CN213786091U - Student chair - Google Patents
Student chair Download PDFInfo
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- CN213786091U CN213786091U CN202022136857.XU CN202022136857U CN213786091U CN 213786091 U CN213786091 U CN 213786091U CN 202022136857 U CN202022136857 U CN 202022136857U CN 213786091 U CN213786091 U CN 213786091U
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- branch pipe
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- fixing
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Abstract
The utility model discloses a student chair, including seat support and chair leg support, the bilateral symmetry of seat support bottom is equipped with chair leg support, chair leg support includes: the upper branch pipe is connected with the chair seat, and the side surface of the upper branch pipe is provided with at least two adjusting holes along the extending direction; the lower branch pipe is sleeved outside the upper branch pipe, a fixing hole is formed in the side face, corresponding to the adjusting hole, of the lower branch pipe, a concentric fixing nut is arranged corresponding to the fixing hole, and the fixing nut is arranged on the outer surface of the lower branch pipe; and the fixing bolt sequentially penetrates through the fixing nut, the fixing hole and any one of the adjusting holes and is connected with the fixing nut. The utility model discloses a student's chair, easy operation avoids losing the fixed part in accommodation process.
Description
Technical Field
The utility model belongs to the technical field of student's articles for use, in particular to student's chair.
Background
Student's chair uses with the desk is supporting, and current student's chair can height-adjusting basically to satisfy the student of different heights and use, specific regulation structure generally does: the chair legs of the student chair adopt a telescopic rod structure, the outer tube or the inner tube of the telescopic rod structure is provided with screw holes of multiple levels of different heights, the chair legs are penetrated through one side of the chair legs by screws, the other side of the chair legs are screwed up with the screws by nuts to realize fixation, and therefore the height of the student chair is adjusted through the screw holes of the multiple levels of different heights.
By adopting the structure, when the height is adjusted in practical application, the screw needs to be completely screwed out to be separated from the chair leg, then the screw penetrates through the chair leg again after the height is adjusted, and then the screw is screwed up by the nut, so that the operation is complex, especially the student chair is used by students, and the loss of fixed parts such as the screw or the nut is easily caused.
Accordingly, the prior art is in need of improvement and development.
SUMMERY OF THE UTILITY MODEL
The utility model provides a student chair, easy operation avoids losing the static part in accommodation process.
For solving its technical problem, the utility model provides a pair of student's chair, including seat support and chair leg support, the bilateral symmetry of seat support bottom is equipped with chair leg support, chair leg support includes:
the upper branch pipe is connected with the chair seat, and the side surface of the upper branch pipe is provided with at least two adjusting holes along the extending direction;
the lower branch pipe is sleeved outside the upper branch pipe, a fixing hole is formed in the side face, corresponding to the adjusting hole, of the lower branch pipe, a concentric fixing nut is arranged corresponding to the fixing hole, and the fixing nut is arranged on the outer surface of the lower branch pipe;
and the fixing bolt sequentially penetrates through the fixing nut, the fixing hole and any one of the adjusting holes and is connected with the fixing nut.
Furthermore, an auxiliary branch pipe which moves relatively is arranged between the upper branch pipe and the lower branch pipe, the auxiliary branch pipe is provided with a bolt channel, and the bolt channel corresponds to all the adjusting holes.
Furthermore, a positioning boss is arranged at the upper end of the auxiliary branch pipe and abuts against the top of the lower branch pipe, a positioning concave arc is arranged on the positioning boss, and the vertical distance between the positioning concave arc and the fixing hole in the vertical direction is equal to the vertical distance between every two adjacent adjusting holes in the vertical direction.
Furthermore, the student chair further comprises a storage frame, two ends of the storage frame are connected with the lower support pipe through a height adjusting assembly, the height adjusting assembly comprises a movable guide rail, a movable connecting piece and a locking piece, the movable guide rail is provided with a C-shaped sliding groove, one end of the movable connecting piece is provided with a sliding portion, the sliding portion is slidably arranged in the C-shaped sliding groove and clamped in the C-shaped sliding groove, the other end of the movable connecting piece penetrates through the storage frame and is connected with the locking piece, the locking piece and the sliding portion are respectively clamped on the inner side of the C-shaped sliding groove and the inner side of the storage frame, the storage frame is connected with the movable guide rail, and the movable guide rail is connected with the lower support pipe.
Furthermore, the height adjusting assembly further comprises a supporting spring, one end of the supporting spring is tightly abutted to the bottom of the sliding part, and the other end of the supporting spring is tightly abutted to the lower end of the movable guide rail.
Furthermore, the chair leg support also comprises an underframe, the underframe is connected with the lower support pipe, chair legs are arranged at two ends of the underframe, and the chair legs can move up and down relative to the underframe.
Furthermore, the chair leg comprises a connecting rod and a supporting part, the bottom frame is provided with a connecting hole, the inner surface of the connecting hole is provided with a thread structure, the outer surface of the connecting rod is provided with a matched thread structure, one end of the connecting rod is in threaded connection with the connecting hole, and the other end of the connecting rod is fixedly connected with the supporting part.
Furthermore, the head of the fixing bolt is provided with a rotating piece, and the periphery of the rotating piece is provided with a boss.
The utility model discloses a student chair, through at the surface of lower branch pipe, set up fixation nut corresponding to the fixed orifices, pass fixation nut, fixed orifices regulation hole in proper order with fixing bolt and fix, when making the adjustment seat support height, fixing bolt need not to twist out completely and break away from chair leg support, only need twist out fixing bolt to its tip stretch out the upper branch pipe can, fixing bolt still connects on fixation nut at this moment, prevent effectively from losing fixed part from this; after the height of the chair seat is adjusted, the fixing bolt is screwed into the adjusting hole and screwed down, and the operation is simple and convenient.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a student chair of the present invention.
Fig. 2 is a partially enlarged view of the student chair shown in fig. 1.
Fig. 3 is a schematic structural view of another embodiment of the student chair of the present invention.
Fig. 4 is a partial structural schematic view of the student chair shown in fig. 3.
Fig. 5 is a schematic structural view of an auxiliary branch pipe of the student chair of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in fig. 1 and 2, the utility model relates to a student chair, including seat support 100 and chair leg support 200, the bilateral symmetry of this seat support 100 bottom is equipped with this chair leg support 200, and this chair leg support 200 includes: an upper branch pipe 210, the upper branch pipe 210 is connected with the chair seat 100, and the side surface of the upper branch pipe is provided with at least two adjusting holes 211 along the extending direction; the lower branch pipe 220 is sleeved outside the upper branch pipe 210, the side surface of the lower branch pipe 220 corresponding to the adjusting hole 212 is provided with a fixing hole, the fixing hole is provided with a concentric fixing nut 230, and the fixing nut 230 is arranged on the outer surface of the lower branch pipe 220; and a fixing bolt 240, wherein the fixing bolt 240 passes through the fixing nut 230, the fixing hole and any one of the adjusting holes 211 in sequence, and is connected with the fixing nut 230.
In specific application, the fixing bolt 240 is screwed out until the end part of the fixing bolt 240 is connected with the fixing nut 230, namely, the fixing bolt 240 is screwed out to be away from the upper branch pipe 210, the chair seat 100 is moved up and down to adjust the height, so that the corresponding adjusting hole 211 on the upper branch pipe 210 corresponds to the fixing hole, and the fixing bolt 240 is screwed in and tightened on the upper branch pipe 210, namely, the height adjustment of the student chair is completed. In the adjusting process, the fixing bolt does not need to be screwed out completely to be separated from the lower branch pipe, the bolt and the upper nut do not need to be driven again after the adjustment is finished, the operation is simple and convenient, and the loss of fixing parts such as the bolt, the nut and the like is effectively avoided. Specifically, the upper supporting tube 210 is provided with 7 adjusting holes 211 along the extending direction thereof at equal intervals, the chair seat 100 comprises a seat plate 110, a backrest plate 120 and an upper bracket 130, the upper bracket 130 is bent at a certain angle according to the sitting posture of the human body, the seat plate 110 and the backrest plate 120 are respectively installed on the upper bracket 130, and the upper supporting tube 210 is connected with the upper bracket 130. The leg support 200 further includes a bottom frame 250, the bottom frame 250 is connected to the lower support pipe 220, and the bottom frame 250 extends in a horizontal direction to improve the stability of the student chair. Preferably, a support pipe 260 is further connected between the two lower branch pipes 220 to improve the stability of the student chair. Specifically, most of the conventional chair legs are hollow sections, and in this embodiment, hollow sections may also be used for the upper supporting tube 210 and the lower supporting tube 220.
As shown in fig. 1 and 5, in some preferred embodiments, a relatively movable auxiliary branch pipe 270 is disposed between the upper branch pipe 210 and the lower branch pipe 220, and the auxiliary branch pipe 270 is provided with a bolt passage 271, and the bolt passage 271 corresponds to all the adjustment holes 211. In specific application, if the external contour of the upper branch pipe is completely matched with the inner cavity contour of the lower branch pipe, the upper branch pipe cannot shake when the chair leg support is stressed, the support is stable, but the friction of vertical movement is large when the height is adjusted, and the labor is great; if a certain gap is left between the upper branch pipe and the lower branch pipe, the upper branch pipe can move up and down conveniently during height adjustment, but when the chair leg support is stressed, the upper branch pipe can shake to influence the stability of support. Through set up auxiliary branch pipe 270 between last branch pipe 210 and lower branch pipe 220, can fill the space between last branch pipe 210 and the lower branch pipe 220, improve the steadiness that the chair leg support atress supported, simultaneously, reduce the frictional force that produces when going up the branch pipe and remove to a certain extent, do benefit to going on of adjustment work.
In some preferred embodiments, the upper end of the auxiliary branch pipe 270 is provided with a positioning boss 272, the positioning boss 272 abuts against the top of the lower branch pipe 220, the positioning boss 272 is provided with a positioning concave arc 273, and the vertical distance between the positioning concave arc 273 and the fixing hole is equal to the vertical distance between two adjacent adjusting holes 211. When one adjusting hole 211 corresponds to the positioning concave arc 273, it is described that one adjusting hole 211 corresponds to the fixing hole, and a user can assist in judging the alignment condition of the adjusting hole 211 and the fixing hole according to the positioning concave arc 273. In specific application, the seat 100 is firstly raised to a position slightly higher than a target height, the auxiliary branch pipe 270 is moved downwards to the position where the positioning boss 272 abuts against the top of the lower branch pipe 220, then the seat 100 is moved downwards to the target height, meanwhile, the alignment condition of the adjusting hole 211 and the fixing hole is judged in an auxiliary mode according to the positioning concave arc 273, and the fixing bolt 240 is screwed in.
In some preferred embodiments, the head of the fixing bolt 240 is provided with a rotating member 241, and the outer circumference of the rotating member 241 is provided with a boss 242. Therefore, a user can conveniently rotate and screw the fixing bolt.
As shown in fig. 3 and 4, in some preferred embodiments, the student chair further includes a storage frame 300, two ends of the storage frame 300 are connected to the lower support pipe 220 through a height adjustment assembly 400, the height adjustment assembly 400 includes a moving guide 410, a moving connector 420 and a locking member 430, the moving guide 410 is provided with a C-like sliding slot 411, one end of the moving connector 420 is provided with a sliding portion 421, the sliding portion 421 is slidably provided in the C-like sliding slot 411 and is clamped in the C-like sliding slot 411, the other end of the moving connector 420 penetrates through the storage frame 300 and is connected to the locking member 430, the locking member 430 and the sliding portion 421 are used for respectively clamping with the inner side of the storage frame 300 at the inner side of the C-like sliding slot 411 to connect the storage frame 300 with the moving guide 410, and the moving guide 410 is connected to the lower support pipe 220. Therefore, the user can adjust the setting height of the storage frame according to specific use conditions, for example, when large-size articles need to be placed, the height of the storage frame can be adjusted to be low. Specifically, the notch size of the C-shaped sliding groove 411 is smaller than the size of the sliding portion 421, so that the sliding portion 421 is caught in the C-shaped sliding groove 411; the storage frame 300 has a corresponding through hole for the movable connection member 420 to pass through. Specifically, the sliding portion 421 is preferably rectangular, and the length and width of the horizontal section of the sliding portion are matched with those of the C-shaped sliding slot 411, so as to facilitate the locking of the locking member 430; further, the two sets of height adjusting assemblies can be arranged in a staggered manner. Specifically, the movable connecting member 420 may be a bolt, the locking member 430 may be a nut, the sliding portion 421 is disposed at the head of the bolt, the bolt penetrates through the storage frame 300, and the storage frame 300 is clamped and fixed to the lower support pipe 220 by tightening the nut; when the height needs to be adjusted, the nut is unscrewed, and then the storage frame 300 moves up and down, and at the moment, the sliding piece 421 slides up and down along the C-shaped sliding groove 411.
In some preferred embodiments, the height adjustment assembly 400 further includes a support spring, one end of which abuts against the bottom of the sliding portion 421, and the other end of which abuts against the lower end of the moving guide 410. Therefore, the bearing capacity of the movable connecting piece on the storage frame is enhanced.
As shown in fig. 1 and 3, in some preferred embodiments, the two ends of the bottom frame 250 are provided with the legs 280, and the legs 280 can move up and down relative to the bottom frame 250. Specifically, the chair leg 280 includes a connecting rod 281 and a supporting portion 282, the bottom frame 250 is provided with a connecting hole, an inner surface of the connecting hole is provided with a screw structure, an outer surface of the connecting rod 281 is provided with a matching screw structure, one end of the connecting rod 281 is screwed with the connecting hole, and the other end is fixedly connected with the supporting portion 282. Thus, by rotating the adjustment support 282, the balance of the student chair can be adjusted, which can accommodate, for example, uneven ground in a particular application.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. The student chair is characterized by comprising a chair seat (100) and chair leg supports (200), wherein the chair leg supports (200) are symmetrically arranged on two sides of the bottom of the chair seat (100), and the chair leg supports (200) comprise:
the upper branch pipe (210) is connected with the seat (100), and the side surface of the upper branch pipe (210) is provided with at least two adjusting holes (211) along the extending direction;
the lower branch pipe (220) is sleeved outside the upper branch pipe (210), a fixing hole is formed in the side face, corresponding to the adjusting hole (211), of the lower branch pipe (220), a concentric fixing nut (230) is arranged corresponding to the fixing hole, and the fixing nut (230) is arranged on the outer surface of the lower branch pipe (220);
the fixing bolt (240) penetrates through the fixing nut (230), the fixing hole and any one of the adjusting holes (211) in sequence and is connected with the fixing nut (230).
2. The student chair according to claim 1, wherein a relatively movable auxiliary branch pipe (270) is provided between the upper branch pipe (210) and the lower branch pipe (220), the auxiliary branch pipe (270) is provided with a bolt passage (271), and the bolt passage (271) corresponds to all the adjusting holes (211).
3. The student chair as claimed in claim 2, wherein the upper end of the auxiliary branch pipe (270) is provided with a positioning boss (272), the positioning boss (272) abuts against the top of the lower branch pipe (220), the positioning boss (272) is provided with a positioning concave arc (273), and the vertical distance between the positioning concave arc (273) and the fixing hole in the vertical direction is equal to the vertical distance between two adjacent adjusting holes (211) in the vertical direction.
4. The student chair according to claim 1, further comprising a storage frame, wherein two ends of the storage frame (300) are connected with the lower branch pipes (220) through a height adjusting assembly (400), the height adjusting assembly (400) comprises a moving guide rail (410), a moving connecting piece (420) and a locking piece (430), the moving guide rail (410) is provided with a C-like sliding groove (411), one end of the moving connecting piece (420) is provided with a sliding part (421), the sliding part (421) is slidably arranged on the C-like sliding groove (411) and is clamped in the C-like sliding groove (411), the other end of the moving connecting piece (420) penetrates through the storage frame (300) and is connected with the locking piece (430), the locking piece (430) and the sliding part (421) are used for clamping with the inner side of the storage frame (300) at the inner side of the C-like sliding groove (411) respectively, so as to connect the object placing frame (300) with the moving guide rail (410), wherein the moving guide rail (410) is connected with the lower branch pipe (220).
5. The student chair according to claim 4, further comprising a support spring, one end of which abuts against the bottom of the sliding part (421), and the other end of which abuts against the lower end of the moving guide (410).
6. The student chair according to claim 1, wherein the leg support (200) further comprises a bottom frame (250), the bottom frame (250) is connected with the lower branch pipe (220), two ends of the bottom frame (250) are provided with chair feet (280), and the chair feet (280) can move up and down relative to the bottom frame (250).
7. The student chair according to claim 6, wherein the chair leg (280) comprises a connecting rod (281) and a supporting portion (282), the bottom frame (250) is provided with a connecting hole, an inner surface of the connecting hole is provided with a screw structure, an outer surface of the connecting rod (281) is provided with a matching screw structure, one end of the connecting rod (281) is screw-connected with the connecting hole, and the other end is fixedly connected with the supporting portion (282).
8. The student chair according to claim 1, wherein the head of the fixing bolt (240) is provided with a rotary member (241), and the outer circumference of the rotary member (241) is provided with a boss (242).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022136857.XU CN213786091U (en) | 2020-09-25 | 2020-09-25 | Student chair |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202022136857.XU CN213786091U (en) | 2020-09-25 | 2020-09-25 | Student chair |
Publications (1)
Publication Number | Publication Date |
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CN213786091U true CN213786091U (en) | 2021-07-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202022136857.XU Active CN213786091U (en) | 2020-09-25 | 2020-09-25 | Student chair |
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CN (1) | CN213786091U (en) |
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2020
- 2020-09-25 CN CN202022136857.XU patent/CN213786091U/en active Active
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