A folding bulldozer rearview mirror support

Abstract

The utility model relates to bulldozer accessory technical field, and disclose a folding bulldozer rear -view mirror support, include: mounting seat and swing arm, limiting structure, limiting structure includes thrust block, and the board of resistance and support seat, thrust hole and thrust convex body, support seat is fixedly installed with mounting seat, and the board of resistance and support seat elasticity are connected, and thrust block is fixedly connected with the pivot, and the end fixed installation of thrust block several thrust convex body, and the board of resistance and end establishment several thrust hole, and thrust convex body is inserted into thrust hole, and further pivot rotation process is with the damping, through thrust convex body is inserted into thrust hole to the pivot is positioned, the angle of swing arm is locked fixedly conveniently, reduces swing arm adjustment angle deviation's probability after, on the basis of guaranteeing the limiting effect of swing arm, without losing the convenience of one-handed adjustment of big arm, through swing arm drive pivot rotation realizes the folding of swing arm and is stored, reduces the space occupation of cab under the condition without using rear -view mirror, reduces the reflection.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer accessories technology, and in particular to a folding bulldozer rearview mirror bracket. Background Technology

[0002] The rearview mirror is one of the accessories installed in the bulldozer cab, mainly used to observe the situation behind.

[0003] A search revealed a rearview mirror bracket (publication number: CN219927568U) which includes a bracket body and a bracket rod. One end of the bracket body is provided with a connecting groove, and one end of the bracket rod is provided with a connecting section. The connecting section is inserted into the connecting groove. One side of the bracket body is provided with a fixing connecting groove that passes through the connecting groove. The surface of the connecting section is provided with a connecting through hole. The connecting through hole and the fixing connecting groove are arranged opposite to each other and are connected and fixed by fasteners.

[0004] In the existing technology, a bracket for mounting a rearview mirror is formed by a detachable rod. During driving, the rearview mirror can observe the situation behind, but it also increases the reflection on the driver, which affects driving. When bulldozing on a long straight line, the situation of vehicles following behind will cause the rearview mirror to reflect light towards the driver, which will interfere with the view of the front. Therefore, in certain situations, it is necessary to fold the bracket so that the rearview mirror fits against the roof of the cab to reduce the reflection of the lights of vehicles behind.

[0005] Therefore, we propose a folding bulldozer rearview mirror bracket. Utility Model Content

[0006] The present invention mainly solves the technical problem that the rearview mirror bracket cannot be folded, and provides a foldable bulldozer rearview mirror bracket.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a folding bulldozer rearview mirror bracket, comprising:

[0008] A mounting base and a swing arm, wherein a rotating shaft is rotatably mounted on the mounting base, and the swing arm is fixedly connected to the rotating shaft;

[0009] A limiting structure is provided on one side of the mounting base for locking the rotating shaft. The limiting structure includes a thrust block, a contact plate, a support base, thrust holes, and thrust protrusions. The support base is fixedly installed with the mounting base, the contact plate is elastically connected with the support base, the thrust block is fixedly connected with the rotating shaft, and several thrust protrusions are fixedly installed at the end of the thrust block. Several thrust holes are opened at the end of the contact plate, and the thrust protrusions can be inserted into the thrust holes.

[0010] In a preferred embodiment of this utility model, the rotating shaft passes through the swing arm and the mounting base, with both ends of the rotating shaft extending to both sides of the mounting base, and the rotating shaft is stopped and limited by a snap ring.

[0011] In a preferred embodiment of this utility model, the thrust block is a circular plate, and an integrally formed rectangular block is provided at the end of the thrust block. A rectangular groove is provided at the end of the rotating shaft, and the rectangular block is inserted into the rectangular groove and locked and fixed to the rotating shaft with bolts.

[0012] In a preferred embodiment of this utility model, the contact plate is annular, and the ends of the contact plate are arranged in a circular array with several identical thrust holes.

[0013] In a preferred embodiment of this utility model, the thrust hole is a hemispherical groove, the thrust protrusion is a hemispherical protrusion, and the distribution spacing of the thrust protrusion is equal to the distribution spacing of the thrust hole.

[0014] In a preferred embodiment of this utility model, the support base is a ring, and an annular retaining edge is provided at the end of the support base near the mounting base. The annular retaining edge is locked to the mounting base by screws, and the rotating shaft passes through the central hole of the support base.

[0015] In a preferred embodiment of this utility model, the limiting structure further includes a spring and a guide rod. Several springs are fixedly installed at the end of the contact plate near the support base. The guide rod is fixedly connected to the contact plate. The support base has a sliding hole adapted to the guide rod. The guide rod is clearance-fitted to the sliding hole and is slidably disposed in the sliding hole.

[0016] This utility model provides a folding bulldozer rearview mirror bracket. It has the following advantages:

[0017] 1. This folding bulldozer rearview mirror bracket, by rotating the swing arm, drives the rotating shaft to rotate, which in turn drives the thrust block to rotate. The thrust protrusion pushes the contact plate, causing the contact plate to approach the support seat, thereby allowing the thrust protrusion to disengage from the thrust hole. As the rotating shaft rotates, the thrust protrusion gradually moves and aligns with another thrust hole, engaging with it. Thus, the rotation of the rotating shaft is damped. By engaging the thrust protrusion with the thrust hole, the rotating shaft is limited, facilitating the locking and fixing of the swing arm angle, reducing the probability of angle deviation after swing arm adjustment. While ensuring the limiting effect of the swing arm, it does not lose the convenience of one-handed adjustment of the boom. The swing arm drives the rotating shaft to rotate, achieving folding and storage of the swing arm. When the rearview mirror is not in use, it reduces the space occupied in the cab and reduces glare.

[0018] 2. This folding bulldozer rearview mirror bracket uses a spring made of spring steel to provide thrust, causing the contact plate to move away from the support seat. The contact plate drives the guide rod to slide within the sliding hole, allowing the contact plate to approach the thrust block and apply radial squeezing force to the thrust block. This ensures the damping effect of the thrust protrusion engaging with the thrust hole. Furthermore, to achieve complete contact between the contact plate and the thrust block, a rubber block (not shown in the figure) can be used. Inserting the rubber block between the contact plate and the support seat prevents the contact plate from moving away from the thrust block. At this time, the thrust block remains locked and cannot rotate, resulting in better fixation of the swing arm and the mirror at its end, thus ensuring flexibility in use. Attached Figure Description

[0019] Figure 1 This is a perspective view of the entire utility model;

[0020] Figure 2 This is an assembly drawing of the swing arm and mounting base of this utility model;

[0021] Figure 3 This is a perspective view of the limiting structure of this utility model;

[0022] Figure 4 This is a partial cross-sectional view of the contact plate of this utility model;

[0023] Figure 5 This is a perspective view of the thrust block of this utility model.

[0024] Legend: 10. Mounting base; 11. Swing arm; 12. Rotating shaft; 20. Thrust block; 21. Contact plate; 22. Support base; 23. Thrust hole; 24. Thrust protrusion; 25. Spring; 26. Guide rod. Detailed Implementation

[0025] A folding bulldozer rearview mirror bracket, such as Figure 1 and Figure 2 As shown, it includes:

[0026] Mounting base 10 and swing arm 11. Mounting base 10 is rotatably mounted with a rotating shaft 12. The swing arm 11 is fixedly connected to the rotating shaft 12. The rotating shaft 12 passes through the swing arm 11 and the mounting base 10. Both ends of the rotating shaft 12 extend to both sides of the mounting base 10. The rotating shaft 12 is limited by a retaining spring. Specifically, the rotating shaft 12 has two limiting grooves for engaging the retaining springs. The two retaining springs are respectively engaged in the corresponding limiting grooves and abut against both sides of the mounting base 10. The swing arm 11 drives the rotating shaft 12 to rotate, thereby folding and storing the swing arm 11. The rearview mirror frame and lens are installed at the end of the swing arm 11. The angle can be adjusted or folded and stored by swinging the swing arm 11.

[0027] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a limiting structure is provided on one side of the mounting base 10 to lock the rotating shaft 12. The limiting structure includes a thrust block 20, a contact plate 21, a support base 22, thrust holes 23, and thrust protrusions 24. The support base 22 is fixedly installed on the mounting base 10, the contact plate 21 is elastically connected to the support base 22, the thrust block 20 is fixedly connected to the rotating shaft 12, and several thrust protrusions 24 are fixedly installed at the end of the thrust block 20. Several thrust holes 23 are opened at the end of the contact plate 21, and the thrust protrusions 24 can be inserted into the thrust holes 23. The thrust block 20 is a circular plate, and the end of the thrust block 20 is provided with an integrally formed rectangular... The rectangular block has a rectangular groove at the end of the rotating shaft 12. The rectangular block is inserted into the rectangular groove and locked to the rotating shaft 12 with bolts. The contact plate 21 is annular. Several identical thrust holes 23 are distributed in an annular array at the end of the contact plate 21. The thrust holes 23 are hemispherical grooves. The thrust protrusions 24 are hemispherical protrusions. The distribution spacing of the thrust protrusions 24 is equal to the distribution spacing of the thrust holes 23. The support seat 22 is annular. The end of the support seat 22 near the mounting seat 10 is provided with an annular stop. The annular stop is locked to the mounting seat 10 with screws. The rotating shaft 12 passes through the central hole of the support seat 22.

[0028] In this scheme, by rotating the swing arm 11, the swing arm 11 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the thrust block 20 to rotate. The thrust protrusion 24 pushes the contact plate 21 so that the contact plate 21 is close to the support seat 22, and thus the thrust protrusion 24 can disengage from the thrust hole 23. As the rotating shaft 12 rotates, the thrust protrusion 24 gradually moves and aligns with another thrust hole 23. The thrust protrusion 24 is engaged in the thrust hole 23, so the rotating shaft 12 is damped during rotation. The thrust protrusion 24 is engaged in the thrust hole 23 to limit the rotation of the rotating shaft 12, which makes it convenient to lock and fix the angle of the swing arm 11 and reduce the probability of the angle of the swing arm 11 shifting after adjustment.

[0029] like Figure 4 As shown, the limiting structure also includes springs 25 and guide rods 26. Several springs 25 are fixedly installed at the end of the contact plate 21 near the support base 22. The guide rods 26 are fixedly connected to the contact plate 21. The support base 22 has a sliding hole adapted to the guide rods 26. The guide rods 26 are clearance-fitted with the sliding holes and are slidably disposed in the sliding holes.

[0030] To achieve the elastic connection of the contact plate 21, a spring sheet 25 made of spring steel provides a thrust to move the contact plate 21 away from the support seat 22. The contact plate 21 drives the guide rod 26 to slide in the sliding hole, so that the contact plate 21 can approach the thrust block 20 and apply a radial squeezing force to the thrust block 20, ensuring the damping effect of the thrust protrusion 24 being inserted into the thrust hole 23. Secondly, in order to achieve complete contact between the contact plate 21 and the thrust block 20, a rubber block can be used. The rubber block is not shown in the figure. The rubber block is inserted between the contact plate 21 and the support seat 22 to prevent the contact plate 21 from moving away from the thrust block 20. At this time, the thrust block 20 remains locked and cannot rotate, which provides a better fixing effect for the swing arm 11 and the lens at its end, and ensures the flexibility of use.

[0031] The working principle of this utility model is as follows: By rotating the swing arm 11, the swing arm 11 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the thrust block 20 to rotate. The thrust protrusion 24 pushes the contact plate 21, causing the contact plate 21 to approach the support seat 22. As a result, the thrust protrusion 24 disengages from the thrust hole 23. As the rotating shaft 12 rotates, the thrust protrusion 24 gradually moves and aligns with another thrust hole 23. The thrust protrusion 24 then engages in the thrust hole 23. Thus, the rotation of the rotating shaft 12 is damped. By engaging the thrust protrusion 24 in the thrust hole 23, the rotating shaft 12 is limited, thereby achieving the angular control of the swing arm 11. The contact plate 21 is locked and fixed by means of a spring steel spring 25, which provides a pushing force to move the contact plate 21 away from the support seat 22. The contact plate 21 drives the guide rod 26 to slide in the sliding hole, so that the contact plate 21 can approach the thrust block 20 and apply a radial pushing force to the thrust block 20, ensuring the damping effect of the thrust protrusion 24 being inserted into the thrust hole 23. In order to achieve complete contact between the contact plate 21 and the thrust block 20, a rubber block can be used. The rubber block is inserted between the contact plate 21 and the support seat 22 to prevent the contact plate 21 from moving away from the thrust block 20. At this time, the thrust block 20 remains locked and cannot rotate.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding bulldozer rearview mirror bracket, characterized in that, include: The mounting base (10) and the swing arm (11) are provided. The mounting base (10) is rotatably mounted with a rotating shaft (12), and the swing arm (11) is fixedly connected to the rotating shaft (12). A limiting structure is provided on one side of the mounting base (10) for locking the rotating shaft (12). The limiting structure includes a thrust block (20), a contact plate (21), a support base (22), a thrust hole (23), and a thrust protrusion (24). The support base (22) is fixedly installed with the mounting base (10). The contact plate (21) is elastically connected with the support base (22). The thrust block (20) is fixedly connected with the rotating shaft (12). Several thrust protrusions (24) are fixedly installed at the end of the thrust block (20). Several thrust holes (23) are opened at the end of the contact plate (21). The thrust protrusions (24) can be inserted into the thrust holes (23).

2. The folding bulldozer rearview mirror bracket according to claim 1, characterized in that: The rotating shaft (12) passes through the swing arm (11) and the mounting base (10). Both ends of the rotating shaft (12) extend to the two sides of the mounting base (10), and the rotating shaft (12) is stopped by a snap ring.

3. The folding bulldozer rearview mirror bracket according to claim 1, characterized in that: The thrust block (20) is a circular plate. The end of the thrust block (20) is provided with an integrally formed rectangular block. The end of the rotating shaft (12) is provided with a rectangular groove. The rectangular block is inserted into the rectangular groove and locked and fixed to the rotating shaft (12) by bolts.

4. The folding bulldozer rearview mirror bracket according to claim 1, characterized in that: The contact plate (21) is annular, and the ends of the contact plate (21) are arranged in a ring array with several identical thrust holes (23).

5. The folding bulldozer rearview mirror bracket according to claim 1, characterized in that: The thrust hole (23) is a hemispherical groove, and the thrust protrusion (24) is a hemispherical protrusion. The distribution spacing of the thrust protrusion (24) is equal to the distribution spacing of the thrust hole (23).

6. The folding bulldozer rearview mirror bracket according to claim 1, characterized in that: The support base (22) is a ring. The end of the support base (22) near the mounting base (10) is provided with an annular stop. The annular stop is locked to the mounting base (10) by screws. The rotating shaft (12) passes through the center hole of the support base (22).

7. The folding bulldozer rearview mirror bracket according to claim 1, characterized in that: The limiting structure also includes springs (25) and guide rods (26). Several springs (25) are fixedly installed on the end of the contact plate (21) near the support base (22). The guide rods (26) are fixedly connected to the contact plate (21). The support base (22) has a sliding hole adapted to the guide rods (26). The guide rods (26) are clearance-fitted with the sliding holes and are slidably disposed in the sliding holes.

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