CN212789576U

CN212789576U - Dumbbell and placing seat for placing same

Info

Publication number: CN212789576U
Application number: CN202021962332.5U
Authority: CN
Inventors: 王晓巧; 程春燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-03-26
Anticipated expiration: 2030-09-09

Abstract

The utility model relates to a dumbbell and a placing seat for placing the dumbbell, the dumbbell comprises a holding rod and dumbbell heads axially connected with the two ends of the holding rod, the dumbbell heads are respectively formed by axially and sequentially superposing a plurality of dumbbell pieces, the holding rod comprises a connecting sleeve and two telescopic rods positioned in the connecting sleeve, and each telescopic rod synchronously extends and retracts along the axial direction of the connecting sleeve; the adjacent dumbbell pieces are axially locked, and the telescopic rod penetrates through the axial direction of each dumbbell piece to achieve the radial positioning of each dumbbell piece; the dumbbell sheet at the innermost side is fixedly connected with the two ends of the connecting sleeve; one end of the connecting sleeve is provided with a telescopic driving component for controlling the distance between the extension of the telescopic rods at the two ends and the outside of the connecting sleeve. The utility model discloses the dumbbell, through the distance of stretching out of control connection sleeve both ends telescopic link, realizes constituting the dumbbell piece connection quantity of dumbbell head.

Description

Dumbbell and placing seat for placing same

Technical Field

The utility model belongs to the sport equipment field, in particular to dumbbell and be used for placing the seat of placing of this dumbbell.

Background

Dumbbells are widely used as fitness equipment, such as chest extension training, biceps training, deltoid training and the like. There are two main types of dumbbells in the prior art: one is a dumbbell with fixed weight, and the other is a dumbbell with adjustable weight; when the dumbbell with the fixed weight is used, a set of dumbbells with different weight specifications needs to be prepared to meet the requirements of a trainer, and the weight can be changed only by frequently disassembling and replacing dumbbell pieces, so that the dumbbell is very troublesome to use; the latter can be adjusted to the preferences of the sports trainers due to the weight.

In the prior art, a dumbbell is provided, wherein a plurality of dumbbell pieces are arranged at two ends of a dumbbell rod and are fixed through bolts and nuts. The user can dismantle the dumbbell piece as required, and its troublesome poeration need be with the help of instruments such as spanner, be not convenient for use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a dumbbell and a placing seat for placing the dumbbell are provided.

The utility model is realized in such a way, the dumbbell is provided, which comprises a holding rod and dumbbell heads axially connected with both ends of the holding rod, wherein the dumbbell heads are respectively formed by axially and sequentially superposing a plurality of dumbbell pieces, the holding rod comprises a connecting sleeve and two telescopic rods positioned in the connecting sleeve, and each telescopic rod synchronously extends and retracts along the axial direction of the connecting sleeve; the adjacent dumbbell pieces are axially locked, and the telescopic rod penetrates through the axial direction of each dumbbell piece to achieve the radial positioning of each dumbbell piece; the dumbbell sheet at the innermost side is fixedly connected with the two ends of the connecting sleeve; one end of the connecting sleeve is provided with a telescopic driving component for controlling the distance between the extension of the telescopic rods at the two ends and the outside of the connecting sleeve.

Furthermore, the radial upper side of the axially outer end of each dumbbell piece is provided with an outer convex edge, the radial lower side of each dumbbell piece is provided with an outer groove, the radial upper side of the axially inner end of each dumbbell piece is provided with an inner groove, the radial lower side of each dumbbell piece is provided with an inner convex edge, the outer convex edge of one dumbbell piece is matched and connected with the inner groove of the adjacent outer dumbbell piece, and the outer groove of one dumbbell piece is matched and connected with the inner convex edge of the adjacent outer dumbbell piece.

Furthermore, the telescopic rods at two sides are both racks at one end positioned in the connecting sleeve, connecting columns axially connected with the dumbbell head are respectively arranged at one end of the telescopic rods extending out of the connecting sleeve, an inner tooth surface is arranged on the radial inner side of each rack, an outer tooth surface is arranged on the radial outer side of each rack, the inner tooth surfaces of the two racks are opposite, intermediate gears are arranged between the racks, and the inner tooth surfaces of the two racks are respectively meshed with the intermediate gears; one end of the connecting sleeve is in transmission connection with the outer tooth surface of the rack on one side through the telescopic driving assembly.

Furthermore, the telescopic driving assembly comprises a knob, a driving gear, a driven gear and a driving gear, two ends of the connecting sleeve are respectively and fixedly connected with a connecting cover, and dumbbell pieces on the innermost sides of the dumbbell heads on the two sides are respectively and fixedly connected with the connecting covers; the axial direction of the knob is fixedly connected with the axial direction of the driving gear through the rotating shaft, the driving gear is in meshed transmission connection with the driven gear, the axial direction of the driven gear is fixedly connected with the axial direction of the driving gear through the rotating shaft, and the driving gear is in meshed transmission connection with the external tooth surface of the rack on the side to which the driving gear belongs.

Furthermore, the middle parts of the rotary shaft and the rotary shaft are respectively connected with the inner side of the connecting cover through connecting pieces, the knob is positioned on the upper side of the outer part of the connecting cover on one side, and the upper end of the rotary shaft penetrates through the connecting cover to be connected with the center of the knob.

Furthermore, the dumbbell pieces at the innermost side of the dumbbell heads at the two sides are radially provided with a plurality of screw holes which are axially communicated, and the screw holes are fixedly connected with the peripheral side of the connecting cover through screws.

Furthermore, a holding sleeve with two ends respectively connected with the connecting cover is sleeved on the connecting sleeve.

Furthermore, guide blocks are fixedly connected in the connecting covers at two sides, guide grooves are respectively formed in the racks extending out of the connecting sleeves at two sides, and the guide blocks are connected with the guide grooves in a guiding mode.

The utility model provides a be used for placing seat of placing of dumbbell, includes two connecting pipes and connects respectively in the connecting seat at connecting pipe both ends, and two mutual parallel distribution of connecting pipe and level are placed, and the upside both ends of two connecting pipes are arranged respectively in to the dumbbell head at holding rod both ends.

Compared with the prior art, the utility model discloses dumbbell and be used for placing seat of placing this dumbbell, through the extension distance of control connecting sleeve both ends telescopic link, realize constituting the dumbbell piece connection quantity of dumbbell head, and make the drive gear of transmission end rotate through the knob, the outer flank of tooth of rack of affiliated one side is driven by drive gear, make the telescopic link can be along connecting sleeve axial action, by the extension distance of its axial action, control the quantity of required dumbbell piece, the extension distance of telescopic link is longer, the more dumbbell pieces are on the spliced pole of telescopic link, prevent less; in order to ensure that the telescopic actions of the telescopic rods on the two sides are consistent, the inner tooth surfaces of the racks of the two telescopic rods are respectively meshed with the middle gear, so that when the knob rotates, the telescopic actions of the two telescopic rods can be simultaneously controlled; the relationship between the dumbbell pieces is as follows: the outer convex edge of one dumbbell piece is connected with the inner concave groove of the adjacent outer dumbbell piece in a matched mode, the outer groove of one dumbbell piece is connected with the inner convex edge of the adjacent outer dumbbell piece in a matched mode, when the connecting column of the telescopic rod is not inserted into the axial hole of the corresponding dumbbell piece, the dumbbell piece cannot be lifted, namely the inner concave groove and the inner convex edge of the dumbbell piece slip along the outer convex edge and the outer groove of the lifted dumbbell piece, and the rest can be done in the same way; the utility model has the advantages of no need of external tools, convenient and rapid use; the extension distance of the telescopic rod is controlled through a knob to select and match a proper weight configuration; the setting of placing the seat, its aim at is favorable to placing in order of dumbbell piece.

Drawings

FIG. 1 is a schematic view of a dumbbell and a placing seat for placing the dumbbell according to the present invention;

FIG. 2 is a schematic front view of the dumbbell of FIG. 1;

FIG. 3 is a schematic sectional view A-A of FIG. 2;

FIG. 4 is a schematic top view of the dumbbell of FIG. 1;

FIG. 5 is a schematic perspective view of the dumbbell head of FIG. 1;

FIG. 6 is an exploded view of FIG. 5 from the direction B;

FIG. 7 is an exploded view of FIG. 5 from the direction C;

FIG. 8 is a schematic view of the connection between the connection sleeve and the telescopic rod and the telescopic driving assembly of the dumbbell shown in FIG. 1;

fig. 9 is a schematic view 2 illustrating the connection between the connection sleeve and the telescopic rod and the telescopic driving assembly in the dumbbell shown in fig. 1.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: referring to fig. 1-9, the dumbbell of the present invention includes a holding rod 1 and dumbbell heads 2 connected to two ends of the holding rod 1 in an axial direction, wherein the dumbbell heads 2 are respectively formed by axially and sequentially stacking a plurality of dumbbell pieces 21, the holding rod 1 includes a connecting sleeve 11 and two telescopic rods 12 located in the connecting sleeve 11, and each telescopic rod 12 is respectively and synchronously extended and retracted along the connecting sleeve 11 in the axial direction; the adjacent dumbbell pieces 21 are axially locked, and the radial positioning of each dumbbell piece 21 is achieved by the telescopic rod 12 penetrating through the axial direction of each dumbbell piece 21; the dumbbell sheet 21 at the innermost side is fixedly connected with the two ends of the connecting sleeve 11; one end of the connecting sleeve 11 is provided with a telescopic driving assembly for controlling the distance between the extension of the telescopic rods at the two ends and the outside of the connecting sleeve 11, and the extension distance of the telescopic rods 12 at the two ends is controlled by the telescopic driving assembly, so that the connection quantity of the dumbbell pieces 21 forming the dumbbell head 2 is realized. The radial upper side of one end of the axially outer side of each dumbbell sheet 21 is provided with an outer convex edge 211, the radial lower side of the end of the axially outer side of each dumbbell sheet 21 is provided with an outer groove 212, the radial upper side of one end of the axially inner side of each dumbbell sheet 21 is provided with an inner groove 213, the radial lower side of the end of each dumbbell sheet 21 is provided with an inner convex edge 214, the outer convex edge 211 of one dumbbell sheet 21 is connected with the inner groove 213 of the adjacent outer dumbbell sheet 21 in a matched mode, and the outer groove 212 of one dumbbell sheet 21 is connected with the inner convex edge 214 of the adjacent outer.

One end of each of the two telescopic rods 12 at the two sides, which is positioned in the connecting sleeve 11, is a rack 121, one end of each of the two telescopic rods, which extends out of the connecting sleeve 11, is provided with a connecting column 122 axially connected with the dumbbell head 2, the radial inner side of each rack 121 is provided with an inner tooth surface 123, the radial outer side of each rack 121 is provided with an outer tooth surface 124, the inner tooth surfaces of the two racks 121 are opposite, an intermediate gear 3 is arranged between the two racks, and the inner tooth surfaces 123 of the two racks 121 are; one end of the connecting sleeve 11 is in transmission connection with the external tooth surface 124 of the one side rack 121 through a telescopic driving assembly, and the external tooth surface 124 of the one side rack 121 is driven to reciprocate along the axial direction of the connecting sleeve 11, and the internal tooth surface 123 of the other side rack 121 is driven by the intermediate gear 3, so that the other side rack 121 also reciprocates along the axial direction of the connecting sleeve 11.

The telescopic driving assembly comprises a knob 41, a driving gear 42, a driven gear 43 and a driving gear 44, two ends of the connecting sleeve 11 are respectively and fixedly connected with a connecting cover 5, and the dumbbell plates 21 at the innermost sides of the dumbbell heads 2 at two sides are respectively and fixedly connected with the connecting covers 5; the axial direction of the knob 41 is fixedly connected with the driving gear 42 in the axial direction through the rotating shaft 45, the driving gear 42 is in meshed transmission connection with the driven gear 43, the axial direction of the driven gear 43 is fixedly connected with the driving gear 44 in the axial direction through the rotating shaft 46, and the driving gear 44 is in meshed transmission connection with the external tooth surface 124 of the rack 121 on the corresponding side. The middle parts of the rotating shaft 45 and the rotating shaft 46 are respectively connected with the inner side of the connecting cover 5 through a connecting piece 47, the knob 41 is positioned on the upper side of the outer part of the connecting cover 5 on one side, and the upper end of the rotating shaft 45 penetrates through the connecting cover 5 to be connected with the center of the knob 41. The dumbbell pieces 21 at the innermost sides of the dumbbell heads 2 at the two sides are radially provided with a plurality of screw holes 215 which are axially communicated, and the screw passes through the screw holes 215 to be fixedly connected with the peripheral side of the connecting cover 5. The connecting sleeve 11 is sleeved with a holding sleeve 10, and two ends of the holding sleeve are respectively connected with the connecting cover 5. The connecting cover 5 on two sides is internally and fixedly connected with a guide block 8, the racks 121 extending out of the connecting sleeve 11 on two sides are respectively provided with a guide groove 9, and the guide block 8 is in guide connection with the guide grooves 9.

Example 2: as shown with reference to fig. 1-4. The utility model provides a be used for placing seat of placing of dumbbell, includes two connecting pipes 6 and connects respectively in the connecting seat 7 at connecting pipe 6 both ends, and two mutual parallel distribution of connecting pipe 6 and level are placed, and the upside both ends of two connecting pipes 6 are arranged respectively in to the dumbbell head 2 at 1 both ends of holding rod.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A dumbbell comprises a holding rod (1) and dumbbell heads (2) connected to two ends of the holding rod (1) in an axial connection mode, and is characterized in that the dumbbell heads (2) are respectively formed by axially and sequentially overlapping a plurality of dumbbell sheets (21), the holding rod (1) comprises a connecting sleeve (11) and two telescopic rods (12) located in the connecting sleeve (11), and the telescopic rods (12) respectively extend and retract synchronously along the axial direction of the connecting sleeve (11); the adjacent dumbbell pieces (21) are axially locked, and the telescopic rod (12) penetrates through the axial direction of each dumbbell piece (21) to achieve the radial positioning of each dumbbell piece (21); the dumbbell sheet (21) at the innermost side is fixedly connected with the two ends of the connecting sleeve (11); one end of the connecting sleeve (11) is provided with a telescopic driving component for controlling the distance between the extension of the telescopic rods at the two ends and the outside of the connecting sleeve (11).

2. A dumbbell according to claim 1, characterized in that the radially upper side of the axially outer end of each dumbbell plate (21) is provided with an outer rim (211) and its radially lower side is provided with an outer groove (212), the radially upper side of the axially inner end of each dumbbell plate (21) is provided with an inner groove (213) and its radially lower side is provided with an inner rim (214), the outer rim (211) of one dumbbell plate (21) is in mating connection with the inner groove (213) of the adjacent outer dumbbell plate (21), and the outer groove (212) of one dumbbell plate (21) is in mating connection with the inner rim (214) of the adjacent outer dumbbell plate (21).

3. The dumbbell according to claim 1, characterized in that the telescopic rods (12) on both sides are provided with racks (121) at the inner ends of the connecting sleeves (11), the connecting columns (122) axially connected with the dumbbell head (2) are respectively arranged at the ends extending out of the connecting sleeves (11), the inner side of each rack (121) is provided with an inner tooth surface (123), the outer side of each rack is provided with an outer tooth surface (124), the inner tooth surfaces of the two racks (121) are opposite, a middle gear (3) is arranged between the inner tooth surfaces, and the inner tooth surfaces (123) of the two racks (121) are respectively meshed with the middle gear (3); one end of the connecting sleeve (11) is in transmission connection with the external tooth surface (124) of the rack (121) on one side through the telescopic driving component.

4. The dumbbell of claim 3, characterized in that the telescopic driving assembly comprises a knob (41), a driving gear (42), a driven gear (43) and a driving gear (44), two ends of the connecting sleeve (11) are respectively fixedly connected with a connecting cover (5), and dumbbell sheets (21) at the innermost sides of the dumbbell heads (2) at two sides are respectively fixedly connected with the connecting covers (5); the axial direction of the knob (41) is fixedly connected with the axial direction of the driving gear (42) through a rotating shaft (45), the driving gear (42) is in meshed transmission connection with the driven gear (43), the axial direction of the driven gear (43) is fixedly connected with the axial direction of the driving gear (44) through a rotating shaft (46), and the driving gear (44) is in meshed transmission connection with the external tooth surface (124) of the rack (121) on the side to which the driving gear belongs.

5. The dumbbell of claim 4, wherein the middle parts of the rotary shaft (45) and the rotary shaft (46) are respectively connected with the inner side of the connecting cover (5) through a connecting piece (47), the rotary knob (41) is positioned on the upper outer side of the connecting cover (5) on one side, and the upper end of the rotary shaft (45) penetrates through the connecting cover (5) to be connected with the center of the rotary knob (41).

6. The dumbbell according to claim 4, characterized in that the dumbbell pieces (21) at the innermost of the dumbbell heads (2) at both sides are radially provided with a plurality of screw holes (215) which axially penetrate through, and are fixedly connected with the peripheral side of the connecting cover (5) through screws which penetrate through the screw holes (215).

7. The dumbbell according to claim 4, characterized in that the connecting sleeve (11) is sleeved with a holding sleeve (10) whose two ends are respectively connected with the connecting cover (5).

8. The dumbbell according to claim 4, characterized in that the connecting cover (5) on both sides is fixedly connected with a guide block (8), the racks (121) on both sides extending out of the connecting sleeve (11) are respectively provided with a guide groove (9), and the guide block (8) is connected with the guide groove (9) in a guiding manner.

9. A placing seat for placing the dumbbell according to any one of claims 1 to 8, characterized by comprising two connecting pipes (6) and connecting seats (7) respectively connected to both ends of the connecting pipes (6), wherein the two connecting pipes (6) are distributed in parallel and horizontally placed, and the dumbbell heads (2) at both ends of the holding rod (1) are respectively placed at both ends of the upper side of the two connecting pipes (6).