Quick-release counterweight structure, barbell and dumbbell

Abstract

The invention discloses a quick-release counterweight structure, a barbell and a dumbbell, according to the quick-release counterweight structure, connection can be completed only by inserting a counterweight body and rotating and clamping, the quick-release counterweight structure can be disassembled by reversely rotating and pulling out, the problems that a traditional counterweight sheet depends on a fixed lock catch and the assembling and disassembling steps are tedious are solved, and the counterweight adjusting efficiency is greatly improved; the outer diameter of the counterweight body is consistent with the outer diameter of the barbell rod and the dumbbell rod, the defect that the counterweight sheets protrude out of the outer side of the rod body is overcome, the overall structure is regular, and the occupied space is reduced; meanwhile, the risk of colliding with surrounding objects in the storage and use process is reduced, and the fitness equipment is particularly suitable for fitness scenes such as families with limited space.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment, and in particular to a quick-release counterweight structure and barbells and dumbbells. Background Technology

[0002] Currently, most barbells and dumbbells on the market use weight plates and locking buckles, which are cumbersome to assemble and disassemble. Moreover, the weight plates are mostly disc-shaped and protrude from the outside of the barbell bar when in use, taking up a lot of space when storing and storing them. They are also prone to bumping into surrounding items and are not easy to store. For home personal fitness needs, the space occupied by fitness equipment is also an important consideration. Based on this, the present invention designs a detachable weight structure that occupies less space. Summary of the Invention

[0003] This invention provides a quick-release counterweight structure and a barbell and dumbbells, which can solve the problems pointed out in the background art.

[0004] A quick-release counterweight structure, comprising: A counterweight structure comprising at least one counterweight body, the counterweight body having at least a connecting portion and a limiting pin thereon; and The hand-held part has a connecting section for connecting with a counterweight structure, and the connecting section has a receiving groove for accommodating the connecting part. The connecting section is also provided with a slot for connecting and receiving grooves. The slot has a limiting section extending in the circumferential direction of the hand-held part and a relief section extending in the axial direction of the hand-held part. The relief section cooperates with the limiting pin, and the limiting pin can enter the relief section and move to the limiting section to realize the connection between the hand-held part and the counterweight structure.

[0005] Preferably, the outer diameter of the handheld part is the same as the outer diameter of the counterweight; Preferably, the counterweight structure includes end counterweights and at least one intermediate counterweight. The intermediate counterweight has a connecting part and a connecting segment; The end counterweight has a connecting part that cooperates with the connecting section of the intermediate counterweight.

[0006] Preferably, the receiving groove has an elastic element.

[0007] Preferably, the elastic element is fixed in the receiving groove by a locking element.

[0008] Preferably, the elastic element is a spring.

[0009] Preferably, the connecting part has a through hole that cooperates with the limiting pin, the limiting pin is inserted into the through hole and its two ends protrude outside the connecting part, and the connecting section has two slots corresponding to the two ends of the limiting pin.

[0010] Preferably, the handheld part and the counterweight structure are covered or partially covered with a soft rubber layer.

[0011] Preferably, a buckle is provided on the outside of the soft rubber layer, and a tooth is provided on the side of the buckle that is in contact with the soft rubber layer. A groove is provided on the soft rubber layer to cooperate with the tooth.

[0012] A barbell includes a quick-release counterweight structure, wherein the handgrip is a barbell bar, and the barbell bar is a curved bar or a straight bar.

[0013] A dumbbell includes a quick-release counterweight structure, wherein the handgrip is a dumbbell bar.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the quick-release counterweight structure of the present invention only requires two steps to complete the connection: inserting the counterweight and rotating to engage. It can be disassembled by rotating in the opposite direction and pulling out, which solves the problem of traditional counterweight plates relying on fixed locks and having cumbersome assembly and disassembly steps, and greatly improves the efficiency of counterweight adjustment. The outer diameter of the counterweight is designed to be consistent with that of the barbell and dumbbell bars, avoiding the drawback of the counterweight plates protruding from the outside of the bar. The overall structure is neat and reduces the space occupied. At the same time, it reduces the risk of collision with surrounding items during storage and use, making it especially suitable for fitness scenarios with limited space, such as at home. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the quick-release counterweight structure in Example 1; Figure 2 This is a schematic diagram of the quick-release counterweight structure in Example 2; Figure 3 This is a schematic diagram of the quick-release counterweight structure in Example 3; Figure 4 This is a schematic diagram of the dumbbell structure in Example 4; Figure 5 This is a cross-sectional view of the dumbbell in Example 4; Figure 6 This is a schematic diagram of the barbell structure in Example 5.

[0016] Explanation of reference numerals in the attached figures: 1-Handheld part, 2-Middle counterweight, 3-End counterweight, 4-Connecting part, 5-Limiting pin, 6-Through hole, 7-Receiving groove, 8-Slot, 81-Limiting section, 82-Relief section, 9-Elastic element, 10-Locking element, 11-Soft rubber layer, 12-Snap buckle, 13-Fixing block, 14-Pin shaft, 15-Slide groove, 16-Clamping tooth. Detailed Implementation

[0017] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0018] Example 1 like Figures 1 to 2 As shown, an embodiment of the present invention provides a quick-release counterweight structure, which includes a counterweight structure and a handheld part 1. Generally, the two ends of the handheld part 1 are respectively connected to the counterweight structure. The counterweight structure includes at least one counterweight body, which is connected to the handheld part 1. Specifically, the counterweight has at least a connecting part 4, and the connecting part 4 has a limiting pin 5, which may extend radially along the connecting part 4; The handheld part 1 has a connecting section corresponding to the counterweight. The connecting section has a receiving groove 7 for accommodating the connecting part 4. The connecting section also has a slot 8 that communicates with the receiving groove 7. The slot 8 has a limiting section 81 extending in the circumferential direction of the handheld part 1 and a relief section 82 extending in the axial direction of the handheld part 1. The relief section 82 cooperates with the limiting pin 5. The limiting pin 5 can enter the relief section 82 and move to the limiting section 81. That is, the connection between the handheld part 1 and the counterweight structure can be realized by inserting and rotating the counterweight. When disassembly is required, the counterweight structure can be separated from the handheld part 1 by first rotating and then pulling it out, thus achieving quick disassembly. In some other embodiments, the connection between the limiting pin 5 and the connecting part 4 is as follows: the connecting part 4 is provided with a through hole 6 that cooperates with the limiting pin 5, the limiting pin 5 is inserted into the through hole 6 and its two ends protrude outside the connecting part 4, then the connecting section is provided with two slots 8 corresponding to the two ends of the limiting pin 5. In some other embodiments, the receiving groove 7 has an elastic element 9, which is fixed in the receiving groove 7 by a locking element 10. During the process of inserting the connecting part 4 into the receiving groove 7, the connecting part 4 will abut against the elastic element 9 and compress the elastic element 9. After rotating the counterweight structure, the elastic element 9 always applies elastic force to the counterweight structure, making the connection between the counterweight structure and the handheld part 1 tighter and reducing the probability of the counterweight structure falling off due to accidental rotation during use. In addition, the elastic element 9 can be a spring, and the locking element 10 can be a bolt. The groove wall of the receiving groove 7 can be provided with... The spring has a threaded hole that matches it. When the bolt is tightened, the bolt head will press one end of the spring against the groove wall, thereby fixing the spring. In addition, if the receiving groove 7 is deep or the receiving groove 7 is a through groove, the fixing block 13 with a threaded hole can be inserted into the receiving groove 7. At least one limiting hole is provided on the connecting section, and the fixing block 13 is also provided with a corresponding limiting hole. The fixed connection between the fixing block 13 and the connecting section can be achieved by inserting the pin 14 or screwing in the hexagonal flat-end set screw. Then, the elastic element 9 is fixed to the fixing block 13 by the locking member. In addition, the limiting section 81 of the slot 8 can be designed to be inclined, that is, the angle between the limiting section 81 and the yielding section 82 is less than 90°. Then, during disassembly, the counterweight will move axially during the rotation of the counterweight. The reaction force of the spring will further increase the rotation resistance, thereby avoiding the counterweight from falling off due to misoperation. In addition, the outer diameter of the handheld part 1 is similar to the outer diameter of the counterweight. In this embodiment, the two are the same, which can reduce the overall space occupied compared to conventional counterweights.

[0019] Example 2 like Figures 1 to 2 As shown, this embodiment proposes a quick-release counterweight structure based on embodiment one. The counterweight structure of this embodiment includes an end counterweight 3 and at least one intermediate counterweight 2. The end counterweight 3 is the counterweight in embodiment one. The intermediate counterweight 2 is used to connect the end counterweight 3 and the handheld part 1. There can be multiple intermediate counterweights 2. By changing the number of intermediate counterweights 2, the total weight of the fitness equipment can be changed to meet different training loads. This embodiment takes one intermediate counterweight 2 as an example. To achieve connection with the end counterweight 3 and the handheld part 1, the intermediate counterweight 2 has both a connecting part 4 and a connecting section, and the end counterweight 3 has a connecting part 4 that cooperates with the connecting section of the intermediate counterweight 2.

[0020] Example 3 like Figures 1 to 3 As shown, this embodiment proposes a quick-release counterweight structure based on Embodiment 1 or Embodiment 2. To provide a better grip and protect the fitness equipment, the handheld part and the exterior of the counterweight structure are respectively covered or partially covered with a soft rubber layer 11. If the counterweight structure includes a middle counterweight 2 and an end counterweight 3, then the exterior of both is covered with a soft rubber layer 11. In addition, each soft rubber layer 11 is provided with a buckle 12. The side of the buckle 12 that is in contact with the soft rubber layer 11 is provided with a locking tooth 16. The soft rubber layer 11 is provided with a sliding groove 15 that cooperates with the locking tooth 16. The connection between the buckle 12 and the soft rubber layer 11 is completed by sliding insertion. In addition, 3M double-sided tape can be added inside the buckle 12 to prevent it from falling off.

[0021] Example 4 like Figures 1 to 5 As shown, this embodiment proposes a dumbbell, including a quick-release counterweight structure as described in Embodiment 1, Embodiment 2, or Embodiment 3, wherein the handheld part 1 is the dumbbell bar.

[0022] Example 5 like Figures 1 to 6 As shown, this embodiment proposes a barbell, including a quick-release counterweight structure as described in Embodiment 1, Embodiment 2, or Embodiment 3, wherein the hand-held part 1 is the barbell bar, which is a curved bar or a straight bar.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit and essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick release counterweight structure, characterized by, The utility model relates to a weight structure, which comprises at least one weight body having at least a connecting part with a limiting pin; and a hand-held part having a connecting section for connecting with the weight structure, the connecting section being provided with a receiving slot for receiving the connecting part; wherein the connecting section is further provided with a clamping slot communicating with the receiving slot, the clamping slot having a limiting section extending in the circumferential direction of the hand-held part and a giving-in section extending in the axial direction of the hand-held part, the limiting pin being capable of entering the giving-in section and moving to the limiting section to realize the connection between the hand-held part and the weight structure. The outer diameter of the hand-held part is consistent with the outer diameter of the weight body. The weight structure comprises an end weight body and at least one intermediate weight body; wherein the intermediate weight body is provided with a connecting part and a connecting section; and the end weight body is provided with a connecting part cooperating with the connecting section of the intermediate weight body. The receiving slot is provided with an elastic member, which is fixed in the receiving slot by a locking member. The elastic member is a spring.

2. The quick release counterweight structure of claim 1, wherein, The connecting part is provided with a through hole cooperating with the limiting pin, the limiting pin being inserted into the through hole with both ends exposed outside the connecting part; and the connecting section is provided with two clamping slots corresponding to both ends of the limiting pin.

3. The quick release counterweight structure of claim 1, wherein, The hand-held part and the weight structure are externally covered or partially covered with a soft rubber layer. The soft rubber layer is externally provided with a buckle, one side of the buckle being provided with a clamping tooth, and the soft rubber layer being provided with a sliding slot cooperating with the clamping tooth. The hand-held part is a barbell rod, which is a curved rod or a straight rod.

4. The quick release counterweight structure of claim 1, wherein, The hand-held part is a dumbbell rod.

5. The quick release counterweight structure of claim 3, wherein ​ 6. The quick release counterweight structure of claim 1, wherein, ​ 7. The quick release counterweight structure of claim 1, wherein, ​ 8. A quick release counterweight structure as claimed in claim 7, wherein, ​ 9. A barbell comprising the quick release weight structure of any one of claims 1-8, wherein, ​ 10. A dumbbell comprising the quick release weight structure of any one of claims 1-8, wherein, ​

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