CN214510367U - Backrest folding chair with adjustable backrest angle - Google Patents
Backrest folding chair with adjustable backrest angle Download PDFInfo
- Publication number
- CN214510367U CN214510367U CN202120756845.9U CN202120756845U CN214510367U CN 214510367 U CN214510367 U CN 214510367U CN 202120756845 U CN202120756845 U CN 202120756845U CN 214510367 U CN214510367 U CN 214510367U
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- stay tube
- stabilizer blade
- bracket
- folding chair
- folding
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Abstract
The utility model discloses a back folding chair of adjustable back angle, including the back stabilizer blade, the quantity of back stabilizer blade is two, and the center department movable mounting of one side is relative to two back stabilizer blades has a bottom bracket, and the top movable mounting on back stabilizer blade surface has preceding stabilizer blade, and the left side movable mounting of one side is relative to two preceding stabilizer blades has preceding stay tube one and preceding stay tube two, the top of preceding stay tube one and preceding stay tube two all with the left side swing joint on bottom bracket surface. The utility model discloses a set up folding connecting rod, keep off position regulating part, handrail, down guide mounting, guide bar, go up direction mounting, sliding sleeve, folding joint spare, back bracket, back stay tube one and two cooperations of back stay tube and use, have angle of adjustment's advantage, solved the unable nimble back angle of adjustment of current back folding chair, its inclination is fixed, can't satisfy user's multiple demand, have certain use restriction, reduced back folding chair use comfort's problem.
Description
Technical Field
The utility model relates to a folding chair technical field specifically is a back folding chair of adjustable back angle.
Background
The folding chair is light and can be folded, is convenient to move and saves space, is originally used for military use, and is commonly used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places.
In the in-service use process, people are different to the inclination angle demand of arm-chair, and the unable nimble back angle of adjusting of current back folding chair, and its inclination is fixed, can't satisfy user's multiple demand, has certain use restriction nature, has reduced the use comfort level of back folding chair.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a back folding chair of adjustable back angle possesses angle of adjustment's advantage, has solved the unable nimble back angle of adjustment of current back folding chair, and its inclination is fixed, can't satisfy user's multiple demand, has certain use restriction nature, has reduced back folding chair use comfort's problem.
In order to achieve the above object, the utility model provides a following technical scheme: a backrest folding chair with adjustable backrest angle comprises two rear support legs, wherein a bottom bracket is movably mounted at the center of one side opposite to the two rear support legs, a front support leg is movably mounted at the top of the surface of the rear support leg, a front support tube I and a front support tube II are movably mounted at the left side of one side opposite to the two front support legs, the tops of the front support tube I and the front support tube II are movably connected with the left side of the surface of the bottom bracket, a rear bracket is movably mounted at the right side of the top of the bottom bracket, armrests are movably mounted at the bottoms of the front surface and the back surface of the rear bracket, a gear adjusting piece is fixedly connected at the left side of the bottom of each armrest, a lower guide fixing piece is fixedly arranged at the center of the surface of the rear bracket, an upper guide fixing piece is fixedly arranged at the top of the surface of the rear bracket, and a guide rod is fixedly connected between the top of the lower guide fixing piece and the bottom of the upper guide fixing piece, the bottom cover on guide bar surface is equipped with the sliding sleeve, and the right side movable mounting of one side is relative to the back stabilizer blade has back supporting tube one and back supporting tube two after two, one side that back stabilizer blade was kept away from to back supporting tube one and back supporting tube two all with the surface swing joint of sliding sleeve, the equal swing joint in top on back supporting tube one and back supporting tube two surfaces has folding connecting rod, two one side swing joints that folding connecting rod is relative have folding connecting piece.
Preferably, the connecting sleeves are fixedly sleeved at the bottoms of the surfaces of the rear support leg and the front support leg, and anti-skid grains are formed at the bottoms of the connecting sleeves.
Preferably, a gear shifting clamping groove is formed in the surface of the gear adjusting part, and the top of one side, opposite to the two rear support legs, of the two rear support legs is fixedly connected with a positioning clamping block matched with the gear shifting clamping groove for use.
Preferably, the surface of the rear support leg is in sliding contact with the joint of the gear adjusting piece, and the first front support tube and the second front support tube, the first rear support tube and the second rear support tube are arranged in a staggered mode.
Preferably, the surface of the guide rod is in sliding contact with the connecting part of the sliding sleeve, and empty grooves matched with the folding connecting rods for use are formed in the front side and the rear side of the bottom of the folding connecting piece.
Preferably, the center of the surface of the first front supporting pipe and the center of the surface of the first rear supporting pipe are both arranged in a protruding mode, and the guide rod is located on the right side of the rear bracket.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a set up folding connecting rod, keep off position regulating part, handrail, down guide mounting, guide bar, go up direction mounting, sliding sleeve, folding joint spare, back bracket, back stay tube one and two cooperations of back stay tube and use, have angle of adjustment's advantage, solved the unable nimble back angle of adjustment of current back folding chair, its inclination is fixed, can't satisfy user's multiple demand, have certain use restriction, reduced back folding chair use comfort's problem.
2. The utility model discloses a setting back stabilizer blade and preceding stabilizer blade cooperation and using, can form triangle-shaped stable structure, user stability in use obtains increasing, support tube one and two cooperations of preceding support tube are used before setting up, can play the effect of stabilizing support to the bottom bracket, use through setting up adapter sleeve and anti-skidding line cooperation, can increase the frictional force that back stabilizer blade and preceding stabilizer blade slided and will overcome, prevent that back stabilizer blade and preceding stabilizer blade from sliding at will, use through setting up the cooperation of gear shifting draw-in groove and fixture block, can prevent to keep off gear adjusting part and back stabilizer blade and take place relative movement at will.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a right-side view of the structure of the present invention;
FIG. 3 is a schematic top view of the structure of the present invention;
fig. 4 is a schematic view of the storage structure of the present invention.
In the figure: the foldable bicycle comprises a rear supporting leg 1, a folding connecting rod 2, a gear adjusting part 3, a front supporting leg 4, a front supporting leg 5, a front supporting leg 6, a bottom bracket 7, a handrail 8, a lower guiding fixing part 9, a guiding rod 10, an upper guiding fixing part 11, a sliding sleeve 12, a folding connecting part 13, a rear bracket 14, a rear supporting leg 15, a rear supporting leg 16 and a rear supporting leg II.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a backrest folding chair capable of adjusting backrest angle comprises two rear support legs 1, two rear support legs 1 are movably mounted at the center of the opposite side of the two rear support legs 1, a front support leg 4 is movably mounted at the top of the surface of the rear support leg 1, a triangular stable structure can be formed by arranging the rear support legs 1 and the front support legs 4 to be matched for use, the use stability of a user is increased, a front support tube I5 and a front support tube II 6 are movably mounted at the left side of the opposite side of the two front support legs 4, the tops of the front support tube I5 and the front support tube II 6 are movably connected with the left side of the surface of the bottom bracket 7, the bottom of the front surface and the bottom of the back surface of the rear bracket 14 are movably mounted with armrests 8 by arranging the front support tube I5 and the front support tube II 6 to be matched for use, the bottom bracket 7 can be stably supported, the rear bracket 14 is movably mounted at the right side of the top of the bottom bracket 7, the left side of the bottom of the handrail 8 is fixedly connected with a gear adjusting part 3, the center of the surface of the rear bracket 14 is fixedly sleeved with a lower guide fixing part 9, the top of the surface of the rear bracket 14 is fixedly sleeved with an upper guide fixing part 11, a guide rod 10 is fixedly connected between the top of the lower guide fixing part 9 and the bottom of the upper guide fixing part 11, the bottom of the surface of the guide rod 10 is sleeved with a sliding sleeve 12, the right sides of the opposite sides of the two rear support legs 1 are movably provided with a rear support tube I15 and a rear support tube II 16, one sides of the rear support tube I15 and the rear support tube II 16 far away from the rear support legs 1 are movably connected with the surface of the sliding sleeve 12, the tops of the surfaces of the rear support tube I15 and the rear support tube II 16 are movably connected with folding connecting rods 2, one side of the opposite to the two folding connecting rods 2 is movably connected with a folding connecting part 13, the folding connecting rod 2 and the folding connecting piece 13 are matched for use, so that the mounting of the rear supporting tube I15 and the rear supporting tube II 16 is more stable;
the connecting sleeves are fixedly sleeved at the bottoms of the surfaces of the rear support leg 1 and the front support leg 4, anti-skid grains are arranged at the bottoms of the connecting sleeves, and the connecting sleeves and the anti-skid grains are matched for use, so that the friction force to be overcome when the rear support leg 1 and the front support leg 4 slide can be increased, and the rear support leg 1 and the front support leg 4 are prevented from sliding randomly;
the surface of the gear adjusting part 3 is provided with a gear shifting clamping groove, the tops of the opposite sides of the two rear support legs 1 are fixedly connected with positioning clamping blocks matched with the gear shifting clamping groove, and the gear adjusting part 3 and the rear support legs 1 can be prevented from moving relatively at will by arranging the gear shifting clamping groove and the positioning clamping blocks;
the surface of the rear support leg 1 is in sliding contact with the joint of the gear adjusting piece 3, and the front support tube I5, the front support tube II 6, the rear support tube I15 and the rear support tube II 16 are arranged in a staggered manner;
the surface of the guide rod 10 is in sliding contact with the joint of the sliding sleeve 12, the front side and the rear side of the bottom of the folding connecting piece 13 are both provided with empty grooves matched with the folding connecting rod 2 for use, and the folding connecting piece 13 can be prevented from blocking the rotation of the folding connecting rod 2 by arranging the empty grooves;
the centers of the surfaces of the front supporting pipe I5 and the rear supporting pipe I15 are both arranged in a convex manner, and the guide rod 10 is positioned on the right side of the rear bracket 14;
through setting up folding connecting rod 2, keep off position regulating part 3, handrail 8, lower direction mounting 9, guide bar 10, go up direction mounting 11, sliding sleeve 12, folding connecting piece 13, back bracket 14, back supporting tube 15 and two 16 cooperation uses of back supporting tube, angle of adjustment's advantage has, the unable nimble back angle of adjustment of current back folding chair has been solved, its inclination is fixed, can't satisfy user's multiple demand, there is certain use restriction, the problem of back folding chair use comfort has been reduced.
During the use, each part all is in the mounted state, when needs adjustment back angle, at first move up handrail 8, make on the back stabilizer blade 1 positioning fixture block break away from the draw-in groove of shifting gears on keeping off position adjusting part 3, then rotate back bracket 14, make sliding sleeve 12 slide on guide bar 10, can make back stabilizer blade 1 and keep off position adjusting part 3 and take place relative displacement simultaneously, adjustment positioning fixture block position, then move down handrail 8, reset the positioning fixture block and install in the draw-in groove of shifting gears, realize adjusting back angle, after the use is accomplished, fold the folding chair and accomodate, effectively save occupation space.
All parts used in the application document are standard parts and can be purchased from the market, the specific connection mode of all parts adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, and machines and parts adopt conventional models in the prior art, and detailed description is not given here.
In summary, the following steps: this back folding chair of adjustable back angle, through setting up folding connecting rod 2, keep off position regulating part 3, handrail 8, lower direction mounting 9, guide bar 10, go up direction mounting 11, sliding sleeve 12, folding connecting piece 13, back bracket 14, back supporting tube 15 and two 16 cooperation uses of back supporting tube, the advantage that has angle of adjustment, the unable nimble back angle of adjustment of current back folding chair has been solved, its inclination is fixed, can't satisfy user's multiple demand, there is certain use restriction, the problem of back folding chair use comfort has been reduced.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a back folding chair of adjustable back angle, includes back stabilizer blade (1), its characterized in that: the quantity of back stabilizer blade (1) is two, and the center department movable mounting of one side is relative to two back stabilizer blades (1) has a bottom bracket (7), stabilizer blade (4) before the top movable mounting on back stabilizer blade (1) surface, the left side movable mounting of one side is relative to two preceding stabilizer blades (4) has preceding supporting tube (5) and preceding supporting tube two (6), the top of preceding supporting tube (5) and preceding supporting tube two (6) all with the left side swing joint on bottom bracket (7) surface, the right side movable mounting at bottom bracket (7) top has a back bracket (14), the equal movable mounting in bottom of the positive surface of back bracket (14) and back surface has handrail (8), the left side fixedly connected with of handrail (8) bottom keeps off position adjusting part (3), the center department fixed cover on back bracket (14) surface is equipped with down direction mounting (9), the top fixed cover on back bracket (14) surface is equipped with direction mounting (11), fixedly connected with guide bar (10) between the top of direction mounting (9) and the bottom of last direction mounting (11) down, the bottom cover on guide bar (10) surface is equipped with sliding sleeve (12), and the right side movable mounting of two relative one sides of back stabilizer blade (1) has back stay tube one (15) and back stay tube two (16), one side that back stabilizer blade (1) was kept away from to back stay tube one (15) and back stay tube two (16) all with the surface swing joint of sliding sleeve (12), the equal swing joint in top on back stay tube one (15) and back stay tube two (16) surfaces has folding connecting rod (2), and two relative one side swing joints of folding connecting rod (2) have folding connecting piece (13).
2. The backrest folding chair with adjustable backrest angle as claimed in claim 1, wherein: the bottom on the surface of the rear supporting leg (1) and the front supporting leg (4) is fixedly sleeved with a connecting sleeve, and anti-skid grains are formed in the bottom of the connecting sleeve.
3. The backrest folding chair with adjustable backrest angle as claimed in claim 1, wherein: the surface of the gear adjusting part (3) is provided with a gear shifting clamping groove, and the tops of the opposite sides of the two rear support legs (1) are fixedly connected with positioning clamping blocks matched with the gear shifting clamping grooves for use.
4. The backrest folding chair with adjustable backrest angle as claimed in claim 1, wherein: the surface of back stabilizer blade (1) and the junction sliding contact who keeps off position regulating part (3), preceding stay tube (5) and preceding stay tube two (6), back stay tube one (15) and back stay tube two (16) are crisscross setting.
5. The backrest folding chair with adjustable backrest angle as claimed in claim 1, wherein: the connecting part of the surface of the guide rod (10) and the sliding sleeve (12) is in sliding contact, and empty grooves matched with the folding connecting rod (2) for use are formed in the front side and the rear side of the bottom of the folding connecting piece (13).
6. The backrest folding chair with adjustable backrest angle as claimed in claim 1, wherein: the center department on preceding stay tube (5) and back stay tube (15) surface is protruding setting, guide bar (10) are located the right side of back bracket (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120756845.9U CN214510367U (en) | 2021-04-14 | 2021-04-14 | Backrest folding chair with adjustable backrest angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120756845.9U CN214510367U (en) | 2021-04-14 | 2021-04-14 | Backrest folding chair with adjustable backrest angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214510367U true CN214510367U (en) | 2021-10-29 |
Family
ID=78274039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120756845.9U Active CN214510367U (en) | 2021-04-14 | 2021-04-14 | Backrest folding chair with adjustable backrest angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214510367U (en) |
-
2021
- 2021-04-14 CN CN202120756845.9U patent/CN214510367U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |