Pull rod assembly and energy storage equipment

Abstract

The invention provides a pull rod assembly and energy storage equipment, and the pull rod assembly comprises a fixed seat which is arranged on the energy storage equipment and is provided with a chute; the sliding part is in sliding fit with the sliding groove and can slide between a contraction position and an unfolding position, the sliding part is located at the contraction position and located in the sliding groove, the sliding part is located at the unfolding position, and at least one part of the sliding part is located outside the sliding groove; under the condition that the sliding piece is located at the unfolding position, the sliding piece can rotate around the first rotating axis and the second rotating axis relative to the fixed base. According to the pull rod assembly provided by the invention, when a user drags the energy storage equipment, the force application angle and direction can be easily adjusted according to the road surface condition, and the adaptability and control convenience of the mobile equipment in a complex environment are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment technology, and more specifically, to a tie rod assembly and an energy storage device. Background Technology

[0002] Energy storage devices are increasingly used in modern life, outdoor operations, and emergency power supply scenarios. These devices typically have a certain size and weight, and to facilitate movement, they often have a pull rod assembly on their casing. Users can easily move the device by pulling out the rod and tilting it. Currently, common pull rod assemblies usually include a fixed base attached to the device casing and a sliding rod or handle that extends and retracts relative to the fixed base. However, most existing designs only achieve simple linear extension and retraction, and their extended position is relatively fixed. When users need to adjust the dragging direction on complex terrains or in narrow spaces, the inflexible direction of the pull rod often requires laboriously twisting the entire device to change the direction of movement, resulting in cumbersome operation and a poor user experience. While some designs have attempted to introduce directional adjustment structures, they suffer from structural complexity and limited adjustment dimensions (e.g., only horizontal swing or only vertical tilt), making it difficult to maintain structural simplicity and stability while providing multi-dimensional flexible control.

[0003] Therefore, designing a pull rod assembly that can provide flexible adjustment capabilities in multiple planes and directions after unfolding, so that users can more easily and ergonomically adapt to different push and pull angle requirements, while maintaining structural stability and reliability, and intuitive and easy operation, has become an urgent problem to be solved. Summary of the Invention

[0004] The present invention aims to at least solve the problems in the related technologies, such as the inability to adjust the push-pull direction of the pull rod of energy storage device or the limited adjustment dimension.

[0005] Therefore, a first aspect of the present invention provides a pull rod assembly.

[0006] A second aspect of the present invention provides an energy storage device.

[0007] In view of this, a first aspect of the present invention provides a lever assembly for an energy storage device, the lever assembly comprising: a fixed base disposed in the energy storage device, the fixed base having a groove; and a sliding member slidably engaged with the groove, capable of sliding between a retracted position and an extended position, wherein the sliding member is located in the retracted position, the sliding member is located within the groove, the sliding member is located in the extended position, and at least a portion of the sliding member is located outside the groove; when the sliding member is in the extended position, the sliding member is rotatable relative to the fixed base about a first rotation axis and a second rotation axis.

[0008] The present invention provides a pull rod assembly for an energy storage device, which enables the energy storage device to be moved by pulling. The pull rod assembly includes a fixed base and a sliding member. The fixed base is fixedly installed on the energy storage device and has a groove formed on it. The sliding member and the groove form a stable sliding engagement, allowing the sliding member to slide between a retracted position and an extended position. When the sliding member is in the retracted position, it is located within the groove. When the sliding member is in the extended position, at least a portion of it is located outside the groove. In the extended position, the sliding member can rotate relative to the fixed base around a first rotation axis and a second rotation axis. By providing a fixed base with a groove and a sliding member that slides with the groove, the sliding member can move between a retracted position fully retracted within the groove and an extended position at least partially extended, achieving concealed storage and rapid deployment of the pull rod, effectively improving the overall aesthetics and portability of the energy storage device. Importantly, when the sliding member is in the extended position, it is configured to rotate relative to the fixed base around the first and second rotation axes. This dual-axis rotation design gives the lever flexible adjustment capability in multiple directions, allowing users to easily adjust the angle and direction of force application according to road conditions (such as uneven ground, steps, etc.) when towing energy storage devices. This significantly improves the adaptability and ease of operation of mobile devices in complex environments, fundamentally solving the technical problems of traditional rigid levers being difficult to operate and having poor adaptability when turning and overcoming obstacles. It also helps to reduce user fatigue and improve the user experience.

[0009] In some embodiments, the slider may optionally include: a sliding seat, at least a portion of which is located within a groove for sliding engagement with the groove; a connector rotatably connected to the sliding seat and capable of rotating about a first rotation axis relative to the sliding seat; and a sliding rod, one end of which is rotatably connected to the connector and capable of rotating about a second rotation axis relative to the connector.

[0010] In these embodiments, users can adjust the tilt angle and direction of the lever at any time according to actual movement needs and road conditions while towing the energy storage device, greatly enhancing the lever's control freedom and adaptability. This design not only ensures the lever's simplicity and concealment when stored, but also provides multi-directional and multi-angle adjustment functions when deployed, effectively solving the problems of stiff and laborious control that traditional levers have when turning, overcoming obstacles, or dealing with uneven road surfaces. This significantly improves the mobility of energy storage devices in complex environments and the user's operational comfort.

[0011] In some embodiments, optionally, a first limiting groove is provided on at least one side of the sliding seat opposite to the inner wall of the slide groove, and the pull rod assembly further includes: at least one first limiting member, disposed on the fixed seat and close to one end of the slide groove. When the sliding member is in the unfolded position, the first limiting member is located in the first limiting groove and is used to limit the sliding of the sliding member.

[0012] In these embodiments, effective limiting of the sliding component's movement is achieved, preventing it from accidentally sliding out of the deployed position or over-deploying, thus ensuring the stability and reliability of the deployed state. Through the cooperation of the first limiting component and the first limiting groove, a clear and reliable mechanical stop is provided for the sliding component in the deployed position. This allows the pull rod assembly to maintain a stable deployed state when the user is towing the energy storage device, bearing the dragging force without accidental retraction, thereby improving operational safety and controllability. This limiting design is simple in structure and easy to implement, effectively solving the problem of maintaining the position of the pull rod in the deployed state without adding extra complex operations, further optimizing the user experience.

[0013] In some embodiments, optionally, a second limiting groove is provided on at least one side of the sliding seat opposite to the inner wall of the slide groove, and the pull rod assembly further includes: at least one second limiting member, disposed on the fixed seat and close to the other end of the slide groove. When the sliding member is in the retracted position, the second limiting member is located in the second limiting groove and is used to limit the sliding of the sliding member.

[0014] In these embodiments, a clear and reliable limit is provided for the sliding member in the retracted position, effectively preventing the sliding member from accidentally dislodging from the groove or unfolding on its own due to vibration or accidental collision during equipment movement or transportation, ensuring absolute stability and safety in the retracted state. Through the cooperation of the second limiting member and the second limiting groove, dual mechanical locking of the pull rod assembly is achieved in both the "fully retracted" and "stable unfolded" states. This not only enhances the structural reliability and operational safety of the entire assembly but also ensures the clean and complete appearance of the energy storage device when not in use, improving the overall quality of the product. This design cleverly integrates the limiting function into the sliding fit structure, achieving state maintenance without additional complex operations, further optimizing the practicality and user experience of the pull rod assembly.

[0015] In some embodiments, the lever assembly may optionally include a handle disposed at the other end of the sliding rod, and at least a portion of the handle is slidably disposed within the sliding rod.

[0016] In these embodiments, the handle can be extended and retracted along the axis of the sliding rod for secondary extension and retraction. Users can flexibly adjust the extension length of the handle according to their height, operating habits, or specific dragging scenarios to obtain the most comfortable grip position and the most effortless force application posture. This design not only significantly improves the extension length and adaptability of the lever, reducing fatigue caused by prolonged dragging, but also further reduces the overall outline size of the lever assembly when stored by sliding the handle inward to its shortest position, making it more compact and contributing to the overall layout and neat appearance of the energy storage device. The combination of the sliding handle and the multi-directional rotating structure enables multi-dimensional flexible adjustment of the lever in terms of length and angle, allowing the energy storage device to provide an excellent mobile operation experience for different users, different road conditions, and different movement needs, fundamentally solving the limitations of traditional fixed levers that cannot adapt to individual differences and have a single operating posture.

[0017] In some embodiments, the tie rod assembly may optionally include: an elastic support portion disposed at the bottom of the connector and near the end of the connector away from the sliding rod, for providing elastic support to the connector, wherein a first rotation axis is located between the elastic support portion and the sliding rod.

[0018] In these embodiments, by providing an elastic support, elastic assistance can be provided for the rotation of the connector. The first axis of rotation is located spatially between this elastic support and the sliding rod. By reasonably setting the preload or initial deformation of the elastic support, the resistance torque generated by the gravity of the connector and its associated components can be partially offset, thereby significantly reducing the operating force required to start the rotation of the connector, making the rotation operation easier and less strenuous. Specifically, during the rotation process, the elastic support can rotate with the connector or remain stationary.

[0019] In some embodiments, the elastic support may optionally include: a support base rotatably mounted on a fixed base or energy storage device; a support rod, one end of which is connected to the support base; and an elastic pin disposed near the other end of the support rod, located between the support rod and the connector, for supporting the connector; wherein, when the connector rotates, it can drive the elastic support to rotate.

[0020] In these embodiments, by presetting the initial compression or preload of the elastic pin, a supporting force for balancing the gravitational torque of the connector can be precisely generated, thereby significantly reducing the operating torque when starting rotation and making rotation more effortless.

[0021] In some embodiments, the first rotation axis is optionally perpendicular to the second rotation axis.

[0022] In these embodiments, the first and second rotation axes are set to be perpendicular to each other. This spatial layout creates a two-degree-of-freedom rotation mechanism for the pull rod assembly. The rotation of the connector around the first rotation axis mainly realizes the directional adjustment of the pull rod in the horizontal plane to flexibly control the direction of travel. The rotation of the sliding rod around the second rotation axis realizes the tilt angle adjustment of the pull rod in the vertical plane to cope with terrain changes such as slopes and steps. The movements of the two perpendicular axes are independent yet can be operated in concert, allowing users to freely and precisely adjust the force application posture and direction of the pull rod in three-dimensional space according to complex road conditions and operational needs. This greatly expands the degree of freedom of control and significantly improves the adaptability of the pull rod assembly to uneven road surfaces, turning, and obstacle crossing scenarios, as well as the overall effort-saving operation.

[0023] In some embodiments, the pull rod assembly may optionally include: a support block disposed at the bottom of the slider, capable of sliding with the slider, for supporting the slider; wherein, along the extension direction of the slider, the support block is inclined away from the surface of the slider and toward the slider.

[0024] In these embodiments, direct contact and friction between the slider and other metal components can be effectively avoided during the extension and retraction of the slider. This not only significantly reduces noise generated by metal collisions during operation, improving the quietness of the experience, but also protects the surfaces of related components from scratches and wear. Furthermore, along the extension direction of the slider, the surface of the support block opposite to the slider is designed as an inclined surface facing closer to the slider. This structure guides and facilitates the smooth extension of the slider, further improving the smoothness and reliability of operation.

[0025] In some embodiments, the support block may be a rubber or plastic component.

[0026] In these embodiments, the support block is made of a soft material such as rubber or plastic, which effectively isolates the slider from direct contact with surrounding metal parts during its extension and retraction. This solves the problem of noise and wear caused by hard contact friction between metals. The rubber or plastic material not only cushions impacts through its own deformation, significantly reducing operating noise, but also protects the surface of metal parts from scratches. While achieving noise reduction and wear prevention, it also ensures the smoothness and precise guidance of the slider's extension and retraction, thereby improving the overall operating feel, noise reduction performance, and durability of the pull rod assembly.

[0027] In some embodiments, the fixed base may optionally have a first guide portion and the slider may have a second guide portion, the first guide portion being able to cooperate with the second guide portion for guiding the sliding of the slider.

[0028] In these embodiments, the first guide portion and the second guide portion cooperate to ensure that the slider maintains smooth and straight movement when sliding between the retracted and extended positions, effectively preventing wobble, jamming, or undesirable rotation during sliding. By optimizing the fitting accuracy and smoothness of the sliding pair, the consistency and reliability of the feel of the telescopic operation of the pull rod assembly are significantly improved, and a good initial position reference is provided for the slider to achieve flexible and stable dual-axis rotation after extension, thereby enhancing the overall structural rigidity and operational quality of the pull rod assembly.

[0029] In some embodiments, the first guide portion may be one of a guide groove and a guide block, and the second guide portion may be the other of a guide groove and a guide block.

[0030] In these embodiments, this guiding method, which combines guide grooves and guide blocks, provides a clear and stable sliding path for the sliding component's telescopic movement within the groove through precise geometric constraints. This effectively limits the lateral sway and circumferential rotation of the sliding component during movement, ensuring the linearity and smoothness of the sliding process, thereby improving the consistency and reliability of the operating feel. Simultaneously, this standardized and modular guide pair design also helps reduce machining and assembly precision requirements, improving the product's manufacturability and structural stability.

[0031] In some embodiments, optionally, there are multiple first guide portions and multiple second guide portions, with the multiple first guide portions symmetrically arranged and each first guide portion corresponding to a second guide portion.

[0032] In these embodiments, this multi-set and symmetrically arranged guide structure, by providing precise geometric constraints simultaneously on both sides or at multiple points of the slider, greatly enhances the guiding stability and motion accuracy of the slider during telescopic movement. It effectively prevents skewing, warping, or jamming that may occur when the slider is subjected to force on one side or after long-term use, ensuring smooth sliding along a predetermined trajectory. The symmetrical layout also helps to distribute the force on the slider more evenly, reducing local wear, extending the service life of the guide pair, and further improving the structural reliability, feel consistency, and durability of the entire pull rod assembly under repeated operation.

[0033] In some embodiments, the groove has an opening, and the slider is installed in the groove through the opening, with the opening area gradually increasing along the extension direction of the slider.

[0034] In these embodiments, the slide groove has an opening for the installation and sliding of the slider, and the opening area is designed to gradually increase along the extension direction of the slider. This gradually expanding structure provides greater room for movement and error tolerance for the slider during extension, effectively preventing rigid interference or jamming between the slider and the opening edge due to road bumps or lateral forces during operation, thus ensuring a smooth and reliable sliding process. Secondly, the gradually expanding opening guides and directs the slider when it retracts, making it easier to align and slide into the slide groove, simplifying the operation. In addition, the larger opening area also facilitates insertion during assembly and subsequent cleaning and maintenance. This design, by optimizing the opening shape, improves the adaptability of the tie rod assembly to different usage conditions and the overall ease of operation.

[0035] A second aspect of the present invention provides an energy storage device, comprising: a battery assembly; and a lever assembly, as described in any of the technical solutions of the first aspect, disposed on one side of the battery assembly.

[0036] The energy storage device provided by this invention includes a battery module and a lever assembly. The lever assembly is disposed on one side of the battery module and can move the battery module by means of the lever. Furthermore, since the energy storage device also includes the lever assembly described in any of the technical solutions of the first aspect, the energy storage device also possesses all the beneficial technical effects of the lever assembly described in any of the technical solutions of the first aspect.

[0037] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0039] Figure 1 One of the schematic diagrams of a partial structure of a tie rod assembly according to an embodiment of the present invention is shown;

[0040] Figure 2 A second schematic diagram of a partial structure of a tie rod assembly according to an embodiment of the present invention is shown;

[0041] Figure 3 The third schematic diagram shows a partial structural diagram of a tie rod assembly according to an embodiment of the present invention;

[0042] Figure 4 The fourth schematic diagram shows a partial structural diagram of a tie rod assembly according to an embodiment of the present invention;

[0043] Figure 5 Fifth schematic diagram of a partial structure of a tie rod assembly according to an embodiment of the present invention is shown;

[0044] Figure 6 A partial structural schematic diagram of a tie rod assembly according to an embodiment of the present invention is shown in Figure 6.

[0045] Figure 7 The seventh schematic diagram shows a partial structural diagram of a tie rod assembly according to an embodiment of the present invention;

[0046] Figure 8 One of the structural schematic diagrams of an energy storage device according to an embodiment of the present invention is shown;

[0047] Figure 9 It shows Figure 8 Enlarged view of point A in the middle;

[0048] Figure 10 A second schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0049] Figure 11 A third schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0050] Figure 12 The fourth schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention.

[0051] Among them, 1. Pull rod assembly; 10. Fixed base; 102. Slide groove; 1022. Opening; 104. First guide part; 11. Sliding member; 111. Sliding seat; 112. Connecting member; 113. Sliding rod; 114. Handle; 115. Elastic support part; 1152. Support seat; 1154. Support rod; 1156. Elastic pin; 116. Second guide part; 12. First limiting groove; 13. First limiting member; 14. Second limiting groove; 15. Second limiting member; 16. Support block; 17. Protective shell; 18. First rotation axis; 19. Second rotation axis; 2. Battery assembly; 3. Energy storage device. Detailed Implementation

[0052] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0054] The following reference Figures 1 to 12 The present invention describes a tie rod assembly and an energy storage device according to some embodiments thereof.

[0055] According to an embodiment of the first aspect of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, a first aspect of the present invention provides a lever assembly 1 for an energy storage device 3. The lever assembly 1 includes a fixed base 10 and a sliding member 11. The fixed base 10 is disposed on the energy storage device 3 and has a groove 102. The sliding member 11 is slidably engaged with the groove 102 and is capable of sliding between a retracted position and an extended position. In the retracted position, the sliding member 11 is located within the groove 102; in the extended position, at least a portion of the sliding member 11 is located outside the groove 102. When the sliding member 11 is in the extended position, it is rotatable relative to the fixed base 10 about a first rotation axis 18 and a second rotation axis 19.

[0056] The pull rod assembly 1 provided by the present invention is used for an energy storage device 3, and can move the energy storage device 3 by pulling it. The pull rod assembly 1 includes a fixed base 10 and a sliding member 11. The fixed base 10 is fixedly installed on the energy storage device 3, and a sliding groove 102 is formed on the fixed base 10. The sliding member 11 and the sliding groove 102 can form a stable sliding engagement relationship, allowing the sliding member 11 to slide between a retracted position and an extended position. When the sliding member 11 is in the retracted position, the sliding member 11 is located within the sliding groove 102. When the sliding member 11 is in the extended position, at least a portion of the sliding member 11 is located outside the sliding groove 102. When the sliding member 11 is in the extended position, the sliding member 11 can rotate relative to the fixed base 10 about a first rotation axis 18 and a second rotation axis 19. By setting a fixed base 10 with a groove 102 and a sliding member 11 that slides in conjunction with the groove 102, the sliding member 11 can move between a retracted position fully retracted within the groove 102 and an extended position at least partially extended. This achieves concealed storage and rapid deployment of the pull rod, effectively improving the overall aesthetics and portability of the energy storage device 3. More importantly, when the sliding member 11 is in the extended position, it is configured to rotate relative to the fixed base 10 around a first rotation axis 18 and a second rotation axis 19. This dual-axis rotation design gives the pull rod flexible adjustment capabilities in multiple directions, allowing users to easily adjust the angle and direction of force application according to road conditions (such as uneven ground, steps, etc.) when towing the energy storage device 3. This significantly improves the adaptability and ease of operation of mobile devices in complex environments, fundamentally solving the technical problems of traditional rigid pull rods being laborious to operate and having poor adaptability when turning and overcoming obstacles. It also helps reduce user fatigue and improve the user experience.

[0057] In some embodiments, the slider 11 may optionally include: a slider 111, at least a portion of which is located within a groove 102 for sliding engagement with the groove 102; a connector 112 rotatably connected to the slider 111 and rotatable relative to the slider 111 about a first rotation axis 18; and a slider 113, one end of which is rotatably connected to the connector 112 and rotatable relative to the connector 112 about a second rotation axis 19.

[0058] In these embodiments, the slider 11 is specifically configured to include a sliding seat 111, a connecting member 112, and a sliding rod 113. At least a portion of the sliding seat 111 is located within the groove 102, forming a sliding engagement with the groove 102, thereby ensuring that the slider 11 can slide stably along the groove 102, realizing the switching between the retracted and extended positions. The connecting member 112 is rotatably connected to the sliding seat 111, allowing the connecting member 112 to rotate relative to the sliding seat 111 about a first rotation axis 18, providing a first-dimensional directional adjustment capability for the pull rod assembly 1. One end of the sliding rod 113 is rotatably connected to the connecting member 112 and can rotate relative to the connecting member 112 about a second rotation axis 19, thereby realizing a second-dimensional directional adjustment. Through this layered rotation structure, the sliding member 11 can flexibly rotate around the first rotation axis 18 and the second rotation axis 19 in the unfolded position. This allows the user to adjust the tilt angle and direction of the lever at any time according to actual movement needs and road conditions while towing the energy storage device 3, greatly enhancing the lever's control freedom and adaptability. This design not only ensures the lever's simplicity and concealment when stored, but also provides multi-directional and multi-angle adjustment functions when unfolded. It effectively solves the problems of stiff and laborious control that traditional levers have when turning, overcoming obstacles, or dealing with uneven roads, significantly improving the mobility of the energy storage device 3 in complex environments and the user's operational comfort.

[0059] In some embodiments, optionally, a first limiting groove 12 is provided on at least one side of the sliding seat 111 opposite to the inner wall of the slide groove 102. The pull rod assembly 1 further includes at least one first limiting member 13, which is disposed on the fixed seat 10 and close to one end of the slide groove 102. When the sliding member 11 is in the unfolded position, the first limiting member 13 is located in the first limiting groove 12 and is used to limit the sliding of the sliding member 11.

[0060] In these embodiments, a first limiting groove 12 is provided on at least one side of the sliding seat 111 opposite to the inner wall of the slide groove 102. The pull rod assembly 1 also includes at least one first limiting member 13, which is disposed on the fixed seat 10 and near one end of the slide groove 102. When the sliding member 11 slides from the retracted position to the extended position, the first limiting member 13 can be precisely embedded or locked into the first limiting groove 12 on the sliding seat 111. This structure effectively limits the sliding of the sliding member 11, preventing it from accidentally sliding out or over-extending from the extended position, ensuring the stability and reliability of the extended state. Through the cooperation of the first limiting member 13 and the first limiting groove 12, a clear and reliable mechanical stop is provided for the sliding member 11 in the extended position, so that when the user drags the energy storage device 3, the pull rod assembly 1 can maintain a stable extended state, withstand the dragging force without accidental retraction, thereby improving the safety and controllability of operation. This limit design is simple in structure and easy to implement. Without adding any extra complicated operations, it effectively solves the problem of maintaining the position of the lever in the extended state, further optimizing the user experience.

[0061] Optionally, the first limiting member 13 includes at least one or a combination of a limiting pin, a limiting shaft, and a limiting block.

[0062] In some embodiments, optionally, a second limiting groove 14 is provided on at least one side of the sliding seat 111 opposite to the inner wall of the slide groove 102. The pull rod assembly 1 further includes at least one second limiting member 15, which is disposed on the fixed seat 10 and close to the other end of the slide groove 102. When the sliding member 11 is in the retracted position, the second limiting member 15 is located in the second limiting groove 14 and is used to limit the sliding of the sliding member 11.

[0063] In these embodiments, at least one side of the sliding seat 111 opposite to the inner wall of the slide groove 102 is further provided with a second limiting groove 14. The pull rod assembly 1 also includes at least one second limiting member 15, which is disposed on the fixed seat 10 but located at the other end near the slide groove 102, opposite to the first limiting member 13. When the sliding member 11 slides back from the unfolded position to the fully retracted position, the second limiting member 15 can be correspondingly embedded or locked into the second limiting groove 14 of the sliding seat 111. This structure provides a clear and reliable limit for the sliding member 11 in the retracted position, effectively preventing the sliding member 11 from accidentally coming out of the slide groove 102 or unfolding on its own due to vibration or accidental collision during equipment movement or transportation, ensuring absolute stability and safety in the retracted state. Through the cooperation of the second limiting member 15 and the second limiting groove 14, dual mechanical locking of the pull rod assembly 1 is achieved in both the "fully retracted" and "stable unfolded" states. This not only enhances the structural reliability and operational safety of the entire component, but also ensures the clean and intact appearance of the energy storage device 3 when not in use, improving the overall quality of the product. This design cleverly integrates the limiting function into the sliding fit structure, achieving state maintenance without additional complex operations, further optimizing the practicality and user experience of the lever assembly 1.

[0064] Optionally, the second limiting member 15 includes at least one or a combination of a limiting pin, a limiting shaft, and a limiting block.

[0065] In some embodiments, the lever assembly 1 may optionally include a handle 114 disposed at the other end of the sliding rod 113, and at least a portion of the handle 114 is slidably disposed within the sliding rod 113.

[0066] In these embodiments, the pull rod assembly 1 also includes a handle 114. The handle 114 is located at the end of the sliding rod 113 away from the connector 112, that is, at the other end of the sliding rod 113. At least a portion of the handle 114 is configured to be slidably disposed inside the sliding rod 113. This slidable connection structure allows the handle 114 to be extended and retracted along the axial direction of the sliding rod 113 for secondary extension and retraction. Users can flexibly adjust the extension length of the handle 114 according to their height, operating habits, or specific dragging scenarios to obtain the most comfortable grip position and the most effortless force application posture. This design not only significantly improves the extension length and adaptability of the pull rod and reduces fatigue caused by dragging for a long time, but also, when storing, by sliding the handle 114 inward to its shortest position, the overall outline size of the pull rod assembly 1 can be further reduced, making it more compact and contributing to the overall layout and neat appearance of the energy storage device 3. The combination of the sliding handle 114 and the multi-directional rotating structure enables the lever to be flexibly adjusted in length and angle in multiple dimensions. This allows the energy storage device 3 to obtain an excellent mobile control experience under different users, different road conditions and different mobility needs, fundamentally solving the limitations of traditional fixed levers that cannot adapt to individual differences and have a single operating posture.

[0067] In some embodiments, the pull rod assembly 1 may optionally include: an elastic support portion 115 disposed at the bottom of the connector 112 and near the end of the connector 112 away from the sliding rod 113, for elastically supporting the connector 112, and a first rotation axis 18 located between the elastic support portion 115 and the sliding rod 113.

[0068] In these embodiments, the tie rod assembly 1 further includes an elastic support portion 115. The elastic support portion 115 is disposed at the bottom of the connector 112 and located at the end of the connector 112 away from the sliding rod 113. Its core function is to provide elastic assistance for the rotation of the connector 112. The first rotation axis 18 is spatially located between this elastic support portion 115 and the sliding rod 113. By reasonably setting the preload or initial deformation of the elastic support portion 115, the resistance torque generated by the gravity of the connector 112 and its associated components can be partially offset, thereby significantly reducing the operating force required when the connector 112 starts to rotate, making the rotation operation more convenient and effortless. Specifically, during rotation, the elastic support portion 115 can rotate with the connector 112 or remain stationary.

[0069] In some embodiments, the elastic support 115 may optionally include: a support base 1152, rotatably mounted on the fixed base 10 or the energy storage device 3; a support rod 1154, one end of which is connected to the support base 1152; and an elastic pin 1156, disposed near the other end of the support rod 1154, located between the support rod 1154 and the connector 112, for supporting the connector 112; wherein, when the connector 112 rotates, it can drive the elastic support 115 to rotate.

[0070] In these embodiments, the elastic support portion 115 includes a support base 1152, a support rod 1154, and an elastic pin 1156. The support base 1152 is rotatably mounted on the fixed base 10 or the energy storage device 3. One end of the support rod 1154 is connected to the support base 1152. The elastic pin 1156 is located near the other end of the support rod 1154 and between the support rod 1154 and the bottom of the connector 112. When the connector 112 rotates about the first rotation axis 18, it can drive the entire elastic support portion 115 to rotate in tandem. This configuration, by presetting the initial compression or preload of the elastic pin 1156, can precisely generate a supporting force to balance the gravitational torque of the connector 112, thereby significantly reducing the operating torque during rotation initiation and making rotation more effortless.

[0071] In some embodiments, the first rotation axis 18 is optionally perpendicular to the second rotation axis 19.

[0072] In these embodiments, the first rotation axis 18 and the second rotation axis 19 are set to be perpendicular to each other. This spatial layout creates a two-degree-of-freedom rotation mechanism for the pull rod assembly 1. The rotation of the connector 112 around the first rotation axis 18 mainly realizes the direction adjustment of the pull rod in the horizontal plane to flexibly control the direction of travel. The rotation of the sliding rod 113 around the second rotation axis 19 realizes the tilt angle adjustment of the pull rod in the vertical plane to cope with terrain changes such as slopes and steps. The movements of the two vertical axes are independent of each other and can be operated in coordination, allowing the user to freely and accurately adjust the force application posture and direction of the pull rod in three-dimensional space according to complex road conditions and operational needs, thereby greatly expanding the degree of freedom of operation and significantly improving the adaptability of the pull rod assembly 1 to uneven road surfaces, turning, and obstacle crossing scenarios, as well as the overall effort-saving operation.

[0073] In some embodiments, optionally, the pull rod assembly 1 further includes: a support block 16, disposed at the bottom of the slider 11, capable of sliding along with the slider 11, for supporting the slider 11; wherein, along the extension direction of the slider 11 (e.g., Figure 10 (in the direction indicated by F in the middle), the surface of the support block 16 is inclined towards the slider 11 from the surface away from the slider 11.

[0074] In these embodiments, the pull rod assembly 1 further includes a support block 16 disposed at the bottom of the slider 11. The support block 16 can slide along with the slider 11 to provide auxiliary support for the slider 11. This effectively prevents direct contact and friction between the slider 11 and other metal parts during the extension and retraction of the slider 11. This not only significantly reduces noise generated by metal collisions during operation, improving the quiet operation experience, but also protects the surfaces of related components from scratches and wear. Furthermore, along the extension direction of the slider 11, the surface of the support block 16 is designed as an inclined surface facing towards the slider 11. This structure guides and facilitates the smooth extension of the slider 11, further improving the smoothness and reliability of operation.

[0075] In some embodiments, the support block 16 may be a rubber or plastic component.

[0076] In these embodiments, the support block 16 is made of rubber or plastic. Using soft materials like rubber or plastic to make the support block 16 effectively isolates the slider 11 from direct contact with surrounding metal parts during its extension and retraction. This solves the problem of noise and wear caused by hard contact friction between metal parts. The rubber or plastic material not only cushions impacts through its own deformation, significantly reducing operating noise, but also protects the surface of metal parts from scratches. While achieving noise reduction and wear prevention, it also ensures the smoothness and precise guidance of the slider 11's extension and retraction movements, thereby improving the overall operating feel, noise reduction performance, and durability of the pull rod assembly 1.

[0077] In some embodiments, the fixed base 10 may optionally have a first guide portion 104 and the slider 11 has a second guide portion 116. The first guide portion 104 can cooperate with the second guide portion 116 to guide the sliding of the slider 11.

[0078] In these embodiments, the fixed base 10 is further provided with a first guide portion 104, and the sliding member 11 is correspondingly provided with a second guide portion 116. The first guide portion 104 and the second guide portion 116 cooperate with each other, and their core function is to precisely guide and constrain the sliding trajectory of the sliding member 11 in the slide groove 102. This design ensures that the sliding member 11 can maintain a smooth and straight movement when sliding between the retracted position and the extended position, effectively preventing swaying, jamming, or undesirable rotation during the sliding process. By optimizing the matching accuracy and smoothness of the sliding pair, the consistency and reliability of the feel of the telescopic operation of the pull rod assembly 1 are significantly improved, and a good initial position reference is provided for the sliding member 11 to achieve flexible and stable dual-axis rotation after extension, thereby enhancing the structural rigidity and operational quality of the pull rod assembly 1 as a whole.

[0079] In some embodiments, the first guide portion 104 may be one of a guide groove and a guide block, and the second guide portion 116 may be the other of a guide groove and a guide block.

[0080] In these embodiments, the first guide portion 104 is one of a guide groove and a guide block, while the second guide portion 116 is the other of a guide groove and a guide block. For example, a long strip-shaped guide groove can be provided on the fixed base 10, and a corresponding guide block that can be embedded in the groove can be provided on the slider 11, or the opposite arrangement can be used. This cooperative guiding method, through precise geometric constraints, provides a clear and stable sliding path for the telescopic movement of the slider 11 within the slide groove 102. It not only effectively limits the lateral swaying and circumferential rotation of the slider 11 during movement, ensuring the straightness and smoothness of the sliding process, but also improves the consistency and reliability of the operating feel. At the same time, this standardized and modular guide pair design also helps to reduce the requirements for machining and assembly precision, and improves the manufacturability and structural stability of the product.

[0081] In some embodiments, optionally, there are multiple first guide portions 104 and multiple second guide portions 116, with the multiple first guide portions 104 symmetrically arranged and each first guide portion 104 corresponding to a second guide portion 116.

[0082] In these embodiments, there are multiple first guide portions 104 and multiple second guide portions 116, and the multiple first guide portions 104 are arranged symmetrically, with each first guide portion 104 forming a one-to-one matching relationship with a second guide portion 116. This multi-set and symmetrically arranged guide structure greatly enhances the guiding stability and movement accuracy of the slider 11 during its telescopic movement by providing precise geometric constraints on both sides or multiple points of the slider 11 simultaneously. It can effectively prevent the slider 11 from skewing, warping, or jamming that may occur after being subjected to force on one side or after long-term use, ensuring that it slides smoothly along a predetermined trajectory. The symmetrical layout also helps to make the slider 11 more evenly stressed, reduce local wear, extend the service life of the guide pair, and further improve the structural reliability, feel consistency, and durability of the entire pull rod assembly 1 under repeated operation.

[0083] In some embodiments, the slide 102 has an opening 1022, and the slider 11 is installed in the slide 102 through the opening 1022. The opening area of ​​the opening 1022 gradually increases along the extension direction of the slider 11.

[0084] In these embodiments, the slide groove 102 is provided with an opening 1022 for the installation and sliding of the slider 11, and the opening area of ​​the opening 1022 is designed to gradually increase along the extension direction of the slider 11. This gradually expanding structure provides the slider 11 with greater room for movement and error tolerance during extension, effectively preventing rigid interference or jamming between the slider 11 and the edge of the opening 1022 due to road bumps or lateral forces during operation, thereby ensuring a smooth and reliable sliding process. Secondly, the gradually expanding opening 1022 plays a guiding and guiding role when the slider 11 retracts, making it easier to align and slide into the slide groove 102, simplifying the operation. In addition, the larger opening area also facilitates the insertion operation during assembly and subsequent cleaning and maintenance. This design, by optimizing the shape of the opening 1022, improves the adaptability of the pull rod assembly 1 to different usage conditions and the overall ease of operation.

[0085] In some embodiments, the pull rod assembly 1 may optionally include a protective shell 17, which covers the outside of the fixing seat 10 and is used to protect the fixing seat 10.

[0086] A second aspect of the present invention provides an energy storage device 3, comprising: a battery assembly 2; and a lever assembly 1, as in any embodiment of the first aspect, disposed on one side of the battery assembly 2.

[0087] The energy storage device 3 provided by the present invention includes a battery assembly 2 and a pull rod assembly 1. The pull rod assembly 1 is disposed on one side of the battery assembly 2 and can move the battery assembly 2 by pulling the rod. Furthermore, since the energy storage device 3 also includes the pull rod assembly 1 as described in any embodiment of the first aspect, the energy storage device 3 also possesses all the beneficial technical effects of the pull rod assembly 1 as described in any embodiment of the first aspect.

[0088] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0089] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tie rod assembly, characterized in that, For use in energy storage devices, the tie rod assembly includes: A mounting base is disposed on the energy storage device, and the mounting base has a sliding groove; A slider, which slides in conjunction with the groove, is capable of sliding between a retracted position and an extended position. The slider is located in the retracted position, inside the groove, and in the extended position, with at least a portion of the slider located outside the groove. When the slider is in the unfolded position, the slider can rotate relative to the fixed base about a first rotation axis and a second rotation axis.

2. The tie rod assembly according to claim 1, characterized in that, The slider includes: A sliding seat, at least a portion of which is located within the sliding groove for sliding engagement with the sliding groove; A connector, which is rotatably connected to the sliding seat, and the connector is rotatable relative to the sliding seat about the first rotation axis; A sliding rod, one end of which is rotatably connected to the connecting member, and the sliding rod is rotatable about the second rotation axis relative to the connecting member.

3. The tie rod assembly according to claim 2, characterized in that, The sliding seat has a first limiting groove on at least one side opposite to the inner wall of the slide groove, and the pull rod assembly further includes: At least one first limiting member is disposed on the fixed base and near one end of the sliding groove. When the sliding member is in the unfolded position, the first limiting member is located in the first limiting groove and is used to limit the sliding of the sliding member.

4. The tie rod assembly according to claim 2, characterized in that, The sliding seat has a second limiting groove on at least one side opposite to the inner wall of the sliding groove, and the pull rod assembly further includes: At least one second limiting member is disposed on the fixed base and near the other end of the slide groove. When the sliding member is in the retracted position, the second limiting member is located in the second limiting groove and is used to limit the sliding of the sliding member.

5. The tie rod assembly according to claim 2, characterized in that, Also includes: A handle is provided at the other end of the sliding rod, and at least a portion of the handle is slidably disposed within the sliding rod.

6. The tie rod assembly according to claim 2, characterized in that, Also includes: An elastic support portion is disposed at the bottom of the connector and near the end of the connector away from the sliding rod, for providing elastic support to the connector, and the first rotation axis is located between the elastic support portion and the sliding rod.

7. The tie rod assembly according to claim 6, characterized in that, The elastic support portion includes: A support base is rotatably mounted on the fixed base or the energy storage device; A support rod, one end of which is connected to the support base; A flexible pin is provided near the other end of the support rod, located between the support rod and the connector, and is used to support the connector. When the connector rotates, it can drive the elastic support to rotate as well.

8. The tie rod assembly according to claim 1 or 2, characterized in that, The first rotation axis is perpendicular to the second rotation axis.

9. The tie rod assembly according to any one of claims 1 to 7, characterized in that, Also includes: A support block is disposed at the bottom of the slider and can slide along with the slider to support the slider; Wherein, along the extension direction of the slider, the surface of the support block away from the slider is inclined toward the slider.

10. The tie rod assembly according to claim 9, characterized in that, The support block is made of rubber or plastic.

11. The tie rod assembly according to any one of claims 1 to 7, characterized in that, The fixed base also has a first guide portion, and the sliding member has a second guide portion. The first guide portion can cooperate with the second guide portion to guide the sliding of the sliding member.

12. The tie rod assembly according to claim 11, characterized in that, The first guide portion is one of the guide groove and the guide block, and the second guide portion is the other of the guide groove and the guide block.

13. The tie rod assembly according to claim 11, characterized in that, There are multiple first guide portions and multiple second guide portions, and the multiple first guide portions are symmetrically arranged, with one first guide portion and one second guide portion corresponding to each other.

14. The tie rod assembly according to any one of claims 1 to 7, characterized in that, The slide groove has an opening, and the sliding member is installed in the slide groove through the opening. The opening area gradually increases along the extension direction of the sliding member.

15. An energy storage device, characterized in that, include: Battery components; The lever assembly as described in any one of claims 1 to 14 is disposed on one side of the battery assembly.

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