A novel LED testing device

Abstract

This utility model discloses a novel LED testing device, including a base frame, a rotary lifting mechanism, a position locking mechanism, and a locking auxiliary mechanism. The rotary lifting mechanism includes a rotary motor and a lifting cylinder. The position locking mechanism includes a locking tube and a locking rod. The locking auxiliary mechanism includes a top ring and a mating ring. The rotary lifting mechanism achieves multi-dimensional precise positioning of the LED testing platform through the coordinated work of the rotary motor and the lifting cylinder. The rotary motor drives the rotating frame to achieve horizontal rotation, while the lifting cylinder controls the vertical height adjustment of the testing platform. The position locking mechanism uses the ingenious cooperation of the locking tube and the locking rod to achieve rapid locking and releasing of the device position. The locking groove on the side wall of the locking rod and the locking block on the rotating plate of the outer wall of the locking tube form a locking mechanism.

Description

Technical Field

[0001] This utility model relates to the field of LED testing technology, and more specifically, to a novel LED testing device. Background Technology

[0002] In existing LED testing technologies, specialized LED testing devices are typically used to meet the requirements for photoelectric parameter testing, quality control, and consistency screening of LED lamps or modules of different specifications before they leave the factory. These devices generally include a power control unit, an optical inspection system, and a testing platform for placing the product under test. As the core structure of the LED testing device that supports and positions the object under test, the structural design and adjustment performance of the testing platform directly affect the testing accuracy and ease of operation.

[0003] Some existing LED testing stations adopt a fixed height and fixed orientation design, meaning the testing station is fixedly installed at a certain height and angle on the testing frame. This structure can meet basic requirements when testing a specific type of LED device, but when dealing with different types, sizes, or different light emission angle requirements of LED products, the testing station cannot dynamically adjust its height or angle, thus affecting the accuracy of the test data.

[0004] Even if some equipment supports limited adjustment of the testing stage position, the adjustment methods are often quite rudimentary, such as manually tightening or loosening screws or moving slide rails to achieve fine-tuning. This method is not only cumbersome to operate but also has low adjustment accuracy, making it difficult to meet the needs of high-precision optical alignment testing. Furthermore, frequent manual adjustments are prone to errors and have poor repeatability, affecting the consistency and stability of the test. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a new LED testing device to solve the technical problems mentioned in the background art, such as the lack of lifting and rotating means of the testing platform and the inconvenience of adjusting the position of the testing platform.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: A novel LED testing device, comprising a base frame, a rotary lifting mechanism, a position locking mechanism, and a locking auxiliary mechanism. The rotary lifting mechanism includes a rotary motor and a lifting cylinder. A rotating frame is mounted on the output end of the rotary motor and is rotatably mounted on the base frame. The lifting cylinder is mounted on the rotating frame, and a testing platform is mounted on one end of the lifting cylinder. An adjusting frame is mounted on the bottom end of the rotating frame, and an adjusting plate is fixedly mounted on the base frame. The adjusting frame is slidably guided on the adjusting plate. The position locking mechanism includes a locking tube and a locking rod. A locking groove is formed on the side wall of the locking rod. A rotating plate is rotatably mounted on the outer wall of the locking tube. A pressing block and a locking block are mounted at both ends of the rotating plate. A pushing frame is longitudinally slidably mounted on the outer wall of the locking tube. The pushing frame pushes the rotating plate or presses against the pressing block, causing the locking block to embed into the locking groove and fix the locking rod in the locking tube, or to move the locking block away from the locking groove.

[0009] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a top-receiving ring and a mating ring. A rotating frame is rotatably mounted on the outer wall of the snap-fit ​​tube. The inner wall of the rotating frame is threadedly connected to the outer wall of the push frame. The top-receiving ring is symmetrically installed at the top and bottom ends of the rotating frame. The mating ring is fixedly installed at the bottom and top ends of the outer wall of the snap-fit ​​tube. A spring is installed on the mating ring, and multiple sets of springs are provided. One end of the top-receiving ring has a top-receiving groove. One end of the spring is pushed into the top-receiving groove step by step, so that the rotating frame rotates stably on the snap-fit ​​tube.

[0010] The present invention is further configured such that a longitudinal frame is installed at the top end of the base frame, and a crossbeam is installed on the longitudinal frame, and a transverse moving component is installed on the crossbeam.

[0011] The present invention is further configured such that a transverse plate is installed on the transverse moving component, and a longitudinal moving component is installed on the transverse moving plate, and a detection component is installed on the longitudinal moving component, with the detection component being arranged opposite to the detection table.

[0012] The present invention is further configured such that a placement plate is installed on the base frame, and a material box is installed on the placement plate. The placement plate and the material box are installed on the base frame to provide storage space for LED components, making it convenient for operators to pick up and put away test samples.

[0013] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the card tube, and the connecting plate is fixedly installed on the adjustment frame, and the connecting plate is installed at the bottom of the side wall and fixedly connected to the adjustment frame.

[0014] The present invention is further configured such that the adjustment plate is provided with adjustment holes, one end of the locking rod can pass through different adjustment holes and engage with the locking tube, and one end of the locking rod can pass through different adjustment holes on the adjustment plate to achieve multi-position locking.

[0015] The present invention is further configured such that a sealing block is installed at one end of the locking rod, and one end face of the sealing block is in contact with one end face of the adjusting plate. The sealing block enhances the locking stability and prevents loosening.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a novel LED testing device, which has the following features:

[0018] Beneficial effects:

[0019] This invention features a rotary lifting mechanism that, through the coordinated operation of a rotary motor and a lifting cylinder, achieves multi-dimensional precise positioning of the LED testing platform. The rotary motor drives the rotating frame to rotate horizontally, while the lifting cylinder controls the vertical height adjustment of the testing platform. The adjustment frame at the bottom of the rotating frame can slide and guide on the adjustment plate, expanding the horizontal positioning range and forming a complete three-dimensional adjustment system. This design enables the device to quickly and accurately adjust the position of the testing platform, adapting to the testing needs of LED components of different sizes and types, and improving testing efficiency and accuracy.

[0020] This invention features a position locking mechanism that cleverly combines a locking tube and a locking rod to achieve rapid locking and releasing of the device position. The locking groove on the side wall of the locking rod and the locking block on the rotating plate of the outer wall of the locking tube form a locking mechanism. The locking state is controlled by moving the push frame up and down. The locking rod can pass through different adjustment holes on the adjustment plate to cooperate with the locking tube, enabling multiple position locking options. This ensures the stability of the testing platform during testing and provides the convenience of quick adjustment and repositioning, greatly improving operational efficiency and testing stability.

[0021] This utility model is equipped with a locking auxiliary mechanism. The locking auxiliary mechanism provides precise and stable operation control for the position locking mechanism through the precise cooperation of the top ring and the mating ring. The rotating frame, which is installed on the upper limit of the locking tube, converts the rotational motion into the longitudinal movement of the pushing frame through the threaded connection. The top groove on the top ring cooperates with the multiple sets of spring support springs on the mating ring to realize the staged stable rotation of the rotating frame on the locking tube. This not only provides clear operation feedback and prevents accidental loosening, but also realizes precise control of the rotation operation, ensuring the reliability and convenience of the locking and unlocking process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0023] Figure 2 This is a schematic diagram of the rotary lifting mechanism in this utility model;

[0024] Figure 3This is a schematic diagram of the position locking mechanism in this utility model;

[0025] Figure 4 This is a schematic diagram of the position locking mechanism and locking auxiliary mechanism in this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the position locking mechanism and the locking auxiliary mechanism in this utility model.

[0027] In the diagram: 1. Base frame; 2. Rotary motor; 3. Lifting cylinder; 4. Rotating frame; 5. Testing platform; 6. Adjusting frame; 7. Adjusting plate; 8. Connecting pipe; 9. Connecting rod; 10. Slot; 11. Rotating plate; 12. Pressing block; 13. Locking block; 14. Pushing frame; 15. Top ring; 16. Matching ring; 17. Rotating frame; 18. Spring support; 19. Top groove; 20. Longitudinal frame; 21. Crossbeam; 22. Lateral movement assembly; 23. Lateral movement plate; 24. Longitudinal movement assembly; 25. Testing assembly; 26. Placement plate; 27. Material box; 28. Connecting plate; 29. ​​Adjusting hole; 30. Sealing block. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5A novel LED testing device includes a base frame 1, a rotary lifting mechanism, a position locking mechanism, and a locking auxiliary mechanism. The rotary lifting mechanism includes a rotary motor 2 and a lifting cylinder 3. A rotating frame 4 is mounted on the output end of the rotary motor 2 and is rotatably mounted on the base frame 1. The lifting cylinder 3 is mounted on the rotating frame 4, and a testing platform 5 is mounted on one end of the lifting cylinder 3. An adjusting frame 6 is mounted on the bottom end of the rotating frame 17, and an adjusting plate 7 is fixedly mounted on the base frame 1. The adjusting frame 6 rests on the adjusting plate 7. The sliding guide setting and the position locking mechanism include a locking tube 8 and a locking rod 9. A locking groove 10 is provided on the side wall of the locking rod 9. A rotating plate 11 is rotatably installed on the outer wall of the locking tube 8. A pressing block 12 and a locking block 13 are installed at both ends of the rotating plate 11. A push frame 14 is longitudinally slidably installed on the outer wall of the locking tube 8. The push frame 14 pushes the rotating plate 11 or presses against the pressing block 12, so that the locking block 13 is embedded in the locking groove 10 to fix the locking rod 9 in the locking tube 8, or so that the locking block 13 is moved away from the locking groove 10.

[0032] In this embodiment, the rotary lifting mechanism achieves precise positioning of the LED testing platform 5 through the coordinated operation of the rotary motor 2 and the lifting cylinder 3. During operation, the rotary motor 2 drives the rotating frame 4 at its output end to rotate, and the rotating frame 4 drives the adjusting frame 6 at its bottom to slide on the adjusting plate 7 on the base frame 1, achieving horizontal rotational positioning. At the same time, the lifting cylinder 3 installed on the rotating frame 4 controls the vertical lifting movement of the testing platform 5. The height position of the testing platform 5 is adjusted by the piston of the telescopic cylinder. The bidirectional adjustment mechanism ensures that the testing platform 5 can be accurately positioned to the optimal LED testing position. The position locking mechanism realizes the positioning of the rotating frame 4 through the locking tube 8 and the locking rod 9. The quick locking and adjustment mechanism allows for the locking of the position. During operation, one end of the locking rod 9 passes through the adjustment hole 29 on the adjustment plate 7 and engages with the locking tube 8. The locking groove 10 on the side wall of the locking rod 9 and the locking block 13 on the rotating plate 11 rotatably mounted on the outer wall of the locking tube 8 form a locking mechanism. When the position needs to be locked, the pusher 14 on the outer wall of the locking tube 8 pushes down the rotating plate 11, causing the locking block 13 to embed into the locking groove 10 of the locking rod 9, thus fixing the locking rod 9 in the locking tube 8 and achieving position locking. When the position needs to be adjusted, the pusher 14 moves up and presses against the pressing block 12 on the rotating plate 11, causing the locking block 13 to move away from the locking groove 10, releasing the locking rod 9, and allowing repositioning.

[0033] The clamping auxiliary mechanism includes a top-loading ring 15 and a mating ring 16. A rotating frame 17 is rotatably mounted on the outer wall of the clamping pipe 8. The inner wall of the rotating frame 17 is threadedly connected to the outer wall of the push frame 14. The top-loading ring 15 is symmetrically installed at the top and bottom ends of the rotating frame 17. The mating ring 16 is fixedly installed at the bottom and top ends of the outer wall of the clamping pipe 8. A spring support spring 18 is installed on the mating ring 16, and multiple sets of spring support springs 18 are provided. A top-loading groove 19 is opened at one end of the top-loading ring 15. One end of the spring support spring 18 is pushed into the top-loading groove 19 step by step, so that the rotating frame 17 rotates stably on the clamping pipe 8.

[0034] In this embodiment, the snap-fit ​​auxiliary mechanism provides precise control of the position snap-fit ​​mechanism through the top ring 15 and the mating ring 16. During operation, the rotating frame 17, which is rotatably mounted on the outer wall of the snap-fit ​​tube 8, is connected to the push frame 14 by threads, converting the rotational motion into the longitudinal movement of the push frame 14. The top ring 15 is symmetrically mounted on the top and bottom of the rotating frame 17 and works in cooperation with the mating ring 16, which is fixedly mounted on the outer wall of the snap-fit ​​tube 8. Multiple sets of spring springs 18 are installed on the mating ring 16. When the rotating frame 17 rotates, one end of the spring spring 18 pushes into the top groove 19 at one end of the top ring 15 step by step, providing clear operation feedback and positioning function, ensuring that the rotating frame 17 rotates stably on the snap-fit ​​tube 8 and preventing accidental loosening.

[0035] Please see Figures 1-5 As a supplementary embodiment of a novel LED testing device for the rotary lifting mechanism, the position locking mechanism, and the locking auxiliary mechanism: A longitudinal frame 20 is installed at the top end of the base frame 1, and a crossbeam 21 is installed on the longitudinal frame 20. A transverse moving component 22 is installed on the crossbeam 21, a transverse moving plate 23 is installed on the transverse moving component 22, and a longitudinal moving component 24 is installed on the transverse moving plate 23. A detection component 25 is installed on the longitudinal moving component 24. The detection component 25 is arranged opposite to the detection table 5. A placement plate 26 is installed on the base frame 1, and a material box 27 is installed on the placement plate 26. A connecting plate 28 is installed at the bottom end of the side wall of the locking tube 8, and the connecting plate 28 is fixedly installed on the adjusting frame 6. An adjusting hole 29 is opened on the adjusting plate 7. One end of the locking rod 9 can pass through different adjusting holes 29 and engage with the locking tube 8. A sealing block 30 is installed on one end of the locking rod 9, and one end face of the sealing block 30 is in contact with one end face of the adjusting plate 7.

[0036] More specifically, the LED component to be tested is placed in the material box 27 on the placement plate 26 mounted on the base frame 1. The detection component 25 is mounted on the longitudinal movement component 24, which is mounted on the transverse movement plate 23. The transverse movement plate 23 is mounted on the transverse movement component 22, which is mounted on the crossbeam 21. The rotating frame 4 is driven to rotate by the rotary motor 2, and the adjusting frame 6 slides on the adjusting plate 7 to achieve horizontal positioning of the detection platform 5. At the same time, the height of the detection platform 5 is controlled by the lifting cylinder 3 to achieve precise vertical positioning, so that the relative position of the detection platform 5 and the detection component 25 is optimal. After positioning is completed, the LED component to be tested is placed in the material box 27 on the placement plate 26 mounted on the base frame 1. The detection component 25 is mounted on the longitudinal movement plate 24, which is mounted on the transverse movement plate 23, which is mounted on the transverse movement plate 23, and the transverse movement component 22 is mounted on the transverse movement plate 22. The transverse movement component 25 is mounted on the transverse movement plate 24, which is mounted on the transverse movement plate 24, and the transverse movement component 25 is mounted on the transverse movement plate 25 ...4. The transverse movement component 25 is mounted on the The position locking mechanism locks the current position. The locking rod 9 passes through the appropriate adjustment hole 29 on the adjustment plate 7 and engages with the locking tube 8. Rotating the rotating frame 17 causes the pusher frame 14 to push down the rotating plate 11, and the locking block 13 embeds into the locking groove 10, achieving a secure lock. After locking the position, the detection component 25 is positioned opposite the detection table 5, and the LED element is tested. During the test, the device remains stable to ensure accurate and reliable test results. When it is necessary to test different types or positions of LED elements, rotating the rotating frame 17 causes the pusher frame 14 to move upward and press against the pressing block 12, and the locking block 13 disengages from the locking groove 10, releasing the locked state. Then, the rotary motor 2 and the lifting cylinder 3 can be readjusted to set a new detection position.

[0037] In summary, during the use or operation of the overall equipment: when the rotating lifting mechanism is required, the rotating lifting mechanism achieves precise positioning of the LED testing platform 5 through the coordinated work of the rotating motor 2 and the lifting cylinder 3. During operation, the rotating motor 2 drives the rotating frame 4 at the output end to rotate, and the rotating frame 4 drives the adjusting frame 6 at its bottom to slide on the adjusting plate 7 on the base frame 1 to achieve horizontal rotational positioning. At the same time, the lifting cylinder 3 installed on the rotating frame 4 controls the vertical lifting movement of the testing platform 5. The height position of the testing platform 5 is adjusted by the piston of the telescopic cylinder. The two-way adjustment mechanism ensures that the testing platform 5 can be accurately positioned to the optimal LED testing position.

[0038] When the position locking mechanism is in operation, it achieves rapid locking and adjustment of the position of the rotating frame 4 through the locking tube 8 and the locking rod 9. During operation, one end of the locking rod 9 passes through the adjustment hole 29 on the adjustment plate 7 and engages with the locking tube 8. The locking groove 10 on the side wall of the locking rod 9 and the locking block 13 on the rotating plate 11 rotatably mounted on the outer wall of the locking tube 8 form a locking mechanism. When the position needs to be locked, the pusher 14 on the outer wall of the locking tube 8 pushes the rotating plate 11 down, so that the locking block 13 is embedded in the locking groove 10 of the locking rod 9, fixing the locking rod 9 in the locking tube 8 and achieving position locking. When the position needs to be adjusted, the pusher 14 moves up and presses against the pressing block 12 of the rotating plate 11, so that the locking block 13 moves away from the locking groove 10, releasing the locking rod 9 and allowing repositioning.

[0039] When the locking auxiliary mechanism is required to operate, it provides precise control of the position locking mechanism through the top ring 15 and the mating ring 16. During operation, the rotating frame 17, which is installed on the outer wall of the locking tube 8, is connected to the push frame 14 by threads, converting the rotational motion into the longitudinal movement of the push frame 14. The top ring 15 is symmetrically installed on the top and bottom of the rotating frame 17 and works in cooperation with the mating ring 16, which is fixedly installed on the outer wall of the locking tube 8. Multiple sets of spring springs 18 are installed on the mating ring 16. When the rotating frame 17 rotates, one end of the spring spring 18 pushes into the top groove 19 at one end of the top ring 15 step by step, providing clear operation feedback and positioning function, ensuring that the rotating frame 17 rotates stably on the locking tube 8 and preventing accidental loosening.

[0040] The LED component to be tested is placed in the material box 27 on the placement plate 26 mounted on the base frame 1. The detection component 25 is mounted on the longitudinal movement component 24, which is mounted on the transverse movement plate 23. The transverse movement plate 23 is mounted on the transverse movement component 22, which is mounted on the crossbeam 21. The rotating frame 4 is driven to rotate by the rotary motor 2, and the adjusting frame 6 slides on the adjusting plate 7 to achieve horizontal positioning of the detection platform 5. At the same time, the height of the detection platform 5 is controlled by the lifting cylinder 3 to achieve precise vertical positioning, so that the relative position of the detection platform 5 and the detection component 25 is optimal. After positioning, the position is determined by... The locking mechanism locks the current position. The locking rod 9 passes through the appropriate adjustment hole 29 on the adjustment plate 7 and engages with the locking tube 8. Rotating the rotating frame 17 causes the pusher frame 14 to push down the rotating plate 11, and the locking block 13 embeds into the slot 10, achieving a secure lock. After locking, the detection component 25 is positioned opposite the detection stage 5, and testing of the LED components begins. During the test, the device remains stable to ensure accurate and reliable test results. When testing different types or positions of LED components, rotating the rotating frame 17 causes the pusher frame 14 to move upward and press against the pressing block 12, disengaging the locking block 13 from the slot 10 and releasing the lock. Then, the rotary motor 2 and the lifting cylinder 3 can be readjusted to set a new detection position.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0042] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A novel LED testing device, characterized in that: The system includes a base frame (1), a rotary lifting mechanism, a position locking mechanism, and a locking auxiliary mechanism. The rotary lifting mechanism includes a rotary motor (2) and a lifting cylinder (3). A rotating frame (4) is mounted on the output end of the rotary motor (2). The rotating frame (4) is rotatably mounted on the base frame (1). The lifting cylinder (3) is mounted on the rotating frame (4). A testing platform (5) is mounted on one end of the lifting cylinder (3). An adjusting frame (6) is mounted on the bottom end of the rotating frame (17). An adjusting plate (7) is fixedly mounted on the base frame (1). The adjusting frame (6) is slidably guided on the adjusting plate (7). The position locking mechanism includes a locking tube (8) and a locking rod (9). A locking groove (10) is provided on the side wall of the locking rod (9). A rotating plate (11) is rotatably installed on the outer wall of the locking tube (8). A pressing block (12) and a locking block (13) are installed at both ends of the rotating plate (11). A pushing frame (14) is longitudinally slidably installed on the outer wall of the locking tube (8). The pushing frame (14) pushes the rotating plate (11) or presses against the pressing block (12).

2. The novel LED testing device according to claim 1, characterized in that: The locking auxiliary mechanism includes a top ring (15) and a mating ring (16). A rotating frame (17) is rotatably mounted on the outer wall of the locking tube (8). The inner wall of the rotating frame (17) is threadedly connected to the outer wall of the push frame (14). The top ring (15) is symmetrically mounted on the top and bottom ends of the rotating frame (17). The mating ring (16) is fixedly mounted on the bottom and top ends of the outer wall of the locking tube (8). A spring support spring (18) is mounted on the mating ring (16), and multiple sets of spring support springs (18) are provided. A top groove (19) is opened at one end of the top ring (15).

3. The novel LED testing device according to claim 1, characterized in that: A longitudinal frame (20) is installed at the top end of the base frame (1), and a crossbeam (21) is installed on the longitudinal frame (20), and a transverse moving component (22) is installed on the crossbeam (21).

4. The novel LED testing device according to claim 3, characterized in that: A transverse plate (23) is installed on the transverse component (22), and a longitudinal component (24) is installed on the transverse plate (23). A detection component (25) is installed on the longitudinal component (24), and the detection component (25) is arranged opposite to the detection table (5).

5. The novel LED testing device according to claim 1, characterized in that: The base frame (1) is equipped with a placement plate (26), and a material box (27) is installed on the placement plate (26).

6. The novel LED testing device according to claim 1, characterized in that: A connecting plate (28) is installed at the bottom of the side wall of the card tube (8), and the connecting plate (28) is fixedly installed on the adjustment frame (6).

7. The novel LED testing device according to claim 1, characterized in that: The adjustment plate (7) has an adjustment hole (29), and one end of the locking rod (9) can pass through different adjustment holes (29) and engage with the locking tube (8).

8. The novel LED testing device according to claim 1, characterized in that: One end of the snap-fit ​​rod (9) is equipped with a sealing block (30), and one end face of the sealing block (30) is in contact with one end face of the adjusting plate (7).

Images