Double-groove bearing for automobile windscreen wiper

Abstract

The utility model relates to the field of double-groove bearings, and discloses a double-groove bearing for an automobile windscreen wiper, which comprises a shell and a steel ring, the steel ring is arranged on the inner side of the shell, wide slideways are respectively arranged on the periphery of the top and the periphery of the bottom of the surface of the steel ring, and steel balls are movably embedded in the wide slideways. Rails are arranged on the periphery of the upper portion and the periphery of the lower portion in the shell, and a narrow sliding way is arranged on the periphery of the center in the steel ring. According to the double-groove bearing for the automobile windscreen wiper, center holes are formed in the middle positions of the two sides of the outer portion of the shell, a cover plate is closed after a steel ring is installed in the shell, positioning pins with blocking blocks are pushed in the center holes in the two sides, the positioning pins are embedded into narrow sliding ways, then shifting blocks are shifted along the inner walls of two sets of adjusting grooves, and the two sets of adjusting grooves are formed in the inner walls of the two sets of adjusting grooves. The corresponding sliding blocks are completely embedded into the inserting grooves to be locked and fixed, rotation of the steel ring is limited from the center, and the problem that a limiting assembly is lacked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of double groove bearings, in particular to a double groove bearing used for automobile wipers. Background Art

[0002] The wiper is a necessary mechanism installed on the surface of the windshield. During long-term driving, dust, rain and snow will cover the outer wall of the glass, which will affect the driver's ability to observe road conditions and easily cause traffic accidents. Therefore, it is necessary to start the wiper regularly to clean the windshield.

[0003] In order to help the wiper rod rotate normally, bearings are often used to connect the shaft and the rotating part to reduce friction and maintain the stability of the wiper and transmission components. However, the double-groove bearings in the past had more steel balls than single-layer bearings, and lacked a limit assembly at the center. After a long period of use, scraping and jamming are inevitable, which is not conducive to maintaining the stability of the internal structure of the bearing during operation.

[0004] Now, a novel double groove bearing for automobile wipers is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a double groove bearing for automobile wipers, so as to solve the problem of lack of limiting components in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-groove bearing for a car wiper, comprising a shell and a steel ring, a steel ring is arranged on the inner side of the shell, and wide slideways are arranged on the top and bottom of the steel ring surface respectively, and steel balls are movably embedded in the wide slideways, tracks are arranged on the upper and lower sides of the shell, a narrow slideway is arranged on the center of the steel ring, center holes are arranged at the middle positions of the two sides of the outer side of the shell, and adjustment grooves are arranged at the upper and lower positions of the center hole, a locating pin is inserted on the inner side of the center hole, and sliding balls are movably embedded on the inner side of the locating pin, slots are arranged at the upper and lower positions of one side of the outer side of the locating pin, a blocking block is fixed on the outside of the locating pin, a sliding block is movably inserted in the adjusting groove, and a shifting block is fixed on one side of the sliding block, and a cover plate is arranged at the upper and lower positions of the shell.

[0007] Preferably, one side of the steel ball is embedded in the track, and the steel ball can roll between the track and the wide slideway.

[0008] Preferably, the end of the slider can be embedded in the slot, and the slider can move vertically along the inner wall of the adjustment slot.

[0009] Preferably, blocks are fixed on both sides of the cover plate surface, two sets of bolts are meshed and connected at the top and bottom of both sides of the outer shell, sockets are provided on both sides of the top and bottom of the shell, wiping blocks are fixed on both sides of the center of the cover plate, inclined holes are provided on both sides of the inside of the cover plate, and patches are inserted on the surfaces of the inclined holes, and shaft sleeves are fixed at the center of the top and bottom of the steel ring.

[0010] Preferably, the inclined hole is communicated with the wiping block, and the bolt is engaged and connected in the transverse screw hole of the clamping block.

[0011] Preferably, a circular ring is fixed at the center of the cover plate surface, and a mounting groove is provided at the center of the circular ring surface, a liquid level tube is installed in the mounting groove, and bubbles are retained in the liquid level tube.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the double groove bearing for automobile wiper can not only prevent the bearing from getting stuck inside, facilitate lubrication of the internal structure, but also maintain the balance of the shaft sleeve;

[0013] By setting a center hole at the middle position of both sides of the outer shell, the steel ring is installed inside the shell and the cover is closed, and the positioning pins with blocks are pushed into the center holes on both sides so that the positioning pins are embedded in the narrow slideway, and then the blocks are moved along the inner walls of the two groups of adjustment grooves so that the corresponding sliders are completely embedded in the slots and locked and fixed to prevent the positioning pins from loosening, and the rotation of the steel ring is restricted from the center so that it maintains a horizontal rotation state;

[0014] By arranging cover plates at both the upper and lower parts of the housing, the cover plates are respectively attached to the top and bottom of the housing when closed, and each card block is also embedded in the corresponding jack. By screwing the bolts in the side screw holes, the bolts can be screwed into the positioning holes of the card blocks for fixing. According to the up and down orientation of the bearing, the two patches at the top are opened, and lubricating oil is dripped into the exposed oblique holes to wet the wiping block, so that the internal steel ring can be used to lubricate and maintain the shaft sleeve when it rotates, and the lubrication direction is changeable and can be adjusted according to the orientation of the bearing installation.

[0015] A circular ring is fixed at the center of the cover surface, and mounting grooves for inserting the liquid level tube are left on the upper and lower surfaces of the circular rings. The liquid level tube can be fixed here and can be easily removed without affecting the rotation work. When installing the double-groove bearing, the bearing assembly can be judged whether it is horizontal based on the sliding of bubbles guided by the liquid inside the liquid level tube, and the inclination angles on both sides of the bearing can be adjusted to avoid interruption of the rotation work due to the skewed installation of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the jack of the utility model;

[0019] Figure 4 It is a schematic diagram of the top view structure of the cover plate of the utility model.

[0020] In the figure: 1. shell; 2. cover plate; 3. patch; 4. inclined hole; 5. bushing; 6. ring; 7. mounting groove; 8. bubble; 9. liquid level tube; 10. wipe block; 11. steel ring; 12. center hole; 13. adjustment groove; 14. bolt; 15. block; 16. steel ball; 17. wide slide; 18. narrow slide; 19. positioning pin; 20. blocking block; 21. slot; 22. dial block; 23. slider; 24. slide ball; 25. track; 26. socket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1-4 A double groove bearing for automobile wipers, comprising a shell 1 and a steel ring 11, wherein the steel ring 11 is arranged on the inner side of the shell 1, and wide slideways 17 are arranged on the top and bottom of the surface of the steel ring 11 respectively, and steel balls 16 are movably embedded in the wide slideway 17, and tracks 25 are arranged on the upper and lower sides of the shell 1, and a narrow slideway 18 is arranged on the inner center of the steel ring 11, and a center hole 12 is arranged at the middle position of both sides of the outer side of the shell 1, and an adjustment groove 13 is arranged at the upper and lower positions of the center hole 12, a positioning pin 19 is inserted on the inner side of the center hole 12, and a sliding ball 24 is movably embedded on the inner side of the positioning pin 19, a slot 21 is arranged on the upper and lower positions of one side of the outer side of the positioning pin 19, a blocking block 20 is fixed on the outer side of the positioning pin 19, a slider 23 is movably inserted in the adjusting groove 13, and a shifting block 22 is fixed on one side of the slider 23, and a cover plate 2 is arranged at the upper and lower positions of the shell 1;

[0023] One side of the steel ball 16 is embedded in the track 25, and the steel ball 16 can roll between the track 25 and the wide slideway 17. The end of the slider 23 can be embedded in the slot 21, and the slider 23 can move vertically along the inner wall of the adjustment slot 13;

[0024] Specifically, if Figure 1 and Figure 2 As shown, after the steel ring 11 is installed inside the shell 1, the cover plate 2 is closed, and the positioning pins 19 with the blocking blocks 20 are pushed into the center holes 12 on both sides so that the positioning pins 19 are embedded in the narrow slideway 18, and then the blocks 22 are pushed along the inner walls of the two sets of adjustment grooves 13 so that the corresponding sliders 23 are completely embedded in the slots 21 and locked and fixed, thereby limiting the rotation of the steel ring 11 from the center and avoiding friction jamming.

[0025] Embodiment 2: Blocks 15 are fixed on both sides of the surface of the cover plate 2, two sets of bolts 14 are meshed and connected at the top and bottom of both sides of the outer shell 1, and plug holes 26 are provided on both sides of the top and bottom of the shell 1. Wiping blocks 10 are fixed on both sides of the center of the cover plate 2, and oblique holes 4 are provided on both sides of the inside of the cover plate 2, and patches 3 are inserted on the surface of the oblique holes 4. Axle sleeves 5 are fixed at the center of the top and bottom of the steel ring 11;

[0026] The oblique hole 4 is connected to the wiping block 10, and the bolt 14 is engaged and connected in the transverse screw hole of the clamping block 15;

[0027] Specifically, if Figure 1 , Figure 3 and Figure 4 As shown, when the cover plate 2 is closed, it is respectively attached to the top and bottom of the housing 1. At this time, each block 15 is also embedded in the corresponding socket 26. By screwing the bolt 14 in the side screw hole, the bolt 14 can be screwed into the positioning hole of the block 15 for fixing. According to the up and down direction of the bearing, the two patches 3 at the top are opened, and lubricating oil is dripped into the exposed inclined hole 4 to wet the wiping block 10, so that the internal steel ring 11 can be used to lubricate and maintain the sleeve 5 when it drives it to rotate.

[0028] Embodiment 3: A ring 6 is fixed at the center of the surface of the cover plate 2, and a mounting groove 7 is provided at the center of the surface of the ring 6. A liquid level tube 9 is installed in the mounting groove 7, and a bubble 8 is retained in the liquid level tube 9;

[0029] Specifically, if Figure 1 As shown, mounting grooves 7 for inserting liquid level tubes 9 are reserved on the surfaces of the upper and lower circular rings 6, where the liquid level tubes 9 can be fixed and easily removed without affecting the rotation work. When installing the double groove bearing, the bearing assembly can be judged to be horizontal based on the sliding of the bubbles 8 guided by the liquid inside the liquid level tube 9, and the inclination angles on both sides of the bearing can be adjusted to avoid separation or damage of the shaft body from the rotating parts.

[0030] Working principle: When the utility model is used, first install the steel ring 11 inside the shell 1, push the positioning pin 19 with the block 20 in the center hole 12 on both sides, so that the positioning pin 19 is embedded in the narrow slide 18, and then move the block 22 along the inner wall of the two groups of adjustment grooves 13, so that the corresponding slider 23 is completely embedded in the slot 21 and locked and fixed, and the rotation of the steel ring 11 is restricted from the center, and then close the cover plate 2, and fit it to the top and bottom of the shell 1 respectively. At this time, each block 15 is also embedded in the corresponding jack 26, and the side screw hole is screwed. The bolt 14 in the middle can be screwed into the positioning hole of the block 15 for fixing. According to the up and down orientation of the bearing, choose to open the two patches 3 at the top, drip lubricating oil into the exposed inclined hole 4 and wet the wiping block 10 for maintenance. The surfaces of the upper and lower rings 6 are both provided with mounting grooves 7 for inserting the liquid level tube 9, which can be used for fixing the liquid level tube 9 and can also be easily removed without affecting the rotation work. When installing the double-groove bearing, the bearing assembly can be judged whether it is horizontal according to the sliding of the bubble 8 guided by the liquid inside the liquid level tube 9, and the inclination angle on both sides of the bearing can be adjusted.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A double groove bearing for a car wiper, comprising a housing (1) and a steel ring (11), characterized in that: A steel ring (11) is provided on the inner side of the shell (1), and wide slideways (17) are provided on the top and bottom of the surface of the steel ring (11), and steel balls (16) are movably embedded in the wide slideways (17). Tracks (25) are provided on the upper and lower sides of the shell (1), and a narrow slideway (18) is provided on the center of the steel ring (11). Center holes (12) are provided at the middle positions of both sides of the outer shell (1), and the center holes (12) are provided at the upper and lower positions. An adjusting groove (13) is provided, a positioning pin (19) is inserted into the inner side of the central hole (12), and a sliding ball (24) is movably embedded into the inner side of the positioning pin (19), a slot (21) is provided at both the upper and lower positions of an outer side of the positioning pin (19), a blocking block (20) is fixed to the outer side of the positioning pin (19), a sliding block (23) is movably inserted into the adjusting groove (13), and a shifting block (22) is fixed to one side of the sliding block (23), and a cover plate (2) is provided at both the upper and lower positions of the outer shell (1).

2. A double groove bearing for automobile wiper according to claim 1, characterized in that: One side of the steel ball (16) is embedded in the track (25), and the steel ball (16) can roll between the track (25) and the wide slideway (17).

3. The double groove bearing for automobile wiper according to claim 1, characterized in that: The end of the slider (23) can be embedded in the slot (21), and the slider (23) can move vertically along the inner wall of the adjustment groove (13).

4. The double groove bearing for automobile wiper according to claim 1, characterized in that: Blocks (15) are fixed on both sides of the surface of the cover plate (2), two sets of bolts (14) are meshed and connected at the top and bottom of both sides of the outer shell (1), and sockets (26) are provided on both sides of the top and bottom of the outer shell (1). Wiping blocks (10) are fixed on both sides of the center of the cover plate (2), and oblique holes (4) are provided on both sides of the inside of the cover plate (2), and patches (3) are inserted on the surfaces of the oblique holes (4). Axle sleeves (5) are fixed at the center of the top and bottom of the steel ring (11).

5. A double groove bearing for automobile wiper according to claim 4, characterized in that: The inclined hole (4) is connected to the wiping block (10), and the bolt (14) is engaged and connected in the transverse screw hole of the clamping block (15).

6. A double groove bearing for automobile wiper according to claim 1, characterized in that: A circular ring (6) is fixed at the center of the surface of the cover plate (2), and a mounting groove (7) is provided at the center of the surface of the circular ring (6). A liquid level tube (9) is installed in the mounting groove (7), and bubbles (8) are retained in the liquid level tube (9).

Images