Weight-adjustable rod bell

Abstract

The utility model discloses a weight-adjustable bar bell, which belongs to the technical field of bar bells and comprises a mounting mechanism, a plurality of balancing weights, an adjusting mechanism, a handheld rod and an anti-falling block, the mounting mechanism comprises a base, the balancing weights are different in weight and are mounted on the base, the adjusting mechanism comprises a protective shell, a first mounting shaft and a rotating component, and the rotating component is mounted on the protective shell. The protective shell is mounted above the base, the first mounting shaft is rotationally mounted on the protective shell and connected with the rotating assembly, one part of the rotating assembly is mounted in the protective shell, the handheld rod is fixedly mounted on the upper portion of the protective shell, and the anti-disengaging block is fixedly mounted at the end, away from the protective shell, of the handheld rod. The weight of the rod bell can be conveniently and quickly adjusted, so that the rod bell is suitable for different people.

Description

Technical Field

[0001] This utility model relates to the field of barbell technology, and specifically discloses a barbell with adjustable weight. Background Technology

[0002] Barbells are a new type of fitness equipment designed to meet the diverse load needs of different users during strength training and fitness. They combine the ease of use and adjustability of traditional dumbbells, allowing exercisers to flexibly adjust the training weight according to their own training goals and physical condition, thereby optimizing training results. This equipment is widely used in home fitness, gyms, and professional sports training.

[0003] As an innovative piece of fitness equipment, the barbell combines flexibility, safety, and smart features, adapting to the diverse strength training needs of modern users. With continuous technological advancements, future adjustable barbells will place even greater emphasis on user experience and personalized design, driving further development in the fitness equipment industry.

[0004] Patent CN201312975Y discloses a bar bell. The technical solution of this patent includes a bar body, a connecting rod fixedly installed inside the bar body, a counterweight fixedly installed at one end of the connecting rod, and a stop fixedly installed at the other end of the connecting rod. The bar body and the stop form a grip. However, this patent cannot achieve weight adjustment. Therefore, a weight-adjustable bar bell was invented to address this deficiency. Utility Model Content

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a weight-adjustable bar bell, comprising a counterweight, a handheld rod, an anti-detachment block, a mounting mechanism, and an adjustment mechanism. The mounting mechanism includes a base, and multiple counterweights are provided, each with a positioning groove. The multiple counterweights have different weights and are mounted on the base through the positioning grooves. The adjustment mechanism includes a protective shell, a first mounting shaft, a spiral shaft, and a rotating assembly. The protective shell is mounted above the base, the first mounting shaft is rotatably mounted on the protective shell, and the first mounting shaft is connected to the spiral shaft. The spiral shaft is connected to the rotating assembly, and the rotating assembly is mounted inside the protective shell. A portion of the spiral shaft is mounted inside the protective shell, the handheld rod is fixedly mounted on the upper part of the protective shell, and the anti-detachment block is fixedly mounted on the end of the handheld rod away from the protective shell.

[0006] Furthermore, a positioning block and a cushioning cotton are fixedly installed on the upper part of the base. Each counterweight has a mounting hole at the bottom, and the shape and size of the mounting hole are consistent with the positioning block. A positioning block is also fixedly installed on the upper part of each counterweight. An mounting block is fixedly installed on the lower part of the protective shell, and a mounting hole is also provided on the lower end face of the mounting block.

[0007] Furthermore, a circular through hole is provided on the outer surface of the protective shell. The first mounting shaft is rotatably mounted on the inner wall of the circular through hole of the protective shell. The mounting block is rotatably connected to the spiral shaft. The outer surface of the spiral shaft is provided with threads. The outer surface of the spiral shaft is provided with two mutually parallel planes. The counterweight is mounted on the mutually parallel planes of the spiral shaft through a positioning groove. A first bevel gear is rotatably mounted on the mounting block. The first bevel gear is provided with a threaded hole. The first bevel gear and the spiral shaft form a spiral engagement.

[0008] Furthermore, the first mounting shaft is provided with two first mounting shafts that are circumferentially spaced and mounted on the outer surface of the protective shell. The side of the first mounting shaft is provided with a circular groove, and a mounting plate is fixedly installed in the circular groove of the first mounting shaft. A rotating block is fixedly installed on the side of the mounting plate, and the rotating block is provided with an internal hexagonal groove.

[0009] Furthermore, the rotating assembly is provided in two sets. The rotating assembly includes a second mounting shaft. Each second mounting shaft is rotatably mounted on the side of the first mounting shaft. A first end face gear is fixedly mounted on the outer surface of each first mounting shaft. A second end face gear is mounted on the outer surface of each second mounting shaft. The first end face gear and the second end face gear mesh. The first end face gears on the two first mounting shafts have opposite gear directions, and the second end face gears on the two second mounting shafts have opposite gear directions.

[0010] Furthermore, a fixed disk is fixedly installed on the outer surface of each second mounting shaft. Four protruding shafts are fixedly installed at equal intervals on the side of each fixed disk facing the first end face gear. Four circular through holes are provided at equal intervals on the side of the second end face gear. Each protruding shaft is slidably installed on the inner wall of each circular through hole of the second end face gear. A spring is wound on each protruding shaft. One end of the spring is fixedly installed on the fixed disk, and the other end of the spring is fixedly installed on the end face of the second end face gear away from the first end face gear.

[0011] Furthermore, a middle rod is fixedly installed on the outer surface of the second mounting shaft. The outer surface of the middle rod is provided with multiple slots at equal intervals around the circumference. The outer surface of the protective shell is provided with two circular through holes II. The axial direction of each circular through hole II is perpendicular to the axial direction of the circular through hole I. A vertical shaft is slidably installed on the inner wall of the circular through hole II. A handle is fixedly installed on the upper part of the vertical shaft. A locking block is fixedly installed on the lower part of the vertical shaft. A wedge-shaped block is provided on the lower side of the locking block. The wedge-shaped block of the locking block has an inclined surface on its side, and the inclined surface of the wedge-shaped block of the locking block faces the slot.

[0012] Furthermore, a second bevel gear is fixedly mounted on the outer surface of the second mounting shaft. The second bevel gear is fixedly connected to the intermediate rod and meshes with the first bevel gear.

[0013] The advantages of this utility model compared with the prior art are: (1) This utility model realizes the convenient and quick adjustment of the weight of the barbell, thereby adapting to different groups of people. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the installation position of the counterweight block of this utility model.

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram showing the positional relationship between the counterweight and the base of this utility model.

[0018] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0019] Figure 6 This is a schematic diagram showing the positional relationship between the protective shell and the mounting block of this utility model.

[0020] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C.

[0021] Figure 8 This is a schematic diagram showing the connection relationship between the first bevel gear and the helical shaft of this utility model.

[0022] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point D.

[0023] Figure 10 This is a schematic diagram showing the connection relationship between the first mounting shaft and the second mounting shaft of this utility model.

[0024] Figure 11 for Figure 10 A magnified schematic diagram of the structure at point E in the middle.

[0025] Reference numerals: 1-Mounting mechanism; 2-Counterweight; 3-Adjusting mechanism; 4-Handheld rod; 5-Anti-detachment block; 101-Positioning groove; 102-Base; 103-Positioning block; 104-Buffer cotton; 105-Mounting hole; 301-Protective shell; 302-First mounting shaft; 303-Mounting block; 304-Mounting plate; 305-Rotating block; 306-Handle; 307-Vertical shaft; 308-First end face gear; 309-Second end face gear; 310-Fixing disc; 311-Extending shaft; 312-Spring; 313-Second mounting shaft; 314-Slot; 315-Slot block; 316-First bevel gear; 317-Intermediate rod; 318-Second bevel gear; 319-Spiral shaft. Detailed Implementation

[0026] The technical solution of this utility model will be further explained below with reference to specific embodiments.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] As attached Figure 1 ~Appendix Figure 10 As shown, the mounting mechanism 1 includes a base 102, and multiple counterweights 2 are provided. Each counterweight 2 is provided with a positioning groove 101. The weights of the multiple counterweights 2 are different. The counterweights 2 are mounted on the base 102 through the positioning grooves 101. A positioning block 103 and a cushioning cotton 104 are fixedly installed on the upper part of the base 102. Each counterweight 2 is provided with a mounting hole 105 at the lower part. The shape and size of the mounting hole 105 are the same as those of the positioning block 103. A positioning block 103 is also fixedly installed on the upper part of each counterweight 2. A mounting block 303 is fixedly installed on the lower part of the protective shell 301. The lower end face of the mounting block 303 is also provided with a mounting hole 105.

[0029] As attached Figure 2 ~Appendix Figure 10As shown, the adjustment mechanism 3 includes a protective shell 301, a first mounting shaft 302, a second mounting shaft 313, and a spiral shaft 319. The protective shell 301 is mounted above the base 102. The first mounting shaft 302 is rotatably mounted on the protective shell 301 and connected to the spiral shaft 319. A portion of the spiral shaft 319 is installed inside the protective shell 301. A handheld lever 4 is fixedly mounted on the upper part of the protective shell 301. An anti-detachment block 5 is fixedly mounted on the end of the handheld lever 4 away from the protective shell 301. A circular through hole is provided on the outer surface of the protective shell 301. The first mounting shaft 302 is rotatably mounted on the inner wall of the circular through hole of the protective shell 301. The mounting block 303 is rotatably connected to the spiral shaft 319. The outer surface of the spiral shaft 319 is threaded and has two parallel planes. A counterweight 2 is mounted on the parallel planes of the spiral shaft 319 through a positioning groove 101. A first bevel gear 316 is rotatably mounted on the mounting block 303. The protective housing 301 has a threaded hole and a helical shaft 319 in a helical fit. Two first mounting shafts 302 are circumferentially spaced and mounted on the outer surface of the protective housing 301. A circular groove is provided on the side of each first mounting shaft 302, and a mounting plate 304 is fixedly installed within this groove. A rotating block 305 is fixedly installed on the side of the mounting plate 304, and the rotating block 305 has an internal hexagonal groove. Each second mounting shaft 313 is rotatably mounted on the side of the first mounting shaft 302. A first end face gear 308 is fixedly installed on the outer surface of each first mounting shaft 302, and a second end face gear 309 is installed on the outer surface of each second mounting shaft 313. The first end face gears 308 and 309 mesh. The first end face gears 308 on the two first mounting shafts 302 have opposite gear directions, and the second end face gears 309 on the two second mounting shafts 313 have opposite gear directions.

[0030] As attached Figure 3 ~Appendix Figure 11As shown, a fixed disk 310 is fixedly mounted on the outer surface of each second mounting shaft 313. Four protruding shafts 311 are fixedly mounted at equal intervals on the side of each fixed disk 310 facing the first end face gear 308. Four circular through holes are circumferentially spaced on the side of the second end face gear 309. Each protruding shaft 311 is slidably mounted on the inner wall of each circular through hole of the second end face gear 309. A spring 312 is wound around each protruding shaft 311. One end of the spring 312 is fixedly mounted on the fixed disk 310, and the other end is fixedly mounted on the end face of the second end face gear 309 away from the first end face gear 308. A middle rod 317 is fixedly mounted on the outer surface of the second mounting shaft 313. The outer surface of the middle rod 317 is circumferentially spaced. Multiple slots 314 are evenly spaced. Two circular through holes 2 are provided on the outer surface of the protective shell 301. The axis of each circular through hole 2 is perpendicular to the axis of the circular through hole 1. A vertical shaft 307 is slidably installed on the inner wall of the circular through hole 2. A handle 306 is fixedly installed on the upper part of the vertical shaft 307. A locking block 315 is fixedly installed on the lower part of the vertical shaft 307. A wedge-shaped block is provided on the lower side of the locking block 315. The wedge-shaped block of the locking block 315 has an inclined surface on its side. The inclined surface of the wedge-shaped block of the locking block 315 faces the slot 314. A second bevel gear 318 is also fixedly installed on the outer surface of the second mounting shaft 313. The second bevel gear 318 is fixedly connected to the intermediate rod 317. The second bevel gear 318 meshes with the first bevel gear 316. The spiral shaft 319 is fixedly connected to the base 102.

[0031] The working principle of this utility model is as follows.

[0032] (i) When additional counterweight is required, insert an Allen wrench into the hexagonal groove of the rotating block 305, then lift the handle 306 on the opposite side. The handle 306 drives the vertical shaft 307 to move, causing the wedge-shaped block of the locking block 315 to disengage from the slot 314. Then, rotate the rotating block 305 using the Allen wrench. The rotating block 305 drives the first mounting shaft 302 to rotate via the mounting plate 304. The first mounting shaft 302 drives the first end face gear 308 to rotate. The first end face gear 308... The second end face gear 309 drives the fixed disk 310 to move, the fixed disk 310 drives the second mounting shaft 313 to rotate, the second mounting shaft 313 drives the second bevel gear 318 to rotate, the second bevel gear 318 rotates through the first bevel gear 316, the first bevel gear 316 drives the spiral shaft 319 to move, thereby driving the base 102 to descend through the spiral shaft 319, creating a gap between the protective shell 301 and the base 102, and then the counterweight 2 is placed on the base 102, and the counterweight is adjusted by different counterweights 2.

[0033] (ii) The counterweight 2 is fixed by the base 102 and the mounting hole 105 to prevent the counterweight 2 from shaking. After the counterweight is adjusted, the raised handle 306 is lowered, and then the other handle 306 is raised. Then, the rotating block 305 on the other side is rotated by the Allen wrench, which in turn drives the first bevel gear 316 to rotate through the first end face gear 308 and the second end face gear 309 on the other side. The first bevel gear 316 drives the spiral shaft 319 to move in the opposite direction, thereby driving the base 102 to rise.

[0034] (iii) After the adjustment is completed, insert the wedge blocks of both locking blocks 315 into the slots 314 to lock them. When locked, the counterweight block 2 will not loosen, thus improving safety.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. The scope of this invention is defined by the appended claims rather than the foregoing description; therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A weight-adjustable barbell comprising a weight block (2), a handgrip rod (4) and an anti-drop block (5), characterized in that: The weight-adjustable barbell further comprises a mounting mechanism (1) and an adjusting mechanism (3), the mounting mechanism (1) comprises a base (102), a plurality of counterweights (2) are arranged, each counterweight (2) is provided with a positioning groove (101), the plurality of counterweights (2) have different weights, the counterweights (2) are mounted on the base (102) through the positioning grooves (101), the adjusting mechanism (3) comprises a protective shell (301), a first mounting shaft (302), a screw shaft (319) and a rotating assembly, the protective shell (301) is mounted above the base (102), the first mounting shaft (302) is rotatably mounted on the protective shell (301), the first mounting shaft (302) is connected with the screw shaft (319), the screw shaft (319) is connected with the rotating assembly, the rotating assembly is mounted in the protective shell (301), a part of the screw shaft (319) is mounted in the protective shell (301), a hand rod (4) is fixedly mounted on the upper portion of the protective shell (301), and an anti-dropping block (5) is fixedly mounted on the end, away from the protective shell (301), of the hand rod (4).

2. A weight-adjustable maraca according to claim 1, wherein: The base (102) is fixedly provided with a positioning block (103) and a buffer cotton (104) on the upper portion, each counterweight (2) is provided with an installation hole (105) on the lower portion, the installation hole (105) is consistent with the positioning block (103) in shape and size, and each counterweight (2) is also fixedly provided with a positioning block (103) on the upper portion. The lower end surface of the mounting block (303) is also provided with an installation hole (105).

3. A weight adjustable maraca according to claim 2, wherein: The outer surface of the protective shell (301) is provided with a circular through hole I, the first mounting shaft (302) is rotatably mounted on the inner wall of the circular through hole I of the protective shell (301), the mounting block (303) is rotatably connected with the screw shaft (319), the outer surface of the screw shaft (319) is provided with threads, the outer surface of the screw shaft (319) is provided with two parallel planes, the counterweights (2) are mounted on the parallel planes of the screw shaft (319) through the positioning grooves (101), the first bevel gear (316) is rotatably mounted on the mounting block (303), the first bevel gear (316) is provided with a threaded hole, and the first bevel gear (316) is in screw connection with the screw shaft (319).

4. A weight adjustable maraca according to claim 3, wherein: The first mounting shaft (302) is provided with two first mounting shafts (302) which are installed on the outer surface of the protective shell (301) in a circumferential equidistant manner, the side surface of the first mounting shaft (302) is provided with a circular groove, the mounting plate (304) is fixedly mounted in the circular groove of the first mounting shaft (302), the rotating block (305) is fixedly mounted on the side surface of the mounting plate (304), and the inner hexagonal groove is arranged on the rotating block (305).

5. A weight adjustable maraca according to claim 4, wherein: The rotating assembly is provided with two groups, the rotating assembly comprises a second mounting shaft (313), each second mounting shaft (313) is rotatably mounted on the side of the first mounting shaft (302), one first face gear (308) is fixedly mounted on the outer surface of each first mounting shaft (302), one second face gear (309) is fixedly mounted on the outer surface of each second mounting shaft (313), the first face gear (308) and the second face gear (309) are engaged, the gear directions of the first face gears (308) on the two first mounting shafts (302) are opposite, and the gear directions of the second face gears (309) on the two second mounting shafts (313) are opposite.

6. A weight adjustable maraca according to claim 5, wherein: One fixing disc (310) is fixedly mounted on the outer surface of each second mounting shaft (313), four protruding shafts (311) are fixedly mounted on the side of each fixing disc (310) in an equidistant manner, four circular through holes are arranged on the side of the second face gear (309) in a circumferential equidistant manner, each protruding shaft (311) is slidably mounted on the inner wall of each circular through hole of the second face gear (309), and a spring (312) is wound around each protruding shaft (311).

7. A weight adjustable maraca according to claim 6, wherein: The outer surface of the second mounting shaft (313) is fixedly provided with an intermediate rod (317), a plurality of clamping grooves (314) are arranged on the outer surface of the intermediate rod (317) in a circumferential equidistant manner, the outer surface of the protection shell (301) is provided with two circular through holes II, the axial directions of the two circular through holes II are perpendicular to the axial direction of the circular through hole I, a vertical shaft (307) is slidably mounted on the inner wall of each circular through hole II, a handle (306) is fixedly mounted on the upper portion of the vertical shaft (307), a clamping block (315) is fixedly mounted on the lower portion of the vertical shaft (307), a wedge-shaped block is arranged on the lower side of the clamping block (315), an inclined surface is arranged on the side of the wedge-shaped block of the clamping block (315), and the inclined surface of the wedge-shaped block of the clamping block (315) faces the clamping groove (314).

8. A weight adjustable maraca according to claim 7, wherein: The outer surface of the second mounting shaft (313) is further fixedly provided with a second bevel gear (318), the second bevel gear (318) is fixedly connected with the intermediate rod (317), and the second bevel gear (318) is engaged with the first bevel gear (316).

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