CN210095171U - Chair leg extending and connecting structure - Google Patents
Chair leg extending and connecting structure Download PDFInfo
- Publication number
- CN210095171U CN210095171U CN201921031324.6U CN201921031324U CN210095171U CN 210095171 U CN210095171 U CN 210095171U CN 201921031324 U CN201921031324 U CN 201921031324U CN 210095171 U CN210095171 U CN 210095171U
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- CN
- China
- Prior art keywords
- piece
- extending
- extending piece
- chair leg
- pin
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- Expired - Fee Related
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A chair leg extending and connecting structure is arranged on a chair leg and comprises a connecting piece, a bottom plate and a connecting part. One end of the connecting piece is connected with the bottom plate, the connecting part is arranged at the other end of the connecting piece, and the connecting part is used for being fixed with the chair leg. Therefore, the utility model discloses can increase the holding power of seat effectively, prevent that the seat from taking the problem of direct toppling backwards of chair because of the focus unstability even people, avoid causing the injured situation of user to take place.
Description
Technical Field
The present invention relates to a chair leg extending and connecting structure, and more particularly to a chair leg extending and connecting structure disposed on a chair leg of a foldable chair for increasing the supporting force of the chair leg to prevent the chair from tilting backward.
Background
The folding seat is a foldable and storable chair, and when the chair is not used, the occupied space can be reduced by folding the folding seat, so that the chair is convenient to store and carry.
Fig. 1 is a side view of a conventional folding seat. As shown in fig. 1, the conventional folding seat includes a front leg frame 90, a seat cushion 92, and a rear leg frame 93, wherein the front leg frame 90 includes a seat back 91; the front leg 90 is pivotally connected to the rear leg 93, and the front leg 90 is pivotally connected to the seat cushion 92, so that the conventional foldable seat has the characteristics of being capable of being turned and folded.
However, the conventional folding seat has a problem of center of gravity shift, and as can be seen from a side view of the conventional folding seat, the top of the seat back 91 of the conventional folding seat has a position a, the position a extends vertically to the ground 85 to have a position C, and the position C is a distance D from the position B of the rear foot rest 93, so that the center of gravity balance point of the conventional folding seat falls at the position B of the rear foot rest 93; when a user sits on the folding seat, if the user leans back slightly, the center of gravity may be unstable and may tilt backward.
Furthermore, another foldable seat of the prior art has a cushion 92 with a resilient structure, when the user leaves the cushion 92, the cushion 92 will be resiliently folded, and at this time, if the user sits down without paying attention, the user will be injured due to the unstable center of gravity and the direct backward tilting of the seat.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a chair leg extending connection structure, which is disposed on the chair leg of a foldable chair, and increases the supporting force of the chair leg to prevent the chair from tilting backward.
In order to achieve the above object, the present invention provides a chair leg extending structure for being disposed on a chair leg, the chair leg extending structure includes a connecting piece, a bottom plate and a connecting portion.
One end of the connecting piece is connected with the bottom plate, the connecting part is arranged at the other end of the connecting piece, and the connecting part is used for being fixed with the chair leg.
In an embodiment of the present invention, the chair leg extending and connecting structure further includes a pin, the connecting portion further includes a connecting piece, a first extending piece and a second extending piece, the first extending piece and the second extending piece are respectively disposed on two sides of the connecting piece, each of which includes a hole, and the pin is inserted into the holes, so that the chair leg is fixed between the connecting piece, the first extending piece, the second extending piece and the pin.
Preferably, the bolt includes a wrench portion and a pin portion, the wrench portion is disposed at one end of the pin portion, and the other end of the pin portion is respectively disposed through the hole of the first extending piece and the hole of the second extending piece.
Wherein, an angle is formed between the wrench part and the pin part.
In an embodiment of the present invention, the bolt further includes a positioning portion, the pin portion is convexly disposed, the first extending piece has a first insertion hole, the first insertion hole is communicated with the hole of the first extending piece, when the bolt passes through the hole of the first extending piece, the positioning portion can be passed through the first insertion hole, the wrench portion of the bolt is attached to one side of the first extending piece, the positioning portion has a first distance from the other side of the first extending piece, one end of the pin portion and a side surface of the second extending piece facing the first extending piece have a second distance, and the length of the second distance is greater than the length of the first distance.
Preferably, the second extending piece has a second insertion hole, the second insertion hole is communicated with the hole of the second extending piece, when the bolt passes through the hole of the second extending piece, the positioning portion can pass through the second insertion hole, the wrench portion of the bolt is attached to one side of the second extending piece, the positioning portion has a third distance from the other side of the second extending piece, one end of the pin portion has a fourth distance from one side surface of the second extending piece facing the first extending piece, and the length of the fourth distance is greater than that of the third distance.
Preferably, the first extending piece and the second extending piece are respectively arranged perpendicular to the connecting piece.
In an embodiment of the present invention, the connecting piece and the bottom plate have an included angle, and the included angle is an angle between the chair leg and the ground.
In an embodiment of the present invention, the bottom plate includes a rib portion protruding from a middle section of the bottom plate.
In an embodiment of the present invention, the bottom plate includes a first side and a second side, and the connecting piece is disposed on the first side of the bottom plate.
In an embodiment of the present invention, the bottom plate includes a first side and a second side, and the connecting piece is disposed on the second side of the bottom plate.
The utility model has the advantages that the connecting part is connected with the chair legs, and the supporting force is increased through the connecting piece and the bottom plate so as to support the weight of the folding chair and prevent the problem that the chair inclines backwards due to unstable gravity center.
Moreover, the problem that when a user sits without noticing the rebound of the seat cushion, the user cannot directly fall backwards with the seat due to unstable gravity center, so that the user is injured is solved.
Drawings
FIG. 1 is a side view of a prior art folding seat;
FIG. 2 is a perspective view of the chair leg extending structure according to the first embodiment of the present invention;
FIG. 3 is an exploded perspective view of the chair leg extension joint structure according to the first embodiment of the present invention;
FIG. 4 is a side view of the chair leg extending and connecting structure according to the first embodiment of the present invention;
fig. 5, 6 and 7 are schematic views of a first installation manner of a chair leg extending and connecting structure according to a first embodiment of the present invention;
FIG. 8 is a schematic view of a second installation manner of the chair leg extending and connecting structure according to the first embodiment of the present invention;
FIG. 9 is a side view of a second embodiment of the chair leg extension connecting structure of the first embodiment of the present invention;
FIG. 10 is a perspective view of a chair leg extension joint structure according to a second embodiment of the present invention;
fig. 11 is a schematic view of two chair legs of the first and second embodiments of the present invention, wherein the chair leg extending structure is respectively disposed on the rear leg frame; and
fig. 12 is a schematic view of a folding seat in which a user sits on two legs of a rear seat frame and is provided with leg extension connecting structures according to the first and second embodiments of the present invention.
Wherein the reference numerals are as follows:
10. 10A connecting sheet
20. 20A bottom plate
21 rib
22. 22A first side
23. 23A second side
30. 30A connection part
31 connecting sheet
32 first extension piece
321 holes
322 first jack
33 second extension piece
331 holes
332 second jack
40 bolt
41 spanner portion
42 pin part
43 positioning part
44 first distance
45 second distance
46 third distance
47 fourth distance
80 chair leg
85 ground
90 front foot frame
91 chair back
92 chair cushion
93 rear foot stool
A. B, C position
Distance D
Angle theta
Detailed Description
The following embodiments of the present invention will be described in detail with reference to the drawings and reference symbols, so that those skilled in the art can implement the invention after studying the specification.
Fig. 2 and 3 are a perspective assembly view and a perspective exploded view of a chair leg extending connection structure according to a first embodiment of the present invention. As shown in fig. 2 and 3, the present invention provides a chair leg extending structure for being disposed on one of the chair legs 80 (shown in fig. 5) of the rear foot frame 93, the chair leg extending structure includes a connecting piece 10, a bottom plate 20 and a connecting portion 30. The following detailed description is made for each part.
One end of the connecting piece 10 is connected with the bottom plate 20, and the connecting part 30 is arranged at the other end of the connecting piece 10 connected with the bottom plate 20; in the first embodiment of the present invention, the bottom plate 20 includes a rib 21 protruding from the middle section of the bottom plate 20 to increase the strength of the bottom plate 20. In the first embodiment of the present invention, the base plate 20 includes a first side 22 and a second side 23, and the connecting piece 10 is disposed on the first side 22 of the base plate 20.
The connecting portion 30 includes a connecting piece 31, a first extending piece 32 and a second extending piece 33; the first extension piece 32 and the second extension piece 33 are respectively disposed on both sides of the connection piece 31. Preferably, the first extension piece 32 and the second extension piece 33 are respectively disposed perpendicular to the connecting piece 10, such that the first extension piece 32 and the second extension piece 33 have a space therebetween to accommodate a chair leg 80 (shown in fig. 5). In the first embodiment of the present invention, the first extending piece 32 includes a first insertion hole 322 and a hole 321, the first insertion hole 322 is connected to the hole 321 of the first extending piece 32; the second extension piece 33 includes a hole 331.
In the first embodiment of the present invention, the chair leg extending and connecting structure further comprises a bolt 40, the bolt 40 comprises a wrench portion 41 and a pin portion 42; the trigger 41 is provided at one end of the pin portion 42. The pin portion 42 has an outer diameter smaller than the holes 321 and 331 of the first and second extending pieces 32 and 33, so that the pin portion 42 can pass through the holes 321 and 331 of the first and second extending pieces 32 and 33, respectively.
In the first embodiment of the present invention, the plug 40 includes a positioning portion 43 protruding from the pin portion 42, and when the pin portion 42 penetrates the hole 321 of the first extending piece 32, the positioning portion 43 can pass through the first insertion hole 322.
Fig. 4 is a side view of the chair leg extending and connecting structure according to the first embodiment of the present invention. As shown in fig. 4, when the pin portion 42 and the positioning portion 43 of the plug pin 40 respectively pass through the hole 321 and the first insertion hole 322 of the first extension piece 32, the wrench portion 41 of the plug pin 40 is attached to one side of the first extension piece 32; at this time, the positioning portion 43 has a first distance 44 from the other side of the first extending piece 32, and one end of the pin portion 42 has a second distance 45 from one side surface of the second extending piece 33 facing the first extending piece 32; preferably, the length of the second distance 45 is greater than the length of the first distance 44.
In the first embodiment of the present invention, an angle is formed between the wrench portion 41 and the pin portion 42, so that when one end of the pin portion 42 sequentially passes through the hole 321 of the first extending piece 32 and the hole 331 of the second extending piece 33, the wrench portion 41 can be attached to one side of the first extending piece 32; the positioning effect of the pin 40 is achieved by the wrench portion 41, so that the pin 40 can be positioned in the hole 321 of the first extending piece 32 and the hole 331 of the second extending piece 33.
Preferably, the angle between the wrench portion 41 and the pin portion 42 may be 90 °, however, the angle between the wrench portion 41 and the pin portion 42 is not limited thereto.
It should be noted that, in the first embodiment of the present invention, the connecting piece 10 and the bottom plate 20 have an included angle θ, which is the angle between the chair leg 80 and the ground 85, so that the connecting portion 30 can be connected to the chair leg 80.
Fig. 5, 6 and 7 are schematic views of a first installation manner of the chair leg extending and connecting structure according to the first embodiment of the present invention. As shown in fig. 5, 6 and 7, in the first installation method of the present invention, the chair leg 80 is first installed between the connecting piece 31, the first extending piece 32 and the second extending piece 33, the pin 40 is aligned with the hole 321 of the first extending piece 32, the positioning portion 43 is aligned with the first insertion hole 322 of the first extending piece 32 and then inserted, the pin 42 and the positioning portion 43 respectively pass through the hole 321 and the first insertion hole 322, and then one end of the pin 42 passes through the hole of the second extending piece 33, so that the chair leg 80 is fixed between the connecting piece 31, the first extending piece 32, the second extending piece 33 and the pin 40, thereby achieving the fixing effect.
At this time, the user can misalign the positioning portion 43 with the first insertion hole 322 by rotating the angle of the latch 40. When the latch 40 is pulled, the positioning portion 43 will abut against the other side of the first extending piece 32, so that the positioning portion 43 cannot be removed from the first insertion hole 322, and the effect of preventing the latch 40 from falling off from the connecting portion 30 can be achieved.
Fig. 8 and 9 are a schematic view and a side view of a second installation manner of the chair leg extending and connecting structure according to the first embodiment of the present invention. As shown in fig. 8 and 9, the second installation method of the present invention is different from the first installation method in that the second extension piece 33 of the connecting portion 30 further includes a second insertion hole 332, and the second insertion hole 332 is communicated with the hole 331 of the second extension piece 33.
The user can selectively insert the latch pin 40 through the first extension piece 32 and the second extension piece 33 from the direction of the second extension piece 33. Specifically, during assembly, the bolt 40 is inserted through the hole 331 of the second extending piece 33, the positioning portion 43 can be inserted through the second insertion hole 332, and the wrench portion 41 of the bolt 40 is attached to one side of the second extending piece 33; at this time, the positioning portion 43 has a third distance 46 from the other side of the second extending piece 33, one end of the pin portion 42 has a fourth distance 47 from one side surface of the second extending piece 33 facing the first extending piece 32, and the length of the fourth distance 47 is greater than that of the third distance 46.
At this time, the user can misalign the positioning portion 43 with the second insertion hole 332 by rotating the angle of the latch pin 40. When the latch 40 is pulled, the positioning portion 43 will abut against the other side of the second extending piece 33, so that the positioning portion 43 cannot be removed from the second insertion hole 332, and the effect of preventing the latch 40 from falling off from the connecting portion 30 can be achieved.
The utility model discloses the second mounting means is passed through and is offered second jack 332 through second extension piece 33, and convenience of customers alright wear to locate the second with bolt 40 from the equidirectional hole 331 that extends piece 33 and the hole 321 of first extension piece 32, makes chair foot 80 be fixed in between connection piece 31, first extension piece 32, second extension piece 33 and the bolt 40, reaches the effect of location.
Fig. 10 is a perspective assembly view of a chair leg extending connection structure according to a second embodiment of the present invention. As shown in fig. 10, the second embodiment of the present invention is different from the first embodiment in that the bottom plate 20A includes a first side 22A and a second side 23A, and the connecting piece 10A is disposed on the second side 23 of the bottom plate 20A; the connecting portion 30A is provided at the other end of the connecting piece 10A connected to the bottom plate 20A. By disposing the connecting piece 10A on the second side 23A of the bottom plate 20A, the extending and connecting structure of the chair leg of the second embodiment of the present invention can be disposed on the other chair leg 80 of the rear foot frame 93.
Fig. 11 is a schematic view of the first and second embodiments of the foldable seat of the present invention, in which the chair leg extending and connecting structure is respectively disposed on two chair legs of the rear foot stool, and fig. 12 is a schematic view of the foldable seat of the first and second embodiments of the present invention, in which the two chair legs of the user seated on the rear foot stool are respectively disposed. As shown in fig. 11 and 12, particularly, the chair leg extending and connecting structure of the first embodiment of the present invention is disposed on the chair leg 80 of the right leg of the rear leg frame 93, and the chair leg extending and connecting structure of the second embodiment of the present invention is disposed on the chair leg 80 of the left leg of the rear leg frame 93, so as to achieve a better seat supporting effect; and the support of the chair leg extending and connecting structure of the utility model is used, when a user sits, the situation that the user is injured due to the fact that the user leans backwards slightly or the center of gravity is unstable and the user directly takes the chair to topple backwards can not happen.
The utility model has the advantages that the connecting part 30 is connected with the chair legs 80, and the supporting force is increased through the connecting piece 10 and the bottom plate 20 to support the weight of the folding chair, thereby preventing the problem that the chair inclines backwards due to unstable gravity center.
Moreover, the problem that when a user sits without noticing that the seat cushion 92 rebounds, the user cannot directly topple backwards with the chair due to unstable gravity center, and further the user is injured is solved.
The foregoing is illustrative of the preferred embodiment of the present invention and is not intended to limit the invention in any way, and therefore any modification or variation of the invention, which is made within the spirit of the invention, is intended to be covered by the scope of the invention.
Claims (11)
1. The utility model provides a chair foot extends connection structure which characterized in that for set up in a chair foot, this chair foot extends connection structure includes:
one end of the connecting piece is connected with the bottom plate, the connecting part is arranged at the other end of the connecting piece, and the connecting part is used for being fixed with the chair leg.
2. The chair leg extending and connecting structure of claim 1, further comprising a pin, wherein the connecting portion further comprises a connecting piece, a first extending piece and a second extending piece, the first extending piece and the second extending piece are respectively disposed on two sides of the connecting piece and each of the first extending piece and the second extending piece comprises a hole, and the pin is inserted through the holes so as to fix the chair leg among the connecting piece, the first extending piece, the second extending piece and the pin.
3. The chair leg extending and connecting structure as claimed in claim 2, wherein the pin comprises a wrench portion and a pin portion, the wrench portion is disposed at one end of the pin portion, and the other end of the pin portion is respectively inserted into the hole of the first extending piece and the hole of the second extending piece.
4. The chair leg extending and connecting structure as claimed in claim 3, wherein the trigger portion and the pin portion have an angle therebetween.
5. The chair leg extending and connecting structure as claimed in claim 3, wherein the pin further comprises a positioning portion protruding from the pin portion, the first extending piece has a first insertion hole communicating with the hole of the first extending piece, when the pin passes through the hole of the first extending piece, the positioning portion can pass through the first insertion hole, the wrench portion of the pin engages one side of the first extending piece, the positioning portion has a first distance from the other side of the first extending piece, one end of the pin portion has a second distance from one side of the second extending piece facing the first extending piece, and the length of the second distance is greater than the length of the first distance.
6. The chair leg extending and connecting structure as claimed in claim 5, wherein the second extending piece has a second insertion hole, the second insertion hole is communicated with the hole of the second extending piece, when the bolt passes through the hole of the second extending piece, the positioning portion can pass through the second insertion hole, the wrench portion of the bolt is engaged with one side of the second extending piece, the positioning portion has a third distance from the other side of the second extending piece, one end of the pin portion has a fourth distance from one side of the second extending piece facing the first extending piece, and the length of the fourth distance is greater than that of the third distance.
7. The chair leg extending and connecting structure as claimed in claim 2, wherein the first extending piece and the second extending piece are respectively disposed perpendicular to the connecting piece.
8. The chair leg extending and connecting structure as claimed in claim 1, wherein the connecting piece and the bottom plate have an included angle, and the included angle is an angle between the chair leg and the ground.
9. The foot extension coupling structure according to claim 1, wherein the base plate includes a rib portion rising from a middle portion of the base plate.
10. The chair leg extending structure as claimed in claim 1, wherein the base plate includes a first side and a second side, the connecting piece being disposed on the first side of the base plate.
11. The chair leg extending structure as claimed in claim 1, wherein the base plate includes a first side and a second side, the connecting piece being disposed on the second side of the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921031324.6U CN210095171U (en) | 2019-07-04 | 2019-07-04 | Chair leg extending and connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921031324.6U CN210095171U (en) | 2019-07-04 | 2019-07-04 | Chair leg extending and connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210095171U true CN210095171U (en) | 2020-02-21 |
Family
ID=69566350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921031324.6U Expired - Fee Related CN210095171U (en) | 2019-07-04 | 2019-07-04 | Chair leg extending and connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210095171U (en) |
-
2019
- 2019-07-04 CN CN201921031324.6U patent/CN210095171U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |