CN112675488A - Sit-up body builder - Google Patents
Sit-up body builder Download PDFInfo
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- CN112675488A CN112675488A CN202011545139.6A CN202011545139A CN112675488A CN 112675488 A CN112675488 A CN 112675488A CN 202011545139 A CN202011545139 A CN 202011545139A CN 112675488 A CN112675488 A CN 112675488A
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- synchronizing wheel
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- rowing machine
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Abstract
The invention relates to a sit-up body builder which comprises a bottom plate and an arc-shaped back plate, wherein a sleeve pipe which can be adjusted up and down is sleeved on a vertical rod, and a swinging bracket is also hinged and fixed on the sleeve pipe; the water resistance rowing machine is characterized in that a ventilation hole or a ventilation groove which is communicated up and down is formed in the back plate, the water resistance rowing machine is further installed on the bottom plate, the swinging support is connected with the elastic rope of the water resistance rowing machine, so that when the swinging support swings backwards, the elastic rope can drive blades of the water resistance rowing machine to rotate in the water tank, and a fan impeller is further installed at the upper end of a blade fixing shaft of the water resistance rowing machine. This application can satisfy the personnel of different heights, size and use this fitness equipment to carry out the demand of taking exercise, still carries out the motion of multiple different forms such as shank exercise with this fitness equipment of accessible, and fan impeller can also cool down the fitness equipment on the backplate when rotating.
Description
Technical Field
The invention relates to a body-building apparatus, in particular to a sit-up body-building device.
Background
The sit-up is a movement mode for exercising abdominal muscles, when the exercise mode is adopted, two legs are closed, two hands are lifted, the abdominal muscles are utilized to contract, two arms swing forwards, a sitting posture is formed rapidly, an upper body bends forwards continuously, two hands touch foot surfaces and lower heads, then the sitting posture is formed, and the steps are continuously repeated. The sit-up exercise can increase the strength of abdominal muscles and exercise deeper muscles, and is one of the most effective methods for exercising abdominal muscles; it is also beneficial for gastrointestinal exercise, and has effects of reducing abdomen, stretching abdominal muscle, exercising balance feeling and coordination, and enhancing immunity. Daily doing sit up motion needs someone to press the shank to prevent that the shank from removing, has increased the limitation of motion, and sit up fitness equipment can this problem of effectual solution.
For example, the "sit-up roller coaster combined exercise machine" disclosed in chinese patent publication No. CN104645561A combines roller coasters and sit-up exercises into a whole, and has various use modes and can perform various forms of exercises. For example, the chinese patent publication No. CN109718504A discloses an integrated exercise machine for sit-up and arm strength, which can exercise the waist, abdomen and arm strength independently or simultaneously. The existing body-building device enriches the functions of the sit-up body-building device, but still has room for improvement.
Disclosure of Invention
The invention aims to provide a sit-up body builder which is used for solving the problem that the existing sit-up body builder is single in function.
In order to solve the problems, the invention provides a sit-up body builder which comprises a bottom plate and an arc-shaped back plate, and is characterized in that the front end of the back plate is hinged with an upward convex connecting part on the bottom plate, the bottom plate is also provided with a vertical rod corresponding to the rear end of the back plate, the vertical rod is sleeved with a sleeve which can be vertically adjusted on the vertical rod, two sides of the sleeve are respectively provided with a shank upper supporting rod close to the upper end of the sleeve, the sleeve is also fixedly hinged with a swing bracket positioned on the lower side of the shank upper supporting rod, and two sides of the swing bracket are respectively provided with a shank lower supporting rod; the water resistance rowing machine is characterized in that a ventilation hole or a ventilation groove which is communicated up and down is formed in the back plate, a water resistance rowing machine located on the lower side of the back plate is further installed on the bottom plate, the swing support is connected with an elastic rope of the water resistance rowing machine to enable the elastic rope to drive blades of the water resistance rowing machine to rotate in the water tank when the swing support swings backwards, and a fan impeller which rotates along with the blade fixing shaft synchronously is further installed at the upper end of the blade fixing shaft of the water resistance rowing machine.
The sit-up body builder provided by the invention also has the following technical characteristics:
further, the swing support includes left socle and right branch frame, the left socle with the right branch frame passes through the middle part link and links to each other fixedly, the middle part link includes left connecting rod and right connecting rod, the left connecting rod with the right connecting rod all is circular-arc and the tip passes through the transverse connection and fixes linking to each other, the left connecting rod with be formed with between the right connecting rod and dodge sheathed tube interval.
Furthermore, one side of the left support and one side of the right support, which is far away from the transverse connecting rod, are respectively provided with an arc-shaped guide plate, and the sleeve is provided with two arc-shaped guide grooves which respectively correspond to the guide plates.
Furthermore, a first bolt hole is formed in the guide plate, and a plurality of second bolt holes corresponding to the first bolt holes are formed in the guide groove, so that the swing support can be locked on the sleeve.
Furthermore, a back plate fixing plate is hinged to the sleeve, and the other end of the back plate fixing plate is hinged to the rear end of the back plate; the sleeve is also provided with a plurality of adjusting holes for adjusting the installation height of the sleeve on the upright rod.
Furthermore, a supporting rod positioned between the vertical rod and the water resistance rowing machine is further arranged on the bottom plate, a rotatable first synchronizing wheel is mounted at the top end of the supporting rod, a second synchronizing wheel is fixed at one end, extending out of the water tank, of the blade fixing shaft, the first synchronizing wheel and the second synchronizing wheel are in connection transmission through a synchronous belt, and the diameter of the first synchronizing wheel is larger than that of the second synchronizing wheel; the lower side of the first synchronizing wheel is further fixedly provided with a rotary table which rotates along with the first synchronizing wheel, a rope groove is formed in the rotary table, and an elastic rope connected with the swing support is wound in the rope groove.
Further, the diameter of the first synchronizing wheel is larger than 2 times of the diameter of the second synchronizing wheel, and the diameter of the first synchronizing wheel is larger than 2 times of the diameter of the rotating disc.
Furthermore, a cantilever positioned between the support rod and the swing support is further arranged on the support rod, a guide hole is formed in the end portion of the cantilever, and the elastic rope penetrates through the guide hole to be connected with the rotary table.
Further, still the cover is equipped with the reset torsion spring on the bracing piece, during the swing support backswing first synchronizing wheel can rotate under the effect of reset torsion spring and reset.
The invention has the following beneficial effects: through setting up the sleeve pipe that can adjust from top to bottom, can satisfy the personnel of different heights, size and use this fitness equipment to take exercise the demand. The water resistance rowing machine is provided with a swinging support with a lower shank supporting rod and a water resistance rowing machine, when the swinging support is locked, the body building machine can be used for normal sit-up exercise, when the swinging support is set to be in a swinging state, a body building person lies on the back plate, the swinging support is driven to rotate through the swinging of the shank, the swinging support drives blades of the water resistance rowing machine to rotate in a water tank through elastic ropes of the water resistance rowing machine, and the muscles of the shank can be exercised by the swinging support and the water resistance rowing machine to carry out local leg exercise; resistance through hindering rowing machine to water adjusts, still can carry out sit up motion and shank simultaneously and take exercise, specifically speaking, when swing support's resistance is great, can carry out the waist and take exercise when sitting up, and the shank exercise can be carried out in the swing of the in-process shank in certain range to the sitting up, and the exercise of multiple different forms is carried out to this fitness equipment of accessible from this. The fan impeller arranged at the upper end of the paddle fixing shaft of the water resistance rowing machine can synchronously rotate along with the paddle fixing shaft to drive the air circulation under the backboard when the paddle of the water resistance rowing machine is driven to rotate by the swinging support, and the body building personnel on the backboard is cooled through the ventilation holes or the ventilation grooves on the backboard.
Drawings
FIG. 1 is a schematic structural view of a sit-up exercise machine according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another perspective of the sit-up exercise machine of FIG. 1;
FIG. 3 is a front view of the sit-up exercise machine of FIG. 1;
FIG. 4 is a schematic structural diagram of a bushing in an embodiment of the invention;
FIG. 5 is a schematic view of the bushing of FIG. 4 from another perspective;
FIG. 6 is a schematic structural diagram of a swing frame according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another view angle of the swing bracket in fig. 6.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 7, in an embodiment of the sit-up exercise machine of the present invention, the sit-up exercise machine of the present invention includes a bottom plate 10 and an arc-shaped back plate 20, a front end of the back plate 20 is hinged to an upper convex connecting portion 11 on the bottom plate 10, the bottom plate 10 is further provided with an upright rod 30 corresponding to a rear end of the back plate 20, the upright rod 30 is sleeved with a sleeve 40 which can be vertically adjusted on the upright rod 30, two sides of the sleeve 40 are respectively provided with an upper shank supporting rod 41 close to an upper end of the sleeve 40, the sleeve 40 is further hinged and fixed with a swing bracket 50 located at a lower side of the upper shank supporting rod 41, and two sides of the swing bracket 50 are respectively provided with a lower shank; the back plate 20 is provided with a ventilation hole or a ventilation groove 201 which is through up and down, the bottom plate 10 is further provided with a water resistance rowing machine 60 which is positioned on the lower side of the back plate 20, the swinging bracket 50 is connected with an elastic rope of the water resistance rowing machine 60, so that the elastic rope can drive blades of the water resistance rowing machine 60 to rotate in the water tank 61 when the swinging bracket 50 swings backwards, and the upper end of a blade fixing shaft 62 of the water resistance rowing machine 60 is further provided with a fan impeller 63 which synchronously rotates along with the blade fixing shaft 62.
The sit-up fitness equipment in the embodiment is provided with the swinging support with the lower supporting rod of the shank and the water resistance rowing machine, when the swinging support is locked, the fitness equipment can be used for normal sit-up exercise, when the swinging support is set to be in a swinging state, a fitness person lies on the back of the body, the swinging support is driven to rotate by the swinging of the shank, the swinging support drives the blades of the water resistance rowing machine to rotate in the water tank through the elastic rope of the water resistance rowing machine, and the muscles of the shank can be exercised by the swinging support and the water resistance rowing machine to carry out local exercise of the legs; resistance through hindering rowing machine to water adjusts, still can carry out sit up motion and shank simultaneously and take exercise, specifically speaking, when swing support's resistance is great, can carry out the waist and take exercise when sitting up, and the shank exercise can be carried out in the swing of the in-process shank in certain range to the sitting up, and the exercise of multiple different forms is carried out to this fitness equipment of accessible from this. The fan impeller arranged at the upper end of the paddle fixing shaft of the water resistance rowing machine can synchronously rotate along with the paddle fixing shaft to drive the air circulation under the backboard when the paddle of the water resistance rowing machine is driven to rotate by the swinging support, and the body building personnel on the backboard is cooled through the ventilation holes or the ventilation grooves on the backboard.
In the sit-up fitness equipment in the above embodiment, the water resistance rowing machine 60 includes the water tank 61 and the blade fixing shaft 62, the blade fixing shaft 62 is vertically fixed in the middle of the water tank 61, the blade rotating in the water tank 61 along with the blade fixing shaft 62 is fixed on the part of the blade fixing shaft 62 in the water tank 61, and the water in the water tank can generate resistance to the rotation of the blade. The specific structure and working principle of the water resistance rowing machine can be referred to the chinese patent documents "CN 209828073U a water resistance rowing machine with adjustable resilience", "CN 201780000813.2 a water resistance rowing exercise machine", "CN 209405576U a folding type water resistance rowing machine for exercise", etc., and will not be described herein again.
In an embodiment of the present application, preferably, the swing bracket 50 includes a left bracket 501 and a right bracket 502, the left bracket 501 and the right bracket 502 are fixedly connected through a middle connection frame 503, the middle connection frame 503 includes a left link and a 5031 and a right link 5032, the left link 5031 and the right link 5032 are both arc-shaped and have end portions fixedly connected through a cross link 5033, and a space of the avoiding sleeve 40 is formed between the left link 5031 and the right link 5032, so that the swing bracket 50 can have a large swing amplitude relative to the sleeve 40 to drive the blades of the water resistance rowing machine to rotate.
In an embodiment of the present application, it is preferable that the left bracket 501 and the right bracket 502 are further provided with arc-shaped guide plates 504 on sides facing away from the cross link 5033, and the sleeve 40 is provided with two arc-shaped guide grooves 401 corresponding to the guide plates 504, respectively, so that the swing bracket 50 can reliably swing on the sleeve 40.
In an embodiment of the present application, preferably, the guide plate 504 is provided with a first bolt hole 5041, and the guide slot 401 is provided with a plurality of second bolt holes 4011 corresponding to the first bolt holes 5041, so as to lock the swing bracket 50 on the sleeve 50, specifically, the plurality of second bolt holes 4011 are provided to adjust the fixing position of the swing bracket 50 as required, so as to meet exercise requirements of different people. Preferably, the guide plate 504 is further provided with a connecting pole 5042 for connecting a bungee cord of the water-stop rowing machine.
In one embodiment of the present application, preferably, the sleeve 40 is hinged with a back plate fixing plate 42, and the other end of the back plate fixing plate 42 is hinged with the rear end of the back plate 20; the sleeve 40 is further provided with a plurality of adjustment holes 43 for adjusting the installation height of the sleeve 40 on the vertical rod 30, thereby conveniently adjusting the installation height of the sleeve.
In one embodiment of the present application, preferably, a support rod 70 is further disposed on the bottom plate 10 and located between the upright 30 and the water resistance rowing machine 60, a rotatable first synchronizing wheel 71 is mounted at a top end of the support rod 70, a second synchronizing wheel 72 is fixed at one end of the blade fixing shaft 62 extending upwards out of the water tank 61, the first synchronizing wheel 71 and the second synchronizing wheel 72 are connected and driven through a synchronizing belt (not shown in the figure), and a diameter of the first synchronizing wheel 71 is larger than a diameter of the second synchronizing wheel 72; the lower side of the first synchronizing wheel 71 is further fixedly provided with a rotary disc 73 which rotates along with the first synchronizing wheel 71, a rope groove is formed in the rotary disc 73, an elastic rope connected with the swing bracket 50 is wound in the rope groove, and the rotary disc, the first synchronizing wheel and the second synchronizing wheel are arranged, so that the movement stroke of the swing bracket 50 can be amplified to drive the water resistance rowing machine to rotate, and a good exercise effect is obtained. Preferably, the diameter of the first synchronizing wheel 71 is greater than 2 times the diameter of the second synchronizing wheel 72, and the diameter of the first synchronizing wheel 71 is greater than 2 times the diameter of the rotating disc 73, thereby enlarging the moving stroke of the swing frame to obtain a better exercise effect.
In an embodiment of the present application, preferably, the supporting rod 70 is further provided with a cantilever 74 located between the supporting rod 70 and the swing bracket 50, an end of the cantilever 74 is provided with a guide hole 741 or a guide wheel, and the elastic cord passes through the guide hole 741 to be connected with the rotating disc 73, so as to guide the elastic cord and prevent the elastic cord from swinging during the swinging of the swing bracket 50, so that the elastic cord can be reliably wound and stored in the cord groove of the rotating disc. Preferably, a reset torsion spring (not shown) is further sleeved on the support rod 70, and the first synchronizing wheel 71 and the rotating disc 73 can rotate and reset under the action of the reset torsion spring when the swing bracket 50 swings back. In another embodiment, the support rod 70 is not provided with a torsion spring for rotationally resetting the first synchronizing wheel 71 and the turntable 73, the first synchronizing wheel 71 and the turntable 73 are rotationally reset by the blade fixing shaft, the second synchronizing wheel, the first synchronizing wheel, the turntable and the like driven by the resetting mechanism on the water resistance rowing machine, and the resetting mechanism of the water resistance rowing machine can refer to the related prior art and is not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A sit-up fitness device comprises a bottom plate and an arc-shaped back plate, and is characterized in that the front end of the back plate is hinged with an upward convex connecting part on the bottom plate, a vertical rod corresponding to the rear end of the back plate is further arranged on the bottom plate, a sleeve capable of being vertically adjusted on the vertical rod is sleeved on the vertical rod, a shank upper supporting rod close to the upper end of the sleeve is respectively arranged on two sides of the sleeve, a swing bracket positioned on the lower side of the shank upper supporting rod is further hinged and fixed on the sleeve, and a shank lower supporting rod is respectively arranged on two sides of the swing bracket; the water resistance rowing machine is characterized in that a ventilation hole or a ventilation groove which is communicated up and down is formed in the back plate, a water resistance rowing machine located on the lower side of the back plate is further installed on the bottom plate, the swing support is connected with an elastic rope of the water resistance rowing machine to enable the elastic rope to drive blades of the water resistance rowing machine to rotate in the water tank when the swing support swings backwards, and a fan impeller which rotates along with the blade fixing shaft synchronously is further installed at the upper end of the blade fixing shaft of the water resistance rowing machine.
2. The sit-up exercise machine of claim 1, wherein: the swing support includes left socle and right branch frame, the left socle with the right branch frame passes through the middle part link and fixes linking to each other, the middle part link includes left connecting rod and right connecting rod, the left side connecting rod with the right connecting rod all is circular-arc and the tip passes through the transverse connection pole and fixes linking to each other, the left side connecting rod with be formed with between the right connecting rod and dodge sheathed tube interval.
3. The sit-up exercise machine of claim 2, wherein: the left branch frame with one side that deviates from on the right branch frame horizontal connecting rod still is equipped with circular-arc deflector respectively, be equipped with two on the sleeve pipe respectively with circular-arc guide way that the deflector corresponds.
4. The sit-up exercise machine of claim 3, wherein: be equipped with first bolt hole on the deflector, be equipped with a plurality of on the guide way with the second bolt hole that first bolt hole corresponds so that with the swing bracket locking is in on the sleeve pipe.
5. The sit-up exercise machine of claim 1, wherein: a back plate fixing plate is hinged to the sleeve, and the other end of the back plate fixing plate is hinged to the rear end of the back plate; the sleeve is also provided with a plurality of adjusting holes for adjusting the installation height of the sleeve on the upright rod.
6. The sit-up exercise machine of claim 1, wherein: the bottom plate is also provided with a supporting rod positioned between the vertical rod and the water resistance rowing machine, the top end of the supporting rod is provided with a rotatable first synchronizing wheel, one end of the paddle fixing shaft, which extends upwards out of the water tank, is fixedly provided with a second synchronizing wheel, the first synchronizing wheel and the second synchronizing wheel are connected and driven through a synchronizing belt, and the diameter of the first synchronizing wheel is larger than that of the second synchronizing wheel; the lower side of the first synchronizing wheel is further fixedly provided with a rotary table which rotates along with the first synchronizing wheel, a rope groove is formed in the rotary table, and an elastic rope connected with the swing support is wound in the rope groove.
7. The sit-up exercise machine of claim 6, wherein: the diameter of the first synchronizing wheel is larger than 2 times of the diameter of the second synchronizing wheel, and the diameter of the first synchronizing wheel is larger than 2 times of the diameter of the rotary disc.
8. The sit-up exercise machine of claim 6, wherein: the support rod is further provided with a cantilever positioned between the support rod and the swing support, the end part of the cantilever is provided with a guide hole, and the elastic rope penetrates through the guide hole to be connected with the rotary table.
9. The sit-up exercise machine of claim 6, wherein: still the cover is equipped with the reset torsion spring on the bracing piece, during the swing support backswing first synchronizing wheel can rotate under the effect of reset torsion spring and reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011545139.6A CN112675488B (en) | 2020-12-23 | 2020-12-23 | Sit-up body builder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011545139.6A CN112675488B (en) | 2020-12-23 | 2020-12-23 | Sit-up body builder |
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| Publication Number | Publication Date |
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| CN112675488A true CN112675488A (en) | 2021-04-20 |
| CN112675488B CN112675488B (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011545139.6A Active CN112675488B (en) | 2020-12-23 | 2020-12-23 | Sit-up body builder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114272564A (en) * | 2021-12-28 | 2022-04-05 | 郑州市第七人民医院 | Lower limb recovery training device for neurosurgical nursing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110275496A1 (en) * | 2010-05-10 | 2011-11-10 | Yu-Chih Chou | Exerciser |
| KR20130003838U (en) * | 2011-12-19 | 2013-06-27 | 이종애 | Sit up machine having rowing machine |
| CN104645561A (en) * | 2015-01-16 | 2015-05-27 | 黎平虎 | Sit-up and roller coaster combined exercise equipment |
| CN207605295U (en) * | 2017-01-09 | 2018-07-13 | 临沂市凯莱特健身器材有限公司 | A kind of body-building liquid resistance rowing machine |
| CN109529268A (en) * | 2018-12-18 | 2019-03-29 | 南京林业大学 | A kind of physical training is lain on the back instrument of drawing the abdomen |
| CN209005134U (en) * | 2018-10-22 | 2019-06-21 | 王卓琳 | A kind of apparatus for body building with sit-ups |
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2020
- 2020-12-23 CN CN202011545139.6A patent/CN112675488B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110275496A1 (en) * | 2010-05-10 | 2011-11-10 | Yu-Chih Chou | Exerciser |
| KR20130003838U (en) * | 2011-12-19 | 2013-06-27 | 이종애 | Sit up machine having rowing machine |
| CN104645561A (en) * | 2015-01-16 | 2015-05-27 | 黎平虎 | Sit-up and roller coaster combined exercise equipment |
| CN207605295U (en) * | 2017-01-09 | 2018-07-13 | 临沂市凯莱特健身器材有限公司 | A kind of body-building liquid resistance rowing machine |
| CN209005134U (en) * | 2018-10-22 | 2019-06-21 | 王卓琳 | A kind of apparatus for body building with sit-ups |
| CN109529268A (en) * | 2018-12-18 | 2019-03-29 | 南京林业大学 | A kind of physical training is lain on the back instrument of drawing the abdomen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114272564A (en) * | 2021-12-28 | 2022-04-05 | 郑州市第七人民医院 | Lower limb recovery training device for neurosurgical nursing |
| CN114272564B (en) * | 2021-12-28 | 2022-10-11 | 郑州市第七人民医院 | Lower limb recovery training device for neurosurgery nursing |
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| Publication number | Publication date |
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| CN112675488B (en) | 2022-03-04 |
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