CN209202482U - Backrest of rotary chair elevating mechanism - Google Patents
Backrest of rotary chair elevating mechanism Download PDFInfo
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- CN209202482U CN209202482U CN201821584522.0U CN201821584522U CN209202482U CN 209202482 U CN209202482 U CN 209202482U CN 201821584522 U CN201821584522 U CN 201821584522U CN 209202482 U CN209202482 U CN 209202482U
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- hole
- backrest
- elevating mechanism
- matching hole
- rotary chair
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Abstract
The utility model belongs to chair technology field more particularly to a kind of backrest of rotary chair elevating mechanism.It solves the prior art and adjusts the technical problems such as inconvenience.This backrest of rotary chair elevating mechanism includes fixed seat frame and the fixed column that is connected on rear side of fixed seat frame, mechanism further includes back rest supports column, matching hole is equipped in the lower end of back rest supports column and fixed column inserts in the matching hole, several adjustment holes being arranged along matching hole axially spaced-apart are equipped on the hole wall of matching hole, it inserts in one end in matching hole in fixed column and is equipped with one end of U-shaped resilient locking element and U-shaped resilient locking element and insert in any one adjustment hole, insert in be equipped between one end in matching hole and back rest supports column in fixed column and adjust guiding mechanism.Utility model has the advantages that it is more preferable to adjust more convenient and stability.
Description
Technical field
The invention belongs to chair technology field more particularly to a kind of backrest of rotary chair elevating mechanisms.
Background technique
Chair is the common daily necessity of one of life.
The structure of chair includes bracket and the cushion that is fixed on bracket, and backrest is equipped on bracket.
Its two kind with fixed and lift of existing many backrests, and the backrest of lift its lift adjustment its adopt
It is locked after being adjusted with screw etc. mode.
Its lift adjustment of this mode is relatively complicated and adjusting stability is poor.
Summary of the invention
Regarding the issue above, the present invention provides a kind of adjusting better backrest of rotary chair of more convenient and stability
Elevating mechanism.
In order to achieve the above objectives, present invention employs following technical proposals: this backrest of rotary chair elevating mechanism includes fixing seat
Frame and the fixed column being connected on rear side of fixed seat frame, mechanism further includes back rest supports column, is set in the lower end of back rest supports column
There is matching hole and fixed column inserts in the matching hole, is equipped on the hole wall of matching hole several along matching hole axially spaced-apart
The adjustment hole of setting is equipped with the one of U-shaped resilient locking element and U-shaped resilient locking element in one end that fixed column inserts in matching hole
End inserts in any one adjustment hole, inserts between one end in matching hole and back rest supports column in fixed column and is equipped with adjusting guiding
Mechanism.
U-shaped resilient locking element is made of a metal bar material bending.
Matching hole and fixed column are designed, axial guiding can be formed, the stability of lift adjustment can be improved.
Adjustment hole and U-shaped resilient locking element are designed, when needing to carry out lift adjustment, U-shaped resilient locking element is outside at this time
One end in adjustment hole is inserted under the adjusting of power and is detached from adjustment hole, discharges external force at this time behind lifting to setting position and forces U
The corresponding one end of shape resilient locking element simultaneously inserts in adjustment hole, reaches the height adjustment of backrest height.
The adjusting guiding mechanism of design, can be further improved the regularity and stability of lift adjustment.
In above-mentioned backrest of rotary chair elevating mechanism, the adjusting guiding mechanism include be located at adjustment hole in and with fixation
The guide runner of column vertical sliding connection, at least one waist-shaped hole is equipped in fixed column, is fixed at least on guide runner
A piece guide pin for running through the waist-shaped hole and being connect with back rest supports column.
Moved by guide pin along waist-shaped hole, the regularity and stability of lifting moving can be improved, meanwhile, also into
One step improves whole structural strength.
Alternatively scheme, the adjusting guiding mechanism includes the guide rail and slide block structure being mutually slidably connected.
In above-mentioned backrest of rotary chair elevating mechanism, the fixed column back side is equipped with strip groove, and guide runner is located at
In strip groove and the two sides of guide runner and the cell wall of strip groove are slidably connected, and stick in the middle part of U-shaped resilient locking element
One side of the guide runner far from strip groove slot bottom.
The design of strip groove can expand the contact area with guide runner, and can be further improved sliding
Regularity and stability.
U-shaped resilient locking element can force guide runner to have the trend moved to human body side.
In above-mentioned backrest of rotary chair elevating mechanism, the guide runner includes back plate and is connected to back plate front surface
Slide plate is equipped with the elastic construction one contacted with strip groove slot bottom on slide plate, and the cell wall with strip groove is equipped on slide plate
The elastic construction two of contact sticks on back plate rear surface in the middle part of U-shaped resilient locking element.
The elastic construction one of design may insure that U-shaped resilient locking element is contacted with guide runner always.
The elastic construction two of design can provide backrest by elastic buffer of the left and right after twisted and rebound.
In above-mentioned backrest of rotary chair elevating mechanism, the elastic construction one includes that hanging for slide plate upper and lower ends is arranged in
Arm-type elastic slice is equipped with lug boss close to the one side of strip groove in the free end of every piece of cantilevered elastic slice, and lug boss is recessed with bar shaped
The slot bottom of slot contacts.Two pieces of cantilevered elastic slices are symmetrical set.
Cantilevered elastic slice its may insure the elastic property of upper and lower side.
In above-mentioned backrest of rotary chair elevating mechanism, the back plate upper and lower ends are respectively equipped with and the cantilevered bullet
The one-to-one resigning breach of piece.
The resigning breach of design, the resigning after may insure cantilevered elastic slice elastic deformation.
In above-mentioned backrest of rotary chair elevating mechanism, the elastic construction two is convex on slide plate two sides including being arranged in
Item is respectively equipped with cantilever type elastic portion at the both ends of every raised line, and cantilever type elastic portion is contacted with the slot bottom of strip groove.Back plate
Between two pieces of raised lines.
It not only increases structural strength to raised line, but also the fixed stability of back plate can be improved.
In above-mentioned backrest of rotary chair elevating mechanism, there are two the waist-shaped holes and is parallel to each other, and slide plate is close to human body
Set there are two recessing groove and slide plate be equipped with recessing groove while form four and contacted with the slot bottom of strip groove, it is described
Recessing groove and waist-shaped hole correspond.
The structure its may insure the stability and ride comfort of lift adjustment.
In above-mentioned backrest of rotary chair elevating mechanism, the matching hole is rectangular opening, and the fixed column inserts in cooperation
One end transversal cross-section in hole is in rectangle and the rectangular opening matches.
Its stability that lift adjustment can be improved of the structure, avoids mutual circumferentially rotate.
In above-mentioned backrest of rotary chair elevating mechanism, the back rest supports column includes the sheet that rear side has locating recesses slot
Body, and by the closed cover board of the notch of locating recesses slot, above-mentioned matching hole is formed between the ontology and cover board.
Its is easy to disassemble for the structure.
The periphery of cover board is equipped with several buckles, blocks one by one equipped with several for the buckle on the cell wall of locating recesses slot
The bayonet entered.
Compared with prior art, the advantages of this backrest of rotary chair elevating mechanism, is:
1, adjustment hole and U-shaped resilient locking element are designed, when needing to carry out lift adjustment, U-shaped resilient locking element exists at this time
One end in adjustment hole is inserted under the adjusting of external force and is detached from adjustment hole, discharges external force at this time behind lifting to setting position and is forced
The corresponding one end of U-shaped resilient locking element simultaneously inserts in adjustment hole, reaches the height adjustment of backrest height.
2, the adjusting guiding mechanism designed, can be further improved the regularity and stability of lift adjustment.
3, matching hole and fixed column are designed, axial guiding can be formed, the stability of lift adjustment can be improved.
4, structure is simple and manufacture easy to process.
Detailed description of the invention
Fig. 1 is revolving chair structure schematic diagram provided by the invention.
Fig. 2 is swivel chair schematic cross-sectional view provided by the invention.
Fig. 3 is enlarged structure schematic diagram at A in Fig. 2.
Fig. 4 is structural schematic diagram provided by the invention.
Fig. 5 is the local explosion structure diagram of Fig. 4.
Fig. 6 is guide runner configuration schematic diagram provided by the invention.
In figure, fixed seat frame a1, fixed column a2, waist-shaped hole a21, strip groove a22, back rest supports column a3, matching hole
A31, adjustment hole a32, ontology a33, locating recesses slot a331, cover board a34, U-shaped resilient locking element a4, guide runner a5, guiding
Sell a51, back plate a52, resigning breach a521, slide plate a53, cantilevered elastic slice a54, lug boss a55, raised line a56, cantilever type elastic
Portion a57.
Specific embodiment
Below be invention specific embodiment and in conjunction with attached drawing, technical scheme of the present invention will be further described, but
Invention is not limited to these embodiments.
As shown in Figure 1, this backrest of rotary chair elevating mechanism includes fixed seat frame a1 and is connected on fixed seat frame a1 rear side
The transversal cross-section of fixed column a2, fixed column a2 are in rectangle.
As shown in Figs 1-4,
Further include back rest supports column a3, is equipped with matching hole a31 in the lower end of back rest supports column a3 and fixed column a2 inserts in institute
In the matching hole a31 stated, specifically, the back rest supports column a3 of the present embodiment includes the ontology that rear side has locating recesses slot a331
A33, and formed by the closed cover board a34 of the notch of locating recesses slot a331, between the ontology a33 and cover board a34
The matching hole a31 stated.
Several adjustment hole a32 being arranged along matching hole a31 axially spaced-apart are equipped on the hole wall of matching hole a31, solid
One end that one end that fixed column a2 is inserted in matching hole a31 is equipped with U-shaped resilient locking element a4 and U-shaped resilient locking element a4, which inserts in, appoints
It anticipates in an adjustment hole a32, is equipped with to adjust between one end that fixed column a2 is inserted in matching hole a31 and back rest supports column a3 and lead
To mechanism.
Specifically, the adjusting guiding mechanism of the present embodiment include be located at adjustment hole a32 in and with fixed column a2 vertical sliding
The guide runner a5 of connection is equipped at least one waist-shaped hole a21 on fixed column a2, at least one is fixed on guide runner a5
The guide pin a51 that root runs through the waist-shaped hole a21 and connect with back rest supports column a3.Prioritization scheme, the waist-shaped hole of the present embodiment
There are two a21 and is parallel to each other,
And guide pin a51 also has two and is inserted in the waist-shaped hole a21 one by one.
As shown in figures 1 to 6,
It is equipped with strip groove a22 at the back side fixed column a2, guide runner a5 is located in strip groove a22 and guide runner a5
Two sides and the cell wall of strip groove a22 be slidably connected, guide runner a5 is sticked in the middle part of U-shaped resilient locking element a4 far from item
The one side of connected in star a22 slot bottom.
That is, set on fixed column a2 there are two the lock piece being located between two waist-shaped hole a21 insertion hole, it is underlying
It is blind hole that lock piece, which is inserted into hole, and the lock piece insertion hole being located above is through-hole, and the lower end of U-shaped resilient locking element a4 inserts in blind hole
In, and the upper end of U-shaped resilient locking element a4 through through-hole and stretches in any one adjustment hole a32.
When needing to adjust height, forcing U-shaped resilient locking element a4 by external force at this time, deformation occurs to be detached from originally
Adjustment hole a32 discharge external force at this time when the relatively fixed column a2 of back rest supports column a3 is moved to required position, and U-shaped
Resilient locking element a4, which then resets, to be inserted in corresponding adjustment hole a32.
When back rest supports column a3 lifting, the also synchronization lifting of guide runner a5 at this time, it is ensured that lifting moving it is smooth
Property and stability.
Specifically, the guide runner a5 of the present embodiment includes back plate a52 and the slide plate a53 for being connected to back plate a52 front surface,
Two connecting pins are equipped between back plate a52 and slide plate a53.
The elastic construction one contacted with strip groove a22 slot bottom, specifically, the institute of the present embodiment are equipped on slide plate a53
The elastic construction one stated includes that the cantilevered elastic slice a54 of slide plate a53 upper and lower ends is arranged in, every piece of cantilevered elastic slice a54's
Free end is equipped with lug boss a55 close to the one side of strip groove a22, and lug boss a55 is contacted with the slot bottom of strip groove a22.Two
Block cantilevered elastic slice a54 is symmetrical set.
It is allowed correspondingly secondly, being respectively equipped in the back plate a52 upper and lower ends with the cantilevered elastic slice a54
Position notch a521.
The elastic construction two contacted with the cell wall of strip groove a22 is equipped on slide plate a53, U-shaped resilient locking element a4's
Middle part sticks on back plate a52 rear surface.Specifically, the elastic construction two of the present embodiment includes being arranged on the two sides slide plate a53
Raised line a56, be respectively equipped with cantilever type elastic portion a57 at the both ends of every raised line a56, cantilever type elastic portion a57 and bar shaped are recessed
The slot bottom of slot a22 contacts.Back plate a52 is located between two pieces of raised line a56.
In addition, in slide plate a53 close to human body when setting there are two recessing groove and slide plate a53 is equipped with the while shape of recessing groove
Cheng Sigen is contacted with the slot bottom of strip groove a22, and the recessing groove and waist-shaped hole a21 are corresponded.
Recessing groove improves the ride comfort of relative motion which reduce contact area.
In addition, the matching hole a31 of the present embodiment is rectangular opening, the fixed column a2 inserts in one end in matching hole a31
Transversal cross-section is in rectangle and the rectangular opening matches.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. backrest of rotary chair elevating mechanism, which is characterized in that mechanism includes fixed seat frame (a1) and is connected to fixed seat frame (a1)
Fixed column (a2) on rear side, mechanism further include back rest supports column (a3), are equipped with cooperation in the lower end of back rest supports column (a3)
Hole (a31) and fixed column (a2) insert in the matching hole (a31), be equipped on the hole wall of matching hole (a31) it is several along
The adjustment hole (a32) of matching hole (a31) axially spaced-apart setting, wears in one end that fixed column (a2) inserts in matching hole (a31)
There is one end of U-shaped resilient locking element (a4) and U-shaped resilient locking element (a4) to insert in any one adjustment hole (a32), in fixation
Column (a2), which inserts in be equipped between one end in matching hole (a31) and back rest supports column (a3), adjusts guiding mechanism.
2. backrest of rotary chair elevating mechanism according to claim 1, which is characterized in that the adjusting guiding mechanism includes position
The guide runner (a5) connecting in adjustment hole (a32) and with fixed column (a2) vertical sliding is equipped with extremely on fixed column (a2)
A few waist-shaped hole (a21), be fixed on guide runner (a5) at least one through the waist-shaped hole (a21) and with backrest branch
The guide pin (a51) of dagger (a3) connection.
3. backrest of rotary chair elevating mechanism according to claim 2, which is characterized in that described back side fixed column (a2) is equipped with
Strip groove (a22), guide runner (a5) is located in strip groove (a22) and two sides and the strip groove of guide runner (a5)
(a22) cell wall is slidably connected, and guide runner (a5) is sticked in the middle part of U-shaped resilient locking element (a4) far from strip groove
(a22) one side of slot bottom.
4. backrest of rotary chair elevating mechanism according to claim 3, which is characterized in that after the guide runner (a5) includes
Plate (a52) and the slide plate (a53) for being connected to back plate (a52) front surface are equipped with and strip groove (a22) slot on slide plate (a53)
The elastic construction one of bottom contact, is equipped with the elastic construction two contacted with the cell wall of strip groove (a22), U-shaped on slide plate (a53)
Back plate (a52) rear surface is sticked in the middle part of resilient locking element (a4).
5. backrest of rotary chair elevating mechanism according to claim 4, which is characterized in that the elastic construction one includes setting
It is recessed close to bar shaped in the free end of every piece of cantilevered elastic slice (a54) in the cantilevered elastic slice (a54) of slide plate (a53) upper and lower ends
The one side of slot (a22) is equipped with lug boss (a55), and lug boss (a55) is contacted with the slot bottom of strip groove (a22).
6. backrest of rotary chair elevating mechanism according to claim 5, which is characterized in that described back plate (a52) upper and lower ends
It is respectively equipped with and the one-to-one resigning breach (a521) of the cantilevered elastic slice (a54).
7. backrest of rotary chair elevating mechanism according to claim 4, which is characterized in that the elastic construction two includes setting
Raised line (a56) on the two sides slide plate (a53) is respectively equipped with cantilever type elastic portion at the both ends of every raised line (a56)
(a57), cantilever type elastic portion (a57) is contacted with the slot bottom of strip groove (a22).
8. backrest of rotary chair elevating mechanism according to claim 4, which is characterized in that there are two the waist-shaped holes (a21)
And be parallel to each other, slide plate (a53) is close to human body when setting there are two recessing groove and slide plate (a53) is equipped with the while shape of recessing groove
Cheng Sigen is contacted with the slot bottom of strip groove (a22), and the recessing groove and waist-shaped hole (a21) are corresponded.
9. backrest of rotary chair elevating mechanism according to claim 1, which is characterized in that the matching hole (a31) is rectangle
Hole, one end transversal cross-section that the fixed column (a2) inserts in matching hole (a31) is in rectangle and the rectangular opening matches.
10. backrest of rotary chair elevating mechanism according to claim 1, which is characterized in that back rest supports column (a3) packet
The ontology (a33) that rear side has locating recesses slot (a331) is included, and by the closed cover board of notch of locating recesses slot (a331)
(a34), it is formed between the ontology (a33) and cover board (a34) above-mentioned matching hole (a31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821584522.0U CN209202482U (en) | 2018-09-27 | 2018-09-27 | Backrest of rotary chair elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821584522.0U CN209202482U (en) | 2018-09-27 | 2018-09-27 | Backrest of rotary chair elevating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209202482U true CN209202482U (en) | 2019-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821584522.0U Active CN209202482U (en) | 2018-09-27 | 2018-09-27 | Backrest of rotary chair elevating mechanism |
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| CN (1) | CN209202482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124140A (en) * | 2018-09-27 | 2019-01-04 | 浙江粤强家具科技有限公司 | Backrest of rotary chair elevating mechanism |
-
2018
- 2018-09-27 CN CN201821584522.0U patent/CN209202482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124140A (en) * | 2018-09-27 | 2019-01-04 | 浙江粤强家具科技有限公司 | Backrest of rotary chair elevating mechanism |
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