CN203724710U - Sit-up machine - Google Patents
Sit-up machine Download PDFInfo
- Publication number
- CN203724710U CN203724710U CN201420119069.1U CN201420119069U CN203724710U CN 203724710 U CN203724710 U CN 203724710U CN 201420119069 U CN201420119069 U CN 201420119069U CN 203724710 U CN203724710 U CN 203724710U
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- CN
- China
- Prior art keywords
- support leg
- front support
- leg body
- sit
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a sit-up machine, which comprises a sit-up board, a front supporting foot, a rear supporting foot, a foot stopping rack, a foot catching rack and a driving device, wherein the front supporting foot is connected with one end of the sit-up board; the rear supporting foot is connected with the other end of the sit-up board; the foot stopping rack is arranged at the top end of the front supporting foot; the foot catching rack is arranged at the middle part of the front supporting foot; the front supporting foot comprises an inner front supporting foot body, an outer front supporting foot body, a base, a stepping motor, a rotating wheel, a digging rope, a first spring and an electromagnetic lock, wherein the outer front supporting foot body is sheathed on the exterior of the inner front supporting foot body; the base is fixedly connected with the inner front supporting foot body; the stepping motor is packaged in the base; the rotating wheel is connected with a live shaft of the stepping motor; the digging rope is wound on the rotating wheel; the electromagnetic lock is arranged at the lower end of the outer front supporting foot body. The sit-up machine disclosed by the utility model has the beneficial effects that automatic rising-lowering of the front supporting foot is realized, and convenience is brought to users.
Description
Technical field
The utility model relates to a kind of health and fitness facilities, particularly relates to a kind of sit-up device.
Background technology
Sit-up device belongs to body-building apparatus, and people are used for moving and draw the abdomen now.In prior art, sit-up device comprises support and abdominal boards, in motion process, need different exercise intensities for the people of different physique, and Here it is is determined by the angle of abdominal boards and support.
The folding apparatus for body building with sit-ups that to disclose application number in Chinese patent be 200920113472.2, this folding apparatus for body building with sit-ups comprises front support leg, bracing frame, gear foot rest, hook frame, gear foot rest is fixed on the top of bracing frame, hook frame is arranged on the middle part of bracing frame, it is characterized in that: described front support leg telescopically is arranged on the bottom of bracing frame, on bracing frame, be hinged with body frame, the other end of the upper body frame lower body frame that is connected through the hinge, the lower body frame other end supports ground.Although realized the motion amplitude that regulates sit-ups by the height of adjusting support frame, in this patent, do not have the structure of front support leg, do not know how to regulate.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of sit-up device, has realized the automatic adjusting of front support leg, brings convenience to user.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of sit-up device is provided, comprise abdominal boards, the front support leg being connected with one end of abdominal boards, the rear leg being connected with the other end of abdominal boards, be arranged at the gear foot rest on front support leg top, be arranged at hook frame and drive unit with front support leg middle part, this front support leg comprises interior front support leg body, be placed on this external outer front support leg body of interior front support leg, the base being fixedly connected with interior front support leg body, collection is loaded on the stepper motor in base, the moving runner being connected with the turning cylinder of stepper motor, the stay cord of convolution on moving runner, the first spring and be arranged at the electromagnetic lock of the lower end of outer front support leg body, this outer front support leg body is barrel-like structure, one end convolution of stay cord is on moving runner, the other end of stay cord is connected with the bottom of outer front support leg body, the upper end edge vertical direction of this interior front support leg body is provided with spring container cavity, one end of the first spring is fixedly connected with the bottom of outer front support leg body, the other end of the first spring is arranged in spring container cavity, on interior front support leg body, along continuous straight runs is provided with at least two lock holes, distance between this lock hole and lock hole and the convolution of stay cord or unclamp equal in length, this drive unit comprises the motor driver being electrically connected with stepper motor, the single-chip microcomputer being connected with motor driver, key circuit and on-off circuit.
Further, described electromagnetic lock comprises with the integrated shell of outer front support leg body, collection and is loaded on solenoid in shell, is arranged at the second spring and electromagnetism cylinder in solenoid, one end of electromagnetism cylinder penetrates solenoid and is connected with the second spring, and the shape of this electromagnetism cylinder and the shape of lock hole match.
Further, described hook frame comprises two hook bodies, is placed on sleeve and bolt on outer front support leg body, and two hook bodies are arranged at respectively two offsides of sleeve, and this sleeve is fixed by bolt and outer front support leg body.
The beneficial effects of the utility model: adopt stepper motor to drive, stepper motor is by the effect of stay cord and the first spring, realize the automatic lifting of outer front support leg body with respect to interior front support leg body, simple to operate, only need to press second switch or the 3rd switch just can be realized, bring convenience to user.
Brief description of the drawings
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is the structural representation of the utility model sit-up device.
Fig. 2 is the structural representation after the utility model sit-up device raises.
Fig. 3 is the internal structure schematic diagram of rear leg in Fig. 1 and Fig. 2.
Fig. 4 is the circuit diagram of the utility model sit-up device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment: as shown in Fig. 1 and Fig. 4, a kind of sit-up device comprises abdominal boards 1, the front support leg 2 being connected with one end of abdominal boards 1, the rear leg 3 being connected with the other end of abdominal boards 1, the gear foot rest 4 that is arranged at front support leg 2 tops, be arranged at hook frame 5 and drive unit 6 with front support leg 2 middle parts.
Shown in Fig. 2 and Fig. 3, particularly, this front support leg 2 comprises interior front support leg body 20, is placed on outer front support leg body 21, the base 22 being fixedly connected with interior front support leg body 20 outside interior front support leg body 20, collects the stepper motor 23 being loaded in base 22, the moving runner 24 being connected with the turning cylinder of stepper motor 23, convolution stay cord 25, the first spring 26 on moving runner 24 and is arranged at the electromagnetic lock 27 of the lower end of outer front support leg body 21.This outer front support leg body 21 is barrel-like structure, and one end convolution of stay cord 25 is on moving runner 24, and the other end of stay cord 25 is connected with the bottom of outer front support leg body 21.The upper end edge vertical direction of this interior front support leg body 20 is provided with spring container cavity, and one end of the first spring 26 is fixedly connected with the bottom of outer front support leg body 21, and the other end of the first spring 26 is arranged in spring container cavity.On interior front support leg body 20, along continuous straight runs is provided with at least two lock holes 200, distance between this lock hole 200 and lock hole 200 and the convolution of stay cord 25 or unclamp equal in length, the convolution of stay cord 25 or unclamp length and matched by the rotational angle of stepper motor 23.Electromagnetic lock 27 comprises with the integrated shell 270 of outer front support leg body 21, collection and is loaded on solenoid 271 in shell 270, is arranged at the second spring 272 and electromagnetism cylinder 273 in solenoid 271, one end of electromagnetism cylinder 273 penetrates solenoid 271 and is connected with the second spring 272, and the shape of the shape of this electromagnetism cylinder 273 and lock hole 200 matches.
This hook frame 5 comprises two hook bodies 50, be placed on sleeve 51 on outer front support leg body 21 and 52, two hook bodies 50 of bolt is arranged at respectively two offsides of sleeve 51, and this sleeve 51 is fixing with outer front support leg body 21 by bolt 52.
Please refer to shown in Fig. 4, this drive unit 6 comprises the motor driver 60 being electrically connected with stepper motor 23, the single-chip microcomputer 61, key circuit 62 and the on-off circuit 63 that are connected with motor driver 60.This single-chip microcomputer 61 adopts AT89S51 chip, and this motor driver 60 adopts ULN2003 chip.Key circuit 62 comprises the first switch, the first resistance, second switch and the 3rd switch.One end of the first switch is connected with the first input end of single-chip microcomputer 61, the other end ground connection of second switch, one end of second switch is connected with the second input of single-chip microcomputer 61, the other end ground connection of second switch, one end of the 3rd switch is connected with the first input end of single-chip microcomputer 61, the other end ground connection of the 3rd switch, one end of the first resistance is connected in Nodes the 3rd switch of Nodes, second switch and single-chip microcomputer 61 of the first switch and single-chip microcomputer 61 and the Nodes of single-chip microcomputer 61, another termination power of the first resistance.
Described on-off circuit 63 comprises the 4th resistance and the triode being connected with the output of single-chip microcomputer 61, the base stage of described triode is connected with the 4th resistance, the grounded emitter of described triode, the colelctor electrode of described triode is connected with solenoid 271, and described solenoid 271 connects power supply.
Operation principle of the present utility model: press the first switch, single-chip microcomputer 61 accessory drives 6 start.Press second switch, outer front support leg body 21 rises; Press the 3rd switch, outer front support leg body 21 declines.Press second switch, under the control of single-chip microcomputer 61, first solenoid 271 energisings produce magnetic field, electromagnetism cylinder 273 is retracted, interior front support leg body 20 departs from electromagnetism cylinder 273, stepper motor 23 forwards, the stay cord 25 of convolution on moving runner 24 is released, the lower outside front support leg body 21 of effect at the first spring 26 rises, solenoid 271 power-off after outer front support leg body 21 rises, electromagnetism cylinder 273 penetrates interior front support leg body 20 under the restoring force effect of the second spring 272, and outer front support leg body 21 is fixing with interior front support leg body 20.
These are only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure that utilizes the utility model description and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, all in like manner within scope of patent protection of the present utility model.
Claims (3)
1. a sit-up device, it is characterized in that, comprise abdominal boards, the front support leg being connected with one end of abdominal boards, the rear leg being connected with the other end of abdominal boards, be arranged at the gear foot rest on front support leg top, be arranged at hook frame and drive unit with front support leg middle part, this front support leg comprises interior front support leg body, be placed on this external outer front support leg body of interior front support leg, the base being fixedly connected with interior front support leg body, collection is loaded on the stepper motor in base, the moving runner being connected with the turning cylinder of stepper motor, the stay cord of convolution on moving runner, the first spring and be arranged at the electromagnetic lock of the lower end of outer front support leg body, this outer front support leg body is barrel-like structure, one end convolution of stay cord is on moving runner, the other end of stay cord is connected with the bottom of outer front support leg body, the upper end edge vertical direction of this interior front support leg body is provided with spring container cavity, one end of the first spring is fixedly connected with the bottom of outer front support leg body, the other end of the first spring is arranged in spring container cavity, on interior front support leg body, along continuous straight runs is provided with at least two lock holes, distance between this lock hole and lock hole and the convolution of stay cord or unclamp equal in length, this drive unit comprises the motor driver being electrically connected with stepper motor, the single-chip microcomputer being connected with motor driver, key circuit and on-off circuit.
2. sit-up device according to claim 1, it is characterized in that, described electromagnetic lock comprises with the integrated shell of outer front support leg body, collection and is loaded on solenoid in shell, is arranged at the second spring and electromagnetism cylinder in solenoid, one end of electromagnetism cylinder penetrates solenoid and is connected with the second spring, and the shape of this electromagnetism cylinder and the shape of lock hole match.
3. sit-up device according to claim 1, it is characterized in that, described hook frame comprises two hook bodies, is placed on sleeve and bolt on outer front support leg body, and two hook bodies are arranged at respectively two offsides of sleeve, and this sleeve is fixed by bolt and outer front support leg body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119069.1U CN203724710U (en) | 2014-03-14 | 2014-03-14 | Sit-up machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119069.1U CN203724710U (en) | 2014-03-14 | 2014-03-14 | Sit-up machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203724710U true CN203724710U (en) | 2014-07-23 |
Family
ID=51194813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119069.1U Expired - Fee Related CN203724710U (en) | 2014-03-14 | 2014-03-14 | Sit-up machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203724710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413110A (en) * | 2015-12-24 | 2016-03-23 | 南通铁人运动用品有限公司 | Modular design method for fitness equipment |
-
2014
- 2014-03-14 CN CN201420119069.1U patent/CN203724710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413110A (en) * | 2015-12-24 | 2016-03-23 | 南通铁人运动用品有限公司 | Modular design method for fitness equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20150314 |
|
| EXPY | Termination of patent right or utility model |