CN114569966B - Stretching device for physical training - Google Patents
Stretching device for physical training Download PDFInfo
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- CN114569966B CN114569966B CN202210379651.0A CN202210379651A CN114569966B CN 114569966 B CN114569966 B CN 114569966B CN 202210379651 A CN202210379651 A CN 202210379651A CN 114569966 B CN114569966 B CN 114569966B
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- sleeve
- telescopic
- bevel gear
- box body
- rotating shaft
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
- A63B23/0482—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs primarily by articulating the hip joints
- A63B23/0488—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs primarily by articulating the hip joints by spreading the legs
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention is suitable for the field of physical training devices, and provides a stretching device for physical training, which comprises a cross beam, wherein one end of the cross beam is fixedly connected with a cushion, the other end of the cross beam is provided with a sliding box body, the stretching device also comprises a driving unit and a stretching unit, two sides of the box body in the direction perpendicular to the cross beam are respectively provided with an arc-shaped guide groove, the stretching unit comprises a locking part positioned in the arc-shaped guide groove, a sleeve is fixedly connected in the locking part, a rotating shaft is rotatably connected in the sleeve, one end of the rotating shaft is fixedly provided with a driven bevel gear matched with the driving bevel gear, the stretching device also comprises a second stretching member fixedly connected to the other end of the rotating shaft, the other end of the second stretching member is fixedly provided with a push rod matched and inserted in the sleeve, and a connecting structure is arranged between the push rod and the inner wall of the sleeve. The beneficial effects are as follows: make the open angle of shank variable to tensile different positions, the user can be according to the size of self when the operation, the interval between adjustment cushion and the box guarantees that the shank is put rationally.
Description
Technical Field
The invention belongs to the field of physical training devices, and particularly relates to a stretching device for physical training.
Background
Sports is a complex social culture phenomenon, and achieves the purposes of promoting overall development, improving physical fitness, strengthening physique, improving life style and improving life quality by some professional means depending on physical and intelligence activities.
The amount of exercise of low limbs is great in the sports training in-process, generally can all carry out tensile activity before the training or after the training, mainly can relax muscle and alleviate muscle fatigue to can effectively keep muscle aesthetic feeling, all can adopt the device to assist in the sports training of specialty and go on.
The existing stretching device is only auxiliary to transversely open the legs, can only stretch a part region on the inner side of the thigh, cannot achieve comprehensive stretching of the legs to relieve, and due to the fixed structure, people with different body types cannot well place the legs when stretching, so that the stretching effect can be influenced.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a stretching device for physical training, which aims to solve the above-mentioned problems in the background art.
The embodiment of the invention is realized in such a way that the stretching device for physical training comprises a cross beam, a driving unit and a telescopic unit, wherein one end of the cross beam is fixedly connected with a cushion, and the other end of the cross beam is provided with a sliding box body;
the driving unit comprises a power box arranged on one side, close to the cushion, of the cross beam, the output end of the power box is fixedly connected with a first telescopic piece, the other end of the first telescopic piece is connected with a transmission shaft which is rotatably arranged on the box body, and a driving bevel gear is fixed at one end, located in the box body, of the transmission shaft;
the box body is provided with arc-shaped guide grooves along two sides in the direction vertical to the cross beam, a limiting piece is fixed on the outer side of a driving bevel gear in the box body, the telescopic unit comprises a locking piece positioned in the arc-shaped guide grooves, a sleeve is fixedly connected in the locking piece, one end, close to the box body, in the sleeve is rotatably connected with a rotating shaft, the rotating shaft is clamped in the limiting piece, one end of the rotating shaft is fixedly provided with a driven bevel gear matched with the driving bevel gear, the limiting piece is used for limiting the axial movement of the rotating shaft, so that the driving bevel gear and the driven bevel gear are always kept in a meshed state, the box body further comprises a second telescopic piece fixedly connected to the other end of the rotating shaft, the other end of the second telescopic piece is fixedly provided with a push rod which is matched and inserted in the sleeve, the second telescopic piece is used for enabling the rotating shaft and the push rod to be always kept in a transmission connection state, and a connecting structure which is matched with each other is arranged between the push rod and the inner wall of the sleeve;
the locking piece is used for fixing the sleeve pipe in different positions in the arc-shaped guide groove, when the rotating shaft drives the ejector rod to rotate through the second telescopic piece, the connecting structure enables the ejector rod to axially move in the sleeve pipe, and the other end of the ejector rod is provided with a rotating supporting pad.
Preferably, the connecting structure can adopt a thread structure which is positioned on the surface of the mandril and the inner wall of the sleeve and is matched with the mandril.
Preferably, the connecting structure comprises a spiral groove formed in the inner wall of the sleeve and a clamping block fixed on the side face of the ejector rod, and the clamping block is located in the spiral groove.
Preferably, the second extensible member can adopt the spring telescopic link, it has logical groove to all open between the adjacent thread groove on the intraductal wall of sleeve, leads to the groove both ends and is linked together with the thread groove, and leads to the groove and along sheathed tube axial linearity and distribute, leads to the inslot sliding connection and has the kicking block, sleeve pipe outside side is fixed with the housing, is provided with the driving piece in the housing, and the driving piece is used for driving all kicking blocks and removes in leading to the groove, and when the ejector pin removed to one side of keeping away from the box, the driving piece drove the kicking block and laminates with the ejector pin surface mutually, and when the ejector pin removed to one side of being close to the box, the driving piece drove the kicking block and removes to the outside along sheathed tube radially.
Preferably, the width of the through groove is larger than that of the spiral groove.
Preferably, a telescopic protective sleeve positioned on the outer side of the first telescopic piece is fixedly connected between the power box and the box body.
Preferably, the number of teeth of the drive bevel gear is greater than the number of teeth of the driven bevel gear.
Preferably, the two sides of the arc-shaped guide groove are both provided with a tooth-shaped structure, the locking piece comprises a rotating ring sleeved on the sleeve through threads, one side of the rotating ring is rotatably provided with a tooth-shaped insertion pipe matched with the tooth-shaped structure, and the rotating ring is used for driving the tooth-shaped insertion pipe to move along the axial direction of the sleeve.
Preferably, the support pad is eccentrically disposed relative to the carrier rod.
The stretching device for physical training provided by the embodiment of the invention has the beneficial effects that: (1) when the device is used, the sleeve can be locked at different positions in the arc-shaped guide groove through the locking piece, the rotating shaft cannot lose the meshing transmission state after swinging due to the transmission characteristic of the bevel gear, and the included angle between the telescopic units at two sides can be flexibly adjusted, so that the opening angle of the leg part can be changed, and the leg part can be stretched to different positions;
(2) because box sliding connection is on the crossbeam, consequently the user can be according to the size of self when the operation, the interval between adjustment cushion and the box to guarantee that the shank is put rationally, promote tensile effect.
Drawings
Fig. 1 is a top view of a stretching device for physical training provided in an embodiment of the present invention;
FIG. 2 is a side cross-sectional view of a body frame provided in accordance with an embodiment of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a cross-sectional view of a cannula provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an arc-shaped guide slot according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a locking member according to an embodiment of the present invention;
in the drawings: 1-a cross beam; 2-cushion; 3, a box body; 4-a drive unit; 5-a telescopic unit; 501-a locking element; 502-a cannula; 503-a rotating shaft; 504-driven bevel gear; 505-a second telescoping piece; 5051-spring telescopic rod; 506-a mandril; 6-a power box; 7-a first telescopic member; 8-a transmission shaft; 9-drive bevel gear; 10-arc guide groove; 11-a stop; 1101-a clamping plate; 1102-an arc-shaped clamping groove; 1103-snap ring; 12-a linking structure; 1201-helical groove; 1202-fixture block; 13-a support pad; 14-a turntable; 15-bevel gear set; 16-a telescoping protective sleeve; 17-a through slot; 18-a top block; 19-a housing; 20-a drive member; 21-a tooth-shaped structure; 22-a rotating ring; 23-a toothed cannula.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, 2 and 3, a drawing device for physical training according to an embodiment of the present invention includes:
crossbeam 1, the one end fixedly connected with cushion 2 of crossbeam 1, the other end of crossbeam 1 is provided with gliding box 3, still including drive unit 4 and flexible unit 5.
Drive unit 4 is including setting up headstock 6 that is close to cushion 2 one side on crossbeam 1, the first extensible member 7 of output fixedly connected with of headstock 6, and the other end of first extensible member 7 is connected with rotates the transmission shaft 8 that sets up on box 3, and the one end that lies in box 3 on the transmission shaft 8 is fixed with drive bevel gear 9.
The telescopic unit 5 comprises a locking piece 501 positioned in the arc-shaped guide groove 10, a sleeve 502 is fixedly connected in the locking piece 501, a rotating shaft 503 is rotatably connected at one end, close to the box 3, in the sleeve 502, the rotating shaft 503 is clamped in the limiting piece 11, a driven bevel gear 504 matched with the driving bevel gear 9 is fixed at one end of the rotating shaft 503, the limiting piece 11 is used for limiting the axial movement of the rotating shaft 503, so that the driving bevel gear 9 and the driven bevel gear 504 are always in a meshed state, the telescopic unit further comprises a second telescopic piece 505 fixedly connected at the other end of the rotating shaft 503, a push rod 506 matched and inserted in the sleeve 502 is fixed at the other end of the second telescopic piece 505, the second telescopic piece 505 is used for enabling the rotating shaft 503 and the push rod 506 to be always in a transmission connection state, and a connecting structure 12 matched with each other is arranged between the push rod 506 and the inner wall of the sleeve 502.
The locking member 501 is used to fix the sleeve 502 at different positions in the arc-shaped guide slot 10, so that different included angles are formed between the telescopic units 5 on both sides, when the rotating shaft 503 drives the push rod 506 to rotate through the second telescopic member 505, the connecting structure 12 enables the push rod 506 to move axially in the sleeve 502, and the other end of the push rod 506 is provided with the rotating support pad 13.
In one embodiment of the invention, when the device is used, the sleeve 502 can be locked at different positions in the arc-shaped guide groove 10 through the locking piece 501, the rotating shaft 503 cannot lose a meshing transmission state after swinging due to the transmission characteristic of the bevel gears, the included angle between the telescopic units 5 at two sides can be flexibly adjusted, the opening angle of the leg can be changed, so that the leg can be stretched to different positions, and the box body 3 is slidably connected to the cross beam 1, so that a user can adjust the distance between the cushion 2 and the box body 3 according to the body type of the user during operation, thereby ensuring that the leg is reasonably placed, and improving the stretching effect.
In an example of the present invention, the connecting structure 12 may adopt a thread structure that is located on the surface of the push rod 506 and the inner wall of the sleeve 502 and is matched with each other, when the rotating shaft 503 drives the push rod 506 to rotate through the second expansion member 505, the push rod 506 can be expanded and contracted relative to the sleeve 502 through the thread matching between the push rod 506 and the sleeve 502, so as to push the supporting pad 13 to open, the supporting pad 13 is eccentrically arranged relative to the push rod 506, because the push rod 506 itself rotates, after the supporting pad 13 is eccentrically arranged, and is connected with the push rod 506 in a rotating manner, even if the push rod 506 rotates, the heavier side of the supporting pad 13 is still located below, therefore, when the push rod 506 expands and contracts, the supporting pad 13 itself keeps a stable and non-rotating state, and the number of teeth of the driving bevel gear 9 is greater than that of the driven bevel gear 504, so that the rotating shaft 503 is driven by the transmission shaft 8 more labor-saving.
As shown in fig. 2, as a preferred embodiment of the present invention, a rotary disc 14 is disposed on the power box 6, and the rotary disc 14 drives the first telescopic member 7 to rotate through a bevel gear set 15 located in the power box 6.
In the one kind of the embodiment, when the people sits on cushion 2, rotate through hand control carousel 14 and just can drive flexible unit 5 work on the box 3, first extensible member 7 can adopt the pipe fitting that cup joints each other, can be when box 3 and 6 interval changes of headstock, equally can drive transmission shaft 8 and rotate, and the cross section of pipe fitting is the rectangle, can effectual transmission torsion, fixedly connected with is located the flexible protective sheath 16 in the first extensible member 7 outside between headstock 6 and the box 3, and flexible protective sheath 16 can adopt the rubber material, can be isolated with driven structure and external world, makes its security greatly increased.
As shown in FIG. 3, as a preferred embodiment of the present invention, the connecting structure 12 includes a spiral groove 1201 formed on the inner wall of the sleeve 502, and a latch 1202 fixed to the side of the plunger 506, and the latch 1202 is located in the spiral groove 1201.
In one aspect of this embodiment, when the plunger 506 rotates, the latch 1202 moves in the spiral groove 1201, thereby driving the plunger 506 to move axially within the barrel 502, which is more efficient than the threaded connection mentioned above, and the second telescoping member 505 may also be a socket tubular member with a rectangular cross-section.
As shown in fig. 3, fig. 4 and fig. 5, supplementary description is made on the basis of the above embodiment, the second telescopic member 505 may be a spring telescopic rod, through grooves 17 are formed between adjacent thread grooves on the inner wall of the sleeve 502, two ends of each through groove 17 are communicated with the thread grooves, the through grooves 17 are linearly distributed along the axial direction of the sleeve 502, the through grooves 17 are slidably connected with the ejector blocks 18, a housing 19 is fixed on the outer side surface of the sleeve 502, a driving member 20 is arranged in the housing 19, the driving member 20 is used for driving all the ejector blocks 18 to move in the through grooves 17, when the ejector rod 506 moves to the side far from the box body 3, the driving member 20 drives the ejector blocks 18 to be attached to the surface of the ejector rod 506, and when the ejector rod 506 moves to the side near the box body 3, the driving member 20 drives the ejector blocks 18 to move radially outward along the sleeve 502.
In one case of this embodiment, the width of the through groove 17 is greater than the width of the spiral groove 1201, and although the spiral telescopic manner is stable and reliable in an actual situation, there is a certain defect, the speed cannot be increased during retraction and restoration, and the speed of restoration is slow, so that there may be an overextension need to retract in time in actual use, the driving member 20 may employ an electric telescopic rod, or of course, a hydraulic telescopic rod may also be employed, the driving member 20 can drive the top block 18 to move in the through groove 17, when the plunger 506 moves in an outward direction, the top block 18 will contact with the surface of the plunger 506, so the fixture block 1202 can move along the spiral groove 1201, the movement manner of the structure is relatively conventional, and when the plunger 506 retracts, because the second telescopic member 505 employs a spring telescopic rod to provide a pulling force, at this time, the top block 18 moves in the sleeve 502 in the outward direction, the through groove 17 is exposed and connected with the spiral, so that the plunger 506 moves linearly in the through groove 17 and then enters the spiral groove 1201 from the spiral groove 1202, and the rapid return and the return of the plunger 506 is performed in turn.
As shown in fig. 6 and 7, as a preferred embodiment of the present invention, tooth-shaped structures 21 are disposed on both sides of the arc-shaped guide groove 10, the locking member 501 includes a rotating ring 22 threadedly sleeved on the sleeve 502, a tooth-shaped insertion tube 23 cooperating with the tooth-shaped structures 21 is rotatably disposed on one side of the rotating ring 22, and when the rotating ring 22 rotates, since the rotating ring is threadedly sleeved on the sleeve 502, the rotating ring itself moves along the axial direction of the sleeve 502, so as to drive the tooth-shaped insertion tube 23 to move.
In a case of this embodiment, when the tooth-shaped insertion tube 23 is inserted in the tooth-shaped structure 21 in the arc-shaped guide slot 10 in a matching manner, the position of the sleeve 502 is fixed, as shown in fig. 3, the limiting member 11 includes a clamping plate 1101 fixed to the box 3 and located on two sides of the rotating shaft 503, an arc-shaped clamping slot 1102 is provided between the clamping plates 1101, a rotating snap ring 1103 is provided on the rotating shaft 503, and the snap ring 1103 is engaged with the arc-shaped clamping slot 1102 in a matching manner, so that the driving bevel gear 9 and the driven bevel gear 504 are always in a meshing transmission state, and can be flexibly adjusted when in use, the tooth-shaped insertion tube 23 can be drawn out through the rotating ring 22, and the included angle of the two side telescopic units 5 is changed by changing the position of the sleeve 502.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A stretching device for physical training comprises a cross beam, wherein one end of the cross beam is fixedly connected with a cushion, and the other end of the cross beam is provided with a sliding box body;
the driving unit comprises a power box arranged on one side, close to the cushion, of the cross beam, the output end of the power box is fixedly connected with a first telescopic piece, the other end of the first telescopic piece is connected with a transmission shaft which is rotatably arranged on the box body, and a driving bevel gear is fixed at one end, located in the box body, of the transmission shaft;
the box body is provided with arc-shaped guide grooves along two sides in the direction perpendicular to the cross beam, a limiting part is fixed on the outer side of a driving bevel gear in the box body, the telescopic unit comprises a locking part located in the arc-shaped guide grooves, a sleeve is fixedly connected in the locking part, one end, close to the box body, in the sleeve is rotatably connected with a rotating shaft, the rotating shaft is clamped in the limiting part, one end of the rotating shaft is fixedly provided with a driven bevel gear matched with the driving bevel gear, the limiting part is used for limiting the axial movement of the rotating shaft, so that the driving bevel gear and the driven bevel gear are always kept in a meshed state, the telescopic unit further comprises a second telescopic part fixedly connected to the other end of the rotating shaft, the other end of the second telescopic part is fixedly provided with a push rod which is matched and inserted in the sleeve, the second telescopic part is used for enabling the rotating shaft and the push rod to be always kept in a transmission connection state, and a mutually matched connection structure is arranged between the push rod and the inner wall of the sleeve;
the connecting structure comprises a spiral groove formed in the inner wall of the sleeve and a clamping block fixed on the side face of the ejector rod, the clamping block is located in the spiral groove, the second telescopic part adopts a spring telescopic rod, through grooves are formed between adjacent thread grooves in the inner wall of the sleeve, two ends of each through groove are communicated with the thread grooves, the through grooves are linearly distributed along the axial direction of the sleeve, ejector blocks are connected in the through grooves in a sliding mode, a housing is fixed on the outer side face of the sleeve, a driving part is arranged in the housing and used for driving all the ejector blocks to move in the through grooves, when the ejector rod moves to one side far away from the box body, the driving part drives the ejector blocks to be attached to the surfaces of the ejector rod, when the ejector rod moves to one side close to the box body, the driving part drives the ejector blocks to move outwards in the radial direction of the sleeve, and the width of each through groove is larger than that of the spiral groove;
the locking piece is used for fixing the sleeve at different positions in the arc-shaped guide groove, when the rotating shaft drives the ejector rod to rotate through the second telescopic piece, the connecting structure enables the ejector rod to move axially in the sleeve, and a rotating supporting pad is arranged at the other end of the ejector rod;
both sides of the arc-shaped guide groove are provided with tooth-shaped structures, the locking piece comprises a rotating ring sleeved on the sleeve through threads, one side of the rotating ring is rotatably provided with a tooth-shaped insertion pipe matched with the tooth-shaped structures, and the rotating ring is used for driving the tooth-shaped insertion pipe to move along the axial direction of the sleeve.
2. The stretching apparatus for physical training as claimed in claim 1, wherein said connecting means is a screw structure formed on the surface of the stem and the inner wall of the socket and engaged with each other.
3. A stretching apparatus for physical training as claimed in claim 1, wherein a telescopic protective sleeve is fixedly connected between the power box and the box body and is located outside the first telescopic member.
4. The stretching device for sports training as set forth in claim 1, wherein the number of teeth of the drive bevel gear is greater than the number of teeth of the driven bevel gear.
5. The stretching apparatus for physical training of claim 1 wherein the support pad is eccentrically disposed with respect to the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379651.0A CN114569966B (en) | 2022-04-12 | 2022-04-12 | Stretching device for physical training |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379651.0A CN114569966B (en) | 2022-04-12 | 2022-04-12 | Stretching device for physical training |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114569966A CN114569966A (en) | 2022-06-03 |
| CN114569966B true CN114569966B (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210379651.0A Active CN114569966B (en) | 2022-04-12 | 2022-04-12 | Stretching device for physical training |
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| CN (1) | CN114569966B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116106513B (en) * | 2023-04-10 | 2023-06-16 | 绵阳师范学院 | Experimental measurement device for geological soil in alpine region |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137504A (en) * | 1991-06-03 | 1992-08-11 | Mangini Vincent W | Stretching machine |
| CN211188982U (en) * | 2019-09-20 | 2020-08-07 | 徐州机电技师学院 | Physical training equipment for sports dancing |
| CN212235825U (en) * | 2020-03-27 | 2020-12-29 | 夏玉英 | Ligament stretching training device |
| CN113616990A (en) * | 2021-08-18 | 2021-11-09 | 沈阳体育学院 | Dance teaching is with tensile trainer of shank ligament |
-
2022
- 2022-04-12 CN CN202210379651.0A patent/CN114569966B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137504A (en) * | 1991-06-03 | 1992-08-11 | Mangini Vincent W | Stretching machine |
| CN211188982U (en) * | 2019-09-20 | 2020-08-07 | 徐州机电技师学院 | Physical training equipment for sports dancing |
| CN212235825U (en) * | 2020-03-27 | 2020-12-29 | 夏玉英 | Ligament stretching training device |
| CN113616990A (en) * | 2021-08-18 | 2021-11-09 | 沈阳体育学院 | Dance teaching is with tensile trainer of shank ligament |
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| CN114569966A (en) | 2022-06-03 |
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