Anti-collision structure of windshield wiper

Abstract

The utility model discloses a windshield wiper anti-collision structure which comprises a fixing frame and a windshield wiper, the windshield wiper is rotatably connected with a vehicle body through a mounting rod, a rubber block is fixedly sleeved on the mounting rod, two groups of friction plates which are symmetrically distributed are arranged in the fixing frame, and the two groups of friction plates are slidably connected with the fixing frame through sliding blocks. Racks are fixedly mounted on the two groups of sliding blocks, a mounting shaft is rotatably mounted in the fixing frame, a first gear sleeves the mounting shaft, a sliding rod is fixedly mounted in the fixing frame, and a rotating rod is rotatably mounted in the fixing frame; the two sets of friction plates and the multiple sets of friction rollers are gradually close to the rubber blocks or the outer wall of the mounting rod in the rotating process of the mounting rod, so that speed reduction protection on the mounting rod is achieved; when the installation rod drives the wiper to rotate anticlockwise on the surface of the windshield and approach the bottom edge of the windshield, the situation that the wiper collides with the windshield due to the fact that the speed of the wiper is high is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to windshield wiper technology field, concretely is a windshield wiper anti -collision structure. BACKGROUND

[0002] The windshield wiper is the important accessory installed on the wind window, its function is to sweep the rain and snow and dust on the wind window glass that hinder the sight, therefore, it has the important function to the driving safety, and the working principle of the windshield wiper is mainly driven through the motor, utilizes the connecting rod mechanism to convert the rotary kinetic energy of motor into the reciprocating motion of wiper arm, thereby realizes the water wiping function.

[0003] The windshield wiper reciprocating swing in prior art finally all are collected in the bottom of windshield, and when the rotation amplitude of windshield wiper is large in the collection process, then it is relatively easy to collide with the bottom of windshield and cause the damage of windshield wiper or windshield, and further affect the driving safety, for this, we propose a windshield wiper anti -collision structure to solve the above -mentioned problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a windshield wiper anti -collision structure to solve the problems in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a windshield wiper anti -collision structure, including the fixed frame and the windshield wiper, the windshield wiper is rotatably connected with the vehicle body through the mounting rod, the mounting rod is fixed with the rubber block, the fixed frame is equipped with two groups of symmetrical distribution's friction pieces, two groups The friction piece is slidably connected with the fixed frame through the sliding block, and the rack is fixedly installed on the sliding block, the mounting shaft is rotatably installed in the fixed frame, the first gear is sleeved on the mounting shaft, the first gear is respectively connected with two groups of racks, the fixed frame is fixedly installed with the slide bar, the slide bar is sleeved with two groups of symmetrical distribution's springs, the rotating rod is rotatably installed in the fixed frame, the fixed seat is fixedly installed below the fixed frame, the fixed seat is equipped with multiple groups of annular distribution's adjusting frames, and the friction roller is fixedly installed on the adjusting frame.

[0006] As a further preferred embodiment of the present technical solution, the two groups of friction pieces are symmetrically distributed on both sides of the rubber block, and the two groups of friction pieces are slidably sleeved with the mounting rod, the two groups of racks are symmetrically distributed, and the mounting shaft is located between the two groups of racks.

[0007] As a further preferred embodiment of the present technical solution, the two groups of sliding blocks are slidably sleeved with the slide bar, and the two ends of the spring are fixedly connected with the corresponding sliding block and the fixed frame.

[0008] As a further preferred technical solution of the present application, the rotating rod is arranged corresponding to the mounting shaft, the rotating rod and the mounting shaft are vertically distributed, the first bevel gear is sleeved on the mounting shaft, the second bevel gear is sleeved on the rotating rod, and the second bevel gear is in meshing connection with the first bevel gear.

[0009] As a further preferred technical solution of the present application, the rotating rod is arranged corresponding to the mounting shaft, the rotating rod and the mounting shaft are vertically distributed, the first bevel gear is sleeved on the mounting shaft, the second bevel gear is sleeved on the rotating rod, and the second bevel gear is in meshing connection with the first bevel gear.

[0010] As a further preferred technical solution of the present application, the rotating rod is arranged corresponding to the mounting shaft, the rotating rod and the mounting shaft are vertically distributed, the first bevel gear is sleeved on the mounting shaft, the second bevel gear is sleeved on the rotating rod, and the second bevel gear is in meshing connection with the first bevel gear.

[0011] As a further preferred technical solution of the present application, the rotating rod is arranged corresponding to the mounting shaft, the rotating rod and the mounting shaft are vertically distributed, the first bevel gear is sleeved on the mounting shaft, the second bevel gear is sleeved on the rotating rod, and the second bevel gear is in meshing connection with the first bevel gear.

[0012] The utility model provides a windshield wiper anti -collision structure has the following beneficial effects:

[0013] (1) the utility model discloses two groups of friction pieces gradually close to rubber block and gradually close rubber block in the process of installing the rod rotation and realize the speed protection for installing the rod, further avoid the impact of windshield glass caused by the fast speed of windshield wiper when installing the rod drives windshield wiper to rotate counterclockwise on the surface of windshield glass and approaches the bottom edge of windshield glass, further cause the damage of windshield wiper and windshield glass, and when the friction piece gradually moves away from the rubber block on the installing rod, the speed of windshield wiper will also slow down when approaching the maximum clockwise rotation angle under the action of two groups of springs on the sliding rod, which can also avoid the collision between the top end of windshield wiper and windshield glass to some extent.

[0014] (2) the utility model discloses the fixed seat and the annular distribution of multiple groups of friction rollers in the fixed seat on the basis of two groups of friction pieces, further realize the anti -collision protection when installing the rod and windshield wiper rotate, strengthen the anti -collision protection intensity when windshield wiper and installing the rod rotate, prolong the service life of windshield wiper and windshield glass. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the structure schematic view of the utility model's installing rod;

[0017] Figure 3 It is theFigure 2 Structure enlarged view at A;

[0018] Figure 4 Separate schematic view of the fixed seat and the adjusting frame of the utility model;

[0019] In the figure: 1, wiper; 2, mounting rod; 3, rubber block; 4, friction plate; 5, rack; 6, mounting shaft; 7, first gear; 8, rotating rod; 9, first bevel gear; 10, second bevel gear; 11, driving wheel; 12, driven wheel; 13, sliding rod; 14, spring; 15, fixed seat; 16, adjusting frame; 17, friction roller; 18, fixed shaft; 19, second gear; 20, mounting ring; 21, tooth ring; 22, sliding block; 23, fixed frame. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] The utility model provides technical schemes: such as Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a windshield wiper anti-collision structure includes a fixed frame 23 and a windshield wiper 1, the windshield wiper 1 is rotatably connected with the vehicle body through a mounting rod 2, a rubber block 3 is sleeved on the mounting rod 2, two groups of friction plates 4 are symmetrically arranged in the fixed frame 23, the two groups of friction plates 4 are slidably connected with the fixed frame 23 through sliding blocks 22, two groups of racks 5 are fixedly installed on the two groups of sliding blocks 22, an installation shaft 6 is rotatably installed in the fixed frame 23, a first gear 7 is sleeved on the installation shaft 6, the first gear 7 is meshingly connected with the two groups of racks 5, a sliding rod 13 is fixedly installed in the fixed frame 23, two groups of springs 14 are symmetrically sleeved on the sliding rod 13, a rotating rod 8 is rotatably installed in the fixed frame 23, a fixed seat 15 is fixedly installed below the fixed frame 23, a plurality of groups of adjusting frames 16 are arranged in the fixed seat 15, a plurality of groups of friction rollers 17 are fixedly installed on the plurality of groups of adjusting frames 16, the two groups of friction plates 4 are symmetrically arranged on both sides of the rubber block 3, the two groups of friction plates 4 are slidably sleeved on the mounting rod 2, the two groups of racks 5 are symmetrically arranged, the installation shaft 6 is located between the two groups of racks 5, the two groups of sliding blocks 22 are slidably sleeved on the sliding rod 13, the two ends of the spring 14 are fixedly connected with the corresponding sliding block 22 and the fixed frame 23, the rotating rod 8 is correspondingly arranged with the installation shaft 6, the rotating rod 8 is perpendicularly arranged with the installation shaft 6, a first bevel gear 9 is sleeved on the installation shaft 6, a second bevel gear 10 is sleeved on the rotating rod 8, the second bevel gear 10 is meshingly connected with the first bevel gear 9, a driven wheel 12 is sleeved on the rotating rod 8, a driving wheel 11 is sleeved on the mounting rod 2, the driving wheel 11 is meshingly connected with the driven wheel 12, under the driving of the four-bar linkage mechanism, the mounting rod 2 drives the windshield wiper 1 to rotate on the windshield of the vehicle body, so as to clean the rainwater or impurities attached to the windshield, when the windshield wiper 1 and the mounting rod 2 rotate counterclockwise, the windshield wiper 1 returns to the bottom of the windshield, in the process of counterclockwise rotation of the mounting rod 2, the driving wheel 11 is synchronously rotated, the driven wheel 12 meshingly connected with the driving wheel 11 drives the rotating rod 8 to rotate, the second bevel gear 10 on the rotating rod 8 is synchronously rotated clockwise, the first bevel gear 9 meshingly connected with the second bevel gear 10 drives the installation shaft 6 to rotate clockwise, the first gear 7 fixedly installed on the installation shaft 6 also rotates clockwise, the two groups of racks 5 symmetrically arranged on both sides of the first gear 7 and meshingly connected with the first gear 7 drive the sliding blocks 22 to synchronously slide inward on the fixed frame 23, under the driving of the racks 5 and the sliding blocks 22, the two groups of friction plates 4 synchronously slide inward and gradually approach the rubber block 3, gradually compress the rubber block 3, so that the rotating resistance of the mounting rod 2 becomes larger and larger, the rotating speed becomes smaller and smaller when the windshield wiper 1 is closer to the bottom of the windshield, effectively providing anti-collision protection for the windshield wiper 1, avoiding collision between the windshield wiper 1 and the windshield when the windshield wiper 1 rotates at a relatively large speed.

[0022] As Figure 4As shown, the center position of the fixed seat 15 corresponds to the axis position of the mounting rod 2, the multiple sets of friction rollers 17 are annularly distributed relative to the mounting rod 2, the multiple sets of adjusting frames 16 are all rotationally connected with the fixed seat 15 through the fixed shafts 18, the multiple sets of fixed shafts 18 are all sleeved with the second gears 19, the fixed seat 15 is provided with a mounting ring 20 which is rotationally connected with the fixed seat 15 through a bearing, the mounting ring 20 is sleeved with a tooth ring 21, the multiple sets of second gears 19 are all meshingly connected with the tooth ring 21, in the process that the motor in the fixed seat 15 drives one of the fixed shafts 18 to rotate, the multiple sets of second gears 19 and the tooth ring 21 are used to realize the synchronous rotation of the multiple sets of fixed shafts 18 and the adjusting frames 16 on the fixed seat 15, the multiple sets of friction rollers 17 on the multiple sets of adjusting frames 16 gradually shrink and gradually tightly contact with the outer wall of the mounting rod 2, thereby strengthening the anti-collision protection for the mounting rod 2 and the wiper 1 in the rotating process on the basis of the two sets of friction plates 4, and the anti-collision protection of the multiple sets of friction rollers 17 for the mounting rod 2 can be applied to any rotating direction of the mounting rod 2.

[0023] The utility model provides a kind of wiper anti-collision structure, specific working principle as follows: under the driving of four-bar linkage mechanism, mounting rod 2 drives wiper 1 to rotate on the windshield of vehicle body, realize the cleaning for the rainwater or impurity attached on windshield, when wiper 1 and mounting rod 2 rotate counterclockwise, wiper 1 returns to the bottom of windshield, in the process that mounting rod 2 rotates counterclockwise, driving wheel 11 is synchronously rotated, driven wheel 12 meshingly connected with it drives rotating rod 8 to rotate by nature, second bevel gear 10 on rotating rod 8 is synchronously rotated, first bevel gear 9 meshingly connected with second bevel gear 10 drives mounting shaft 6 to rotate clockwise, first gear 7 fixedly installed on mounting shaft 6 also rotates clockwise, two sets of racks 5 distributed on the both sides of first gear 7 and all meshingly connected with first gear 7 drive slider 22 to synchronously slide inward on fixed frame 23, under the driving of rack 5 and slider 22, two sets of friction plates 4 are synchronously slid inward and gradually close to rubber block 3, gradually compress rubber block 3, so that the rotating resistance of mounting rod 2 is more and more big, rotating speed is smaller and smaller when being closer to the bottom of windshield, effectively provide anti-collision protection for wiper 1, avoid that wiper 1 collides with windshield when rotating at high speed, in the process that the motor in fixed seat 15 drives one of the fixed shafts 18 to rotate, the multiple sets of second gears 19 and the tooth ring 21 are used to realize the synchronous rotation of the multiple sets of fixed shafts 18 and the adjusting frames 16 on the fixed seat 15, the multiple sets of friction rollers 17 on the multiple sets of adjusting frames 16 gradually shrink and gradually tightly contact with the outer wall of the mounting rod 2, thereby strengthening the anti-collision protection for the mounting rod 2 and the wiper 1 in the rotating process on the basis of the two sets of friction plates 4, and the anti-collision protection of the multiple sets of friction rollers 17 for the mounting rod 2 can be applied to any rotating direction of the mounting rod 2.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wiper anti-collision structure comprising a fixed bracket (23) and a wiper (1), characterized in that: The wiper (1) is rotatably connected with the vehicle body through the mounting rod (2), the mounting rod (2) is fixedly sleeved with the rubber block (3), the fixed frame (23) is provided with two groups of symmetrically distributed friction plates (4), the two groups of friction plates (4) are slidably connected with the fixed frame (23) through the sliding block (22), the two groups of sliding blocks (22) are fixedly installed with the rack (5), the fixed frame (23) is rotatably installed with the mounting shaft (6), the mounting shaft (6) is sleeved with the first gear (7), the first gear (7) is rotatably connected with the two groups of racks (5), the fixed frame (23) is fixedly installed with the sliding rod (13), the sliding rod (13) is sleeved with two groups of symmetrically distributed springs (14), the fixed frame (23) is rotatably installed with the rotating rod (8), the fixed frame (23) is fixedly installed with the fixed seat (15) below, the fixed seat (15) is provided with a plurality of groups of annularly distributed adjusting frames (16), and the plurality of groups of adjusting frames (16) are fixedly installed with the friction rollers (17).

2. The wiper anti-collision structure according to claim 1, characterized in that: The two groups of friction plates (4) are symmetrically distributed on the two sides of the rubber block (3), the two groups of friction plates (4) are slidably sleeved with the mounting rod (2), the two groups of racks (5) are symmetrically distributed, and the mounting shaft (6) is located between the two groups of racks (5).

3. The wiper anti-collision structure according to claim 1, characterized in that: The two groups of sliding blocks (22) are slidably sleeved with the sliding rod (13), and the two ends of the spring (14) are fixedly connected with the corresponding sliding block (22) and the fixed frame (23) respectively.

4. The wiper anti-collision structure according to claim 1, characterized in that: The rotating rod (8) is correspondingly arranged with the mounting shaft (6), the rotating rod (8) and the mounting shaft (6) are vertically distributed, the mounting shaft (6) is sleeved with the first bevel gear (9), the rotating rod (8) is sleeved with the second bevel gear (10), and the second bevel gear (10) is rotatably connected with the first bevel gear (9).

5. The wiper anti-collision structure according to claim 1, characterized in that: The rotating rod (8) is sleeved with the driven wheel (12), the mounting rod (2) is sleeved with the driving wheel (11), and the driving wheel (11) is rotatably connected with the driven wheel (12).

6. The wiper anti-collision structure according to claim 1, characterized in that: The fixed seat (15) is correspondingly arranged with the mounting rod (2) at the central position, a plurality of groups of friction rollers (17) are annularly distributed about the mounting rod (2), a plurality of groups of adjusting frames (16) are rotatably connected with the fixed seat (15) through the fixed shaft (18), a plurality of groups of fixed shafts (18) are sleeved with the second gear (19), and the fixed seat (15) is provided with the mounting ring (20).

7. A wiper anti-collision structure according to claim 6, characterized in that: The mounting ring (20) is rotatably connected with the fixed seat (15) through the bearing, the mounting ring (20) is sleeved with the gear ring (21), and a plurality of groups of second gears (19) are rotatably connected with the gear ring (21).

Images