A variable pattern red dot sighting scope battery hand wheel mechanism with rotationally adjusted brightness

Abstract

The application discloses a variable-pattern red dot sighting telescope battery hand wheel mechanism capable of rotating and adjusting brightness, which comprises a rotatable hand wheel, a positioning assembly with the hand wheel and fixed at one end of a mirror seat, and a circuit assembly fixed in the hand wheel. The positioning assembly comprises an electrode plate and positive and negative electrode contacts fixed on the electrode plate, and is further matched with a toothed washer and an elastic pressing plate to accurately position the rotation angle of the hand wheel and limit the axial degree of freedom. The circuit board of the circuit assembly is provided with a negative electrode pin and a plurality of surrounding positive electrode pins. When the hand wheel is rotated to different gears, the negative electrode pin is always in contact with the negative electrode contact, and the positive electrode contact is in contact with different positive electrode pins. The negative electrode pin is connected with a resistor, and the different contact states of the positive electrode pins change the circuit resistance value, so that the current and brightness are adjusted, and the brightness of the red dot is adjusted.

Description

Technical Field

[0001] This invention belongs to the field of aiming scope technology, and particularly relates to a battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness. Background Technology

[0002] A scope (also known as an optical sight, aiming device, or rifle scope) is an optical instrument used to improve shooting accuracy. It is typically mounted on firearms, crossbows, telescopes, stage lights, or other shooting weapons. Its core function is to help the user observe the target more clearly and improve the hit rate.

[0003] A scope generates a red dot in the field of view for aiming. Because the brightness of the red dot needs to be adjusted in time in environments with different lighting conditions, it can improve adaptability. Summary of the Invention

[0004] The purpose of this invention is to provide a rotating brightness adjustment mechanism for a variable pattern red dot sight battery handwheel, in order to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a rotating brightness adjustment mechanism for a variable pattern red dot sight battery handwheel, comprising:

[0006] A handwheel is rotatably located on the outer side of the mirror base;

[0007] A positioning component is built into the handwheel, and one end of the positioning component is fixedly connected to the mirror base. The inner end of the handwheel is configured and positioned in conjunction with a portion of the positioning component. When the handwheel is rotated for adjustment, it can be positioned at different gears under the action of the positioning component.

[0008] The positioning component includes an electrode plate and multiple electrodes, with the multiple electrodes fixed on the end face of the electrode plate and forming positive and negative contacts respectively.

[0009] A circuit assembly, fixed inside the handwheel, includes a circuit board on which positive and negative pins are soldered. The negative pin is located in the center of the circuit board, and multiple positive pins are arranged around the center of the circuit board. The positive pins are in conductive contact with the positive contact, and the negative pins are in conductive contact with the corresponding negative contact. When the handwheel is rotated to different positions, the negative pins are always in contact with the negative contact, and the positive contact contacts the positive pins at different positions, thereby changing the resistance in the circuit and achieving different brightness output currents.

[0010] In a further embodiment of the present invention, the positioning component includes an elastic pressure plate, and the electrode plate is integrally fixed to the side of the mirror base by screws. The handwheel is axially limited by the elastic pressure plate so that the handwheel only has rotational freedom. First positioning protrusions are symmetrically formed on both sides of the elastic pressure plate, and the first positioning protrusions have an arc-shaped raised structure.

[0011] In a further embodiment of the present invention, a toothed washer is further included. A second positioning protrusion is formed around the upper edge of the toothed washer. A retaining groove is formed around the upper edge of one end of the handwheel. The toothed washer is fixed inside the handwheel, and the second positioning protrusion is positioned corresponding to the retaining groove. The elastic pressure plate is attached to the outer side of the toothed washer. At the same time, the first positioning protrusion and the second positioning protrusion are positioned and cooperated with each other, so that when the handwheel rotates, the first positioning protrusion cooperates with the second positioning protrusion at different positions to position the handwheel at different gears.

[0012] In a further embodiment of the present invention, positioning blocks are symmetrically arranged on both sides of the inner wall of the handwheel, and positioning grooves are opened on both sides of the circuit board corresponding to the positions of the positioning blocks. When the circuit board is built into the handwheel, the positioning grooves and positioning blocks are engaged and fixed.

[0013] In a further embodiment of the present invention, the circuit assembly includes a positive electrode and a negative electrode. The negative electrode is soldered to the center of the outer side of the circuit board and is electrically connected to the negative electrode pin. The positive electrode is soldered to the outer side of the circuit board and is electrically connected to the positive electrode pin. An insulating pad is also provided between the positive electrode and the negative electrode to prevent short circuits between the positive electrode and the negative electrode.

[0014] In a further embodiment of the present invention, the positive pins on the circuit board are provided in two concentric rings, an outer ring and an inner ring. The outer ring has a number of positive pins arranged in a fan shape, and the inner ring has two symmetrical parts arranged in a fan shape. Each positive pin in the first part near the outer ring corresponds radially to each positive pin in the outer ring. When the handwheel is rotated at different angles, the negative contact always contacts the negative pin. The positive contact can be connected to the positive pins in the first part alone. The positive contact can also be connected in series with the positive pins in the second part and the positive pins in the outer ring at the same time. Each positive pin on the circuit board is connected to a resistor.

[0015] In a further embodiment of the present invention, the invention further includes a button cell battery and an EVA gasket, wherein the EVA gasket presses the button cell battery so that the button cell battery simultaneously contacts and conducts electricity with the positive electrode and the negative electrode.

[0016] In a further embodiment of the present invention, a C-shaped retaining ring is also included, which is used to fix the circuit board inside the handwheel.

[0017] In a further embodiment of the present invention, a friction washer and a sealing ring are also included. The friction washer is disposed between the mirror base and the handwheel to reduce friction between the handwheel and the mirror base. The sealing ring is sleeved on one end of the handwheel and is sealed to the mirror base.

[0018] In a further embodiment of the present invention, a battery cover is also included, which is disposed inside the other end of the handwheel cover and presses down the EVA gasket, and a sealing ring is fitted on the battery cover.

[0019] The beneficial effects of this invention are:

[0020] The positioning component is built into the handwheel and fixed at one end to the side of the mirror mount. A toothed washer is fixed inside the handwheel, and the toothed washer and the elastic pressure plate are positioned together, allowing for precise positioning of the handwheel's rotation angle during adjustment. Simultaneously, the elastic pressure plate restricts the handwheel's axial freedom. The circuit component is in contact with the electrode plate, which has positive and negative contacts. The circuit board has positive and negative leads, with the negative contact always in contact with the negative lead. A resistor is connected to the negative lead, which has inner and outer rings, with the inner ring including the first part. The second part of the circuit assembly also includes a positive electrode and a negative electrode. The positive electrode is connected to the positive pin, and the negative electrode is connected to the negative pin. The positive electrode and the negative electrode are separated by an insulating pad to avoid short circuit. When the handwheel is rotated, the positive contact can be connected to the positive pin of the first part alone. It can also be rotated to other positions and simultaneously connected to the positive pin of the second part and the outer ring to form a parallel connection. This allows the resistance value in the circuit to be different at different angles of the handwheel, resulting in different current outputs and different red dot brightness levels. This constitutes the adjustment of the red dot brightness levels, achieving brightness adaptability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is an exploded structural diagram of the present invention;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is a plan view of the circuit board of the present invention;

[0025] Figure 5 This is a circuit diagram showing the connection of the resistor in this invention. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0031] This embodiment provides a rotating brightness adjustment mechanism for a variable pattern red dot sight battery handwheel, including:

[0032] The handwheel 1 is rotatably disposed on the outer side of the mirror base 2, and also includes a friction washer 3 and a sealing ring 4. The friction washer 3 is disposed between the mirror base 2 and the handwheel 1 to reduce friction between the handwheel 1 and the mirror base 2. The sealing ring 4 is sleeved on one end of the handwheel 1 and sealed to the mirror base 2, thereby improving the sealing and waterproof performance between the mechanism and the mirror base 2.

[0033] A positioning component is built into the handwheel 1, and one end of the positioning component is fixedly connected to the mirror base 2. The inner end of the handwheel 1 is partially configured and positioned with the positioning component. When the handwheel 1 is rotated for adjustment, it can be positioned at different gears under the action of the positioning component.

[0034] The positioning component includes an electrode plate 6 and multiple electrodes 5. The multiple electrodes 5 are fixed on the end face of the electrode plate 6 and respectively form a positive electrode contact 60 and a negative electrode contact 61. In this embodiment, there is only one negative electrode contact 61, which is located in the middle of the electrode plate 6. There are two positive electrode contacts 60, which are symmetrically arranged on both sides of the negative electrode contact 61. The positive electrode contact 60 and the negative electrode contact 61 are metal parts.

[0035] A circuit assembly, fixed inside the handwheel 1, includes a circuit board 7. Positive pins 70 and negative pins 71 are soldered onto the circuit board 7. The negative pin 71 is located in the center of the circuit board 7. Multiple positive pins 70 are arranged around the center of the circuit board 7, and each positive pin 70 is in conductive contact with a positive contact 60. Similarly, each negative pin 71 is in conductive contact with a negative contact 61. When the handwheel 1 is rotated to different positions, the negative pin 71 remains in contact with the negative contact 61. The positive contact 60 contacts different positions of the positive pins 70, thus changing the resistance in the circuit and achieving different brightness outputs. Each positive pin 70 is connected to a resistor 8, which can be changed to different values. Depending on the rotation of the handwheel 1, the positive contact 60 contacts different positions of the positive pins 70, resulting in different resistance values ​​in the circuit. Therefore, the total resistance in the circuit varies, causing changes in the current and resulting in different brightness outputs.

[0036] In this embodiment, a further implementation is that the positioning component includes an elastic pressure plate 9, and the electrode plate 6 is integrally fixed to the side of the mirror base 2 by screws 10. The handwheel 1 is axially limited by the elastic pressure plate 9 so that the handwheel 1 only has rotational freedom. The elastic pressure plate 9 has symmetrical first positioning protrusions 90 on both sides. The first positioning protrusions 90 have an arc-shaped raised structure. The elastic pressure plate 9 is a metal part.

[0037] In addition to its axial limiting and positioning functions, the elastic pressure plate 9 also serves as a backup grounding path for the circuit. When a grounding failure occurs in the circuit components, a temporary conductive channel is formed through the contact between the elastic pressure plate 9 and the scope mount 2, preventing the red dot from suddenly extinguishing. The arc-shaped raised first positioning protrusion 90 undergoes slight elastic deformation during rotation. This deformation absorbs the vibration energy from the rotation of the handwheel 1, making the adjustment process smoother and reducing accidental gear activation due to hand tremors. At the same time, the elastic pressure plate 9, fixed to the scope mount 2 by screws 10, forms a simple heat dissipation structure. The heat generated by the circuit components during operation can be conducted to the scope mount 2 through the elastic pressure plate 9 for dissipation, reducing the temperature rise of the circuit board 7 and preventing high temperatures from affecting the performance of components such as the resistor 8. Furthermore, the metal elastic pressure plate 9 also enhances the structural strength of the connection between the handwheel 1 and the scope mount 2. When the scope is impacted, it can buffer some of the impact force, reducing damage to the internal circuit components and positioning components of the handwheel 1.

[0038] In this embodiment, a further implementation includes a toothed washer 11, with a second positioning protrusion 110 circumferentially formed along the upper edge of the toothed washer 11. A retaining groove 1A is circumferentially formed along the upper edge of one end of the handwheel 1. The toothed washer 11 is fixed inside the handwheel 1, and the second positioning protrusion 110 is positioned corresponding to the retaining groove 1A. The elastic pressure plate 9 is attached to the outer side of the toothed washer 11. Figure 4 Simultaneously, the first positioning protrusion 90 and the second positioning protrusion 110 are positioned and engaged, so that when the handwheel 1 rotates, the first positioning protrusion 90 engages with the second positioning protrusion 110 at different positions to position the handwheel 1 at different gears based on the rotation angle. Due to the engagement of the first positioning protrusion 90 and the second positioning protrusion 110, when the handwheel 1 is rotated, the handwheel 1 and the toothed washer 11 rotate as a whole. When the second positioning protrusion 110 disengages from the first positioning protrusion 90 and rotates to the next positioning position, the first positioning protrusion 90 and the second positioning protrusion 110 engage and position again, thereby positioning the rotation angle of the handwheel 1 to form the corresponding gear.

[0039] The toothed washer 11, with its circumferentially distributed second positioning protrusion 110 and the bayonet 1A, forms a barrier similar to a "maze seal," preventing dust from entering the interior through the gap between the handwheel 1 and the mirror base 2. Combined with the sealing ring 4, this further enhances the overall dustproof level. When the handwheel 1 rotates, the contact and separation of the second positioning protrusion 110 and the first positioning protrusion 90 produces a regular "clicking" sensation and a slight sound, providing the user with both tactile and auditory feedback. This allows for accurate judgment of gear shifting even in dim lighting or when operating with gloves. Simultaneously, the toothed washer 11 acts as a buffer between the handwheel 1 and the elastic pressure plate 9, dispersing the axial pressure of the elastic pressure plate 9 on the handwheel 1. This prevents deformation of the handwheel 1 end due to concentrated force after prolonged use, extending the lifespan of the handwheel 1. Furthermore, the even distribution of the second positioning protrusion 110 balances the force during handwheel 1 rotation, reducing rotational misalignment caused by localized wear and ensuring the positive contact 60... It maintains stable contact with the positive pin 70 at all times.

[0040] In this embodiment, a further implementation is that positioning blocks 1B are symmetrically arranged on both sides of the inner wall of the handwheel 1, and positioning grooves 72 are opened on both sides of the circuit board 7 corresponding to the positions of the positioning blocks 1B. When the circuit board 7 is built into the handwheel 1, the positioning grooves 72 and the positioning blocks 1B are engaged and fixed. Through the cooperation of the positioning blocks 1B and the positioning grooves 72, the circuit board 7 can be quickly fixed in the handwheel 1 to prevent rotation and improve the adjustment accuracy. The precise fit between the positioning block 1B and the positioning groove 72 forms an assembly guide structure, which can prevent misalignment of the positive pin 70 and the positive contact 60 due to misalignment during the installation of the circuit board 7, thus reducing the assembly error rate. The snap-fit ​​part can distribute the force on the circuit board 7 under the recoil of the firearm, reduce the risk of solder joint detachment, and improve circuit stability. At the same time, the positioning block 1B can serve as a support point for the circuit board 7, preventing it from undergoing slight deformation due to vibration and ensuring uniform contact pressure between the positive pin 70 and the positive contact 60. In addition, this structure can also limit the axial displacement of the circuit board 7, forming a double fixation with the C-shaped retaining ring 17, preventing the button battery 15 from causing the circuit board 7 to shift under pressure, and ensuring stable circuit conduction.

[0041] In this embodiment, a further implementation is that the circuit assembly includes a positive electrode 12 and a negative electrode 13. The negative electrode 13 is soldered to the center of the outer side of the circuit board 7 and is electrically connected to the negative electrode pin 71. The positive electrode 12 is soldered to the outer side of the circuit board 7 and is electrically connected to the positive electrode pin 70. An insulating pad 14 is also provided between the positive electrode 12 and the negative electrode 13 to prevent short circuits between them, thereby improving circuit safety. The positive electrode 12 and negative electrode 13, acting as transitional components for current conduction, increase the contact area with the button battery 15, reduce contact resistance, and make current conduction more stable, avoiding fluctuations in red dot brightness due to poor contact. The welding fixing method enhances the connection strength between the two and the circuit board 7, resisting high-frequency vibrations during gun firing and reducing the risk of pin detachment. The insulating pad 14 isolates the positive and negative electrodes while also buffering the pressure of the button battery 15 on the circuit board 7, preventing deformation of the circuit board 7 due to long-term pressure. In addition, the positive electrode 12 and negative electrode 13 can disperse the current distribution on the circuit board 7, reducing the heat generated by local current concentration and extending the service life of the circuit board 7 and components such as the resistor 8.

[0042] In this embodiment, a further implementation is that the positive pins 70 on the circuit board 7 are provided in two concentric rings, an outer ring and an inner ring. The outer ring has several positive pins 70 arranged in a fan shape, while the inner ring has two symmetrical parts arranged in a fan shape. Each positive pin 70 near the first part of the outer ring corresponds radially to each positive pin 70 of the outer ring. When the handwheel 1 is rotated at different angular positions, the negative contact 61 always contacts the negative pin 71, and the positive contact 60 can independently contact the first part... The positive pin 70 of the inner ring is turned on, and the positive contact 60 can also be connected in series with the positive pin 70 of the second part and the positive pin 70 of the outer ring. Each positive pin 70 on the circuit board 7 is connected to a resistor 8. For example, the resistors 8 connected to the positive pins 70 of the first part of the inner ring are numbered R1-R5, and the resistance value of each resistor 8 can increase or decrease sequentially. The resistors 8 of the second part are numbered R6-R10, and the resistors 8 of the outer ring are numbered R11-R15. (Reference) Figure 5 Within a certain angle range, the positive contact 60 is connected to any one of the resistors 8 from R1 to R5, and only a single resistor 8 exists in the circuit. When rotated to other angles, the positive contact 60 connects R6 and R11 in parallel or R7 and R12 in parallel. According to this connection method, the last setting is the parallel connection of R10 and R15, so that the resistance value in the circuit is different at each angle. When the voltage is the same, the current is different, thus forming different brightness outputs. The radial correspondence between the first part of the inner ring and the positive pin 70 of the outer ring allows for quick visual alignment during assembly to determine the relative position of the circuit board 7 and the handwheel 1, reducing assembly errors. The parallel design of the resistors 8 (such as R6 and R11) reduces the power load of a single resistor 8 (from 0.2W to 0.1W), extending the resistor's lifespan. Furthermore, if a resistor fails unexpectedly (such as R6 being open-circuited), a partial brightness level can still be maintained by connecting the corresponding resistor in the outer ring (R11), preventing complete failure. The fan-shaped pin arrangement causes the contact area between the positive contact 60 and the pin to gradually change during rotation, reducing red dot flickering caused by sudden current changes. The inner and outer ring structures can expand brightness levels by reserving pin positions (such as increasing the number of pins in the outer ring) without redesigning the main structure of the circuit board 7. In addition, the parallel path between the second part of the inner ring and the outer ring pins creates a current shunt, reducing the heat generated by the positive pin 70 and preventing pin oxidation due to high temperatures.

[0043] In this embodiment, a further implementation includes a button battery 15 and an EVA gasket 16. The EVA gasket 16 presses the button battery 15 so that the button battery 15 simultaneously contacts and conducts electricity with the positive electrode 12 and the negative electrode 13. It also includes a C-shaped retaining ring 17, which is used to fix the circuit board 7 inside the handwheel 1. It also includes a battery cover 18, which is placed inside the other end of the handwheel 1 cover and presses down the EVA gasket 16. A sealing ring 4 is fitted on the battery cover 18, thereby forming a complete mechanism that has qualified waterproof performance while maintaining normal operation of the mechanism. The elastic clamping action of the EVA gasket 16 can accommodate button batteries 15 of different thicknesses (compatible with CR2032 / CR2025 models), avoiding poor contact due to differences in battery specifications; the elastic fixing of the C-shaped retaining ring 17 can buffer the impact of gun vibration on the circuit board 7, reduce solder joint stress, and its easy disassembly and assembly can shorten battery replacement time (the retaining ring can be removed in just 3 seconds); the structure of the battery cover 18 pressing down on the EVA gasket 16 can form a pre-tightening force, so that the contact pressure between the button battery 15 and the positive electrode 12 and the negative electrode 13 is stabilized at 0.5-1N, avoiding brightness drift caused by fluctuations in contact resistance; in addition, the sealing ring 4 on the battery cover 18 and the EVA gasket 16 form a double seal, which not only waterproofs but also prevents dust from entering the battery compartment, reducing electrode oxidation, while the heat insulation properties of the EVA gasket 16 can reduce the impact of external temperature changes on the button battery 15, extending the battery life in low-temperature environments.

[0044] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A rotating handwheel mechanism for adjusting the brightness of a variable pattern red dot sight battery, characterized in that, include: A handwheel is rotatably located on the outer side of the mirror base; A positioning component is built into the handwheel, and one end of the positioning component is fixedly connected to the mirror base. The inner end of the handwheel is configured and positioned in conjunction with a portion of the positioning component. When the handwheel is rotated for adjustment, it can be positioned at different gears under the action of the positioning component. The positioning component includes an electrode plate and multiple electrodes, with the multiple electrodes fixed on the end face of the electrode plate and forming positive and negative contacts respectively. A circuit assembly, fixed inside the handwheel, includes a circuit board on which positive and negative pins are soldered. The negative pin is located in the middle of the circuit board, and multiple positive pins are arranged around the center of the circuit board. The positive pins are in conductive contact with the positive contact, and the negative pins are in conductive contact with the corresponding negative contact. When the handwheel is rotated to different positions, the negative pins are always in contact with the negative contact, and the positive contact contacts the positive pins at different positions, thereby changing the resistance value in the circuit and achieving different brightness output currents. The positive pins on the circuit board are arranged in two concentric rings, an outer ring and an inner ring. The outer ring has several positive pins arranged in a fan shape, while the inner ring has two symmetrical parts arranged in a fan shape. Each positive pin in the first part closest to the outer ring corresponds radially to each positive pin in the outer ring. When the handwheel is rotated at different angles, the negative contact always contacts the negative pin. The positive contact can be connected to the positive pins in the first part independently. The positive contact can also be connected in series with the positive pins in the second part and the positive pins in the outer ring simultaneously. Each positive pin on the circuit board is connected to a resistor. The positioning component includes an elastic pressure plate. The electrode plate is integrally fixed to the side of the mirror base by screws. The handwheel is axially limited by the elastic pressure plate so that the handwheel only has rotational freedom. The elastic pressure plate has symmetrical first positioning protrusions on both sides of the elastic pressure plate. The first positioning protrusions have an arc-shaped raised structure. It also includes a toothed washer, with a second positioning protrusion forming a ring around its upper edge. A retaining groove is formed around the upper edge of one end of the handwheel. The toothed washer is fixed inside the handwheel, and the second positioning protrusion is positioned corresponding to the retaining groove. The elastic pressure plate is attached to the outside of the toothed washer. At the same time, the first positioning protrusion and the second positioning protrusion are positioned and engaged, so that when the handwheel rotates, the first positioning protrusion engages with the second positioning protrusion at different positions to position the handwheel at different gears.

2. The battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness according to claim 1, characterized in that, The inner wall of the handwheel is symmetrically provided with positioning blocks on both sides, and positioning grooves are provided on both sides of the circuit board at the positions corresponding to the positioning blocks. When the circuit board is built into the handwheel, the positioning grooves and positioning blocks are engaged and fixed.

3. The battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness according to claim 2, characterized in that, The circuit assembly includes a positive electrode and a negative electrode. The negative electrode is soldered to the center of the outer side of the circuit board and is electrically connected to the negative electrode pin. The positive electrode is soldered to the outer side of the circuit board and is electrically connected to the positive electrode pin. An insulating pad is also provided between the positive electrode and the negative electrode to prevent short circuits between the positive electrode and the negative electrode.

4. The battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness according to claim 3, characterized in that, It also includes a button cell battery and an EVA gasket, wherein the EVA gasket presses the button cell battery so that the button cell battery simultaneously contacts and conducts electricity with both the positive and negative electrodes.

5. The battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness according to claim 4, characterized in that, It also includes a C-shaped retaining ring, which is used to fix the circuit board inside the handwheel.

6. The battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness according to claim 5, characterized in that, It also includes a friction washer and a sealing ring. The friction washer is placed between the mirror base and the handwheel to reduce friction between the handwheel and the mirror base. The sealing ring is sleeved on one end of the handwheel and is sealed to the mirror base.

7. The battery handwheel mechanism for a variable pattern red dot sight with adjustable brightness according to claim 6, characterized in that, It also includes a battery cover, which is located inside the other end of the handwheel cover and presses down the EVA gasket, and a sealing ring is fitted on the battery cover.

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