CN205301681U - a vehicle lens - Google Patents

Abstract

The utility model discloses an on-vehicle camera lens, including lens cone (1), lens cone (1) in be equipped with rear lens group (2), rear lens group (2) be close to thing side one side and be equipped with preceding lens group (3), preceding lens group (3) and lens cone (1) between be equipped with and be used for waterproof first sealing washer (4), lens cone (1) on still be equipped with rather than connect the cooperation soon and make preceding lens group (3) extrude first sealing washer (4) and then make preceding lens group (3) and lens cone (1) zonulae occludens's lens cap (5), lens cap (5) on be equipped with and supply preceding lens group (3) exerted through-hole (6), lens cap (5) and lens cone (1) between still be equipped with and receive the extrusion and be used for waterproof second sealing washer (7) when the two connects the cooperation soon. The utility model discloses simple structure, the assembly is easy, and water-proof effects is good.

Description

a vehicle lens

【Technical field】

The utility model relates to a vehicle lens.

【Background technique】

At present, the waterproof structure of the vehicle lens is mainly to set a sealing ring between the front lens group and the rear lens group, and to pour waterproof glue between the lens cap and the front lens group, so as to achieve a double-layer waterproof effect and meet the waterproof level. However, for a vehicle-mounted lens with a small wide-angle and a high waterproof level, the above-mentioned waterproof structure is difficult to meet the requirements. Due to the small size, it will be difficult to pour waterproof glue between the lens cap and the front lens group. Difficult, there is no guarantee that the poured glue will overflow to the place where the front lens group, the lens cap and the lens barrel are in contact, resulting in poor installation of the lens cap, poor waterproof effect, and poor lens appearance.

Therefore, the utility model is researched and proposed for the deficiencies of the existing technology.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a vehicle lens with simple structure, easy assembly and good waterproof effect.

The utility model is achieved through the following technical solutions:

A vehicle-mounted lens is characterized in that it includes a lens barrel 1, a rear lens group 2 is arranged in the lens barrel 1, and a front lens group 3 is arranged on the side of the rear lens group 2 close to the object side. A first sealing ring 4 for waterproofing is provided between the front lens group 3 and the lens barrel 1, and the lens barrel 1 is also provided with a screw connection with it so that the front lens group 3 squeezes the first sealing ring 4 so that the The front lens group 3 is closely connected to the lens cap 5 of the lens barrel 1. The lens cap 5 is provided with a through hole 6 for the front lens group 3 to be exposed. The second sealing ring 7 used for waterproofing is extruded when the two are screwed together.

The above vehicle lens is characterized in that: the front lens group 3 is composed of one lens.

The above-mentioned vehicle-mounted lens is characterized in that: the lens barrel 1 is provided with an annular groove 8 , and the first sealing ring 4 is arranged in the annular groove 8 and is in close contact with the end surface of the front lens group 3 .

The above vehicle lens is characterized in that: the second sealing ring 7 is arranged between the end of the lens barrel 1 and the bottom surface 5 a of the lens cap 5 , and is in contact with the side wall 3 a of the front lens group 3 .

The above-mentioned vehicle-mounted lens is characterized in that: the end of the lens barrel 1 is provided with a recessed platform 10 recessed downward, and the side wall 3a of the front lens group 3 cooperates with the concave platform 10 to form a ring shape Groove 11, the second sealing ring 7 is set in the annular groove 11.

The above-mentioned vehicle-mounted lens is characterized in that: the lower inner wall of the lens barrel 1 is provided with a boss 9 protruding toward the center, and the rear lens group 2 is loaded from the upper part of the lens barrel 1 and pressed against it. On boss 9.

The vehicle-mounted lens as described above is characterized in that: the rear lens group 2 includes a first lens 21, a first spacer 22, a second lens 23, a second spacer 24, The third lens 25 and the fourth lens 26 , the third lens 25 and the fourth lens 26 are glued together, and the fourth lens 26 is abutted on the boss 9 .

The vehicle-mounted lens as described above is characterized in that: the front lens group 3 includes a protruding part 3b protruding into the through hole 6 and a step part protruding from the outer wall of the protruding part 3b to form a step with the protruding part 3b 3c, when the lens cap 5 is screwed to the lens barrel 1, the bottom surface 5a of the lens cap 5 is in contact with the step portion 3c.

Compared with the prior art, the utility model has the following advantages:

1. A first sealing ring for waterproofing is provided between the front lens group and the lens barrel of the present utility model, and the lens barrel is also provided with a screw connection to cooperate with it so that the front lens group squeezes the first sealing ring so that the front lens group The lens cap closely connected with the lens barrel, the lens cap is provided with a through hole for the front lens group to be exposed, and the lens cap and the lens barrel are also provided with a second waterproof part that is squeezed when the two are screwed together. sealing ring. Therefore, the second sealing ring is assembled between the lens cap and the lens barrel, and cooperates with the first sealing ring to achieve a double-layer waterproof effect, and it will not affect the appearance, and the screw connection between the lens cap and the lens barrel will not be affected. will be interfered with. It makes up for the double-layer waterproof performance that the current wide-angle vehicle lens with small size and high waterproof level cannot achieve. The durability of long-term use in the environment improves the life of the lens and the quality of the lens. It is suitable for all wide-angle vehicle-mounted lenses with high waterproof requirements and relatively small volume.

2. The front lens group of the present invention is composed of a lens, and the second sealing ring is arranged between the end of the lens barrel and the bottom surface of the lens cap, and is in contact with the side wall of the front lens group. Therefore, the second sealing ring is in direct contact with the lens cap, the lens barrel, and the front lens group, so the sealing effect is better and the waterproof effect is good.

3. The end of the lens barrel of the present utility model is provided with a concave platform recessed downward, the side wall of the front lens group cooperates with the concave platform to form an annular groove, and the second sealing ring is arranged in the annular groove. When the vehicle-mounted lens is assembled, after the front lens group is put in, the side wall of the front lens group and the concave platform form an annular groove, which is convenient for the second sealing ring to be directly put into the annular groove, so that the assembly positioning of the second sealing ring is more accurate. It is easy, the production and assembly are faster, and it also ensures that the second sealing ring will not be displaced, ensuring an excellent sealing effect.

4. The lower inner wall of the lens barrel of the present invention is provided with a boss protruding toward the center, and the rear lens group is loaded from the upper part of the lens barrel and pressed against the boss. The boss plays the role of limit and positioning, which makes the assembly of the vehicle lens faster and improves the production efficiency.

5. The utility model has the advantages of simple structure, low cost, convenient manufacture, and is suitable for popularization.

【Description of drawings】

Fig. 1 is a sectional view of the utility model;

Fig. 2 is the enlarged view of place A in Fig. 1;

【detailed description】

Below in conjunction with accompanying drawing, the utility model will be further described:

A vehicle-mounted lens, comprising a lens barrel 1, the lens barrel 1 is provided with a rear lens group 2, and the rear lens group 2 is provided with a front lens group 3 near the object side, and the front lens group 3 A first sealing ring 4 for waterproofing is provided between the lens barrel 1, and the lens barrel 1 is also provided with a screw fit to make the front lens group 3 squeeze the first sealing ring 4 so that the front lens group 3 The lens cap 5 that is closely connected with the lens barrel 1 is provided with a through hole 6 for the front lens group 3 to be exposed on the lens cap 5, and there is also a rotation between the lens cap 5 and the lens barrel 1. The second sealing ring 7 used for waterproofing is squeezed when mating. Therefore, the second sealing ring 7 is assembled between the lens cap 5 and the lens barrel 1, cooperates with the first sealing ring 4 to achieve a double-layer waterproof effect, and also does not affect the appearance. The lens cap 5 and the lens barrel 1 will not be interfered with. It makes up for the double-layer waterproof performance that the current wide-angle vehicle lens with small size and high waterproof level requirements cannot achieve. The double waterproof performance achieved by the cooperation of the first sealing ring 4 and the second sealing ring 7 improves the waterproof level of the lens, and ensures the lens The durability of long-term use in the natural environment improves the life of the lens and the quality of the lens. It is suitable for all wide-angle vehicle lenses with high waterproof level and relatively small size.

The front lens group 3 is composed of one lens.

The lens barrel 1 is provided with an annular groove 8 , and the first sealing ring 4 is arranged in the annular groove 8 and is in close contact with the end surface of the front lens group 3 .

The second sealing ring 7 is arranged between the end of the lens barrel 1 and the bottom surface 5 a of the lens cap 5 , and is in contact with the side wall 3 a of the front lens group 3 . The second sealing ring 7 is in direct contact with the lens cap 5, the lens barrel 1, and the front lens group 3, so the sealing effect is better and the waterproof effect is good.

The end of the lens barrel 1 is provided with a concave platform 10 recessed downward, the side wall 3a of the front lens group 3 cooperates with the concave platform 10 to form an annular groove 11, and the second sealing ring 7 Set in the annular groove 11. When the vehicle-mounted lens is assembled, after the front lens group 3 is put in, the side wall 3a of the front lens group 3 and the concave platform 10 form an annular groove 11, which is convenient for the subsequent second sealing ring 7 to be directly put into the annular groove 11, so that the first The assembly and positioning of the second sealing ring 7 is easier, the production and assembly is faster, and it is also ensured that the second sealing ring 7 will not be displaced, ensuring a good sealing effect.

The lower inner wall of the lens barrel 1 is provided with a boss 9 protruding toward the center, and the rear lens group 2 is loaded from the upper part of the lens barrel 1 and pressed against the boss 9 .

The rear lens group 2 includes a first lens 21, a first spacer 22, a second lens 23, a second spacer 24, a third lens 25 and a fourth lens 26 arranged sequentially from the object side to the image side, so The third lens 25 and the fourth lens 26 are glued together, and the fourth lens 26 is placed on the boss 9 . When assembling, the cemented lens composed of the fourth lens 26 and the third lens 25, the second spacer 24, the second lens 23, the first spacer 22 and the first lens 21 are put in order from the top of the lens barrel 1, and the fourth The lens 26 is supported on the boss 9. Therefore, the boss 9 plays a role of limiting and positioning the rear lens group 2 when the vehicle-mounted lens is assembled, making the vehicle-mounted lens assembly faster and improving production efficiency.

The front lens group 3 includes a protruding portion 3b protruding into the through hole 6 and a step portion 3c that protrudes from the outer wall of the protruding portion 3b and forms a step with the protruding portion 3b. The lens cap 5 and the lens barrel 1. The bottom surface 5a of the lens cap 5 mentioned above is in contact with the stepped portion 3c when screwed on. When the lens cap 5 is screwed to the lens barrel 1, the bottom surface 5a of the lens cap 5 is in contact with the step portion 3c of the front lens group 3, thereby pushing the front lens group 3 to approach the rear lens group 2 in the lens barrel 1, where During the process, the first sealing ring 4 and the second sealing ring 7 are squeezed to ensure the sealed connection and achieve the required double waterproof effect.

Claims (8)

1. A vehicle-mounted lens, characterized in that: it comprises a lens barrel (1), the lens barrel (1) is provided with a rear lens group (2), and the rear lens group (2) is close to the object side side A front lens group (3) is provided, and a first sealing ring (4) for waterproofing is provided between the front lens group (3) and the lens barrel (1), and the lens barrel (1) is also provided with There is a lens cap (5) that is screwed and matched to make the front lens group (3) squeeze the first sealing ring (4) so that the front lens group (3) is tightly connected with the lens barrel (1). The lens cap (5) is provided with the through hole (6) that exposes for front lens group (3), also is provided with between described lens cap (5) and lens barrel (1) and is squeezed when the two are screwed together. And the second sealing ring (7) that is used for waterproofing. 2. The vehicle lens according to claim 1, characterized in that: the front lens group (3) is composed of one lens. 3. The vehicle lens according to claim 1, characterized in that: said lens barrel (1) is provided with a ring groove (8), and said first sealing ring (4) is arranged in the ring groove (8) Inside and in close contact with the end face of the front lens group (3). 4. The vehicle-mounted lens according to claim 2, characterized in that: the second sealing ring (7) is arranged between the end of the lens barrel (1) and the bottom surface (5a) of the lens cap (5), and Contact with the side wall (3a) of the front lens group (3). 5. The vehicle-mounted lens according to claim 4, characterized in that: the end of the lens barrel (1) is provided with a concave platform (10) recessed to the bottom, and the front lens group (3) The side wall (3a) cooperates with the concave platform (10) to form an annular groove (11), and the second sealing ring (7) is arranged in the annular groove (11). 6. The vehicle-mounted lens according to claim 1, characterized in that: the lower inner wall of the lens barrel (1) is provided with a boss (9) protruding toward the center, and the rear lens group (2) Load it from the top of the lens barrel (1) and press it on the boss (9). 7. The vehicle-mounted lens according to claim 6, characterized in that: the rear lens group (2) comprises a first lens (21), a first spacer (22), The second lens (23), the second spacer (24), the third lens (25) and the fourth lens (26), the third lens (25) and the fourth lens (26) are glued together, and The fourth lens (26) rests on the boss (9). 8. The vehicle-mounted lens according to claim 2, characterized in that: the front lens group (3) includes a protruding portion (3b) protruding into the through hole (6) and a protruding portion (3b) protruding outward ) outer wall and form a stepped portion (3c) with the protruding portion (3b), when the lens cap (5) is screwed to the lens barrel (1), the bottom surface (5a) of the lens cap (5) and The step portion (3c) is contact-fit.