CN215042299U - Lap joint pipe fitting for automobile seat framework - Google Patents
Lap joint pipe fitting for automobile seat framework Download PDFInfo
- Publication number
- CN215042299U CN215042299U CN202120478005.0U CN202120478005U CN215042299U CN 215042299 U CN215042299 U CN 215042299U CN 202120478005 U CN202120478005 U CN 202120478005U CN 215042299 U CN215042299 U CN 215042299U
- Authority
- CN
- China
- Prior art keywords
- pipe
- vertical
- pipe surface
- transverse
- notch
- 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
Images
Landscapes
- Seats For Vehicles (AREA)
Abstract
The utility model discloses a lap joint pipe fitting for an automobile seat framework, which comprises a horizontal square pipe and a vertical square pipe; the first transverse pipe surface, the second transverse pipe surface and the fourth transverse pipe surface are inserted into the vertical pipe through the first notch, and the first transverse pipe surface is welded with the second vertical pipe surface along the first notch through the first welding part; the first vertical pipe surface is welded with the second horizontal pipe surface along the first notch through a second welding part; the fourth horizontal pipe surface is welded with the third vertical pipe surface through a third welding part; the third horizontal pipe surface is welded with the fourth vertical pipe surface along the third notch through a fourth welding part. The utility model discloses can realize the reliable overlap joint of the same cross-section pipe fitting through notch and four weld parts, reduce preparation process complexity, skeleton weight and manufacturing cost under the prerequisite of ensureing car seat skeleton intensity.
Description
Technical Field
The utility model relates to a car seat skeleton texture especially relates to a car seat is overlap joint pipe fitting for skeleton.
Background
At present, the back skeleton of car seat adopts the pipe fitting as the girder mostly, and it has simple structure, the advantage that the preparation mould is with low costs, and the pipe fitting includes pipe, square pipe etc. and square pipe not only has outside above-mentioned two advantages concurrently, compares the pipe in addition lightweight, promote welding quality and optimize the advantage of welded manufacturing. However, the seat framework adopting the square tube still has the following defects:
1. compared with a stamping part beam and a round tube beam, the square tube is not easy to form, even if the square tube is simply bent and formed, the bending radius and the forming feasibility of the square tube are also greatly restricted by the section and the materials of the bent tube, and the square tube is greatly limited in the design of the seat framework.
2. Because the problems of the bending radius and the forming feasibility of the square tube exist, the technical difficulty exists when the end part joint of the square tube is in lap joint.
At present, the square tube overlapping mode in the prior art generally has three types: (1) the cross sections of the two square pipes are unequal, and the end part of the square pipe with the large cross section is provided with an opening, so that the end part of the square pipe with the small cross section can be matched and penetrated into the opening, and is fixedly connected at the joint by a welding seam; the large-section square tube increases the tube diameter, so that the problems of material waste, weight increase, cost increase, large occupied space and the like are caused; (2) the cross sections of the two square pipes are equal, a gap is reserved between the two square pipes, a sheet metal part is added at the external connection part of the square pipes to connect the two square pipes, and the sheet metal part is used for effectively transferring the bearing capacity of the pipe, so that the thickness of the sheet metal part is usually 2-3.5mm and far exceeds the thickness of the square pipes by 0.8-1.2mm, and the weight of the seat framework, the welding process and the cost are increased; (3) the cross-section of two square pipes equals, direct butt welding between two square pipes, but by square pipe cross-section the same, square pipe edge has the chamfer design, consequently, can only realize two welding joints between two pipes and link, make the pipe fitting bearing capacity transmission only lean on two welding joints atress, there is the risk of tearing the destruction after the material atress around the welding joint easily, consequently according to particular case, also can increase the sheet metal component outside square pipe and carry out the structure reinforcement, the thickness of sheet metal component this moment can be slightly thin or select low-strength material, but also increased the whole weight of skeleton, and the manufacturing procedure is complicated, and is high in cost.
Disclosure of Invention
An object of the utility model is to provide a car seat is overlap joint pipe fitting for skeleton can realize the reliable overlap joint of the same cross-section pipe fitting through notch and four weld parts, has reduced preparation process complexity, skeleton weight and manufacturing cost under the prerequisite of ensureing car seat skeleton intensity.
The utility model discloses a realize like this:
a lap joint pipe fitting for an automobile seat framework comprises a transverse square pipe and a vertical square pipe; the transverse square pipe comprises a first transverse pipe surface, a second transverse pipe surface, a third transverse pipe surface and a fourth transverse pipe surface, the first transverse pipe surface, the second transverse pipe surface, the third transverse pipe surface and the fourth transverse pipe surface are sequentially connected end to form a hollow square pipe structure, and two adjacent transverse pipe surfaces are in transition connection through a chamfer surface or a fillet surface; the vertical pipe comprises a first vertical pipe surface, a second vertical pipe surface, a third vertical pipe surface and a fourth vertical pipe surface, the first vertical pipe surface, the second vertical pipe surface, the third vertical pipe surface and the fourth vertical pipe surface are sequentially connected end to form a hollow square pipe structure, and two adjacent vertical pipe surfaces are in transitional connection through a chamfer surface or a fillet surface; the cross sections of the transverse square pipe and the vertical square pipe are the same;
a first notch is formed in the first vertical pipe surface at the end part of the vertical square pipe, the first notch is connected with a second vertical pipe surface and a fourth vertical pipe surface, a second notch is formed in the fourth vertical pipe surface, and the second notch is connected with the first notch and the third vertical pipe surface; a third notch is formed in the end part of the transverse square pipe at the joint of the second transverse pipe surface and the third transverse pipe surface;
when the vertical square pipe and the transverse square pipe are oppositely inserted and lapped, the first transverse pipe surface, the second transverse pipe surface and the fourth transverse pipe surface are inserted into the vertical square pipe through the first notch, and the outer wall of the first transverse pipe surface is contacted with the inner wall of the second vertical pipe surface, so that the first transverse pipe surface is welded and fixed with the second vertical pipe surface along the edge of the first notch through the first welding part; the end part of the first vertical pipe surface is contacted with the outer wall of the second transverse pipe surface, so that the first vertical pipe surface is welded and fixed with the second transverse pipe surface along the edge of the first notch through a second welding part; the end part of the fourth transverse pipe surface is contacted with the inner wall of the third vertical pipe surface, so that the fourth transverse pipe surface is welded and fixed with the third vertical pipe surface through a third welding part; the inner wall of the third transverse pipe surface is in contact with the outer wall of the fourth vertical pipe surface, so that the third transverse pipe surface is welded and fixed with the fourth vertical pipe surface through the fourth welding part along the edge of the third notch.
The length of the first notch along the axial direction of the vertical square pipe is greater than the width of the transverse square pipe.
The second notch is greater than the pipe wall thickness of horizontal side pipe along the axial length of vertical side pipe.
The height of the third notch is larger than the thickness of the pipe wall of the vertical pipe.
The length of the third notch along the axial direction of the transverse square pipe does not exceed the distance from the connecting end of the fourth vertical pipe surface and the first notch to the inner wall of the third vertical pipe surface.
The end part of the first transverse pipe surface is provided with a fourth notch, and the fourth notch is connected with the second transverse pipe surface and the fourth transverse pipe surface.
The first welding part, the second welding part, the third welding part and the fourth welding part are in a strip-shaped structure.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses a square pipe and notch do not receive the restriction of the cross-section size and dimension of square pipe, can realize modularization, the standardized production of square pipe according to the square pipe size adjustment of in-service use, have reduced manufacturing cost, and use the flexibility high, are applicable to the seat skeleton overlap joint of various motorcycle types.
2. The utility model discloses a contact site between the horizontal side pipe of notch opposite insertion and the perpendicular side pipe is fixed through four weld parts, all is equipped with long banding weld part on every pipe surface of horizontal side pipe and perpendicular side pipe, ensures pipe fitting lapped stability, provides effective support for parts such as whole chair foaming, face cover, working of plastics to the intensity of car seat skeleton has been ensured.
3. The utility model discloses a can match the slot mouth of inserting owing to being equipped with on horizontal side's pipe and the perpendicular side's pipe, can realize the horizontal side's pipe of the same cross-section and the inserting of perpendicular side's pipe, need not the cross-section of increase side's pipe, and the matching laminating degree of horizontal side's pipe and perpendicular side's pipe is higher, also need not externally to set up the sheet metal component, does not increase whole weight and volume, only needs one welding process to accomplish, reduces the manufacturing cost of pipe fitting.
4. The utility model discloses can realize the grafting in minimum pipe fitting cross-section, reduce the occupation space of seat skeleton greatly, be favorable to arranging and designing of other parts of whole chair, provide more nimble design space for headrest, unblock support etc..
To sum up, the utility model discloses can realize inserting of the same cross-section pipe fitting through the notch to realize pipe fitting overlap joint reliability through four weld parts, and need not to set up enhancement sheet metal component or bend side's pipe, reduced preparation process complexity, skeleton weight and manufacturing cost under the prerequisite of ensureing car seat skeleton intensity.
Drawings
FIG. 1 is a perspective view of the lap joint pipe fitting for the car seat frame of the present invention;
FIG. 2 is a perspective view showing the lap joint of the lap joint pipe fitting for the seat frame of the automobile of the present invention;
FIG. 3 is a schematic diagram of the lap joint of a horizontal square tube and a vertical square tube in the lap joint pipe fitting for the automobile seat frame of the present invention;
FIG. 4 is a perspective view of a cross square tube in the lap joint pipe fitting for the automobile seat frame of the present invention;
FIG. 5 is a perspective view of a vertical pipe in the lap joint pipe for the car seat frame of the present invention;
fig. 6 is through the utility model discloses car seat skeleton is with overlap joint pipe fitting middle and horizontal square pipe and vertical square pipe overlap joint car seat skeleton.
In the figure, 1 is a transverse square pipe, 11 is a first transverse pipe surface, 111 is a fourth notch, 12 is a second transverse pipe surface, 13 is a third transverse pipe surface, 14 is a fourth transverse pipe surface, 15 is a third notch, 2 is a vertical square pipe, 21 is a first vertical pipe surface, 211 is a first notch, 22 is a second vertical pipe surface, 23 is a third vertical pipe surface, 24 is a fourth vertical pipe surface, 241 is a second notch, 31 is a first welding part, 32 is a second welding part, 33 is a third welding part, 34 is a fourth welding part, and 4 is an automobile seat framework.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, a lap joint pipe for an automobile seat frame comprises a transverse square pipe 1 and a vertical square pipe 2; referring to fig. 4, a transverse square tube 1 includes a first transverse tube surface 11, a second transverse tube surface 12, a third transverse tube surface 13 and a fourth transverse tube surface 14, the first transverse tube surface 11, the second transverse tube surface 12, the third transverse tube surface 13 and the fourth transverse tube surface 14 are sequentially connected end to form a hollow square tube structure, and two adjacent transverse tube surfaces are transitionally connected through a chamfer surface or a fillet surface; referring to fig. 5, the vertical square tube 2 includes a first vertical tube surface 21, a second vertical tube surface 22, a third vertical tube surface 23 and a fourth vertical tube surface 24, the first vertical tube surface 21, the second vertical tube surface 22, the third vertical tube surface 23 and the fourth vertical tube surface 24 are sequentially connected end to form a hollow square tube structure, and two adjacent vertical tube surfaces are transitionally connected through a chamfer surface or a fillet surface; the cross sections of the horizontal square pipe 1 and the vertical square pipe 2 are the same.
At the end of the vertical square tube 2, a first notch 211 is arranged on the first vertical tube surface 21, the first notch 211 is connected with a second vertical tube surface 22 and a fourth vertical tube surface 24, a second notch 241 is arranged on the fourth vertical tube surface 24, and the second notch 241 is connected with the first notch 211 and the third vertical tube surface 23; and a third notch 15 is arranged at the joint of the second transverse pipe surface 12 and the third transverse pipe surface 13 at the end part of the transverse square pipe 1.
Referring to fig. 1 to 3, when the vertical tube 2 and the horizontal tube 1 are oppositely inserted and overlapped at 90 °, the first horizontal tube surface 11, the second horizontal tube surface 12 and the fourth horizontal tube surface 14 are inserted into the vertical tube 2 through the first notch 211, and the outer wall of the first horizontal tube surface 11 contacts with the inner wall of the second vertical tube surface 22, so that the first horizontal tube surface 11 is welded and fixed with the second vertical tube surface 22 along the edge of the first notch 211 by the first welding part 31; the end part of the first vertical pipe surface 21 is contacted with the outer wall of the second transverse pipe surface 12, so that the first vertical pipe surface 21 is welded and fixed with the second transverse pipe surface 12 along the edge of the first notch 211 through a second welding part 32; the end part of the fourth transverse pipe surface 14 is contacted with the inner wall of the third vertical pipe surface 23, so that the fourth transverse pipe surface 14 is welded and fixed with the third vertical pipe surface 23 through a third welding part 33; the inner wall of the third transverse pipe surface 13 contacts with the outer wall of the fourth vertical pipe surface 24, so that the third transverse pipe surface 13 is welded and fixed with the fourth vertical pipe surface 24 through a fourth welding part 34 along the edge of the third notch 15.
The length of the second notch 241 along the axial direction of the vertical tube 2 is slightly larger than the thickness of the tube wall of the horizontal tube 1, so that the end part of the fourth horizontal tube surface 14 of the horizontal tube 1 can be in contact with the inner wall of the third vertical tube surface 23.
The height of the third notch 15 is slightly larger than the thickness of the pipe wall of the vertical pipe 2, so that the fourth vertical pipe surface 24 can be inserted into the transverse square pipe 1 through the third notch 15.
The axial length of the third notch 15 along the transverse square pipe 1 does not exceed the distance from the connecting end of the fourth vertical pipe surface 24 and the first notch 211 to the inner wall of the third vertical pipe surface 23, and the depth of the transverse square pipe 1 inserted into the vertical square pipe 2 can be limited.
The end of the first transverse pipe surface 11 is provided with a fourth notch 111, the fourth notch 111 is connected with the second transverse pipe surface 12 and the fourth transverse pipe surface 14, the size of the fourth notch 111 along the axial direction of the transverse square pipe 1 should be matched with the size of a chamfer surface or a fillet surface between the second vertical pipe surface 22 and the third vertical pipe surface 23, and the end of the fourth transverse pipe surface 14 can be in contact with the inner wall of the third vertical pipe surface 23 when the transverse square pipe 1 is inserted.
The first welding portion 31, the second welding portion 32, the third welding portion 33 and the fourth welding portion 34 are of long strip-shaped structures, stable internal support can be formed, the lap joint reliability of the transverse square pipe 1 and the vertical square pipe 2 is improved, and therefore the strength of the automobile seat framework is ensured.
The utility model discloses the overlap joint mode between the horizontal side pipe 1 and the vertical side pipe 2 of overlap joint pipe fitting is: inserting the transverse square pipe 1 into the vertical square pipe 2 directly through the first notch 211, enabling the outer wall of the first transverse pipe surface 11 to be in contact with the inner wall of the second vertical pipe surface 22, and welding and fixing the transverse square pipe 1 on the contact surface of the first transverse pipe surface 11 and the second vertical pipe surface 22 along the edge of the first notch 211 through a first welding part 31; the end part of the first vertical pipe surface 21 is contacted with the outer wall of the second transverse pipe surface 12, so that the first vertical pipe surface 21 is welded and fixed with the second transverse pipe surface 12 along the edge of the first notch 211 through a second welding part 32; the end part of the fourth transverse pipe surface 14 is contacted with the inner wall of the third vertical pipe surface 23, so that the fourth transverse pipe surface 14 is welded and fixed with the third vertical pipe surface 23 through a third welding part 33; the inner wall of the third transverse pipe surface 13 contacts with the outer wall of the fourth vertical pipe surface 24, so that the third transverse pipe surface 13 is welded and fixed with the fourth vertical pipe surface 24 through a fourth welding part 34 along the edge of the third notch 15. Through first welding part 31, second welding part 32, third welding part 33 and fourth welding part 34 in horizontal side pipe 1 and perpendicular side pipe 2 inside along four directions formation four supports, and all be equipped with the welding part on four horizontal tube faces of horizontal side pipe 1 and every perpendicular tube face of perpendicular side pipe 2, effectively ensured the overlap joint stability of horizontal side pipe 1 and perpendicular side pipe 2, need not to set up the sheet metal component externally and can reach overlap joint design intensity.
Referring to fig. 6, when the car seat frame 4 is manufactured, corresponding notches are reserved at two ends of the horizontal square tube 1 and the vertical square tube 2, so that the vertical butt joint of the horizontal square tube 1 and the vertical square tube 2 can be realized, the square tube and the notches thereof can be designed in a modularized mode, the limitation of factors such as the section size and the number of square tube materials is avoided, and the fast and stable lap joint of the car seat frame 4 can be realized without bending the square tube.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. A lap joint pipe fitting for an automobile seat framework comprises a transverse square pipe and a vertical square pipe; the transverse square pipe comprises a first transverse pipe surface, a second transverse pipe surface, a third transverse pipe surface and a fourth transverse pipe surface, the first transverse pipe surface, the second transverse pipe surface, the third transverse pipe surface and the fourth transverse pipe surface are sequentially connected end to form a hollow square pipe structure, and two adjacent transverse pipe surfaces are in transition connection through a chamfer surface or a fillet surface; the vertical pipe comprises a first vertical pipe surface, a second vertical pipe surface, a third vertical pipe surface and a fourth vertical pipe surface, the first vertical pipe surface, the second vertical pipe surface, the third vertical pipe surface and the fourth vertical pipe surface are sequentially connected end to form a hollow square pipe structure, and two adjacent vertical pipe surfaces are in transitional connection through a chamfer surface or a fillet surface; the cross sections of the transverse square pipe and the vertical square pipe are the same;
the method is characterized in that: a first notch is formed in the first vertical pipe surface at the end part of the vertical square pipe, the first notch is connected with a second vertical pipe surface and a fourth vertical pipe surface, a second notch is formed in the fourth vertical pipe surface, and the second notch is connected with the first notch and the third vertical pipe surface; a third notch is formed in the end part of the transverse square pipe at the joint of the second transverse pipe surface and the third transverse pipe surface;
when the vertical square pipe and the transverse square pipe are oppositely inserted and lapped, the first transverse pipe surface, the second transverse pipe surface and the fourth transverse pipe surface are inserted into the vertical square pipe through the first notch, and the outer wall of the first transverse pipe surface is contacted with the inner wall of the second vertical pipe surface, so that the first transverse pipe surface is welded and fixed with the second vertical pipe surface along the edge of the first notch through the first welding part; the end part of the first vertical pipe surface is contacted with the outer wall of the second transverse pipe surface, so that the first vertical pipe surface is welded and fixed with the second transverse pipe surface along the edge of the first notch through a second welding part; the end part of the fourth transverse pipe surface is contacted with the inner wall of the third vertical pipe surface, so that the fourth transverse pipe surface is welded and fixed with the third vertical pipe surface through a third welding part; the inner wall of the third transverse pipe surface is in contact with the outer wall of the fourth vertical pipe surface, so that the third transverse pipe surface is welded and fixed with the fourth vertical pipe surface through the fourth welding part along the edge of the third notch.
2. The lap joint pipe for the automobile seat frame according to claim 1, characterized in that: the length of the first notch along the axial direction of the vertical square pipe is greater than the width of the transverse square pipe.
3. The lap joint pipe for the automobile seat frame according to claim 1, characterized in that: the second notch is greater than the pipe wall thickness of horizontal side pipe along the axial length of vertical side pipe.
4. The lap joint pipe for the automobile seat frame according to claim 1, characterized in that: the height of the third notch is larger than the thickness of the pipe wall of the vertical pipe.
5. The lap pipe for the automobile seat frame according to claim 1 or 4, characterized in that: the length of the third notch along the axial direction of the transverse square pipe does not exceed the distance from the connecting end of the fourth vertical pipe surface and the first notch to the inner wall of the third vertical pipe surface.
6. The lap joint pipe for the automobile seat frame according to claim 1, characterized in that: the end part of the first transverse pipe surface is provided with a fourth notch, and the fourth notch is connected with the second transverse pipe surface and the fourth transverse pipe surface.
7. The lap joint pipe for the automobile seat frame according to claim 1, characterized in that: the first welding part, the second welding part, the third welding part and the fourth welding part are in a strip-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120478005.0U CN215042299U (en) | 2021-03-05 | 2021-03-05 | Lap joint pipe fitting for automobile seat framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120478005.0U CN215042299U (en) | 2021-03-05 | 2021-03-05 | Lap joint pipe fitting for automobile seat framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215042299U true CN215042299U (en) | 2021-12-07 |
Family
ID=79254896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120478005.0U Active CN215042299U (en) | 2021-03-05 | 2021-03-05 | Lap joint pipe fitting for automobile seat framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215042299U (en) |
-
2021
- 2021-03-05 CN CN202120478005.0U patent/CN215042299U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7488022B2 (en) | Universal structural joint for automotive frames | |
| US20070187995A1 (en) | Rail to rocker joint using hydroformed members | |
| CN101378948B (en) | Frame with closed cross-section | |
| CN215042299U (en) | Lap joint pipe fitting for automobile seat framework | |
| JP5382201B2 (en) | Structural joint members | |
| CN210459520U (en) | Connecting and fixing piece for steel structure | |
| JP2818933B2 (en) | Insert fitting for pipe welding and pipe welding structure using the same | |
| CN213685654U (en) | Pipe fitting connecting structure | |
| CN209814202U (en) | Marine sandwich panel turning connection structure | |
| US11448192B2 (en) | Support structure for a wind turbine | |
| CN212921414U (en) | Connecting structure of rolled section bar, rolled section bar and protective cross beam for vehicle | |
| CN101508312B (en) | Welded joint and method for forming the joint | |
| CN216689985U (en) | Steel frame curtain wall mechanical tubes | |
| CN221278185U (en) | Tube beam mortise and tenon structure for vehicle | |
| CN220934284U (en) | Connecting piece of battery internal bearing beam | |
| CN216231471U (en) | Longitudinal pull rod support | |
| CN216340443U (en) | Tubular beam member | |
| CN216812407U (en) | Heavy type pipe with different diameter between the upper and lower parts made of seamless pipe | |
| CN211196383U (en) | Automobile instrument crossbeam connection structure | |
| CN217378846U (en) | Precast pile end plate, connector, connection structure and precast pile | |
| CN218879266U (en) | Female joint, main chord member and round tenon standard knot | |
| CN211597058U (en) | Connecting structure for reinforcing steel pipe joints by utilizing channel steel | |
| CN217420010U (en) | Joint for reinforcing tubular penetration connection | |
| CN216423980U (en) | Axle housing structure of driving rear axle | |
| CN214274166U (en) | Structural steel pipe with improved bearing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |