Projection lens convenient to install

Abstract

The utility model relates to the technical field of projection lenses, in particular to a projection lens convenient to install. The projection lens comprises a projection lens body, the arc surface of the projection lens body is provided with an auxiliary device, the auxiliary device comprises a round rod, the round rod is fixedly connected with the arc surface of the projection lens body, and one end, far away from the projection lens body, of the round rod is fixedly connected with a square block. Two sliding blocks are fixedly connected to the surface of the square block, a mounting seat is slidably connected to the surface of the square block, two sliding grooves are formed in the surface of the mounting seat, the sliding blocks are slidably connected with the inner surfaces of the sliding grooves of the mounting seat, and two fixing rods are fixedly connected to the surface of the mounting seat; the arc surface of the fixing rod is slidably connected with an operation plate. The problems that time and labor are wasted when a worker installs the projection lens body, and the installation efficiency is low when the worker installs the projection lens body are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection lenses, in particular to a projection lens that is easy to install. Background Art

[0002] The projection lens refers specifically to the lens used in micro-display projectors. It is the key factor affecting the quality of the projection image. Different lenses directly affect the clarity, color, brightness, uniformity, etc. of the projected image.

[0003] A Chinese patent application CN202221319213.7 discloses a teaching projector that can automatically adjust the brightness. The key points of its technical solution are: this teaching projector that can automatically adjust the brightness is equipped with a projector lens, a light sensor, a projector processor, and a photoelectric converter. When the user turns on the teaching projector body, the light sensor will sense the brightness of the light in the classroom, and the photoelectric converter will output the obtained data to the projector processor. The projector processor will adjust the brightness of the light source emitted by the projector lens according to the comparison of the brightness values, thereby realizing the adjustment function of the teaching projector that can automatically adjust the brightness.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when workers install the projection lens body, they often need to use screws to fix it, which makes the installation time-consuming and labor-intensive, resulting in low installation efficiency when workers install the projection lens body; therefore, to address the above-mentioned problems, a projection lens that is easy to install is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that workers have to spend time and effort to install the projection lens body, resulting in low installation efficiency, and to provide a projection lens that is easy to install.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a projection lens that is easy to install, including a projection lens body, the arc surface of the projection lens body is provided with an auxiliary device, the auxiliary device includes a round rod, the round rod is fixedly connected to the arc surface of the projection lens body, the end of the round rod away from the projection lens body is fixedly connected to a square block, the surface of the square block is fixedly connected to two sliding blocks, the surface of the square block is slidably connected to a mounting seat, the surface of the mounting seat is provided with two sliding grooves, and the sliding block is slidably connected to the inner surface of the mounting seat sliding groove.

[0007] The effect achieved by the above components is: by setting up auxiliary devices, it is convenient for workers to install and disassemble the projection lens body, avoiding the time and effort of workers in installing the projection lens body, resulting in low installation efficiency of workers when installing the projection lens body, and improving the practicality of the equipment.

[0008] Preferably, two fixing rods are fixedly connected to the surface of the mounting seat, an operating plate is slidably connected to the arc surface of the fixing rod, an insertion rod is fixedly connected to the side of the operating plate close to the mounting seat, and two slots are provided on the surface of the square block, and the size of the insertion rod is adapted to the size of the square block slot.

[0009] The effect achieved by the above components is that the insertion rod can fix the square block, which not only prevents the projection lens body from sliding during use, but also is simple and convenient to operate, allowing workers to quickly complete the installation and removal of the projection lens body, saving a lot of time.

[0010] Preferably, a groove is formed on the arc surface of the fixing rod, and a blocking block is fixedly connected to the inner surface of the groove of the fixing rod.

[0011] The effect achieved by the above components is that the blocking block blocks the sliding of the operating panel, thereby preventing the operator from applying excessive force when moving the operating panel, causing the operating panel to slip off the arc surface of the fixing rod.

[0012] Preferably, two fixing blocks are fixedly connected to the surface of the mounting seat, a spring is fixedly connected to the surface of the fixing block, one end of the spring is fixedly connected to a limiting block, and the limiting block is slidably connected to the surface of the mounting seat.

[0013] The effect achieved by the above components is: the limit block can fix the operating panel, preventing the operating panel from moving the insertion rod due to gravity when the staff moves the square block, causing the square block to hit the insertion rod during movement, causing the insertion rod to be easily damaged.

[0014] Preferably, the arc surface of the projection lens body is provided with a protective device, which includes a fixed frame, which is fixedly connected to the arc surface of the projection lens body, a rotating rod rotatably connected to the surface of the fixed frame, and a protective plate is fixedly connected to the arc surface of the rotating rod.

[0015] The effect achieved by the above components is: by providing a protective device, the surface of the projection lens body can be protected, thereby preventing dust from adhering to the surface of the projection lens body when the projection lens body is not in use, causing the projection lens body to appear blurred during projection, thereby improving the practicality of the equipment.

[0016] Preferably, the arc surface of the fixed frame is fixedly connected to a connecting rod, and the end of the connecting rod away from the fixed frame is fixedly connected to a connecting plate. A limiting rod is slidably inserted in the connecting plate, and a limiting groove is provided on the arc surface of the protective plate. The size of the limiting groove of the protective plate is adapted to the size of the limiting rod.

[0017] The effect achieved by the above components is that the limit rod can fix the protective plate, preventing the staff from shaking when moving the projection lens body, causing the protective plate to be passively opened, resulting in a reduction in the protective effect of the protective plate.

[0018] Preferably, the arc surface of the rotating rod is sleeved with two torsion springs, and the two ends of the torsion springs are fixedly connected to the fixing frame and the protective plate respectively.

[0019] The effect achieved by the above components is that the torsion force of the torsion spring can automatically open the protective plate, and at the same time can limit the rotation of the protective plate, thereby preventing the protective plate from rotating when the staff is using the projection lens body, thereby affecting the normal use of the projection lens body.

[0020] In summary, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, by providing an auxiliary device, it is convenient for workers to install and disassemble the projection lens body, avoiding the time and effort of workers in installing the projection lens body, which causes low installation efficiency of workers when installing the projection lens body, and improving the practicality of the equipment.

[0022] 2. In the present invention, by providing a protective device, the surface of the projection lens body can be protected, thereby preventing dust from adhering to the surface of the projection lens body when the projection lens body is not in use, causing the projection lens body to appear blurred during projection, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the auxiliary device in the utility model;

[0025] Figure 3 For this utility model Figure 2 A magnified view of point A;

[0026] Figure 4 For this utility model Figure 2 Rear view;

[0027] Figure 5 It is a structural diagram of the protective device in the utility model;

[0028] Figure 6 For this utility model Figure 5 Enlarged view of point B;

[0029] Figure 7 For this utility model Figure 5 Enlarged view of point C.

[0030] Legend: 1. Projection lens body; 2. Auxiliary device; 3. Protective device; 201. Round rod; 202. Square block; 203. Sliding block; 204. Mounting seat; 205. Fixed rod; 206. Operating panel; 207. Insert rod; 208. Blocking block; 209. Fixed block; 210. Spring; 211. Limiting block; 31. Fixed frame; 32. Rotating rod; 33. Protective plate; 34. Connecting rod; 35. Connecting plate; 36. Limiting rod; 37. Torsion spring. DETAILED DESCRIPTION

[0031] Reference Figure 1 As shown, the utility model provides a technical solution: a projection lens that is easy to install, including a projection lens body 1, an auxiliary device 2 is provided on the arc surface of the projection lens body 1, and the auxiliary device 2 is provided to facilitate the installation and removal of the projection lens body 1 by the staff, thereby avoiding the staff from wasting time and effort when installing the projection lens body 1, resulting in low installation efficiency when the staff installs the projection lens body 1, and improving the practicality of the equipment. The arc surface of the projection lens body 1 is provided with a protective device 3, and the protective device 3 is provided to achieve the effect of protecting the surface of the projection lens body 1, thereby avoiding dust adhering to the surface of the projection lens body 1 when the projection lens body 1 is not in use, resulting in blurred images when the projection lens body 1 is projected, and improving the practicality of the equipment.

[0032] The specific settings and functions of the auxiliary device 2 and the protective device 3 are described in detail below.

[0033] Reference Figure 2 、 Figure 3 and Figure 4As shown, in this embodiment: the auxiliary device 2 includes a round rod 201, which is fixedly connected to the arc surface of the projection lens body 1, and a square block 202 is fixedly connected to the end of the round rod 201 away from the projection lens body 1. Two sliding blocks 203 are fixedly connected to the surface of the square block 202, and a mounting seat 204 is slidably connected to the surface of the square block 202. The surface of the mounting seat 204 has two sliding grooves. The sliding blocks 203 are slidably connected to the inner surfaces of the sliding grooves of the mounting seat 204, and two fixed rods 205 are fixedly connected to the surface of the mounting seat 204. The arc surface of the fixed rod 205 is slidably connected to the operating panel 206. The side of the operating panel 206 close to the mounting seat 204 is fixedly connected to the insertion rod 207. The surface of the square block 202 has two slots. , the size of the insertion rod 207 is adapted to the size of the slot of the square block 202. When the staff needs to install the projection lens body 1, the operating plate 206 is moved, and the operating plate 206 slides on the arc surface of the fixed rod 205. The operating plate 206 drives the insertion rod 207 to move. When the operating plate 206 moves to the appropriate position, the projection lens body 1 is moved, and the projection lens body 1 drives the round rod 201 to move. The round rod 201 drives the square block 202 to move. The square block 202 drives the sliding block 203 to slide on the inner surface of the sliding groove of the mounting seat 204. When the square block 202 moves to the appropriate position, the insertion rod 207 is located directly above the slot of the square block 202. The operating plate 206 is moved, and the operating plate 206 drives the insertion rod 207 to move. When the insertion rod 207 is inserted When the projection lens body 1 is removed, the operator moves the operating plate 206, which drives the rod 207 to move. When the projection lens body 1 is removed, the operator can move the operating plate 206 and the operating plate 206 drives the rod 207 to move. When the surface of the operating plate 206 contacts the blocking block 208, the operator can remove the projection lens body 1. When the lever 207 is completely disengaged from the inner surface of the slot of the square block 202, the lever 207 releases the fixation of the square block 202, and the staff can move the projection lens body 1 to remove the projection lens body 1. The blocking block 208 has the effect of blocking the sliding of the operating plate 206, thereby preventing the staff from using too much force when moving the operating plate 206, causing the operating plate 206 to slip off the arc surface of the fixing rod 205. The surface of the mounting seat 204 is fixedly connected to two fixing blocks 209, and the surface of the fixing block 209 is fixedly connected to a spring 210. One end of the spring 210 is fixedly connected to a limit block 211, and the limit block 211 is slidably connected to the surface of the mounting seat 204. When the staff needs to remove the projection lens body 1,Move the operating plate 206, which drives the insertion rod 207 to move. When the surface of the operating plate 206 contacts the blocking block 208, the insertion rod 207 is completely separated from the inner surface of the slot of the square block 202. The rebound force of the spring 210 drives the limit block 211 to slide on the surface of the mounting seat 204. When the limit block 211 moves between the operating plate 206 and the mounting seat 204, the limit block 211 fixes the operating plate 206. At this time, the staff can install the projection lens body 1 on the surface of the mounting seat 204. After the installation is completed, move the limit block 211, the spring 210 is compressed, and when the limit block 2 When the operating plate 206 is completely separated from the surface of the operating plate 206, the limit block 211 releases the fixation of the operating plate 206, and the operating plate 206 is moved, and the operating plate 206 drives the insertion rod 207 to move. When the insertion rod 207 is inserted into the inner surface of the slot of the square block 202, the insertion rod 207 fixes the square block 202. The limit block 211 achieves the effect of fixing the operating plate 206, preventing the operating plate 206 from driving the insertion rod 207 to move due to gravity when the staff moves the square block 202, causing the square block 202 to hit the insertion rod 207 during movement, causing the insertion rod 207 to be easily damaged.

[0034] Reference Figure 5 、 Figure 6 and Figure 7As shown, specifically, the protective device 3 includes a fixed frame 31, the fixed frame 31 is fixedly connected to the arc surface of the projection lens body 1, the surface of the fixed frame 31 is rotatably connected to a rotating rod 32, the arc surface of the rotating rod 32 is fixedly connected to a protective plate 33, the arc surface of the fixed frame 31 is fixedly connected to a connecting rod 34, the end of the connecting rod 34 away from the fixed frame 31 is fixedly connected to a connecting plate 35, a limiting rod 36 is slidably inserted in the connecting plate 35, and a limiting groove is provided on the arc surface of the protective plate 33. The size of the limiting groove matches the size of the limiting rod 36. When the projection lens body 1 is not in use, the protective plate 33 can be covered on the surface of the projection lens body 1. The protective plate 33 is rotated, and the protective plate 33 drives the rotating rod 32 to rotate on the surface of the fixed frame 31. When the protective plate 33 is rotated to the surface of the projection lens body 1, the limiting rod 36 is located in front of the limiting groove of the protective plate 33. When the limiting rod 36 is pushed, when the limiting rod 36 is inserted into the inner surface of the limiting groove of the protective plate 33, the limiting rod 36 is pressed against the protective plate 33. When the protective plate 33 is opened, the protective plate 33 is automatically opened by the torsion spring 37, and the protective plate 33 is prevented from being opened by the protective plate 33 when the protective plate 33 is opened.

[0035] Working principle: when the staff needs to install the projection lens body 1, the operating plate 206 is moved, and the operating plate 206 drives the insertion rod 207 to move. When the surface of the operating plate 206 contacts the blocking block 208, the rebound force of the spring 210 drives the limit block 211 to slide on the surface of the mounting seat 204. When the limit block 211 moves between the operating plate 206 and the mounting seat 204, the limit block 211 fixes the operating plate 206, and the projection lens body 1 is moved. The projection lens body 1 drives the round rod 201 to move, and the round rod 201 drives the square block 202 to move. The square block 202 drives the sliding block 203 to slide on the inner surface of the sliding groove of the mounting seat 204. When the square block 202 moves to the appropriate position, the insertion rod 207 is located directly above the slot of the square block 202. The limit block 211 is moved, and the spring 210 is compressed. When the limit block 211 is completely separated from the operating plate 206 When the surface of the projection block 202 is in contact with the stop block 208, the rod 207 is completely disengaged from the inner surface of the square block 202 slot, and the rebound force of the spring 210 drives the limit block 211 to slide on the surface of the mounting seat 204. When the limit block 211 moves between the operation plate 206 and the mounting seat 204, the limit block 211 fixes the operation plate 206, and the staff can remove the projection lens body 1.

[0036] When the projection lens body 1 is not in use, the protective plate 33 can be covered to the surface of the projection lens body 1, and the protective plate 33 is rotated. The protective plate 33 drives the rotating rod 32 to rotate on the surface of the fixed frame 31. When the protective plate 33 is rotated to the surface of the projection lens body 1, the limit rod 36 is located directly in front of the limit groove of the protective plate 33, and the limit rod 36 is pushed. When the limit rod 36 is inserted into the inner surface of the limit groove of the protective plate 33, the limit rod 36 fixes the protective plate 33. When the staff needs to open the protective plate 33, the limit rod 36 is pulled. When the limit rod 36 is completely disengaged from the inner surface of the limit groove of the protective plate 33, the limit rod 36 releases the fixation of the protective plate 33, and the torsion of the torsion spring 37 drives the protective plate 33 to rotate, and the protective plate 33 drives the rotating rod 32 to rotate on the surface of the fixed frame 31 until the protective plate 33 is fully opened.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A projection lens that is easy to install, comprising a projection lens body (1), characterized in that: The arc surface of the projection lens body (1) is provided with an auxiliary device (2), the auxiliary device (2) comprising a round rod (201), the round rod (201) being fixedly connected to the arc surface of the projection lens body (1), the end of the round rod (201) away from the projection lens body (1) being fixedly connected to a square block (202), the surface of the square block (202) being fixedly connected to two sliding blocks (203), the surface of the square block (202) being slidably connected to a mounting seat (204), the surface of the mounting seat (204) being provided with two sliding grooves, the sliding block (203) being slidably connected to the inner surface of the sliding groove of the mounting seat (204).

2. The projection lens that is easy to install according to claim 1, characterized in that: Two fixing rods (205) are fixedly connected to the surface of the mounting seat (204); an operating plate (206) is slidably connected to the arc surface of the fixing rod (205); an insertion rod (207) is fixedly connected to the side of the operating plate (206) close to the mounting seat (204); two slots are provided on the surface of the square block (202); and the size of the insertion rod (207) is adapted to the size of the slots of the square block (202).

3. The projection lens that is easy to install according to claim 2, characterized in that: The arc surface of the fixing rod (205) is provided with a groove, and the inner surface of the groove of the fixing rod (205) is fixedly connected with a blocking block (208).

4. The projection lens that is easy to install according to claim 1, characterized in that: Two fixed blocks (209) are fixedly connected to the surface of the mounting seat (204), a spring (210) is fixedly connected to the surface of the fixed block (209), one end of the spring (210) is fixedly connected to a limiting block (211), and the limiting block (211) is slidably connected to the surface of the mounting seat (204).

5. The projection lens that is easy to install according to claim 1, characterized in that: The arc surface of the projection lens body (1) is provided with a protective device (3), the protective device (3) comprising a fixed frame (31), the fixed frame (31) being fixedly connected to the arc surface of the projection lens body (1), the surface of the fixed frame (31) being rotatably connected to a rotating rod (32), and the arc surface of the rotating rod (32) being fixedly connected to a protective plate (33).

6. The projection lens that is easy to install according to claim 5, characterized in that: The arc surface of the fixed frame (31) is fixedly connected to a connecting rod (34), one end of the connecting rod (34) away from the fixed frame (31) is fixedly connected to a connecting plate (35), a limiting rod (36) is slidably inserted into the connecting plate (35), and a limiting groove is provided on the arc surface of the protective plate (33), and the size of the limiting groove of the protective plate (33) is adapted to the size of the limiting rod (36).

7. The projection lens that is easy to install according to claim 5, characterized in that: The arc surface of the rotating rod (32) is sleeved with two torsion springs (37), and the two ends of the torsion spring (37) are fixedly connected to the fixed frame (31) and the protective plate (33) respectively.

Images