Automobile door strip based on combination of welding and clamping

By adopting a hybrid design of welding and clamping on the car door strips, the mobility of the clamp joints and the reinforcement structure are used to solve the deformation problems caused by welding, and stable and reliable door strip fixation is achieved.

CN223148182UActive Publication Date: 2025-07-25SHANGHAI SANGFA AUTOMOBILE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422398292.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-07-25
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

When existing car door strips are fixed by welding strips, there are problems such as over-positioning causing deformation, affecting the overall assembly quality.

Method used

Using a mixed design of welding and clamping, by setting welding strips and clamping joints in the installation groove on the door strip body, the clamping joints can be moved in the female buckle, reducing the number of welding strips, avoiding deformation, and setting reinforcement structures on the clamping joints to improve stability.

Benefits of technology

It effectively avoids deformation of the door strips, ensures the assembly quality of the door frame, and improves the fixing efficiency and connection stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automobile door strip based on mixing of welding and clamping, which comprises a door strip body and a welding strip, a mounting groove is arranged on the door strip body, the welding strip is fixed in the mounting groove, and the automobile door strip further comprises a clamping head. The clamping head is fixed in the mounting groove and comprises a clamping plate and a fixed plate, a clamping hole is formed in the clamping plate, a movable block is arranged in the clamping hole, the fixed plate is fixed in the mounting groove and perpendicularly connected with the clamping plate, and the clamping plate and the welding strip are located in the same plane; wherein the clamping head comprises a first clamping head and a second clamping head, and the first clamping head and the second clamping head are fixed to the two ends of the door strip body respectively. Compared with the prior art, welding and clamping are mixed, door strip deformation caused by all-welding is avoided, the automobile assembly quality is guaranteed, and the door strip has the advantages of being simple in structure, high in stability and the like.
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Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to an automobile door strip based on a combination of welding and clamping. Background Art

[0002] Automobile door strips, usually also known as door decorative strips or door anti-scratch strips, are decorative and practical accessories installed on automobile doors. Their main function is to protect the doors when they come into contact with the road surface or other objects, preventing the doors from being scratched or worn. Especially at positions such as the lower edge of the door and the front and rear door frames, installing anti-collision strips can effectively reduce the risk of door damage.

[0003] Existing automobile door strips are provided with welding strips, which are fixed to the door frame position on the door through the welding strips. However, to ensure the reliability of the door strip fixation, the number of welds on the door strip is relatively large. During the fixation of the welding strips, due to the relatively long length of the door strip, over-positioning occurs during welding, resulting in deformation of the door strip and affecting the overall assembly quality of the vehicle. Summary of the Utility Model

[0004] The purpose of the present utility model is to overcome the defect that in the above-mentioned existing technology, the door strip is fixed to the automobile door frame through the provided welding strips, and over-positioning of the welding strips causes deformation of the door strip and affects the overall assembly of the vehicle, and to provide an automobile door strip based on a combination of welding and clamping.

[0005] The purpose of the present utility model can be achieved through the following technical solutions:

[0006] An automobile door strip based on a combination of welding and clamping, comprising a door strip body and welding strips. An installation groove is provided on the door strip body, and the welding strips are fixed in the installation groove. The automobile door strip further comprises clamping heads;

[0007] The clamping heads are fixed in the installation groove. Each clamping head comprises a clamping plate and a fixing plate. A clamping hole is provided on the clamping plate, and a movable block is arranged in the clamping hole. The fixing plate is fixed in the installation groove and is vertically connected to the clamping plate. The clamping plate and the welding strips are in the same plane.

[0008] Preferably, the clamping heads comprise a first clamping head and a second clamping head, and the first clamping head and the second clamping head are respectively fixed at both ends of the door strip body.

[0009] Preferably, one end of the door strip body close to the first clamping head is provided with a first welding strip and a second welding strip, and the first clamping head is located between the first welding strip and the second welding strip.

[0010] Preferably, the number of the welding strips is multiple, and the welding strips are equally spaced between the first clamping head and the second clamping head.

[0011] Preferably, one end of the fixing plate away from the installation groove includes a first inclined portion, a vertical portion, a horizontal portion, a second inclined portion, and a third inclined portion connected in sequence. The other end of the first inclined portion is connected to one side of the installation groove, and the other end of the third inclined portion is connected to one end of the clamping plate away from the installation groove.

[0012] Preferably, stiffening blocks are provided on both sides of the clamping plate. The stiffening blocks are vertically fixed on the side of the fixing plate away from the clamping plate. An L-shaped card slot is provided at one end of the stiffening block close to the installation groove, and one side of the installation groove is located in the L-shaped card slot.

[0013] Preferably, one end of the clamping plate away from the installation groove is a boss structure.

[0014] Preferably, the fixing plate includes a first fixing plate and a second fixing plate, and the first fixing plate and the second fixing plate are located on both sides of the clamping plate.

[0015] Preferably, the welding strip includes a welding plate, a reinforcing rib, and a stiffening plate. The welding plate is fixed on one side of the installation groove. The stiffening plate is fixed in the installation groove and is vertically connected to the welding plate. The reinforcing rib is fixed on the side of the welding plate away from the stiffening plate, and one end is vertically connected to one side of the installation groove.

[0016] Preferably, the number of the reinforcing ribs is multiple, and the reinforcing ribs are parallel to each other. Compared with the prior art, the present utility model has the following advantages:

[0017] (1) When installing the automobile door strip in this solution, the clamping head on the door strip body is inserted into the corresponding female buckle on the door frame, and then the welding strip on the door strip is welded to the door frame to complete the installation of the automobile door strip on the automobile door frame. By arranging the welding strip and the clamping head in the installation groove of the door strip body, based on the fact that the clamping head can move in the female buckle, when welding and fixing the welding strip, the clamping head can move adaptively. Compared with the method of fixing the entire door strip body with welding strips, the mobility of the clamping head can avoid the deformation of the door strip body, ensure the assembly of the door strip and the door frame, and the reduction of the number of welding heads can also effectively improve the fixing efficiency of the door strip.

[0018] (2) A small number of clamping heads are added to the door strip body in this solution. While ensuring the connection strength between the door strip and the door frame, it avoids the over-positioning deformation caused by fixing only with welding strips; and a reinforcing rib structure is arranged at the upper end and both sides of the clamping head to ensure the connection stability and structural reliability of the clamping head. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the first perspective of the automobile door strip provided by the present utility model;

[0020] Figure 2 Schematic diagram of the structure of the car door strip from the second perspective provided by the present utility model;

[0021] Figure 3 Schematic diagram of the structure of the card joint from the first perspective provided by the present utility model;

[0022] Figure 4 Schematic diagram of the structure of the card joint from the second perspective provided by the present utility model;

[0023] Figure 5 Schematic diagram of the structure of the welding strip from the first perspective provided by the present utility model;

[0024] Figure 6 Schematic diagram of the structure of the welding strip from the second perspective provided by the present utility model;

[0025] In the figure: 1. Door strip body, 2. Welding strip, 3. Card joint, 21. Welding plate, 11. Installation groove, 22. Reinforcing rib, 23. Stiffening plate, 31. Card connection plate, 32. Card hole, 33. Movable block, 34. Fixed plate, 35. Stiffening block, 341. First inclined part, 342. Vertical part, 343. Horizontal part, 344. Second inclined part, 345. Third inclined part. Detailed implementation mode

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0028] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] It should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0031] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0032] Embodiment 1

[0033] As Figure 1 and Figure 2 shown, this embodiment provides an automotive door strip based on a combination of welding and snap connection, including a door strip body 1 and a welding strip 2. An installation groove 11 is provided on the door strip body 1, and the welding strip 2 is fixed in the installation groove 11. The automotive door strip further includes a snap joint 3;

[0034] The snap joint 3 is fixed in the installation groove 11. The snap joint 3 includes a snap plate 31 and a fixing plate 34. A snap hole 32 is provided on the snap plate 31, and a movable block 33 is provided in the snap hole 32. The fixing plate 34 is fixed in the installation groove 11 and is vertically connected to the snap plate 31. The snap plate 31 and the welding strip 2 are in the same plane.

[0035] In this solution, when installing the automotive door strip, the clamping joint 3 on the door strip body 1 is inserted into the corresponding female buckle set on the door frame, and then the welding strip 2 on the door strip is welded to the door frame to complete the installation of the automotive door strip onto the automotive door frame. By arranging the welding strip 2 and the clamping joint 3 in the installation groove 11 of the door strip body 1, based on the fact that the clamping joint 3 can move in the female buckle, when welding and fixing the welding strip 2, the clamping joint 3 can move adaptively. Compared with the method of fixing the entire door strip body with welding strips 2, the mobility of the clamping joint 3 can avoid the situation of causing deformation of the door strip body 1, ensure the assembly of the door strip and the door frame, and the reduction of the number of welding joints can also effectively improve the fixing efficiency of the door strip.

[0036] Among them, as Figure 3 and Figure 4 shown, the clamping joint 3 includes a first clamping joint and a second clamping joint, and the first clamping joint and the second clamping joint are respectively fixed at both ends of the door strip body 1. One end of the door strip body 1 close to the first clamping joint is provided with a first welding strip and a second welding strip, and the first clamping joint is located between the first welding strip and the second welding strip.

[0037] A small number of clamping joints are added to the door strip body. While ensuring the connection strength between the door strip and the door frame, it avoids the situation of over-positioning deformation caused by fixing only with welding strips; and reinforcing rib structures are arranged at the upper end and both sides of the clamping joint to ensure the connection stability and structural reliability of the clamping joint.

[0038] Optionally, the number of welding strips 2 is multiple, and each welding strip 2 is evenly distributed between the first clamping joint and the second clamping joint. The clamping joint can also be arranged at both ends of the door strip body to enable the two ends of the door strip to move adaptively.

[0039] Specifically, one end of the fixing plate 34 away from the installation groove 11 includes a first inclined portion 341, a vertical portion 342, a horizontal portion 343, a second inclined portion 344 and a third inclined portion 345 connected in sequence. The other end of the first inclined portion 341 is connected to one side of the installation groove 11, and the other end of the third inclined portion 345 is connected to one end of the clamping plate 31 away from the installation groove 11.

[0040] In a preferred embodiment, stiffening blocks 35 are provided on both sides of the clamping plate 31. The stiffening blocks 35 are vertically fixed on the side of the fixing plate 34 away from the clamping plate 31. One end of the stiffening block 35 close to the installation groove 11 is provided with an L-shaped card slot, and one side of the installation groove 11 is located in the L-shaped card slot.

[0041] Stiffening blocks 35 are arranged at the upper end and both sides of the clamping joint, and cooperate with the fixing plate 34 on one side of the clamping plate 31 to ensure the connection stability and structural reliability of the clamping joint.

[0042] Among them, the end of the clamping plate 31 away from the installation groove 11 is a boss structure. Chamfers can be provided on both sides and a fillet can be provided at the bottom at this end of the clamping plate 31, so that the size of one end of the clamping plate 31 gradually decreases, facilitating the connection between the clamping head and the female buckle.

[0043] Among them, the fixing plate 34 includes a first fixing plate and a second fixing plate, and the first fixing plate and the second fixing plate are located on both sides of the clamping plate 31. The stability of the clamping plate 31 and the reliability of the connection of the clamping head 3 are increased.

[0044] Preferred embodiment, such as Figure 5 and Figure 6 As shown, the welding strip 2 includes a welding plate 21, a reinforcing rib 22 and a stiffening plate 23. The welding plate 21 is fixed on one side of the installation groove 11, the stiffening plate 23 is fixed in the installation groove 11 and is vertically connected to the welding plate 21, and the reinforcing rib 22 is fixed on the side of the welding plate 21 away from the stiffening plate 23 and one end is vertically connected to one side of the installation groove 11. Among them, the number of the reinforcing ribs 22 is multiple, and the reinforcing ribs 22 are parallel to each other.

[0045] The structure of the welding strip is optimized. In cooperation with the reinforcing rib 22, the connection between the welding plate 21 and the door strip body 1 is strengthened, and the reliability and stability of the connection between the welding plate 21 and the door strip body 1 are improved.

[0046] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. An automotive door strip based on a hybrid of welding and snap connection, comprising a door strip body (1) and a welding strip (2). An installation groove (11) is provided on the door strip body (1), and the welding strip (2) is fixed in the installation groove (11). It is characterized in that, The car door strip further includes a clamping joint (3); The clamping joint (3) is fixed in the installation groove (11). The clamping joint (3) includes a clamping plate (31) and a fixing plate (34). A clamping hole (32) is provided on the clamping plate (31), and a movable block (33) is arranged in the clamping hole (32). The fixing plate (34) is fixed in the installation groove (11) and is vertically connected to the clamping plate (31). The clamping plate (31) and the welding strip (2) are in the same plane.

2. The automotive door strip based on a combination of welding and snap connection according to claim 1, wherein The clamping joint (3) includes a first clamping joint and a second clamping joint, and the first clamping joint and the second clamping joint are respectively fixed at both ends of the door strip body (1).

3. The automotive door strip based on a hybrid of welding and snap connection according to claim 2, wherein, One end of the door strip body (1) close to the first clamping joint is provided with a first welding strip and a second welding strip, and the first clamping joint is located between the first welding strip and the second welding strip.

4. The automotive door strip based on a hybrid of welding and snap connection according to claim 1, characterized in that, The number of the welding strips (2) is multiple, and the welding strips (2) are equally spaced between the first clamping joint and the second clamping joint.

5. A vehicle door strip based on a hybrid of welding and snap connection according to claim 1, characterized in that, One end of the fixing plate (34) away from the installation groove (11) includes a first inclined portion (341), a vertical portion (342), a horizontal portion (343), a second inclined portion (344) and a third inclined portion (345) which are connected in sequence. The other end of the first inclined portion (341) is connected to one side of the installation groove (11), and the other end of the third inclined portion (345) is connected to one end of the clamping plate (31) away from the installation groove (11).

6. The automotive door strip based on a hybrid of welding and snap connection according to claim 1, characterized in that Reinforcing blocks (35) are arranged on both sides of the clamping plate (31). The reinforcing blocks (35) are vertically fixed on the side of the fixing plate (34) away from the clamping plate (31). An L-shaped clamping groove is provided at one end of the reinforcing block (35) close to the installation groove (11), and one side of the installation groove (11) is located in the L-shaped clamping groove.

7. The automotive door strip based on a hybrid of welding and snap connection according to claim 1, characterized in that, One end of the clamping plate (31) away from the installation groove (11) is a boss structure.

8. A vehicle door strip based on a hybrid of welding and snap connection according to claim 1, characterized in that The fixing plate (34) includes a first fixing plate and a second fixing plate, and the first fixing plate and the second fixing plate are located on both sides of the clamping plate (31).

9. The automotive door strip based on a hybrid of welding and snap connection according to claim 1, wherein The welding strip (2) includes a welding plate (21), a reinforcing rib (22) and a stiffening plate (23). The welding plate (21) is fixed on one side of the installation groove (11). The stiffening plate (23) is fixed in the installation groove (11) and is vertically connected to the welding plate (21). The reinforcing rib (22) is fixed on the side of the welding plate (21) away from the stiffening plate (23), and one end is vertically connected to one side of the installation groove (11).

10. A vehicle door strip based on a hybrid of welding and snap connection according to claim 9, characterized in that, The number of the reinforcing ribs (22) is multiple, and the reinforcing ribs (22) are parallel to each other.