CN211561718U

CN211561718U - Adjustable weight dumbbell

Info

Publication number: CN211561718U
Application number: CN201922019101.4U
Authority: CN
Inventors: 刘祝如; 洪维钧; 徐斌
Original assignee: Rudong Fengli Machinery Factory Co ltd
Current assignee: Rudong Fengli Machinery Factory Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-25
Anticipated expiration: 2029-11-21

Abstract

The utility model belongs to the technical field of the technique of dumbbell and specifically relates to a can adjust heavy dumbbell is related to, it includes dumbbell rod and connects the dumbbell head at dumbbell rod both ends, the counter weight cavity has been seted up in the dumbbell head, be provided with a plurality of counter weight pieces in the counter weight cavity, overhead articulated chamber lid that has the closed counter weight cavity of dumbbell, be provided with the locking part who is used for locking chamber lid on the lateral wall of dumbbell head. The utility model discloses have nimble adjustment dumbbell weight, make things convenient for the effect that operating personnel used.

Description

Adjustable weight dumbbell

Technical Field

The utility model belongs to the technical field of the technique of dumbbell and specifically relates to an adjustable heavy dumbbell is related to.

Background

Dumbbells are a simple device used for strengthening muscle strength training. Its main material is cast iron, and some of them are covered with a layer of rubber. The muscle training device is used for muscle strength training and muscle compound action training. The dumbbell can be held by hands for patients with low muscle strength caused by paralysis, pain, long-term inactivity and the like, and the weight of the dumbbell can be used for performing resistance active exercise and training the muscle strength.

The chinese patent with publication number CN202777589U discloses a dumbbell, including dumbbell ball, dumbbell bar, grab handle, water-fast abrasive paper, stopper, be equipped with the shrinkage pool on the dumbbell ball, the shrinkage pool is the platform form, dumbbell bar both ends are equipped with the recess, the recess is the column, be equipped with the stopper in the recess, the stopper front end is the platform form, the rear end is the column, the platform column structure of stopper front end suits with the platform column structure of shrinkage pool, the column structure of stopper rear end suits with the column structure in the recess, the dumbbell ball with the dumbbell bar passes through the stopper and connects, the dumbbell bar is including the grab handle, the grab handle passes through glass and glues and be connected with water-fast abrasive paper.

The above prior art solutions have the following drawbacks: the weight of the dumbbell is too single, and when users are different, the weight requirement of the users can not be met, and additional storage space is required to be provided for additionally purchasing dumbbell balls or other dumbbells with different weights in order to increase or reduce the weight of the dumbbell.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adjustable heavy dumbbell has nimble adjustment dumbbell weight, makes things convenient for the effect that operating personnel used.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an adjustable heavy dumbbell, includes dumbbell rod and connects the dumbbell head at dumbbell rod both ends, set up the counter weight cavity in the dumbbell head, be provided with a plurality of counter weight pieces in the counter weight cavity, overhead articulated chamber lid that has the closed counter weight cavity of dumbbell, be provided with the locking part who is used for locking the chamber lid on the lateral wall of dumbbell head.

By adopting the technical scheme, when the weight of the dumbbell head needs to be adjusted, an operator can loosen the locking component from the dumbbell head, then open the cavity cover and fill or take out part of the weight plate, and similarly perform the same operation on the other dumbbell head to achieve the balance of two ends of the dumbbell rod, so that the weight adjustment of the dumbbell head is completed, the cavity cover is covered and the cavity cover is locked by the locking component, thereby being beneficial to flexibly adjusting the weight of the dumbbell and facilitating the use of the operator.

The utility model discloses further set up to: the locking component comprises a screwing screw, one end of the cavity cover is hinged between two opposite side walls of the balance weight cavity, an inserting block is arranged on the surface, facing the balance weight cavity, of the other end of the cavity cover, an elongated slot for the inserting block to insert is formed in the dumbbell head, a threaded hole for the screwing screw to insert is formed in one end, located at the elongated slot, of the side face of the dumbbell head, a block hole for the screwing screw to penetrate is formed in the inserting block, and a screwing screw hole for the screwing screw to penetrate is formed in the side wall, opposite to the threaded hole, of the dumbbell head.

By adopting the technical scheme, after the operator adjusts the number of the counterweight plates in the counterweight cavity, the cavity cover is covered and the splicing block is inserted into the long groove, then the screwing screw is screwed into the threaded hole and penetrates through the block hole, and finally the end, far away from the threaded hole, of the screwing screw is screwed into the screwing screw hole and screwed, so that the cavity cover is fixed, the cavity cover is favorably and quickly opened or closed, and the efficiency of adjusting the number of the counterweight plates in the counterweight cavity by the operator is improved.

The utility model discloses further set up to: the pair of dumbbell heads are provided with sleeves on opposite surfaces, inner cylinder walls of the sleeves are provided with internal threads, two end portions of the dumbbell rod are provided with external threads matched with the internal threads, the dumbbell rod is provided with a through cavity along the axial center, and a plurality of filling blocks are arranged in the through cavity.

Through adopting above-mentioned technical scheme, when the weight of needs adjustment dumbbell rod, operating personnel can adjust the quantity that leads to the intracavity filling piece, and then connects a pair of dumbbell head on the external screw thread at dumbbell rod both ends through the internal thread of sleeve inner tube wall soon respectively to seal the both ends of dumbbell rod, make the filling piece by a pair of dumbbell head centre gripping in leading to the intracavity, be favorable to increasing the whole adjustable heavy scope of dumbbell, improve the flexibility of the whole weight of adjustment dumbbell.

The utility model discloses further set up to: the sleeve is internally provided with a supporting plate parallel to the bottom wall of the sleeve, a spring is arranged between the supporting plate and the inner bottom wall of the sleeve, one end of the spring is fixedly connected with the inner bottom wall of the sleeve, and the other end of the spring is fixedly connected with the supporting plate.

By adopting the technical scheme, when part of the filling blocks are filled in the through cavity, the two ends of the dumbbell rod are respectively screwed with the dumbbell heads, the abutting plates abut against the filling blocks in the through cavity by means of abutting force of the springs, and the plurality of filling blocks are abutted between the abutting plates at the two ends of the dumbbell rod, so that the phenomenon that the filling blocks move in the dumbbell rod to impact the inner bottom wall of the sleeve is reduced, and damage caused by rigid collision of the filling blocks and the sleeve is reduced.

The utility model discloses further set up to: the inner wall of the cavity is provided with a jacking pad.

Through adopting above-mentioned technical scheme, when operating personnel adds the counter weight piece in the counter weight cavity, the tight counter weight piece of tight pad clamp in top plays the positioning action to the counter weight piece, and the tight pad in top is favorable to avoiding the direct friction of counter weight piece and counter weight cavity inner wall simultaneously, reduces the wearing and tearing of counter weight piece.

The utility model discloses further set up to: the outer side of the dumbbell head is wrapped with a protective sleeve.

By adopting the technical scheme, when the dumbbell is used and the dumbbell head is placed on the ground, the outer side wall of the dumbbell head is sheathed by the protective sleeve, so that the direct friction between the outer side wall of the dumbbell head and the ground and other contacts is avoided, the abrasion of the dumbbell head is reduced, and the protection of the dumbbell head is improved.

The utility model discloses further set up to: the dumbbell rod is sleeved with a rubber sheath.

Through adopting above-mentioned technical scheme, in the use dumbbell process, direct and operating personnel's hand contact by the rubber wrap when operating personnel gripping dumbbell rod, and the rubber wrap has and does benefit to the frictional force that increases operating personnel palm gripping dumbbell rod, also reduces the wearing and tearing of operating personnel palm in the use simultaneously, improves the travelling comfort that the dumbbell rod used.

The utility model discloses further set up to: the rubber packing sleeve is provided with a plurality of anti-slip stripes.

By adopting the technical scheme, when an operator grips the dumbbell rod, the friction between the palm of the operator and the rubber sheath is further increased by the anti-slip stripes on the rubber sheath, and the stability of gripping the dumbbell rod is improved.

To sum up, the utility model discloses a beneficial technological effect does:

1. an operator loosens the locking component, opens the cavity cover and fills or takes out part of the weight balance pieces, and similarly, the same operation is carried out on the other dumbbell head to balance the two ends of the dumbbell rod, so that the weight of the dumbbell head is adjusted, the weight of the dumbbell is adjusted flexibly, and the operation of the operator is facilitated;

2. an operator can connect a pair of dumbbell heads to the closed through cavities at two ends of the dumbbell rod in a screwing manner by adjusting the number of the filling blocks in the through cavities, so that the range of the adjustable weight of the whole dumbbell can be enlarged, and the flexibility of adjusting the whole weight of the dumbbell can be improved;

3. the abutting plate abuts against the filling block in the through cavity by means of abutting force of the spring, so that the situation that the filling block moves in the dumbbell rod to impact the inner bottom wall of the sleeve is reduced, and damage caused by rigid collision of the filling block and the sleeve is reduced.

Drawings

Fig. 1 is a schematic structural diagram for embodying the whole dumbbell in this embodiment.

Fig. 2 is a partial sectional view for embodying the sleeve, the spring, the resisting plate and the filling block in the present embodiment.

Fig. 3 is a partial sectional view showing a screwing screw, an elongated slot, an insertion block and a block hole, a screw hole and a screwing screw hole in the present embodiment.

In the figure, 1, a dumbbell rod; 11. a cavity is communicated; 12. an external thread; 2. a dumbbell head; 21. a counterweight cavity; 22. a chamber cover; 221. an insertion block; 2211. a block hole; 23. a threaded hole; 24. a long groove; 25. screwing a screw hole; 26. tightly pushing the cushion; 3. screwing the screw tightly; 31. a screw head; 32. a screw; 4. a sleeve; 41. an internal thread; 5. a resisting plate; 51. a spring; 6. rubber sheath; 61. anti-skid stripes; 7. a protective sleeve; 8. a weight plate; 9. and filling the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the dumbbell with adjustable weight disclosed by the present invention, comprising a dumbbell rod 1 and dumbbell heads 2 connected to two ends of the dumbbell rod 1, wherein a weight cavity 21 is provided in the dumbbell head 2, a cavity cover 22 for closing the weight cavity 21 is hinged between two inner side walls of the weight cavity 21 on a side arc surface of the dumbbell head 2, the shape of the cavity cover 22 is matched with the arc surface of the dumbbell head 2, a locking component is provided on the side wall of the dumbbell head 2, the cavity cover 22 is fixed on the dumbbell head 2 through the locking component, a tightening pad 26 is provided on the inner side wall of the weight cavity 21, the tightening pad 26 is preferably made of rubber material, a plurality of weight plates 8 matched with the inner cavity wall of the weight cavity 21 are provided in the weight cavity 21, the tightening pad 26 clamps the weight plate 8, plays a positioning role for the weight plate 8, and the tightening pad 26 is favorable for avoiding direct friction between the weight plate 8 and the inner wall of the weight cavity 21, the abrasion of the weight plate 8 is reduced; when the weight of the dumbbell head 2 needs to be adjusted, an operator loosens the locking component from the side wall of the dumbbell head 2, then opens the cavity cover 22 and fills or takes out part of the weight balance sheet 8, the same operation is carried out on the other dumbbell head 2 in the same way to balance the weights of the two ends of the dumbbell rod 1, the cavity cover 22 is covered, and the cavity cover 22 is locked through the locking component, so that the weight adjustment of the dumbbell head 2 is completed, the weight of the dumbbell is flexibly adjusted, and the dumbbell is convenient for the operator to use.

Referring to fig. 1 and 3, the locking component includes a screwing screw 3, the screwing screw 3 includes two parts, namely a screw head 31 and a screw rod 32, one arc end of the cavity cover 22 is hinged to two opposite side walls of the counterweight cavity 21, an insertion block 221 with the same width as the cavity cover 22 is fixed on the surface of the other arc end of the cavity cover 22 facing the counterweight cavity 21, a long groove 24 for inserting the insertion block 221 is correspondingly formed on the dumbbell head 2, a threaded hole 23 for screwing the screw rod 32 into the long groove 24 is formed in one end, located on the long groove 24, of the outer side wall of the dumbbell head 2, a block hole 2211 for penetrating the screw rod 32 is correspondingly formed in the insertion block 221, and a screwing screw hole 25 for screwing the screw rod 32 penetrating into the long groove 24 is formed in the inner side wall, opposite to the threaded hole; after the operator adjusts the number of the weight plates 8 in the weight cavity 21, the cavity cover 22 is covered and the inserting block 221 is inserted into the long groove 24, the screw head 31 is rotated to screw the screw rod 32 into the threaded hole 23 and pass through the block hole 2211, and one end of the screw rod 32 far away from the threaded hole 23 is screwed into the screwing screw hole 25 and screwed, so that the inserting block 221 is locked and the cavity cover 22 is fixed, the cavity cover 22 is opened or closed quickly and the cavity cover 22 is fixed, and the efficiency of the operator in adjusting the number of the weight plates 8 in the weight cavity 21 is improved.

Referring to fig. 2, sleeves 4 are symmetrically arranged on opposite surfaces of a pair of dumbbell heads 2, outer rod walls at two end portions of a dumbbell rod 1 are respectively provided with an external thread 12, inner cylinder walls of the sleeves 4 are provided with internal threads 41 which are screwed with the external threads 12, the dumbbell rod 1 is provided with a through cavity 11 along an axial center, the through cavity 11 is filled with a plurality of filling blocks 9, a supporting plate 5 which is used for supporting the filling blocks 9 is arranged in the sleeve 4, the supporting plate 5 is connected with an inner bottom wall of the sleeve 4 through a spring 51, when the weight of the dumbbell rod 1 needs to be adjusted, an operator can adjust the number of the filling blocks 9 in the through cavity 11, the pair of dumbbell heads 2 are respectively screwed on the external threads 12 at two ends of the dumbbell rod 1 through the internal threads 41 on the inner cylinder walls of the sleeves 4, so as to seal the two ends of the dumbbell rod 1, which is beneficial to increase the range of the overall adjustable weight of the dumbbell, improve the flexibility of adjusting the overall weight of the dumbbell, the supporting plate 5 supports, the plurality of filling blocks 9 are tightly abutted by the abutting plates 5 at the two ends of the dumbbell rod 1, so that the situation that the filling blocks 9 impact the inner bottom wall of the sleeve 4 due to play in the dumbbell rod 1 is reduced, and the damage caused by rigid collision of the filling blocks 9 and the sleeve 4 is reduced.

Referring to fig. 1, a layer of rubber wrap 6 is sleeved on a dumbbell rod 1 (refer to fig. 2), two ends of the rubber wrap 6 are respectively attached to opposite side walls of two dumbbell heads 2, a plurality of anti-skid stripes 61 are arranged on the rubber wrap 6 along the axial direction of the rubber wrap 6, and the anti-skid stripes 61 are uniformly arrayed along the circumferential direction of the dumbbell rod 1; in the dumbbell using process, when an operator grabs the dumbbell rod 1, the rubber sheath 6 directly contacts with the hand of the operator, the rubber sheath 6 is beneficial to increasing the friction force of the palm of the operator for grabbing the dumbbell rod 1, meanwhile, the abrasion of the palm of the operator in the using process is reduced, the comfort of the dumbbell rod 1 is improved, the anti-skid stripes 61 on the rubber sheath 6 further increase the friction between the palm of the operator and the rubber sheath 6, and the stability of grabbing the dumbbell rod 1 is improved.

Referring to fig. 1, a protective sleeve 7 is wrapped on the outer side of the dumbbell head 2, and the protective sleeve 7 is preferably made of rubber; when the dumbbell is used and the dumbbell head 2 is placed on the ground, the outer side wall of the dumbbell head 2 is sheathed by the protective sleeve 7, so that the outer side wall of the dumbbell head 2 is prevented from directly rubbing with contacts such as the ground, the abrasion of the dumbbell head 2 is reduced, and the protection of the dumbbell head 2 is improved.

The implementation principle of the embodiment is as follows: an operator opens the cavity cover 22 by unscrewing the screwing screw 3, adjusts the number of the weight plates 8 in the weight cavity 21, further closes the cavity cover 22 and screws the screwing screw 3 tightly, one dumbbell head 2 is screwed to one end of the dumbbell rod 1 through the sleeve 4, the number of the filling blocks 9 in the through cavity 11 is adjusted from the other end of the dumbbell rod 1 so as to adjust the whole weight, and then the other dumbbell head 2 is screwed to the sleeve 4, so that the dumbbell with the adjusted weight is used.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An adjustable weight dumbbell, which is characterized in that: the dumbbell rod comprises a dumbbell rod (1) and dumbbell heads (2) connected to two ends of the dumbbell rod (1), wherein a counterweight cavity (21) is formed in each dumbbell head (2), a plurality of counterweight sheets (8) are arranged in each counterweight cavity (21), cavity covers (22) for sealing the counterweight cavities (21) are hinged to the dumbbell heads (2), and locking parts for locking the cavity covers (22) are arranged on the side walls of the dumbbell heads (2).

2. An adjustable weight dumbbell as claimed in claim 1, wherein: the locking component comprises a screwing screw (3), one end of the cavity cover (22) is hinged between two opposite side walls of the counterweight cavity (21), an inserting block (221) is arranged on the surface, facing the counterweight cavity (21), of the other end of the cavity cover (22), an elongated slot (24) for inserting the inserting block (221) is formed in the dumbbell head (2), a threaded hole (23) for screwing the screwing screw (3) is formed in one end, located on the elongated slot (24), of the side face of the dumbbell head (2), a block hole (2211) for the screwing screw (3) to penetrate is formed in the inserting block (221), and a screwing screw hole (25) for screwing the screwing screw (3) to penetrate is formed in the side wall, opposite to the threaded hole (23), of the dumbbell head (2).

3. An adjustable weight dumbbell as claimed in claim 1, wherein: the dumbbell rod is characterized in that a sleeve (4) is arranged on the opposite surface of the dumbbell head (2), an internal thread (41) is arranged on the inner wall of the sleeve (4), external threads (12) matched with the internal thread (41) are arranged at the two end parts of the dumbbell rod (1), a through cavity (11) is formed in the dumbbell rod (1) along the axial center, and a plurality of filling blocks (9) are arranged in the through cavity (11).

4. An adjustable weight dumbbell as claimed in claim 3, wherein: a supporting plate (5) parallel to the bottom wall of the sleeve (4) is arranged in the sleeve (4), a spring (51) is arranged between the supporting plate (5) and the inner bottom wall of the sleeve (4), one end of the spring (51) is fixedly connected with the inner bottom wall of the sleeve (4), and the other end of the spring is fixedly connected with the supporting plate (5).

5. An adjustable weight dumbbell as claimed in claim 1, wherein: and a jacking pad (26) is arranged on the inner wall of the counterweight cavity (21).

6. An adjustable weight dumbbell as claimed in claim 1, wherein: the outer side of the dumbbell head (2) is wrapped with a protective sleeve (7).

7. An adjustable weight dumbbell as claimed in claim 1, wherein: the dumbbell rod (1) is sleeved with a rubber sheath (6).

8. An adjustable weight dumbbell as claimed in claim 7, wherein: the rubber sheath (6) is provided with a plurality of anti-skid stripes (61).