Dumbbell base with locking structure and dumbbell

Abstract

The utility model belongs to fitness equipment technical field discloses a dumbbell base with locking structure and matched dumbbell, the base body with two containing cavities, the containing cavity bottom is provided with handle locking seat, handle locking seat has the through -hole of horizontal penetration two opposite surfaces, its axis is parallel with dumbbell placement direction, the through -hole inlay has elastic positioning part, and the both ends of elastic positioning part all exceed the end face of the corresponding side of through -hole, the containing cavity inboard wall forms the positioning hole corresponding with the positioning part, handle rotates, carries out the piece, and drives the locking disc rotation simultaneously, the convex surface applies extrusion pressure to the positioning part, makes its one end insert the positioning hole, and is fixed with base body. The utility model's fixed on handle has the concave -convex surface locking disc rotates along with handle, and is close to or away from elastic positioning part, in the close state, the piece is not hung steady, and the dumbbell cannot be taken down alone, improves the security, in the away state, the piece is hung steady, and the dumbbell can be taken down and moves.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a dumbbell structure, especially a dumbbell base and dumbbell with a locking structure. Background Technology

[0002] Traditional dumbbell bases often use an open groove design, allowing dumbbells to be placed directly without a locking function, posing a risk of them rolling or falling off. Some dumbbell bases have a locking grip structure that uses rotation to hang the weights; however, this can lead to unstable weights, causing them to fall off under external force when the dumbbell is picked up, creating a hazard. Utility Model Content

[0003] To solve the above technical problems, a dumbbell base with a locking structure is provided. By setting a locking disc on the handle, the locking disc controls the elastic positioning part to be fixed or disengaged from the base body during the rotation of the handle, thereby controlling the stability of the hanging plate and avoiding the risk of the hanging plate falling off.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dumbbell, comprising a handle and a hanging plate assembled on the handle.

[0005] A locking disc is fixedly mounted on the handle, and one side of the locking disc has a concave-convex surface.

[0006] The base body has a handle placed on it; the handle rotates to activate the hanging plate; the base body has a locking structure that engages with the locking disc.

[0007] As the handle rotates, during the initial stage before the hanging plate is securely engaged, the convex surface of the locking disc contacts the locking structure and cannot detach from the base body; during the stage when the hanging plate is securely engaged, the concave surface of the locking disc aligns with the locking structure and can detach from the base body.

[0008] Preferably, the uneven surface is a wavy surface arranged circumferentially along the surface of the locking disc.

[0009] This utility model also provides a dumbbell base with a locking structure for use with the aforementioned dumbbells. It includes a base body with two accommodating cavities. A grip locking seat is provided at the bottom of each cavity. The grip locking seat has a through hole that horizontally penetrates both opposing surfaces, with its axis parallel to the dumbbell placement direction. An elastic positioning part is embedded within the through hole, with both ends of the elastic positioning part extending beyond the corresponding end face of the through hole. A positioning hole corresponding to the positioning part is formed on the inner sidewall of the accommodating cavity. When the grip is rotated, a plate is hung, simultaneously causing the locking disc to rotate. The convex surface applies a pressing force to the positioning part, causing one end to insert into the positioning hole and fix it to the base body.

[0010] Furthermore, the elastic positioning part includes a pin and a spring disposed on its rod. One end of the pin near the positioning hole is a tapered guide head, and the other end is a clamping end head. One end of the spring is fixedly connected to the clamping end head, and the other end is fixed to the end face of the tapered guide head.

[0011] Furthermore, without external force acting on the spring, the distance that the clamping end moves axially in the direction of the through hole is greater than the distance between the tapered guide head and the inner wall of the deepest part of the positioning hole, ensuring that the pin is inserted into the positioning hole.

[0012] Furthermore, the spring and the pin are coaxially arranged.

[0013] Furthermore, the positioning hole is a blind hole, located on the side close to the elastic positioning part.

[0014] Furthermore, the outer surface of the clamping end is a smooth arc surface, which makes smooth contact with the surface of the dumbbell counterweight.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The locking disc with concave and convex surfaces fixed to the handle of this invention rotates with the handle, pressing against or moving away from the pin. When pressed, the spring is compressed, the hanging plate is not securely attached, and the dumbbell cannot be removed alone, thus improving safety. When moved away, the spring rebounds, the hanging plate is securely attached, and the dumbbell can be removed for exercise.

[0017] This utility model has the advantages of convenient operation and reliable structure through the cooperation between the elastic positioning part embedded in the grip locking seat and the positioning hole.

[0018] The limiting component of the base of this utility model is built into the base body, without any exposed complex mechanism, making the overall structure compact. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention (including the dumbbell);

[0020] Figure 2a This is a cross-sectional structural diagram of the present invention;

[0021] Figure 2b for Figure 2a A magnified view of a portion of the image;

[0022] Figure 3a This is a first-view structural schematic diagram of the locking disc of this utility model;

[0023] Figure 3b This is a second-view structural schematic diagram of the locking disc of this utility model;

[0024] Figure 4aThis is a schematic diagram of the assembly of the locking disc and the handle of this utility model (including the weight indicator disc).

[0025] Figure 4b This utility model provides an assembly diagram of the locking disc and the handle (excluding the weight indicator disc).

[0026] Figure 5 This is a partially exploded schematic diagram of the base body and the adjustable elastic pin of this utility model.

[0027] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0028] Reference numerals: 100-base body, 110-accommodating cavity, 111-positioning hole, 200-grip locking seat, 210-through hole, 300-pin, 310-conical guide head, 320-tightening end, 400-spring, 500-grip, 600-locking disc. Detailed Implementation

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0030] like Figures 1 to 6As shown in the figure, this application discloses a dumbbell base and dumbbell with a locking structure, which together achieve stable hanging plates and prevent them from easily falling off. It includes a base body 100, which has two accommodating cavities 110 for accommodating counterweights. A grip locking seat 200 is provided at the bottom of the accommodating cavity 110, and the grip locking seat 200 is connected to the dumbbell grip 500. A through hole 210 is formed on the grip locking seat 200, which extends horizontally through the two symmetrical surfaces. Its axis is consistent with the direction in which the dumbbell is placed. A pin 300 is embedded in the through hole 210. Both ends of the pin 300 extend to their respective distal ends. An elastic component is provided on the outer periphery of the pin 300, which causes the pin 300 to rebound under pressure. Correspondingly, a positioning hole 111 is formed on the inner side wall of the receiving cavity 110. The positioning hole 111 is a blind hole and is located on the side close to the pin 300. A locking disc 600 is fixedly fitted on the outer periphery of the grip 500. The locking disc 600 has a concave and convex surface, which faces the pin 300. The grip 500 rotates to attach the hanging plate. During the rotation process, without a stable hanging plate, the convex surface remains in contact with the corresponding surface of the pin 300, applying pressure to one end of the pin 300. Under the action of the elastic component, the pin 300 inserts into the corresponding positioning hole 111, fixing the dumbbell to the base body 100, preventing it from being picked up independently. When the hanging plate is stably attached, the concave surface of the locking disc 600 rotates to the corresponding position on the surface of the pin 300, disengaging the dumbbell from the base body 100, allowing it to be picked up, and ensuring stable attachment of the hanging plate. This structure offers advantages such as anti-drop, convenient operation, and reliable structure.

[0031] Preferably, the surface of the locking disc 600 is a wavy surface, which is arc-shaped to improve the smoothness of rotation.

[0032] Furthermore, one end of the pin 300 near the positioning hole 111 is a tapered guide head 310, and the other end is a clamping end head 320. A spring 400 is provided on the outer periphery of the pin 300. One end of the spring 400 is fixedly connected to the clamping end head 320, and the other end is fixed to the end face of the tapered guide head 310.

[0033] When the locking disc 600 rotates and presses against the end 320 as the handle 500 rotates, the tapered guide head 310 gradually enters the deepest inner wall of the positioning hole 111. The spring 400 is in a compressed state, the dumbbell is fixed to the base body 100, and the hanging plate is not fully and securely attached.

[0034] When the locking disc 600 rotates and disengages from the clamping end 320 along with the grip 500, the spring 400 returns to its original position, and the hanging plate is securely attached. The distance that the clamping end 320 moves axially towards the through hole 210 is greater than the distance between the tapered guide head 310 and the deepest inner wall of the positioning hole 111, ensuring that the pin 300 can be inserted into the positioning hole 111, preventing the dumbbell from being removed from the base body 100 when the hanging plate is not securely attached.

[0035] The outer surface of the clamping end 320 is a smooth arc surface, which makes smooth contact with the surface of the locking disc 600 and will not damage the surface of the locking disc 600.

[0036] The working principle of this utility model is as follows:

[0037] Place the dumbbells: The dumbbell weights fall into the receiving cavity 110, and the grip 500 position corresponds to the grip locking seat 200 position;

[0038] Automatic locking: During the process of rotating the handle 500 to attach the hanging plate, the peaks of the wave surface of the locking disc 600 gradually approach the tightening end 320, applying pressure to it and pushing the tapered guide head 310 to move towards the positioning hole 111, and the spring 400 is gradually compressed; the pin is fixed to the base body 100, and the dumbbell cannot be removed.

[0039] Automatic unlocking: Rotate the grip 500, and the trough of the locking disc 600 gradually approaches the top tightening end 320, indicating that the hanging plate is stable. When the trough corresponds to the top tightening end 320, the spring 400 returns to its original position, and the dumbbell can be removed.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dumbbell, comprising a handle and a plate mounted on the handle, characterized in that, A locking disc is fixedly mounted on the handle, and one side of the locking disc has a concave-convex surface. The base body has a handle placed on it; the handle rotates to activate the hanging plate; the base body has a locking structure that engages with the locking disc. As the handle rotates, before the hanging piece is firmly engaged, the convex surface of the locking disc contacts the locking structure and cannot detach from the base body. During the stabilization phase of the hanging plate, the concave surface of the locking disc corresponds to the locking structure, allowing it to detach from the base body.

2. A dumbbell as described in claim 1, characterized in that, The uneven surface is a wavy surface arranged circumferentially along the surface of the locking disc.

3. A dumbbell base with a locking mechanism, characterized in that, For use with the dumbbell as described in claim 1 or 2, the device includes a base body with two accommodating cavities. A grip locking seat is provided at the bottom of each accommodating cavity. The grip locking seat has a through hole that horizontally penetrates two opposing surfaces, with its axis parallel to the dumbbell placement direction. An elastic positioning part is embedded in the through hole, with both ends of the elastic positioning part extending beyond the end face of the corresponding side of the through hole. A positioning hole corresponding to the elastic positioning part is formed on the inner side wall of the accommodating cavity. When the grip is rotated, the plate is hung, which simultaneously drives the locking disc to rotate. The convex surface applies a pressing force to the positioning part, causing one end of the plate to insert into the positioning hole and be fixed to the base body.

4. The dumbbell base with a locking structure as described in claim 3, characterized in that, The elastic positioning part includes a pin and a spring disposed on its rod. One end of the pin near the positioning hole is a tapered guide head, and the other end is a clamping end head. One end of the spring is fixedly connected to the clamping end head, and the other end is fixed to the end face of the tapered guide head.

5. The dumbbell base with a locking structure as described in claim 4, characterized in that, Without external force, the clamping end moves axially in the direction of the through hole a distance greater than the distance between the tapered guide head and the inner wall of the deepest part of the positioning hole, ensuring that the pin is inserted into the positioning hole.

6. The dumbbell base with a locking structure as described in claim 4, characterized in that, The spring is coaxially arranged with the positioning part.

7. The dumbbell base with a locking structure as described in claim 4, characterized in that, The positioning hole is a blind hole, and it is located on the side near the positioning part.

8. The dumbbell base with a locking structure as described in claim 4, characterized in that, The outer surface of the clamping end is a smooth arc surface, which makes smooth contact with the surface of the dumbbell counterweight.

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