Commercial vehicle rearview mirror

Abstract

The present invention belongs to the technical field of automobile rearview mirror accessories, and particularly relates to a commercial vehicle rearview mirror, wherein a rearview mirror support rod is connected to a support fixed to a commercial vehicle body through an end head, a cavity for allowing a wiring harness to pass through is provided in the end head, a vertically penetrating bolt hole is provided in the vertical portion, a ring-shaped or fan-shaped limiting boss is provided at the lower portion of the vertical portion, a ring-shaped spring pressure plate is provided at the bottom of the limiting boss, a raised spring base is provided above the spring pressure plate, a nut is provided at the bottom of the spring pressure plate, a spring is provided outside the limiting boss, and the lower end of the spring is provided on the spring base, and the bolt and the nut cooperate to limit the spring between the vertical portion and the spring pressure plate; the limiting boss is also provided with a limiting plate protruding outward, and a protrusion is provided at the bottom end of the limiting plate, and the protrusion at the bottom end of the limiting plate is inserted into the through hole of the spring pressure plate. The present invention provides a commercial vehicle rearview mirror that can completely fix the position of the end head and the spring in the support, the spring is evenly stressed, the wiring harness is not easy to break, and the connection structure is firm.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile rearview mirror accessories, and in particular relates to a commercial vehicle rearview mirror. Background Art

[0002] Common commercial vehicle rearview mirrors are connected to the support on the vehicle body through an end. One end of the end structure is connected to the support rod of the rearview mirror and the other end is connected to the support. The rearview mirror includes a rearview mirror with a steel pipe support rod structure. Usually, the end structure is assembled by heating or high-temperature boiling. The market has verified that the end structure is prone to the following problems: ① In order to reduce shock and buffer, a spring is set at the connection between the end and the support. For example, the Chinese utility model patent "CN201042942Y Vehicle Rearview Mirror Bracket Assembly" discloses the assembly method of the end spring. Due to the lack of a limiting structure, the consistency of the spring force is poor. Long-term unstable force is easy to cause spring deformation, and the end and the support are not stable. Problems such as loose connection will cause the rearview mirror to shake; ② The end and the support rod are assembled using a hot-installation process or forced assembly. Due to the irregular structure of the end, the end diameter deviation is large after the product is injected, and it cannot completely match the outer diameter of the support rod. At the same time, the surface of the support rod is sprayed with plastic, and the control accuracy of the plastic powder thickness is poor. The cumulative tolerance of the support rod and the end will cause the assembly to be loose. Loose coordination between the end and the support rod will cause the rearview mirror to shake; ③ The wiring harness of the rearview mirror has too large a range of movement in the end. When the rearview mirror is folded, the end will rotate relative to the support. At this time, a tangent surface will be formed at the connection between the end and the support. If the wiring harness is attached to the connection between the end and the support, it may be broken, causing the electronic components of the rearview mirror to short-circuit or open-circuit. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a commercial vehicle rearview mirror that can completely fix the position of the end head and the spring in the support, the spring is evenly stressed, the wire harness is not easy to break, and the connection structure is firm. The specific technical scheme adopted is: a commercial vehicle rearview mirror, the rearview mirror support rod is connected to the support fixed to the commercial vehicle body through the end head, the end head at least includes a transverse part and a vertical part, wherein the transverse part is connected to the rearview mirror support rod, and the vertical part is connected to the support, the end head is provided with a cavity for allowing the wire harness to pass through, the vertical part is provided with a vertically penetrating bolt hole, the lower part of the vertical part is provided with a ring-shaped or fan-shaped limiting boss, the bottom of the limiting boss is provided with a ring-shaped spring pressure plate, a raised spring base is provided above the spring pressure plate, and the bottom of the spring pressure plate is provided with a A nut, a spring is arranged outside the limiting boss and the lower end of the spring is arranged on the spring base, the bolt passes through the vertical part, the limiting boss and the spring pressure plate in sequence, and the bolt and the nut cooperate to limit the spring between the vertical part and the spring pressure plate; the outer diameter of the nut is larger than the inner diameter of the spring pressure plate, the outer diameter of the limiting boss is larger than the inner diameter of the spring pressure plate, and the outer diameter of the spring pressure plate is larger than the outer diameter of the spring; the limiting boss is also provided with a limiting plate protruding outward, the bottom end of the limiting plate is provided with a protrusion, the spring pressure plate is provided with a through hole, and the protrusion at the bottom end of the limiting plate is inserted into the through hole of the spring pressure plate.

[0004] Moreover, the end is in a "┐" shape, one end of the horizontal portion and one end of the vertical portion are connected as a whole, the other end of the horizontal portion is connected to the rearview mirror support rod, and the other end of the vertical portion is connected to the support.

[0005] Moreover, an inner groove matching with the bolt head is provided at the upper end of the vertical portion.

[0006] Moreover, the vertically penetrating bolt hole is integrated with the cavity in the end head or the bolt hole is actually a part of the cavity.

[0007] Moreover, the support and the vertical portion are threadedly connected, snap-fitted or heat-fitted, and the support is provided with a vertical through hole, and the limiting boss, spring pressure plate, spring and nut are all located in the through hole of the support.

[0008] Moreover, the outer diameter of the rearview mirror support rod is smaller than the inner diameter of the transverse portion, and the rearview mirror support rod is connected to the transverse portion by self-tapping screws.

[0009] Moreover, the vertical portion and the limiting boss are a substantially integrated structure.

[0010] Moreover, the spring base is composed of more than one group of inner arcs and outer arcs protruding from the spring pressure plate, and the spacing between the inner arcs and the outer arcs is the same as the spring wire diameter so that the spring can be embedded between the inner arcs and the outer arcs.

[0011] Moreover, a circle of side plates is arranged at the bottom of the spring pressure plate, and the longitudinal section of the spring pressure plate is in the shape of "П" or "P".

[0012] and a motor vehicle comprising the commercial vehicle rearview mirror.

[0013] Compared with the prior art, the beneficial effects of the present technical solution are as follows: 1. In order to limit the height movement position of the spring, a bolt is sequentially passed through the vertical portion, the limiting boss, and the spring pressure plate and matched with a nut to limit the spring between the vertical portion and the spring pressure plate. Since the outer diameter of the limiting boss is larger than the inner diameter of the spring pressure plate, when the nut screws the spring pressure plate to fit with the limiting boss, the moving height of the spring is limited between the vertical portion and the spring pressure plate; at the same time, since the outer diameter of the spring pressure plate is larger than the outer diameter of the spring, the force received will be evenly applied to the spring through the spring pressure plate to avoid one side or part of the spring being stressed; 2. In order to completely fix the position of the spring, the limiting boss is also provided with a limiting plate protruding outward, the bottom end of the limiting plate is provided with a protrusion, the spring pressure plate is provided with a through hole, the protrusion at the bottom end of the limiting plate is inserted into the through hole of the spring pressure plate, so that the spring pressure plate cannot rotate or slide horizontally relative to the limiting boss; the spring base is composed of one or more sets of inner arcs and outer arcs protruding from the spring pressure plate, and the inner The spacing between the arc and the outer arc is the same as the spring wire diameter so that the spring can be embedded between the inner arc and the outer arc, so that the spring cannot rotate or slide horizontally relative to the spring pressure plate; the two structures cooperate to completely fix the position of the spring; 3. The vertically penetrating bolt hole is connected to the cavity in the end head as a whole or the bolt hole is actually a part of the cavity, thereby limiting the moving position of the wiring harness. The reason is that in order to allow the spring to be sleeved outside the limiting boss, the outer diameter of the limiting boss must be smaller than the outer diameter of the vertical part of the workpiece. Since the wiring harness and the bolt must pass through the limiting boss together, the common range of movement of the wiring harness and the bolt is smaller than the inner diameter of the limiting boss, and the wiring harness cannot be attached to the connection between the end head and the support; 4. The rearview mirror support rod is connected to the transverse part of the workpiece by self-tapping screws, which is more secure than the hot-installation method; 5. A circle of side plates is provided at the bottom of the spring pressure plate, and the longitudinal section of the spring pressure plate is "П" or "П" shaped, which is convenient for distinguishing the direction of the spring pressure plate and for grasping the spring pressure plate during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of a commercial vehicle rearview mirror;

[0015] Figure 2 is a schematic diagram of the longitudinal section of the end;

[0016] Figure 3 The three-dimensional assembly diagram of the end;

[0017] Figure 4 is a schematic diagram of the structure of the terminal;

[0018] Figure 5 A perspective view of the wiring harness and the bolts in the end cap;

[0019] Figure 6 It is a schematic diagram of the spring base on the spring pressure plate;

[0020] Explanation of the reference numerals: 1- horizontal portion, 2- vertical portion, 3- cavity, 4- limiting boss, 5- spring pressure plate, 6- nut, 7- spring, 8- bolt, 9- wiring harness, 10- limiting plate, 11- protrusion, 12- through hole of spring pressure plate, 13- self-tapping screw, 14- rearview mirror support rod, 15- support, 16- inner groove, 17- end, 18- inner arc, 19- outer arc, 20- side panel. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments, but the content of the present invention is not limited to the following embodiments.

[0022] A commercial vehicle rearview mirror, such as Figure 1 As shown, the rearview mirror support rod 14 is connected to a support 15 fixed to the commercial vehicle body through an end 17. Figure 2 and Figure 3 As shown in the figure, it is in the shape of "┐", and at least includes a transverse portion 1 and a vertical portion 2. The left end of the transverse portion in the figure is connected to the rearview mirror support rod 14, the lower end of the vertical portion is connected to the support 15, and the right end of the transverse portion is connected to the upper end of the vertical portion as a whole. A cavity 3 for allowing the wiring harness 9 to pass is provided in the end head, a vertically through bolt hole is provided in the vertical portion, and an inner groove 16 matching the bolt head is provided at the upper end of the vertical portion to facilitate bolt positioning. The vertically through bolt hole is connected to the cavity in the end head as a whole or the bolt hole is substantially a part of the cavity. A ring-shaped or fan-shaped limiting boss 4 is provided at the lower part of the vertical portion. The vertical portion and the limiting boss are substantially an integrated structure, and the outer diameter of the limiting boss is smaller than the outer diameter of the vertical portion, such as Figure 5 As shown, since the wiring harness and bolts have to pass through the limiting boss together (the wiring harness and bolts that cannot be directly seen from the outside are indicated by dotted lines), the common movable range of the wiring harness and the bolts is smaller than the inner diameter of the limiting boss, and the wiring harness cannot be stuck to the connection between the end and the support, thereby preventing the wiring harness from being broken when the rearview mirror is folded, causing a short circuit or open circuit in the electronic components of the rearview mirror.

[0023] like Figure 4 As shown, a ring-shaped spring pressure plate 5 is provided at the bottom of the limiting boss, a nut 6 is provided at the bottom of the spring pressure plate, a spring 7 is provided outside the limiting boss and the lower end of the spring is provided on the spring base, a bolt 8 passes through the vertical portion, the limiting boss, the spring pressure plate in sequence and cooperates with the nut to limit the spring between the vertical portion and the spring pressure plate, the outer diameter of the nut is larger than the inner diameter of the spring pressure plate, the outer diameter of the limiting boss is larger than the inner diameter of the spring pressure plate, and the outer diameter of the spring pressure plate is larger than the outer diameter of the spring, when the nut screws the spring pressure plate to fit the limiting boss, the moving height of the spring is limited between the vertical portion and the spring pressure plate. At the same time, when the spring is required to provide a shock absorbing and buffering effect, the force received will be evenly applied to the spring through the spring pressure plate to avoid stress on one side or part of the spring.

[0024] The limiting boss is also provided with a limiting plate 10 protruding outward, a protrusion 11 is provided at the bottom end of the limiting plate, and a through hole is provided on the spring pressure plate. The protrusion at the bottom end of the limiting plate is inserted into the through hole 12 of the spring pressure plate, so that the spring pressure plate cannot rotate or slide horizontally relative to the limiting boss; Figure 6 As shown, the spring base is composed of one or more inner arcs and outer arcs protruding from the spring pressure plate. The spacing between the inner arcs and the outer arcs is the same as the spring wire diameter so that the spring can be embedded between the inner arc 18 and the outer arc 19, so that the spring cannot rotate or slide horizontally relative to the spring pressure plate. These two structures completely fix the position of the spring in the end and the support without rotation or sliding.

[0025] A circle of side plates 20 are arranged at the bottom of the spring pressure plate, and the longitudinal section of the spring pressure plate is in the shape of "П" or "P", which is convenient for distinguishing the direction of the spring pressure plate and for grasping the spring pressure plate during assembly.

[0026] Moreover, the support is fixed to the vehicle body, and the support and the vertical part are threadedly connected, snap-fitted or heat-fitted. The support is provided with a vertical through hole, and the limiting boss, spring pressure plate, spring and nut are all located in the through hole of the support.

[0027] Moreover, the outer diameter of the rearview mirror support rod is smaller than the inner diameter of the transverse portion, and the rearview mirror support rod is connected to the transverse portion by a self-tapping screw 13. This connection method is more secure than heat-fitting, and avoids the situation in which the rearview mirror shakes due to looseness of the end and the support rod.

Claims

1. A rearview mirror for a commercial vehicle, wherein the rearview mirror support rod is connected to a support fixed to the commercial vehicle body through an end, characterized in that: The end head at least comprises a transverse portion and a vertical portion, wherein the transverse portion is connected to the rearview mirror support rod, and the vertical portion is connected to the support. A cavity for allowing the wiring harness to pass through is provided in the end head, and a vertically penetrating bolt hole is provided in the vertical portion. A ring-shaped or fan-shaped limiting boss is provided at the lower part of the vertical portion, and a ring-shaped spring pressure plate is provided at the bottom of the limiting boss. A raised spring base is provided above the spring pressure plate, and a nut is provided at the bottom of the spring pressure plate. A spring is provided outside the limiting boss and the lower end of the spring is provided on the spring base. The bolt passes through the vertical portion, the limiting boss and the spring pressure plate in sequence, and the bolt and the nut cooperate to limit the spring between the vertical portion and the spring pressure plate; the nut The outer diameter is larger than the inner diameter of the spring pressure plate, the outer diameter of the limiting boss is larger than the inner diameter of the spring pressure plate, and the outer diameter of the spring pressure plate is larger than the outer diameter of the spring; the limiting boss is also provided with a limiting plate protruding outward, the bottom end of the limiting plate is provided with a protrusion, the spring pressure plate is provided with a through hole, and the protrusion at the bottom end of the limiting plate is inserted into the through hole of the spring pressure plate; the vertically penetrating bolt hole is connected to the cavity in the end head as one body or the bolt hole is actually a part of the cavity, the wiring harness and the bolt pass through the limiting boss together, the outer diameter of the limiting boss is smaller than the outer diameter of the vertical part, and the common activity range of the wiring harness and the bolt is smaller than the inner diameter of the limiting boss, so that the wiring harness does not stick to the connection between the end head and the support.

2. The commercial vehicle rearview mirror according to claim 1, characterized in that: The end is in a "┐" shape, one end of the horizontal portion and one end of the vertical portion are connected as a whole, the other end of the horizontal portion is connected to the rearview mirror support rod, and the other end of the vertical portion is connected to the support.

3. The commercial vehicle rearview mirror according to claim 2, characterized in that: An inner groove matching with the bolt head is arranged at the upper end of the vertical portion.

4. The commercial vehicle rearview mirror according to claim 1, characterized in that: The support and the vertical part are threadedly connected, snap-fitted or heat-fitted, and the support is provided with a vertical through hole. The limiting boss, spring pressure plate, spring and nut are all located in the through hole of the support.

5. The commercial vehicle rearview mirror according to claim 1, characterized in that: The outer diameter of the rearview mirror support rod is smaller than the inner diameter of the transverse portion, and the rearview mirror support rod is connected to the transverse portion by self-tapping screws.

6. The commercial vehicle rearview mirror according to claim 1, characterized in that: The vertical portion and the limiting boss are a substantially integrated structure.

7. The commercial vehicle rearview mirror according to claim 1, characterized in that: The spring base is composed of one or more inner arcs and outer arcs protruding from the spring pressure plate. The spacing between the inner arcs and the outer arcs is the same as the spring wire diameter so that the spring can be embedded between the inner arcs and the outer arcs.

8. The commercial vehicle rearview mirror according to claim 1, characterized in that: A circle of side plates is provided at the bottom of the spring pressure plate, and the longitudinal section of the spring pressure plate is "П"-shaped.

9. A motor vehicle comprising the commercial vehicle rearview mirror according to any one of claims 1 to 8.

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