Spring press fitting structure of rearview mirror

Abstract

The utility model relates to vehicle rear -view mirror structure technical field discloses a rear -view mirror spring press -fit structure, including wire harness mirror arm and with wire harness mirror arm cooperation's limit chuck, is equipped with the vertical setting guide boss on the lateral wall of wire harness mirror arm, is equipped with the vertical through slot of slide cooperation with guide boss on limit chuck, is equipped with the horizontal slot of along wire harness mirror arm circumference and passes through guide boss on wire harness mirror arm, and the width of horizontal slot is greater than the thickness of limit chuck, and the top surface of limit chuck is equipped with the clamping joint portion of clamping joint cooperation with guide boss, and clamping joint portion and vertical through slot along the circumferential arrangement of limit chuck are set up, and the outer wall of wire harness mirror arm is fixedly connected with the limit baffle ring, and the top surface of limit baffle ring is flush with the bottom wall of horizontal slot.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle rearview mirror structure, specifically to a rearview mirror spring press-fit structure. Background Technology

[0002] In the rearview mirror structure of trucks, commercial vehicles, and other vehicles, a spring structure is used to pre-compress and tighten the internal connecting components of the rearview mirror to ensure its stability and prevent abnormal noises during use. This keeps the internal structure of the rearview mirror in a tightly connected state, thus ensuring structural stability and preventing abnormal noises. Currently, the spring is sleeved on the mirror arm base, and the wiring harness mirror arm is sleeved on the outside of the mirror arm base, with the top of the wiring harness mirror arm protruding from the top of the mirror arm base. Then, a limiting chuck is installed on the top of the wiring harness mirror arm, using the limiting chuck to pre-assemble the spring by compression.

[0003] To ensure the overall structural stability, the connection between the limiting chuck and the wiring harness arm must be stable. However, the limiting chuck is constantly subjected to the reverse force of the spring, and the relative rotation of components during rearview mirror use further complicates the stress on it. Current technology typically secures the limiting chuck to the wiring harness arm using screws or other fixing structures. After a period of use, these screws can loosen, causing the spring to fail. Furthermore, the spring itself may fail after prolonged use, requiring replacement. Using existing screw-based fixing methods makes disassembling and assembling the limiting chuck inconvenient. Therefore, it is necessary to improve the spring pressing structure in existing technology to enhance the structural stability of the rearview mirror during use and facilitate maintenance and replacement. Utility Model Content

[0004] The present invention aims to provide a rearview mirror spring press-fit structure to solve the problems of poor stability and inconvenience in maintenance and disassembly of the existing rearview mirror spring press-fit structure.

[0005] To solve the above problems, the present invention adopts the following technical solution: a rearview mirror spring press-fit structure, including a wiring harness mirror arm and a limiting chuck that cooperates with the wiring harness mirror arm. The side wall of the wiring harness mirror arm is provided with a vertically arranged guide protrusion, and the limiting chuck is provided with a vertical through groove that slides with the guide protrusion. The wiring harness mirror arm is provided with a transverse groove that runs through the guide protrusion along the circumference of the wiring harness mirror arm. The width of the transverse groove is greater than the thickness of the limiting chuck. The top surface of the limiting chuck is provided with a snap-fit ​​part that snaps with the guide protrusion. The snap-fit ​​part and the vertical through groove are arranged along the circumference of the limiting chuck. A limiting retaining ring is fixedly connected to the outer wall of the wiring harness mirror arm. The top surface of the limiting retaining ring is flush with the bottom wall of the transverse groove.

[0006] The principle of this solution is as follows: When installing the limiting chuck, since there is a guide protrusion on the side wall of the wire harness lens arm, and a vertical through groove on the limiting chuck that slides with the guide protrusion, before the limiting chuck contacts the spring, the guide protrusion first engages with the vertical through groove, so that the limiting chuck slides stably under the guidance of the guide protrusion and approaches and squeezes the spring; when the limiting chuck rotates to be aligned with the horizontal groove on the wire harness lens arm, the sliding of the limiting chuck relative to the axis of the wire harness lens arm stops. At this time, the limiting chuck is rotated so that it rotates within the horizontal groove. Since the locking part and the vertical through groove are arranged along the circumference of the limiting chuck, that is, the locking part and the vertical through groove are located at different positions on the limiting chuck, when the limiting chuck is rotated, it can be rotated from the state where the guide protrusion and the vertical through groove are aligned to the state where the guide protrusion and the locking part are aligned.

[0007] When the limiting chuck rotates until the engaging part is directly opposite the guide protrusion, the external force on the limiting chuck is gradually released. Since the spring has been compressed and stored at this time, as the external force on the limiting chuck gradually decreases, under the action of the spring force, the limiting chuck moves away from the spring along the axis of the wire harness arm. Since the width of the transverse groove is greater than the thickness of the limiting chuck, the engaging part on the top surface of the limiting chuck has enough distance to automatically engage with the guide protrusion when the limiting chuck moves away from the spring. After engagement, the limiting chuck is limited by the engaging part and cannot rotate circumferentially relative to the wire harness arm. However, it is always automatically subjected to the spring force along the axis of the wire harness arm. Under the action of this spring force, the guide protrusion always remains engaged with the engaging part, ensuring the stability of the connection between the limiting chuck and the wire harness arm.

[0008] In addition, in this design, a limiting ring is fixed on the outer wall of the wire-beam lens arm. The top surface of the limiting ring is flush with the bottom wall of the transverse groove. When the limiting chuck is pushed to move along the axial direction of the wire-beam lens arm, the top surface of the limiting ring contacts the bottom surface of the limiting chuck, indicating that the limiting chuck and the transverse groove are aligned. At this time, the limiting chuck can be rotated to make the guide protrusion align with the blind hole groove. Therefore, the limiting ring plays a positioning role for the limiting chuck. At the same time, when the limiting chuck rotates relative to the wire-beam lens arm, the limiting ring provides auxiliary support for the limiting chuck, enabling the limiting chuck to rotate more smoothly, improving the stability and accuracy of the limiting chuck during rotation, and improving the efficiency of the limiting chuck installation and fixation.

[0009] The beneficial effects of this plan are:

[0010] 1. Easier installation and removal of the limiting chuck: Compared to existing technologies that require screws or other fixing structures to secure the limiting chuck to the lens arm, which is laborious and inconvenient due to the need for external force to maintain the compression of the spring during screw installation, this application utilizes a transverse groove. During installation, the limiting chuck is first pushed along the lens arm direction. Once aligned with the transverse groove, it is simply rotated until the guide protrusion aligns with the locking part, gradually releasing the force applied to the chuck. This simplifies the installation process, allowing for smooth and quick installation. Disassembly is achieved by reversing the installation process. Furthermore, the inclusion of a limiting retaining ring provides positioning and rotational support, resulting in a smoother and more efficient installation process.

[0011] 2. The connection of the limiting chuck is more stable: Compared with the existing technology that uses screws to fix the limiting chuck, the screws may loosen during use and cause the fixation to fail. In this application, the locking part and the guide protrusion are locked together, and the spring force on the limiting chuck is used to make the locking part automatically engage with the guide protrusion and keep the limiting chuck in a stable and fixed state during use.

[0012] 3. Simple structure: The guide protrusion in this application guides the limit chuck during installation. After the limit chuck is installed, the guide protrusion engages with the locking part to prevent the limit chuck from rotating randomly relative to the wire harness arm during the use of the rearview mirror, thus preventing the limit chuck from falling off the wire harness arm. The guide protrusion plays different roles at different stages, and the structure is simple yet functional.

[0013] 4. The wire harness arm has high structural strength: In this application, a guide protrusion is fixed on the outer wall of the wire harness arm. The guide protrusion can not only guide and lock the limiting chuck, but also strengthen the structure of the wire harness arm, making the entire rearview mirror structure more stable.

[0014] Preferably, as an improvement, the locking portion includes a blind hole groove formed on the top surface of the limiting chuck.

[0015] In this design, the snap-fit ​​part is a blind hole groove structure, which is simple in structure and can be easily snapped into the guide protrusion structure. It is easy to process and install.

[0016] Preferably, as an improvement, the number of guide protrusions is multiple, and the multiple guide protrusions are evenly arranged circumferentially along the outer wall of the wire harness lens arm, and the number of blind hole slots is equal to the number of guide protrusions.

[0017] In this design, there are multiple guide protrusions to improve the stability of the limiting chuck when it is installed and moved along the axis of the wire harness lens arm. The number of blind hole slots is equal to the number of guide protrusions, which not only facilitates the engagement and cooperation of all blind hole slots with the guide protrusions, but also improves the stability of the limiting chuck after it is installed in place.

[0018] Preferably, as an improvement, the thickness of the limiting chuck is greater than or equal to 4 mm, and the depth of the blind hole groove is greater than or equal to 1 mm.

[0019] In this design, the thickness of the limiting chuck is greater than or equal to 4mm, giving it high strength and enabling stable pressing of the spring. In addition, the depth of the blind hole groove is greater than or equal to 1mm, preventing the guide protrusion from easily detaching from the blind hole groove during use and effectively ensuring the stability of the limiting chuck after installation.

[0020] Preferably, as an improvement, the top of the guide protrusion is provided with an end guide slope that cooperates with the limiting chuck.

[0021] In this solution, an end guide slope is set at the top of the guide protrusion. The end guide slope provides guidance for the starting engagement of the limiting chuck with the wire harness lens arm, so that the vertical through groove on the limiting chuck can engage with the guide protrusion more quickly and accurately, thereby improving the efficiency of the limiting chuck installation.

[0022] Preferably, as an improvement, the bottom of the limiting chuck is provided with a bottom guide slope that cooperates with the guide protrusion.

[0023] In this design, a bottom guide slope that engages with the guide protrusion is provided at the bottom of the limiting chuck, further improving the efficiency of the installation and engagement between the limiting chuck and the wire harness arm.

[0024] Preferably, as an improvement, the top surface of the limiting protrusion is fixedly connected to an upwardly protruding protective collar, and when the limiting chuck and the locking part are engaged, the top end of the guide protrusion is located inside the protective collar.

[0025] In this solution, a protective collar is used to protect the guide protrusion, thereby improving structural stability. The protective collar also enhances the structural strength of the limit chuck, enabling it to provide a more stable pressing effect on the spring.

[0026] Preferably, as an improvement, the limiting chuck is provided with a plug-in portion.

[0027] In this solution, a connector is provided on the limiting chuck. When the limiting chuck is pushed along the axial direction of the wire harness lens arm to be aligned with the transverse groove, the connector tool in the prior art can be inserted into the connector. Then, the connector tool is used to drive the limiting chuck to rotate circumferentially along the wire harness lens arm, making the installation of the limiting chuck more efficient and labor-saving.

[0028] Preferably, as an improvement, the insertion part includes a slot formed on the limiting chuck, the slot is vertically inserted through the limiting chuck, and the number of slots is multiple and the multiple slots are evenly arranged along the circumference of the limiting chuck.

[0029] In this solution, the insertion part is a slot, which has a simple structure and can be easily used with existing insertion tools to quickly install and fix the limit chuck. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the rearview mirror in Embodiment 1 of this utility model.

[0031] Figure 2 for Figure 1 Sectional view along the middle AA.

[0032] Figure 3 This is a schematic diagram showing the connection between the wire harness arm, spring, and limiting chuck in Embodiment 1 of this utility model.

[0033] Figure 4 This is a schematic diagram of the limiting chuck in Embodiment 1 of this utility model.

[0034] Figure 5 This is a schematic diagram of the limiting chuck from an upward angle in Embodiment 1 of this utility model.

[0035] Figure 6 This is a schematic diagram of the wire-beam lens arm in Embodiment 1 of this utility model.

[0036] Figure 7 This is a schematic diagram of the limiting chuck in Embodiment 2 of this utility model. Detailed Implementation

[0037] The following detailed description illustrates the specific implementation method:

[0038] The reference numerals in the accompanying drawings include: 1. Arm base, 2. Cable harness arm, 201. Guide protrusion, 2011. Horizontal guide slope, 202. Spring, 3. Limiting chuck, 4. Vertical through groove, 401. Blind hole groove, 402. Slot, 403. Bottom guide slope, 404. Protective collar, 5. Limiting retaining ring, 6.

[0039] Example 1

[0040] This embodiment is as shown in the attached figure. Figure 1 and Figure 2 As shown: A rearview mirror spring-loaded structure includes a wiring harness mirror arm 2 and a limiting chuck 4 that cooperates with the wiring harness mirror arm 2. In the prior art, the mirror arm base 1 is sleeved on the outside of the wiring harness mirror arm 2, and the spring 3 is sleeved on the outside of the mirror arm base 1, combined with... Figure 3 and Figure 4The outer wall of the wire harness lens arm 2 is integrally formed with vertically arranged guide protrusions 201. There are multiple guide protrusions 201, and the multiple guide protrusions 201 are evenly arranged along the circumference of the wire harness lens arm 2. The center of the limiting chuck 4 is opened with a central through hole that cooperates with the wire harness lens arm 2, and the limiting chuck 4 is opened with a vertical through groove 401 that slides with the guide protrusions 201. The vertical through groove 401 is connected to the central through hole. When the guide protrusions 201 and the vertical through groove 401 are aligned, the limiting chuck 4 can slide along the axial direction of the wire harness lens arm 2.

[0041] Combination Figure 2 and Figure 6 In this embodiment, a transverse groove 202 is provided on the wire harness lens arm 2 along the circumference of the wire harness lens arm 2. The width of the transverse groove 202 is greater than the thickness of the limiting chuck 4. When the limiting chuck 4 is directly opposite the transverse groove 202, the limiting chuck 4 can rotate horizontally along the wire harness lens arm 2. In addition, combined with Figure 4 and Figure 5 In this embodiment, a locking part is provided on the top surface of the limiting chuck 4 to engage with the guide protrusion 201. The number of locking parts is equal to the number of guide protrusions 201. The locking parts and the vertical through groove 401 are arranged along the circumference of the limiting chuck 4, so that the locking parts and the vertical through groove 401 are positioned to avoid each other. Specifically, the locking part is a blind hole groove 402 opened on the top of the limiting chuck 4. The thickness of the limiting chuck 4 is greater than or equal to 4mm, preferably 5mm, and the depth of the blind hole groove 402 is greater than or equal to 1mm, preferably 1.5mm.

[0042] Combination Figure 2 , Figure 5 and Figure 6 To facilitate precise sliding engagement between the limiting chuck 4 and the guide protrusion 201, this embodiment features an end guide slope 2011 at the top of the guide protrusion 201 that engages with the limiting chuck 4, and a bottom guide slope 404 at the bottom of the limiting chuck 4 that engages with the guide protrusion 201. The top and bottom guide slopes 404 ensure more precise and efficient mating between the limiting chuck 4 and the wire harness arm 2. Furthermore, this embodiment includes an integrally formed protective collar 5 on the top surface of the limiting chuck 4. When the blind slot 402 engages with the guide protrusion 201, the protective collar 5 protects the guide protrusion 201 at the top of the wire harness arm 2, reducing the risk of damage during use.

[0043] Combination Figure 2 and Figure 6In this embodiment, a limiting ring 6 is integrally formed and fixedly connected to the outer wall of the wire harness lens arm 2. The top surface of the limiting ring 6 is flush with the bottom wall of the transverse groove 202. When the limiting chuck 4 is pushed by external force to compress the spring 3 along the axial direction of the wire harness lens arm 2, the limiting ring 6 can block and position the limiting chuck 4. When the bottom surface of the limiting chuck 4 contacts the top surface of the limiting ring 6, it indicates that the limiting chuck 4 is in a state of being directly aligned with the transverse groove 202. At this time, it is only necessary to rotate the limiting chuck 4 until the blind hole groove 402 is aligned with the guide protrusion 201 to complete the subsequent installation and fixing of the limiting chuck 4, which effectively improves the accuracy and installation efficiency of the limiting chuck 4 during installation.

[0044] The specific implementation process is as follows:

[0045] When the limiting chuck 4 needs to be installed, first place the limiting chuck 4 above the wire harness lens arm 2, and then push the limiting chuck 4 gradually closer to the wire harness lens arm 2. Relying on the guiding effect of the end guide slope 2011 and the bottom guide slope 404, the limiting chuck 4 will automatically rotate until the vertical through groove 401 is directly opposite the guide protrusion 201. Then continue to push the limiting chuck 4 to move along the axis of the wire harness lens arm 2. The guide protrusion 201 guides the movement of the limiting chuck 4.

[0046] Combination Figure 1 , Figure 2 and Figure 3 When the limiting chuck 4 moves along the axis of the wire harness lens arm 2, the bottom surface of the limiting chuck 4 contacts the spring 3 and gradually squeezes the spring 3. When the limiting chuck 4 moves to be directly opposite the transverse groove 202, the pushing of the limiting chuck 4 stops and the external force is used to keep the position of the limiting chuck 4 unchanged in the axis of the wire harness lens arm 2. Then the limiting chuck 4 is rotated so that the blind hole groove 402 on the limiting chuck 4 rotates to be vertically directly opposite the guide protrusion 201. Then the force on the limiting chuck 4 along the axis of the wire harness lens arm 2 is gradually released. Under the action of the spring force of the spring 3, the limiting chuck 4 is automatically pushed away from the spring 3 and the blind hole groove 402 is engaged with the guide protrusion 201, finally realizing the installation and fixation of the limiting chuck 4.

[0047] Example 2

[0048] The difference between Example 2 and Example 1 is as follows: Figure 7As shown, in this embodiment, the limiting chuck 4 is provided with an insertion part, which is a slot 403 vertically penetrating the limiting chuck 4. There are multiple slots 403, and the multiple slots 403 are evenly arranged along the circumference of the limiting chuck 4. In this embodiment, by setting the slots 403, when the limiting chuck 4 is pushed along the wire harness lens arm 2 to be aligned with the transverse groove 202, the insertion tool (e.g., a rotating arm with a pin) is used to insert into the slot 403. Then, the insertion tool is manually or mechanically driven to rotate, which can efficiently and labor-savingly drive the limiting chuck 4 to rotate, and quickly complete the installation of the limiting chuck 4.

[0049] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rearview mirror spring-loaded structure, comprising a wiring harness mirror arm and a limiting chuck that cooperates with the wiring harness mirror arm, characterized in that: The side wall of the wire harness lens arm is provided with a vertically arranged guide protrusion, and the limiting chuck is provided with a vertical through groove that slides with the guide protrusion; the wire harness lens arm is provided with a transverse groove that runs through the guide protrusion along the circumference of the wire harness lens arm, the width of the transverse groove being greater than the thickness of the limiting chuck, the top surface of the limiting chuck being provided with a snap-fit ​​part that snaps with the guide protrusion, the snap-fit ​​part and the vertical through groove being arranged along the circumference of the limiting chuck, and a limiting retaining ring is fixedly connected to the outer wall of the wire harness lens arm, the top surface of the limiting retaining ring being flush with the bottom wall of the transverse groove.

2. The rearview mirror spring press-fit structure according to claim 1, characterized in that: The locking part includes a blind hole groove formed on the top surface of the limiting chuck.

3. The rearview mirror spring press-fit structure according to claim 2, characterized in that: The number of guide protrusions is multiple, and the multiple guide protrusions are evenly arranged along the outer circumference of the wire harness lens arm. The number of blind hole slots is equal to the number of guide protrusions.

4. The rearview mirror spring press-fit structure according to claim 3, characterized in that: The thickness of the limiting chuck is greater than or equal to 4mm, and the depth of the blind hole groove is greater than or equal to 1mm.

5. A rearview mirror spring press-fit structure according to claim 2, characterized in that: The top of the guide protrusion is provided with an end guide slope that cooperates with the limiting chuck.

6. The rearview mirror spring press-fit structure according to claim 5, characterized in that: The bottom of the limiting chuck is provided with a bottom guide slope that cooperates with the guide protrusion.

7. A rearview mirror spring press-fit structure according to claim 2, characterized in that: The top surface of the limiting chuck is fixedly connected with an upwardly protruding protective collar. When the limiting chuck is engaged with the locking part, the top of the guide protrusion is located inside the protective collar.

8. A rearview mirror spring press-fit structure according to any one of claims 2-7, characterized in that: The limiting chuck is provided with a plug-in part.

9. A rearview mirror spring press-fit structure according to claim 8, characterized in that: The insertion part includes a slot formed on the limiting chuck, the slot is set vertically through the limiting chuck, and there are multiple slots, which are evenly arranged along the circumference of the limiting chuck.

Images