Weight-adjustable fitness equipment

Abstract

The utility model relates to the technical field of fitness equipment, in particular to weight-adjustable fitness equipment, which comprises a holding rod mechanism and a plurality of counterweight parts, the holding rod mechanism comprises a holding rod and adjusting rod components mounted at the left end and the right end of the holding rod, and each adjusting rod component comprises a driving limiting module and an adjusting rod which are in driving connection; the driving limiting module is used for driving the adjusting rod to move back and forth in the axis direction and achieving multi-gear adjusting and fixing, the balance weight piece is provided with a through hole, and the adjusting rod is arranged in the through hole in a penetrating mode so that the balance weight piece can be installed at the two ends of the rod holding mechanism. The weight adjusting process is simpler, easy, labor-saving, convenient and fast, and the fitness experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to a fitness device with adjustable weight. Background Technology

[0002] Existing fitness equipment such as barbells or dumbbells requires users to manually lift and install the weights onto both ends of the grip to increase or remove them from the grip to decrease the weight. This adjustment process is cumbersome, laborious, inconvenient, and affects the user's fitness experience. Utility Model Content

[0003] The present invention aims to provide a weight-adjustable fitness device to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a weight-adjustable fitness equipment, including a grip mechanism and multiple counterweights. The grip mechanism includes a grip and an adjustment rod assembly installed at the left and right ends of the grip. The adjustment rod assembly includes a drive limiting module and an adjustment rod connected by a drive. The drive limiting module is used to drive the adjustment rod to move back and forth along the axial direction and realize multi-level adjustment and fixation. The counterweights have through holes, and the adjustment rods pass through the through holes to realize the installation of the counterweights at both ends of the grip mechanism.

[0005] Preferably, the drive limiting module includes a fixed base and a drive positioning component, a locking component, and a transmission rod movably installed in the fixed base. The drive positioning component is a rotatable and elastically pressable drive positioning component, and the locking component is an elastically pressable locking component. The adjusting rod is provided with a toothed portion and a gear fixing groove on both sides along the axial direction. The toothed portions of the drive positioning component, the transmission rod, and the adjusting rod are sequentially driven and engaged. The drive positioning component is movably limited and engaged with the gear fixing groove. The locking component is used to lock and fix the drive positioning component.

[0006] Preferably, the drive limiting module further includes a first elastic element and a second elastic element. The drive positioning element is elastically movable in the fixed seat in the vertical direction through the first elastic element, and the locking element is elastically movable in the fixed seat in the horizontal direction through the second elastic element.

[0007] Preferably, at least one side of the adjusting rod is provided with a plurality of gear sensing grooves along the length direction, and the fixed base is provided with an elastic positioning member, which is in a movable limiting cooperation with the gear sensing groove.

[0008] Preferably, the drive positioning component includes a drive shaft and a knob and a positioning pin respectively disposed at the upper and lower ends of the drive shaft. The knob is located outside the top side of the fixed seat, and the positioning pin is in a movable limiting cooperation with the gear fixing groove to realize the multi-gear adjustment and fixing of the adjustment rod.

[0009] Preferably, an annular recess is formed between the drive shaft and the positioning pin. The locking component includes a button and a horizontal locking plate connected to the button. The locking plate has a through hole for the positioning pin to pass through. The locking plate is fitted onto the annular recess to prevent the positioning pin from moving upward, thereby locking and fixing the drive positioning component.

[0010] Preferably, a first gear is mounted on the drive shaft, and a second gear and a third gear are mounted on the transmission rod. The first gear and the second gear are in a transmission engagement, and the third gear is in a transmission engagement with the locking gear.

[0011] Preferably, the locating pin includes an inverted frustum, a cylinder, and a cone arranged sequentially and coaxially.

[0012] Preferably, the grip is a hollow structure, and the adjusting rod is movably telescopically disposed inside both ends of the grip. The two sides of the end of the grip are respectively provided with transverse cut holes and longitudinal cut holes. The transverse cut holes correspond to the locking teeth, and the longitudinal cut holes correspond to the gear fixing grooves.

[0013] Preferably, it also includes a base, on which a receiving groove is provided for stacking multiple counterweights, and on both sides of the receiving groove are blocking parts for blocking and limiting the counterweights.

[0014] Preferably, the fitness equipment is dumbbells or barbells.

[0015] This utility model has the following beneficial effects:

[0016] This invention allows users to adjust the weight by simply pressing and rotating the drive positioning component and pressing the locking component, which in turn moves the adjusting rod back and forth along the axial direction. This allows for adjustment of the number of dumbbell plates installed at both ends of the grip mechanism, thus achieving the purpose of weight adjustment. The weight adjustment process is simpler, easier, less strenuous, convenient, and quick, enhancing the user's fitness experience. Attached Figure Description

[0017] Figure 1 This is a perspective view of Embodiment 1 of this utility model.

[0018] Figure 2 This is a top view of Embodiment 1 of this utility model.

[0019] Figure 3 This is a half-sectional view of Embodiment 1 of this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model.

[0021] Figure 5 This is an exploded view of Embodiment 1 of the present invention from one perspective.

[0022] Figure 6 This is an exploded view of Embodiment 1 of this utility model from another perspective.

[0023] Figure 7 This is a schematic diagram of the adjusting rod in Embodiment 1 of this utility model.

[0024] Figure 8 This is a schematic diagram of the drive positioning component of Embodiment 1 of this utility model.

[0025] Figure 9 This is a schematic diagram of the locking component of Embodiment 1 of this utility model.

[0026] Figure 10 This is a schematic diagram of the base of Embodiment 1 of this utility model.

[0027] Figure 11 This is a perspective view of Embodiment 2 of this utility model.

[0028] Figure labels: 1. Handle, 1.1 Horizontal cut hole, 1.2 Longitudinal cut hole, 2. Fixing base, 2.1 Indicator mark, 3. Drive positioning component, 3.1 Knob, 3.2 Drive shaft, 3.3 Positioning pin, 3.31 Frustum, 3.32 Cylinder, 3.33 Cone, 3.4 Annular recess, 3.5 Blocking ring, 4. Locking component, 4.1 Button, 4.2 Locking plate, 4.21 Through hole, 5 Transmission rod, 6 First elastic component, 7 Second elastic component, 8 First gear, 9 Second gear, 10 Third gear, 11. Adjusting rod, 11.1 Gear tooth part, 11.2 Gear fixing groove, 11.3 Gear sensing groove, 12 Elastic positioning component, 13 Counterweight, 13.1 Through hole, 14. Base, 14.1 Receiving groove, 14.2 Blocking part, 14.3 Clearance support opening. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] See Figure 1-10As shown, as an embodiment of this utility model, a weight-adjustable fitness equipment is provided. The fitness equipment is specifically a dumbbell, including a grip mechanism and multiple counterweights 13. The counterweights 13 are dumbbell plates, and the multiple dumbbell plates are divided into left and right dumbbell plate groups. Each dumbbell plate group includes multiple dumbbell plates stacked horizontally. The grip mechanism includes a grip bar 1 and an adjustment rod 11 assembly installed at the left and right ends of the grip bar 1. The adjustment rod 11 assembly includes a drive limiting module and an adjustment rod 11 that are driven together. The drive limiting module is used to drive the adjustment rod 11 to move back and forth along the axial direction and realize multi-level adjustment and fixation. The counterweights 13 have through holes 13.1, and the adjustment rods 11 pass through the through holes 13.1 to realize the installation of the counterweights 13 at both ends of the grip mechanism. The drive limiting module includes a fixed base 2 and a drive positioning component 3, a locking component 4, and a transmission rod 5 movably installed within the fixed base 2. The drive positioning component 3 is rotatable and elastically pressable, and the locking component 4 is elastically pressable. The adjusting rod 11 has a toothed portion 11.1 and a gear fixing groove 11.2 on its front and rear sides along the axial direction, respectively. The drive positioning component 3, the transmission rod 5, and the toothed portion 11.1 of the adjusting rod 11 are sequentially driven and engaged. The drive positioning component 3 is movably limited and engaged with the gear fixing groove 11.2. The locking component 4 is used to lock and fix the drive positioning component 3. By rotating the drive positioning component 3, the transmission rod 5 is rotated, which in turn drives the adjusting rod 11 to move back and forth along the axial direction, thereby adjusting the number of dumbbell plates installed at both ends of the grip mechanism, thus achieving weight adjustment. Specifically, by controlling the two adjusting rods 11 to extend in a direction away from each other, the number of dumbbell plates installed on the adjusting rods 11 can be increased, achieving the weight increase process. The two adjusting rods 11 retract by moving closer to each other, thus reducing the number of dumbbell plates mounted on the adjusting rods 11 and achieving weight reduction. Pressing down on the driving positioning component 3 causes it to engage with the gear fixing groove 11.2, allowing for multi-gear adjustment and fixation of the adjusting rod 11. At this time, the locking component 4 locks the driving positioning component 3, preventing the adjusting rod 11 from moving after weight adjustment, ensuring the accuracy of weight adjustment and the safety and reliability of use. When readjustment is required, pressing the locking component 4 backward releases its locking of the driving positioning component 3. The driving positioning component 3 elastically moves upward to reset, releasing its engagement with the gear fixing groove 11.2, allowing the adjusting rod 11 to regain its freedom of movement along the axial direction. Rotating the driving positioning component 3 then moves the adjusting rod 11 back and forth along the axial direction, thereby readjusting the number of dumbbell plates mounted at both ends of the grip mechanism and achieving the purpose of readjustment.

[0033] This invention allows users to adjust the weight by pressing and rotating the drive positioning component 3 and pressing the locking component 4, thereby moving the adjusting rod 11 back and forth along the axial direction. This adjusts the number of dumbbell plates installed at both ends of the grip mechanism, making the weight adjustment process simpler, easier, and more convenient, thus enhancing the user's fitness experience.

[0034] In this embodiment, the drive limiting module further includes a first elastic element 6 and a second elastic element 7, which are specifically springs. The drive positioning element 3 is elastically and movably disposed in the fixed seat 2 in the vertical direction through the first elastic element 6, so that the drive positioning element 3 always has an upward elastic force, thereby providing elastic force for the upward movement and reset of the drive positioning element 3. The locking element 4 is elastically and movably disposed in the fixed seat 2 in the horizontal direction through the second elastic element 7, so that the locking element 4 always has a forward elastic force, thereby providing elastic force for the forward movement and reset of the drive positioning element 3. At the same time, the locking element 4 can lock and fix the drive positioning element 3 in the low position state, thereby ensuring the stability of the limiting cooperation between the drive positioning element 3 and the gear fixing groove 11.2, thereby preventing the adjustment rod 11 from moving after the weight adjustment is completed, ensuring the accuracy of the weight adjustment and the safety and reliability of the use process.

[0035] In this embodiment, multiple gear sensing slots 11.3 are provided on the upper and lower sides of the adjusting rod 11 along its length. An elastic positioning element 12 is provided on the fixed base. Specifically, the elastic positioning element 12 is a spring and ball bearing structure. The elastic positioning element 12 engages with the gear sensing slots 11.3 for movable limiting. That is, when the rotary drive is in the weight adjustment position, the position can be determined by the sound and touch generated by the elastic limiting action of the ball bearing and the gear sensing slots 11.3. Each gear position corresponds to adding or removing one number of dumbbell plates, thereby achieving precise weight adjustment. It should be noted that in this embodiment, the elastic positioning element 12 only engages with the lower gear sensing slot 11.3 of the adjusting rod 11 for movable limiting. The reason for providing gear sensing slots 11.3 on both the upper and lower sides is simply to ensure that the two adjusting rods 11 have the same structure and can be used interchangeably; only the position needs to be adjusted, making it more universal and convenient.

[0036] In this embodiment, the drive positioning component 3 includes a drive shaft 3.2 and knobs 3.1 and positioning pins 3.3 respectively disposed at the upper and lower ends of the drive shaft 3.2. The knobs 3.1 are located outside the top side of the fixed base 2. The positioning pins 3.3 are in a movable limiting cooperation with the gear fixing groove 11.2 to realize the multi-gear adjustment and fixation of the adjusting rod 11. An annular recess 3.4 is formed between the drive shaft 3.2 and the positioning pin 3.3. The locking component 4 includes a button 4.1 and a horizontal locking plate 4.2 connected to the button 4.1. The locking plate 4.2 has a through hole 4.21 for the positioning pin 3.3 to pass through. The locking plate 4.2 is sleeved on the annular recess 3.4 to prevent the positioning pin 3.3 from moving upward, thereby realizing the locking and fixing of the drive positioning component 3.

[0037] In this embodiment, a triangular pointing mark 2.1 is provided on the fixed base 2 corresponding to the rear of the knob 3.1, and a marking dot is provided on the knob 3.1 to facilitate recording the rotation amount and rotation position of the drive positioning component 3.

[0038] In this embodiment, a blocking ring 3.5 is sleeved on the outer side of the end of the drive shaft 3.2 near the annular recess 3.4 to block the locking plate 4.2 and prevent the locking plate 4.2 from going beyond the outer surface of the annular recess 3.4.

[0039] In this embodiment, a first gear 8 is mounted on the drive shaft 3.2, and a second gear 9 and a third gear 10 are mounted on the transmission rod 5. The first gear 8 and the second gear 9 are in transmission engagement, and the third gear 10 is in transmission engagement with the toothed part 11.1. Transmission is carried out through gears, thereby ensuring transmission accuracy and stability.

[0040] In this embodiment, the positioning pin 3.3 includes an inverted frustum 3.31, a cylinder 3.32, and a cone 3.33 arranged vertically and coaxially. The cylinder 3.32 is in a limiting fit with the stop fixing groove 11.2. The inverted frustum 3.31 is designed so that when the positioning pin 3.3 moves downward, it can drive the locking plate 4.2 to gradually move backward, thereby compressing the second spring. This results in a greater elastic force for the locking plate 4.2 to return to its forward position. When the locking plate 4.2 passes the inverted frustum 3.31, the locking pin 3.33 moves downward. The truncated cone 3.31 can move forward more stably and fit onto the annular recess 3.4, and the contact area between the top surface of the truncated cone 3.31 and the locking plate 4.2 is larger, which can better prevent the positioning pin 3.3 from moving upward and thus lock and fix the drive positioning component 3. The structure of the cylinder 3.32 and the cone 3.33 can make the limiting fit between the positioning pin 3.3 and the gear fixing groove 11.2 smoother and more natural, and less prone to jamming.

[0041] In this embodiment, the drive positioning component 3 and the transmission rod 5 are respectively vertically installed in the fixed base 2, and the drive positioning component 3 and the transmission rod 5 are respectively located on both sides above the axis of the adjusting rod 11. This structural layout saves more space and improves the ease of operation.

[0042] In this embodiment, the grip 1 has a hollow structure, and the adjusting rod 11 is movably telescopically arranged inside both ends of the grip 1. A transverse cut hole 1.1 and a longitudinal cut hole 1.2 are respectively opened on both sides of the end of the grip 1. The transverse cut hole 1.1 corresponds to the locking tooth part 11.1, and the third gear 10 passes through the transverse cut hole 1.1 and is in transmission cooperation with the locking tooth part 11.1. The longitudinal cut hole 1.2 corresponds to the gear fixing groove 11.2, and the positioning pin 3.3 passes through the longitudinal cut hole 1.2 and is in limiting cooperation with the gear fixing groove 11.2. At the same time, the longitudinal cut hole 1.2 can also play a left and right limiting role for the positioning pin 3.3, further improving the stability of the limiting cooperation between the longitudinal cut hole 1.2 and the gear fixing groove 11.2.

[0043] In this embodiment, a base 14 is also included. A receiving groove 14.1 is provided on the base 14. The receiving groove 14.1 is used for stacking multiple counterweights 13. A blocking part 14.2 is provided on both sides of the receiving groove 14.1 to block and limit the counterweights 13. A clearance support opening 14.3 is formed at the blocking part 14.2 near the center of the handle 1 for the fixed seat 2 to support and make way.

[0044] Example 2: For the sake of brevity, this example mainly describes the differences from Example 1.

[0045] See Figure 11 As shown, as an embodiment of the present invention, a weight-adjustable fitness equipment is provided, specifically a barbell, and the counterweight 13 is a barbell plate.

[0046] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A weight-adjustable fitness equipment, characterized in that: The device includes a grip mechanism and multiple counterweights. The grip mechanism includes a grip and adjustment rod assemblies installed at the left and right ends of the grip. The adjustment rod assembly includes a drive limit module and an adjustment rod connected by a drive. The drive limit module is used to drive the adjustment rod to move back and forth along the axial direction and realize multi-level adjustment and fixation. The counterweight has a through hole, and the adjustment rod passes through the through hole to realize the installation of the counterweight at both ends of the grip mechanism.

2. The weight-adjustable fitness equipment according to claim 1, characterized in that: The drive limiting module includes a fixed base and a drive positioning component, a locking component, and a transmission rod that are movably installed in the fixed base. The drive positioning component is rotatable and elastically pressable, and the locking component is elastically pressable. The adjusting rod has a toothed part and a gear fixing groove on both sides along the axial direction. The toothed parts of the drive positioning component, the transmission rod, and the adjusting rod are sequentially driven and engaged. The drive positioning component is movably limited and engaged with the gear fixing groove. The locking component is used to lock and fix the drive positioning component.

3. The weight-adjustable fitness equipment according to claim 2, characterized in that: The drive limiting module also includes a first elastic element and a second elastic element. The drive positioning element is elastically movable in the fixed seat in the vertical direction through the first elastic element, and the locking element is elastically movable in the fixed seat in the horizontal direction through the second elastic element.

4. The weight-adjustable fitness equipment according to claim 2, characterized in that: The adjusting rod has multiple gear sensing slots along its length on at least one side, and an elastic positioning element is provided on the fixed base, which is in a limited movement cooperation with the gear sensing slot.

5. The weight-adjustable fitness equipment according to claim 2, characterized in that: The drive positioning component includes a drive shaft and knobs and positioning pins respectively located at the upper and lower ends of the drive shaft. The knobs are located on the top side of the fixed base, and the positioning pins cooperate with the gear fixing groove to achieve multi-gear adjustment and fixation of the adjustment rod.

6. The weight-adjustable fitness equipment according to claim 5, characterized in that: An annular recess is formed between the drive shaft and the positioning pin. The locking component includes a button and a horizontal locking plate connected to the button. The locking plate has a through hole for the positioning pin to pass through. The locking plate is fitted onto the annular recess to prevent the positioning pin from moving upward, thereby locking and fixing the drive positioning component.

7. The weight-adjustable fitness equipment according to claim 5, characterized in that: A first gear is mounted on the drive shaft, and a second gear and a third gear are mounted on the transmission rod. The first gear and the second gear are in a transmission engagement, and the third gear is in a transmission engagement with the locking gear.

8. The weight-adjustable fitness equipment according to claim 5, characterized in that: The locating pins include an inverted frustum, a cylinder, and a cone arranged sequentially and coaxially.

9. The weight-adjustable fitness equipment according to claim 2, characterized in that: The grip is hollow, and the adjustment rod is movable and telescopically located inside both ends of the grip. The two sides of the end of the grip have transverse and longitudinal cut holes, respectively. The transverse cut holes correspond to the locking teeth, and the longitudinal cut holes correspond to the gear fixing groove.

10. The weight-adjustable fitness equipment according to claim 1, characterized in that: It also includes a base with a receiving groove for stacking multiple counterweights. The receiving groove has blocking parts on both sides for blocking and limiting the counterweights.

11. The weight-adjustable fitness equipment according to any one of claims 1-10, characterized in that: The fitness equipment consists of dumbbells or barbells.

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