A rotating head position recognition device

By introducing a positive power supply component, a resistor, and a microprocessor-based rotating head position recognition device into the electric stapler, the problem of real-time sensing of the rotating head direction is solved, enabling precise control of the rotating head, improving operational convenience and safety, and avoiding the risk of poor anastomosis.

CN224484075UActive Publication Date: 2026-07-14JIANGSU YIRUI MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202521660729.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2026-07-14
Estimated Expiration
2035-08-06

AI Technical Summary

Technical Problem

During the use of an electric stapler, the operator needs to manually adjust the direction of the rotating head, and cannot perceive the angle and direction of the rotating head in real time, which makes the operation complicated and prone to misjudgment of direction, affecting the quality of the stapler.

Method used

By employing a positive power supply component, a first resistor, a second resistor, a semi-energized conductive slip ring, and a microprocessor, the system achieves real-time perception of the current orientation of the rotating head and logical unification of the button tilting direction through the identification of rotation and verification signals. The semi-energized conductive slip ring is used for signal transmission and the microprocessor for judgment, ensuring the accuracy of button control.

Benefits of technology

It achieves real-time sensing of the rotating head direction and logical unification of button control, reducing operational complexity, improving operational convenience and safety, avoiding the risk of repeated operations or poor matching due to misjudgment of direction, and ensuring operational quality and safety.

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Abstract

The utility model discloses a rotating head position recognition device relates to rotating head position recognition technical field, including positive power component, first resistance is connected with one end of positive power component, half electricity conduction slip ring is connected with one end of first resistance for identifying rotation signal and verification signal, and the angle and direction of rotating head are judged, second resistance is connected with the third pin of half electricity conduction slip ring, and is connected with the other end of positive power component, microprocessor is connected with the second pin and third pin of half electricity conduction slip ring respectively. The utility model discloses the cooperation setting of positive power component, first resistance, second resistance, half electricity conduction slip ring and microprocessor, introduces rotation direction feedback and intelligent control mechanism, has realized the real -time perception of the current orientation of rotating head and the logic unity of key nodding direction.
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Description

Technical Field

[0001] This utility model relates to the field of rotating head position recognition technology, and more specifically, to a rotating head position recognition device. Background Technology

[0002] Electric staplers are advanced medical devices widely used in modern surgery, primarily for the rapid and precise anastomosis of hollow organs such as the digestive and respiratory tracts. Electric staplers are driven by a motor to perform stapling and cutting actions. It is worth noting that the rotating head, as the core functional module of the electric stapler, features multi-angle adjustment, and the correct selection of its rotation direction is not only crucial for smooth operation but also paramount in preventing poor anastomosis.

[0003] However, during the use of an electric stapler, it is sometimes necessary to manually adjust the direction of the rotating head to achieve clamping in different directions. During this process, the control panel cannot know the direction of the rotating head. Therefore, when pressing the same head-swinging button, the head may swing to the left or to the right. As a result, the operator needs to be distracted and remember the direction of the rotating head in order to operate in the expected head-swinging direction.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a rotating head position recognition device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] According to one aspect of the present invention, a rotating head position identification device is provided, comprising: a positive power supply assembly; a first resistor connected to one end of the positive power supply assembly; a semi-energized conductive slip ring connected to one end of the first resistor for identifying rotation signals and verification signals, and determining the angle and direction of the rotating head; a second resistor connected to the third pin of the semi-energized conductive slip ring and connected to the other end of the positive power supply assembly; and a microprocessor connected to the second pin and the third pin of the semi-energized conductive slip ring respectively.

[0008] Furthermore, in order to achieve real-time perception of the current orientation of the rotating head, the rotation signal and verification signal can be identified through the cooperation of the slip ring mover assembly and the slip ring stator assembly. The identified signal enables the operator to complete the precise swing in the expected direction regardless of the angle and direction of the rotating head. The semi-energized conductive slip ring includes: a slip ring stator assembly, which is connected to one end of the first resistor and the second resistor; and a slip ring mover assembly, which is connected to the slip ring stator assembly.

[0009] Furthermore, to achieve signal transmission, the slip ring stator assembly can cooperate with the slip ring mover assembly to identify rotation and verification signals under the action of the inner, middle, and outer ring spring pins. The slip ring stator assembly includes a fixed plate connected to the first and second resistors. A first inner ring spring pin is symmetrically connected to one side of the fixed plate. A second inner ring spring pin is symmetrically connected to one side of the fixed plate and at the bottom of the first inner ring spring pin. A first middle ring spring pin is symmetrically connected to one side of the fixed plate and at one end of the first inner ring spring pin. A second middle ring spring pin is symmetrically connected to one side of the fixed plate and at the other end of the first inner ring spring pin. A first outer ring spring pin connected to the first resistor is connected to one side of the fixed plate and at the top of the second middle ring spring pin. A first outer ring spring pin connected to the first resistor is connected to one side of the fixed plate and at the bottom of the first middle ring spring pin. A second outer ring spring pin is connected to a second resistor; a first inner ring spring pin rotates 180 degrees around the center point of the fixed plate and coincides with the second inner ring spring pin; both the first and second inner ring spring pins are connected to the inner ring copper foil; a first middle ring spring pin rotates 180 degrees around the center point of the fixed plate and coincides with the second middle ring spring pin; both the first and second middle ring spring pins are connected to the middle ring copper foil; a first outer ring spring pin rotates 180 degrees around the center point of the fixed plate and coincides with the second outer ring spring pin; the first outer ring spring pin is connected to the outer ring copper foil; the distance from the position of the first inner ring spring pin to the center point of the fixed plate is less than the distance from the position of the first middle ring spring pin to the center point of the fixed plate; the distance from the position of the first middle ring spring pin to the center point of the fixed plate is less than the distance from the position of the first outer ring spring pin to the center point of the fixed plate.

[0010] Furthermore, in order to achieve the identification of the rotation direction and to realize the real-time perception of the current orientation of the rotating head under the action of the outer ring copper skin, the slip ring mover assembly includes an inner ring copper skin connected to the slip ring stator assembly. A rotor is connected to one side of the inner ring copper skin, and a middle ring copper skin is connected to one side of the rotor and outside the inner ring copper skin. An outer ring copper skin is connected to the top outer side of the middle ring copper skin. The inner ring copper skin and the middle ring copper skin are circular ring structures, and the connection between the outer side of the middle ring copper skin and the inner side of the outer ring copper skin is an electrical short circuit connection. The outer ring copper skin is a semi-circular arc structure with the opening facing downward.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention, through the coordinated arrangement of a positive power supply component, a first resistor, a second resistor, a semi-energized conductive slip ring, and a microprocessor, introduces a rotation direction feedback and intelligent control mechanism. This achieves real-time sensing of the rotating head's current orientation and logical unification of the head-swing direction via button press. Regardless of the rotating head's angle or orientation, the operator only needs to press the designated "swing" button to achieve precise swaying in the expected direction. There is no need to memorize the rotating head's current angle and orientation, nor are there any additional switches, dedicated circuits, or sensors. The semi-energized conductive slip ring achieves the desired effect and outputs a verification signal to prevent misidentification, making it more convenient and safer. This significantly reduces operational complexity, improves convenience and safety during operation, effectively avoids the risk of repetitive operations or poor alignment due to misjudgment of direction, and further ensures operational quality and safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a rotating head position recognition device according to an embodiment of the present utility model;

[0015] Figure 2 This is a side view of a rotating head position identification device according to an embodiment of the present invention, showing a semi-energized conductive slip ring during identification.

[0016] Figure 3 This is a schematic diagram of the slip ring moving part assembly during identification in a rotating head position identification device according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the slip ring stator assembly during identification in a rotating head position identification device according to an embodiment of the present utility model;

[0018] Figure 5 This is a flowchart of a rotating head position recognition method according to an embodiment of the present utility model.

[0019] In the picture:

[0020] 1. Positive power supply assembly; 2. First resistor; 3. Semi-energized conductive slip ring; 301. Slip ring stator assembly; 3011. First inner ring spring pin; 3012. Second inner ring spring pin; 3013. First middle ring spring pin; 3014. Second middle ring spring pin; 3015. First outer ring spring pin; 3016. Second outer ring spring pin; 3017. Fixing plate; 302. Slip ring mover assembly; 3021. Inner ring copper foil; 3022. Middle ring copper foil; 3023. Outer ring copper foil; 3024. Rotor; 4. Second resistor; 5. Microprocessor. Detailed Implementation

[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0022] According to an embodiment of the present invention, a rotating head position identification device is provided.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-4 As shown, according to one embodiment of the present invention, a rotating head position identification device is provided, comprising: a positive power supply component 1; a first resistor 2 connected to one end of the positive power supply component 1; a semi-energized conductive slip ring 3 connected to one end of the first resistor 2 for identifying rotation signals and verification signals, and determining the angle and direction of the rotating head; a second resistor 4 connected to the third pin of the semi-energized conductive slip ring 3 and connected to the other end of the positive power supply component 1; and a microprocessor 5 connected to the second pin and the third pin of the semi-energized conductive slip ring 3 respectively.

[0024] In one embodiment, the semi-energized conductive slip ring 3 includes: a slip ring stator assembly 301 connected to one end of the first resistor 2 and the second resistor 4; and a slip ring mover assembly 302 connected to the slip ring stator assembly 301. Under the cooperative action of the slip ring mover assembly 302 and the slip ring stator assembly 301, it can identify rotation signals and verification signals. The identified signals enable the operator to perform precise oscillation in the expected direction regardless of the angle and direction of the rotating head.

[0025] In one embodiment, the slip ring stator assembly 301 includes a fixing plate 3017 connected to the first resistor 2 and the second resistor 4. A first inner ring spring pin 3011 is symmetrically connected to one side of the fixing plate 3017. A second inner ring spring pin 3012 is symmetrically connected to one side of the fixing plate 3017 and located at the bottom of the first inner ring spring pin 3011. A first middle ring spring pin 3013 is symmetrically connected to one side of the fixing plate 3017 and located at one end of the first inner ring spring pin 3011. A second middle ring spring pin 3014 is symmetrically connected to one side of the first inner ring spring pin 3011 and to the other end; a first outer ring spring pin 3015, connected to the first resistor 2, is connected to one side of the fixing plate 3017 and to the top of the second middle ring spring pin 3014; a second outer ring spring pin 3016, connected to the second resistor 4, is connected to one side of the fixing plate 3017 and to the bottom of the first middle ring spring pin 3013; the first inner ring spring pin 3011 is rotated 180 degrees around the center point of the fixing plate 3017 to coincide with the second inner ring spring pin 3012. Both the first inner ring spring pin 3011 and the second inner ring spring pin 3012 are connected to the inner ring copper sheet 3021; ​​the first middle ring spring pin 3013 rotates 180 degrees around the center point of the fixing plate 3017 and coincides with the second middle ring spring pin 3014; both the first middle ring spring pin 3013 and the second middle ring spring pin 3014 are connected to the middle ring copper sheet 3022; the first outer ring spring pin 3015 rotates 180 degrees around the center point of the fixing plate 3017 and coincides with the second outer ring spring pin 3016; the first outer ring spring pin 3015 is connected to the outer ring copper sheet 3023. The distance from the position of the first inner ring spring pin 3011 to the center point of the fixed plate 3017 is less than the distance from the position of the first middle ring spring pin 3013 to the center point of the fixed plate 3017; the distance from the position of the first middle ring spring pin 3013 to the center point of the fixed plate 3017 is less than the distance from the position of the first outer ring spring pin 3015 to the center point of the fixed plate 3017; under the action of the inner ring, middle ring and outer ring spring pins, the slip ring stator assembly 301 can cooperate with the slip ring mover assembly 302 to identify rotation signals and verification signals.

[0026] In one embodiment, the slip ring mover assembly 302 includes an inner ring copper skin 3021 connected to the slip ring stator assembly 301. A rotor 3024 is connected to one side of the inner ring copper skin 3021, a middle ring copper skin 3022 is connected to one side of the rotor 3024 and located outside the inner ring copper skin 3021, and an outer ring copper skin 3023 is connected to the top outer side of the middle ring copper skin 3022. The inner ring copper skin 3021 and the middle ring copper skin 3022 are circular ring structures, and the connection between the outer side of the middle ring copper skin 3022 and the inner side of the outer ring copper skin 3023 is an electrical short circuit connection. The outer ring copper skin 3023 is a semi-circular arc structure with an opening facing downwards. Under the action of the outer ring copper skin 3023, the current orientation of the rotating head can be perceived in real time.

[0027] like Figure 5 As shown, according to another embodiment of the present invention, a method for identifying the position of a rotating head is provided, the method comprising the following steps:

[0028] S1. Obtain the rotation signal and verification signal output by the semi-energized conductive slip ring 3, and judge the rotation signal and verification signal by the microprocessor 5;

[0029] S2. Determine the current angle and direction of the rotating head based on the judgment result, and adjust the swing direction controlled by the button using the current angle and direction of the rotating head, and control the motor drive based on the adjusted swing direction.

[0030] Specifically, the electric stapler automatically identifies the direction of the rotating head through a semi-energized conductive slip ring 3; the semi-energized conductive slip ring 3 is used for signal transmission, and the signal is detected by a microprocessor 5. When the rotating head rotates 180 degrees, it generates a change in output level. The microprocessor 5 identifies this change in level to determine the current angle and direction of the rotating head, thereby adjusting the tilting direction controlled by the button. This ensures that regardless of the direction the rotating head rotates, the tilting direction controlled by the same button always appears visually consistent.

[0031] It should be noted that the semi-energized conductive slip ring 3 is divided into a slip ring mover assembly 302 and a slip ring stator assembly 301. The slip ring mover assembly 302 includes an inner ring copper sheet 3021, a middle ring copper sheet 3022, and an outer ring copper sheet 3023. The inner ring copper sheet 3021 is a complete copper sheet, the middle ring copper sheet 3022 is a complete ring of copper sheet, and the outer ring copper sheet 3023 is a portion extending outward from the outer side of the middle ring copper sheet 3022. The middle ring copper sheet 3022 and the outer ring copper sheet 3023 are electrically short-circuited. The slip ring stator assembly 301 includes two first inner ring spring pins 3011, two second inner ring spring pins 3012, two first middle ring spring pins 3013, two second middle ring spring pins 3014, one first outer ring spring pin 3015, and one second outer ring spring pin 3016. Among the above three ring spring pins, the inner ring spring pin and the middle ring spring pin each have four spring contacts. The outer ring spring pin has two spring contacts.

[0032] It should be noted that in practical applications, the inner ring copper foil 3021 of the slip ring mover assembly 302 is connected to the component chip communication signal, the middle ring copper foil 3022 is connected to the component chip GND signal, and the outer ring copper foil 3023, due to an electrical short circuit with the middle ring copper foil 3022, is also a GND signal. The first inner ring spring pin 3011 and the second inner ring spring pin 3012 of the slip ring stator assembly 301 are connected to the microcontroller communication pin, the first middle ring spring pin 3013 and the second middle ring spring pin 3014 are connected to the power supply GND, and the spring contacts of the first outer ring spring pin 3015 and the second outer ring spring pin 3016 are connected to the microcontroller I / O port and connected to the positive power supply assembly 1 through a first resistor 2 and a second resistor 4 respectively. That is, the positive power supply assembly 1 includes two VCCs. In this configuration, the other end of the first resistor 2 is connected to one end of one of the VCCs; one end of the second resistor 4 is connected to one end of the other VCC; one end of the first resistor 2 is connected to the second pin of the semi-energized conductive slip ring 3, i.e., one end of the first resistor 2 is connected to the first outer ring spring pin 3015; the other end of the second resistor 4 is connected to the third pin of the semi-energized conductive slip ring 3, i.e., the other end of the second resistor 4 is connected to the second outer ring spring pin 3016; the first pin of the semi-energized conductive slip ring 3 is connected to GND, i.e., the first middle ring spring pin 3013 and the second middle ring spring pin 3014 are connected to GND; one end of the first resistor 2 is connected to one end of the microprocessor 5 and the second pin of the semi-energized conductive slip ring 3; and the other end of the second resistor 4 is connected to the other end of the microprocessor 5 and the third pin of the semi-energized conductive slip ring 3.

[0033] It should be noted that in practical applications, the first middle ring spring pin 3013 and the second middle ring spring pin 3014 of the slip ring stator assembly 301 transmit the GND signal to the middle ring copper foil 3022 and the outer ring copper foil 3023 of the slip ring mover assembly 302. When the spring contacts of the first outer ring spring pin 3015 and the second outer ring spring pin 3016 contact the outer ring copper foil 3023, two situations occur. First, contact with the outer ring copper foil 3023 results in the output of a GND signal. Second, contact with an area without copper foil results in the output of a VCC signal due to the presence of the first pull-up resistor 2 and the second resistor 4. The spring contact of the first outer ring spring pin 3015 is used to identify the direction, and the spring contact of the second outer ring spring pin 3016 is used to verify whether the level of the spring contact of the first outer ring spring pin 3015 is correct. When the spring contact of the first outer ring spring pin 3015 contacts the outer ring copper foil 3023 and outputs a GND signal, the spring contact of the second outer ring spring pin 3016 must contact the area without copper foil and output a VCC signal. Conversely, if the spring contact of the first outer ring spring pin 3015 contacts the area without copper foil and outputs a VCC signal, the spring contact of the second outer ring spring pin 3016 must contact the outer ring copper foil 3023 and output a GND signal. This prevents the spring contact signal of the first outer ring spring pin 3015 from failing, which could lead to incorrect identification.

[0034] It should be noted that, as Figure 5 As shown, the microprocessor 5 judges the rotation signal and the verification signal. When the rotation signal is one and the verification signal is zero, the motor is controlled to rotate forward; when the rotation signal is zero and the verification signal is one, the motor is controlled to rotate in reverse.

[0035] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0036] In practical applications, when the left swing button is pressed, the spring contact of the first outer ring spring pin 3015 of the slip ring stator assembly 301 contacts the outer ring copper foil 3023 of the slip ring mover assembly 302. The spring contact output signal is a GND signal, which the microprocessor 5 recognizes and controls the motor to rotate in the normal direction, resulting in a visual leftward swing. When the spring contact of the first outer ring spring pin 3015 of the slip ring stator assembly 301 contacts the copper foil-free portion of the outer ring copper foil 3023 of the slip ring mover assembly 302, the microprocessor 5 recognizes a high-level signal and controls the motor to rotate in the opposite direction, still resulting in a visual leftward swing. When the right swing button is pressed, the principle is the same as pressing the left swing button, but the motor rotates in the opposite direction. At the same time, the spring contact of the second outer ring spring pin 3016 of the slip ring stator assembly 301 outputs a reverse signal to prevent the spring contact of the first outer ring spring pin 3015 of the slip ring stator assembly 301 from failing and causing identification errors.

[0037] In summary, by utilizing the above-mentioned technical solution of this utility model, through the coordinated arrangement of the positive power supply component 1, the first resistor 2, the second resistor 4, the semi-energized conductive slip ring 3, and the microprocessor 5, a rotation direction feedback and intelligent control mechanism is introduced. This achieves real-time perception of the current orientation of the rotating head and logical unification of the button-operated head swing direction. Regardless of the angle and orientation of the rotating head, the operator only needs to press the designated "swing" button to complete the precise swing in the expected direction. There is no need to memorize the current angle and orientation of the rotating head, nor are there any additional switches, dedicated circuits, or sensors. The desired effect can be achieved through the semi-energized conductive slip ring 3, which can also output a verification signal to prevent identification errors, making it more convenient and safer. This greatly reduces the complexity of operation, improves the convenience and safety of the operation process, effectively avoids the risk of repeated operations or poor matching due to misjudgment of direction, and further ensures the quality and safety of operation.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotating head position recognition device, characterized in that, include: Positive power supply component (1); The first resistor (2) is connected to one end of the positive power supply component (1); A semi-energized conductive slip ring (3) is connected to one end of the first resistor (2) to identify rotation signals and verification signals, and to determine the angle and direction of the rotating head; The second resistor (4) is connected to the third pin of the semi-energized conductive slip ring (3) and to the other end of the positive power supply assembly (1); The microprocessor (5) is connected to the second and third pins of the semi-energized conductive slip ring (3), respectively.

2. The rotating head position identification device according to claim 1, characterized in that, The semi-energized conductive slip ring (3) includes: The slip ring stator assembly (301) is connected to one end of the first resistor (2) and the second resistor (4); The slip ring mover assembly (302) is connected to the slip ring stator assembly (301).

3. The rotating head position identification device according to claim 2, characterized in that, The slip ring stator assembly (301) includes a fixing plate (3017) connected to the first resistor (2) and the second resistor (4). A first inner ring spring pin (3011) is symmetrically connected to one side of the fixing plate (3017). A second inner ring spring pin (3012) is symmetrically connected to one side of the fixing plate (3017) and at the bottom of the first inner ring spring pin (3011). A first middle ring spring pin (3013) is symmetrically connected to one side of the fixing plate (3017) and at one end of the first inner ring spring pin (3011). A second middle ring spring pin (3014) is symmetrically connected to one side of the fixing plate (3017) and at the other end of the first inner ring spring pin (3011). A first outer ring spring pin (3015) connected to the first resistor (2) is connected to one side of the fixing plate (3017) and at the top of the second middle ring spring pin (3014). A second outer ring spring pin (3016) connected to the second resistor (4) is located on one side of the fixing plate (3017) and at the bottom of the first middle ring spring pin (3013).

4. The rotating head position identification device according to claim 3, characterized in that, The slip ring mover assembly (302) includes an inner ring copper sheet (3021) connected to the slip ring stator assembly (301), a rotor (3024) connected to one side of the inner ring copper sheet (3021), a middle ring copper sheet (3022) connected to one side of the rotor (3024) and outside the inner ring copper sheet (3021), and an outer ring copper sheet (3023) connected to the top outer side of the middle ring copper sheet (3022).

5. The rotating head position identification device according to claim 4, characterized in that, The inner ring copper skin (3021) and the middle ring copper skin (3022) are circular ring structures, and the connection between the outer side of the middle ring copper skin (3022) and the inner side of the outer ring copper skin (3023) is an electrical short circuit connection.

6. The rotating head position identification device according to claim 4, characterized in that, The outer copper ring (3023) is a semi-circular arc structure with the opening facing downwards.

7. The rotating head position identification device according to claim 4, characterized in that, The first inner ring spring pin (3011) rotates 180 degrees around the center point of the fixed plate (3017) to coincide with the second inner ring spring pin (3012); Both the first inner ring spring pin (3011) and the second inner ring spring pin (3012) are connected to the inner ring copper sheet (3021).

8. The rotating head position identification device according to claim 4, characterized in that, The first middle ring spring pin (3013) rotates 180 degrees around the center point of the fixed plate (3017) to coincide with the second middle ring spring pin (3014); Both the first middle ring spring pin (3013) and the second middle ring spring pin (3014) are connected to the middle ring copper sheet (3022).

9. The rotating head position identification device according to claim 4, characterized in that, The first outer ring spring pin (3015) rotates 180 degrees around the center point of the fixed plate (3017) to coincide with the second outer ring spring pin (3016); The first outer ring spring pin (3015) is connected to the outer ring copper sheet (3023); The distance from the location of the first inner ring spring pin (3011) to the center point of the fixing plate (3017) is less than the distance from the location of the first middle ring spring pin (3013) to the center point of the fixing plate (3017); The distance from the location of the first middle ring spring pin (3013) to the center point of the fixing plate (3017) is less than the distance from the location of the first outer ring spring pin (3015) to the center point of the fixing plate (3017).