Wiper motor reduction gearbox

Abstract

The utility model discloses a wiper motor reduction gearbox belongs to the technical field of automobile parts, to solve the complex connection structure of existing reduction gearbox, the problem of dismounting is troublesome and time -consuming, this reduction gearbox includes motor, reduction gearbox, the fixed block for installation and quick -release assembly, quick -release assembly includes the fixed seat with fixed block connection, rotatable knob and the limiting post driven by it, through pressing and rotating knob can drive limiting post switches between locking and unlocking position, thereby realizes the quick engagement and separation of reduction gearbox and car body or support. The utility model discloses through this innovative quick -release design, the originally time -consuming and laborious bolt fastening process changes into simple and direct rotation action, greatly simplifies the operation, can improve the work efficiency of automobile in production assembly and after -sales maintenance link significantly, has outstanding practicality and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a wiper motor gearbox. Background Technology

[0002] Windshield wipers are a key safety component in automobiles that ensures drivers have clear visibility in rainy or snowy weather. Their core drive unit typically consists of a motor and a gearbox. The main function of the motor and gearbox is to convert the high-speed, low-torque output of the motor into the high-torque, low-speed motion required to drive the wiper arm to swing back and forth.

[0003] In existing technologies, to ensure the stability of the connection, the wiper motor gearbox is usually firmly fixed to the vehicle frame or a special mounting bracket using a combination of multiple bolts and nuts. While this connection method does provide a reliable fixing effect, its structure is relatively complex. During installation or disassembly, special tools are required to tighten or loosen all bolts one by one. This process is particularly cumbersome and time-consuming when operating in the confined space inside the vehicle. This not only increases assembly time on the production line but also significantly increases the difficulty and time cost of later maintenance and repair, thus reducing overall work efficiency.

[0004] Therefore, this utility model proposes a wiper motor gearbox to overcome the shortcomings of the prior art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a wiper motor gearbox, which aims to improve the problem that the existing wiper motor gearbox has a complex connection structure, resulting in cumbersome installation and disassembly processes and inconvenient maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The wiper motor gearbox includes: a motor, a gearbox, a mounting block one and a mounting block two; and a quick-release assembly; The quick-release assembly includes a fixed base connected to the fixed block, a knob rotatably mounted on the fixed base, and a limiting post driven by the knob. The limiting post of the quick-release assembly can switch between a locked position and an unlocked position to engage with or separate from the second fixing block, thereby achieving a detachable quick connection between the first fixing block and the second fixing block.

[0007] Preferably, the quick-release assembly further includes a spring for applying an axial force to the limiting post to drive or reset the limiting post.

[0008] Preferably, the quick-release assembly further includes a pressure block linked to the knob, the pressure block being used to compress the spring when the knob is pressed.

[0009] Preferably, the quick-release assembly further includes a sliding post coaxially arranged with the knob, and the limiting post is fixedly connected to the end of the sliding post.

[0010] Preferably, the second fixing block is provided with a through hole for the limiting post to pass through. When the limiting post is locked, it is engaged with the outer wall of the second fixing block, and when the fixing block is unlocked, it slides out from the inner wall of the second fixing block.

[0011] Preferably, the gearbox is equipped with a transmission assembly, which includes a worm gear and a helical gear meshing with the worm gear.

[0012] Preferably, the transmission assembly further includes a fixed post fixed to the helical gear, a pin hinged to the fixed post, and a connecting rod with one end hinged to the pin.

[0013] Preferably, the transmission assembly further includes a rotating column and a swing arm, one end of the swing arm being hinged to the other end of the connecting rod and capable of reciprocating around the rotating column, the rotating column being used to connect the wiper arm.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting up a quick-release assembly consisting of a fixed base, a knob, a spring, and a limiting post working together, the limiting post can be driven by rotating the knob to quickly lock or unlock with the fixed block. This solves the problems of complex connection structure, cumbersome disassembly and assembly, and inconvenient maintenance of the wiper motor gearbox in the prior art. It achieves the technical effect of simplified structure, convenient operation, and quick installation and disassembly, thereby greatly improving assembly and maintenance efficiency.

[0015] 2. In this utility model, by adopting the meshing transmission of worm gear and helical gear, and in conjunction with the linkage mechanism composed of pin shaft, connecting rod and swing arm, the problems of low transmission efficiency, unstable operation or high noise in some transmission mechanisms are solved. It achieves the technical effect of smooth transmission, good deceleration and torque increase effect, low working noise and compact overall structure, and can transmit power to the wiper arm stably and reliably for a long time. Attached Figure Description

[0016] Figure 1 This is a perspective view of the wiper motor reduction gearbox proposed in this utility model; Figure 2 This is a schematic diagram of the wiper arm of the wiper motor reduction gearbox proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the helical gear of the wiper motor reduction gearbox proposed in this utility model.

[0017] Legend: 1. Gearbox; 2. Motor; 3. Wiper arm; 4. Fixing block one; 5. Fixing block two; 6. Quick release assembly; 601. Fixing base; 602. Pressure block; 603. Knob; 604. Spring; 605. Sliding column; 606. Limiting column; 7. Transmission assembly; 701. Fixing column; 702. Helical gear; 703. Worm gear; 704. Pin; 705. Connecting rod; 706. Swing arm; 707. Rotating column. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-4 The present invention provides an embodiment of a wiper motor reduction gearbox, comprising a motor 2 as a power source, a reduction gearbox 1 connected to the motor 2 in transmission, a fixing block 4 and a fixing block 5 for mounting the reduction gearbox 1, and a quick-release assembly 6 for quick assembly and disassembly. The power output end of the reduction gearbox 1 is used to drive the wiper arm 3 to reciprocate. The motor 2 and the reduction gearbox 1 are fixedly connected to form an integral structure. The reduction gearbox 1 is mounted on the vehicle body or bracket through the fixing block 4 and the fixing block 5. The quick-release assembly 6 is used to realize the detachable quick locking between the fixing block 4 and the fixing block 5. The quick-release assembly 6 includes a fixed base 601, a pressure block 602, a knob 603, a spring 604, a sliding post 605, and a limiting post 606. The fixed base 601 is connected to the first fixed block 4. The knob 603 is rotatably mounted on the fixed base 601. The sliding post 605 is coaxially arranged with the knob 603 and can rotate with the knob 603. The limiting post 606 is fixedly connected to the end of the sliding post 605. The second fixed block 5 has a through hole for the limiting post 606 to pass through. In the assembled and locked state, the limiting post 606 passes through the through hole and engages with the outer wall of the second fixed block 5. The pressure block 602 is linked to the knob 603, and the spring 604 is sleeved on the... The outer periphery of the sliding post 605 has its two ends abutting against the inner walls of the pressure block 602 and the fixed seat 601, respectively. The spring 604 is used to apply axial force to the limiting post 606 to drive or reset the limiting post 606. By pressing and rotating the knob 603, the pressure block 602 is driven to compress the spring 604 and drive the sliding post 605 and the limiting post 606 to move and rotate axially, so that the limiting post 606 can switch between the locked position engaged with the outer wall of the second fixed block 5 and the unlocked position slid out from the inner wall of the second fixed block 5. This rotary locking connection structure ensures the speed and reliability of the connection between the first fixed block 4 and the second fixed block 5. The gearbox 1 is equipped with a transmission assembly 7. The transmission assembly 7 includes a worm gear 703 and a helical gear 702 that meshes with the worm gear 703. The transmission assembly 7 also includes a fixed post 701 fixed to the helical gear 702, a pin 704 hinged to the fixed post 701, and a connecting rod 705 with one end hinged to the pin 704. The transmission assembly 7 further includes a rotating post 707 and a swing arm 706. One end of the swing arm 706 is hinged to the other end of the connecting rod 705 and can reciprocate around the rotating post 707. The rotating post 707 is used to connect the wiper arm 3.

[0020] Working principle: When motor 2 starts running, its power is transmitted to helical gear 702 via worm gear 703 in gearbox 1. The rotation of helical gear 702 drives fixed column 701 to rotate, which in turn converts the rotational motion into the reciprocating swing of swing arm 706 around rotating column 707 through linkage mechanism composed of pin 704, connecting rod 705 and swing arm 706. Finally, it drives wiper arm 3 connected to rotating column 707 to reciprocate and sweep the glass surface. When disassembling gearbox 1, rotating knob 603 drives sliding column 605 and limiting column 606 to rotate, and the limiting is achieved by the rebound force of spring 604. The column 606 can be quickly disassembled by sliding out from the inner wall of the second fixing block 5. When installing and fixing, first press the knob 603 to drive the pressure block 602 to compress the spring 604, then rotate the knob 603 to drive the limiting column 606 to the locking position. After releasing the knob 603, the reaction force of the spring 604 can lock the limiting column 606 into the outer wall of the second fixing block 5, thereby completing the fixing of the first fixing block 4 and the second fixing block 5. Through this rotating locking synergistic action of the quick-release component 6, this utility model effectively solves the problem of complicated installation and disassembly and inconvenient maintenance caused by the complex connection structure in the prior art.

Claims

1. Wiper motor gearbox, including: Motor (2), gearbox (1) connected to the motor (2) for transmission, and fixing block one (4) and fixing block two (5) for mounting the gearbox (1); The feature is that it further includes a quick-release assembly (6), which includes a fixed base (601) connected to the first fixed block (4), a knob (603) rotatably mounted on the fixed base (601), and a limiting post (606) driven by the knob (603). The limiting post (606) can switch between a locked position and an unlocked position to engage with the second fixed block (5) or separate from the second fixed block (5), respectively.

2. The wiper motor reduction gearbox according to claim 1, characterized in that: The quick-release assembly (6) also includes a spring (604) for applying an axial force to the limiting post (606) to drive or reset the limiting post (606).

3. The wiper motor reduction gearbox according to claim 2, characterized in that: The quick-release assembly (6) also includes a pressure block (602) linked to the knob (603), the pressure block (602) being used to compress the spring (604) when the knob (603) is pressed.

4. The wiper motor reduction gearbox according to claim 1, characterized in that: The quick-release assembly (6) also includes a sliding post (605), which is coaxially arranged with the knob (603). The limiting post (606) is fixedly connected to the end of the sliding post (605) and rotates with it.

5. The wiper motor reduction gearbox according to claim 1, characterized in that: The second fixing block (5) has a through hole through which the limiting post (606) passes. When the locking position is reached, the limiting post (606) is engaged with the outer wall of the second fixing block (5) and when the unlocking position is reached, it slides out from the inner wall of the second fixing block (5).

6. The wiper motor reduction gearbox according to claim 1, characterized in that: The gearbox (1) is equipped with a transmission assembly (7), which includes a worm (703) and a helical gear (702) meshing with the worm (703).

7. The wiper motor reduction gearbox according to claim 6, characterized in that: The transmission assembly (7) further includes a fixed post (701) fixed to the helical gear (702), a pin (704) hinged to the fixed post (701), and a connecting rod (705) with one end hinged to the pin (704).

8. The wiper motor reduction gearbox according to claim 7, characterized in that: The transmission assembly (7) further includes a rotating column (707) and a swing arm (706). One end of the swing arm (706) is hinged to the other end of the connecting rod (705) and can swing back and forth around the rotating column (707). The rotating column (707) is used to connect the wiper arm (3).

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