Dumbbell placing base with modularized balancing weight loading and unloading mechanism

Abstract

The invention relates to the technical field of dumbbell placement, in particular to a dumbbell placement base with a modular balancing weight loading and unloading mechanism, which comprises a placement base and a dumbbell body, an upper placement groove is formed in the upper surface of the placement base, and a plurality of combined split balancing weights arranged in an annular array are mounted on the inner bottom surface of the upper placement groove. The dumbbell body comprises a middle control rod, lateral assembly plates axially fixed to the two ends of the middle control rod, lateral installation blind holes formed in the outer walls of the lateral assembly plates and elastic limiting mechanisms installed on the lateral assembly plates. According to the dumbbell placing base with the modularized balancing weight loading and unloading mechanism, the upper placing groove is formed in the upper surface of the placing base, the combined split balancing weights are placed and stored through the upper placing groove, the dumbbell body can be placed in a longitudinal placing mode, and storage is quite stable and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of dumbbell placement, in particular to a dumbbell placement base provided with a modular counterweight assembly and disassembly mechanism. Background Art

[0002] Dumbbells are a type of fitness equipment used to assist with exercise, primarily for muscle strength training. Traditional dumbbells are primarily made of cast iron, often coated with rubber for increased safety and durability. However, existing dumbbells are often fixed-body structures, with the weight mechanism fixed at the beginning of production. This makes it impossible to adjust the weights based on user needs. This means users need to prepare multiple sets of dumbbells to meet different training needs, significantly increasing costs.

[0003] Therefore, a series of detachable dumbbells have appeared on the market, which can change the weight of the dumbbell by removing the weight blocks. However, the disassembly and assembly of the dumbbell weights on the market is very troublesome, and there is no dedicated equipment for placing the dumbbells and weight blocks, making storage, use and replacement time-consuming and laborious. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the dumbbell weights of the detachable dumbbells on the market are very troublesome to disassemble and assemble, and are time-consuming and labor-intensive to place, store, use and replace.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a dumbbell placement base with a modular counterweight loading and unloading mechanism, including a placement base and a dumbbell body, the placement base having an upper placement groove on the upper surface, a plurality of modular split counterweights arranged in a circular array installed on the inner bottom surface of the upper placement groove, the dumbbell body including a central control rod, lateral assembly plates axially fixed to both ends of the central control rod, lateral mounting blind holes opened on the outer wall of the lateral assembly plate, and an elastic limiting mechanism installed on the lateral assembly plate.

[0006] A plurality of built-in storage slots for assembling combined split counterweight blocks are provided on the inner bottom surface of the upper placement slot.

[0007] An internal lifting base is installed on the inner bottom surface of the built-in storage slot, and an internal thread control block is provided on the side wall of the internal lifting base. The internal thread of the internal thread control block is equipped with a longitudinal adjustment screw. An embedded adjustment motor is fixed at the center position of the inner bottom surface of the upper placement slot, and a bottom transmission gear set is provided between the longitudinal adjustment screw and the embedded adjustment motor.

[0008] The bottom transmission gear set includes a transmission gear axially fixed to the bottom of the longitudinal adjustment screw and a drive gear axially fixed to the drive shaft at the lower end of the embedded adjustment motor, and the transmission gear and the drive gear are meshed with each other.

[0009] A lateral adjustment groove for installing an elastic limiting mechanism is provided on the inner side wall of the lateral installation blind hole, and an arc-shaped control port communicating with the lateral adjustment groove is provided on the lateral assembly plate.

[0010] The elastic limiting mechanism includes a lateral extrusion spring installed inside the lateral adjustment groove, an inner extrusion limit block and an external control block fixed on the inner extrusion limit block. The lateral extrusion spring squeezes the inner extrusion limit block outward to limit the insertion of the combined split counterweight block.

[0011] The combined split counterweight block includes a first modular counterweight block and a second modular counterweight block, and an annular limiting groove is formed on the outer arc surface of the first modular counterweight block and the second modular counterweight block.

[0012] The first modular counterweight block, the second modular counterweight block and the upper ends of the internal lifting base all have upwardly protruding top positioning protrusions, and the lower ends of the first modular counterweight block and the second modular counterweight block are provided with bottom positioning grooves that cooperate with the top positioning protrusions.

[0013] A pressure sensor module is installed on the bottom surface of the upper placement groove.

[0014] A magnetically controlled clamping arm matched with an internal lifting base is installed on the side wall of the internal thread control block.

[0015] The beneficial effects of the present invention are:

[0016] (1) The dumbbell placement base of the present invention, which has a modular counterweight loading and unloading mechanism, has an upper placement groove on the upper surface of the placement base. The upper placement groove is used to place and store the combined split counterweights. The dumbbell body can also be placed in a vertical manner, which makes storage very stable and convenient.

[0017] (2) The dumbbell body is inserted into the upper placement slot through the lateral assembly plate at the end, so that it can be stably placed in the upper placement slot. At the same time, the combined split counterweight block is inserted into the lateral installation blind hole and is fixed in place in the lateral assembly plate by an elastic limiting mechanism, which is convenient for loading and unloading;

[0018] (3) The dumbbell body adopts a split structure design, and the overall mass can be adjusted by inserting different numbers of counterweights, which greatly enhances the adjustability;

[0019] (4) A plurality of built-in storage slots for assembling the combined split counterweight blocks are provided on the bottom surface of the upper placement slot. The combined split counterweight blocks can be raised and lowered by the electronically controlled adjustable motor. At the same time, they can be independently controlled as needed, which facilitates loading and unloading and greatly enhances operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the present invention in a disassembled state.

[0023] Figure 3 It is a top view of the placement base in the present invention.

[0024] Figure 4 It is a schematic diagram of the internal structure of the placement base in the present invention.

[0025] Figure 5 It is a schematic diagram of the internal structure of the elastic limiting mechanism in the present invention. DETAILED DESCRIPTION

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The dumbbell placement base shown in the figure has a modular counterweight loading and unloading mechanism, including a placement base 1 and a dumbbell body. The placement base 1 has an upper placement groove 2 on its upper surface, and 12 modular split counterweights 3 arranged in a circular array are installed on the inner bottom surface of the upper placement groove 2. The dumbbell body includes a central control rod 4, lateral assembly plates 5 axially fixed at both ends of the central control rod 4, lateral mounting blind holes 6 opened on the outer wall of the lateral assembly plate 5, and an elastic limiting mechanism 7 installed on the lateral assembly plate 5.

[0029] Working Principle: A control panel and display are mounted on the upper surface of the dumbbell base 1. The display monitors the weight of the dumbbell, while the control panel controls the assembly status of the combined split counterweight 3. After setting the desired weight, the dumbbell is longitudinally inserted into the upper placement slot 2. The combined split counterweight 3 then automatically rises and inserts into the lateral mounting blind hole 6, where it is secured to the dumbbell via an elastic stopper 7.

[0030] The combined split counterweight 3 is loaded and unloaded in a uniform manner to ensure the mass balance of the dumbbell body. The lateral assembly plate 5 adopts a regular polygonal structure design. When the lateral assembly plate 5 is inserted into the upper placement slot 2, the lateral mounting blind hole 6 is aligned with the combined split counterweight 3, which is convenient for loading and unloading.

[0031] In order to facilitate internal storage, 12 built-in storage slots 21 for assembling the combined split counterweight blocks 3 are opened on the inner bottom surface of the upper placement slot 2.

[0032] In order to cooperate with the electric control adjustment, an internal lifting base 8 is installed on the inner bottom surface of the built-in storage slot 21, and an internal thread control block 9 is provided on the side wall of the internal lifting base 8. The internal thread of the internal thread control block 9 is equipped with a longitudinal adjustment screw 10, and an embedded adjustment motor 11 is fixed at the center position of the inner bottom surface of the upper placement slot 2. A bottom transmission gear set is provided between the longitudinal adjustment screw 10 and the embedded adjustment motor 11.

[0033] In order to cooperate with the gear transmission, the bottom transmission gear set includes a transmission gear 12 axially fixed to the bottom of the longitudinal adjustment screw 10 and a drive gear 13 axially fixed on the drive shaft at the lower end of the embedded adjustment motor 11. The transmission gear 12 and the drive gear 13 are engaged with each other.

[0034] The embedded adjustment motor 11 drives the driving gear 13 to rotate, thereby controlling the transmission gear 12 to rotate, and then drives the internal thread control block 9 to rise and fall inside the built-in storage groove 21 through the longitudinal adjustment screw 10, thereby adjusting the height of the combined split counterweight block 3.

[0035] In order to cooperate with lateral adjustment and control, a lateral adjustment groove for installing an elastic limit mechanism 7 is opened on the inner side wall of the lateral mounting blind hole 6, and an arc-shaped control port connected to the lateral adjustment groove is opened on the lateral assembly plate 5.

[0036] In order to cooperate with elastic extrusion and external control, the elastic limiting mechanism 7 includes a lateral extrusion spring 71 installed inside the lateral adjustment groove, an inner extrusion limit block 72 and an external control block 73 fixed on the inner extrusion limit block 72. The lateral extrusion spring 71 squeezes the inner extrusion limit block 72 outward to limit the insertion of the combined split counterweight block 3.

[0037] The lateral extrusion spring 71 presses the inner extrusion limit block 72 outward. The external control block 73 can be moved from the outside to cause the inner extrusion limit block 72 to expand and contract within the lateral adjustment slot. The external control block 73 causes the inner extrusion limit block 72 to contract within the lateral adjustment slot, thereby controlling its separation from the combined split counterweight 3.

[0038] In order to cooperate with assembly, installation and limiting, the combined split counterweight block 3 includes a first modular counterweight block 31 and a second modular counterweight block 32. An annular limiting groove 33 is opened on the outer arc surface of the first modular counterweight block 31 and the second modular counterweight block 32.

[0039] The elastic limiting mechanism 7 is inserted into the annular limiting groove 33 by squeezing the limiting block 72 inside to clamp and limit the first modular counterweight 31 or the second modular counterweight 32 .

[0040] In order to cooperate with the installation positioning and maintain the placement accuracy, the upper ends of the first modular counterweight block 31, the second modular counterweight block 32 and the internal lifting base 8 all have upwardly protruding top positioning protrusions, and the lower ends of the first modular counterweight block 31 and the second modular counterweight block 32 are provided with bottom positioning grooves that cooperate with the top positioning protrusions.

[0041] In order to automatically sense the position of the dumbbell body, a pressure sensor module 22 is installed on the bottom surface of the upper placement slot 2.

[0042] When the dumbbell body is placed inside the upper placement slot 2, the lateral assembly plate 5 at the bottom of the dumbbell body is squeezed on the pressure sensor module 22, thereby activating the pressure sensor module 22. The pressure sensor module 22 not only monitors the quality of the dumbbell body, but also monitors whether its placement position meets the standards, making it convenient to control the combined split counterweight block 3 to be introduced into the lateral mounting blind hole 6 to complete the assembly.

[0043] In order to cooperate with the magnetic control limit, a magnetic control clamping arm 14 that cooperates with the internal lifting base 8 is installed on the side wall of the internal thread control block 9.

[0044] The magnetically controlled clamping arm 14 includes a first clamping arm movably mounted on the side of the internal thread control block 9, a second clamping arm, a fixed electromagnet fixed on the side wall of the internal thread control block 9, and iron extrusion springs mounted on both sides of the fixed electromagnet. The fixed electromagnet is powered on and started, thereby driving the iron extrusion springs on both sides to contract. The contraction of the iron extrusion springs controls the first clamping arm and the second clamping arm to squeeze the slots on both sides of the internal lifting base 8 from the outside, thereby fixing the internal lifting base 8 and the internal thread control block 9 to a limited position.

[0045] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A dumbbell placement base with a modular counterweight loading and unloading mechanism, comprising a placement base (1) and a dumbbell body, characterized in that: The upper surface of the placing base (1) is provided with an upper placement groove (2), and a plurality of combined split counterweight blocks (3) arranged along a ring array are installed on the inner bottom surface of the upper placement groove (2). The dumbbell body includes a central control rod (4), lateral assembly plates (5) axially fixed to both ends of the central control rod (4), lateral installation blind holes (6) provided on the outer wall of the lateral assembly plate (5), and an elastic limiting mechanism (7) installed on the lateral assembly plate (5).

2. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 1, characterized in that: A plurality of built-in receiving slots (21) for assembling the combined split counterweight blocks (3) are provided on the inner bottom surface of the upper placement slot (2).

3. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 2, characterized in that: An internal lifting base (8) is installed on the inner bottom surface of the built-in storage groove (21), an internal thread control block (9) is provided on the side wall of the internal lifting base (8), and the internal thread of the internal thread control block (9) is equipped with a longitudinal adjustment screw (10), and an embedded adjustment motor (11) is fixed at the center position of the inner bottom surface of the upper placement groove (2), and a bottom transmission gear set is provided between the longitudinal adjustment screw (10) and the embedded adjustment motor (11).

4. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 3, characterized in that: The bottom-mounted transmission gear set comprises a transmission gear (12) axially fixed to the bottom of the longitudinal adjustment screw (10) and a drive gear (13) axially fixed to the drive shaft at the lower end of the embedded adjustment motor (11), and the transmission gear (12) and the drive gear (13) are meshed with each other.

5. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 1, characterized in that: A lateral adjustment groove for installing an elastic limiting mechanism (7) is provided on the inner side wall of the lateral mounting blind hole (6), and an arc-shaped control port communicating with the lateral adjustment groove is provided on the lateral assembly plate (5).

6. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 5, characterized in that: The elastic limiting mechanism (7) comprises a lateral extrusion spring (71) installed inside the lateral adjustment groove, an inner extrusion limiting block (72), and an external control block (73) fixed on the inner extrusion limiting block (72). The lateral extrusion spring (71) presses the inner extrusion limiting block (72) outward to insert and limit the combined split counterweight (3).

7. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 3, characterized in that: The combined split counterweight block (3) comprises a first modular counterweight block (31) and a second modular counterweight block (32), wherein an annular limiting groove (33) is provided on the outer arcuate surface of the first modular counterweight block (31) and the second modular counterweight block (32).

8. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 7, characterized in that: The upper ends of the first modular counterweight block (31), the second modular counterweight block (2) and the internal lifting base (8) are all provided with a top positioning protrusion protruding upward, and the lower ends of the first modular counterweight block and the second modular counterweight block are provided with a bottom positioning groove matching the top positioning protrusion.

9. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 1, characterized in that: A pressure sensor module (22) is installed on the inner bottom surface of the upper placement groove (2).

10. The dumbbell placement base with a modular counterweight loading and unloading mechanism according to claim 3, characterized in that: A magnetically controlled clamping arm (14) that matches the internal lifting base (8) is installed on the side wall of the internal thread control block (9).

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