CN111298358B

CN111298358B - Body-building horizontal bar

Info

Publication number: CN111298358B
Application number: CN201911061592.7A
Authority: CN
Inventors: 谢昱顺
Original assignee: 谢昱顺
Current assignee: Wuyi Huayang Industry and Trade Co.,Ltd.
Priority date: 2019-06-14
Filing date: 2019-11-01
Publication date: 2021-09-10
Anticipated expiration: 2039-11-01
Also published as: CN110124248A; CN111298358A; CN211215151U; CN211215150U; CN211215149U; WO2020248594A1; CN110787404A

Abstract

The invention provides a body-building horizontal bar which comprises a main body piece, wherein through holes are formed in two ends of the main body piece, telescopic rods on two sides are inserted into the through holes and can axially move along the through holes, the telescopic rods on the two sides are parallel, the telescopic rods and the main body piece are limited by rotation, contact parts are arranged at two ends of the telescopic rods, a main tooth part and a lead screw are arranged in the main body piece, the main tooth part is connected with an adjusting part, a slotted hole is formed in the main body piece, the adjusting part is exposed out of the slotted hole, the lead screw is parallel to the telescopic rods, a threaded connecting part is arranged on the telescopic rods, the lead screw is in threaded connection with the threaded connecting part, a driven tooth part is connected onto the lead screw, and the driven tooth part and the main tooth part are in one-stage or multi-stage direction-changing transmission. The invention has the advantages that the adjustment is more stable, the self-locking effect is realized under the condition that the adjusting part does not drive to rotate, and the telescopic rod can be stably supported without loosening. It can both ends telescopic link synchronous regulation flexible, and is more laborsaving than the regulation of single-stage formula.

Description

Body-building horizontal bar

Technical Field

The invention relates to the field of fitness equipment, in particular to a fitness horizontal bar.

Background

The pull-up rod is important for everyone, is particularly beneficial to people for long-term fitness, is more and more convenient for people nowadays, can be used for fitness anytime and anywhere, and is generally used in the market at present in a mode of being fixed between door frames or between walls.

For example, patent publication No. CN205699053U discloses an indoor multifunctional horizontal bar, which comprises: intermediate lever, threaded rod, iron bar frame, but 90 rotatory hinges, threaded connection structure, dismounting rod, loose joint, through but 90 rotatory hinges and threaded connection cooperation, intermediate lever and threaded rod make it firm through middle fixed screw and interior nut connection, are the loose joint at both ends, link to each other with the axle of dismantling the change through threaded connection and realize the multi-functional horizontal bar of detachable, accomplish the motion of indoor multi-functional body-building. However, the horizontal bar with the structure is inconvenient to fix between the door frames or between the walls, the horizontal bar is loosened when being fixed between the door frames or between the walls, and a user is injured when falling off during use.

Disclosure of Invention

The invention aims to solve the technical problem of providing a body-building horizontal bar which is more convenient to disassemble and assemble, firmer to fix and safer to use.

The technical scheme adopted by the invention for solving the technical problems is as follows: a body-building horizontal bar which is characterized in that: it comprises a main body part, through holes are arranged at two ends of the main body part, telescopic rods at two sides are inserted into the through holes and can axially move along the through holes,

the telescopic rods on the two sides are parallel, the telescopic rods and the main body piece are limited by rotation, the two ends of the telescopic rods are provided with contact parts,

the main body part is internally provided with a first umbrella and two lead screws which are separated from the middle, each lead screw is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, each lead screw is connected with a telescopic rod, the lead screws are parallel to the telescopic rods, the telescopic rods are provided with threaded connecting parts, the lead screws are in threaded connection with the threaded connecting parts, the first bevel gears and the second bevel gears are in one-stage reversing transmission,

the first bevel gear is connected with the adjusting part, a slotted hole is formed in the main body piece, and the adjusting part is exposed out of the slotted hole.

Furthermore, the axes of the first bevel gear and the second bevel gear are vertical.

Further, lead screw and bushing, the outer wall of axle sleeve pastes on main part inner wall, and threaded connection portion includes the nut on the telescopic link.

Furthermore, a through groove is formed in the main body part, the first bevel gear is inserted into the through groove, the cover is detachably connected to the main body part to cover the through groove, and the groove hole is formed in the cover.

Furthermore, the contact part is provided with a contact surface, the contact surface has a curvature, and the center of the contact surface is sunken.

Further, the telescopic link and the main part piece are limited in rotation, and the telescopic link is provided with a sliding groove, the end part of the main part piece is fixedly connected with a sliding key, and the sliding groove of the telescopic link is in butt joint with the sliding key.

Compared with the prior art, the telescopic rod has the advantages that the adjustment is more stable, the self-locking effect is achieved under the condition that the adjusting part does not drive to rotate, and the telescopic rod can be stably supported without loosening. It can both ends telescopic link synchronous regulation flexible, and is more laborsaving than the regulation of single-stage formula.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the background art and explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial exploded view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at D;

in the figure: 1, a main body piece; 2, telescoping a rod; 3, a limiting sleeve; 4, sliding a key; 5, a chute; 6 a contact portion; 7 contact surface; 8, anti-skid bulges; 9, a screw rod; 10 a first bevel gear; 11 second bevel gear; 12 shaft sleeves; 13 a nut; 14 slotted holes; 16 a hand held rotating member; 18 through grooves; 19 a cover.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in figures 1-5, the horizontal bar for body building comprises a main body part 1, wherein through holes are arranged at two ends of the main body part 1. Preferably, the main body 1 is a tubular structure, the telescopic rods 2 are inserted into the through holes of the main body 1, the telescopic rods 2 on both sides are parallel, and the telescopic rods 2 on both sides can move axially along the through holes when being inserted into the through holes.

The telescopic rod 2 and the main body member 1 are restricted in rotation. Specifically, main part 1 is equipped with bellied feather key 4, is equipped with the spout 5 with feather key 4 looks adaptation on the telescopic link 2, and feather key 4 stretches into in the spout 5 sliding fit. Preferably, the sliding keys 4 are provided at both ends of the body member 1. More preferably, the main body 1 is connected with the position limiting sleeve 3, the position limiting sleeve 3 is provided with an integrally formed sliding key 4 protruding inwards, the position limiting sleeve 3 is fixedly connected with the main body 1, and the position limiting sleeve 3 is arranged at the through hole of the main body 1.

The two ends of the telescopic rod 2 are provided with contact parts 6, the contact parts 6 are provided with contact surfaces 7, the contact surfaces 7 have arc-shaped curvature, the center of the contact surfaces 7 is sunken, the contact surfaces 7 are provided with anti-skid protrusions 8, and the contact surfaces 7 are made of rubber.

Specifically, 2 axial extensions of telescopic link, the contact site 6 of 2 tip of telescopic link are pressed on door frame or wall, and 2 roof pressure contact site 6's of telescopic link center makes sunken contact surface 7 take place to be deformed, increases the friction gradually to the outer fringe from the center of contact surface 7 to produce bigger plane gripping power.

A first bevel gear 10 and a screw rod 9 are arranged in the main body part 1, the middle of the screw rod 9 is cut into two parts, each screw rod 9 is provided with a second bevel gear 11, the screw rod 9 is fixedly connected with the second bevel gears 11, the first bevel gears 10 are meshed with the second bevel gears 11, and each screw rod 9 is connected with a telescopic rod 2.

The screw rod 9 is parallel to the telescopic rod 2, the telescopic rod 2 is provided with a threaded connection part, the screw rod 9 is in threaded connection with the threaded connection part, and preferably, the threaded connection part comprises a nut 13 which is relatively fixed with the telescopic rod 2.

The screw rod 9 is in threaded connection with the threaded connection part on the telescopic rod 2, and the screw rod 9 is rotated to enable the telescopic rod 2 to axially extend and retract. Rotation can be transmitted in a direction change of 90 degrees.

The screw 9 is connected with a shaft sleeve 12, the outer ring of the shaft sleeve 12 is limited on the inner wall of the main body part 1, and the shaft sleeve 12 is positioned at the side part of the second bevel gear 11 and is used for supporting the position of the second bevel gear 11. The nut 13 is screwed on the screw rod 9, the end part of the nut 13 is propped against the telescopic rod 2, and the nut 13 controls the telescopic movement of the telescopic rod 2.

The main body part 1 is provided with a through groove 18, the first umbrella tooth 10 is inserted from the through groove 18 during assembly, the cover 19 is detachably connected on the main body part 1 to cover the through groove 18, the cover 19 is provided with a slotted hole 14, the first umbrella tooth 10 is connected with the adjusting part, and the adjusting part is exposed from the slotted hole 14.

Preferably, the adjustment portion of the first bevel gear 10 may be an adjustment hole. The handheld rotating piece 16 matched with the adjusting part is arranged, the telescopic rod 2 of the horizontal bar can be tightly propped in the door frame or the horizontal bar can be loosened by inserting the handheld rotating piece 16 into the adjusting hole to rotate, and the handheld rotating piece 16 can be taken down when not used.

Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The present invention has been described in detail, and the principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the present invention and the core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A body-building horizontal bar which is characterized in that: it comprises a main body part, through holes are arranged at two ends of the main body part, telescopic rods at two sides are inserted into the through holes and can axially move along the through holes,

the main body part is internally provided with a first bevel gear, two screw rods which are separated from the middle are arranged, each screw rod is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, each screw rod is connected with a telescopic rod, the screw rods are parallel to the telescopic rods, the telescopic rods are provided with threaded connecting parts, the screw rods are in threaded connection with the threaded connecting parts, the first bevel gear and the second bevel gear are in one-stage direction-changing transmission,

2. An exercise bar according to claim 1, wherein: the axes of the first bevel gear and the second bevel gear are vertical.

3. An exercise bar according to claim 1, wherein: the lead screw and bushing, the outer wall subsides of axle sleeve are on main part inner wall, and threaded connection portion includes the nut on the telescopic link.

4. An exercise bar according to any one of claims 1 to 3, wherein: the main body part is provided with a through groove, the first bevel gear is inserted from the through groove, the cover is detachably connected to the main body part to cover the through groove, and the slotted hole is formed in the cover.

5. An exercise bar according to any one of claims 1 to 3, wherein: the contact part is provided with a contact surface, the contact surface has a curvature, and the center of the contact surface is sunken.

6. An exercise bar according to any one of claims 1 to 3, wherein: the telescopic link and the main part rotation limitation are provided with a sliding groove on the telescopic link, a connecting sliding key is fixed at the end of the main part, and the sliding groove of the telescopic link is in butt joint with the sliding key.