CN215995516U

CN215995516U - Shank stretching device for body-building

Info

Publication number: CN215995516U
Application number: CN202122151093.6U
Authority: CN
Inventors: 丁薇; 张宝峰
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-11
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a shank stretching device for body-building, the on-line screen storage device comprises a base, the montant, the single pole, height control portion, put the shank, the position fixed part, be provided with a pair of montant on the base perpendicularly, correspond respectively on a pair of montant opposite flank and seted up a first spout, all rotate in every first spout and be provided with a screw rod, the central point that the both ends of single pole were provided with a first slider and first slider respectively puts the department and has seted up a screw hole along the screw rod axial, the single pole passes through screw rod and screw hole threaded connection in order to set up between a pair of montant, still be provided with height control portion between a pair of montant, height control portion is connected with the screw rod drive and makes the single pole rise or reduce for the base with the drive screw rod rotation, the shank slides and sets up on the single pole and is provided with the position fixed part between the two. The utility model discloses can adjust not stretching device of co-altitude to satisfy the tensile demand of different people, different periods, different tensile objects, further optimize the structure that the position was put to the shank simultaneously, in order to improve the comfort level.

Description

Shank stretching device for body-building

Technical Field

The utility model relates to the technical field of fitness equipment, concretely relates to shank stretching device for body-building.

Background

Along with the improvement of modern quality of life, people also focus on physical and mental health more, and people are more and more interested in physical training, and stretching exercises are the motion that many people prefer in physical training, and stretching exercises can make people's health become pliable and tough and stretching, can let the muscle of taking exercise feel stiff and spasm in physical training, and stretching exercises just can help muscle to slow down stiff and spasm.

The requirements for stretching in different periods are different, the requirements for stretching of different people are different, and the requirements for stretching objects of each person, namely the left leg and the right leg, are different. The leg stretching apparatus in the prior art generally adopts a single rod, namely, a user places legs on the single rod, but the single rods with the same height obviously cannot meet the stretching requirements of different people and the stretching requirements of the same user in different periods, and if the single rods with the same height are continuously used for stretching, the stretching effect is necessarily greatly reduced. And a plurality of single rods with different heights are arranged in one place, so that a large area of field can be occupied, and the field is wasted.

Therefore, a stretching device with different heights can be designed, so that the stretching requirements of different people, different periods and different stretching objects can be met, and meanwhile, the structure of the leg placing position is further optimized, so that the comfort level is improved, and the use body feeling of a user is improved.

Disclosure of Invention

In view of the above, the present invention provides a leg stretching device for exercise to solve the problems in the prior art.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a leg stretching device for body building, which comprises a base, a vertical rod, a single rod, a height adjusting part, a leg placing part and a position fixing part, a pair of vertical rods are vertically arranged on the base, first sliding grooves are respectively and correspondingly arranged on the opposite side surfaces of the vertical rods, a screw rod with the axis vertical to the base is rotatably arranged in each first sliding groove, two ends of the single rod are respectively provided with a first sliding block, the central position of the first sliding block is provided with a threaded hole along the axial direction of the screw rod, the single rod is in threaded connection with the threaded hole through the screw rod to be arranged between the pair of vertical rods, the height adjusting part is also arranged between the pair of vertical rods, the height adjusting part is in driving connection with the screw rod to drive the screw rod to rotate so as to enable the single rod to be lifted or lowered relative to the base, the leg placing part is arranged on the single rod in a sliding mode, and the position fixing part is arranged between the leg placing part and the single rod.

Preferably, the height adjusting part comprises a driving bevel gear, a driven bevel gear, an installation shaft and a handle, wherein each screw rod is close to one end of the base and fixedly sleeved with the driven bevel gear, the position of the driven bevel gear is respectively penetrated and arranged by the side wall of the first sliding groove, the installation shaft is located at the end of the inside of the first sliding groove and fixedly arranged with the driving bevel gear, the installation shaft is located at the end of the outside of the first sliding groove and fixedly arranged with the handle, and the driving bevel gear is meshed with the driven bevel gear to form a bevel gear set.

Preferably, the installation axle is located the outside tip department of first spout still fixedly connected with connecting rod, the cover is equipped with a band pulley on the connecting rod, the transmission is connected with a belt between the band pulley, the side of montant corresponds the belt the position department of band pulley is provided with a guard plate, the belt with establish in the band pulley with in the guard plate, the connecting rod not with the fixed one end of installation axle is worn to establish through the guard plate and with handle fixed connection.

Preferably, a second sliding groove is formed in any one side face of the single rod along the length direction of the single rod, the leg placing portion is obliquely arranged on the single rod, the bottom face of the leg placing portion faces the side face of the second sliding groove, a second sliding block extends to be arranged on the side face of the second sliding groove, and the leg placing portion is embedded into the second sliding groove through the second sliding block to be arranged on the single rod in a sliding mode.

Preferably, an included angle is formed between the leg placing part and the second sliding block, and a first spring is further connected between the leg placing part and the second sliding block.

Preferably, the position fixing portion comprises a plurality of position fixing points, the position fixing points are uniformly arranged at the bottom of the second sliding groove in an array mode and comprise positioning grooves, fixing clamping blocks and second springs, the positioning grooves are uniformly and concavely arranged at the bottom of the second sliding groove, the fixing clamping blocks are arranged at the positioning grooves, the tops of the fixing clamping blocks protrude out of the bottom of the second sliding groove, and the second springs are further connected between the bottoms of the fixing clamping blocks and the bottom of the positioning grooves.

Preferably, the top of the fixed clamping block is arc-shaped, an arc-shaped clamping position is concavely arranged on the side surface of the second sliding block, which is in contact with the bottom of the second sliding groove, corresponding to the top of the fixed clamping block, and when the second sliding block moves to any one of the position fixing points, the fixed clamping block in the position fixing point is embedded into the arc-shaped clamping position under the action of the second spring so as to limit the second sliding block to move in the second sliding groove.

Preferably, the leg rest comprises a leg rest plate and an ankle protection plate, the leg rest plate is obliquely arranged on the single rod, the bottom surface of the leg rest plate extends to form the second sliding block, the surface of the leg rest plate is concavely provided with an arc-shaped leg rest groove corresponding to the shape of the legs of the human body, and the top of the leg rest plate also extends to form the arc-shaped ankle protection plate.

Compared with the prior art, the utility model provides a pair of shank stretching device for body-building through rotating arbitrary one handle to drive two screw rods at first spout internal rotations, thereby make the single pole can follow the screw rod axial and reciprocate, thereby make the highly flexible of single pole adjustable in order to satisfy the tensile demand of various differences, the position of putting the leg board can correspond the tensile demand of adjusting and fixed different angles of further having satisfied the shank. Meanwhile, an ankle protection plate is arranged at the top of the leg rest plate to prevent the leg rest plate from scratching the ankle and the heel or scraping shoes off.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a first perspective structure of a leg stretching device for exercise according to the present invention;

FIG. 2 is an enlarged view of the structure of part A in FIG. 1;

fig. 3 is a schematic view of a second perspective structure of the leg stretching device for exercise provided by the present invention;

FIG. 4 is an enlarged view of the structure of part B in FIG. 3;

FIG. 5 is an enlarged view of the structure of the portion C in FIG. 3;

fig. 6 is a schematic structural view of a position fixing point in the leg stretching device for exercise according to the present invention.

Reference numerals and component parts description referred to in the drawings:

1. a base; 2. a vertical rod; 3. a single bar; 4. a first chute; 5. a screw; 6. a first slider; 7. a driving bevel gear; 8. a driven bevel gear; 9. installing a shaft; 10. a handle; 11. a connecting rod; 12. a pulley; 13. a belt; 14. a protection plate; 15. a leg rest plate; 16. an ankle guard; 17. a resting groove; 18. a second chute; 19. a second slider; 20. a first spring; 21. positioning a groove; 22. fixing the fixture block; 23. a second spring.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 6, a leg stretching device for fitness comprises a base 1, a vertical rod 2, a single rod 3, a height adjusting part, a leg placing part and a position fixing part. A pair of vertical rods 2 is vertically arranged on the base 1, and the base 1 and the pair of vertical rods 2 form a base of the whole leg stretching device. A first sliding groove 4 is correspondingly formed in the opposite side faces of the pair of vertical rods 2, a screw rod 5 is arranged in each first sliding groove 4, and the axis of each screw rod 5 is perpendicular to the base 1. Meanwhile, the two ends of the screw rod 5 are respectively connected with the top and the bottom of the first sliding groove 4 through bearings so that the screw rod can rotate relative to the first sliding groove 4, the two ends of the single rod 3 are respectively provided with a first sliding block 6, the central position of the first sliding block 6 is axially provided with a threaded hole along the screw rod 5, and the single rod 3 is in threaded connection with the threaded hole through the screw rod 5 so as to be arranged between the pair of vertical rods 2. The height adjusting part is arranged between the pair of vertical rods 2 and is in driving connection with the screw 5 to drive the screw 5 to rotate, and the screw 5 is in threaded connection with the first slide block 6, so that the rotation of the screw 5 is converted into the reciprocating movement of the first slide block 6 along the axial direction of the screw 5, and the single rod 3 can be lifted or lowered relative to the base 1.

The height adjusting part comprises a driving bevel gear 7, a driven bevel gear 8, an installation shaft 9 and a handle 10. Every screw rod 5 all fixes the cover in the one end department that is close to base 1 and is equipped with driven bevel gear 8, and the position department that the lateral wall of first spout 4 corresponds driven bevel gear 8 runs through respectively and is provided with installation axle 9, and installation axle 9 is located the fixed initiative bevel gear 7 that sets up in the tip department of first spout 4 inside, and initiative bevel gear 7 and driven bevel gear 8 intermeshing are in order to constitute the bevel gear group. Meanwhile, the end part of the mounting shaft 9 located outside the first chute 4 is connected with a connecting rod 11, a belt wheel 12 is sleeved on the connecting rod 11, and a belt 13 is connected between the two belt wheels 12 in a transmission manner to realize linkage.

In order to improve the overall aesthetic appearance of the stretching device, a protective plate 14 is arranged on the side surface of the vertical rod 2 corresponding to the position of the belt 13 and the belt wheel 12, so that the belt 13 and the belt wheel 12 are arranged in the protective plate 14. And the end of the connecting rod 11 which is not fixed with the mounting shaft 9 passes through the protective plate 14 and is fixedly connected with the handle 10. A user only needs to rotate any one of the handles 10, the two belt wheels 12 can rotate together through the transmission of the belt 13, the driving bevel gear 7 rotates through the transmission of the connecting rod 11 and the mounting shaft 9, and the driving bevel gear is reversed through the driven gear transmission 8 meshed with the driving bevel gear to drive the screw rod 5 to rotate, so that the first sliding blocks 6 at the two ends of the single rod 3 move upwards or downwards on the screw rod 5 along the axial direction of the screw rod, the height of the single rod 3 is adjusted, and the stretching height of the leg stretching device is flexibly adjustable.

In order to further improve the comfort of the user, a leg rest is further arranged on the single rod 3 and comprises a leg rest plate 15 and an ankle protection plate 16, an arc-shaped rest groove 17 is concavely arranged on the surface of the leg rest plate 15 corresponding to the shape of the legs of the human body, the top of the leg rest plate 15 is further provided with the arc-shaped ankle protection plate 16 in an extending mode, so that the user can be prevented from directly placing the legs on the single rod 3, and the ankle protection plate 16 can be prevented from scratching the ankles and heels or scraping shoes off the leg rest plate 15.

Meanwhile, the leg placing part can slide to a specified position on the single rod 3 according to different requirements of stretching angles. Specifically, a second sliding groove 18 is formed in any one side surface of the single rod 3 along the length direction of the single rod, the leg placing plate 15 is obliquely arranged on the single rod 3, the bottom surface of the leg placing plate extends towards the side surface of the second sliding groove 18 to be provided with a second sliding block 19, and the leg placing plate 15 is embedded into the second sliding groove 18 through the second sliding block 19 to be arranged on the single rod 3 in a sliding mode. Furthermore, an included angle is formed between the leg rest plate 15 and the second slider 19, and a first spring 20 is connected between the leg rest plate 15 and the second slider 19, so that the leg rest plate 15 can rotate relative to the second slider 19 according to the placing direction of the legs of the user, the leg rest plate 15 is ensured to be consistent with the axial direction of the legs of the user, and the comfort level is improved.

Further, when the leg rest part slides to the designated position, the leg rest part and the single rod 3 are locked at the designated position through the additionally arranged position fixing part, and the leg rest part is prevented from sliding randomly. The position fixing portion includes a plurality of position fixing points uniformly arranged in an array at the bottom of the second chute 18. Each position fixing point comprises a positioning groove 21, a fixing fixture block 22 and a second spring 23, wherein the positioning groove 21 is uniformly recessed at the bottom of the second sliding groove 18, the fixing fixture block 22 is arranged in the positioning groove 21, and the top of the fixing fixture block 22 protrudes out of the bottom of the second sliding groove 18. The top of the fixed block 22 is arc-shaped, and at the same time, the side surface of the second slider 19 contacting the bottom of the second sliding groove 18 is also provided with an arc-shaped retaining position (not shown) corresponding to the top shape of the fixed block 22.

A second spring 23 is further connected between the bottom of the fixed fixture block 22 and the bottom of the positioning slot 21. When the second slide block 19 drives the leg rest plate 15 to move to any one of the position fixing points, i.e. the designated position, the fixing block 22 in the position fixing point is embedded into the arc-shaped block of the second slide block 19 under the action of the second spring 23 to limit the second slide block 19 from driving the leg rest plate 15 to move freely in the second slide groove 18, so that the leg rest plate 15 is locked at the designated position of the single rod 3.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A leg stretching device for fitness is characterized in that: comprises a base, vertical rods, single rods, a height adjusting part, leg placing parts and a position fixing part, wherein a pair of vertical rods are vertically arranged on the base, first sliding grooves are respectively and correspondingly arranged on the opposite side surfaces of the vertical rods, a screw rod with the axis vertical to the base is rotatably arranged in each first sliding groove, two ends of the single rod are respectively provided with a first sliding block, the central position of the first sliding block is provided with a threaded hole along the axial direction of the screw rod, the single rod is in threaded connection with the threaded hole through the screw rod to be arranged between the pair of vertical rods, the height adjusting part is also arranged between the pair of vertical rods, the height adjusting part is in driving connection with the screw rod to drive the screw rod to rotate so as to enable the single rod to be lifted or lowered relative to the base, the leg placing part is arranged on the single rod in a sliding mode, and the position fixing part is arranged between the leg placing part and the single rod.

2. An exercise leg stretching assembly as claimed in claim 1, wherein: height adjustment portion is including initiative umbrella gear, driven umbrella gear, installation axle, handle, every the screw rod is close to the fixed cover in one end department of base is equipped with driven umbrella gear, the lateral wall of first spout corresponds the position department of driven umbrella gear runs through respectively and is provided with the installation axle, the installation axle is located the fixed setting in inside tip department of first spout initiative umbrella gear, the installation axle is located the outside tip department of first spout is fixed with the handle, initiative umbrella gear with driven umbrella gear intermeshing is in order to constitute umbrella gear train.

3. An exercise leg stretching assembly as claimed in claim 2, wherein: the installation axle is located the outside tip department of first spout still fixedly connected with connecting rod, the cover is equipped with a band pulley on the connecting rod, the transmission is connected with a belt between the band pulley, the side of montant corresponds the belt the position department of band pulley is provided with a guard plate, the belt with establish in the band pulley with in the guard plate, the connecting rod not with the fixed one end of installation axle is worn to establish through the guard plate and with handle fixed connection.

4. An exercise leg stretching assembly as claimed in claim 1, wherein: a second sliding groove is formed in any side face of the single rod along the length direction of the single rod, the leg placing portion is obliquely arranged on the single rod and the bottom face of the leg placing portion faces the side face of the second sliding groove in an extending mode, a second sliding block is arranged on the side face of the second sliding groove in an embedded mode, and the leg placing portion is embedded into the second sliding groove and is arranged on the single rod in a sliding mode.

5. An exercise leg stretching device as claimed in claim 4, wherein: an included angle is formed between the leg placing part and the second sliding block, and a first spring is further connected between the leg placing part and the second sliding block.

6. An exercise leg stretching device as claimed in claim 4, wherein: the position fixing part comprises a plurality of position fixing points, the groove bottom of the second sliding groove is uniformly provided with a plurality of position fixing points in an array mode, the position fixing points comprise positioning grooves, fixing fixture blocks and second springs, the positioning grooves are uniformly and concavely arranged at the groove bottom of the second sliding groove, the fixing fixture blocks are arranged at the positioning grooves, the tops of the positioning grooves protrude out of the groove bottom of the second sliding groove, and the bottoms of the fixing fixture blocks are further connected with the groove bottom of the positioning grooves and provided with the second springs.

7. An exercise leg stretching assembly as claimed in claim 6, wherein: the top of the fixed clamping block is arc-shaped, the side face, contacted with the bottom of the second sliding groove, of the second sliding block corresponds to the top of the fixed clamping block, an arc-shaped clamping position is arranged in an inwards concave mode, when the second sliding block moves to any one of the position fixing points, the fixed clamping block in the position fixing point is embedded into the arc-shaped clamping position under the action of the second spring so as to limit the second sliding block to move in the second sliding groove.

8. An exercise leg stretching device as claimed in claim 4, wherein: the leg placing plate is obliquely arranged on the single rod, the bottom surface of the leg placing plate extends to form the second sliding block, the surface of the leg placing plate corresponds to the shape of the legs of a human body, an arc-shaped placing groove is concavely formed in the surface of the leg placing plate, and an arc-shaped ankle protecting plate extends from the top of the leg placing plate.