CN219614310U - Three-folding chair - Google Patents
Three-folding chair Download PDFInfo
- Publication number
- CN219614310U CN219614310U CN202320555370.6U CN202320555370U CN219614310U CN 219614310 U CN219614310 U CN 219614310U CN 202320555370 U CN202320555370 U CN 202320555370U CN 219614310 U CN219614310 U CN 219614310U
- Authority
- CN
- China
- Prior art keywords
- bracket
- swing arm
- hinged
- support
- backrest frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model provides a three-fold seat, comprising: a bracket; the backrest frame is movably arranged at one end of the bracket; the bracket comprises a first supporting piece, a telescopic piece and a second supporting piece, wherein one end of the first supporting piece is hinged with the other end of the bracket; the connecting assembly is used for driving the first supporting piece to extend out and rotate upwards when the backrest frame rotates downwards, the connecting assembly is movably mounted on the support, one end of the connecting assembly is connected with the backrest frame, and the other end of the connecting assembly is hinged with the telescopic piece. According to the three-folding type seat, the connecting component is connected with the telescopic piece, so that the telescopic piece is driven to extend and rotate when the backrest frame moves, and the angles among the backrest frame, the bracket and the bracket are more fit with the angle of a human body when the human body sits on the seat in a lying manner; but also can meet the requirements of some users with higher children, so that the legs of the users can be supported, and the comfortable experience of the users is improved.
Description
Technical Field
The utility model belongs to the technical field of seats, and particularly relates to a three-fold type seat.
Background
The seat is indistinguishable from our daily life, and life, travel, doctor's seeing and the like can not leave the seat. In different usage scenarios, the seats have different names; such as a dental chair in the field of medical appliances, is a carrier for supporting a dental patient during treatment, and can enable the patient to sit, sit up and lie in various postures on the dental chair, thereby facilitating diagnosis and treatment of diseases by doctors.
Existing dental chairs generally include a drive, a back rest, a seat cushion, and a foot rest; the backrest frame is connected with the cushion through the connecting rod, wherein the driving device drives the backrest frame to move, so that the angle between the backrest frame and the cushion is adjusted, and a doctor can conveniently check and treat the cushion and is suitable for lying and sitting of a patient; the angle between the backrest frame and the cushion accords with the requirement of a patient by adjusting the backrest frame to rotate or move; the length of putting the foot rest and cushion height phase-match, put the foot rest when the patient lies down, need rotate to incline the state by erect state to support patient's shank, when patient that the individual is high uses this seat, put foot rest part and support patient's shank, cause shank part can hang and produce the no support sense, lead to using experience sense poor.
Disclosure of Invention
The embodiment of the utility model aims to provide a three-fold type seat, which aims to solve the technical problems that when a patient with a child height uses the seat in the prior art, a foot rest part supports the lower leg of the patient, so that the lower leg can be suspended to generate a non-support feeling, and the comfortable experience of the user is poor.
In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided a three-fold seat comprising:
a bracket;
the backrest frame is movably arranged at one end of the bracket;
the bracket comprises a first supporting piece, a telescopic piece and a second supporting piece, wherein one end of the first supporting piece is hinged with the other end of the bracket;
the connecting component is used for driving the telescopic piece to extend out and rotate upwards when the backrest rotates downwards, the connecting component is movably mounted on the support, one end of the connecting component is connected with the backrest, and the other end of the connecting component is hinged with the telescopic piece.
By adopting the technical scheme, when the backrest frame rotates downwards, under the action of the connecting component, the backrest frame drives the telescopic piece to extend out and simultaneously drives the first supporting piece to rotate upwards; the backrest frame and the bracket are simultaneously linked, and the angles among the backrest frame, the bracket and the bracket are more in accordance with the ergonomics, so that a user can sit down conveniently; the telescopic piece stretches out in order to support user's shank, has increased the length of first support piece effectively to can solve the unsettled and no support sense that produces of shank of individual person, improve user's use and experienced sense.
In one embodiment, the first support member is provided with a sliding rail, and the telescopic member is provided with a sliding block in sliding connection with the sliding rail.
By adopting the technical scheme, the telescopic piece can conveniently slide out.
In one embodiment, the bracket is provided with an arc hole, and a support column connected with the backrest frame is inserted in the arc hole in a sliding manner.
By adopting the technical scheme, the sliding connection of the backrest frame and the bracket is realized.
In one embodiment, the connecting assembly comprises a first swing arm with one end connected with the backrest frame in a hinged mode and a second swing arm with one end connected with the other end of the first swing arm in a hinged mode, the middle of the first swing arm is slidably supported on the support, the other end of the second swing arm is connected with the telescopic piece in a hinged mode, and the middle of the second swing arm is slidably supported on the support.
Through adopting above-mentioned technical scheme, can drive the extension piece and stretch out and drive first support piece rotation through coupling assembling when the back frame removes.
In one embodiment, a second support member is mounted on the bracket, and a first connecting member slidably connected to the first swing arm is rotatably mounted on the second support member.
By adopting the technical scheme, the first swing arm is stably supported.
Optionally, the first connecting piece is a slider, and a guide rail for sliding the slider is arranged on the first swing arm.
By adopting the technical scheme, the connecting principle is the same as that of the telescopic piece and the first supporting piece, and the structure is simple.
Optionally, the first connecting piece is a first roller, and the first swing arm is provided with a first groove for the first roller to roll.
By adopting the technical scheme, the friction loss between the second supporting piece and the first swing arm is reduced through rolling connection.
In one embodiment, a fixing member is installed at one end of the bracket, which is close to the bracket, one end of the fixing member is hinged to the first supporting member, a third supporting member is installed at the other end of the fixing member, and a second connecting member connected with the second swing arm in a sliding manner is rotatably installed on the third supporting member.
By adopting the technical scheme, the second swing arm is stably supported.
Optionally, the second connecting piece is a slider, and a guide rail for sliding the slider is arranged on the second swing arm.
By adopting the technical scheme, the second swing arm is convenient to slide.
Optionally, the second connecting piece is a second roller, and a second groove for the second roller to roll is formed in the second swing arm.
By adopting the technical scheme, the friction loss between the third support piece and the second swing arm is reduced through rolling connection.
In one embodiment, the second swing arm includes a first sliding section with one end hinged to the first swing arm and a second sliding section connected to the other end of the first sliding section, and one end of the second sliding Duan Yuan away from the first sliding section is hinged to the telescopic member; the first sliding section is arranged in an upward inclined mode from one end, close to the first swing arm, of the second swing arm to one end, far away from the first swing arm, of the second swing arm, and the second sliding section is arranged in a downward inclined mode from one end, close to the first sliding section, to one end, close to the telescopic piece.
Through adopting above-mentioned technical scheme, in the bracket expansion process, can let the extensible member have a faster projecting amount, be convenient for in time the support user's shank.
In one embodiment, the support comprises a mounting seat and a supporting seat hinged with the mounting seat, the backrest frame is slidably mounted at one end of the supporting seat, the bracket is hinged with the other end of the supporting seat, and the connecting component is movably mounted on the supporting seat.
By adopting the technical scheme, the spatial layout of the three-fold seat is optimized, and the structure is compact.
In one embodiment, the bracket further comprises a first connecting plate with one end hinged with the mounting seat and a second connecting plate with one end hinged with the backrest frame, and the other end of the first connecting plate is hinged with the other end of the second connecting plate.
By adopting the technical scheme, the stability of the backrest frame is enhanced.
In one embodiment, the three-fold seat further comprises a driver for driving the backrest frame to slide, the driver is mounted on the bracket, and a power output end of the driver is hinged with the backrest frame.
By adopting the technical scheme, automatic adjustment is realized.
Optionally, the driver is a telescopic motor.
By adopting the technical scheme, the backrest frame is more stable when moving.
In one embodiment, the support base is provided with a plurality of reinforcing ribs, and the reinforcing ribs are arranged in a crisscross manner.
By adopting the technical scheme, the stability of the supporting seat is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a three-fold seat according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an exploded view of the bracket of FIG. 1;
FIG. 3 is a schematic diagram of an exploded view of the bracket of FIG. 1;
FIG. 4 is a schematic view of a portion of the exploded view of the bracket and back rest of FIG. 1;
FIG. 5 is a schematic view of a portion of the explosion structure of the bracket and connection assembly of FIG. 1;
fig. 6 is a schematic structural diagram II of a three-fold seat according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of the connection principle between the bracket, the second swing arm and the telescopic member in FIG. 6;
fig. 8 is a second schematic diagram of the connection principle among the bracket, the second swing arm and the telescopic member;
fig. 9 is a schematic diagram III of a three-fold seat according to an embodiment of the present utility model;
fig. 10 is a schematic view of the structure of fig. 9 with the driver removed.
Wherein, each reference sign in the figure:
10. a bracket; 100. an arc-shaped hole; 101. a receiving groove; 102. a mounting groove; 11. a mounting base; 12. a support base; 121. a second support; 122. a first connector; 1221. a first roller; 1222. a first pin; 123. a fixing member; 124. a third support; 125. a second connector; 1251. a second roller; 1252. a second pin; 126. reinforcing ribs; 13. a first connection plate; 14. a second connecting plate;
20. a backrest frame; 21. a support column; 22. a third roller; 23. a limiting block;
30. a bracket; 31. a first support; 311. a slide rail; 32. a telescoping member; 321. a slide block;
40. a connection assembly; 41. a first swing arm; 410. a first chute; 42. a second swing arm; 420. a second chute; 421. a first glide segment; 422. a second glide segment;
50. a driver.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In fig. 1 and 6, the S direction refers to the longitudinal direction of the three-fold seat on the horizontal plane; the foregoing is provided for convenience of description and for ease of understanding only and is not to be construed as limiting the scope of the utility model.
Referring to fig. 1, the three-fold seat provided by the embodiment of the utility model comprises a bracket 10, a backrest 20, a bracket 30 and a connecting assembly 40, wherein the backrest 20 is slidably mounted at one end of the bracket 10; the bracket 30 comprises a first supporting member 31 and a telescopic member 32, one end of the first supporting member 31 is hinged with the other end of the bracket 10, and the telescopic member 32 is connected to the first supporting member 31 in a sliding manner; the connecting component 40 is movably mounted on the bracket 10, one end of the connecting component 40 is connected with the backrest frame 20, the other end of the connecting component 40 is hinged with the telescopic member 32, and the connecting component 40 is used for driving the telescopic member 32 to extend and driving the first supporting member 31 to rotate upwards when the backrest frame 20 rotates downwards.
By adopting the connecting component 40, when the backrest frame 20 rotates downwards, the connecting component 40 moves along with the backrest frame 20 to the side close to the bracket 30, so that the telescopic piece 32 is pushed to move, the telescopic piece 32 stretches out and drives the first supporting piece 31 to rotate upwards, the leg of a user can be supported, and the comfortable experience of the user is improved; extension of the telescoping member 32 effectively extends the length of the bracket 30, and even when used by a taller user, the telescoping member 32 can effectively support the legs of the taller user, thereby avoiding the generation of a feeling of no support and improving the comfort of use.
In an embodiment of the present utility model, referring to fig. 2 and 3, a sliding rail 311 is installed on the first supporting member 31, and a sliding block 321 is installed on the telescopic member 32, where the sliding block 321 is slidably engaged with the sliding rail 311. The sliding connection of the telescopic member 32 on the first supporting member 31 is realized, the sliding resistance is reduced, and the telescopic member 32 is convenient to extend out to support the legs of a user.
Alternatively, the number of the sliding rails 311 is two, the two sliding rails 311 are respectively disposed at two sides of the first supporting member 31, and the sliding rails 311 are disposed along the length direction of the first supporting member 31; the number of the sliding blocks 321 is four, each sliding rail 311 corresponds to two sliding blocks 321, the sliding blocks 321 are arranged on one side, close to the first supporting piece 31, of the telescopic piece 32 corresponding to the sliding rails 311, the telescopic piece 32 is stably supported, and the telescopic piece 32 can slide on the first supporting piece 31 rapidly and stably.
In one embodiment of the present utility model, referring to fig. 4, an arc hole 100 is formed in the bracket 10, and a support column 21 is slidably inserted into the arc hole 100, and the support column 21 is connected to the backrest frame 20. Specifically, the arc-shaped hole 100 is provided to be gradually curved upward from an end near the bracket 30 to an end far from the bracket 30. The advantage of setting up like this lies in, through support column 21 slip insert locate in arc hole 100, can make back frame 20 control the removal in, can also realize the adjustment of angle, and the angle of back frame 20 and support 10 can change gradually promptly, makes it accord with the crooked angle in back when the user lies and sits more, and then improves the use comfort.
In another embodiment of the present utility model, the bracket 10 is provided with an arc hole 100, the support column 21 is disposed through the bottom of the backrest frame 20, and two ends of the support column 21 are slidably inserted into the arc hole 100. Further improving the stability of the back rest 20.
Specifically, the third roller 22 is sleeved on the support column 21, and the third roller 22 is located in the arc-shaped hole 100, so that friction loss between the support column 21 and the support 10 is reduced. Further, a limiting block 23 is arranged on one side of the support column 21 far away from the backrest frame 20, so that the third roller 22 is prevented from being separated from the arc-shaped hole 100, and the support column 21 and the support frame 10 are kept in stable sliding connection.
In one embodiment of the present utility model, referring to fig. 1 and 5, the connection assembly 40 includes a first swing arm 41 and a second swing arm 42, one end of the first swing arm 41 is hinged to the backrest frame 20, the other end of the first swing arm 41 is hinged to one end of the second swing arm 42, the other end of the second swing arm 42 is connected to the telescopic member 32, the middle portion of the first swing arm 41 is slidably supported on the bracket 10, and the middle portion of the second swing arm 42 is slidably supported on the bracket 10. The first swing arm 41 and the second swing arm 42 are arranged, and the first swing arm 41 is hinged to the second swing arm 42, because the first swing arm 41 and the second swing arm 42 can deviate from each other in different angles when moving, when the whole connecting assembly 40 moves rightwards, one end of the first swing arm 41 connected with the backrest frame 20 can incline upwards, and one end of the second swing arm 42 hinged with the telescopic piece 32 can incline upwards, so that the connecting and linkage effects can be better played.
In one embodiment of the present utility model, referring to fig. 5, the bracket 10 is provided with a second support member 121, and the second support member 121 is provided with a first connection member 122, and the first connection member 122 is slidably connected to the first swing arm 41. The first swing arm 41 is stably supported.
In one embodiment, the second supporting member 121 is a supporting shaft, the first connecting member 122 includes a first roller 1221 and a first pin 1222, the first pin 1222 is inserted into a side of the first supporting shaft, which is close to the first swing arm 41, and the first roller 1221 is sleeved on the first pin 1222; the first swing arm 41 is provided with a first chute 410, and the first roller 1221 is located in the first chute 410, so that the first swing arm 41 can move.
In another embodiment, the first connecting piece 122 may also be a sliding block 321, and the sliding rail 311 matched with the sliding block 321 is installed on the first swing arm 41; the sliding block 321 may also be slidably engaged with the first sliding slot 410, as long as the sliding connection between the first swing arm 41 and the second support 121 is achieved.
In an embodiment of the present utility model, referring to fig. 5 and 6, a fixing member 123 is installed on the bracket 10, the fixing member 123 is installed at one end of the bracket 10 near the bracket 30, one end of the fixing member 123 is hinged with the first supporting member 31, the other end of the fixing member 123 is installed with a third supporting member 124, a second connecting member 125 is installed on the third supporting member 124, and the second connecting member 125 is slidably connected to the middle of the second swing arm 42, so as to realize the sliding connection between the second swing arm 42 and the bracket 10. Optionally, the third support 124 is a support shaft.
Specifically, the second connection member 125 includes a second roller 1251 and a second pin 1252, which are connected in the same relationship as the first roller 1221 and the first pin 1222, and are not described herein. Friction loss between the third support 124 and the second swing arm 42 can be reduced.
Optionally, a rotating shaft is hinged to an end of the fixing member 123 away from the third supporting member 124, and the rotating shaft is connected to the first supporting member 31, so that the first supporting member 31 can rotate along the rotating shaft.
Alternatively, the fixing member 123 is disposed to be inclined upward from one end connected to the third support member 124 to one end connected to the first support member 31. This has the advantage of increasing the height of the hinge between the first support 31 and the support 10, allowing a greater rotation angle of the first support 31 and a greater length of the second swing arm 42, and also facilitating a rapid extension of the telescopic element 32.
In one embodiment of the present utility model, referring to fig. 6 to 8, the second swing arm 42 includes a first sliding section 421 and a second sliding section 422, one end of the first sliding section 421 is hinged to the first swing arm 41, the other end of the first sliding section 421 is connected to one end of the second sliding section 422, and the other end of the second sliding section 422 is hinged to the telescopic member 32; the first sliding section 421 is disposed obliquely upward from an end of the second swing arm 42 near the first swing arm 41 to an end of the second swing arm 42 far away from the first swing arm 41, and the second sliding section 422 is disposed obliquely downward from an end near the first sliding section 421 to an end near the telescopic member 32. Specifically, from one end close to the first swing arm 41 to the middle of the second swing arm 42 to one end close to the telescopic member 32, the second swing arm 42 is inclined upward, bent and then inclined downward.
Optionally, the first sliding section 421 and the second sliding section 422 are integrally formed, so as to facilitate the improvement of the overall strength of the second swing arm 42.
Specifically, the first sliding section 421 and the second sliding section 422 are both straight sliding sections, and an included angle of 35 degrees is formed between the first sliding section 421 and the second sliding section 422, which may be a difference of 5 degrees. The arrangement is such that the two rates of travel are separated when the third support 124 is being slid by the first second slide segment 422 and the third support 124 is being slid by the second slide segment 421. There are also two rates at which the angular velocity of the swing of the carriage 30 can be controlled to meet the user's good experience.
It should be noted that both upward and downward are references when the three-fold seat is placed in the horizontal direction.
This has the advantage that the telescopic member 32 can be extended more quickly to support the user's lower leg, as shown in figures 6 and 7, in which point a is the articulation of the third support member 124 with the fixing member 123Point B is the hinge point of the first supporting member 31 and the fixing member 123, and point C is the hinge point of the second swing arm 42 and the telescopic member 32. A. The connection line of the points B and C forms a triangle, wherein a solid line which is bent between the points A and C in fig. 5 corresponds to the second swing arm 42, and a dotted line corresponds to the effective length of the second swing arm 42; the lines A, B and C correspond to the lines a, B and C respectively, wherein the length of the line C is fixed, the line B is the moving length of the second swing arm 42, and the line a corresponds to the extending distance of the telescopic piece 32. Similarly, referring to fig. 6 and 8 (fig. 8 shows a schematic connection diagram of the support base 12, the second swing arm 42 and the telescopic member 32 when the second swing arm 42 is in a flat plate shape), a 1 Corresponds to A, B 1 Correspond to B, C 1 Corresponding to C.
Using the cosine law, it is known that:
a 2 ＝b 2 +c 2 -2b*c*COS∠A
a 1 2 ＝b 1 2 +c 1 2 -2b 1 *c 1 *COS∠A 1
at this time c=c 1 Let b=b 1 See +.A>∠A 1 COS < A-<COS∠A 1 Obtaining a>a 1 . So when the second swing arm 42 moves the same length (i.e., b=b 1 At this time), the second swing arm 42 is inclined upward and then bent downward, and the extension distance of the extension member 32 is longer than that of the straight line. Because the second swing arms 42 extend an equal distance and for an equal amount of time, the solution provided in the present embodiment enables the telescoping member 32 to extend a greater distance faster to support the user's leg.
In another embodiment of the present utility model, referring to fig. 5 and 6, a first sliding groove 410 is formed on the first swing arm 41, and the first swing arm 41 is slidably connected to the second support 121 through the first sliding groove 410; the second swing arm 42 is provided with a second chute 420, the second chute 420 is communicated with the first sliding section 421 and the second sliding section 422, and the second swing arm 42 is slidably connected with the third supporting member 124 through the second chute 420. This arrangement can effectively reduce friction loss between the second support 121, the third support 124 and the connection assembly 40, and also improve the linkage of the connection assembly 40.
In one embodiment of the present utility model, referring to fig. 1 and 6, a bracket 10 includes a mounting seat 11 and a supporting seat 12, the mounting seat 11 is hinged with the supporting seat 12, a backrest frame 20 is slidably mounted at one end of the supporting seat 12, and a free end of the backrest frame 20 extends upwards; the bracket 30 is hinged with the other end of the supporting seat 12, and the free end of the bracket 30 extends downwards; the connection assembly 40 is mounted on the support base 12.
Specifically, the first supporting member 31 is hinged to the other end of the supporting seat 12, and the free ends of the first supporting member 31 and the telescopic member 32 extend downwards; the arc-shaped hole 100 is formed in the supporting seat 12, the second supporting piece 121 and the third supporting piece 124 are both arranged on the supporting seat 12, and the second supporting piece 121 and the third supporting piece 124 are arranged side by side and at intervals; the fixing member 123 is disposed on the support base 12.
In an embodiment of the present utility model, referring to fig. 5, a plurality of reinforcing ribs 126 are further disposed on the supporting base 12, and the plurality of reinforcing ribs 126 are disposed on the supporting base 12 in a crisscross manner. The overall strength of the support base 12 is effectively improved.
In one embodiment of the present utility model, referring to fig. 10, the bracket 10 further includes a first connecting plate 13 and a second connecting plate 14, one end of the first connecting plate 13 is hinged with the mounting seat 11, the other end of the first connecting plate 13 is hinged with one end of the second connecting plate 14, and the other end of the second connecting plate 14 is hinged with the backrest frame 20; thereby improving the stability of the back frame 20.
In an embodiment of the present utility model, referring to fig. 9, the three-fold seat further includes a driver 50, the driver 50 is used for driving the backrest frame 20 to slide on the supporting seat 12, the driver 50 is installed on the supporting seat 12, the power output end of the driver 50 is hinged with the backrest frame 20, and the linkage between the backrest frame 20 and the bracket 30 can be realized by controlling the driver 50, so that the operation is very convenient.
Optionally, the actuator 50 is a telescoping motor to facilitate stable movement of the back frame 20.
In an embodiment of the present utility model, referring to fig. 4 and 9, the supporting seat 12 is further provided with a receiving groove 101 and a mounting groove 102, the receiving groove 101 is used for providing a mounting space for the backrest frame 20, and the mounting groove 102 is used for mounting the driver 50.
In one embodiment, the backrest frame 20 is further detachably provided with a cushion (not shown), the supporting seat 12 is detachably provided with a cushion (not shown), the telescopic member 32 is detachably provided with a foot pad (not shown), and the cushion, the cushion and the foot pad are made of soft materials, such as soft silica gel, cotton and the like, so that the comfort level of the user is further improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A three fold seat comprising:
a bracket;
the backrest frame is movably arranged at one end of the bracket;
the bracket comprises a first supporting piece, a telescopic piece and a second supporting piece, wherein one end of the first supporting piece is hinged with the other end of the bracket;
the connecting component is used for driving the telescopic piece to extend out and rotate upwards when the backrest rotates downwards, the connecting component is movably mounted on the support, one end of the connecting component is connected with the backrest, and the other end of the connecting component is hinged with the telescopic piece.
2. The three fold seat of claim 1 wherein the first support member has a slide rail mounted thereon and the telescoping member has a slider mounted thereon in sliding connection with the slide rail.
3. The three-fold seat according to claim 1, wherein the bracket is provided with an arc-shaped hole, and a support column connected with the backrest frame is inserted in the arc-shaped hole in a sliding manner.
4. The three-fold seat according to claim 1, wherein the connecting assembly comprises a first swing arm, one end of which is hinged to the backrest frame, and a second swing arm, one end of which is hinged to the other end of the first swing arm, the middle part of the first swing arm is slidably supported on the bracket, the other end of the second swing arm is hinged to the telescopic member, and the middle part of the second swing arm is slidably supported on the bracket.
5. The three fold seat of claim 4 wherein the bracket has a second support member mounted thereon and a first connector member pivotally mounted thereon for sliding connection with the first swing arm.
6. The three-fold seat according to claim 4, wherein a fixing member is installed at one end of the bracket near the bracket, one end of the fixing member is hinged to the first supporting member, a third supporting member is installed at the other end of the fixing member, and a second connecting member connected with the second swing arm in a sliding manner is rotatably installed on the third supporting member.
7. The three fold seat of claim 4 wherein the second swing arm includes a first slide segment hingedly connected to the first swing arm at one end and a second slide segment connected to the other end of the first slide segment, the second slide Duan Yuan being hingedly connected to the telescoping member at one end away from the first slide segment; the first sliding section is arranged in an upward inclined mode from one end, close to the first swing arm, of the second swing arm to one end, far away from the first swing arm, of the second swing arm, and the second sliding section is arranged in a downward inclined mode from one end, close to the first sliding section, to one end, close to the telescopic piece.
8. The three-fold seat of any one of claims 1-7, wherein the bracket includes a mounting base and a support base hinged to the mounting base, the back rest slidably mounted on one end of the support base, the bracket hinged to the other end of the support base, and the connection assembly movably mounted on the support base.
9. The three-fold seat of claim 8, wherein the bracket further comprises a first link plate having one end hinged to the mount and a second link plate having one end hinged to the back frame, the other end of the first link plate being hingedly connected to the other end of the second link plate.
10. The three-fold seat according to any one of claims 1 to 7, further comprising a driver for driving the back rest frame to slide, the driver being mounted on the bracket, and a power output end of the driver being hinged to the back rest frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555370.6U CN219614310U (en) | 2023-03-20 | 2023-03-20 | Three-folding chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555370.6U CN219614310U (en) | 2023-03-20 | 2023-03-20 | Three-folding chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219614310U true CN219614310U (en) | 2023-09-01 |
Family
ID=87791825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320555370.6U Active CN219614310U (en) | 2023-03-20 | 2023-03-20 | Three-folding chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219614310U (en) |
-
2023
- 2023-03-20 CN CN202320555370.6U patent/CN219614310U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102160716B (en) | Chair frame with adjustable position of backrest | |
| CN208274911U (en) | Supine posture body-building device | |
| BR112021004942A2 (en) | buttocks exercise machine | |
| JP2000107241A (en) | Chair for drip and artificial dialysis | |
| CN219614310U (en) | Three-folding chair | |
| CN217471556U (en) | Structure improved chair frame | |
| CN214760122U (en) | Massage chair | |
| CN202035760U (en) | Chair frame with position-adjustable backrest | |
| CN112716746B (en) | Correction exercise chair for young hunchback | |
| CN213311013U (en) | Foldable nursing bed chair | |
| CN209950776U (en) | Massage armchair | |
| CN213075087U (en) | Deck chair | |
| CN112932127A (en) | Adjusting mechanism and chair | |
| CN116350464A (en) | Dental chair | |
| CN207220944U (en) | A kind of rotatable backrest mechanism for stretcher | |
| CN201353256Y (en) | Linkage lifting mechanism for bed panel and bed body employing same | |
| TWM605057U (en) | Electric bed with lumbar support function | |
| CN220756975U (en) | Chair set | |
| CN216168733U (en) | Sitting posture adjustable slide lying type massage chair | |
| CN218515909U (en) | Handrail assembly devices and massage armchair | |
| CN215532989U (en) | Chair and adjusting mechanism | |
| CN216985630U (en) | Massage chair structure | |
| CN215134680U (en) | Deformable medical chair convenient for infusion | |
| CN215915319U (en) | Wheelchair for children femoral fracture | |
| CN212395319U (en) | Double-core massage chair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |