Replaceable quickly-inserted dumbbell

Abstract

The utility model discloses a replaceable quick-plug type dumbbell which comprises a dumbbell handle, connecting grooves are inwards formed in the two ends of the dumbbell handle respectively, dumbbell balance weight heads are inserted into the connecting grooves respectively, through installation spaces are vertically formed in the dumbbell balance weight heads, pressing parts are connected into the installation spaces in a sliding mode, and the pressing parts are connected with the dumbbell handle in a sliding mode. The pressing part is provided with a first end and a second end which are opposite to each other, the dumbbell counterweight head and the first end face of the pressing part face the connecting groove, the side edge of the first end of the pressing part is transversely and elastically connected with at least one clamping bead, and a bead groove matched with the clamping bead is formed in the inner wall of the connecting groove in the circumferential direction. After the pressing part slides in place in the dumbbell counterweight head, the clamping bead is clamped in the bead groove, and a withdrawing mechanism for withdrawing the clamping bead from the bead groove is mounted at the first end of the pressing part.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to a replaceable quick-connect dumbbell. Background Technology

[0002] Currently, most dumbbells have a single fixed weight and cannot be disassembled. This makes it impossible to save transport space by disassembling parts during transportation. Similarly, it is very inconvenient for trainees to have dumbbells of different weights. Utility Model Content

[0003] The purpose of this invention is to provide a replaceable quick-release dumbbell that allows for quick disassembly of the dumbbell handle to facilitate the replacement of different weights.

[0004] According to this utility model, a replaceable quick-connect dumbbell includes a dumbbell handle. Connecting grooves are respectively formed at both ends of the dumbbell handle, and dumbbell weights are inserted into the connecting grooves. A through-mounting space is vertically formed within each dumbbell weight, and a pressing component is slidably connected within the mounting space. The pressing component has a first end and a second end facing each other. The first end of the dumbbell weight and the pressing component faces the connecting groove. At least one locking bead is laterally elastically connected to the side of the first end of the pressing component. A bead groove adapted to the locking bead is circumferentially formed on the inner wall of the connecting groove. After the pressing component slides into position within the dumbbell weight, the locking bead engages with the bead groove. An exit mechanism is installed at the first end of the pressing component to remove the locking bead from the bead groove.

[0005] In actual use, by pressing the pressing component inward, the pressing component slides towards the dumbbell handle. After the locking bead is squeezed, it is locked into the bead groove. When it is necessary to remove the dumbbell weight head, simply use the withdrawal mechanism to remove the pressing component from the connecting groove.

[0006] Furthermore, the pressing component includes a vertical part slidably connected to the installation space and an inclined part coaxially connected to the end of the vertical part, wherein the vertical part and the inclined part are integrally formed.

[0007] Furthermore, the withdrawal mechanism includes a first extension tube extending from the first end of the pressing component and a second extension tube extending from the first end of the dumbbell counterweight head. The sidewall of the first extension tube is inclined outward and forms an acute angle with its own axis. The inner wall of the first extension tube is adapted to the outer wall of the second extension tube. A through hole adapted to the locking bead is opened on the sidewall of the first extension tube. The locking bead is laterally elastically connected in the through hole, and a portion of the locking bead protrudes outside the through hole. A spring is circumferentially sleeved on the dumbbell counterweight head. The elastic deformation direction of the spring is longitudinal. After the pressing component slides into place in the dumbbell counterweight head, a portion of the locking bead is engaged in the bead groove, a portion is located in the through hole, and a portion protrudes in the second extension tube. The sidewall of the first extension tube is in close contact with the locking bead. When the pressing component is not pressed, the spring is in an undeformed state. After the locking bead is engaged in the bead groove, the spring is in a deformed state.

[0008] In actual use, pressing the pressing component causes the vertical and inclined sections to slide inwards slowly. Because the inclined section is trapezoidal and its sides are tilted, the spring deforms during the downward sliding process. The outer wall of the inclined section slowly squeezes the locking bead until it is squeezed into the bead groove. Due to the spring force, the pressing component is subjected to an upward vertical pull, so the locking bead is fixed by the combined pressure from the bead groove and the inclined section. When it is necessary to remove the dumbbell weight head, simply continue pressing the pressing component downwards. Since the diameter of the pressing component is smaller than that of the first extension tube, the side wall of the inclined section loses its pressure on the locking bead. The locking bead can then exit the bead groove and return to the through hole through the elastic connection between it and the through hole. Then the dumbbell weight head can be pulled out.

[0009] Furthermore, a pressing pad is fitted onto the second end of the pressing component.

[0010] Furthermore, a groove is formed inward at the second end of the dumbbell weight head, and the spring is longitudinally connected between the pressing pad and the groove.

[0011] Furthermore, the acute angle is between 6 and 12°. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the replaceable quick-connect dumbbell according to an embodiment of the present invention;

[0013] Figure 2 This is a cross-sectional view of the replaceable quick-connect dumbbell described in an embodiment of the present invention.

[0014] In the diagram, 1-dumbbell handle; 2-connecting groove; 3-dumbbell counterweight head; 4-pressing component; 41-vertical part; 42-sloping part; 5-locking bead; 6-bead groove; 7-first extension tube; 8-through hole; 9-spring; 10-pressing pad; 11-groove. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0016] Combination Figure 1 This invention discloses a replaceable quick-connect dumbbell, including a dumbbell handle 1. Connecting grooves 2 are respectively formed at both ends of the dumbbell handle 1, and dumbbell weight heads 3 are inserted into the connecting grooves 2. A through mounting space is vertically formed within the dumbbell weight head 3, and a pressing component 4 is slidably connected within the mounting space. The pressing component 4 has a first end and a second end facing each other. The first ends of the dumbbell weight head 3 and the pressing component 4 face the connecting grooves 2. At least one locking bead 5 is laterally elastically connected to the side of the first end of the pressing component 4. A bead groove 6, adapted to the locking bead 5, is provided circumferentially on the inner wall of the connecting groove 2. After the pressing component 4 slides into position within the dumbbell weight head 3, the locking bead 5 is engaged in the bead groove 6. An exit mechanism is installed at the first end of the pressing component 4 to remove the locking bead 5 from the bead groove 6.

[0017] In actual use, by pressing the pressing part 4 inward, the pressing part 4 slides towards the dumbbell handle 1, and the locking bead 5 is squeezed until the locking bead 5 is locked into the bead groove 6. When it is necessary to pull out the dumbbell counterweight head 3, simply use the withdrawal mechanism to remove the pressing part 4 from the connecting groove 2.

[0018] The pressing component 4 includes a vertical part 41 that is slidably connected to the installation space and an inclined part 42 that is coaxially connected to the end of the vertical part 41. The vertical part 41 and the inclined part 42 are integrally formed.

[0019] The withdrawal mechanism includes a first extension tube 7 extending from the first end of the dumbbell counterweight head 3. The sidewall of the first extension tube 7 is inclined outward at an acute angle to its own axis. The vertical part 41 and the inclined part 42 can slide inside the first extension tube 7. The inclined part 42 is trapezoidal in shape and is adapted to the shape of the inner wall of the first extension tube 7. A through hole 8 adapted to the locking bead 5 is provided on the sidewall of the first extension tube 7. The locking bead 5 is laterally elastically connected to the through hole 8. The locking bead 5 is partially... Protruding from the through hole 8, the dumbbell counterweight head 3 is circumferentially fitted with a spring 9. The elastic deformation direction of the spring 9 is longitudinal. After the pressing component 4 slides into the dumbbell counterweight head 3, the locking bead 5 is partially locked in the bead groove 6, partially located in the through hole 8, and partially exposed in the first extension tube 7. The side wall of the inclined part 42 is in close contact with the locking bead 5. When the pressing component 4 is not pressed, the spring 9 is in an undeformed state. After the locking bead 5 is locked in the bead groove 6, the spring 9 is in a deformed state.

[0020] In actual use, pressing the pressing component 4 causes the vertical part 41 and the inclined part 42 to slide inward slowly. Since the inclined part 42 is trapezoidal, meaning it is columnar with a trapezoidal longitudinal section (i.e., the diameter of the upper base is smaller than the lower base and its sides are inclined), the spring 9 deforms during downward sliding. The outer wall of the inclined part 42 slowly squeezes the locking bead 5 until it is squeezed into the bead groove 6. Due to the elasticity of the spring 9, the pressing component 4 is subjected to an upward vertical force, so the locking bead 5 is fixed by the combined pressure of the bead groove 6 and the inclined part 42. When it is necessary to remove the dumbbell weight head 3, simply continue pressing the pressing component 4 downward. Since the diameter of the vertical part 41 is smaller than the first extension tube 7, the side wall of the inclined part 42 loses its pressure on the locking bead 5. The locking bead 5 can then exit the bead groove 6 and return to the through hole 8 through the elastic connection between it and the through hole 8. Then the dumbbell weight head 3 can be pulled out.

[0021] A pressing pad 10 is fitted onto the second end of the pressing component 4.

[0022] The second end of the dumbbell weight head 3 has an inwardly formed groove 12, and a spring 9 is longitudinally connected between the pressing pad 10 and the groove 12.

[0023] The acute angle is between 6 and 12 degrees.

[0024] It is worth noting that when the dumbbell weight head 3 is not yet inserted into the connecting groove 2, the locking bead 5 is located in the through hole 8 and partially protrudes outside the through hole 8. When it is necessary to insert it into the connecting groove 2, first press the pressing pad 10, the pressing component 4 is vertically downward, the spring 9 is deformed, and the locking bead 5 is pulled by the pressing component 4 to slide out of the through hole 8. Then, insert the dumbbell weight head 3 straight into the connecting groove 2, release the pressing component 4, the pressing component 4 is restored vertically upward by the rebound force of the spring 9, and the locking bead 5 is also driven back into the through hole 8. Since the side wall of the inclined part 42 is inclined, the inclined surface will have a squeezing force on the locking bead 5, so that the locking bead 5 can be fixed in the bead groove 6.

[0025] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A replaceable quick-connect dumbbell, characterized in that, The device includes a dumbbell handle with inwardly extending connecting grooves at both ends. Dumbbell weights are inserted into these grooves, and each weight has a vertically extending mounting space. A pressing component is slidably connected within this mounting space. The pressing component has a first end and a second end facing each other. The first ends of the dumbbell weights and the pressing component face the connecting grooves. At least one locking bead is laterally elastically connected to the side of the first end of the pressing component. The inner wall of the connecting groove has a bead groove circumferentially arranged to fit the locking bead. After the pressing component slides into position within the dumbbell weights, the locking bead engages with the bead groove. The first end of the pressing component is equipped with a disengagement mechanism to remove the locking bead from the bead groove.

2. The replaceable quick-connect dumbbell according to claim 1, characterized in that, The pressing component includes a vertical part that is slidably connected to the installation space and an inclined part that is coaxially connected to the end of the vertical part. The vertical part and the inclined part are integrally formed.

3. The replaceable quick-connect dumbbell according to claim 2, characterized in that, The withdrawal mechanism includes a first extension tube extending from the first end of the dumbbell counterweight head. The sidewall of the first extension tube is inclined outward at an acute angle to its own axis. The vertical part and the inclined part can slide within the first extension tube. The inclined part is trapezoidal in shape and is adapted to the shape of the inner wall of the first extension tube. A through hole adapted to the locking bead is provided on the sidewall of the first extension tube. The locking bead is laterally elastically connected to the through hole, and part of the locking bead protrudes outside the through hole. A spring is circumferentially sleeved on the dumbbell counterweight head. The elastic deformation direction of the spring is longitudinal. After the pressing component slides into place within the dumbbell counterweight head, part of the locking bead is engaged in the bead groove, part is located in the through hole, and part is protruding from the first extension tube. The sidewall of the inclined part is in close contact with the locking bead. When the pressing component is not pressed, the spring is in an undeformed state. After the locking bead is engaged in the bead groove, the spring is in a deformed state.

4. The replaceable quick-connect dumbbell according to claim 3, characterized in that, The second end of the pressing component is fitted with a pressing pad.

5. The replaceable quick-connect dumbbell according to claim 4, characterized in that, The second end of the dumbbell weight head has an inwardly formed groove, and the spring is longitudinally connected between the pressing pad and the bottom of the groove.

6. The replaceable quick-connect dumbbell according to claim 5, characterized in that, The acute angle is between 6 and 12°.

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