CN218127706U - Rotary fixing angle chain for chair - Google Patents
Rotary fixing angle chain for chair Download PDFInfo
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- CN218127706U CN218127706U CN202221785685.1U CN202221785685U CN218127706U CN 218127706 U CN218127706 U CN 218127706U CN 202221785685 U CN202221785685 U CN 202221785685U CN 218127706 U CN218127706 U CN 218127706U
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- support piece
- piece
- adjusting
- angle chain
- locking
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Abstract
The utility model discloses a rotatory fixed angle chain of chair, including angle chain seat and angle chain lid, be provided with circular regulation chamber in the angle chain seat, a semi-circular locking chamber has been seted up on the lateral wall in circular regulation chamber, integrated into one piece has the joint support lug on the outer wall of angle chain seat, be equipped with on the side of angle chain seat with circular regulation chamber go up the regulation guide way of intercommunication, circular regulation intracavity is provided with the angle modulation structure, the angle modulation structure is including location brace piece and regulation brace piece, it has the locking semicircle arch to fix a position the equal integrated into one piece on the border of brace piece and regulation brace piece, still be provided with the locking pin lever on the angle chain seat. The utility model discloses a structure sets up rationally, and structural component is few moreover, is favorable to reducing the processing cost to the dismouting and the maintenance operation of also being convenient for all are provided with a locking semicircle arch on location support piece and regulation support piece simultaneously, so only two lock card semicircle archs overlap and close and can carry out the locking location through the locking pin pole after adjusting, use steadily reliably, and the suitability is strong and the practicality is good.
Description
Technical Field
The utility model belongs to the technical field of chair angle modulation structure, concretely relates to rotatory fixed angle chain of chair.
Background
The seat is an indispensable product in life and work, the variety is various, the seat angle adjuster is mainly used for connecting a seat support and a seat back of the seat and adjusting the angle of the seat back, chinese patent No. 202010024874.6 discloses a seat back multi-angle adjusting angle adjuster, which mainly comprises a main angle adjusting locking mechanism and an auxiliary angle adjusting mechanism, and mainly realizes the adjusting operation by matching a main locking gear with an auxiliary locking gear, and is also provided with a hand wheel and a bayonet shaft to realize the limiting operation of the bayonet, so as to ensure the stable and reliable adjusting position, although the seat angle adjuster can meet the use requirements of general conditions, the whole structure of the seat angle adjuster is more in structural parts, the processing cost is higher, the seat angle adjuster is not beneficial to the dismounting and maintenance operation, and meanwhile, the seat angle adjuster is matched through the gear, is not beneficial to the adjusting control, and affects the use stability and reliability.
Disclosure of Invention
The utility model aims at providing a rotatory fixed angle chain of chair that the structure sets up rationally and be convenient for dismouting and maintenance operation.
The utility model provides a technical scheme is a rotatory fixed angle chain of chair, including angle chain seat and angle chain lid, be provided with circular regulation chamber in the angle chain seat, a semi-circular locking chamber has been seted up on the lateral wall in circular regulation chamber, semi-circular locking chamber with circular regulation chamber is linked together, integrated into one piece has the joint support lug on the outer wall of angle chain seat, be equipped with on the side of angle chain seat with the regulation guide slot of intercommunication on the circular regulation chamber, circular regulation intracavity is provided with the angle modulation structure, the angle modulation structure includes the location branch piece and adjusts the branch piece, the medial extremity of location branch piece and the medial extremity of adjusting the branch piece are circular, and centre of a circle department is connected through the round pin axle, uniform integrated into one piece has the locking semicircle arch on the border of location branch piece and regulation branch piece, the location branch piece is in carry out spacingly on the joint support lug, it is in the guide slot and can adjust the guide slot and use the round pin axle to rotate as the center with the round pin axle, still be provided with the locking pin pole on the angle chain seat, the locking pin axle is in the semicircular locking cavity, the locking pin axle and adjust the semicircle and make the guide slot rotate the round pin axle and go into through the round pin axle through two semicircle and go on the locating pin axle.
The utility model discloses a ratchet clamping device, including location brace piece, regulation brace piece, screens, U-shaped elastic piece, ratchet buckle piece, location brace piece and regulation brace piece, the medial extremity of location brace piece is provided with two arc walls, be provided with on the outer wall of arc wall and support a ratchet groove, two arc walls use the round pin axle to set up as central symmetry, the medial extremity of regulation brace piece is provided with two waist-shaped slotted holes, and two waist-shaped slotted holes use the round pin axle to set up as central symmetry, just the inner wall middle part of waist-shaped slotted hole is provided with the screens bump, be provided with the U-shaped shell fragment in the waist-shaped slotted hole, be equipped with ratchet buckle piece in the U-shaped shell fragment, when location brace piece and regulation brace piece are rotatory, ratchet buckle piece is beated and screens in the adjacent ratchet groove that supports.
The connecting support lug, the semicircular locking cavity and the adjusting guide groove are arranged in a Y shape.
The positioning support piece and the adjusting support piece are respectively fixed with an installation hole site, the connecting and supporting lug is integrally formed with an installation convex column, the positioning support piece is positioned on the connecting and supporting lug, and the installation convex column is buckled in the installation hole site.
The outer side end of the adjusting support piece is further connected with an installation piece, a positioning convex column is integrally formed on the installation piece, and when the adjusting support piece is connected with the installation piece, the positioning convex column is buckled in the installation hole.
The positioning support piece, the adjusting support piece and the ratchet buckling block are all metal structural bodies.
The corner chain seat, the corner chain cover and the mounting piece are all plastic structural bodies or metal structural bodies.
The utility model discloses positive effect has: the utility model has reasonable structure arrangement, few structural components, is favorable for reducing the processing cost, is convenient for disassembly, assembly and maintenance, and is provided with a locking semicircular bulge on the positioning support piece and the adjusting support piece, so that only two locking semicircular bulges can be overlapped for locking and positioning through the locking pin rod after adjustment, and the locking pin rod is stable and reliable in use, strong in applicability and good in practicability; and have two arc walls on the location brace, and have on the outer wall of arc wall to support the ratchet groove, cooperation U-shaped shell fragment and ratchet buckle piece, can also support to detain spacing, practical steady reliable through supporting the ratchet groove cooperation ratchet buckle piece when location brace is rotatory with the regulation brace.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the following specific embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention;
FIG. 3 is a schematic structural view of a positioning support plate of the present invention;
fig. 4 is a schematic structural view of the middle adjustment support piece of the present invention.
Reference numerals: the angle adjusting mechanism comprises an angle chain seat 1, an angle chain cover 2, a circular adjusting cavity 3, a semicircular locking cavity 4, a connecting and supporting lug 5, an adjusting guide groove 6, an angle adjusting structure 7, a positioning support piece 71, an adjusting support piece 72, a pin shaft 73, a locking semicircular bulge 74, a locking pin rod 8, an arc-shaped groove 9, a butting ratchet groove 10, a waist-shaped groove hole 11, a clamping convex point 12, a U-shaped elastic piece 13, a ratchet clamping block 14, an installation hole position 15, an installation convex column 16, an installation piece 17 and a positioning convex column 18.
Detailed Description
The technical solution is further explained by referring to the drawings in the above specification, and the specific description is as follows:
referring to fig. 1 to 4, a chair rotation fixing angle chain comprises an angle chain seat 1 and an angle chain cover 2, wherein in the embodiment, the angle chain seat, the angle chain cover and a mounting plate are all plastic structures or metal structures. And the two are positioned and fixed by a screw rod,
in the embodiment, in order to ensure the connection stability, a cover plate matched with the connecting and supporting lug is arranged on the angle chain cover, so that the positioning support piece is positioned between the connecting and supporting lug and the cover plate, and can also be directly connected with the connecting and supporting lug in the actual application process, and the angle chain cover can limit the position.
An adjusting guide groove 6 communicated with the circular adjusting cavity is formed in the side edge of the angle chain seat, and in the embodiment, the connecting and supporting lug, the semicircular locking cavity and the adjusting guide groove are arranged in a Y shape. The adjusting guide groove is mainly used for adjusting the space for the support piece to rotate and is arranged in a Y shape, so that when the adjusting support piece and the positioning support piece are close to a right-angle state, locking operation can be carried out through a locking pin rod in a semicircular locking cavity.
The angle adjusting structure 7 is arranged in the circular adjusting cavity, the angle adjusting structure 7 comprises a positioning support piece 71 and an adjusting support piece 72, the inner side end of the positioning support piece and the inner side end of the adjusting support piece are both circular, the circle centers of the positioning support piece and the adjusting support piece are connected through a pin shaft 73, in the embodiment, the pin shaft can be a circular shaft pin or a screw rod, the screw rod is fixed through a nut, the adjusting support piece and the positioning support piece can rotate relative to the screw rod, and locking semicircular protrusions 74 are integrally formed on the edges of the positioning support piece and the adjusting support piece. When its location piece and regulation piece are rotatory to become the contact right angle state, the protruding coincidence of two locking semicircles, the stable state in order to guarantee two structures of locking is carried out to rethread locking round pin pole.
In practical application process, the location support piece is in carry on spacingly on the connection support lug, it is in to adjust the support piece adjust in the guide way and can adjust the guide way and use the round pin axle to rotate as the center, still be provided with locking pin pole 8 on the angle chain seat, the locking pin pole is in semi-circular locking intracavity, the location support piece and the regulation support piece use the round pin axle to rotate as the center and make two locking semicircle protruding card go into semi-circular locking intracavity and carry out the locking location through locking pin pole.
The inner side end of the positioning support piece is provided with two arc-shaped grooves 9, the outer wall of each arc-shaped groove is provided with a supporting ratchet groove 10, the two arc-shaped grooves are symmetrically arranged by taking a pin shaft as a center, the inner side end of the adjusting support piece is provided with two waist-shaped groove holes 11, the two waist-shaped groove holes are symmetrically arranged by taking the pin shaft as a center, the middle of the inner wall of each waist-shaped groove hole is provided with a clamping convex point 12, the clamping convex point 12 is mainly used for clamping a U-shaped elastic piece to prevent the U-shaped elastic piece from loosening or shifting so as to ensure the use stability of the U-shaped elastic piece, the U-shaped elastic piece 13 is arranged in each waist-shaped groove hole, and a ratchet clamping block 14 is arranged in each U-shaped elastic piece. In the practical application process, when the positioning support piece and the adjusting support piece rotate relatively, the ratchet buckling block can abut against the U-shaped elastic piece, so that the adjacent abutting ratchet grooves jump and are clamped, and only when the external force is greater than the resistance between the ratchet buckling block and the abutting ratchet grooves, the adjustment can be continued.
In this embodiment, in an actual application process, the positioning support piece and the adjusting support piece are both fixed with mounting holes 15, the connection support protrusion is integrally formed with mounting bosses 16, the positioning support piece is located on the connection support protrusion, and the mounting bosses are fastened in the mounting holes. The outside end of adjusting a piece still is connected with installation piece 17, and this installation piece can be the plastic structure body, also can be the metal structure body, integrated into one piece has location projection 18 on the installation piece, and it is through installation projection and cooperation installation hole site, location projection cooperation installation hole site, can guarantee the stationarity and the reliability of a location piece and joint support lug junction, and the connection stationarity and the reliability of a piece are also adjusted to the installation piece simultaneously, avoid taking place relative displacement, adjust a piece with when the installation piece is connected, location projection buckle is in the installation hole site. In the practical application process, the seat support is fixed on the positioning support piece, the chair back is fixed on the adjusting support piece, and meanwhile, the connecting support lug and the corresponding mounting piece are further arranged on the chair back, so that the seat support is fixed on the connecting support lug while being mounted, and the chair back is fixed on the mounting piece at the same time, so that the connection stability and reliability are guaranteed.
The utility model has reasonable structure arrangement, few structural components, is favorable for reducing the processing cost, is convenient for disassembly, assembly and maintenance, and is provided with a locking semicircular bulge on the positioning support piece and the adjusting support piece, so that only two locking semicircular bulges can be overlapped for locking and positioning through the locking pin rod after adjustment, the use is stable and reliable, the applicability is strong and the practicability is good; and have two arc walls on the location brace, and have on the outer wall of arc wall to support the ratchet groove, cooperation U-shaped shell fragment and ratchet buckle piece, can also support to detain spacing, practical steady reliable through supporting the ratchet groove cooperation ratchet buckle piece when location brace is rotatory with the regulation brace.
The standard parts used in the present embodiment can be purchased directly from the market, and the non-standard structural parts described in the specification can also be obtained directly by processing according to the common general knowledge of the prior art without any doubt, and the connection mode of the parts adopts the conventional means matured in the prior art, and the machines, parts and equipment adopt the conventional models in the prior art, so that the detailed description is not given here.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.
Claims (7)
1. The utility model provides a rotatory fixed angle chain of chair, includes angle chain seat and angle chain lid, be provided with circular regulation chamber in the angle chain seat, a semi-circular locking chamber has been seted up on the lateral wall in circular regulation chamber, semi-circular locking chamber with circular regulation chamber is linked together its characterized in that: the angle adjusting mechanism is characterized in that a connecting and supporting lug is integrally formed on the outer wall of the angle chain seat, an adjusting guide groove communicated with the round adjusting cavity is formed in the side edge of the angle chain seat, an angle adjusting structure is arranged in the round adjusting cavity and comprises a positioning support piece and an adjusting support piece, the inner side end of the positioning support piece and the inner side end of the adjusting support piece are both round, the circle centers of the two ends of the positioning support piece and the adjusting support piece are connected through a pin shaft, locking semicircular bulges are integrally formed on the edges of the positioning support piece and the adjusting support piece, the positioning support piece is located on the connecting and supporting lug for limiting, the adjusting support piece is located in the adjusting guide groove and can rotate in the adjusting guide groove by taking the pin shaft as the center, a locking pin rod is further arranged on the angle chain seat and located in a semicircular locking cavity, and the positioning support piece and the adjusting support piece rotate by taking the pin shaft as the center to enable the two locking semicircular bulges to be clamped into the semicircular locking cavity and to be locked and positioned through the locking pin rod.
2. A chair rotationally fixed angle chain as claimed in claim 1, characterized in that: the inner side end of the positioning support piece is provided with two arc-shaped grooves, the outer wall of each arc-shaped groove is provided with a position supporting ratchet groove, the two arc-shaped grooves are symmetrically arranged by taking a pin shaft as a center, the inner side end of the adjusting support piece is provided with two waist-shaped groove holes, the two waist-shaped groove holes are symmetrically arranged by taking the pin shaft as a center, the middle part of the inner wall of each waist-shaped groove hole is provided with a clamping convex point, a U-shaped elastic piece is arranged in each waist-shaped groove hole, a ratchet clamping block is arranged in each U-shaped elastic piece, and when the positioning support piece and the adjusting support piece rotate, each ratchet clamping block jumps in the adjacent position supporting ratchet groove and clamps.
3. A chair rotationally fixed angle chain as claimed in claim 2, wherein: the connecting support lug, the semicircular locking cavity and the adjusting guide groove are arranged in a Y shape.
4. A chair rotationally fixed angle chain as claimed in claim 3, wherein: the positioning support piece and the adjusting support piece are respectively fixed with an installation hole site, the connecting and supporting lug is integrally formed with an installation convex column, the positioning support piece is positioned on the connecting and supporting lug, and the installation convex column is buckled in the installation hole site.
5. A chair rotationally fixed angle chain, according to claim 4, characterized in that: the outer side end of the adjusting support piece is further connected with an installation piece, a positioning convex column is integrally formed on the installation piece, and when the adjusting support piece is connected with the installation piece, the positioning convex column is buckled in the installation hole.
6. A chair rotationally fixed angle chain as claimed in claim 5, wherein: the positioning support piece, the adjusting support piece and the ratchet buckle block are all metal structural bodies.
7. A chair rotationally fixed angle chain as claimed in claim 6, wherein: the angle chain seat, the angle chain cover and the mounting piece are all plastic structural bodies or metal structural bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221785685.1U CN218127706U (en) | 2022-07-08 | 2022-07-08 | Rotary fixing angle chain for chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221785685.1U CN218127706U (en) | 2022-07-08 | 2022-07-08 | Rotary fixing angle chain for chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218127706U true CN218127706U (en) | 2022-12-27 |
Family
ID=84591862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221785685.1U Active CN218127706U (en) | 2022-07-08 | 2022-07-08 | Rotary fixing angle chain for chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218127706U (en) |
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2022
- 2022-07-08 CN CN202221785685.1U patent/CN218127706U/en active Active
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