Projection optical imaging lens group with quick-assembly structure

Abstract

The utility model discloses a projection optical imaging lens group with a fast assembly structure, which comprises a fixed base, two sides of the inner wall of the fixed base are provided with assembly holes, a projection shell is arranged in the fixed base, the bottom end of the inner wall of the projection shell is fixedly provided with an objective lens group, and the middle part of the inner wall of the projection shell is fixedly provided with a lens group. The projection shell is fixedly provided with a collimating lens group located above the lens group, and the top ends of the two sides of the inner wall of the projection shell are both provided with adjusting grooves. According to the projection optical imaging lens group with the fast-assembly structure, through the arrangement of the fast-assembly piece and the fast-assembly assembly, the direction plate is subjected to angle deflection along the angle seat; the suction position of the suction cup is adjusted, the optical imaging lens set is conveniently and rapidly sucked and fixed, the lens shell is clamped into the assembly hole through the assembly block to complete combination and fixation of the optical imaging lens set, a traditional fixing mode is replaced, the optical imaging lens set is conveniently and rapidly assembled and fixed, and the flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of optical imaging lens groups, and particularly relates to an optical imaging lens group for projection with a quick installation structure. Background Technique

[0002] The core components of a projector include a lens, a slide, a screen, a light source, a condenser lens, a reflector, etc. Among them, the lens plays a crucial role. It is equivalent to a convex lens, responsible for collecting light and focusing it on the screen to form a clear image. This process involves the collection, focusing, and projection of light, similar to the imaging principle of the human eye, that is, light is focused on the retina through a lens to form vision. The optical imaging lens group usually consists of several lenses, and their order is roughly as follows: objective lens: the lens closest to the screen, responsible for focusing light on the screen; lens group: usually including several lenses, used for light collection and correction; collimator group: guiding light to the objective lens; reflector, if reflection technology is adopted, projecting light in the reverse direction.

[0003] However, the traditional optical imaging lens group has the following disadvantages:

[0004] When installing the traditional optical imaging lens group, the user needs to use equipment to screw the optical imaging lens group to fix it in the projector. Such a fixed installation method is very complex and increases the installation time of the optical imaging lens group. Content of the Utility Model

[0005] The purpose of the utility model is to provide an optical imaging lens group for projection with a quick installation structure, so as to solve the problem that when installing the traditional optical imaging lens group, the user needs to use equipment to screw the optical imaging lens group to fix it in the projector, and such a fixed installation method is very complex and increases the installation time of the optical imaging lens group mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an optical imaging lens group for projection with a quick installation structure, including a fixed base, assembly holes are opened on both sides of the inner wall of the fixed base, a projection shell is installed inside the fixed base, an objective lens group is fixedly installed at the bottom end of the inner wall of the projection shell, a lens group is fixedly installed in the middle of the inner wall of the projection shell, a collimator group is fixedly installed above the lens group on the projection shell, adjustment slots are opened at the top ends of both sides of the inner wall of the projection shell, a reflector mechanism is installed between the two adjustment slots, quick installation parts are fixedly installed at the bottom ends of both sides of the projection shell, installation slots are opened at the bottom ends of both sides of the fixed base, and quick installation components are installed inside the two installation slots.

[0007] Preferably, the mirror mechanism includes a mirror body and two self-locking telescopic rods. The two sides of the mirror body are respectively connected to the fixed ends of the two self-locking telescopic rods. Adjusting blocks are installed at the movable ends of the two self-locking telescopic rods. Magnetic strips are fixedly installed on the sides of the two adjusting blocks facing away from each other. The user slides the adjusting blocks along the adjustment slots, and the two adjusting blocks are not on the same straight line, so as to adjust the reflection angle of the mirror body.

[0008] Preferably, the two adjusting blocks are respectively slidably connected to the two adjusting slots, and the mirror mechanism is installed on the adjustment slots through the adjusting blocks.

[0009] Preferably, both of the quick mounting components include an angle seat and a direction plate. One end of the direction plate is rotatably connected to the inside of the angle seat. A suction cup is fixedly installed at the bottom end of the direction plate. A support spring is fixedly installed at the top end of the direction plate. The top end of the support spring is fixedly connected to the side of the installation slot facing it. One side of the angle seat is fixedly connected to the side of the installation slot facing it. The user deflects the direction plate along the angle seat to adjust the position of the suction cup. The suction cup has adsorption property, and the suction cup adsorbs and quickly installs the optical imaging lens group at the using place.

[0010] Preferably, both of the quick mounting parts include a length shell and a sliding rod. An activity slot is formed on one side of the length shell. One side of the inner wall of the activity slot is fixedly installed with a connecting spring. The side of the connecting spring away from the activity slot is fixedly connected to the side of the sliding rod facing it. An assembly block is fixedly installed on the other side of the sliding rod. The two assembly holes are respectively arranged corresponding to the two assembly blocks. The opposite sides of the two length shells are both fixedly connected to the projection shell. The user presses the sliding rod, and the sliding rod slides relative to the length shell, and the sliding rod presses the connecting spring from one side. The connecting spring has elasticity, and the connecting spring deforms elastically to buffer the extrusion force, so that the assembly block is stuck into the assembly hole, and the assembly of the projection shell and the fixed base is completed.

[0011] Preferably, a sealing ring is sleeved at the connection between the fixed base and the projection shell. The sealing ring is made of rubber material. The sealing ring fills the gap generated at the connection between the fixed base and the projection shell, and improves the sealing property of the optical imaging lens group itself.

[0012] Preferably, positioning pieces are fixedly installed on both sides of the top end of the fixed base. Positioning holes are formed in the middle of the two positioning pieces. The user can screw a screw through the positioning hole to fix the positioning piece, and complete the quick installation and fixation of the optical imaging lens group.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting up a quick-installation part and a quick-installation assembly, the direction plate deflects at an angle along the angle seat to adjust the adsorption position of the suction cup, facilitating the quick adsorption and fixation of the optical imaging lens group. The lens housing is combined and fixed with the optical imaging lens group by clamping the assembly block into the assembly hole, replacing the traditional fixing method, facilitating the quick assembly and fixation of the optical imaging lens group, and having high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a cross-sectional view of the present utility model;

[0015] Figure 2 is a side view of the present utility model;

[0016] Figure 3 is a cross-sectional view of the quick-installation part of the present utility model;

[0017] Figure 4 is a side view of the reflector mechanism of the present utility model;

[0018] Figure 5 is an exploded view of the present utility model.

[0019] In the figure: 1, fixed base; 2, positioning piece; 3, positioning hole; 4, assembly hole; 5, sealing ring; 6, objective lens group; 7, projection housing; 8, quick-installation part; 81, length housing; 82, connecting spring; 83, movable groove; 84, sliding rod; 85, assembly block; 9, adjustment groove; 10, lens group; 11, collimating lens group; 12, reflector mechanism; 121, adjustment block; 122, magnetic strip; 123, self-locking telescopic rod; 124, reflector body; 13, installation groove; 14, quick-installation assembly; 141, suction cup; 142, direction plate; 143, support spring; 144, angle seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0021] Please refer to Figures 1-5, the present utility model provides an optical imaging lens group for projection with a quick installation structure, including a fixed base 1. Assembly holes 4 are opened on both sides of the inner wall of the fixed base 1. A projection shell 7 is installed inside the fixed base 1. An objective lens group 6 is fixedly installed at the bottom end of the inner wall of the projection shell 7. A lens group 10 is fixedly installed in the middle of the inner wall of the projection shell 7. A collimating lens group 11 is fixedly installed above the lens group 10 on the projection shell 7. Adjustment slots 9 are opened at the top ends of both sides of the inner wall of the projection shell 7. A reflecting mirror mechanism 12 is installed between the two adjustment slots 9. Quick installation parts 8 are fixedly installed at the bottom ends of both sides of the projection shell 7. Installation slots 13 are opened at the bottom ends of both sides of the fixed base 1. Quick installation components 14 are installed inside the two installation slots 13.

[0022] The reflecting mirror mechanism 12 includes a reflecting mirror body 124 and two self-locking telescopic rods 123. The two sides of the reflecting mirror body 124 are respectively connected to the fixed ends of the two self-locking telescopic rods 123. Adjustment blocks 121 are installed at the movable ends of the two self-locking telescopic rods 123. Magnetic strips 122 are fixedly installed on the sides of the two adjustment blocks 121 facing away from each other. The user slides the adjustment blocks 121 along the adjustment slots 9, and the two adjustment blocks 121 are not on the same straight line, so as to adjust the reflection angle of the reflecting mirror body 124.

[0023] The two adjustment blocks 121 are respectively slidably connected to the two adjustment slots 9. The reflecting mirror mechanism 12 is installed on the adjustment slots 9 through the adjustment blocks 121.

[0024] Both of the two quick installation components 14 include an angle seat 144 and a direction plate 142. One end of the direction plate 142 is rotatably connected to the inside of the angle seat 144. A suction cup 141 is fixedly installed at the bottom end of the direction plate 142. A support spring 143 is fixedly installed at the top end of the direction plate 142. The top end of the support spring 143 is fixedly connected to the side of the installation slot 13 facing it. One side of the angle seat 144 is fixedly connected to the side of the installation slot 13 facing it. The user deflects the direction plate 142 along the angle seat 144 to adjust the position of the suction cup 141. The suction cup 141 has adsorption property, and the suction cup 141 adsorbs and quickly installs the optical imaging lens group at the use location.

[0025] The two quick - mounting parts 8 both include a length shell 81 and a sliding rod 84. An activity groove 83 is formed on one side of the length shell 81. One side of the inner wall of the activity groove 83 is fixedly installed with a connecting spring 82. The side of the connecting spring 82 away from the activity groove 83 is fixedly connected to the side of the sliding rod 84 facing it. The other side of the sliding rod 84 is fixedly installed with an assembling block 85. The two assembling holes 4 are respectively arranged corresponding to the two assembling blocks 85. The opposite sides of the two length shells 81 are both fixedly connected to the projection shell 7. The user presses the sliding rod 84, and the sliding rod 84 slides relative to the length shell 81. And the sliding rod 84 presses the connecting spring 82 from one side. The connecting spring 82 has elasticity, and the connecting spring 82 undergoes elastic deformation to buffer the extrusion force, so that the assembling block 85 is snapped into the assembling hole 4, and the assembly of the projection shell 7 and the fixed base 1 is completed.

[0026] A sealing ring 5 is sleeved at the connection between the fixed base 1 and the projection shell 7. The sealing ring 5 is made of rubber material. The sealing ring 5 fills the gap generated at the connection between the fixed base 1 and the projection shell 7, improving the sealing performance of the optical imaging lens group itself.

[0027] Positioning pieces 2 are fixedly installed on both sides of the top of the fixed base 1. Positioning holes 3 are formed in the middle of the two positioning pieces 2. The user can screw a screw through the positioning hole 3 to fix the positioning piece 2, completing the quick - mounting fixation of the optical imaging lens group.

[0028] When the embodiment of the present application is in use: The user can screw a screw through the positioning hole 3 to fix the positioning piece 2, completing the quick - mounting fixation of the optical imaging lens group. Or, the user adjusts the position of the suction cup 141 along the deflection direction of the angle seat 144 of the deflecting plate 142. The suction cup 141 has adsorption property, and the suction cup 141 adsorbs and quickly mounts the optical imaging lens group at the use location. The user slides the adjustment block 121 along the adjustment groove 9, and the two adjustment blocks 121 are not on the same straight line, adjusting the reflection angle of the reflector body 124. The reflector body 124 projects the light in the reverse direction, enabling the light to be projected onto an object. The lens group 10 usually consists of multiple lenses and is used to correct light. The collimator lens group 11 guides the light to the lens group of the objective lens, and its function is to control the direction of the light. The objective lens group 6 focuses the light on the projection screen.

[0029] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacement on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An optical imaging lens group for projection with a quick installation structure, including a fixed base (1), characterized in that: On both sides of the inner wall of the fixed base (1), assembly holes (4) are provided. Inside the fixed base (1), a projection housing (7) is installed. At the bottom end of the inner wall of the projection housing (7), an objective lens group (6) is fixedly installed. In the middle of the inner wall of the projection housing (7), a lens group (10) is fixedly installed. On the projection housing (7), a collimating lens group (11) is fixedly installed above the lens group (10). At the top ends of both sides of the inner wall of the projection housing (7), adjustment grooves (9) are provided. Between the two adjustment grooves (9), a reflecting mirror mechanism (12) is installed. At the bottom ends of both sides of the projection housing (7), quick-installation parts (8) are fixedly installed. At the bottom ends of both sides of the fixed base (1), installation grooves (13) are provided. Inside the two installation grooves (13), quick-installation components (14) are installed.

2. The optical imaging lens group for projection with a quick installation structure according to claim 1, characterized in that: The reflecting mirror mechanism (12) includes a reflecting mirror body (124) and two self-locking telescopic rods (123). The two sides of the reflecting mirror body (124) are respectively connected to the fixed ends of the two self-locking telescopic rods (123). The movable ends of the two self-locking telescopic rods (123) are both installed with adjustment blocks (121). On the opposite sides of the two adjustment blocks (121), magnetic strips (122) are fixedly installed.

3. The optical imaging lens group for projection with a quick installation structure according to claim 2, characterized in that: The two adjustment blocks (121) are respectively slidably connected to the two adjustment grooves (9).

4. The optical imaging lens group for projection with a quick installation structure according to claim 1, wherein: The two quick-installation components (14) both include an angle seat (144) and a direction plate (142). The inside of the angle seat (144) is rotationally connected to one end of the direction plate (142). At the bottom end of the direction plate (142), a suction cup (141) is fixedly installed. At the top end of the direction plate (142), a support spring (143) is fixedly installed. The top end of the support spring (143) is fixedly connected to the side opposite to the installation groove (13). One side of the angle seat (144) is fixedly connected to the side opposite to the installation groove (13).

5. The optical imaging lens group for projection with a quick installation structure according to claim 1, characterized in that: The two quick-installation parts (8) both include a length shell (81) and a sliding rod (84). On one side of the length shell (81), an activity groove (83) is provided. On one side of the inner wall of the activity groove (83), a connection spring (82) is fixedly installed. The side of the connection spring (82) away from the activity groove (83) is fixedly connected to the side opposite to the sliding rod (84). On the other side of the sliding rod (84), an assembly block (85) is fixedly installed. The two assembly holes (4) are respectively arranged corresponding to the two assembly blocks (85). The opposite sides of the two length shells (81) are both fixedly connected to the projection housing (7).

6. The optical imaging lens group for projection with a quick-installation structure according to claim 1, wherein: A sealing ring (5) is sleeved at the connection part between the fixed base (1) and the projection housing (7).

7. The optical imaging lens group for projection with a quick installation structure according to claim 1, characterized in that: On both sides of the top end of the fixed base (1), positioning pieces (2) are fixedly installed. In the middle of the two positioning pieces (2), positioning holes (3) are provided.

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