Automobile pipeline clamp

Abstract

The utility model discloses a kind of automobile pipeline clamps, it includes: plunger, the middle part is provided with the air slot of lateral part through, the air slot is provided with the elastic sheet extending along plunger length direction, the lower end of the plunger is connected with flexible limiting disc;The bottom of the flexible limiting disc is installed with buckle, the shell inside of the buckle is formed around and is formed into accommodating cavity, the clamping ring is provided in the accommodating cavity, the clamping ring is C type structure, extends obliquely upward from shell bottom, and is spaced apart with shell inner cavity wall arrangement.This utility model is designed into two layers of clamping structure, can realize more stable and more durable clamping effect.

Description

Technical Field

[0001] This utility model relates to the field of ear clip technology, specifically to an automotive cable clip. Background Technology

[0002] In the automotive manufacturing industry, the reliable securing of pipelines (such as fuel lines, brake fluid lines, and cable harnesses) is crucial to the safety and durability of the entire vehicle. Currently, widely used automotive cable clamps typically consist of a single snap-fit ​​structure, which simultaneously secures the cable to the vehicle body and clamps it. This traditional one-piece structure has significant inherent drawbacks: First, during long-term vehicle operation, vibrations from the engine or road surface are directly transmitted to the pipeline through the clamping structure. A single rigid clamping point or surface is prone to stress concentration, leading to surface wear on the pipeline and even fatigue rupture of the pipeline (especially soft plastic or rubber hoses), posing a safety hazard. Second, to combat vibration, traditional snap-fits often need to press the pipeline very tightly, which increases the risk of "damaging" the pipeline. Furthermore, this structure is poorly adaptable to pipelines of different diameters or thermal expansion and contraction due to temperature changes, resulting in either excessively loose clamping or difficult assembly.

[0003] Furthermore, although there are some improvements in the existing technology, such as adding rubber pads inside the clips, these usually only alleviate the wear problem locally, and fail to achieve effective buffering and absorption of vibration energy from the overall structure, nor can they fundamentally solve the contradiction between clamping force and pipeline protection.

[0004] Therefore, there is an urgent need in this field for an innovative pipeline clamp structure that can decouple and optimize the installation and fixing functions with the vehicle body and the clamping and protection functions with pipelines at the system level, thereby significantly improving its vibration resistance and pipeline protection capabilities while ensuring a firm installation. Summary of the Invention

[0005] The purpose of this invention is to provide an automotive cable clamp to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive cable clamp, comprising: a plunger with a through-hole groove in its middle, a spring extending along the length of the plunger in the groove, and a flexible limiting disc connected to the lower end of the plunger; a retaining ring is installed at the bottom of the flexible limiting disc, and a receiving cavity is formed inside the housing of the retaining ring, and a clamping ring is provided inside the receiving cavity. The clamping ring has a C-shaped structure, extends obliquely upward from the bottom of the housing, and is spaced apart from the inner wall of the housing.

[0007] Preferably, the spring sheet includes two sets arranged symmetrically from left to right, each set including a first spring sheet and a second spring sheet, wherein the length of the first spring sheet is greater than the length of the second spring sheet.

[0008] Preferably, the end thickness of the second spring is reduced to form a stepped structure.

[0009] Preferably, the end of the clamping ring is provided with an extension section facing the inner wall of the housing.

[0010] Preferably, the housing opening of the buckle is provided with an inwardly converging guide section on one side, the guide section being parallel to the outer wall of the other side of the housing opening and opposite to the opening of the clamping ring.

[0011] Preferably, the housing of the buckle has a square structure and the internal accommodating cavity is circular.

[0012] Preferably, the clamping ring is made of rubber or silicone.

[0013] Preferably, both the first and second springs are connected to the upper wall of the empty slot.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the utility model is designed with a two-layer clamping structure, which can achieve a more stable and more durable clamping effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the front view of the present utility model. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-2 As shown, this utility model provides a technical solution: an automotive cable clamp, comprising... A plunger 1 has a through-hole 11 in its center, and a spring piece is disposed within the through-hole 11, extending along the length of the plunger 1. There are two sets of spring pieces, left and right, symmetrically arranged around the center of the plunger. Each set includes a first spring piece 12 and a second spring piece 13. The length of the first spring piece 12 is greater than the length of the second spring piece 13. Both spring pieces are connected to the upper wall of the through-hole 11 and extend along the length of the through-hole 11.

[0018] Continue to refer to Figure 1As shown, the end thickness of the second spring 12 is reduced to form a stepped structure. A long plunger 1 is used for insertion into the automotive sheet metal mounting hole. Automotive sheet metal mounting holes have manufacturing tolerances (such as slight differences in hole diameter and sheet thickness). The combination of a long spring and a short spring can expand the compatibility range of the clip. Longer springs have a greater elastic deformation range, which can adapt to slightly larger hole diameters or thicker sheet metal; shorter springs have a smaller deformation range, which can provide sufficient locking force for smaller hole diameters or thinner sheet metal; the combination of the two can accommodate the size fluctuations of sheet metal holes in different batches and locations, avoiding the problems of "too loose to fall off" or "too tight to fit".

[0019] During assembly: The longer spring tab has a gentler insertion angle, reducing resistance when inserting into the sheet metal hole (making installation easier); the shorter spring tab assists in positioning and prevents the clip from tilting. After assembly: The long and short spring tabs "clamp" into the inner wall of the sheet metal hole from different positions, forming multi-point support, which greatly improves the clip's resistance to falling off (stronger holding force), and can also resist horizontal / vertical tension caused by pipeline vibration and vehicle driving impact.

[0020] In some scenarios, it is necessary to disassemble the clips (such as pipeline maintenance). The end of the long spring is usually easier to reach, especially since the step structure is designed in this embodiment. The long spring can be lifted by a tool (such as a rocker) to unlock it. The short spring maintains a certain position during disassembly to prevent the clip from falling off or becoming misaligned.

[0021] It also includes a flexible limiting disc 2 connected to the lower end of the plunger 1. The flexible limiting disc 2 has a circular structure and provides limiting and support inside the automotive sheet metal mounting hole.

[0022] A retaining ring 3 is installed at the bottom of the flexible limiting plate 2. (Refer to...) Figure 1 and Figure 2 As shown, the housing of the buckle 3 has a square structure, and the interior of the buckle 3 is surrounded by a circular receiving cavity.

[0023] The square outer shell structure ensures that the buckle 3 is not easily deformed under pressure, resulting in higher stability. It also saves space and maintains a compact design. Raised reinforcing ribs 33 are also provided on the outer wall of the buckle 3.

[0024] Continue to refer to Figure 1 and Figure 2 As shown, the internal design of the retaining ring 3 is a major highlight of this embodiment. The accommodating cavity is surrounded by two layers. The outer layer is the shell of the retaining ring 3, and the inner wall of the shell of the retaining ring 3 has an arc-shaped structure and a clamping ring 31 is embedded therein. The clamping ring 31 has an overall C-shaped structure. The clamping ring 31 extends obliquely upward from the bottom of the shell and bends to form the main body of the clamping ring 31. The main body of the clamping ring 31 is spaced apart from the inner wall of the shell.

[0025] ReferenceFigure 2 As shown, the end of the clamping ring 31 is provided with an extension section 311 facing the inner wall of the housing. When the clamping ring 31 clamps the pipeline and vibration occurs, the extension section 311 abuts against the inner wall of the housing to achieve a limiting effect.

[0026] Finally, continue to refer to Figure 2 As shown, a guide section 321 that converges inward is provided on one side of the opening of the housing of the buckle 3. The guide section 321 is parallel to the outer wall of the other side of the opening of the housing, and the guide section 321 is opposite to the opening of the clamping ring 31, which can play a guiding role.

[0027] The core advantage of this double-layer clamping structure (outer clamping cavity + inner clamping ring) is that it provides double buffering and force relief and adapts to pipeline deviation, which can solve the two major pain points of traditional pipeline clamps: "not clamping tightly" and "damaging the pipe".

[0028] The inner clamping ring directly contacts the pipeline and can be made of softer elastic materials such as rubber or silicone (for ease of production, it can also be integrally molded with plastic materials in other parts). This can avoid pipeline wear, deformation or breakage caused by direct compression from the metal clamp and is especially suitable for soft pipelines such as plastic and rubber.

[0029] The clamping ring 31 has two ends: a fixed end that is fixedly connected to the inner wall of the housing, and an extension section 311 that is the free end. This free end design allows the clamping ring a certain amount of elastic expansion and contraction space, enabling it to accommodate pipelines with slight diameter deviations (eliminating the need for frequent replacement of clamps of different specifications) and automatically adjust the clamping force when the pipeline expands or contracts due to temperature changes, preventing loosening or excessive compression. The outer clamping cavity provides fixed support, while the inner clamping ring acts like a "buffer," absorbing vibrations generated by equipment operation, reducing relative displacement between the pipeline and the clamp, and lowering the risk of loosening or fatigue damage due to long-term vibration.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car cable clamp, characterized in that: include: A plunger (1) has a side-through groove (11) in its middle part. A spring plate extending along the length of the plunger is provided in the groove (11). A flexible limiting disk (2) is connected to the lower end of the plunger (1). A retaining ring (3) is installed at the bottom of the flexible limiting disk (2). A receiving cavity is formed inside the housing of the retaining ring (3). A clamping ring (31) is provided in the receiving cavity. The clamping ring (31) has a C-shaped structure, extends obliquely upward from the bottom of the housing, and is spaced apart from the inner wall of the housing.

2. The automotive cable clamp according to claim 1, characterized in that: The spring includes two sets arranged symmetrically on the left and right, each set including a first spring (12) and a second spring (13), the length of the first spring (12) being greater than the length of the second spring (13).

3. The automotive cable clamp according to claim 2, characterized in that: The end thickness of the second spring piece (13) is reduced to form a stepped structure.

4. The automotive cable clamp according to claim 1, characterized in that: The end of the clamping ring (31) is provided with an extension (311) facing the inner wall of the housing.

5. The automotive cable clamp according to claim 1, characterized in that: The buckle (3) has an inwardly converging guide section (321) on one side of the shell opening. The guide section (321) is parallel to the outer wall of the other side of the shell opening and is opposite to the opening of the clamping ring (31).

6. The automotive cable clamp according to claim 1, characterized in that: The housing of the buckle (3) is square, and the internal cavity is circular.

7. The automotive cable clamp according to claim 1, characterized in that: The clamping ring (31) is made of rubber or silicone.

8. The automotive cable clamp according to claim 2, characterized in that: The first spring (12) and the second spring (13) are both connected to the upper groove wall of the empty groove (11).

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