CN218738037U - Leg extension function iron stand - Google Patents
Leg extension function iron stand Download PDFInfo
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- CN218738037U CN218738037U CN202223258039.2U CN202223258039U CN218738037U CN 218738037 U CN218738037 U CN 218738037U CN 202223258039 U CN202223258039 U CN 202223258039U CN 218738037 U CN218738037 U CN 218738037U
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- connecting rod
- pivoted
- leg
- piece
- leg connecting
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Abstract
The utility model discloses a leg extends extension function iron stand. This shank extends extension function iron stand includes the base, the base both sides set up the extension subassembly, the extension subassembly includes shank mechanism, seat mechanism and back mechanism, shank mechanism includes big footrest, the middle part pin joint shank connecting rod one of big footrest, the middle part pin joint shank connecting rod two of shank connecting rod one, the little footrest of the other end pin joint of shank connecting rod two, the other end pin joint shank connecting rod three of shank connecting rod one, the other end pin joint shank connecting rod four of shank connecting rod three, the one end and the pin joint of little footrest pin joint of shank connecting rod four, other end pin joint shank connecting rod five, the afterbody pin joint shank connecting rod six of big footrest, the middle part and the pin joint of shank connecting rod two of shank connecting rod six, the other end pin joint shank connecting rod seven of shank connecting rod six, shank connecting rod seven and the pin joint of shank connecting rod four. The utility model provides a prior art can not all prop up shank and foot when leisure appearance and the appearance of lying to influence the problem of seat travelling comfort.
Description
Technical Field
The utility model relates to a house field of making, in particular to shank extends extension function iron stand.
Background
With the improvement of living standard of people, functional sofas and seats are more and more common in life. With the wide application of functional sofas, the requirement for the comfort of the sofa seat is higher and higher. The functional seat is generally provided with a functional iron frame, so that the seat can be switched into three states of sitting posture, leisure posture and lying posture. In order to avoid the rubbing of the leg mechanism of the functional iron frame with the ground when the leg mechanism is unfolded or folded, the extension length of the existing leg mechanism is relatively small, and for a person with a high leg length, the legs and the feet cannot be supported completely when the person is in a leisure posture or a lying posture, so that the comfort of the seat is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shank and foot can all be supported when leisure appearance and the appearance of lying to the shank that improves the seat travelling comfort extends extension function iron stand.
In order to achieve the above object, the utility model discloses a shank extends the technical scheme who adds extension function iron stand and adopt is:
the utility model provides a shank extends extension function iron stand, includes the base, and the base both sides are provided with the extension subassembly, and the extension subassembly includes shank mechanism, seat mechanism and back mechanism, shank mechanism includes big footrest, and the middle part pin joint of big footrest has shank connecting rod one, and the middle part pin joint of shank connecting rod one has shank connecting rod two, and the other end pin joint of shank connecting rod two has little footrest, and the other end pin joint of shank connecting rod one has shank connecting rod three, and the other end pin joint of shank connecting rod three has shank connecting rod four, and the one end and the little footrest pin joint of shank connecting rod four, and the other end pin joint has shank connecting rod five, the afterbody pin joint of big footrest has shank connecting rod six, and the middle part and the pin joint of shank connecting rod two of shank connecting rod six, and the other end pin joint of shank connecting rod seven has shank connecting rod seven, and the anterior and the four pin joints of shank connecting rod seven.
Preferably, the seventh leg connecting rod is fixedly connected with a first limiting pin, and the fourth leg connecting rod is provided with a first limiting surface and a second limiting surface which are matched with the first limiting pin.
Preferably, the seat mechanism comprises a front installation part and a rear installation part, one end of the front installation part is pivoted to the front portion of the base, the other end of the front installation part is pivoted with a first front rotating part, the other end of the first front rotating part is pivoted with an assembly side plate, the middle portion of the front installation part is pivoted with a second front rotating part, the other end of the second front rotating part is pivoted with a middle rotating part, the middle portion of the middle rotating part is pivoted with the assembly side plate, the other end of the middle rotating part is pivoted with a front supporting rod, one end of the rear installation part is pivoted with the rear portion of the base, the other end of the rear installation part is pivoted with a rear rotating part, the rear rotating part is pivoted with the assembly side plate, the rear rotating part is pivoted with a side connecting rod part, and the other end of the side connecting rod part is pivoted with the middle portion of the first front rotating part.
Preferably, the outer side of the first front rotating part is fixedly connected with a second limiting pin, the assembly side plate is provided with a third limiting surface matched with the second limiting pin, the leg connecting rod five is provided with a fourth limiting surface matched with the second limiting pin, the outer side of the rear rotating part is fixedly connected with a third limiting pin, the assembly side plate is provided with a fifth limiting surface matched with the third limiting pin, the inner side of the rear rotating part is fixedly connected with a fourth limiting pin, the rear supporting part is provided with a sixth limiting surface matched with the fourth limiting pin, the inner side of the middle rotating part is fixedly connected with a fifth limiting pin, the side connecting rod part is provided with a seventh limiting surface matched with the fifth limiting pin, the inner side of the assembly side plate is provided with a limiting protrusion, and the first front rotating part is provided with an eighth limiting surface matched with the limiting protrusion.
Preferably, still include drive arrangement, drive arrangement includes the push rod motor with the base rigid coupling, and the push rod motor orders about the slider and slides on the guide rail, slider both sides pin joint connecting rod, the connecting rod pin joint piece of bending, the piece rigid coupling actuating lever of bending, the actuating lever is worn out the assembly curb plate rigid coupling and is had drive connecting rod one, the other end pin joint of drive connecting rod one has drive connecting rod two, the other end and the five pin joints of shank connecting rod of drive connecting rod two.
Compared with the prior art, the utility model, have following advantage:
when the leg mechanism is folded, the fourth leg connecting rod drives the second leg connecting rod and the third leg connecting rod, the second leg connecting rod and the third leg connecting rod pull the first leg connecting rod, and the first leg connecting rod drives the large footrest to be close to the small footrest, so that the distance between the large footrest and the small footrest is shortened, and the large footrest is prevented from being wiped on the ground; when the leg mechanism is unfolded, the leg connecting rod four drives the leg connecting rods two and three, the leg connecting rods two and three push the leg connecting rod one, the leg connecting rod one drives the big footrest to be away from the small footrest, the distance between the big footrest and the small footrest is increased, legs and feet can be completely supported, the use requirements of people with long legs are met, and the comfort of the seat is improved.
Drawings
FIG. 1 is a schematic structural view of a leg extension and extension iron stand according to the present invention;
FIG. 2 is a rear elevational view of the extension assembly in the lying position;
figure 3 is a front view of the extension assembly in a lying position;
FIG. 4 is a rear elevational view of the extension assembly in the resting position;
FIG. 5 is a front view of the extension assembly in the leisure position;
FIG. 6 is a rear elevational view of the extension assembly in the seated position;
FIG. 7 is a front view of the extension assembly in a seated position;
fig. 8 is a schematic structural view of the driving device.
Wherein, 1 base, 11 side bottom bar, 12 front bottom bar, 13 back bottom bar, 2 extending component, 21 leg mechanism, 211 big footrest, 212 leg link I, 213 leg link II, 214 small footrest, 215 leg link III, 216 leg link IV, 2161 first limit surface, 2162 second limit surface, 217 leg link V, 2171 fourth limit surface, 218 leg link VI, 219 leg link seven, 2191 first limit pin, 22 seat mechanism, 221 front mounting piece, 222 back mounting piece, 2221 sixth limit surface, 223 front rotating piece I, 2231 eighth limit surface, 2232 second limit pin, 224 assembling side plates, 2241 limiting bulges, 2242 third limiting surfaces, 2243 fifth limiting surfaces, 225 front rotating part two, 226 middle rotating parts, 2261 fifth limiting pins, 227 front supporting rods, 228 rear rotating parts, 2281 third limiting pins, 2282 fourth limiting pins, 229 side connecting rod parts, 2291 seventh limiting surfaces, 23 backrest mechanisms, 231 backrest mounting plates, 232 rear supporting rods, 3 driving devices, 31 push rod motors, 32 sliding blocks, 33 guide rails, 34 connecting rods, 35 bending parts, 36 driving rods, 37 driving connecting rods I, 38 driving connecting rods II, 4 first supporting rods, 5 second supporting rods and 6 third supporting rods.
Detailed Description
The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.
As shown in fig. 1-8, a leg extension functional iron frame comprises a base 1, the base comprises two symmetrical side bottom rods 11, the front ends of the two side bottom rods are fixedly connected with a front bottom rod 12, the rear ends of the two side bottom rods are fixedly connected with a rear bottom rod 13, extension components 2 are respectively installed on the two side bottom rods, the extension components comprise a leg mechanism 21, a seat mechanism 22 and a backrest mechanism 23, the seat mechanism comprises a front installation part 221 and a rear installation part 222, the bottom end of the front installation part is pivotally connected to the front part of the side bottom rods, the top end of the front rotation part is pivotally connected with a first front rotation part 223, the other end of the first front rotation part is pivotally connected with a first assembly side plate 224, a limit protrusion 2241 is stamped on the assembly side plate, the first front rotation part is provided with an eighth limit surface 2231 matched with the limit protrusion, the outer side of the first front rotation part is fixedly connected with a second limit pin 2232, the assembly side plate is provided with a third limit surface 2242 matched with the second limit pin, the middle front rotation part 225 of the front rotation part, the other end of the front rotating piece II is pivoted with a middle rotating piece 226, the middle part of the middle rotating piece is pivoted with the assembly side plate, the other end of the middle rotating piece is pivoted with a front supporting rod 227, the bottom end of the rear mounting piece is pivoted with the rear part of the side bottom rod, the top end of the rear mounting piece is pivoted with a rear rotating piece 228, the rear rotating piece is pivoted with the assembly side plate, the outer side of the rear rotating piece is fixedly connected with a third limiting pin 2281, the assembly side plate is provided with a fifth limiting surface 2243 matched with the third limiting pin, the inner side of the rear rotating piece is fixedly connected with a fourth limiting pin 2282, the rear supporting piece is provided with a sixth limiting surface 2221 matched with the fourth limiting pin, the rear rotating piece is pivoted with a side connecting rod piece 229, the other end of the side connecting rod piece is pivoted with the middle part of the front rotating piece I, the inner side of the middle rotating piece is fixedly connected with a fifth limiting pin 2261, the side connecting rod piece is provided with a seventh limiting surface 2291 matched with the fifth limiting pin, the leg mechanism comprises a large footrest 211, the middle part of the big footrest is pivoted with a first leg connecting rod 212, the middle part of the first leg connecting rod is pivoted with a second leg connecting rod 213, the other end of the second leg connecting rod is pivoted with a small footrest 214, the other end of the first leg connecting rod is pivoted with a third leg connecting rod 215, the other end of the third leg connecting rod is pivoted with a fourth leg connecting rod 216, one end of the fourth leg connecting rod is pivoted with the small footrest, the other end of the fourth leg connecting rod is pivoted with a fifth leg connecting rod 217, the fifth leg connecting rod is provided with a fourth limiting surface 2171 matched with a second limiting pin, the tail end of the fifth leg connecting rod is pivoted with the front part of the assembling side plate, the tail part of the big footrest is pivoted with a sixth leg connecting rod 218, the middle part of the sixth leg connecting rod is pivoted with the second leg connecting rod, the other end of the sixth leg connecting rod is pivoted with a seventh leg connecting rod 219, the front part of the seventh leg connecting rod is pivoted with the fourth leg connecting rod, the tail part of the seventh leg connecting rod is pivoted with the front part of the assembling side plate, the seventh leg connecting rod is fixedly connected with a first limiting pin 2191, the fourth leg connecting rod is provided with a first limiting surface 2161 and a second limiting surface 2162 which are matched with the first limiting pin, the backrest mechanism comprises a backrest mounting plate 231 which is pivoted at the tail part of the assembly side plate, the backrest mounting plate is pivoted with a rear supporting rod 232, the bottom end of the rear supporting rod is pivoted with a rear rotating piece, a driving device 3 which drives the extension component to unfold or fold is arranged on the base, the driving device comprises a push rod motor 31 which is fixedly connected with the base, the push rod motor drives a sliding block 32 to slide on a guide rail 33, two sides of the sliding block are pivoted with connecting rods 34, the connecting rods are pivoted with a bending piece 35, the bending piece is fixedly connected with a driving rod 36, the driving rod penetrates through the assembly side plate and is fixedly connected with a driving connecting rod I37, the other end of the driving connecting rod I is pivoted with a driving connecting rod II 38, the other end of the driving connecting rod II is pivoted with the fifth leg connecting rod, a first supporting rod 4 is fixedly connected between the front mounting pieces at two sides, and a second supporting rod 5 is fixedly connected between the rear mounting pieces at two sides, and a third support rod 6 is arranged between the rear rotating parts at the two sides.
The utility model discloses a concrete working process and principle:
when the seat is switched from a sitting posture to a leisure posture, the push rod motor is started, the sliding block moves towards the direction of the front bottom rod, the connecting rod drives the driving rod to rotate, under the action of the driving connecting rod II, the leg connecting rod IV and the leg connecting rod V extend towards the front side, the leg connecting rod II and the leg connecting rod III push the leg connecting rod I to extend forwards, the large footrest is far away from the small footrest, the distance between the large footrest and the small footrest is increased, legs and feet can be completely supported, the use requirement of people with high body height and long legs is met, and the comfort of the seat is improved; when the leisure posture is switched to the sitting posture, the push rod motor is started, the sliding block moves towards the direction of the rear bottom rod, the connecting rod drives the driving rod to rotate reversely, the four and five leg connecting rods contract towards the rear side under the action of the driving connecting rod II, the leg connecting rod II and the leg connecting rod III pull the leg connecting rod I to contract backwards, the large footrest is close to the small footrest, the distance between the large footrest and the small footrest is shortened, and the large footrest is prevented from being wiped on the ground.
Claims (5)
1. The utility model provides a shank extends extension function iron stand, includes the base, and the base both sides are provided with the extension subassembly, and the extension subassembly includes shank mechanism, seat mechanism and back mechanism, its characterized in that: the leg mechanism comprises a large footrest, a first leg connecting rod is pivoted to the middle of the large footrest, a second leg connecting rod is pivoted to the middle of the first leg connecting rod, a second small footrest is pivoted to the other end of the second leg connecting rod, a third leg connecting rod is pivoted to the other end of the first leg connecting rod, a fourth leg connecting rod is pivoted to the other end of the third leg connecting rod, one end of the fourth leg connecting rod is pivoted with the small footrest, a fifth leg connecting rod is pivoted to the other end of the fourth leg connecting rod, a sixth leg connecting rod is pivoted to the tail of the large footrest, the middle of the sixth leg connecting rod is pivoted with the second leg connecting rod, a seventh leg connecting rod is pivoted to the other end of the sixth leg connecting rod, and the front part of the seventh leg connecting rod is pivoted with the fourth leg connecting rod.
2. The leg extension functional iron stand of claim 1, characterized in that: the seventh leg connecting rod is fixedly connected with a first limiting pin, and the fourth leg connecting rod is provided with a first limiting surface and a second limiting surface which are matched with the first limiting pin.
3. The leg extension functional iron stand of claim 1, characterized in that: the seat mechanism comprises a front mounting piece and a rear mounting piece, one end of the front mounting piece is pivoted to the front portion of the base, the other end of the front mounting piece is pivoted to a first front rotating piece, the other end of the front rotating piece is pivoted to an assembly side plate, the middle of the front mounting piece is pivoted to a second front rotating piece, the other end of the front rotating piece is pivoted to a middle rotating piece, the middle of the middle rotating piece is pivoted to the assembly side plate, the other end of the middle rotating piece is pivoted to a front supporting rod, one end of the rear mounting piece is pivoted to the rear portion of the base, the other end of the rear mounting piece is pivoted to a rear rotating piece, the rear rotating piece is pivoted to the assembly side plate, a side connecting rod piece is pivoted to the rear rotating piece, and the other end of the side connecting rod piece is pivoted to the middle of the first front rotating piece.
4. The leg extension functional iron stand of claim 3, wherein: the outer side of the first front rotating piece is fixedly connected with a second limiting pin, the assembling side plate is provided with a third limiting surface matched with the second limiting pin, the leg connecting rod five is provided with a fourth limiting surface matched with the second limiting pin, the outer side of the rear rotating piece is fixedly connected with a third limiting pin, the assembling side plate is provided with a fifth limiting surface matched with the third limiting pin, the inner side of the rear rotating piece is fixedly connected with a fourth limiting pin, the rear supporting piece is provided with a sixth limiting surface matched with the fourth limiting pin, the inner side of the middle rotating piece is fixedly connected with a fifth limiting pin, the side connecting rod piece is provided with a seventh limiting surface matched with the fifth limiting pin, the inner side of the assembling side plate is provided with a limiting protrusion, and the first front rotating piece is provided with an eighth limiting surface matched with the limiting protrusion.
5. The leg extension functional iron stand of claim 3, wherein: still include drive arrangement, drive arrangement include with the push rod motor of base rigid coupling, the push rod motor orders about the slider and slides on the guide rail, slider both sides pin joint connecting rod, the connecting rod pin joint piece of bending, the piece rigid coupling actuating lever of bending, the actuating lever wears out the assembly curb plate rigid coupling and has drive connecting rod one, the other end pin joint of drive connecting rod one has drive connecting rod two, the other end and the five pin joints of shank connecting rod of drive connecting rod two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258039.2U CN218738037U (en) | 2022-12-06 | 2022-12-06 | Leg extension function iron stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258039.2U CN218738037U (en) | 2022-12-06 | 2022-12-06 | Leg extension function iron stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218738037U true CN218738037U (en) | 2023-03-28 |
Family
ID=85679647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223258039.2U Active CN218738037U (en) | 2022-12-06 | 2022-12-06 | Leg extension function iron stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218738037U (en) |
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2022
- 2022-12-06 CN CN202223258039.2U patent/CN218738037U/en active Active
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