Optical glass lens detection platform

Abstract

The optical glass lens detection platform is applied to the technical field of optical glass lenses and comprises a base, a rack is fixedly mounted at the top of the base, a positioning assembly and a placing assembly are sequentially arranged at the bottom of the rack, and a detection assembly located on the rear side of the placing assembly is arranged at the bottom of the rack. The optical glass lens detection platform comprises a plurality of placing assemblies and a plurality of detection assemblies, the placing assemblies and the detection assemblies are equal to each other, each placing assembly comprises a transparent supporting plate, and a stop block is fixedly mounted at the top of each transparent supporting plate. And optical lenses with different thicknesses and diameters can generate different pressure feedbacks, so that an operator can conveniently compare the pressure feedbacks. And then light transmittance detection and scar detection of the optical lens can be realized in sequence. Through the arrangement, the flow continuity of optical lens detection can be improved, and the detection efficiency of the optical lens can be effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical glass lenses, and in particular relates to a detection platform for optical glass lenses. Background Art

[0002] Optical glass is a glass that can change the propagation direction of light and the relative spectral distribution of ultraviolet, visible or infrared light. In a narrow sense, optical glass refers to colorless optical glass; in a broad sense, optical glass also includes colored optical glass, laser glass, quartz optical glass, radiation-resistant glass, ultraviolet infrared optical glass, fiber optical glass, acousto-optic glass, magneto-optic glass and photochromic glass. Optical glass can be used to manufacture lenses, prisms, reflectors and windows in optical instruments. Components made of optical glass are key components in optical instruments. At present, in the inspection of optical glass lenses, their thickness, light transmittance and the presence of scratches are mostly tested. In the inspection process, the optical glass lenses are gradually placed in multiple equipment instruments for inspection. This behavior will make the inspection efficiency of the optical glass lenses low, and it is easy to cause damage and scratches to the optical glass lenses during frequent handling and transfer; or the glass lenses are protected and sealed with a film and taken out when in use, which undoubtedly increases the inspection process and complexity. Summary of the invention

[0003] The purpose of the present invention is to provide an optical glass lens inspection platform, which has the advantage that optical lenses of different thicknesses and diameters will have different pressure feedbacks, which is convenient for operators to make comparisons, and then the optical lens transmittance inspection and scratch inspection can be carried out in sequence, improving the process continuity of optical lens inspection; effectively reducing the wear and tear on the optical lens caused by frequent handling and disassembly. At the same time, in subsequent operations, the adaptive centering positioning of the optical lens can be easily completed, reducing unnecessary operations and wear and tear contacts in workpiece positioning.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: an optical glass lens detection platform, comprising a base, a frame fixedly mounted on the top of the base, a positioning component and a placement component are sequentially arranged at the bottom of the frame, a detection component located at the rear side of the placement component is arranged at the bottom of the frame, the number of the placement components and the detection components are both multiple and equal to each other, the placement component comprises a transparent support plate, a block is fixedly mounted on the top of the transparent support plate, the number of the blocks is four and is equidistantly distributed, and a driving component is arranged inside the base. By adopting the above technical scheme, when using the optical glass lens detection platform, the operator preferentially places the optical lens on the placement component. The optical lens is preferentially positioned in the center of the placement component by the operation of the positioning component. In this process, it is necessary to ensure that the placement component has a certain contraction pressure. At the same time, when multiple optical lenses are operated, optical lenses of different thicknesses will have different pressure feedbacks, and multiple groups of positioning components have the same height after moving down. When the outer diameters of the optical lenses are of different sizes and the thicknesses are not uniform, the contraction heights of the placement components will be different, and specific pressure feedback values ​​will be obtained, which is more convenient for operators to compare. After the thickness and outer diameter size detection is completed, the positioning component is operated to return. Then the drive component is operated to rotate forward, so that the detection component rotates at an angle of degrees in the initial state, and the transmittance detection of the optical lens can be realized at this time. Then the drive component is operated to reverse, so that the detection component rotates at an angle of degrees, thereby realizing the scar detection of the optical lens. This setting can improve the process continuity of optical lens detection and effectively improve the detection efficiency of optical lenses. At the same time, in the early stage of operation, the operator takes the optical lens and places it on the placement component, and removes the optical lens after the inspection is completed. This behavior will effectively reduce the wear and tear on the optical lens caused by frequent taking and disassembly. At the same time, in subsequent operations, the adaptive centering of the optical lens can be easily completed, reducing unnecessary operations and wear and contact during workpiece positioning.

[0005] The present invention is further configured as follows: a connecting plate is provided at the bottom of the transparent support plate, a fixing plate fixedly connected to the top of the base is provided at the bottom of the connecting plate, a pressure sensor is fixedly installed between the fixing plate and the connecting plate, and side ears are fixedly installed on both sides of the transparent support plate.

[0006] By adopting the above technical solution, a transparent support plate is used to support and place the optical lens, wherein the transparent support plate will be made of a transparent scratch-free material. During use, when the connecting plate is subjected to pressure, the pressure sensor will detect the pressure to obtain the pressure value.

[0007] The present invention is further configured as follows: a guide rod 1 penetrating to the top of the side ear is fixedly installed on both sides of the top of the connecting plate, the guide rod 1 and the side ear are slidably connected to each other, a limiting block 1 is fixedly installed on the top of the guide rod 1, a spring is sleeved on the surface of the guide rod 1, the top of the spring and the side ear are fixedly connected to each other, and the bottom of the spring and the connecting plate are fixedly connected to each other.

[0008] With the above technical solution, when the spring contracts and causes the transparent support plate to move longitudinally, the side ear will move on the guide rod 1, and the guide rod 1 will guide the movement of the side ear. The limit block limits the position of the side ear on the surface of the guide rod 1 to prevent it from slipping off the guide rod 1.

[0009] The present invention is further configured as follows: the positioning assembly includes a moving plate, a cylinder penetrating to the bottom of the frame is fixedly installed on the top of the frame, the output end of the cylinder is fixedly connected to the top of the moving plate, both ends of the top of the moving plate are fixedly installed with guide rods 2 penetrating to the top of the frame, the guide rods 2 and the frame are slidably connected to each other, and a limiting block 2 is fixedly installed on the top of the guide rods 2.

[0010] By adopting the above technical solution, the operation of the cylinder will drive the moving plate to move longitudinally, wherein the guide rod 2 cooperates with the moving guide of the moving plate, and the setting of the limit block 2 prevents the moving plate from slipping.

[0011] The present invention is further configured as follows: a disc is provided at the bottom of the movable plate, the number of the discs is five and they are distributed at equal distances, a connecting rod fixedly connected to the movable plate is fixedly installed on the top of the disc, and two mutually symmetrical positioning parts are fixedly installed on the bottom of the disc, and a matching groove is formed between the two positioning parts.

[0012] By adopting the above technical solution, the movement of the shift plate will drive the disc to move synchronously through the connecting rod, wherein the disc will support and fix the positioning member. When the positioning member positions the optical lens on the transparent support plate, the matching groove and the side ears will accommodate it between the positioning members.

[0013] The present invention is further configured as follows: the detection assembly includes a rod body 1, the rod body 1 and the base are rotatably connected to each other through a bearing, a fixing piece is fixedly sleeved on the surface of the rod body 1, and a transmittance detector is fixedly installed on one end of the fixing piece.

[0014] By adopting the above technical solution, the rotation of the rod body 1 will drive the fixing member to rotate and adjust the angle of the light transmittance detector.

[0015] The present invention is further configured as follows: a supporting member is fixedly mounted on the other end of the fixing member, a CCD sensor is fixedly mounted on the top of the supporting member, and a lighting lamp is fixedly mounted on the bottom of the supporting member.

[0016] By adopting the above technical solution, the movement of the fixing part will simultaneously drive the movement of the supporting part, and the supporting part will drive the CCD sensor and the lighting lamp to move synchronously, wherein the lighting lamp illuminates the bottom of the optical lens, and then the CCD sensor will photograph the optical lens from the top and transmit it to an external computer.

[0017] The present invention is further configured as follows: the driving assembly includes a rotating motor, and a rod body 2 and a rod body 3 are respectively arranged between the multiple rod bodies 1, and the rod bodies 2 and 3 are both rotatably connected to the inside of the base through bearings, and the rotating motor is fixedly connected to the inner side of the base.

[0018] By adopting the above technical solution, the rod body 2 and the rod body 3 can rotate smoothly inside the base through the bearing.

[0019] The present invention is further configured as follows: the output end of the rotating motor is fixedly sleeved with the rod body 2 through a coupling, the surfaces of the rod body 2 and the rod body 3 are fixedly sleeved with gear 1, the surface of the rod body 1 is fixedly sleeved with gear 2, and the gear 1 and gear 2 are meshed with each other.

[0020] By adopting the above technical solution, the operation of the rotating motor will drive the rod body 2 to rotate, and the rotation of the rod body 2 will drive the gear 1 on its surface to rotate. During the rotation of gear 1, the surrounding gear 2 and other gear 1 will be driven to rotate synchronously, and the rotation of rod body 1 and rod body 3 will be realized at this time.

[0021] In summary, the present invention has the following beneficial effects: When using the optical glass lens inspection platform, during the operation of multiple optical lenses, optical lenses of different thicknesses and diameters will have different pressure feedbacks, which is convenient for operators to make comparisons. Then, the optical lens transmittance inspection and scratch inspection can be carried out in turn. This setting can improve the process continuity of optical lens inspection and effectively improve the inspection efficiency of optical lenses; When using the inspection platform for optical glass lenses, the operator takes the optical lens and places it on the transparent tray in the early stage of operation, and removes the optical lens after the inspection is completed. This behavior will effectively reduce the wear and tear on the optical lens caused by frequent taking and disassembly. At the same time, in subsequent operations, the adaptive centering of the optical lens can be easily completed without the tedious manual positioning, reducing unnecessary operations and wear and contact during workpiece positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is an exploded and enlarged schematic diagram of the positioning component of the present invention; Figure 3 It is an enlarged schematic diagram of the placement component, the positioning component and the detection component of the present invention; Figure 4 It is an enlarged schematic diagram of the detection assembly and gear 2 of the present invention; Figure 5 It is an enlarged schematic diagram of the placement component, the positioning component, the detection component and the optical lens of the present invention in cooperation with each other; Figure 6 It is a schematic diagram of the detection assembly and gear two decomposition and enlargement of the present invention; Figure 7 It is an enlarged schematic diagram of the placement component and the positioning component of the present invention; Figure 8It is an exploded and enlarged schematic diagram of the placement component and the positioning component of the present invention; Fig. 9 It is an enlarged schematic diagram of the driving component of the present invention.

[0023] : 1. base; 2. rack; 3. placement assembly; 301. transparent support plate; 302. connecting plate; 303. fixing plate; 304. pressure sensor; 305. side ear; 306. guide rod one; 307. spring; 308. limit block one; 309. stop block; 4. positioning assembly; 401. shift plate; 402. cylinder; 403. positioning piece; 404. matching groove; 405. disc; 406. connecting rod; 407. guide rod two; 408. limit block two; 5. detection assembly; 501. rod body one; 502. fixing piece; 503. transmittance detector; 504. supporting piece; 505. CCD sensor; 506. lighting lamp; 6. driving assembly; 601. rotating motor; 602. rod body two; 603. rod body three; 604. gear one; 605. gear two. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Example: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , an optical glass lens detection platform, including a base 1, a frame 2 is fixedly installed on the top of the base 1, a positioning component 4 and a placement component 3 are arranged at the bottom of the frame 2 in sequence, a detection component 5 is arranged at the bottom of the frame 2 and is located at the rear side of the placement component 3, the number of the placement components 3 and the detection components 5 are multiple and equal to each other, the placement component 3 includes a transparent support plate 301, a stopper 309 is fixedly installed on the top of the transparent support plate 301, the number of the stopper 309 is four and is equidistantly distributed, and a driving component 6 is arranged inside the base 1. When the optical glass lens detection platform is used, during the operation of multiple optical lenses, optical lenses of different thicknesses and diameters will have different pressure feedbacks, which is convenient for operators to make comparisons. Then, the optical lens transmittance detection and scar detection can be realized in sequence. Through this setting, the process continuity of optical lens detection can be improved, and the detection efficiency of optical lenses can be effectively improved. At the same time, in the early operation, the operator takes the optical lens and places it on the transparent support plate 301, and removes the optical lens after the detection is completed. This behavior will effectively reduce the wear and tear that may be caused to the optical lens by frequent taking and disassembly. At the same time, in subsequent operations, the adaptive centering of the optical lens can be easily completed, reducing unnecessary operations and wear and contact during workpiece positioning.

[0026] refer to Figure 2 , Figure 7 , Figure 8 A connecting plate 302 is provided at the bottom of the transparent support plate 301, and a fixing plate 303 fixedly connected to the top of the base 1 is provided at the bottom of the connecting plate 302. A pressure sensor 304 is fixedly installed between the fixing plate 303 and the connecting plate 302. Side ears 305 are fixedly installed on both sides of the transparent support plate 301. The transparent support plate 301 is used to support and place the optical lens. The transparent support plate 301 will be made of a transparent and scratch-free material. During use, when the connecting plate 302 is subjected to pressure, the pressure sensor 304 will cooperate with the pressure for detection, thereby obtaining the pressure value.

[0027] refer to Figure 5 , Figure 7 , Figure 8 , a guide rod 306 penetrating to the top of the side ear 305 is fixedly installed on both sides of the top of the connecting plate 302, and the guide rod 306 and the side ear 305 are slidably connected to each other, and a limiting block 308 is fixedly installed on the top of the guide rod 306. A spring 307 is sleeved on the surface of the guide rod 306, and the top of the spring 307 and the side ear 305 are fixedly connected to each other, and the bottom of the spring 307 and the connecting plate 302 are fixedly connected to each other. When the spring 307 contracts and causes the transparent support plate 301 to have a longitudinal displacement, the side ear 305 will move on the guide rod 306, and the guide rod 306 cooperates with the movement of the side ear 305 to guide. The limiting block 308 limits the position of the side ear 305 on the surface of the guide rod 306 to prevent it from slipping off the guide rod 306.

[0028] refer to Figure 1 , Figure 2 The positioning assembly 4 includes a moving plate 401, and a cylinder 402 that penetrates to the bottom of the frame 2 is fixedly installed on the top of the frame 2. The output end of the cylinder 402 is fixedly connected to the top of the moving plate 401, and both ends of the top of the moving plate 401 are fixedly installed with a guide rod 407 that penetrates to the top of the frame 2. The guide rod 407 and the frame 2 are slidably connected to each other, and a limit block 408 is fixedly installed on the top of the guide rod 407. The operation of the cylinder 402 will drive the moving plate 401 to move longitudinally, wherein the guide rod 407 cooperates with the moving guide of the moving plate 401, and the setting of the limit block 408 prevents the moving plate 401 from slipping.

[0029] refer to Figure 1 , Figure 2 , Figure 5A disc 405 is provided at the bottom of the moving plate 401. There are five discs 405 distributed at equal distances. A connecting rod 406 fixedly connected to the moving plate 401 is fixedly installed on the top of the disc 405. Two symmetrical positioning members 403 are fixedly installed at the bottom of the disc 405. A matching groove 404 is formed between the two positioning members 403. The movement of the moving plate 401 will drive the disc 405 to move synchronously through the connecting rod 406, wherein the disc 405 will support and fix the positioning member 403. When the positioning member 403 positions the optical lens on the transparent support plate 301, the matching groove 404 cooperates with the side ear 305 to be accommodated between the positioning members 403.

[0030] refer to Figure 3 , Figure 4 , Figure 6 The detection component 5 includes a rod body 501, and the rod body 501 and the base 1 are rotatably connected to each other through a bearing. A fixing piece 502 is fixedly sleeved on the surface of the rod body 501, and a transmittance detector 503 is fixedly installed on one end of the fixing piece 502. The rotation of the rod body 501 will drive the fixing piece 502 to rotate and adjust the angle of the transmittance detector 503.

[0031] refer to Figure 4 , Figure 5 , Figure 6 A supporting member 504 is fixedly installed on the other end of the fixing member 502, a CCD sensor 505 is fixedly installed on the top of the supporting member 504, and a lighting lamp 506 is fixedly installed on the bottom of the supporting member 504. The movement of the fixing member 502 will simultaneously drive the supporting member 504 to move, and the supporting member 504 will drive the CCD sensor 505 and the lighting lamp 506 to move synchronously, wherein the lighting lamp 506 illuminates the bottom of the optical lens, and then the CCD sensor 505 will shoot the optical lens from the top and transmit it to an external computer.

[0032] refer to Figure 4 , Figure 6 , Fig. 9 The driving assembly 6 includes a rotating motor 601, and a rod body 2 602 and a rod body 3 603 are respectively arranged between the multiple rod bodies 1 501. The rod body 2 602 and the rod body 3 603 are rotatably connected to the inside of the base 1 through bearings. The rotating motor 601 is fixedly connected to the inner side of the base 1, and the rod body 2 602 and the rod body 3 603 will rotate smoothly inside the base 1 through bearings.

[0033] refer to Figure 4 , Figure 6 , Fig. 9The output end of the rotating motor 601 is fixedly connected to the rod body 2 602 through a coupling, and the surfaces of the rod body 2 602 and the rod body 3 603 are fixedly connected with a gear 1 604, and the surface of the rod body 1 501 is fixedly connected with a gear 2 605. The gear 1 604 and the gear 2 605 are meshed with each other. The operation of the rotating motor 601 will drive the rod body 2 602 to rotate, and the rotation of the rod body 2 602 will drive the gear 1 604 on its surface to rotate. During the rotation of the gear 1 604, the surrounding gear 2 605 and other gear 1 604 will be driven to rotate synchronously, and at this time, the rotation of the rod body 1 501 and the rod body 3 603 will be realized.

[0034] Brief description of the use process: When using the detection platform for optical glass lenses, the operator will first place the optical lens on the transparent support plate 301, where the transparent support plate 301 will be a transparent scratch-free material. Then, the operation of the cylinder 402 will drive the shift plate 401 to move longitudinally, and multiple sets of positioning members 403 will cover the corresponding optical lens. And bring a certain pressure to the optical lens, so as to achieve the contraction of the spring 307, and make the transparent support plate 301 appear longitudinal displacement, at this time, the side ear 305 moves on the guide rod 1 306, and the guide rod 1 306 cooperates with the movement of the side ear 305 for guidance. The connecting plate 302 will be subjected to the pressure of the spring 307, and the pressure sensor 304 will cooperate with the pressure to detect, so as to know the pressure value. In this process, the optical lens will be centrally positioned on the transparent support plate 301. At the same time, when multiple optical lenses are operating, optical lenses of different thicknesses will cause the spring 307 to have different contraction degrees, and cooperate with the pressure sensor 304 to have different pressure feedback. The multiple groups of positioning members 403 have the same height after moving down. When the outer diameter of the optical lens is different in size, and the thickness is not uniform, the height of the transparent support plate 301 will be different due to the contraction degree of the spring 307, and a specific pressure feedback value will be obtained, which is more convenient for the operator to compare. After the thickness and outer diameter size detection is completed, the operating shift plate 401 returns to the initial position. Then the rotating motor 601 is operated to rotate forward, and the rotating motor 601 will drive the rod body 2 602 to rotate. The rotation of the rod body 2 602 will drive the surface gear 1 604 to rotate. During the rotation of the gear 1 604, the peripheral gear 2 605 will be driven to rotate synchronously with other gears 1 604, and the rotation of the rod body 1 501 and the rod body 3 603 will be realized. In this case, the rod body 1 501 will rotate forward by 90 degrees, and the angle of the transmittance detector 503 will be adjusted. And the transmittance detection of the optical lens is realized. Then, the motor 601 is rotated in the reverse direction and the rod body 501 is reversed by 180 degrees. The lighting lamp 506 illuminates the bottom of the optical lens. The optical lens under illumination can clearly view the surface scratches. Then, the CCD sensor 505 will shoot the optical lens from the top and transmit it to the external computer, thereby realizing the scratch detection of the optical lens. This setting can improve the process continuity of optical lens detection and effectively improve the detection efficiency of optical lenses. At the same time, in the early operation, the operator takes the optical lens and places it on the transparent support plate 301, and removes the optical lens after the detection is completed. This behavior will effectively reduce the wear and tear that may be caused to the optical lens by frequent taking and disassembly. At the same time, in the subsequent operation, the adaptive centering positioning of the optical lens can be easily completed, reducing unnecessary operations and wear and tear contacts in the positioning of the workpiece.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An optical glass lens detection platform, comprising a base (1), characterized in that: A frame (2) is fixedly mounted on the top of the base (1); a positioning component (4) and a placement component (3) are sequentially arranged at the bottom of the frame (2); a detection component (5) is arranged at the bottom of the frame (2) and is located at the rear side of the placement component (3); the placement components (3) and the detection components (5) are both multiple and equal in number; the placement component (3) comprises a transparent support plate (301); a stopper (309) is fixedly mounted on the top of the transparent support plate (301); the stopper (309) is four in number and is equidistantly distributed; and a driving component (6) is arranged inside the base (1).

2. The optical glass lens detection platform according to claim 1, characterized in that: A connecting plate (302) is provided at the bottom of the transparent support plate (301), a fixing plate (303) fixedly connected to the top of the base (1) is provided at the bottom of the connecting plate (302), a pressure sensor (304) is fixedly mounted between the fixing plate (303) and the connecting plate (302), and side ears (305) are fixedly mounted on both sides of the transparent support plate (301).

3. The optical glass lens detection platform according to claim 2, characterized in that: A guide rod 1 (306) penetrating to the top of the side ear (305) is fixedly installed on both sides of the top of the connecting plate (302); the guide rod 1 (306) and the side ear (305) are slidably connected to each other; a limit block 1 (308) is fixedly installed on the top of the guide rod 1 (306); a spring (307) is sleeved on the surface of the guide rod 1 (306); the top of the spring (307) and the side ear (305) are fixedly connected to each other; and the bottom of the spring (307) and the connecting plate (302) are fixedly connected to each other.

4. The optical glass lens detection platform according to claim 1, characterized in that: The positioning assembly (4) comprises a moving plate (401), a cylinder (402) penetrating the bottom of the frame (2) being fixedly mounted on the top of the frame (2), an output end of the cylinder (402) being fixedly connected to the top of the moving plate (401), a second guide rod (407) penetrating the top of the frame (2) being fixedly mounted on both ends of the top of the moving plate (401), the second guide rod (407) being slidably connected to the frame (2), and a second limit block (408) being fixedly mounted on the top of the second guide rod (407).

5. The optical glass lens detection platform according to claim 4, characterized in that: A circular disk (405) is provided at the bottom of the moving plate (401), wherein the number of the circular disks (405) is five and they are equally spaced, a connecting rod (406) fixedly connected to the moving plate (401) is fixedly mounted on the top of the circular disk (405), and two mutually symmetrical positioning members (403) are fixedly mounted on the bottom of the circular disk (405), and a matching groove (404) is formed between the two positioning members (403).

6. The optical glass lens detection platform according to claim 1, characterized in that: The detection assembly (5) comprises a rod body (501), wherein the rod body (501) and the base (1) are rotatably connected to each other via a bearing, a fixing member (502) is fixedly sleeved on the surface of the rod body (501), and a light transmittance detector (503) is fixedly mounted on one end of the fixing member (502).

7. The optical glass lens detection platform according to claim 6, characterized in that: A support member (504) is fixedly mounted on the other end of the fixing member (502), a CCD sensor (505) is fixedly mounted on the top of the supporting member (504), and a lighting lamp (506) is fixedly mounted on the bottom of the supporting member (504).

8. The optical glass lens detection platform according to claim 6, characterized in that: The driving assembly (6) comprises a rotating motor (601), and a rod body (602) and a rod body (603) are respectively arranged between the plurality of rod bodies (501). The rod bodies (602) and the rod bodies (603) are rotatably connected to the inside of the base (1) via bearings, and the rotating motor (601) is fixedly connected to the inner side of the base (1).

9. The optical glass lens detection platform according to claim 8, characterized in that: The output end of the rotary motor (601) is fixedly sleeved with the rod body 2 (602) via a coupling, the surfaces of the rod body 2 (602) and the rod body 3 (603) are both fixedly sleeved with a gear 1 (604), the surface of the rod body 1 (501) is fixedly sleeved with a gear 2 (605), and the gear 1 (604) and the gear 2 (605) are meshed with each other.

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