Luggage case with pull rod steering function

Abstract

The utility model relates to the technical field of luggage cases, in particular to a luggage case with a pull rod steering function, which comprises a case body, a pull rod module capable of stretching out and drawing back is arranged at the top of the case body, the pull rod module comprises a movable cavity formed in the case body, and a steering connection sleeve connected with a steering wheel module is arranged at the bottom of the movable cavity. The top of the steering connection sleeve is connected with a transfer connection shaft, the top of the movable cavity is provided with a top movable hole, the top movable hole is provided with a first pull rod sleeve capable of moving axially and a second pull rod sleeve movably arranged in the first pull rod sleeve in a penetrating mode, and the second pull rod sleeve rotationally drives the transfer connection shaft to rotate; when the second pull rod sleeve rotates, the second pull rod sleeve can be matched with the transfer connection shaft in the movable cavity, the transfer connection shaft rotates synchronously, the bottom of the transfer connection shaft is connected with the steering connection sleeve, so that the steering wheel module can be driven to realize steering, and the movement direction of the luggage case can be changed; steering driving is achieved, and steering failure is prevented.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a luggage bag with a pull rod steering function. Background Technology

[0002] With the advancement of science and technology, the functionality of suitcases has become increasingly sophisticated to meet people's travel needs. Among them, electric suitcases are an improvement on traditional suitcases, enabling them to be ridden, thus reducing the burden of carrying luggage. Electric suitcases not only have the storage function of ordinary suitcases, but also have a riding function. Driven by electricity, they save users' physical strength and bring a new user experience to people's travels.

[0003] Existing luggage handles require the handle to be pulled up to a specified height to control the direction of movement. When the handle is extended or retracted, the direction of movement cannot be controlled, resulting in low control sensitivity. Utility Model Content

[0004] The purpose of this invention is to provide a luggage bag with a pull rod steering function to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A suitcase with a swivel handle includes a suitcase body, a support base mounted on the bottom of the suitcase body, a rolling support assembly mounted on the support base, the rolling support assembly including a drive wheel module, a support wheel module and a steering wheel module, a telescopic handle module on the top of the suitcase body, the handle module including a movable cavity formed in the suitcase body, a steering coupling sleeve connected to the steering wheel module at the bottom of the movable cavity, a transfer coupling shaft connected to the top of the steering coupling sleeve, a top movable hole at the top of the movable cavity, a first handle sleeve axially movable in the top movable hole, and a second handle sleeve movably passing through the first handle sleeve, the second handle sleeve being coaxially aligned with the transfer coupling shaft, the second handle sleeve being connected to the transfer coupling shaft, and the second handle sleeve rotatably driving the transfer coupling shaft to rotate.

[0007] Furthermore: a limit cover is provided at the top of the first pull rod sleeve, and a stop sleeve that cooperates with the stop of the limit cover is installed on the second pull rod sleeve.

[0008] Furthermore, a stop block is provided inside the movable cavity to prevent the first pull rod sleeve from falling into the movable cavity from the top movable hole.

[0009] Furthermore: the outer ring wall of the transfer connector shaft is formed with an outer guide protrusion along the axial direction, and the inner wall of the second tie rod sleeve is formed with an inner guide groove along the axial direction, with the outer guide protrusion and the inner guide groove axially aligned.

[0010] Furthermore: the bottom of the transfer shaft is inserted into the steering sleeve, the steering sleeve is formed with a radially concave bottom locking block, and the outer wall of the transfer shaft is formed with a concave top locking groove, the top locking groove and the bottom locking block are coaxially aligned.

[0011] Furthermore: the bottom locking block is formed with multiple first connecting holes, and the top locking groove is formed with multiple second connecting holes that mate with the first connecting holes.

[0012] Furthermore: a top pull rod is fitted onto the top of the second pull rod sleeve, and a top connecting hole is formed in the middle of the top pull rod for the second pull rod sleeve to be inserted.

[0013] Furthermore: the top of the box is formed with a concave receiving groove, and an arc-shaped ring for supporting the top tie rod is installed in the concave receiving groove.

[0014] Furthermore: the support base has a built-in power supply battery, which is connected to the drive wheel module via a signal connection.

[0015] Furthermore, a charging port for discharging is also provided on the top of the enclosure, which is connected to the power supply battery via a signal connection.

[0016] The beneficial effects of this utility model are as follows: the first pull rod sleeve in the pull rod module can slide and cooperate with the second pull rod sleeve to achieve extension, and can also retract into the movable cavity for storage and concealment; when the second pull rod sleeve rotates, it can cooperate with the transfer connecting shaft in the movable cavity, and the transfer connecting shaft rotates synchronously. Since the bottom of the transfer connecting shaft is connected to the steering connecting sleeve, it can drive the steering wheel module to achieve steering, and the movement direction of the luggage bag can change; regardless of whether the second pull rod sleeve is in the extension or retraction state, it can still rotate to drive the steering, achieve steering drive, and prevent steering failure. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a suitcase.

[0018] Figure 2 This is a cross-sectional structural diagram of a suitcase.

[0019] Figure 3 This is a schematic diagram of the tie rod module.

[0020] Figure 4 This is a cross-sectional schematic diagram of the connection between the steering coupling sleeve and the transfer coupling shaft.

[0021] The reference numerals in the figures include:

[0022] 1-Box,

[0023] 11-Support wheel module, 12-Steering wheel module, 13-Drive wheel module, 14-Support base,

[0024] 15-Moving cavity, 16-Top moving hole, 17-Concave receiving groove, 18-Arc-shaped ring, 19-Charging port,

[0025] 2-Pull rod module

[0026] 21-First pull rod sleeve, 22-Second pull rod sleeve, 23-Top pull rod, 24-Limit cover, 25-Stop sleeve, 26-Stop block, 27-Transfer connecting shaft, 28-Outer guide protrusion, 29-Inner guide groove

[0027] 3-Swivel coupling sleeve,

[0028] 31-Bottom locking block, 32-Top locking slot, 33-First connecting hole, 34-Second connecting hole

[0029] 35-Steering mechanism, 36-Start button, 37-Toggle button, 38-Power supply battery. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings.

[0031] like Figure 1-4 As shown, a suitcase with a swivel handle includes a suitcase body 1. A support base 14 is installed at the bottom of the suitcase body 1. A rolling support assembly is installed on the support base 14. The rolling support assembly includes a drive wheel module 13, a support wheel module 11, and a steering wheel module 12. A telescopic pull rod module 2 is provided at the top of the suitcase body 1. The pull rod module 2 includes a movable cavity 15 formed inside the suitcase body 1. A steering coupling sleeve 3 connected to the steering wheel module 12 is provided at the bottom of the movable cavity 15. A transfer coupling shaft 27 is connected to the top of the steering coupling sleeve 3. A top movable hole 16 is provided at the top of the movable cavity 15. A first pull rod sleeve 21 that can move axially is provided in the top movable hole 16, and a second pull rod sleeve 22 that moves through the first pull rod sleeve 21 is provided. The second pull rod sleeve 22 is coaxially aligned with the transfer coupling shaft 27 and is connected to the transfer coupling shaft 27. The second pull rod sleeve 22 rotatably drives the transfer coupling shaft 27 to rotate.

[0032] The first pull rod sleeve 21 in the pull rod module 2 can slide with the second pull rod sleeve 22 to extend, or it can retract into the movable cavity 15 for storage and concealment. When the second pull rod sleeve 22 rotates, it can cooperate with the transfer shaft 27 in the movable cavity 15. The transfer shaft 27 rotates synchronously. Since the bottom of the transfer shaft 27 is connected to the steering sleeve 3, it can drive the steering wheel module 12 to turn, and the direction of movement of the luggage can change. Regardless of whether the second pull rod sleeve 22 is in the extended or retracted state, it can still rotate to drive the steering, realize steering drive, and prevent steering failure.

[0033] Specifically, the first pull rod sleeve 21 is provided with a limit cover 24 at its top, and the second pull rod sleeve 22 is equipped with a stop sleeve 25 that cooperates with the limit cover 24. When the first pull rod sleeve 21 and the second pull rod sleeve 22 are in sliding contact, for example, when the second pull rod sleeve 22 is pulled out to its maximum stroke, the stop sleeve 25 and the limit cover 24 can prevent the second pull rod sleeve 22 from falling out of the first pull rod sleeve 21 and maintain the connection between the first pull rod sleeve 21 and the second pull rod sleeve 22.

[0034] Furthermore, a stop block 26 is provided inside the movable cavity 15 to prevent the first pull rod sleeve 21 from falling into the movable cavity 15 from the top movable hole 16; when retracting, the first pull rod sleeve 21 retracts, and when the top of the first pull rod sleeve 21 is close to the top movable hole 16, the stop block 26 supports the first pull rod sleeve 21 to prevent the first pull rod sleeve 21 from continuing to retract and to prevent the first pull rod sleeve 21 from falling into the movable cavity 15.

[0035] Specifically, the outer ring wall of the transfer shaft 27 is formed with an outer guide protrusion 28 along the axial direction, and the inner wall of the second pull rod sleeve 22 is formed with an inner guide groove 29 along the axial direction. The outer guide protrusion 28 and the inner guide groove 29 are axially aligned. When the second pull rod sleeve 22 is pulled outward to its maximum stroke, the transfer shaft 27 is always inserted into the second pull rod sleeve 22. The connection is achieved through the cooperation of the outer guide protrusion 28 and the inner guide groove 29. When the second pull rod sleeve 22 rotates, the transfer shaft 27 rotates synchronously. Even if the second pull rod sleeve 22 is at different heights or different extension and retraction positions, the rotation of the transfer shaft 27 can still be controlled.

[0036] Furthermore, the bottom of the transfer shaft 27 is inserted into the steering sleeve 3. The steering sleeve 3 is formed with a radially concave bottom locking block 31, and the outer wall of the transfer shaft 27 is formed with a concave top locking groove 32. The top locking groove 32 and the bottom locking block 31 are coaxially aligned. When the transfer shaft 27 is connected to the steering sleeve 3, the bottom locking block 31 and the top locking groove 32 cooperate to achieve locking. When the transfer shaft 27 rotates, the steering sleeve 3 rotates synchronously to drive the steering wheel module 12 to change direction by lateral rotation, thereby achieving steering control.

[0037] Preferably, the bottom locking block 31 is formed with multiple first connecting holes 33, and the top locking groove 32 is formed with multiple second connecting holes 34 that mate with the first connecting holes 33. When the transfer connecting shaft 27 is connected to the steering connecting sleeve 3, the bottom locking block 31 and the top locking groove 32 mate to achieve locking. After locking, the first connecting holes 33 and the second connecting holes 34 are coaxially aligned and connected by screws. This ensures that the transfer connecting shaft 27 and the steering connecting sleeve 3 remain connected, and when the second pull rod sleeve 22 moves in extension and retraction, it will not simultaneously drive the transfer connecting shaft 27 to move up and down synchronously, thus maintaining the stability of the connection.

[0038] It should be noted that a steering mechanism 35 is provided inside the support base 14. The steering mechanism 35 typically includes a steering arm, and the steering coupling sleeve 3 is rotatably connected to the middle end of the steering arm. The steering arm is similar to a parallelogram structure. When the steering coupling sleeve 3 rotates, the steering arm will shift left and right as a whole. The steering arm can drive two steering wheels rotatably mounted at the bottom of the support base 14 to rotate horizontally, thereby achieving steering. The aforementioned steering mechanism 35 is widely used in luggage and bags and is a common existing technology. Those skilled in the art can directly derive it from the existing technology without any creative effort. Therefore, the specific structure will not be described in detail here.

[0039] The support wheel module 11 includes auxiliary support wheels respectively disposed on both sides of the rear of the support base 14, the steering wheel module 12 includes steering support wheels respectively disposed on both sides of the front of the support base 14, and the drive wheel module 13 is disposed between the two steering support wheels.

[0040] Furthermore, a top pull rod 23 is fitted onto the top of the second pull rod sleeve 22, and a top connecting hole is formed in the middle of the top pull rod 23 for the second pull rod sleeve 22 to be inserted. The top pull rod 23 can be gripped by people. On the one hand, swinging the top pull rod 23 can drive the second pull rod sleeve 22 to rotate. On the other hand, when retracting, the top pull rod 23 will cooperate with the stop of the top movable hole 16 for limiting the position.

[0041] Furthermore, the top of the housing 1 is formed with a concave receiving groove 17, and an arc-shaped ring 18 is installed in the receiving groove to support the top pull rod 23. When the pull rod module 2 retracts, the top pull rod 23 retracts exactly into the concave receiving groove 17. The arc-shaped ring 18 supports the top pull rod 23, and there is a gap between the top pull rod 23 and the concave receiving groove 17, which makes it more convenient to pull out and use.

[0042] In one embodiment, the support base 14 has a built-in power supply battery 38, which is signal-connected to the drive wheel module 13. The power supply battery 38 has wires leading out to supply power to the drive wheel module 13, enabling the drive wheel module 13 to rotate actively.

[0043] The top of the housing 1 is also provided with a charging port 19 for discharging. The charging port 19 is connected to the power supply battery 38. The power supply battery 38 leads out a wire, which is connected to the charging port 19, so that it can discharge to the outside and charge electronic devices such as mobile phones.

[0044] It should be noted that, in one embodiment, the top pull rod 23 houses a controller and a top battery that powers the controller. The controller is a top circuit board, and the support base 14 also has a bottom circuit board. The power supply battery 38 and the drive wheel module 13 are electrically connected to the bottom circuit board. The top circuit board and the bottom circuit board are connected via a wireless communication module to achieve wireless control. The top pull rod 23 is equipped with a start button 36 and a toggle button connected to the top circuit board. Pressing the start button 36 controls the start of the drive wheel module 13, pushing the toggle button forward controls the drive wheel module 13 to move forward, and pushing the toggle button backward controls the drive wheel module 13 to move backward, thereby controlling the forward and backward movement of the suitcase.

[0045] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0046] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A suitcase with a swivel handle, comprising a suitcase body, a support base mounted on the bottom of the suitcase body, and a rolling support assembly mounted on the support base, the rolling support assembly comprising a drive wheel module, a support wheel module, and a steering wheel module, characterized in that: The top of the housing is provided with a telescopic pull rod module. The pull rod module includes a movable cavity formed in the housing. The bottom of the movable cavity is provided with a steering coupling sleeve connected to the steering wheel module. The top of the steering coupling sleeve is connected to a transfer coupling shaft. The top of the movable cavity is provided with a top movable hole. The top movable hole is provided with a first pull rod sleeve that can move axially, and a second pull rod sleeve that moves through the first pull rod sleeve. The second pull rod sleeve is coaxially aligned with the transfer coupling shaft and connected to the transfer coupling shaft. The second pull rod sleeve rotatably drives the transfer coupling shaft to rotate.

2. A suitcase with a swivel handle and steering function according to claim 1, characterized in that: The first tie rod sleeve is provided with a limit cover at the top, and the second tie rod sleeve is equipped with a stop sleeve that cooperates with the stop of the limit cover.

3. A luggage bag with a swivel handle and steering function according to claim 1, characterized in that: The movable cavity is equipped with a stop block to prevent the first pull rod sleeve from falling into the movable cavity from the top movable hole.

4. A luggage bag with a swivel handle and steering function according to claim 1, characterized in that: The outer ring wall of the transfer connector shaft is formed with an outer guide protrusion along the axial direction, and the inner wall of the second tie rod sleeve is formed with an inner guide groove along the axial direction. The outer guide protrusion and the inner guide groove are axially aligned.

5. A luggage bag with a pull rod and steering function according to claim 4, characterized in that: The bottom of the transfer shaft is inserted into the steering sleeve. The steering sleeve is formed with a radially concave bottom locking block. The outer wall of the transfer shaft is formed with a concave top locking groove. The top locking groove is coaxially aligned with the bottom locking block.

6. A luggage bag with a pull rod and steering function according to claim 5, characterized in that: The bottom locking block is formed with multiple first connecting holes, and the top locking groove is formed with multiple second connecting holes that mate with the first connecting holes.

7. A luggage bag with a swivel handle and steering function according to claim 1, characterized in that: The second pull rod sleeve has a top pull rod fitted on top, and the top pull rod has a top connecting hole formed in the middle for the second pull rod sleeve to be inserted.

8. A luggage bag with a swivel handle and steering function according to claim 7, characterized in that: The top of the box is formed with a concave receiving groove, and an arc-shaped ring for supporting the top tie rod is installed in the concave receiving groove.

9. A luggage bag with a swivel handle and steering function according to claim 1, characterized in that: The support base has a built-in power supply battery, which is connected to the drive wheel module via a signal connection.

10. A luggage bag with a pull rod steering function according to claim 6, characterized in that: The top of the enclosure is also equipped with a charging port for discharging, which is connected to the power supply battery via a signal connection.

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