Two-section multifunctional pull rod with built-in automatic button

By incorporating two built-in automatic buttons and an electromagnetic push rod for automatic adjustment, the problem of complex traditional pull rod length adjustment is solved, enabling convenient adjustment and multi-functional power support, thus enhancing the user experience.

CN223489309UActive Publication Date: 2025-10-31HANGZHOU DAYU BAG & SUITCASE CO LTD
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Patent Information

Application Number
CN202520319710.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2025-10-31
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Traditional lever length adjustment methods are complicated, which is especially inconvenient for users when frequent adjustments are needed.

Method used

It adopts a two-section built-in automatic button design, which controls the electromagnetic push rod to achieve automatic adjustment of the telescopic link by pressing the control button, and is powered by a built-in battery in the handle, simplifying the length adjustment process.

Benefits of technology

It enables convenient adjustment of the lever length, improving usage efficiency, and provides power support through a built-in power bank and multi-functional interface, expanding its application range.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a two-section built-in automatic button multifunctional pull rod, which relates to the technical field of pull rods, and comprises a fixed seat, the outer wall of the fixed seat is provided with a contraction groove, the bottom surface of the fixed seat is fixedly connected with a bottom rod, the top end of the bottom rod is connected to the inner wall of the contraction groove in a penetrating manner, and the inner wall of the bottom rod is movably connected with two sections of telescopic connecting rods. The two sections of telescopic connecting rods comprise a first connecting rod and a second connecting rod, the bottom end of the first connecting rod is movably connected to the inner wall of the bottom rod, the second connecting rod is movably connected to the inner wall of the first connecting rod, and the top end of the second connecting rod is fixedly connected with a grip. The electromagnetic push rod is controlled by the storage battery to be powered on so that the telescopic rods at the two ends of the electromagnetic push rod can contract, after the two telescopic connecting rods are pulled out in place, the grip is pressed again to control the electromagnetic push rod to push the telescopic rods out of the limiting clamping grooves to be clamped and limited, and therefore a user can conveniently adjust and control the length.
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Description

Technical Field

[0001] This utility model relates to the field of pull rod technology, and in particular to a two-section multi-functional pull rod with built-in automatic buttons. Background Technology

[0002] A trolley handle is a device used for pulling objects, mainly consisting of a handle and a lever. Its basic function is to allow the object connected to it to move on the ground by transmitting force through the lever when the handle is held. In the application of suitcases, the trolley handle connects to the suitcase, and people pull the handle to make the wheels of the suitcase roll on the ground, thus making it convenient to carry luggage.

[0003] However, in existing technologies, the traditional methods for adjusting the length of pull rods are usually quite complex. For example, some pull rods use a rotary adjustment method, requiring users to manually rotate the nut or knob on the rod to fix or loosen the inner rod in order to adjust the length. This is time-consuming, especially when users need to frequently adjust the length of the pull rod, which can be inconvenient for them. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the traditional length adjustment method of pull rods is usually quite complicated. For example, some pull rods use a rotary adjustment method, which requires the user to manually rotate the nut or knob on the rod to fix or loosen the inner rod in order to achieve length adjustment. This is time-consuming, especially when the user needs to adjust the length of the pull rod frequently, which will cause inconvenience to the user. The proposed invention is a two-section multi-functional pull rod with built-in automatic button.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a two-section multi-functional pull rod with built-in automatic buttons, including a fixed base. The outer wall of the fixed base has a retraction groove. A bottom rod is fixedly connected to the bottom surface of the fixed base. The top end of the bottom rod is connected through to the inner wall of the retraction groove. Two telescopic connecting rods are movably connected to the inner wall of the bottom rod. The two telescopic connecting rods include connecting rod one and connecting rod two. The bottom end of connecting rod one is movably connected to the inner wall of the bottom rod. Connecting rod two is movably connected to the inner wall of connecting rod one. A handle is fixedly connected to the top end of connecting rod two. A control button is installed on the outer wall of one end of the handle. A battery is installed on the inner wall of the handle. The control button is electrically connected to the battery. Limit slots are provided on the inner walls of both the bottom rod and connecting rod one. Electromagnetic push rods are installed on the inner walls of the bottom ends of both connecting rod one and connecting rod two. One end of the telescopic rod of the electromagnetic push rod engages with the inner wall of the limit slot.

[0006] Preferably, a base plate is fixedly connected to the bottom end of the base rod, the outer wall of the base plate is provided with an installation groove, and the inner wall of the installation groove is provided with a fixing hole.

[0007] Preferably, a fixing sleeve is fixedly connected to the bottom surface of the fixing base, and heat dissipation holes are provided through the outer wall of the fixing sleeve.

[0008] Preferably, the inner wall of the shrinkage groove has a through-hole, and the interior of the through-hole is connected to the interior of the fixing sleeve.

[0009] Preferably, a sealing gasket is fixedly connected to the inner wall of the placement port, and a rubber sleeve is provided on one side of the placement port.

[0010] Preferably, the rubber sleeve is fixedly connected to the top surface of the bottom rod, and the inner wall of the rubber sleeve is movably connected to the outer wall of the two telescopic connecting rods.

[0011] Preferably, a wiring panel is installed on the top surface of the fixing base.

[0012] Preferably, a control circuit board is fixedly installed on the inner wall of the grip, and the control circuit board is electrically connected to the battery.

[0013] Preferably, the battery is electrically connected to the electromagnetic push rod.

[0014] Preferably, the wiring panel is electrically connected to the control circuit board.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, a control signal is sent by pressing the control button, and the electromagnetic push rod is energized by the battery to retract the telescopic rods at both ends. After the two telescopic connecting rods are pulled out to their positions, the handle is pressed again to control the electromagnetic push rod to push the telescopic rod out and engage with the limiting slot, thereby allowing the user to easily adjust the length.

[0017] 2. In this utility model, the base plate is installed and fixed by the mounting groove and fixing hole. The fixed sleeve plate allows the user to place the power bank in the fixed sleeve plate and connect it to the wiring panel for power supply using the power cord. In the use of this utility model, the other interfaces of the wiring panel can be used to power other devices, making this utility model multifunctional. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a two-section multi-functional pull rod with built-in automatic buttons is provided for this utility model;

[0019] Figure 2 This utility model proposes a two-section multi-functional pull rod with built-in automatic buttons. Figure 1 Enlarged view of the structure at point A in the middle;

[0020] Figure 3 A rear view structural diagram of the two-section multi-functional pull rod with built-in automatic buttons is provided for this utility model;

[0021] Figure 4 This utility model presents a partial internal structure diagram of a two-section multi-functional pull rod with built-in automatic buttons;

[0022] Figure 5 This utility model presents a schematic diagram of the internal structure of a two-section multi-functional pull rod handle with built-in automatic buttons.

[0023] Legend: 1. Fixed base; 11. Shrinkage groove; 12. Rubber sleeve; 13. Placement port; 14. Sealing gasket; 15. Wiring panel; 2. Base rod; 3. Base plate; 31. Mounting groove; 32. Fixing hole; 4. Fixing sleeve plate; 41. Heat dissipation hole; 5. Two-section telescopic connecting rod; 51. Connecting rod one; 52. Connecting rod two; 53. Electromagnetic push rod; 6. Handle; 61. Control button; 62. Control circuit board; 63. Battery; 7. Limiting slot. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides a two-section multi-functional pull rod with built-in automatic buttons, including a fixed base 1. The outer wall of the fixed base 1 has a retraction groove 11. A bottom rod 2 is fixedly connected to the bottom surface of the fixed base 1. The top end of the bottom rod 2 is connected through to the inner wall of the retraction groove 11. Two telescopic connecting rods 5 are movably connected to the inner wall of the bottom rod 2. The two telescopic connecting rods 5 include connecting rod one 51 and connecting rod two 52. The bottom end of connecting rod one 51 is movably connected to the inner wall of the bottom rod 2, and connecting rod two 52 is movably connected to the bottom wall of the bottom rod 2. A handle 6 is fixedly connected to the top of the first connecting rod 51 and the inner wall of the second connecting rod 52. A control button 61 is installed on the outer wall of one end of the handle 6, and a battery 63 is installed on the inner wall of the handle 6. The control button 61 and the battery 63 are electrically connected. Limiting slots 7 are opened on the inner walls of the bottom rod 2 and the first connecting rod 51. Electromagnetic push rods 53 are installed on the inner walls of the bottom ends of the first connecting rod 51 and the second connecting rod 52. One end of the telescopic rod of the electromagnetic push rod 53 is engaged with the inner wall of the limiting slot 7.

[0027] The specific settings and functions of this embodiment will be described in detail below. In actual operation, when it is necessary to pull out the two telescopic linkages 5, the user first needs to press the control button 61. Once the control button 61 is pressed, it will immediately send a corresponding control signal, which will be transmitted to the connected battery 63. After receiving the signal, the battery 63 will provide power to the electromagnetic push rod 53, energizing it. After the electromagnetic push rod 53 is energized, the telescopic rods at both ends will begin to retract according to electromagnetic principles. This retraction action will release the two telescopic linkages 5, which were originally in a certain restricted state, so that they can be pulled out smoothly. After the user pulls the two telescopic linkages 5 to the predetermined position, he / she presses the handle 6 again. The grip 6 also controls the electromagnetic actuator 53. When the actuator 53 receives the signal again, it reacts by extending the previously retracted telescopic rod outwards. A limit slot 7 is provided on the outside of the telescopic linkage 5. When the telescopic rod is extended, it precisely engages with the limit slot 7, achieving a locking and limiting effect within the slot. Through this series of coherent and orderly operating steps, the user can easily and conveniently adjust the length of the telescopic linkage 5 to meet the needs of different scenarios.

[0028] Example 2: Figure 1 - Figure 5 As shown, a base plate 3 is fixedly connected to the bottom end of the base rod 2. The outer wall of the base plate 3 has an installation groove 31, and the inner wall of the installation groove 31 has a fixing hole 32. A fixing sleeve plate 4 is fixedly connected to the bottom surface of the fixing seat 1. A heat dissipation hole 41 is opened through the outer wall of the fixing sleeve plate 4. A placement opening 13 is opened through the inner wall of the shrink groove 11. The interior of the placement opening 13 is connected to the interior of the fixing sleeve plate 4. A sealing gasket 14 is fixedly connected to the inner wall of the placement opening 13. A rubber sleeve 12 is provided on one side of the placement opening 13. A wiring panel 15 is installed on the top surface of the fixing seat 1. A control circuit board 62 is fixedly installed on the inner wall of the handle 6. The control circuit board 62 is electrically connected to the battery 63. The battery 63 is electrically connected to the electromagnetic push rod 53. The wiring panel 15 is electrically connected to the control circuit board 62.

[0029] The overall effect of this embodiment is that the base plate 3 is installed and fixed through the mounting groove 31 and the fixing hole 32. The unique design of the mounting groove 31 allows for precise fitting with specific installation locations, while the fixing hole 32 provides ideal connection points for screws, bolts, and other fasteners. By inserting suitable fasteners into the fixing hole 32 and tightly connecting them with the corresponding support structure, the base plate 3 is firmly and stably positioned in the predetermined location, laying a solid foundation for the entire device. The fixing sleeve 4 allows the user to place the power bank inside and connect it to the wiring panel 15 using the power cord. The power cord connects the power bank to the wiring panel 15, thus achieving effective power supply functionality. Once successfully connected, this invention can utilize the abundant interface resources of the wiring panel 15 to not only provide stable power support for its own normal operation but also simultaneously power various other devices. Whether it's charging smart mobile devices like phones and tablets, or providing power to small fans, LED lights, and other electrical appliances, it can be easily achieved. This undoubtedly greatly expands the application scope of this utility model, giving it excellent multi-functionality and meeting the diverse power needs of different users in various scenarios. The heat dissipation holes 41 facilitate ventilation and heat dissipation within the fixing sleeve 4, allowing external cold air to flow smoothly into the fixing sleeve 4 and fully exchange with the internal hot air, thereby effectively reducing the internal temperature and ensuring that the power bank can work stably in a suitable temperature environment, further improving the reliability and safety of the device. The sealing gasket 14 is used to fill the gaps between the power bank and the fixing sleeve 4 after it is placed inside, thereby preventing the power bank from shaking and falling off.

[0030] The usage and working principle of this device are as follows: During use, the base plate 3 is installed and fixed using the mounting slot 31 and fixing hole 32. When the two telescopic connecting rods 5 need to be pulled out, a control signal is sent by pressing the control button 61. The battery 63 controls the electromagnetic push rod 53 to retract its two ends. After the two telescopic connecting rods 5 are pulled out to their positions, the handle 6 is pressed again to control the electromagnetic push rod 53 to push the telescopic rod out and engage with the limiting slot 7. The fixed sleeve 4 allows the user to place a power bank inside and connect it to the wiring panel 15 for power supply. In using this invention, the other interfaces of the wiring panel 15 can be used to power other devices.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A two-section multi-functional pull rod with built-in automatic buttons, including a fixing base (1), characterized in that: The outer wall of the fixed base (1) is provided with a contraction groove (11). A bottom rod (2) is fixedly connected to the bottom surface of the fixed base (1). The top end of the bottom rod (2) is connected through the inner wall of the contraction groove (11). Two telescopic connecting rods (5) are movably connected to the inner wall of the bottom rod (2). The two telescopic connecting rods (5) include connecting rod one (51) and connecting rod two (52). The bottom end of connecting rod one (51) is movably connected to the inner wall of the bottom rod (2). The connecting rod two (52) is movably connected to the inner wall of connecting rod one (51). A handle (6) is fixedly connected to the top of 52). A control button (61) is installed on the outer wall of one end of the handle (6). A storage battery (63) is installed on the inner wall of the handle (6). The control button (61) is electrically connected to the storage battery (63). Limiting slots (7) are opened on the inner walls of the bottom rod (2) and the first connecting rod (51). Electromagnetic push rods (53) are installed on the bottom inner walls of the first connecting rod (51) and the second connecting rod (52). One end of the telescopic rod of the electromagnetic push rod (53) is engaged with the inner wall of the limiting slot (7).

2. The two-section built-in automatic button multi-functional pull rod according to claim 1, characterized in that: The bottom end of the bottom rod (2) is fixedly connected to a bottom plate (3). The outer wall of the bottom plate (3) is provided with an installation groove (31), and the inner wall of the installation groove (31) is provided with a fixing hole (32).

3. The two-section built-in automatic button multi-functional pull rod according to claim 1, characterized in that: The bottom surface of the fixed base (1) is fixedly connected to a fixed sleeve plate (4), and the outer wall of the fixed sleeve plate (4) is provided with heat dissipation holes (41).

4. The two-section built-in automatic button multi-functional pull rod according to claim 3, characterized in that: The inner wall of the shrinkage groove (11) is provided with a placement opening (13), and the interior of the placement opening (13) is connected to the interior of the fixing sleeve (4).

5. The two-section built-in automatic button multi-functional pull rod according to claim 4, characterized in that: A sealing gasket (14) is fixedly connected to the inner wall of the placement port (13), and a rubber sleeve (12) is provided on one side of the placement port (13).

6. The two-section built-in automatic button multi-functional pull rod according to claim 5, characterized in that: The rubber sleeve (12) is fixedly connected to the top surface of the bottom rod (2), and the inner wall of the rubber sleeve (12) is movably connected to the outer wall of the two telescopic connecting rods (5).

7. The two-section built-in automatic button multi-functional pull rod according to claim 1, characterized in that: A wiring panel (15) is installed on the top surface of the mounting base (1).

8. The two-section built-in automatic button multi-functional pull rod according to claim 7, characterized in that: A control circuit board (62) is fixedly installed on the inner wall of the grip (6), and the control circuit board (62) is electrically connected to the battery (63).

9. The two-section built-in automatic button multi-functional pull rod according to claim 8, characterized in that: The battery (63) is electrically connected to the electromagnetic push rod (53).

10. The two-section built-in automatic button multi-functional pull rod according to claim 9, characterized in that: The wiring panel (15) is electrically connected to the control circuit board (62).