slipping due to sweaty hands, thus improving safety. The spaced design of the anti-slip part eliminates the need for users to distinguish the grip direction, and the raised structure enhances the aesthetics of the dumbbell and improves the user experience. However, during use, adjacent dumbbell plates often collide, easily causing slight loosening. When slight loosening occurs, the dumbbell plates will move relative to the dumbbell bar and rotate on the dumbbell bar due to inertia during use. This rotation will further loosen the locking block, gradually increasing the degree of loosening.
[0005] In response to this technical problem, this application proposes a dumbbell counterweight structure with a safety lock. Utility Model Content
[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology by proposing a dumbbell counterweight structure with a safety lock. The first spring's elastic force drives the limiting block to move outward, fixing the connecting ring to another counterweight block, preventing collisions between adjacent counterweight blocks and reducing the occurrence of counterweight blocks falling off.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A dumbbell counterweight structure with a safety lock includes a dumbbell bar, a handle fixedly connected to the middle of the outer wall of the dumbbell bar, baffles fixedly connected to both sides of the outer wall of the dumbbell bar, multiple counterweight blocks provided on the outer wall of the dumbbell bar, a connecting ring fixedly connected to one end of the inner side of each counterweight block, limit components provided on both sides of the inner wall of the connecting ring, ejection components provided on both sides of the inner wall of the rear end of the connecting ring, threaded grooves provided on the outer walls of the left and right ends of the dumbbell bar, and fixing rings threadedly connected to the outer walls of the left and right ends of the dumbbell bar, with fixing components provided on both sides of the outer walls of the fixing rings.
[0009] Furthermore, the limiting component includes limiting blocks that are slidably connected to both sides of the inner wall of the connecting ring, and the limiting blocks are connected to the inner wall of the connecting ring by a first spring.
[0010] Furthermore, one end of the first spring is connected to the limiting block, and the other end of the first spring is connected to the inner wall of the connecting ring.
[0011] Furthermore, the ejection assembly includes push plates slidably connected to both sides of the inner wall at the rear end of the connecting ring, and push rods are fixedly connected to both sides of the inner wall of the push plates. The push plates are connected to the inner wall of the counterweight block by a second spring.
[0012] Furthermore, one end of the second spring is connected to the press plate, and the other end of the second spring is connected to the inner wall of the counterweight.
[0013] Furthermore, the outer end of the limiting block corresponds to the inner end of the adjacent top rod.
[0014] Furthermore, the fixing assembly includes connecting plates fixedly connected to both sides of the outer wall of the fixing ring, threaded rods threadedly connected to the outer side of the inner wall of the connecting plates, knobs fixedly connected to one end of each threaded rod, and fixing plates rotatably connected to one end of each threaded rod.
[0015] Furthermore, the outer wall of the grip is provided with anti-slip texture.
[0016] This utility model has the following beneficial effects:
[0017] 1. In this utility model, the elastic force of the first spring drives the limiting block to move outward, so that the connecting ring is fixed with another counterweight block, preventing the adjacent counterweight blocks from colliding and causing loosening, and reducing the occurrence of counterweight blocks falling off.
[0018] 2. In this utility model, the center of the counterweight is fixed by a fixing ring, and the two sides of the counterweight are then fixed by a fixing plate, which further improves the safety of the dumbbell. Attached Figure Description
[0019] Figure 1 This is a perspective view of the dumbbell counterweight structure with a safety lock proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the counterweight block in the dumbbell counterweight structure with a safety lock proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the limiting block in the dumbbell counterweight structure with a safety lock proposed in this utility model;
[0022] Figure 4 This is a schematic diagram of the top rod in the dumbbell counterweight structure with a safety lock proposed in this utility model;
[0023] Figure 5 This is a schematic diagram of the fixing plate in the dumbbell counterweight structure with a safety lock proposed in this utility model.
[0024] Legend:
[0025] 1. Dumbbell bar; 2. Handle; 3. Baffle; 4. Counterweight; 5. Connecting ring; 6. Limiting block; 7. First spring; 8. Press plate; 9. Top rod; 10. Second spring; 11. Threaded groove; 12. Fixing ring; 13. Connecting plate; 14. Threaded rod; 15. Knob; 16. Fixing plate. Detailed Implementation
[0026] 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.
[0027] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a dumbbell counterweight structure with a safety lock, including a dumbbell bar 1, a handle 2 fixedly connected to the middle of the outer wall of the dumbbell bar 1, the outer wall of the handle 2 being provided with anti-slip texture, baffles 3 fixedly connected to both sides of the outer wall of the dumbbell bar 1, a plurality of counterweight blocks 4 provided on the outer wall of the dumbbell bar 1, a connecting ring 5 fixedly connected to one end of the inner side of each counterweight block 4, a limiting block 6 slidably connected to both sides of the inner wall of the connecting ring 5, the limiting block 6 and the inner wall of the connecting ring 5 being connected by a first spring 7, one end of the first spring 7 being connected to the limiting block 6, the other end of the first spring 7 being connected to the inner wall of the connecting ring 5, a push plate 8 slidably connected to both sides of the inner wall of the rear end of the connecting ring 5, a top rod 9 fixedly connected to both sides of the inner wall of the push plate 8, the push plate 8 and the inner wall of the counterweight block 4 being connected by a second spring 10, one end of the second spring 10 being connected to the push plate 8, the other end of the second spring 10 being connected to the inner wall of the counterweight block 4, and the outer end of the limiting block 6 corresponding to the inner end of the adjacent top rod 9;
[0028] Specifically, when the weight of the counterweight 4 is increased, the first spring 7 causes the limiting block 6 to move outward, thereby fixing the limiting block 6 to another counterweight 4 and preventing collisions between adjacent counterweights 4. When the weight is reduced, pressing the push plates 8 on both sides causes the top rod 9 to move inward, which in turn causes the limiting block 6 to move inward, releasing the fixed relationship between the limiting block 6 and the other counterweight 4. The second spring 10 also causes the push plates 8 to reset.
[0029] Reference Figure 1 , Figure 2 and Figure 5 The dumbbell bar 1 has threaded grooves 11 on the outer walls of both ends. The outer walls of both ends of the dumbbell bar 1 are threaded with fixing rings 12. The outer walls of the fixing rings 12 are fixedly connected to the connecting plates 13 on both sides. The inner walls of the connecting plates 13 are threaded with threaded rods 14 on the outer side. The outer end of the threaded rods 14 is fixedly connected with a knob 15. The inner end of the threaded rods 14 is rotatably connected with a fixing plate 16.
[0030] Specifically, by rotating the fixing ring 12 on the dumbbell bar 1, multiple counterweights 4 can be fixed to the dumbbell bar 1. Then, by rotating the knobs 15 on both sides, the threaded rod 14 is driven to rotate, which in turn drives the fixing plate 16 to rotate inward, thus providing multiple fixation on both sides of the counterweights 4 and further improving the fixing effect.
[0031] Working principle: First, when adding weight and installing counterweight 4, the elastic force of the first spring 7 will activate, pushing the limiting block 6 outward to ensure a secure connection between the limiting block 6 and another counterweight 4, preventing collisions between adjacent counterweight 4. When reducing weight, simply press the push plates 8 on both sides, and the push rod 9 will move inward, causing the limiting block 6 to move inward, thus releasing the fixed state between the limiting block 6 and the counterweight 4. Furthermore, the elastic force of the second spring 10 will help the push plates 8 automatically reset. Second, by screwing the fixing ring 12 into the dumbbell bar 1 and rotating the thread, multiple counterweights 4 can be securely fixed to the dumbbell bar 1. Subsequently, by rotating the knobs 15 on both sides, the threaded rod 14 can be driven to rotate, thereby causing the fixing plate 16 to rotate inward, providing multiple locks on both sides of the counterweight 4, significantly enhancing the fixing effect.
[0032] 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 dumbbell counterweight structure with a safety lock, characterized in that: The dumbbell bar (1) includes a handle (2) fixedly connected to the middle of the outer wall of the dumbbell bar (1), baffles (3) fixedly connected to both sides of the outer wall of the dumbbell bar (1), multiple counterweights (4) provided on the outer wall of the dumbbell bar (1), a connecting ring (5) fixedly connected to one end of the inner side of each counterweight (4), limit components provided on both sides of the inner wall of the connecting ring (5), ejection components provided on both sides of the inner wall of the rear end of the connecting ring (5), threaded grooves (11) provided on the outer walls of the left and right ends of the dumbbell bar (1), and fixing rings (12) threadedly connected to the outer walls of the left and right ends of the dumbbell bar (1), with fixing components provided on both sides of the outer wall of the fixing rings (12).
2. The dumbbell counterweight structure with a safety lock according to claim 1, characterized in that: The limiting component includes limiting blocks (6) that are slidably connected to both sides of the inner wall of the connecting ring (5), and the limiting blocks (6) are connected to the inner wall of the connecting ring (5) by a first spring (7).
3. The dumbbell counterweight structure with a safety lock according to claim 2, characterized in that: One end of the first spring (7) is connected to the limiting block (6), and the other end of the first spring (7) is connected to the inner wall of the connecting ring (5).
4. The dumbbell counterweight structure with a safety lock according to claim 2, characterized in that: The ejection assembly includes a push plate (8) slidably connected to both sides of the inner wall of the rear end of the connecting ring (5). A push rod (9) is fixedly connected to both sides of the inner wall of the push plate (8). The push plate (8) is connected to the inner wall of the counterweight (4) by a second spring (10).
5. The dumbbell counterweight structure with a safety lock according to claim 4, characterized in that: One end of the second spring (10) is connected to the press plate (8), and the other end of the second spring (10) is connected to the inner wall of the counterweight (4).
6. The dumbbell counterweight structure with a safety lock according to claim 4, characterized in that: The outer end of the limiting block (6) corresponds to the inner end of the adjacent top rod (9).
7. The dumbbell counterweight structure with a safety lock according to claim 1, characterized in that: The fixing assembly includes connecting plates (13) fixedly connected to both sides of the outer wall of the fixing ring (12), threaded rods (14) threadedly connected to the outer side of the inner wall of the connecting plate (13), knobs (15) fixedly connected to the outer end of each threaded rod (14), and fixing plates (16) rotatably connected to the inner end of each threaded rod (14).
8. The dumbbell counterweight structure with a safety lock according to claim 1, characterized in that: The outer wall of the grip (2) is provided with anti-slip texture.