Projection lens connector for precision equipment
By adopting a slidingly mounted protective plate and spring clamp structure in the connection joint and combining the sealing ring design, the problem of corrosion of the connection joint in humid environments is solved, the sealing and durability are improved, and the signal transmission stability is ensured.
Patent Information
- Application Number
- CN202422291999.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Existing connection joints are susceptible to corrosion in wet or corrosive environments, resulting in reduced connection strength and durability.
The first and second protective plates that are slidingly installed are adopted to achieve a tight fixation between the lens body and the joint body through the cooperation of the clamp and the spring, and the sealing ring and insert plate are used to enhance the sealing property to prevent moisture from entering.
It improves the sealing of the connection joint, prevents moisture from entering, enhances the strength and durability of the connection, ensures the stability of signal transmission and the effectiveness of the equipment.
Smart Images
Figure CN223092278U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connection joints, in particular to a connection joint for a projection lens of a precision device. Background Art
[0002] The connection joint is a key component to achieve a stable connection between the projection lens and the main body of the precision device. It ensures the accuracy and stability of signal transmission, and has a direct impact on the image quality and accuracy of the projection. If the connection joint has poor quality, it may cause problems such as blurred images, color distortion, and signal interruption, seriously affecting the use effect of the precision device. Characteristics of the connection joint: High precision: To meet the requirements of precision devices, the connection joint usually has a high-precision manufacturing process, which can ensure a tight fit with the projection lens and the device main body, reducing errors. Strong stability: It can maintain a stable connection under various environmental conditions and is not easy to loosen or fall off. For example, during the operation of the device, the connection quality will not be affected by factors such as vibration and temperature change. Good signal transmission performance: It has low signal loss and high anti-interference ability. Durability.
[0003] In the prior art, some connection joints use bolts to connect the connection joint with the projection lens. Because using bolt connection is relatively firm and reliable, but if it is used in a humid or corrosive environment, the moisture in the air may contact the bolts, which may cause the bolts to be corroded, thereby reducing the connection strength and durability. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problem in the prior art that if it is used in a humid or corrosive environment, the moisture in the air may contact the bolts, which may cause the bolts to be corroded, thereby reducing the connection strength and durability, and to propose a connection joint for a projection lens of a precision device.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A connection joint for a projection lens of a precision device, including a joint body. A storage groove is opened at the top of the joint body. A first protection plate and a second protection plate are slidably installed inside the storage groove. Two connection grooves are opened at one end of the first protection plate close to the second protection plate. Two connection blocks are fixedly installed at one end of the second protection plate close to the first protection plate. The two connection blocks are respectively slidably connected with the two connection grooves. Card slots are opened on the opposite sides of the first protection plate and the second protection plate. Two limiting grooves are symmetrically opened on the inner wall of the storage groove. Springs are fixedly installed on the inner walls of the two limiting grooves. One end of each spring is fixedly installed with a clamping block. Through holes are penetrated through the inner walls of the two limiting grooves. Pulling plates are fixedly installed on the tops of the two clamping blocks. The two pulling plates are respectively slidably connected with the two through holes. A lens body is slidably installed inside the joint body.
[0006] Preferably, insertion plates are fixedly installed at the bottoms of the first protective plate and the second protective plate, insertion slots are formed in the inner wall of the storage groove, and sealing rings are fixedly installed on the inner walls of the insertion slots.
[0007] Preferably, a plurality of uniformly distributed second threaded holes are formed in the inner wall of the storage groove, a connecting ring is fixedly installed on the outer wall of the lens body, a plurality of uniformly distributed first threaded holes are formed through the top of the connecting ring, and bolt bodies are threadedly connected to the inner walls of the first threaded holes.
[0008] Preferably, a guiding block is fixedly installed at the bottom of the connecting ring, and a guiding groove is formed in the inner wall of the storage groove.
[0009] Preferably, first baffles are fixedly installed on the outer walls of the two pull plates, and second baffles are fixedly installed at the ends of the pull plates away from the first baffles.
[0010] Preferably, the outer walls of the two clamping blocks are respectively fitted with the inner walls of the two clamping grooves.
[0011] Preferably, handles are fixedly installed at the tops of the first protective plate and the second protective plate.
[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0013] 1. In the present utility model, when the lens body and the joint body are fixed together, the staff inserts the two connecting blocks into the two connecting grooves respectively. At this time, the inner walls of the first protective plate and the second protective plate are in contact with the outer wall of the lens body. Then, the first protective plate and the second protective plate are pushed down. The staff pulls the two pull plates, and the pull plates drive the clamping blocks into the limiting grooves, and the springs are compressed. When the clamping grooves move beside the clamping blocks, the staff releases the pull plates, and the elastic force of the springs pushes the clamping blocks into the clamping grooves. At this time, the first protective plate and the second protective plate are fixed, and the outer walls of the first protective plate and the second protective plate are in contact with the inner wall of the storage groove. Therefore, the first protective plate and the second protective plate can prevent moisture from entering the storage groove and improve the sealing performance.
[0014] 2. In the present utility model, when the first protective plate and the second protective plate are fixed, the two insertion plates both enter the insertion slots, the inclined surfaces of the insertion plates are in contact with the sealing rings, and the insertion plates squeeze the sealing rings. When the insertion plates completely enter the insertion slots, the reaction force given by the sealing rings to the insertion plates reduces the gap between the two, further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is an overall three-dimensional view of an integrated connection joint for a projection lens of a precision device proposed by the present utility model;
[0016] Figure 2The present utility model provides a three-dimensional view of a first protective plate for a connection joint of a projection lens of a precision device;
[0017] Figure 3 The present utility model provides a three-dimensional view of a connection ring for a connection joint of a projection lens of a precision device;
[0018] Figure 4 The present utility model provides a sectional view of a joint body of a connection joint for a projection lens of a precision device.
[0019] Legend: 1. Joint body; 2. Lens body; 3. First protective plate; 4. Second protective plate; 5. Handle; 6. Connection groove; 7. Connection block; 8. Card slot; 9. Insertion plate; 10. Connection ring; 11. First threaded hole; 12. Bolt body; 13. Guide block; 14. Storage groove; 15. Limit groove; 16. Through hole; 17. Spring; 18. Card block; 19. Pulling plate; 20. First baffle; 21. Second baffle; 22. Slot; 23. Sealing ring; 24. Second threaded hole; 25. Guide groove. Detailed implementation manners
[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0021] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0022] Embodiment 1, as Figures 1 - 4 shown, the present utility model provides a connection joint for a projection lens of a precision device, including a joint body 1. A storage groove 14 is opened at the top of the joint body 1. A first protective plate 3 and a second protective plate 4 are slidably installed inside the storage groove 14. Two connection grooves 6 are opened at one end of the first protective plate 3 close to the second protective plate 4. Two connection blocks 7 are fixedly installed at one end of the second protective plate 4 close to the first protective plate 3. The two connection blocks 7 are respectively slidably connected with the two connection grooves 6. Card slots 8 are opened on the opposite sides of the first protective plate 3 and the second protective plate 4. Two limit grooves 15 are symmetrically opened on the inner wall of the storage groove 14. Springs 17 are fixedly installed on the inner walls of the two limit grooves 15. One end of each spring 17 is fixedly installed with a card block 18. Through holes 16 are penetrated through the inner walls of the two limit grooves 15. Pulling plates 19 are fixedly installed on the tops of the two card blocks 18. The two pulling plates 19 are respectively slidably connected with the two through holes 16. A lens body 2 is slidably installed inside the joint body 1.
[0023] The effect achieved by the entire Example 1 is that when the lens body 2 and the joint body 1 are fixed together, the staff inserts the two connecting blocks 7 into the two connecting grooves 6 respectively. At this time, the inner walls of the first protective plate 3 and the second protective plate 4 are in contact with the outer wall of the lens body 2. Then, the staff pushes the first protective plate 3 and the second protective plate 4 downward. The staff pulls the two pulling plates 19, and the pulling plates 19 drive the clamping blocks 18 into the limiting grooves 15, and the springs 17 are compressed. When the clamping grooves 8 move beside the clamping blocks 18, the staff releases the pulling plates 19, and the elastic force of the springs 17 pushes the clamping blocks 18 into the clamping grooves 8. At this time, the first protective plate 3 and the second protective plate 4 are fixed, and the outer walls of the first protective plate 3 and the second protective plate 4 are in contact with the inner wall of the storage groove 14. Therefore, the first protective plate 3 and the second protective plate 4 can prevent moisture from entering the storage groove 14, increasing the sealing performance.
[0024] Example 2, as Figures 1 - 4 shown, further, insertion plates 9 are fixedly installed at the bottoms of both the first protective plate 3 and the second protective plate 4, insertion slots 22 are formed in the inner wall of the storage groove 14, and sealing rings 23 are fixedly installed on the inner walls of the insertion slots 22.
[0025] Further, a plurality of uniformly distributed second threaded holes 24 are formed in the inner wall of the storage groove 14, a connecting ring 10 is fixedly installed on the outer wall of the lens body 2, a plurality of uniformly distributed first threaded holes 11 are formed through the top of the connecting ring 10, and bolt bodies 12 are threadedly connected to the inner walls of the first threaded holes 11.
[0026] Further, a guiding block 13 is fixedly installed at the bottom of the connecting ring 10, and a guiding groove 25 is formed in the inner wall of the storage groove 14.
[0027] Further, first baffles 20 are fixedly installed on the outer walls of the two pulling plates 19, and second baffles 21 are fixedly installed at the ends of the pulling plates 19 away from the first baffles 20.
[0028] Further, the outer walls of the two clamping blocks 18 are respectively in contact with the inner walls of the two clamping grooves 8, preventing the first protective plate 3 and the second protective plate 4 from shaking when the clamping blocks 18 enter the clamping grooves 8.
[0029] Further, handles 5 are fixedly installed at the tops of both the first protective plate 3 and the second protective plate 4, facilitating the staff to draw out the first protective plate 3 and the second protective plate 4.
[0030] The effect achieved by the entire Example 2 is that when the first protective plate 3 and the second protective plate 4 are fixed, the two insertion plates 9 both enter the insertion slots 22, the inclined surfaces of the insertion plates 9 contact the sealing rings 23, and the insertion plates 9 squeeze the sealing rings 23. When the insertion plates 9 completely enter the insertion slots 22, the reaction force given by the sealing rings 23 to the insertion plates 9 reduces the gap between the two, further increasing the sealing performance.
[0031] Working principle: When connecting, the staff inserts the guiding block 13 on the connecting ring 10 into the guiding groove 25. At this time, each first threaded hole 11 moves above each second threaded hole 24. Then the staff rotates the bolt body 12, and the bolt body 12 enters the second threaded hole 24. At this time, the lens body 2 and the joint body 1 are fixed together. Then the staff inserts the two connecting blocks 7 into the two connecting grooves 6 respectively. At this time, the inner walls of the first protective plate 3 and the second protective plate 4 are in contact with the outer wall of the lens body 2. Then the staff pushes the first protective plate 3 and the second protective plate 4 downward. The staff pulls the two pulling plates 19, and the pulling plates 19 drive the clamping blocks 18 to enter the limiting grooves 15, and the springs 17 are compressed. When the clamping grooves 8 move beside the clamping blocks 18, the staff releases the pulling plates 19, and the elastic force of the springs 17 pushes the clamping blocks 18 into the clamping grooves 8. At this time, the first protective plate 3 and the second protective plate 4 are fixed, and the outer walls of the first protective plate 3 and the second protective plate 4 are in contact with the inner wall of the storage groove 14. Therefore, the first protective plate 3 and the second protective plate 4 can prevent moisture from entering the storage groove 14 and increase the sealing performance. At the same time, the two inserting plates 9 both enter the inserting slots 22, and the inclined surfaces of the inserting plates 9 are in contact with the sealing rings 23. The inserting plates 9 squeeze the sealing rings 23. When the inserting plates 9 completely enter the inserting slots 22, the reaction force given by the sealing rings 23 to the inserting plates 9 reduces the gap between the two, further increasing the sealing performance.
[0032] The above is only the preferred embodiment of the present invention, and does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. A connecting joint for a projection lens of a precision device, comprising a joint body (1), characterized in that: A storage groove (14) is formed at the top of the joint body (1). A first protection plate (3) and a second protection plate (4) are slidably installed inside the storage groove (14). Two connection grooves (6) are formed at one end of the first protection plate (3) close to the second protection plate (4). Two connection blocks (7) are fixedly installed at one end of the second protection plate (4) close to the first protection plate (3). The two connection blocks (7) are respectively slidably connected with the two connection grooves (6). Clamping grooves (8) are formed on the opposite sides of the first protection plate (3) and the second protection plate (4). Two limiting grooves (15) are symmetrically formed on the inner wall of the storage groove (14). Springs (17) are fixedly installed on the inner walls of the two limiting grooves (15). A clamping block (18) is fixedly installed at one end of each spring (17). Through holes (16) are formed through the inner walls of the two limiting grooves (15). Pulling plates (19) are fixedly installed at the tops of the two clamping blocks (18). The two pulling plates (19) are respectively slidably connected with the two through holes (16). A lens body (2) is slidably installed inside the joint body (1).
2. The connecting joint for a projection lens of a precision device according to claim 1, wherein: Insertion plates (9) are fixedly installed at the bottoms of the first protection plate (3) and the second protection plate (4). A slot (22) is formed on the inner wall of the storage groove (14). A sealing ring (23) is fixedly installed on the inner wall of the slot (22).
3. A connecting joint for a projection lens of a precision device according to claim 1, characterized in that: Multiple uniformly distributed second threaded holes (24) are formed on the inner wall of the storage groove (14). A connection ring (10) is fixedly installed on the outer wall of the lens body (2). Multiple uniformly distributed first threaded holes (11) are formed through the top of the connection ring (10). A bolt body (12) is threadedly connected to the inner wall of the first threaded hole (11).
4. The connecting joint for a projection lens of a precision device according to claim 3, wherein: A guiding block (13) is fixedly installed at the bottom of the connection ring (10). A guiding groove (25) is formed on the inner wall of the storage groove (14).
5. A connecting joint for a projection lens of a precision device according to claim 1, characterized in that: First baffles (20) are fixedly installed on the outer walls of the two pulling plates (19). A second baffle (21) is fixedly installed at one end of the pulling plate (19) away from the first baffle (20).
6. The connecting joint for a projection lens of a precision device according to claim 1, wherein: The outer walls of the two clamping blocks (18) are respectively in fit with the inner walls of the two clamping grooves (8).
7. A connecting joint for a projection lens of a precision device according to claim 1, characterized in that: Handles (5) are fixedly installed at the tops of the first protection plate (3) and the second protection plate (4).