CN220494636U - Iron frame of seat back - Google Patents
Iron frame of seat back Download PDFInfo
- Publication number
- CN220494636U CN220494636U CN202321556139.5U CN202321556139U CN220494636U CN 220494636 U CN220494636 U CN 220494636U CN 202321556139 U CN202321556139 U CN 202321556139U CN 220494636 U CN220494636 U CN 220494636U
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- iron frame
- seat back
- supporting
- stay bar
- supporting rod
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model belongs to the technical field of seat brackets, and particularly relates to a seat backrest iron frame, which comprises: the first vaulting pole is used for supporting first movable part, the second vaulting pole is used for supporting second movable part, first vaulting pole is on a parallel with the second vaulting pole, the fagging is connected respectively at the both ends of first vaulting pole, second vaulting pole, enclose into the iron stand main part with first vaulting pole, second vaulting pole, first actuating mechanism connects on the second vaulting pole, drive first vaulting pole, first movable part motion, second actuating mechanism connects on first vaulting pole, drive second vaulting pole, second movable part motion provides the seat back iron stand, the structure is simplified, reduce cost adopts novel electric putter, the stroke is controllable, excellent in use effect.
Description
Technical Field
The utility model belongs to the technical field of seat supports, and particularly relates to a seat back iron frame.
Background
Iron frames are the most important supporting structure of the power seat, and the realization of various functions of the seat depends on the structure of the iron frames. In the prior art, the realization of the seat adjusting function depends on the control of the driving part on the iron frame structure, and the driving part generally needs a special fixing plate or rod to be fixed in the iron frame, thereby leading to the complexity of the iron frame structure and improving the cost.
Disclosure of Invention
Aiming at the defects, the utility model provides the iron frame of the backrest, which simplifies the structure, reduces the cost, adopts a novel electric push rod, has controllable stroke and good use effect.
The technical scheme adopted for solving the technical problems is as follows:
a seat back iron frame, comprising:
a first stay bar for supporting the first movable part,
a second stay bar for supporting the second movable part, the first stay bar being parallel to the second stay bar,
the supporting plates are respectively connected with the two ends of the first supporting rod and the second supporting rod, and enclose an iron frame main body with the first supporting rod and the second supporting rod,
a first driving mechanism connected to the second stay bar for driving the first stay bar and the first movable part to move,
the second driving mechanism is connected to the first stay bar and drives the second stay bar and the second movable part to move.
Further, the connecting mechanism comprises a connecting bolt body, a locking nut and a gasket, wherein the connecting bolt body comprises a locking part, a matching part and a connecting part from outside to inside, the connecting part extends into the end parts of the first supporting rod and the second supporting rod, the gasket is arranged on the supporting plate, the gasket is sleeved at the matching part, the locking part is positioned outside the supporting plate, and the locking nut is locked at the locking part.
Further, the first movable part is a lumbar support, and the second movable part is a push support.
Further, the end of the first driving mechanism is sleeved on the second supporting rod, the output end of the first driving mechanism is connected with a first pushing plate arranged on the first supporting rod, and an included angle is formed between the first driving mechanism and the plane where the first supporting rod and the second supporting rod are located.
Further, the first movable part moves synchronously with the first stay bar, and the second movable part moves synchronously with the second stay bar.
Further, first actuating mechanism, second actuating mechanism are electric putter, electric putter includes motor, shell, lead screw, telescopic link, travel switch, be equipped with screw-nut on the lead screw, screw-nut establishes at the outside telescopic link of lead screw with the cover and is connected, telescopic link and shell sliding fit, the output shaft of motor extends to in the shell, is connected through drive mechanism between output shaft and the lead screw, the motor sets up on the shell, the shell forms the motor casing of motor partly, the shell is kept away from the one end of motor for with telescopic link complex supporting part, the supporting part inner wall is equipped with a fixed slot along telescopic link direction of operation, be equipped with detachable mounting in the fixed slot, travel switch is connected with the mounting.
Further, a through hole is formed in the travel switch, the travel switch is fixed to the fixing groove through a fastening screw penetrating through the through hole, and the outer diameter of the fastening screw is larger than the width of the fixing groove.
Further, the motor casing comprises a rear end cover, a front end cover and a casing, wherein the front end cover and the casing are of an integral structure.
Further, the end part of the rear end of the shell is provided with a fixing protrusion, the protrusion is provided with a fixing hole, the fixing hole is provided with an opening leading to one side, the fixing protrusion is provided with a limit groove at the opening, and a detachable limit plate is arranged in the limit groove.
Further, two travel switches are arranged and connected to the PCB, and the corresponding PCB in the shell is a PCB cavity
The beneficial effects of the utility model are as follows:
by adopting the scheme, the iron frame is simple in whole, the driving mechanism is directly fixed on the first supporting rod or the second supporting rod, the structure is simplified, and the cost is reduced; the electric putter fixes the simple operation on the iron stand, and electric putter's stroke board is removable, and the degree of stretching of the first movable part of control of being convenient for, second movable part improves the result of use.
Drawings
The foregoing and other objects, features, and advantages of the utility model will become apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a schematic cross-sectional view of a connecting stud according to an embodiment of the utility model.
FIG. 3 is a schematic cross-sectional view of a connecting bolt according to an embodiment of the present utility model.
Fig. 4 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 5 is a schematic diagram of a structure of a travel switch according to an embodiment of the utility model.
FIG. 6 is a schematic cross-sectional view of an embodiment of the present utility model.
Fig. 7 is a schematic longitudinal section structure of an embodiment of the present utility model.
Fig. 8 is a schematic view showing a partial structure of a limiting plate according to an embodiment of the utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1-3, the seat back iron frame comprises a first stay 1001, a second stay 1002, two stay plates 1003, a connecting bolt 1004, a first driving mechanism and a second driving mechanism, wherein the first stay 1001 and the second stay 1002 are all solid round rods in parallel, the stay plates 1003 are connected to two ends of the first stay 1001 and the second stay 1002 to form a rectangular main body structure of the seat back iron frame, the tail end of the first driving mechanism is connected to the second stay 1002, a first push plate 1011 extending towards the lower side is arranged on the first stay 1001, the output end of the first driving mechanism is connected with the first push plate 1011, a second push plate 1012 extending towards the lower side is arranged on the second stay 1002, the tail end of the second driving mechanism is connected to the first push plate 1002, the output end of the second driving mechanism is connected with the first push plate 1012, the waist support 1004 is fixedly connected to the first stay 1001, and the headrest support 1005 is fixedly connected to the second stay 1002.
The use principle is as follows: the first driving mechanism stretches and contracts to push the first push plate 1011 to rotate by taking the first supporting rod 1001 as an axis, the first supporting rod 1001 and the first push plate 1011 keep a synchronous motion state, then the first supporting rod 1001 drives the lumbar support 1004 to rotate, the position of the lumbar support 1004 is changed, the motion principle of the headrest support 1005 is similar to that of the lumbar support 1004, and the motion of the headrest support 1005 is driven by the second driving mechanism, so that redundant description is omitted. Compared with the existing seat back iron frame, the support does not need to independently fix the supporting rod of the electric push rod, so that the support structure is simplified, and the cost is reduced.
In order to facilitate the first push plate 1011 to better push the first stay bar 1001, the first push plate 1011 extends to the rear lower side of the first stay bar 1001, the second push plate 1012 extends to the front lower side of the second stay bar 1002, an acute angle clamp is arranged between the driving mechanism and the stay bar, the tail end of the driving mechanism is movably matched with the stay bar, the stay bar is driven to rotate better, and the driving smoothness is improved.
In an embodiment, the brace 1003 is connected with the first brace 1001 and the second brace 1002 through a special connection mechanism, the connection mechanism comprises a connection bolt 1006, a locking nut 1007 and a gasket 1008, the connection bolt 1006 comprises a locking part 1061, a matching part 1062 and a connection part 1063 from outside to inside, the connection part 1063 extends into the end parts of the first brace 1001 and the second brace 1002, the gasket 1008 is sleeved at the matching part 1062, the gasket 1008 is embedded in a through hole arranged on the brace 1003, the locking part 1061 is positioned outside the brace 1003, the locking nut 1006 is locked at the locking part 1061, the connection mechanism ensures that the brace 1003 is connected with the first brace 1001 and the second brace 1002, and meanwhile, the movable fit between the brace and the brace 1003 is ensured, and the brace has flexible rotatability, so that the support function as a bracket main body is not affected.
In an embodiment, the first driving mechanism and the second driving mechanism are both electric push rods, referring to fig. 4, the electric push rods comprise a motor 400, a housing 100, a screw rod 200, a telescopic rod 300 and a travel switch 600, the telescopic rod 300 is sleeved outside the screw rod 200, a screw rod nut 500 is arranged on the screw rod 200, the screw rod nut 500 is positioned at the rear end of the telescopic rod 300, the front part of the screw rod nut 500 is a connecting part 501 embedded into the telescopic rod 300, the connecting part 501 is matched with an inner cavity nut at the rear end of the telescopic rod 300, the structure is convenient for rapid assembly, the rear end of the housing 100 is a fixing part, and the front end is a supporting part.
In an embodiment, referring to fig. 5, a fixing protrusion 101 is provided at a terminal end of a fixing portion, a fixing hole 102 is provided on the fixing protrusion 101, an opening 103 leading to one side is provided in the fixing hole 102, a limit groove 104 is provided at the fixing protrusion 101 at the opening 103, a detachable limit plate 105 is provided in the limit groove 104, when the electric push rod is fixed, the fixing hole 102 is clamped into the first support 1001 or the second support 1002 through the opening 103, and then the limit plate 104 is mounted in the limit groove 104, so that the electric push rod is mounted on the first support 1001 or the second support 1002, the operation is simple, the two end structures of the limit plate 105 are larger than the middle structure, the limit plate 105 is dumbbell-shaped, the limit plate 105 is prevented from falling out, and the mounting effect is ensured.
Referring to fig. 8, the two end portions of the limiting plate 105 are locking portions 1051, a matching portion 1052 is arranged between the two locking portions 1051, the matching portion 1052 is arranged at the opening 103, the opening 103 is closed, the width of the matching portion 1051 is larger than that of the matching portion 1052, the limiting plate 105 forms a dumbbell-shaped structure, the structure of the limiting groove 104 and the structure of the limiting plate 105 are matched along with each other, the limiting plate 105 and the limiting groove 104 are preferably in interference fit, the limiting plate 105 is prevented from falling out after being clamped into the limiting groove 104, the installation effect is ensured, in order to improve the fixing reliability of the electric push rod, a screw is arranged on the side edge of the fixing protrusion 101, penetrates through the groove wall of the corresponding position of the limiting groove 104 from the outer side, and penetrates into the limiting plate 105 to prevent the limiting plate 105 from falling. One side of the matching part 1051 facing the fixing hole 102 is provided with a matching bulge 1053, the surface of the matching bulge 1053 facing the fixing hole 102 is a cambered surface, the cambered surface and the fixing hole 102 enclose a circular surface which is matched with the fixing position structure of the electric push rod, so that the matching degree is improved, after the electric push rod is installed, the electric push rod can be rotated by taking the fixing position as a shaft, and the activity of the electric push rod is ensured. Referring to fig. 5-7, a fixing groove 110 along the extending direction of the telescopic rod 300 is formed in the inner wall of the casing 100 of the supporting portion, a fixing piece 111 detachable from the fixing groove 110 is arranged in the fixing groove 11, in one embodiment, the fixing piece 111 is a fastening screw, the outer diameter of the fastening screw is larger than the width of the fixing groove 110, the fastening screw can be screwed at any position of the fixing groove 110, a through hole 601 is formed in the travel switch 600, the fastening screw passes through the through hole 601 and is screwed in the fixing groove 110, fixing of the travel switch 600 is achieved, in one embodiment, the travel switch 600 is a micro switch, the electric push rod provided by the embodiment has a flexible travel, in the supporting portion range of the casing 100, the travel switch 600 can be fixed at a corresponding position according to actual requirements, and travel control is achieved.
The travel switch 600 is provided with two travel switches 600, the two travel switches 600 are connected to one PCB 700, the PCB cavity 120 is arranged in the shell 100 corresponding to the PCB 700, when the travel is changed, the PCB 700 can be replaced at the same time, the two travel switches 600 are fixed into a whole by the PCB 700, and the reliability of the travel structure is improved.
The motor 400 includes a motor shaft (not shown), a rear end cover 401, a housing 402, and a front end cover, and in one implementation, the front end of the motor 400 is a part of the housing 100, so that the motor 400 and the housing 100 are more integrated, which is convenient for production and reduces production cost.
The transmission mechanism is a worm wheel 800, the worm wheel 800 is fixed at the tail end of the screw rod 200, and a motor shaft is meshed with teeth on the outer peripheral surface of the worm wheel 800 to carry out transmission.
The shell 100 comprises a first shell and a second shell, the motor 400 is connected to the first shell, the fixing groove 110 is formed in the inner wall of the first shell, the first shell and the second shell are detachably connected through screws, and compared with the prior art, the push rod is convenient to assemble and the production cost is remarkably reduced.
The outer peripheral surface of the screw nut 500 is provided with a plurality of protrusions, the protrusions extend to the sliding grooves arranged at the corresponding positions of the shell 100 respectively and are in sliding fit with the sliding grooves to provide guidance for the movement of the telescopic rod 300, the screw nut 500 is provided with trigger plates extending to one side of the fixed groove 110, the front side and the rear side of each trigger plate are inclined planes, the inclined planes are used for triggering trigger points on the travel switch 600, once the trigger points are triggered, the rotation moment of the motor is eliminated, and the electric push rod stops running.
The backrest iron frame provided by the utility model is convenient for assembly production, compared with the existing iron frame, the production cost is obviously reduced, and the stroke of the backrest iron frame matched with an electric push rod is adjustable, so that the usability of the backrest iron frame is obviously improved.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, but any simple modification or equivalent variation of the above embodiment according to the technology of the present utility model falls within the scope of the present utility model.
Claims (10)
1. A seat back iron frame, characterized by comprising:
a first stay bar for supporting the first movable part,
a second stay bar for supporting the second movable part, the first stay bar being parallel to the second stay bar,
the supporting plates are respectively connected with the two ends of the first supporting rod and the second supporting rod, and enclose an iron frame main body with the first supporting rod and the second supporting rod,
a first driving mechanism connected to the second stay bar for driving the first stay bar and the first movable part to move,
the second driving mechanism is connected to the first stay bar and drives the second stay bar and the second movable part to move.
2. The seat back iron frame of claim 1, wherein: the connecting mechanism comprises a connecting bolt body, a locking nut and a gasket, wherein the connecting bolt body comprises a locking part, a matching part and a connecting part from outside to inside, the connecting part extends into the end parts of the first supporting rod and the second supporting rod, the gasket is arranged on the supporting plate, the gasket is sleeved at the matching part, the locking part is positioned outside the supporting plate, and the locking nut is locked at the locking part.
3. The seat back iron frame of claim 1, wherein: the first movable part is a waist rest, and the second movable part is a push support.
4. The seat back iron frame of claim 1, wherein: the end of the first driving mechanism is sleeved on the second supporting rod, the output end of the first driving mechanism is connected with a first pushing plate arranged on the first supporting rod, and an included angle is formed between the first driving mechanism and the plane where the first supporting rod and the second supporting rod are located.
5. The seat back iron frame of claim 1, wherein: the first movable part moves synchronously with the first stay bar, and the second movable part moves synchronously with the second stay bar.
6. The seat back iron frame of claim 1, wherein: the utility model provides a motor drive mechanism, second actuating mechanism are electric putter, electric putter includes motor, shell, lead screw, telescopic link, travel switch, be equipped with screw-nut on the lead screw, screw-nut is connected at the outside telescopic link of lead screw with the cover, telescopic link and shell sliding fit, the output shaft of motor extends to in the shell, is connected through drive mechanism between output shaft and the lead screw, the motor sets up on the shell, the shell forms the part of the motor casing of motor, the shell is kept away from the one end of motor for with telescopic link complex supporting part, the supporting part inner wall is equipped with a fixed slot along telescopic link direction of operation, be equipped with detachable mounting in the fixed slot, travel switch is connected with the mounting.
7. The seat back iron frame of claim 6, wherein: the travel switch is provided with a through hole, the travel switch is fixed at the fixed groove through a fastening screw penetrating through the through hole, and the outer diameter of the fastening screw is larger than the width of the fixed groove.
8. The seat back iron frame of claim 6, wherein: the motor casing comprises a rear end cover, a front end cover and a casing, wherein the front end cover and the casing are of an integrated structure.
9. The seat back iron frame of claim 6, wherein: the shell rear end tip is equipped with fixed protruding, protruding being equipped with the fixed orifices, the fixed orifices is equipped with the opening that leads to one side, fixed protruding is equipped with the spacing groove in the opening part, is equipped with detachable limiting plate in the spacing groove.
10. The seat back iron frame of claim 6, wherein: the travel switch is provided with two travel switches, the two travel switches are connected to the PCB, and the position in the shell corresponding to the PCB is a PCB cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321556139.5U CN220494636U (en) | 2023-06-17 | 2023-06-17 | Iron frame of seat back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321556139.5U CN220494636U (en) | 2023-06-17 | 2023-06-17 | Iron frame of seat back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220494636U true CN220494636U (en) | 2024-02-20 |
Family
ID=89878185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321556139.5U Active CN220494636U (en) | 2023-06-17 | 2023-06-17 | Iron frame of seat back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220494636U (en) |
-
2023
- 2023-06-17 CN CN202321556139.5U patent/CN220494636U/en active Active
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