CN202270298U - Improved structure of three-section type sit up bench - Google Patents
Improved structure of three-section type sit up bench Download PDFInfo
- Publication number
- CN202270298U CN202270298U CN2011203459815U CN201120345981U CN202270298U CN 202270298 U CN202270298 U CN 202270298U CN 2011203459815 U CN2011203459815 U CN 2011203459815U CN 201120345981 U CN201120345981 U CN 201120345981U CN 202270298 U CN202270298 U CN 202270298U
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- frame
- fork
- pulleys
- vertical support
- support frame
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- 210000001015 abdomen Anatomy 0.000 abstract description 2
- 238000005496 tempering Methods 0.000 description 2
- 210000004705 lumbosacral region Anatomy 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
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Abstract
The utility model discloses an improved structure of a three-section type sit up bench, which comprises a sit bench, a rack, an oscillating bar, an upper supporting leg, a lower supporting leg, an elastic pull rope and two pulleys, wherein the two pulleys are respectively rotatably arranged on the middle part of the oscillating bar and the middle part of a vertical bracket of the rack, one end of the elastic pull rope is hung on the upper part of the oscillating bar, the other end of the elastic pull rope is detachably hung on a rear bottom frame of the rack, and the middle of the elastic pull rope is wound on the two pulleys. The middle of the elastic pull rope is wound on the two pulleys, the two pulleys are respectively rotatably arranged on the middle part of the oscillating bar and the middle part of the vertical bracket of the rack, thus the elastic pull rope applies a mutually-supporting external force to the two pulleys. When an exerciser pushes away the oscillating bar, the external force generated by the elastic pull rope is overcome, thus the purpose of exercising the belly and the legs is achieved. Therefore, the improved structure has the characteristics of simple structure and complete functions.
Description
Technical field
The utility model relates to a kind of fitness equipment, particularly relates to the lie on the back improvement structure of plate of a kind of syllogic.
Background technology
Along with rapid economy development; People are to the continuous lifting of healthy pay attention to day by day and living standard; Make the use of health equipment increasingly extensive; People are also more and more to the functional requirement of health equipment, have the function of tempering limbs except requiring it, also hope to have other functions such as physiotherapy, massage, fitness.Along with the rapid surge of clerical workforce and white collar personnel number, and in the face of the huge social operating pressure, the problematic people of lumbar spine is more and more, and people urgently hope to have a kind of body-building apparatus simple in structure that can perform physical exercise to each position of human body.
The utility model content
The purpose of the utility model is to provide a kind of simple in structure, multiple functional syllogic improvement structure of plate of lying on the back.
For realizing above-mentioned purpose, the technical solution of the utility model is:
The utility model is the lie on the back improvement structure of improvement structure of plate of a kind of syllogic, it comprise plate for sleeping in, frame, fork, upward lean on pin, lean on pin, drag rope of elasticity down; Described frame is made up of longeron, vertical support frame, swing span, bracing frame, preceding underframe and back underframe; The front end of described longeron is vertically fixed on the middle part of vertical support frame, and the rear end of longeron is vertically fixed on the middle part of back underframe, and the upper end of vertical support frame is fixed on the middle part of leaning on pin; The middle part of underframe before the lower end of vertical support frame is fixed on; Longeron and vertical support frame constitute a triangular support, and at a plurality of pin joints of longeron outer setting, the inner of described swing span is hinged on frame longeron front end; The middle part of swing span and bracing frame the inner are hinged, and the outer end of bracing frame is hinged with a pin joint in a plurality of pin joints that are arranged on the longeron outside; The upper end of described fork is hinged on the upper end of vertical support frame, leans on the pin middle part to be fixed on the lower end of fork down; On the swing span of the frame that described plate for sleeping in is fixing.It also comprises two with top sheave, and these two with the rotating respectively vertical support frame middle part that is installed in fork middle part and frame of top sheave; One end of described drag rope of elasticity is articulated in fork top, and the other end is articulated on the back underframe of frame removably, the middle part solderless wrapped connection of drag rope of elasticity two with top sheave on.
Described two is two with top sheave, the rotating respectively vertical support frame middle part that is installed in fork middle part and frame of these two pulleys; One end of described drag rope of elasticity is articulated in fork top, and the other end is articulated on the back underframe of frame removably, and the middle part solderless wrapped connection of drag rope of elasticity is on these two pulleys.
Described two pulleys each other against.
Described two is three with top sheave, a rotating fork middle part that is installed in these three pulleys, two rotating vertical support frame middle parts that are installed in frame in these three pulleys; One end of described drag rope of elasticity is articulated in fork top, and the other end is articulated on the back underframe of frame removably, the middle part of drag rope of elasticity walk around successively on two pulleys that are installed on the vertical support frame with the pulley that is installed on fork middle part on.
Described fork is provided with the position that articulates more than two, and an end of described drag rope of elasticity is articulated in the position that articulates more than two.
After adopting such scheme because the middle part solderless wrapped connection of the drag rope of elasticity of the utility model is on two pulleys, two rotating respectively vertical support frame middle parts that are installed in fork middle part and frame of pulley, drag rope of elasticity to two pulleys impose mutual against external force.When the person taking exercise pushes fork open, need overcome the external force that produces by this drag rope of elasticity, thereby reach the purpose of tempering belly, leg power.So, the utlity model has simple in structure, multiple functional characteristics.
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.
Description of drawings
Fig. 1 is the axonometric drawing of first embodiment of the utility model;
Fig. 2 is the three-dimensional exploded view of first embodiment of the utility model;
Fig. 3 is the axonometric drawing of second embodiment of the utility model;
Fig. 4 is the three-dimensional exploded view of second embodiment of the utility model.
The specific embodiment
Like Fig. 1, shown in Figure 2, the utility model is a kind of fitness equipment of lying on the back, it mainly by plate for sleeping in 1, frame 2, fork 3, upward lean on pin 4, lean on pin 5, drag rope of elasticity 6, two grip stay cords 7, assembly pulleys 8 to form down.
Described frame 2 is made up of longeron 21, vertical support frame 22, preceding underframe 23, back underframe 24, handrail tube 25, swing span 26, bracing frame 27.Two pin joints of the outer setting of described longeron 21 211,212; The front end of longeron 21 is vertically fixed on the middle part of vertical support frame 22; The rear end of longeron 21 is vertically fixed on the middle part of back underframe 24; The upper end of vertical support frame 22 is fixed on the middle part of leaning on pin 4, the middle part of underframe 23 before the lower end of vertical support frame 22 is fixed on, and longeron 21 constitutes a triangular support with vertical support frame 22.Described handrail tube 25 laterally is set on the longeron 21.
The inner of described swing span 26 is hinged on frame 2 longerons 21 front ends; The middle part of swing span 26 and bracing frame 27 are inner hinged; The outer end of bracing frame 27 is hinged with a pin joint in two pin joints 211,212 that are arranged on longeron 21 outsides, and the mode that its articulated manner adopts latch 28 to wear is carried out.On the swing span 26 of the frame 2 that described plate for sleeping in 1 is fixed.
One end of described two grip stay cords 7 is connected respectively on the back underframe 24 of frame 2 removably, and the other end of two grip stay cords 7 can hang on the handrail tube 25 of frame 2.
As shown in Figure 1, the upper end of described fork 3 is hinged on the upper end of vertical support frame 22, on fork 3, is provided with three and articulates position 31,32,33.
Like Fig. 1, shown in Figure 2, be first embodiment of the utility model.Described assembly pulley 8 is made up of two pulleys 81,82, these two pulleys, 81,82 rotating respectively vertical support frame 22 middle parts that are installed in fork 3 middle parts and frame 2.One end of described drag rope of elasticity 6 is articulated in articulating on the position 31 of fork 3 tops, and the other end is articulated on the back underframe 24 of frame 2 removably, and the middle part solderless wrapped connection of drag rope of elasticity 6 is on two pulleys 81,82.Under drag rope of elasticity 6 effect, under the normality, two pulleys 81,82 each other against.
Like Fig. 3, shown in Figure 4, be second embodiment of the utility model.Described assembly pulley 8 ' is made up of three pulleys 81 ', 82 ', 83 ', pulley 81 ' rotating fork 3 middle parts that are installed in, two pulley 82 ', 83 ' rotating vertical support frame 22 middle parts that are installed in frame 2; One end of described drag rope of elasticity 6 is articulated in articulating on the position 31 of fork 3 tops; The other end is articulated on the back underframe 24 of frame 2 removably, and the middle part of drag rope of elasticity 6 is walked around successively at two pulleys 83 ', 82 ' that are installed on the vertical support frame 22 and gone up and be installed on the pulley 81 ' at fork 3 middle parts.
The emphasis of the utility model just is: the wrapping system of drag rope of elasticity.
The above; Be merely the utility model preferred embodiment; The quantity of pulley can be had needs and decided; So can not limit the scope that the utility model is implemented with this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (5)
1. the syllogic improvement structure of improvement structure of plate of lying on the back, it comprise plate for sleeping in, frame, fork, upward lean on pin, lean on pin, drag rope of elasticity down; Described frame is made up of longeron, vertical support frame, swing span, bracing frame, preceding underframe and back underframe; The front end of described longeron is vertically fixed on the middle part of vertical support frame, and the rear end of longeron is vertically fixed on the middle part of back underframe, and the upper end of vertical support frame is fixed on the middle part of leaning on pin; The middle part of underframe before the lower end of vertical support frame is fixed on; Longeron and vertical support frame constitute a triangular support, and at a plurality of pin joints of longeron outer setting, the inner of described swing span is hinged on frame longeron front end; The middle part of swing span and bracing frame the inner are hinged, and the outer end of bracing frame is hinged with a pin joint in a plurality of pin joints that are arranged on the longeron outside; The upper end of described fork is hinged on the upper end of vertical support frame, leans on the pin middle part to be fixed on the lower end of fork down; On the swing span of the frame that described plate for sleeping in is fixing; It is characterized in that: it also comprises two with top sheave, and these two with the rotating respectively vertical support frame middle part that is installed in fork middle part and frame of top sheave; One end of described drag rope of elasticity is articulated in fork top, and the other end is articulated on the back underframe of frame removably, the middle part solderless wrapped connection of drag rope of elasticity two with top sheave on.
2. the lie on the back improvement structure of plate of syllogic according to claim 1, it is characterized in that: described two is two with top sheave, these two pulleys are rotating respectively to be installed in the middle part of the vertical support frame of fork middle part and frame; One end of described drag rope of elasticity is articulated in fork top, and the other end is articulated on the back underframe of frame removably, and the middle part solderless wrapped connection of drag rope of elasticity is on these two pulleys.
3. the lie on the back improvement structure of plate of syllogic according to claim 2 is characterized in that: described two pulleys each other against.
4. the lie on the back improvement structure of plate of syllogic according to claim 1; It is characterized in that: described two is three with top sheave; A rotating fork middle part that is installed in these three pulleys, two rotating vertical support frame middle parts that are installed in frame in these three pulleys; One end of described drag rope of elasticity is articulated in fork top, and the other end is articulated on the back underframe of frame removably, the middle part of drag rope of elasticity walk around successively on two pulleys that are installed on the vertical support frame with the pulley that is installed on fork middle part on.
5. the lie on the back improvement structure of plate of syllogic according to claim 1, it is characterized in that: described fork is provided with the position that articulates more than two, and an end of described drag rope of elasticity is articulated in the position that articulates more than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203459815U CN202270298U (en) | 2011-09-15 | 2011-09-15 | Improved structure of three-section type sit up bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203459815U CN202270298U (en) | 2011-09-15 | 2011-09-15 | Improved structure of three-section type sit up bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202270298U true CN202270298U (en) | 2012-06-13 |
Family
ID=46190691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203459815U Expired - Fee Related CN202270298U (en) | 2011-09-15 | 2011-09-15 | Improved structure of three-section type sit up bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202270298U (en) |
-
2011
- 2011-09-15 CN CN2011203459815U patent/CN202270298U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20160915 |