Adjustable precision fine-tuning rocker potentiometer and rocker using same

Abstract

The adjustable precise fine-tuning rocker potentiometer comprises a fine-tuning table, a potentiometer body is fixedly mounted in the middle of the top end of the fine-tuning table, a length rod is fixedly mounted in the middle of the bottom end of the fine-tuning table, and a lifting block is slidably connected to the middle of the length rod; and leveling assemblies are fixedly installed at the four corners of the bottom end of the fine adjustment table, each leveling assembly comprises a first connecting base and a supporting table, and one side of the top end of each supporting table is fixedly connected with the bottom end of the corresponding first connecting base. A user rotates the screw relative to the height shell, the height of the leveling assembly is adjusted, the lead screw rotates and ascends and descends relative to the supporting table, and the suction height of the suction cup is adjusted, so that it is guaranteed that the fine adjustment table is in a horizontal state during use, the phenomenon that the potentiometer topples over or is collided is avoided, and the service life of the potentiometer is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of rocker potentiometers, in particular to an adjustable precision fine-tuning rocker potentiometer and a rocker using the rocker potentiometer. Background Art

[0002] Fine-tuning rocker potentiometers usually have a simple structure and low manufacturing cost, so they are relatively cheap. Due to their simple structure, they are relatively easy to install and maintain, and are suitable for large-scale production and maintenance. Fine-tuning rocker potentiometers are suitable for a variety of application scenarios, such as game controllers, electronic toys, industrial control, etc., and can meet different operating requirements. In addition, fine-tuning rocker potentiometers have the following advantages in specific applications: by adjusting the resistance value of the potentiometer, the voltage and current in the circuit can be accurately controlled, thereby achieving fine adjustment of the circuit. The fine-tuning potentiometer can perform fine circuit adjustments and correct errors caused by changes in component parameters or environmental influences, making the circuit working state more stable and reliable. The fine-tuning potentiometer can control the speed, direction and stop of the motor to achieve precise control of mechanical equipment. In audio equipment, the fine-tuning potentiometer can adjust the volume and sound quality to improve the music playback effect.

[0003] The application number of the comparative document is CN202320402828.4. The utility model discloses a translational optical rocker potentiometer, comprising a shell, a circuit board and a rocker installed in the shell, a rod cap connected to the upper end of the rocker, a light beam emitting end provided at the center of the bottom end of the rocker, a light beam receiving end provided on the circuit board, a spring seat provided on the upper side of the light beam receiving end, a through hole provided in the middle of the spring seat, a spring lower limit convex ring provided on the circumference of the through hole, a spring upper limit convex ring provided at the top of the shell, a coil spring installed between the spring upper limit convex ring and the spring lower limit convex ring; a gap is left between the spring upper limit convex ring and the spring lower limit convex ring, a disk provided at the lower end of the rocker, and the disk installed in the coil spring. The utility model not only solves the drift problem caused by wear of the internal transmission components of mechanical rocker potentiometers and touch rocker potentiometers, but also solves the problem that the Hall rocker potentiometer is susceptible to magnetic interference, and has better control accuracy and longer service life.

[0004] The application number of the comparative document is CN202222456057.5. The utility model discloses a novel electromagnetic induction rocker potentiometer, comprising a bottom shell, a magnetic induction circuit board, a base, a sliding disk, a rocker, a permanent magnet, and a top cover. The magnetic induction circuit board is mounted on the bottom side of the base, and a magnetic induction module is mounted on the magnetic induction circuit board. The base includes a cavity, the sliding disk is mounted within the cavity of the base, the rocker is mounted on the sliding disk, and the lower end of the rocker is mounted with the permanent magnet, which magnetically inductively cooperates with the magnetic induction module. The top cover is mounted on the base, and a first central hole is provided in the middle of the top cover for the rocker to pass through. The utility model mounts the magnetic induction circuit board with the magnetic induction module on the bottom side of the base, and mounts the permanent magnet at the lower end of the rocker, which magnetically inductively cooperates with the magnetic induction module. As the rocker is shaken, the magnetic induction module senses the change in the magnetic field strength of the permanent magnet and outputs an induction signal. The utility model is small in size, low in cost, and has high induction accuracy.

[0005] However, the above-mentioned fine-tuning potentiometer has the following disadvantages:

[0006] When a traditional fine-tuning potentiometer is used in an unbalanced environment, the rocker potentiometer may fall over or deform due to an external force, thereby shortening the service life of the rocker potentiometer. Summary of the Invention

[0007] The purpose of the present invention is to provide an adjustable precision fine-tuning rocker potentiometer and a rocker using the rocker potentiometer, so as to solve the problem proposed in the above background technology that the traditional fine-tuning potentiometer may fall over or be deformed by external force when used in an unbalanced use environment, thereby shortening the service life of the rocker potentiometer.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable precision fine-tuning rocker potentiometer, comprising a fine-tuning platform, a potentiometer body is fixedly installed in the middle of the top of the fine-tuning platform, a length rod is fixedly installed in the middle of the bottom of the fine-tuning platform, a lifting block is slidably connected to the middle of the length rod, and a leveling assembly is fixedly installed at the four corners of the bottom of the fine-tuning platform. The four leveling assemblies all include a first connecting seat and a support platform, one side of the top of the support platform is fixedly connected to the bottom end of the first connecting seat, the first connecting seat is internally rotatably connected to the first connecting rod, and the A height shell is fixedly installed on the top of the first connecting rod, a second connecting seat is provided on the top of the height shell, a first angle seat is fixedly installed on one side of the height shell, a second angle seat is provided on one side of the first angle seat, the potentiometer body includes a bottom shell and a substrate, the bottom end of the inner wall of the bottom shell is fixedly connected to the bottom end of the substrate, a top cover is provided on the top of the bottom shell, a rocker slot is provided in the middle of the top of the top cover, a resistor is fixedly installed on the top of the substrate, a contact brush is fixedly installed on one side of the top of the resistor, and a conductor is fixedly installed in the middle of the top of the resistor.

[0009] As a preferred technical solution of the present invention, a worm gear located above the conductor is rotatably mounted on the bottom shell, a worm is rotatably connected to one side of the inner wall of the bottom shell, the worm and the worm gear are engaged with each other, an adjustment cap is fixedly mounted on one end of the worm, a plurality of pins are fixedly mounted on one side of the bottom shell, slots are provided at the four corners of the top end of the bottom shell, and columns are fixedly mounted at the four corners of the bottom end of the top cover, the four slots are respectively arranged corresponding to the four columns, and the bottom end of the bottom shell is fixedly connected to the fine-tuning platform.

[0010] As a preferred technical solution of the present invention, a spirit level is fixedly installed on the surface of the fine-tuning table, and a hook is fixedly installed on the bottom end of the length rod. The user observes the spirit level with the naked eye to understand whether the potentiometer is level. The establishment of the hook makes it convenient for the user to hang the fixed potentiometer.

[0011] As a preferred technical solution of the present invention, a screw rod is threadedly connected to the side of the top of the support platform away from the first connecting seat, and the bottom end of the screw rod is rotatably connected to the suction cup. When the user rotates the screw rod, the thread on the surface of the screw rod matches the thread on the inner wall of the support platform, so the screw rod rotates and rises relative to the support platform to adjust the adsorption height of the suction cup. The suction cup has adsorption properties, which adsorbs and fixes the leveling component at the place of use.

[0012] As a preferred technical solution of the present invention, the top end of the height shell is threadedly connected to a screw, the top end of the screw is rotatably connected to a mounting shell, the top end of the mounting shell is installed with a second connecting rod, the top end of the second connecting rod is rotatably connected to the inside of the second connecting seat, and the top ends of the four second connecting seats are fixedly connected to the side opposite the fine-tuning platform. The user holds the height shell with one hand and rotates the screw, and the thread on the surface of the screw matches the thread on the inner wall of the height shell to adjust the length of the leveling assembly.

[0013] As a preferred technical solution of the present invention, the internal rotation of the first angle seat is connected to an angle rod, one end of the angle rod is connected to the internal rotation of the second angle seat, one side of the second angle seat is fixedly connected to the lifting block, the leveling assembly is installed on the lifting block through the second angle seat, and the leveling assembly is installed on the fine-tuning platform through the second connecting seat.

[0014] As a preferred technical solution of the present invention, the surface of the lifting block is threadedly connected with a fixing screw, and the lifting block is fixedly connected to the length rod through the fixing screw. The user slides the length rod along the lifting block to fix the leveling angle of the leveling assembly, and then the user turns the fixing screw. The thread on the surface of the fixing screw matches the thread on the inner wall of the lifting block, thereby fixing the lifting block and the length rod together.

[0015] The adjustable precision fine-tuning rocker potentiometer of the present invention uses a rocker of the rocker potentiometer, including a rocker assembly, wherein the rocker assembly includes a universal bearing and a vertical rod, the top end of the universal bearing is connected to the bottom end of the vertical rod, the top end of the vertical rod is slidably connected to a sliding shell, the middle part of the sliding shell is installed with a gripping piece, the universal bearing is arranged corresponding to the rocker slot, and the installation of the universal bearing facilitates the 360-degree rotation of the rocker assembly.

[0016] As a preferred technical solution of the present invention, the surface of the sliding shell is threadedly connected with an assembly screw, and the sliding shell is fixedly connected to the vertical pole through the assembly screw. The user slides the vertical pole along the sliding shell to adjust the length of the rocker assembly, and then the user turns the assembly screw. The thread on the surface of the assembly screw matches the thread on the inner wall of the sliding shell, thereby assembling the vertical pole and the sliding shell together.

[0017] As a preferred technical solution of the present invention, the gripping piece includes a first gripping shell and two magnetic pieces. The top of the first gripping shell is provided with a second gripping shell. One side of the top of the first gripping shell and one side of the bottom of the second gripping shell are respectively fixedly connected to one end of the two magnetic pieces. The other side of the top of the first gripping shell and the other side of the bottom of the second gripping shell are both provided with magnetic positioning grooves. The two magnetic pieces are respectively arranged corresponding to the two magnetic positioning grooves. The middle part of the first gripping shell and the middle part of the second gripping shell are both provided with movable grooves. The inside of the two movable grooves are fixedly installed with magnetic rings. The two magnetic rings are magnetically connected to the sliding shell. Several grooves are provided on the surface of the second gripping shell. The first gripping shell and the second gripping shell are magnetically fixed to the sliding shell through magnetic rings. The opening of the grooves increases the unevenness of the second gripping shell itself, thereby improving the stability of the user holding the joystick.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting up the leveling assembly, the user slides the length rod along the lifting block to fix the leveling angle of the leveling assembly. The user rotates the screw relative to the height shell to adjust the height of the leveling assembly. The screw rotates and rises relative to the support table to adjust the height of the suction cup. This ensures that the fine-tuning table is in a horizontal state when in use, avoids the potentiometer from tipping over or being bumped, and extends the service life of the potentiometer.

[0020] 2. By setting the vertical rod and the sliding shell, the sliding shell slides relative to the vertical rod to adjust the use length of the rocker, thereby improving the flexibility of the potentiometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a partial schematic diagram of the present invention;

[0022] Figure 2 is a side view of the present invention;

[0023] Figure 3 A connection diagram of the fine adjustment platform and the leveling assembly of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the potentiometer body of the present invention;

[0025] Figure 5 is a side view of the rocker assembly of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the gripping piece of the present invention.

[0027] In the figure: 1. Fine adjustment table; 2. Level; 3. Potentiometer body; 301. Bottom shell; 302. Adjustment cap; 303. Worm; 304. Worm gear; 305. Conductor; 306. Contact brush; 307. Resistor; 308. Substrate; 309. Pin; 310. Slot; 311. Top cover; 312. Column; 313. Rocker slot; 4. Leveling assembly; 401. Second connecting seat; 402. Mounting shell; 403. Screw; 404. Height shell; 405. First connecting seat; 406. Support platform; 407. Suction cup; 408. Screw rod; 409. First connecting rod; 410. Second connecting rod; 411. First angle seat; 412. Angle rod; 413. Second angle seat; 5. Length rod; 6. Hook; 7. Lifting block; 8. Fixing screw; 9. Rocker assembly; 91. Universal bearing; 92. Vertical rod; 93. Gripping piece; 931. First gripping shell; 932. Magnetic positioning groove; 933. Magnetic sheet; 934. Groove; 935. Movable slot; 936. Magnetic ring; 94. Sliding shell; 95. Assembly screw. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-6 The present invention provides an adjustable precision fine-tuning rocker potentiometer and a rocker using the rocker potentiometer, comprising a fine-tuning platform 1, a potentiometer body 3 fixedly mounted in the middle of the top of the fine-tuning platform 1, a length rod 5 fixedly mounted in the middle of the bottom of the fine-tuning platform 1, a lifting block 7 slidably connected to the middle of the length rod 5, and a leveling assembly 4 fixedly mounted on the four corners of the bottom of the fine-tuning platform 1. The four leveling assemblies 4 each include a first connecting seat 405 and a support platform 406. One side of the top of the support platform 406 is fixedly connected to the bottom end of the first connecting seat 405. The first connecting seat 405 is internally rotatably connected to a first connecting rod 409. The top of the first connecting rod 409 is fixedly mounted with a height housing. 404, a second connecting seat 401 is provided at the top of the height shell 404, a first angle seat 411 is fixedly installed on one side of the height shell 404, a second angle seat 413 is provided on one side of the first angle seat 411, the potentiometer body 3 includes a bottom shell 301 and a substrate 308, the bottom end of the inner wall of the bottom shell 301 is fixedly connected to the bottom end of the substrate 308, a top cover 311 is provided at the top of the bottom shell 301, a rocker slot 313 is opened in the middle of the top of the top cover 311, a resistor 307 is fixedly installed at the top of the substrate 308, a contact brush 306 is fixedly installed on one side of the top of the resistor 307, and a conductor 305 is fixedly installed in the middle of the top of the resistor 307.

[0030] A worm gear 304 located above the conductor 305 is rotatably mounted on the bottom shell 301. A worm 303 is rotatably connected to one side of the inner wall of the bottom shell 301. The worm 303 and the worm gear 304 are engaged with each other. An adjustment cap 302 is fixedly mounted on one end of the worm 303. Several pins 309 are fixedly mounted on one side of the bottom shell 301. Slots 310 are provided at the four corners of the top end of the bottom shell 301. Columns 312 are fixedly mounted at the four corners of the bottom end of the top cover 311. The four slots 310 are respectively arranged corresponding to the four columns 312. The bottom end of the bottom shell 301 is fixedly connected to the fine-tuning stage 1.

[0031] A level 2 is fixedly mounted on the surface of the fine-tuning table 1, and a hook 6 is fixedly mounted on the bottom end of the length rod 5. The user can observe the level 2 to see whether the potentiometer is horizontal by naked eyes. The setting of the hook 6 is convenient for the user to hang the potentiometer.

[0032] A screw rod 408 is threadedly connected to one side of the top of the support platform 406 away from the first connecting seat 405, and the bottom end of the screw rod 408 is rotatably connected to the suction cup 407. When the user rotates the screw rod 408, the thread on the surface of the screw rod 408 matches the thread on the inner wall of the support platform 406, so the screw rod 408 rotates and rises relative to the support platform 406 to adjust the adsorption height of the suction cup 407. The suction cup 407 has adsorption properties, which adsorbs and fixes the leveling component 4 at the place of use.

[0033] The top of the height shell 404 is threadedly connected to the screw 403, and the top of the screw 403 is rotatably connected to the mounting shell 402. The top of the mounting shell 402 is installed with a second connecting rod 410, and the top of the second connecting rod 410 is rotatably connected to the inside of the second connecting seat 401. The tops of the four second connecting seats 401 are all fixedly connected to the side facing the fine-tuning platform 1. The user holds the height shell 404 with one hand and rotates the screw 403. The thread on the surface of the screw 403 matches the thread on the inner wall of the height shell 404 to adjust the length of the leveling component 4.

[0034] The internal rotation of the first angle seat 411 is connected to the angle rod 412, one end of the angle rod 412 is connected to the internal rotation of the second angle seat 413, one side of the second angle seat 413 is fixedly connected to the lifting block 7, the leveling component 4 is installed on the lifting block 7 through the second angle seat 413, and the leveling component 4 is installed on the fine-tuning platform 1 through the second connecting seat 401.

[0035] The surface of the lifting block 7 is threadedly connected with a fixing screw 8, and the lifting block 7 is fixedly connected to the length rod 5 through the fixing screw 8. The user slides the length rod 5 along the lifting block 7 to fix the leveling angle of the leveling assembly 4, and then the user turns the fixing screw 8. The thread on the surface of the fixing screw 8 matches the thread on the inner wall of the lifting block 7, thereby fixing the lifting block 7 and the length rod 5 together.

[0036] The adjustable precision fine-tuning rocker potentiometer of the present invention uses a rocker of the rocker potentiometer, including a rocker assembly 9, which includes a universal bearing 91 and a vertical rod 92. The top end of the universal bearing 91 is connected to the bottom end of the vertical rod 92, and the top end of the vertical rod 92 is slidably connected to a sliding shell 94. A gripping piece 93 is installed in the middle of the sliding shell 94. The universal bearing 91 is corresponding to the rocker slot 313. The installation of the universal bearing 91 facilitates the 360-degree rotation of the rocker assembly 9.

[0037] The surface of the sliding shell 94 is threadedly connected with an assembly screw 95, and the sliding shell 94 is fixedly connected to the vertical rod 92 through the assembly screw 95. The user slides the vertical rod 92 along the sliding shell 94 to adjust the length of the rocker assembly 9, and then the user turns the assembly screw 95. The thread on the surface of the assembly screw 95 matches the thread on the inner wall of the sliding shell 94, thereby assembling the vertical rod 92 and the sliding shell 94 together.

[0038] The gripping piece 93 includes a first gripping shell 931 and two magnetic pieces 933. A second gripping shell is provided at the top of the first gripping shell 931. One side of the top of the first gripping shell 931 and one side of the bottom of the second gripping shell are respectively fixedly connected to one end of the two magnetic pieces 933. The other side of the top of the first gripping shell 931 and the other side of the bottom of the second gripping shell are both provided with magnetic positioning grooves 932. The two magnetic pieces 933 are respectively arranged corresponding to the two magnetic positioning grooves 932. The middle part of the first gripping shell 931 and the middle part of the second gripping shell are both provided with movable grooves 935. Magnetic rings 936 are fixedly installed inside the two movable grooves 935. The two magnetic rings 936 are both magnetically connected to the sliding shell 94. Several grooves 934 are provided on the surface of the second gripping shell. The first gripping shell 931 and the second gripping shell are magnetically fixed to the sliding shell 94 through the magnetic rings 936. The opening of the grooves 934 increases the unevenness of the second gripping shell itself, thereby improving the stability of the user holding the joystick.

[0039] In the present invention, the user slides the length rod 5 along the lifting block 7 to fix the leveling angle of the leveling component 4, and then the user screws the fixing screw 8, and the thread on the surface of the fixing screw 8 matches the thread on the inner wall of the lifting block 7, so as to fix the lifting block 7 and the length rod 5 together. The user holds the height shell 404 with one hand and rotates the screw 403, and the thread on the surface of the screw 403 matches the thread on the inner wall of the height shell 404 to adjust the length of the leveling component 4. The user rotates the screw rod 408, and the thread on the surface of the screw rod 408 matches the thread on the inner wall of the support platform 406. Therefore, the screw rod 408 rotates and rises relative to the support platform 406 to adjust the adsorption height of the suction cup 407. The suction cup 407 has It has adsorption properties, and the leveling component 4 is adsorbed and fixed at the place of use. The user observes the level 2 with the naked eye to understand whether the potentiometer is level. If it is not level, the leveling component 4 is readjusted. The establishment of the hook 6 is convenient for the user to hang and fix the potentiometer. The user slides the vertical rod 92 along the sliding shell 94 to adjust the length of the rocker assembly 9, and then the user turns the assembly screw 95. The thread on the surface of the assembly screw 95 matches the thread on the inner wall of the sliding shell 94 to assemble the vertical rod 92 and the sliding shell 94 together. The installation of the universal bearing 91 facilitates the 360-degree rotation of the rocker assembly 9. The opening of the groove 934 increases the unevenness of the second grip shell itself, thereby improving the stability of the user holding the rocker.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable precision fine-tuning rocker potentiometer, comprising a fine-tuning platform (1), characterized in that: A potentiometer body (3) is fixedly mounted in the middle of the top of the fine-tuning platform (1), a length rod (5) is fixedly mounted in the middle of the bottom of the fine-tuning platform (1), a lifting block (7) is slidably connected to the middle of the length rod (5), and a leveling assembly (4) is fixedly mounted on the four corners of the bottom of the fine-tuning platform (1). The four leveling assemblies (4) each include a first connecting seat (405) and a support platform (406), one side of the top of the support platform (406) is fixedly connected to the bottom of the first connecting seat (405), a first connecting rod (409) is rotatably connected inside the first connecting seat (405), a height shell (404) is fixedly mounted on the top of the first connecting rod (409), and a second connecting seat is provided on the top of the height shell (404). (401), a first angle seat (411) is fixedly installed on one side of the height shell (404), a second angle seat (413) is provided on one side of the first angle seat (411), the potentiometer body (3) comprises a bottom shell (301) and a substrate (308), the bottom end of the inner wall of the bottom shell (301) is fixedly connected to the bottom end of the substrate (308), a top cover (311) is provided on the top of the bottom shell (301), a rocker slot (313) is provided in the middle of the top of the top cover (311), a resistor (307) is fixedly installed on the top of the substrate (308), a contact brush (306) is fixedly installed on one side of the top of the resistor (307), and a conductor (305) is fixedly installed in the middle of the top of the resistor (307).

2. The adjustable precision fine-tuning rocker potentiometer according to claim 1, characterized in that: A worm gear (304) located above the conductor (305) is rotatably mounted on the bottom shell (301); a worm (303) is rotatably connected to one side of the inner wall of the bottom shell (301); the worm (303) and the worm gear (304) are meshed with each other; an adjustment cap (302) is fixedly mounted on one end of the worm (303); a plurality of pins (309) are fixedly mounted on one side of the bottom shell (301); four corners of the top end of the bottom shell (301) are provided with card slots (310); four corners of the bottom end of the top cover (311) are fixedly mounted with card posts (312); the four card slots (310) are respectively arranged corresponding to the four card posts (312); and the bottom end of the bottom shell (301) is fixedly connected to the fine-tuning platform (1).

3. The adjustable precision fine-tuning rocker potentiometer according to claim 1, characterized in that: A level (2) is fixedly mounted on the surface of the fine-tuning platform (1), and a hook (6) is fixedly mounted on the bottom end of the length rod (5).

4. The adjustable precision fine-tuning rocker potentiometer according to claim 1, characterized in that: A screw rod (408) is threadedly connected to one side of the top of the support platform (406) away from the first connecting seat (405), and a suction cup (407) is rotatably connected to the bottom end of the screw rod (408).

5. The adjustable precision fine-tuning rocker potentiometer according to claim 1, characterized in that: The top end of the height housing (404) is threadedly connected to a screw rod (403), the top end of the screw rod (403) is rotatably connected to a mounting housing (402), the top end of the mounting housing (402) is mounted with a second connecting rod (410), the top end of the second connecting rod (410) is rotatably connected to the inside of a second connecting seat (401), and the top ends of the four second connecting seats (401) are all fixedly connected to a side directly opposite to the fine-tuning platform (1).

6. The adjustable precision fine-tuning rocker potentiometer according to claim 1, characterized in that: The first angle seat (411) is internally rotatably connected to an angle rod (412), one end of the angle rod (412) is internally rotatably connected to the second angle seat (413), and one side of the second angle seat (413) is fixedly connected to the lifting block (7).

7. The adjustable precision fine-tuning rocker potentiometer according to claim 1, characterized in that: The surface of the lifting block (7) is threadedly connected with a fixing screw (8), and the lifting block (7) is fixedly connected to the length rod (5) via the fixing screw (8).

8. The adjustable precision fine-tuning rocker potentiometer according to any one of claims 1 to 7 uses a rocker of the rocker potentiometer, comprising a rocker assembly (9), characterized in that: The rocker assembly (9) includes a universal bearing (91) and a vertical rod (92). The top end of the universal bearing (91) is connected to the bottom end of the vertical rod (92). The top end of the vertical rod (92) is slidably connected to a sliding shell (94). A gripping piece (93) is installed in the middle of the sliding shell (94). The universal bearing (91) is correspondingly arranged with the rocker slot (313).

9. The adjustable precision fine-tuning rocker potentiometer according to claim 8 uses a rocker of the rocker potentiometer, characterized in that: The surface of the sliding shell (94) is threadedly connected with an assembly screw (95), and the sliding shell (94) is fixedly connected to the vertical pole (92) through the assembly screw (95).

10. The adjustable precision fine-tuning rocker potentiometer according to claim 8 uses a rocker potentiometer, characterized in that: The gripping member (93) comprises a first gripping shell (931) and two magnetic sheets (933). The top of the first gripping shell (931) is provided with a second gripping shell. One side of the top of the first gripping shell (931) and one side of the bottom of the second gripping shell are respectively fixedly connected to one end of the two magnetic sheets (933). The other side of the top of the first gripping shell (931) and the other side of the bottom of the second gripping shell are both provided with magnetic positioning grooves (932). The two magnetic sheets (933) are respectively arranged corresponding to the two magnetic positioning grooves (932). The middle of the first gripping shell (931) and the middle of the second gripping shell are both provided with movable grooves (935). The inside of the two movable grooves (935) are both fixedly installed with magnetic rings (936). The two magnetic rings (936) are both magnetically connected to the sliding shell (94). The surface of the second gripping shell is provided with a plurality of grooves (934).

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