Pull rod head structure, operating rod and using method

Abstract

The invention discloses a pull rod head structure, an operation rod and a using method. The pull rod head structure comprises a housing, an alignment guide assembly and a floating connecting mechanism. A guide inlet is formed in the housing; the alignment guide assembly is arranged in the guide inlet in a centering manner; the floating connecting mechanism is arranged between the housing and the alignment guide assembly, and the floating connecting mechanism is used for enabling the alignment guide assembly to be arranged on the housing in a floatable mode. In the application, the alignment guide assembly is located at the position centered with the guide inlet through the floating connection mechanism and is arranged in a floating manner, the disconnecting link pull ring can be guided by the alignment guide assembly to reach a proper operable position during operation, and in the guiding process, the floating connection mechanism can play roles in absorbing impact and allowing tiny offset; therefore, operation jitter is compensated, rapid and accurate alignment penetration is realized, the operation efficiency is improved, and the operation difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of power operation and maintenance tools, and in particular to a lever head structure, operating rod, and method of use. Background Technology

[0002] In the daily operation, maintenance, and emergency operations of power distribution networks, the opening and closing of disconnect switches mounted on 10kV poles or frames are performed. Currently, operators generally use insulated operating rods, relying on the simple hook-shaped or pull-ring-shaped rod head at the end to hook the pull ring of the disconnect switch. However, when the insulated operating rod, which is several meters long, is raised, its end will inevitably shake and sway due to the leverage effect. This instability, combined with the small inner hole of the pull ring, makes it extremely difficult to accurately insert the rod head into the pull ring in one go, often requiring multiple attempts, which is both physically demanding and prolongs the operation time. Summary of the Invention

[0003] This application proposes a lever head structure to effectively solve the technical problems of difficult, time-consuming and labor-intensive operation of knife switch rings in related technologies.

[0004] This application also proposes an operating rod that includes the above-described lever head structure.

[0005] This application also proposes a method of using an operating rod including the above-mentioned operating rod.

[0006] The first aspect of this application provides a pull rod head structure, including: a housing, an alignment guide assembly, and a floating connection mechanism;

[0007] The casing has a guide inlet;

[0008] The alignment guide component is centered within the guide inlet;

[0009] The floating connection mechanism is disposed between the housing and the alignment guide assembly, and the floating connection mechanism is used to allow the alignment guide assembly to be floatably disposed on the housing.

[0010] Furthermore, the floating connection mechanism includes a floating seat and a plurality of flexible arms. The floating seat is disposed on the alignment guide assembly, and the flexible arms are distributed circumferentially at intervals along the guide inlet. One end of each flexible arm is connected to the cover, and the other end of the flexible arm is connected to the floating seat.

[0011] Furthermore, the floating connection mechanism includes a spherical support, a ball-head rod, and a spring-loaded component. The spherical support is disposed on the housing. One end of the ball-head rod is connected to the alignment guide assembly, and the other end of the ball-head rod is rotatably disposed on the spherical support. The spring-loaded component acts on the ball-head rod to give the ball-head rod a degree of freedom to move radially along the guide inlet.

[0012] Furthermore, the alignment guide component includes a front port, a rear port, and a guide wall. The front port is connected to the guide inlet, the rear port is configured as a working hanging hole that can act on the pull ring, and the guide wall is connected to the front port and the rear port respectively. The guide wall is configured as a conical surface that gradually narrows along the direction from the front port to the rear port.

[0013] Furthermore, the outer side of the working hanging hole is provided with a limiting flange for preventing detachment.

[0014] Furthermore, the guide inlet is configured as a flared opening that gradually narrows along the direction from the front port to the rear port.

[0015] Furthermore, the lever head structure also includes a lighting assembly disposed on the housing and used to provide a light source.

[0016] Furthermore, the lighting component includes a light source module, an ambient sensing module, and a power supply module. The power supply module is used to supply power to the light source module and the ambient sensing module. The ambient sensing module is used to detect ambient illuminance. The light source module is configured to turn on, turn off, or adjust the light source when the ambient illuminance detected by the ambient sensing module reaches a preset threshold.

[0017] A second aspect of this application provides an operating rod, including a lever head structure as described in the first aspect of this application.

[0018] A third aspect of this application provides a method for using an operating stick, including the following steps:

[0019] Raise the operating lever so that the lever head is facing the switch ring;

[0020] Move the control lever so that the switch ring contacts the guide inlet;

[0021] The operating rod moves forward relative to the knife switch ring so that the knife switch ring enters the guide inlet and contacts the alignment guide component. As the operating rod advances, the knife switch ring is constrained to a preset position by the alignment guide component under the floating and centering action of the alignment guide component.

[0022] The switch is operated by using a control stick to pull or close the circuit.

[0023] As can be seen from the above technical solutions, the embodiments of this application have at least the following beneficial effects: the alignment guide component is positioned and floated in the center of the guide inlet by the floating connection mechanism. During operation, the knife gate pull ring will be guided by the alignment guide component to reach a suitable operable position. During the guidance process, the floating connection mechanism can absorb the impact and allow slight deviation, thereby compensating for operation vibration, realizing fast and accurate alignment and insertion, improving work efficiency and reducing operation difficulty.

[0024] It is easy to understand that the operating rod in the second aspect embodiment and the operating rod in the third aspect embodiment of this application both have the same technical effects as the lever head structure in the first aspect embodiment, and therefore will not be described again.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a pull rod head structure provided in one embodiment of this application.

[0028] Figure label:

[0029] 100. Housing; 110. Lighting component mounting position;

[0030] 200, Alignment guide assembly; 210, Front port; 220, Rear port; 230, Guide wall; 240, Limiting flange;

[0031] 300. Floating connection mechanism. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] See Figure 1As shown, an embodiment of the first aspect of this application discloses a pull rod head structure, including a housing 100, an alignment guide assembly 200, and a floating connection mechanism 300;

[0034] The housing 100 has a guide inlet; the alignment guide component 200 is centered in the guide inlet; the floating connection mechanism 300 is disposed between the housing 100 and the alignment guide component 200, and the floating connection mechanism 300 is used to make the alignment guide component 200 float on the housing 100.

[0035] In the embodiments of this application, the alignment guide component 200 is positioned and floated in alignment with the guide inlet by the floating connection mechanism 300. During operation, the knife gate pull ring will be guided by the alignment guide component 200 to reach a suitable operable position. During the guiding process, the floating connection mechanism 300 can absorb impact and allow slight displacement, thereby compensating for operation vibration, achieving fast and accurate alignment and insertion, improving work efficiency and reducing operation difficulty.

[0036] Understandably, the guide inlet of the housing 100 provides an initial access channel for the knife switch ring. The alignment guide component 200 is centered within the guide inlet to provide a reference and guide the knife switch ring to a preset position that is easy to operate. The floating connection mechanism 300 connects the housing 100 and the alignment guide component 200 to form a floating space between the housing 100 and the alignment guide component 200. This floating space allows the alignment guide component 200 to float slightly relative to the housing 100. The floating connection mechanism 300 maintains the alignment of the alignment guide component 200 and the guide inlet, and can also absorb the impact load during operation, compensate for the slight offset caused by manual operation vibration, and ensure that the knife switch ring smoothly enters along the guide trajectory of the alignment guide component 200, thus solving the problem of difficult alignment caused by unstable operation.

[0037] In some embodiments, the alignment guide component 200 is centered at the guide inlet to provide a guide path for the switch ring. The floating connection mechanism 300 causes the alignment guide component 200 to float. When the alignment guide component 200 is subjected to external force generated by contact with the switch ring, it can adapt to the deviation by floating, so that the switch ring can quickly reach the operable position without repeated calibration, thus shortening the alignment insertion time.

[0038] Furthermore, the floating connection mechanism 300 allows the alignment guide component 200 to have multi-directional freedom of movement within the guide inlet. Specifically, the alignment guide component 200 can move radially along the guide inlet and return to its centered position after floating. In addition to radial movement, the connection between the floating connection mechanism 300 and the alignment guide component 200 can be used as a reference for movement and / or rotation, specifically involving axial, circumferential, and multi-directional composite positional offsets. This compensates for vibrations, impacts, and minor positional offsets during manual operation, reducing the skill requirements for operators.

[0039] The following will combine Figure 1 The tie rod head structure disclosed in the embodiments of this application will be explained and described in detail.

[0040] It should be understood that in order to compensate for operational jitter and achieve better results in fast and accurate alignment and insertion, the structural design of the floating connection mechanism 300 is the key to realizing the above functions.

[0041] In some embodiments, the floating connection mechanism 300 includes a floating seat and multiple flexible arms. The floating seat is mounted on the alignment guide assembly 200, and the flexible arms are spaced apart circumferentially along the guide inlet. One end of each flexible arm is connected to the housing 100, and the other end is connected to the floating seat. It is understood that the flexible arms possess both elastic support and micro-deformation capability. They maintain the alignment of the alignment guide assembly 200 and the guide inlet through circumferential symmetrical distribution, and can also undergo elastic deformation when subjected to operational impacts or deviations. This causes the floating seat and alignment guide assembly 200 to float slightly relative to the housing 100, compensating for minor positional shifts caused by manual operation. This allows the knife switch ring to slide smoothly along the guide trajectory of the alignment guide assembly 200 and reach an operable position, improving operational efficiency.

[0042] In some embodiments, the flexible arm has flexible deformation capability, specifically it can be configured as an elastic component or a rigid spring, so that in addition to being able to stretch and deform along the stretching direction, it can also sway according to its own material properties, so that when the feedback is sent to the floating seat and the alignment guide assembly 200, it can cause a slight floating positional shift.

[0043] In some embodiments, the floating connection mechanism 300 includes a spherical support, a ball-head rod, and a spring-loaded component. The spherical support is mounted on the housing 100. One end of the ball-head rod is connected to the alignment guide assembly 200, and the other end of the ball-head rod is rotatably mounted on the spherical support. The spring-loaded component acts on the ball-head rod to give it a degree of freedom of radial movement along the guide inlet. It is understood that the spherical support and the ball-head rod form a spherical fit, allowing the ball-head rod to rotate in multiple directions around the spherical support, providing angular deviation compensation space for the alignment guide assembly 200. The spring-loaded component, like a spring, acts on the ball-head rod, allowing it to make slight movements radially along the guide inlet, and also pulling the ball-head rod back to its original position without external force, maintaining the alignment of the alignment guide assembly 200 with the guide inlet. The overall system combines spherical rotation to compensate for angular deviation, radial floating to absorb positional offset, and spring-loaded return to ensure alignment, further improving operational efficiency.

[0044] In some embodiments, the spherical rotation of the ball head rod can adapt to the angular deviation during operation. The elastic component continuously acts on the ball head rod to ensure that the alignment guide component 200 is always aligned with the guide inlet when there is no external interference. This allows the knife switch ring to quickly reach the operable position along the guide trajectory without repeatedly adjusting the angle and position, reducing jamming and invalid operations, and further improving work efficiency.

[0045] In some embodiments, the floating connection mechanism 300 includes a flexible pad, the two ends of which are slidably connected to the cover 100 and the alignment guide component 200, respectively. The flexible pad can extend and retract radially, which also enables the alignment guide component 200 to be floated and achieves a similar technical effect to the floating connection mechanism 300 in the above embodiments.

[0046] In some embodiments, the floating connection mechanism 300 may also be configured as a damped connection structure, so that the alignment guide component 200 is floated and has a reset alignment function.

[0047] In some embodiments of this application, the alignment guide component 200 includes a front port 210, a rear port 220, and a guide wall 230. The front port 210 connects to the guide inlet, and the rear port 220 is configured as a working hanging hole capable of acting on the pull ring. The guide wall 230 connects to both the front port 210 and the rear port 220, and is configured as a conical surface that gradually narrows from the front port 210 to the rear port 220. It can be understood that the front port 210 of the alignment guide component 200 connects to the guide inlet of the housing 100, forming a wide initial access channel. The guide wall 230 adopts a conical surface structure that is wider at the front and narrower at the rear. Utilizing the gradual contraction characteristics of the conical surface, it guides the entering knife switch pull ring, gradually correcting minor deviations of the pull ring, and ultimately guiding the pull ring to accurately reach the working hanging hole of the rear port 220. Combined with the deviation compensation of the floating connection mechanism 300, precise alignment with the hanging hole is achieved, improving operational efficiency.

[0048] In some embodiments, the guide wall 230 is a tapered guide portion with a cone angle of 60°-120°, and its maximum outer diameter is 1-5 mm smaller than the inner diameter of a standard 10kV disconnector ring.

[0049] For example, in some embodiments, a limiting flange 240 for preventing detachment is provided on the outer side of the working hook hole. It is understood that the outer limiting flange 240 forms a physical barrier, restricting the pull ring from disengaging radially after it is engaged, thus preventing the pull ring from accidentally disengaging during operation.

[0050] In some embodiments, the working hanging hole has a U-shaped notch. The U-shaped notch of the working hanging hole opens along the access direction, adapting to the shape of the knife switch ring. This allows the ring, guided by the conical surface, to quickly snap into the hanging hole. The opening size of the U-shaped notch is adapted to the ring. Thus, while utilizing the U-shaped notch for convenient access, the limiting flange 240 prevents detachment, ensuring both quick access and preventing the ring from accidentally detaching during operation, thereby improving work efficiency.

[0051] It should be noted that, in order to achieve the matching effect between the alignment guide component 200 and the cover 100, in some embodiments, the guide inlet is set as a flared opening that gradually narrows along the direction from the front port 210 to the rear port 220.

[0052] Understandably, the guide inlet adopts a flared structure that is wider at the front and narrower at the back, which cooperates with the conical guide wall 230 of the alignment guide component 200. It gradually narrows along the access direction, initially guiding the pull ring to the front port 210 of the alignment guide component 200, and then further precisely positioning it to the working hanging hole through the conical guide wall 230, so as to achieve a smooth transition and rapid alignment of the knife switch pull ring.

[0053] In some embodiments, the outline shape of the guide inlet is parabolic or elliptical, and the ratio of the maximum opening diameter D of the guide inlet to the outer diameter d of the standard 10kV disconnector ring is in the range of 1.5≤D / d≤3.0.

[0054] It is understandable that changes in ambient light intensity during switching operations can affect the alignment accuracy. Therefore, in some embodiments of this application, the lever head structure also includes a lighting component (not shown in the figures), which is mounted on the housing 100 and provides a light source. It is understood that the lighting component, mounted on the housing 100, provides sufficient illumination in dimly lit environments, allowing operators to clearly observe the switch ring and ensuring fast and accurate operation even in low-light conditions.

[0055] In some embodiments, the light emission direction of the lighting component is configured to illuminate the front external area of ​​the guide entrance.

[0056] In some embodiments, the lever head structure is provided with a lighting component mounting position 110, and the lighting component is detachably mounted on the lighting component mounting position 110.

[0057] For example, in some embodiments, the lighting component includes a light source module, an ambient sensing module, and a power supply module. The power supply module supplies power to the light source module and the ambient sensing module. The ambient sensing module detects ambient illuminance. The light source module is configured to turn on, turn off, or adjust the light source when the ambient illuminance detected by the ambient sensing module reaches a preset threshold. It is understood that the power supply module provides continuous power to the light source module and the ambient sensing module. The ambient sensing module detects the ambient illuminance in real time, compares it with a preset threshold, and outputs a control signal. The light source module automatically turns on when there is insufficient light, turns off when there is sufficient light, or adjusts its brightness according to different illuminance levels based on the signal. By intelligently adapting to the lighting, the complexity of operation is reduced.

[0058] In some embodiments, the housing 100 is made of a light-transmitting material, and at least one observation window is provided on the sidewall and / or top of the housing 100, with an anti-glare coating on the surface of the observation window.

[0059] In some embodiments, the light source module is configured as an LED light source module, including at least one main lighting LED; the power supply module is used to supply power to the LED light source module; the ambient sensing module has a photosensor for automatically turning on or off or adjusting the brightness of the LED light source module according to the ambient light level. It also includes at least one auxiliary indicator LED with a different color temperature than the main lighting LED and an asymmetric light distribution lens for projecting light primarily onto a preset focusing area in front of the guide entrance.

[0060] The second aspect of this application discloses an operating rod, including: the lever head structure of the first aspect of this application.

[0061] The method of using the operating stick according to the third aspect embodiment of this application can be the method of using the operating stick according to the second aspect embodiment of this application. The method of using the operating stick includes the following steps:

[0062] Raise the operating lever so that the lever head is facing the switch ring;

[0063] Move the control lever so that the switch ring contacts the guide inlet;

[0064] The operating rod moves forward relative to the knife switch ring so that the knife switch ring enters the guide inlet and contacts the alignment guide component 200. As the operating rod advances, the knife switch ring is limited to a preset position by the alignment guide component 200 under the floating and centering action of the alignment guide component 200.

[0065] The switch is operated by using a control stick to pull or close the circuit.

[0066] It is easy to understand that the operating rod in the second aspect embodiment and the operating rod in the third aspect embodiment of this application both have the same technical effects as the lever head structure in the first aspect embodiment, and therefore will not be described again.

[0067] The following describes in detail the lever head structure, operating rod, and usage method of this application embodiment using a specific example. It should be noted that the following embodiment is merely illustrative and should not be construed as limiting the scope of this application.

[0068] See Figure 1 As shown in the figure, the lever head structure, operating rod and usage method of this embodiment are described. The lever head structure includes a connecting seat, a cover 100, an alignment guide assembly 200, a floating connection mechanism 300 and a lighting assembly.

[0069] In some embodiments, the connector is made of high-strength engineering plastic or aluminum alloy, and its tail is a standardized threaded interface for quick and reliable connection with the insulated operating rod. It can also be designed as a quick-connect snap-fit ​​structure as needed.

[0070] In some embodiments, the guide housing 100 is cylindrical and fixed to the front end of the connector by screws or clips. The front opening of the housing 100 is machined into a flared guide inlet. In this embodiment, the outer diameter d of a typical 10kV disconnector ring is approximately 30mm, and the profile of the guide inlet is preferably parabolic, with a maximum opening diameter of 60mm. Since D / d = 2.0, this falls within the preferred range of 1.5 to 3.0. This size provides a sufficiently large capture area while ensuring structural compactness. Furthermore, the housing 100 is provided with an observation window made of transparent polycarbonate, with an anti-glare coating on its outer surface, facilitating the operator's observation of the internal alignment from below while reducing interference from sunlight reflection.

[0071] In some embodiments, the alignment guide assembly 200 is housed within the internal cavity of the housing 100. The alignment guide assembly 200 has a guide wall 230 serving as a tapered guide portion. The front port 210 of the alignment guide assembly 200 is the end of the tapered guide portion, made of wear-resistant nylon material, with a cone angle of 90 degrees and a maximum outer diameter of 24 mm. The rear port 220 of the alignment guide assembly 200 has a working hook hole, which is a U-shaped notch to facilitate the insertion and removal of the pull ring. An inwardly protruding limiting flange 240 is provided above the opening side of the U-shaped notch to prevent the pull ring from accidentally slipping upwards during operation. The floating connection mechanism 300 is evenly distributed circumferentially, with one end fixed to the inner wall of the housing 100 and the other end connected to the alignment guide assembly 200. This structure allows the alignment guide assembly 200 to have elastic floating space in the radial direction and multi-directional displacement deviation, while also exhibiting a tendency to automatically maintain its central position.

[0072] In some embodiments, the lighting components are integrated into the upper part of the housing 100, including an LED light source module (containing 3 cool white LEDs), a rechargeable lithium-ion battery as a power supply module, and an environmental sensing and control module integrating a photosensor. All electronic components are sealed by potting process to meet dustproof and waterproof requirements. The lighting light is emitted through the observation window, and the illumination direction is towards the front of the guide entrance. The photosensor can sense the ambient light brightness. When the brightness is lower than a set threshold, the LED lighting is automatically turned on, and when it is higher than the threshold, it is automatically turned off to achieve intelligent energy saving.

[0073] In one specific embodiment, before operation, the lever head structure is screwed onto the insulated operating rod. The operator raises the operating rod so that the lever head structure is roughly facing the switch ring. The lighting component automatically illuminates in dim environments, illuminating the ring area. Since the diameter of the guide inlet is much larger than the ring, the operator does not need extremely precise alignment; simply slipping the ring into the guide inlet's field of vision is sufficient. The operating rod is then slowly pushed forward. Even if the operating rod vibrates, once the ring contacts the parabolic ramp of the guide inlet, the ramp generates a center-directing guiding force, gradually straightening the ring and converging it towards the center. Then, the ring, guided to the center, contacts the guide wall 230, which acts as a conical guide. The conical surface further precisely positions the ring onto the central axis. As the operating rod continues to push forward, the ring slides down the conical surface and naturally slips into the working hole. During this process, the floating connection mechanism 300 undergoes slight deformation, absorbing contact impact and making the insertion smooth and gentle. After the pull ring is engaged in the working hole, the limiting flange 240 prevents it from coming off, allowing the operator to perform pull and close operations. After the operation is completed, slightly tilting and pulling the operating bar will allow the pull ring to easily come off from the side of the U-shaped notch.

[0074] In one embodiment, the floating connection mechanism 300 includes a plurality of elastic guide arms evenly distributed circumferentially. One end of each elastic guide arm is fixedly connected to the inner wall of the housing 100, and the other end is connected to a floating seat. The alignment guide assembly 200 is fixedly mounted on the floating seat. Based on the flexible deformation capability of the elastic guide arms, the alignment guide assembly 200 can be displaced radially, and the multiple elastic guide arms work together to allow the alignment guide assembly 200 to swing in any direction within a certain angle, achieving excellent automatic centering and buffering effects, and also having the function of floating in multiple directions.

[0075] In one embodiment, the floating connection mechanism 300 adopts a universal ball joint structure, specifically including: a spherical support fixed to the bottom of the inner cavity of the housing 100, a ball joint rod connected to the alignment guide assembly 200, and a set of compression springs. The ball head of the ball joint rod and the ball socket of the spherical support form a ball joint pair, allowing the alignment guide assembly 200 to swing in any direction within a certain angle. The compression spring is sleeved on the ball joint rod, with one end abutting against the step of the alignment guide assembly 200 or the ball joint rod, and the other end abutting against the fixed surface inside the housing 100, thereby providing the ball joint rod with an elastic restoring force to keep it in a vertical position; the ball joint structure can achieve excellent automatic centering and buffering effects, and uniform floating in multiple directions.

[0076] It is understood that the guide entrance in this embodiment works in conjunction with the guide wall 230, which serves as a conical guide. The wide, trumpet-shaped guide entrance significantly reduces the requirements for initial alignment accuracy. Even if the operating rod has significant wobbling or visual deviation, it can be captured as long as the pull ring enters the entrance area. Subsequently, the pull ring slides along the entrance slope towards the center and is further precisely guided to the working hanging hole by the conical guide, effectively offsetting the impact of operating rod vibration. In addition, the pull rod head structure provided in this application has an integrated intelligent lighting component that can actively illuminate the working area, significantly improving visibility at night or in dim environments. The photosensitive automatic control function enhances convenience and energy efficiency. Furthermore, the floating connection mechanism 300 improves fault tolerance and user experience. The use of an elastic guide arm or ball joint structure gives the alignment guide component 200 a certain floating capability and automatic centering capability. When the pull ring contacts the conical guide, this structure can absorb impact and allow for slight deviation, making the insertion process smoother and quieter, and improving the operating feel.

[0077] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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, and 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. Therefore, they should not be construed as limitations on this application.

[0078] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more. It should be noted that the term "and / or" used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Similarly, at least one of A or B can also represent: A alone, A and B simultaneously, or B alone.

[0079] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0080] In the foregoing description of this specification, references to terms such as "one embodiment," "another embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0081] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

Claims

1. A trolley head structure, characterized by, The pull rod head structure comprises a cover shell, an alignment guiding assembly and a floating connecting mechanism. The cover shell is formed with a guiding entrance. The alignment guiding assembly is centrally arranged in the guiding entrance. The floating connecting mechanism is arranged between the cover shell and the alignment guiding assembly, and is used for floatingly arranging the alignment guiding assembly on the cover shell. The floating connecting mechanism comprises a floating seat arranged on the alignment guiding assembly and a plurality of flexible arms, which are distributed along the circumference of the guiding entrance, one end of each flexible arm is connected with the cover shell, and the other end of each flexible arm is connected with the floating seat.

2. The drawbar head structure of claim 1, wherein: The floating connecting mechanism comprises a spherical support arranged on the cover shell, a spherical head rod, one end of which is connected with the alignment guiding assembly, and the other end of which is rotatably arranged on the spherical support, and an elastic component acting on the spherical head rod to make the spherical head rod have a freedom degree of radial movement along the guiding entrance.

3. The drawbar head structure of claim 1, wherein: The alignment guiding assembly comprises a front port, a rear port and a guide wall, the front port is butted with the guiding entrance, the rear port is arranged as a working hanging hole capable of acting on the pull ring, and the guide wall is connected with the front port and the rear port respectively and is arranged as a conical surface gradually narrowing in the direction from the front port to the rear port.

4. The drawbar head structure of claim 1, wherein: The outer side of the working hanging hole is provided with a limiting flange for preventing the pull ring from being pulled out.

5. The drawbar head structure of claim 4, wherein: The guiding entrance is arranged as a horn gradually narrowing in the direction from the front port to the rear port.

6. The drawbar head structure of claim 4, wherein: The pull rod head structure further comprises an illumination assembly arranged on the cover shell and used for providing a light source.

7. The drawbar head structure of claim 1, wherein: The illumination assembly comprises a light source module, an environment sensing module and a power supply module, the power supply module is used for supplying power to the light source module and the environment sensing module, the environment sensing module is used for detecting ambient light intensity, and the light source module is configured to be turned on, turned off or adjusted when the ambient light intensity detected by the environment sensing module reaches a preset threshold.

8. The drawbar head structure of claim 7, wherein: The pull rod head structure according to any one of claims 1 to 8.

9. A handle, characterized in that The pull rod head structure comprises the following steps: Lifting the operating rod to make the pull rod head structure approach the knife switch pull ring; 10. A method of using the operating stick of claim 9, characterized in that, Moving the operating rod to make the knife switch pull ring contact the guiding entrance; Advancing the operating rod relative to the knife switch pull ring to make the knife switch pull ring enter the guiding entrance and contact the alignment guiding assembly, and with the advancement of the operating rod, the knife switch pull ring is limited in a preset position by the alignment guiding assembly under the floating action and centering action of the alignment guiding assembly; Performing the opening or closing operation of the knife switch through the operating rod. The pull rod head structure comprises a cover shell, an alignment guiding assembly and a floating connecting mechanism. The cover shell is formed with a guiding entrance. The alignment guiding assembly is centrally arranged in the guiding entrance. The floating connecting mechanism is arranged between the cover shell and the alignment guiding assembly, and is used for floatingly arranging the alignment guiding assembly on the cover shell. The floating connecting mechanism comprises a floating seat arranged on the alignment guiding assembly and a plurality of flexible arms, which are distributed along the circumference of the guiding entrance, one end of each flexible arm is connected with the cover shell, and the other end of each flexible arm is connected with the floating seat. The floating connecting mechanism comprises a spherical support arranged on the cover shell, a spherical head rod, one end of which is connected with the alignment guiding assembly, and the other end of which is rotatably arranged on the spherical support, and an elastic component acting on the spherical head rod to make the spherical head rod have a freedom degree of radial movement along the guiding entrance. The alignment guiding assembly comprises a front port, a rear port and a guide wall, the front port is butted with the guiding entrance, the rear port is arranged as a working hanging hole capable of acting on the pull ring, and the guide wall is connected with the front port and the rear port respectively and is arranged as a conical surface gradually narrowing in the direction from the front port to the rear port. The outer side of the working hanging hole is provided with a limiting flange for preventing the pull ring from being pulled out. The guiding entrance is arranged as a horn gradually narrowing in the direction from the front port to the rear port. The pull rod head structure further comprises an illumination assembly arranged on the cover shell and used for providing a light source. The illumination assembly comprises a light source module, an environment sensing module and a power supply module, the power supply module is used for supplying power to the light source module and the environment sensing module, the environment sensing module is used for detecting ambient light intensity, and the light source module is configured to be turned on, turned off or adjusted when the ambient light intensity detected by the environment sensing module reaches a preset threshold. The pull rod head structure according to any one of claims 1 to 8. The pull rod head structure comprises the following steps: Lifting the operating rod to make the pull rod head structure approach the knife switch pull ring; Moving the operating rod to make the knife switch pull ring contact the guiding entrance; Advancing the operating rod relative to the knife switch pull ring to make the knife switch pull ring enter the guiding entrance and contact the alignment guiding assembly, and with the advancement of the operating rod, the knife switch pull ring is limited in a preset position by the alignment guiding assembly under the floating action and centering action of the alignment guiding assembly; Performing the opening or closing operation of the knife switch through the operating rod.

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