Telescopic rod structure and an electric suitcase

Abstract

The present application relates to an electric suitcase, and specifically relates to a telescopic rod structure and an electric suitcase. The telescopic rod structure comprises a pull rod sleeve, a pull rod, and a positioning mechanism, wherein the positioning mechanism comprises a limiting rod, a positioning member connected to the lower end of the limiting rod, and a sliding block located below the positioning member and capable of moving transversely; the end portion of the sliding block is provided with a limiting end head; the top end of the limiting rod is provided with a control component; when a user presses the control component, the control component drives the limiting rod to drive the positioning member to move downwards to abut against the sliding block, and drives the sliding block to retract inwards, so as to release the relative fixation between the pull rod and the pull rod sleeve, and at this time, the pull rod can slide up and down; when the user releases the control component, the limiting rod and the positioning member are reset upwards to cause the sliding block to slide outwards so that the limiting end head abuts against the inner wall of the pull rod sleeve; and when the pull rod is stretched into position and a limiting hole is aligned with the limiting end head, the limiting end head passes through the limiting hole and achieves a limiting effect. The present application can not only ensure the smooth extension and retraction of the pull rod, but also improve the reliability of electrical connection.

Description

Telescopic rod structure and electric luggage

[0001] The present disclosure is based on and claims priority to Chinese Patent Application No. 202421722767.0, filed on July 20, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to electric luggage, in particular to a telescopic rod structure and electric luggage. BACKGROUND

[0003] The electric trolley case is a trolley case that realizes automatic walking by adding an electric power-assisted device. The relevant structure is disclosed in Chinese Utility Model Publication No. CN209346219U, entitled "Double-wheel electric trolley case". The document discloses: "a double-wheel electric trolley case, at least comprising: a telescopic rod, a trolley case body, an electric control chip, and two wheels arranged on the back of the trolley case body; a control handle with a control switch is arranged above the telescopic rod; the electric control chip comprises: a central control module for main control, a state monitoring module for detecting the state of the trolley case, a display module arranged above the trolley case for displaying the state, a motor drive module for controlling the motor, a state control module for accepting the signal of the motor drive module to control the trolley case, and a power module for supplying power to the above modules". The control handle is arranged at the upper end of the telescopic rod, and the control handle and the main control need to be connected by wires. However, since the telescopic rod is a telescopic component, when the wires are arranged inside, the wires cannot be telescopic, which is easy to interfere with the position and cause friction between the wires and the telescopic rod. This not only affects the telescopic smoothness of the telescopic rod, but also causes the wires to wear out, resulting in a relatively low service life.

[0004] In addition, the telescopic rod structure applied to the electric trolley case in the prior art has no connection relationship between the limiting rod and the positioning member, and a guide structure for moving the limiting rod up and down needs to be arranged in the telescopic rod, which makes the structure complex and increases the cost. SUMMARY

[0005] To solve at least one technical problem in the background art, the present application provides a telescopic rod structure and electric luggage.

[0006] The present application adopts the following technical solutions.

[0007] The present application provides a telescopic rod structure, comprising a telescopic rod sleeve, a telescopic rod sliding up and down in the telescopic rod sleeve, and a positioning mechanism for fixing or unlocking the telescopic rod relative to the telescopic rod sleeve.

[0008] The positioning mechanism comprises a limiting rod arranged in the pull rod, a positioning piece connected to the lower end of the limiting rod, and a slider arranged below the positioning piece and capable of elastically sliding laterally, the end of the slider is provided with a limiting end, the limiting end penetrates the side wall of the pull rod, and at least two limiting holes are arranged on the pull rod sleeve for the limiting end to penetrate.

[0009] The top end of the limiting rod is provided with a control component, operating the control component drives the limiting rod to drive the positioning piece to move downward and abut against the slider, drives the slider to retract inward, and unlocks the relative fixation of the pull rod and the pull rod sleeve; the limiting rod and the positioning piece are reset upward to make the slider slide outward so that the limiting end penetrates the limiting hole, and the pull rod and the pull rod sleeve are relatively fixed.

[0010] Further, the lower end of the pull rod is fixed with a support, the slider laterally slides in the support, and the limiting end penetrates the side wall of the support and then penetrates the side wall of the pull rod.

[0011] Further, the positioning piece is a wedge-shaped tongue, the top of the slider is provided with a wedge-shaped notch, the wedge-shaped tongue is aligned with the wedge-shaped notch in an up-down manner, and the inclined surfaces of the wedge-shaped tongue and the wedge-shaped notch are arranged oppositely, the limiting rod and the wedge-shaped tongue are driven downward by the control component, the inclined surface of the wedge-shaped tongue contacts the inclined surface of the wedge-shaped notch, and the slider is driven to retract into the support.

[0012] Further, a spring is arranged in the support, and the spring elastically abuts against one end of the slider away from the limiting end.

[0013] Further, when the limiting end penetrates the limiting hole, the spring is in a compressed state or a natural state.

[0014] Further, two limiting holes are arranged on the pull rod sleeve in an up-down interval.

[0015] Further, a handle is further arranged on the top of the pull rod, and the control component is arranged on the handle.

[0016] Further, the control component is an elastic button, and the elastic button protrudes from the upper end surface of the handle.

[0017] The application also provides an electric luggage comprising the telescopic rod structure.

[0018] The telescopic rod structure disclosed in the application comprises a pull rod sleeve, a pull rod and a positioning mechanism, wherein the positioning mechanism comprises a limiting rod, a positioning piece connected to the lower end of the limiting rod and a slider capable of moving laterally below the positioning piece, the end of the slider is provided with a limiting end, the top end of the limiting rod is provided with a control component, when a user presses the control component, the control component drives the limiting rod to drive the positioning piece to move downward and abut against the slider, and drives the slider to retract inward, thereby releasing the relative fixation of the pull rod and the pull rod sleeve, at this time, the pull rod can slide up and down; when the user releases the pressing component, the limiting rod and the positioning piece are reset upward to make the slider slide outward, so that the limiting end abuts against the inner wall of the pull rod sleeve, when the pull rod is stretched to the position and the limiting hole is aligned with the limiting end, the limiting end passes through the limiting hole and achieves the limiting effect.

[0019] The limiting rod and the positioning piece are directly connected in the application, so that they move synchronously up and down, the positioning piece is inserted into the through hole of the support to move up and down, and then the limiting rod also moves up and down, so that the guiding structure for the movement of the limiting rod is not needed, and the overall structure is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Fig. 1 is an exploded view of the pull rod sleeve and the pull rod;

[0022] Fig. 2 is an exploded view of the internal structure of the pull rod;

[0023] Fig. 3 is an internal structure view of the pull rod sleeve;

[0024] Fig. 4 is a front and back contrast view of the pull rod sleeve and the pull rod before and after extension;

[0025] Fig. 5 is a sectional view of the pull rod sleeve, the pull rod and the handle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] The present application will be described in detail below with reference to Figs. 1 to 5 and specific embodiments.

[0028] The application discloses a steering signal transmission rail mechanism and telescopic rod structure for an electric suitcase, which is shown in combination with figures 1 to 5 and comprises a pull rod sleeve 1, a pull rod 2 and a handle 3. The pull rod 2 is inserted into the pull rod sleeve 1 and is in sliding fit with the pull rod sleeve 1. The handle 3 is fixed to the upper end of the pull rod 2. The handle 3 is internally provided with a steering control plate 30. The handle 3 is externally provided with a steering control device 31 which is electrically connected with the steering control plate 30. The outer side wall of the pull rod 2 is fixed with a probe plate 4. The probe plate 4 is arranged at the lower end of the pull rod 2. The probe plate 4 is externally provided with two probes 40 which are electrically connected with the steering control plate 30. The inner side wall of the pull rod sleeve 1 is fixed with a strip-shaped rail 5. The strip-shaped rail 5 extends along the length direction of the pull rod sleeve 1. The strip-shaped rail 5 is externally provided with two electric contact rails which extend along the length direction of the strip-shaped rail 5. The probes 40 correspond to the electric contact rails one by one and abut against each other. The electric contact rails are electrically connected with the main control plate of the electric suitcase.

[0029] In the structure, the handle 3 is fixed to the upper end of the pull rod 2. The lower end of the pull rod 2 is inserted into the pull rod sleeve 1 and is in sliding fit with the pull rod sleeve 1, so that the basic mechanism of the telescopic pull rod is realized. On the basis, the inner side wall of the pull rod sleeve 1 is fixed with the strip-shaped rail 5. The two electric contact rails on the strip-shaped rail 5 are electrically connected with the main control plate of the electric suitcase. Correspondingly, the outer side wall of the pull rod 2 is fixed with the probe plate 4. The two probes 40 on the probe plate 4 abut against the two electric contact rails respectively. Since the two probes 40 are electrically connected with the steering control plate 30, the electric connection channel is formed between the steering control plate 30 and the main control plate of the electric suitcase. The user can send the steering control signal to the main control plate by controlling the steering control device 31. Since the strip-shaped rail 5 extends along the length direction of the pull rod sleeve 1, when the user holds the handle 3 and pulls the pull rod 2, the two probes 40 can abut against the two electric contact rails in real time. Compared with the connection mode of the wire in the prior art, the application can avoid the position interference between the too long wire and the pull rod 2. The application can guarantee the smooth telescopic pull rod and can make the electric connection reliability higher, so that the application requirement is better met.

[0030] In the embodiment, the wire is arranged in the pull rod 2 and is electrically connected between the two probes 40 and the steering control plate 30. The wire in the pull rod 2 is not affected by the telescopic pull rod 2 and is only used for connecting the two probes 40 and the steering control plate 30.

[0031] In order to make the outer surface of the pull rod 2 flat, the probe plate 4 is preferably hidden in the embodiment. Please refer to figure 1. The outer side wall of the pull rod 2 is provided with a first accommodating groove 20. The probe plate 4 is fixed in the first accommodating groove 20.

[0032] As shown in FIG. 3, in order to avoid the protrusion of the strip-shaped guide rail 5, a second accommodating groove 10 is formed in the inner side wall of the pull rod sleeve 1, and the strip-shaped guide rail 5 is embedded in the second accommodating groove 10. In practical application, two electric contact rails are longitudinally arranged at the upper and lower ends of the strip-shaped guide rail 5. The electric contact rails can be copper plating on the strip-shaped guide rail 5 or metal conductive strips embedded in the strip-shaped guide rail 5.

[0033] In order to realize the limiting and clamping function between the pull rod 2 and the pull rod sleeve 1, the telescopic rod structure further comprises a positioning mechanism for fixing or unlocking the pull rod 2 relative to the pull rod sleeve 1. The positioning mechanism comprises a limiting rod 33 arranged in the pull rod, a positioning piece (i.e. a wedge-shaped tongue 34) connected to the lower end of the limiting rod 33, and a sliding block 22 arranged below the positioning piece and capable of elastically sliding laterally. The end of the sliding block 22 is provided with a limiting end 23, the limiting end 23 penetrates through the side wall of the pull rod 2, and the pull rod sleeve 1 is provided with at least two limiting holes 11 through which the limiting end 23 penetrates.

[0034] The top end of the limiting rod 33 is provided with a control component. Operating the control component drives the limiting rod 33 to drive the positioning piece to move downward and abut against the sliding block 22, drives the sliding block 22 to retract inward, and unlocks the relative fixation of the pull rod 2 and the pull rod sleeve 1. The upward reset of the limiting rod 33 and the positioning piece drives the sliding block 22 to slide outward so that the limiting end 23 penetrates through the limiting hole 11, and the pull rod 2 and the pull rod sleeve 2 are relatively fixed.

[0035] The control component is preferably an elastic button 32, and the elastic button 32 is arranged at the top of the handle 3. The lower end of the elastic button 32 is connected to the limiting rod 33. The lower end of the pull rod 2 is fixed with a support 21. The support 21 is provided with a sliding block 22 capable of elastically sliding laterally. The end of the sliding block 22 is provided with a limiting end 23. The limiting end 23 penetrates through the side wall of the pull rod 2 and the support 21 in sequence. The pull rod sleeve 1 is provided with a limiting hole 11 through which the limiting end 23 penetrates. The top of the sliding block 22 is provided with a wedge-shaped notch 24. The lower end of the limiting rod 33 is fixed with a wedge-shaped tongue 34. The wedge-shaped tongue 34 is aligned with the wedge-shaped notch 24 in upward and downward directions, and the inclined surfaces of the wedge-shaped tongue 34 and the wedge-shaped notch 24 are arranged opposite to each other. When the elastic button 32 is pressed, the limiting rod 33 and the wedge-shaped tongue 34 are driven to move downward. The inclined surface of the wedge-shaped tongue 34 contacts the inclined surface of the wedge-shaped notch 24, and drives the sliding block 22 to retract inward into the support 21, and releases the elastic button 32. The sliding block 22 elastically slides outward so that the limiting end 23 penetrates through the limiting hole 11.

[0036] It should be noted that the support 21 is provided with a sliding hole 211 extending upward and downward and matched with the positioning member, the positioning member moves upward and downward in the sliding hole 211 and abuts against the sliding block 22, since the positioning member in the application is directly fixed to the lower end of the limiting rod 33, the movement of the limiting rod 33 is limited by the movement of the positioning member, therefore, it is not necessary to set a guide mechanism for the limiting member 33, and the limiting member 33 can stably move in the pull rod 2 during the upward and downward movement of the positioning member along the sliding hole 211.

[0037] Further, the support 21 is provided with a spring 25, which elastically abuts against one end of the sliding block 22 away from the limiting end 23.

[0038] Further, when the limiting end passes through the limiting hole, the spring is in a compressed state or a natural state.

[0039] In the above mechanism, when the user does not press the elastic button 32, the spring 25 applies a transverse elastic force to the sliding block 22, driving the sliding block 22 to slide outward, and the limiting end 23 can abut against the inner side of the pull rod sleeve 1, when the pull rod 2 is stretched to the position and the limiting hole 11 is aligned with the limiting end 23, the limiting end 23 passes through the limiting hole 11 and reaches the limiting effect. When the user presses the elastic button 32, the wedge-shaped tongue 34 drives the sliding block 22 to slide inward by cooperating with the wedge-shaped notch 24, and the limiting end 23 exits from the limiting hole 11, at this time, the pull rod 2 can slide up and down. Based on the above principle, the application realizes the telescopic limiting function of the pull rod 2 by a simple and reliable assembly.

[0040] In practical application, the pull rod sleeve 1 is provided with two limiting holes 11 upward and downward, so that the pull rod 2 can be locked at two different length positions, meeting the purpose of contraction and elongation of the pull rod.

[0041] The application also provides an electric luggage including the telescopic rod structure of any one of the above, the electric luggage provided by the application adopts all the technical solutions of all the embodiments of the telescopic rod structure, therefore, at least has all the beneficial effects brought by the technical solutions of the embodiments of the telescopic rod structure, which will not be described here.

[0042] The application is further described by means of specific embodiments above, but it should be understood that the specific description here should not be understood as the limitation of the essence and scope of the application, and various modifications of the above embodiments made by ordinary skilled in the art after reading the specification all belong to the scope protected by the application.

Claims

1. A telescopic pole structure, characterized in that, The telescopic rod structure comprises a telescopic rod sleeve, a telescopic rod slidingly arranged in the telescopic rod sleeve, and a positioning mechanism for fixing or unlocking the telescopic rod relative to the telescopic rod sleeve. The positioning mechanism comprises a limiting rod arranged in the telescopic rod, a positioning piece connected to a lower end of the limiting rod, and a slider arranged below the positioning piece and capable of elastically sliding laterally, an end of the slider being provided with a limiting end, the limiting end penetrating a side wall of the telescopic rod, and the telescopic rod sleeve being provided with at least two limiting holes through which the limiting end penetrates. A control component is arranged at a top end of the limiting rod, and operation of the control component drives the limiting rod and the positioning piece to move downward and abut against the slider, drives the slider to retract inward, and unlocks the relative fixation of the telescopic rod and the telescopic rod sleeve; the limiting rod and the positioning piece are reset upward to drive the slider to slide outward so that the limiting end penetrates the limiting hole and the telescopic rod and the telescopic rod sleeve are relatively fixed.

2. The telescopic pole structure of claim 1, wherein, A support is fixed to a lower end of the telescopic rod, the slider laterally slides in the support, and the limiting end penetrates the side wall of the support and then penetrates the side wall of the telescopic rod.

3. The telescopic pole structure of claim 2, wherein, The positioning piece is a wedge-shaped tongue, a top of the slider is provided with a wedge-shaped notch, the wedge-shaped tongue is aligned with the wedge-shaped notch in an up-down direction, and inclined surfaces of the wedge-shaped tongue and the wedge-shaped notch are arranged oppositely, the limiting rod and the wedge-shaped tongue are driven downward by the control component, the inclined surface of the wedge-shaped tongue contacts the inclined surface of the wedge-shaped notch, and the slider is driven to retract inward into the support.

4. The telescopic pole structure of claim 2, wherein, A spring is arranged in the support, and the spring elastically abuts against an end of the slider away from the limiting end.

5. The telescopic pole structure of claim 4, wherein, When the limiting end penetrates the limiting hole, the spring is in a compressed state or a natural state.

6. The telescopic pole structure of claim 1, wherein, The telescopic rod sleeve is provided with two limiting holes spaced apart in an up-down direction.

7. The telescopic pole structure of claim 1, wherein, A handle is arranged on a top of the telescopic rod, and the control component is arranged on the handle.

8. The telescopic pole structure of claim 7, wherein, The control component is an elastic button, and the elastic button protrudes from an upper end surface of the handle.

9. An electrically powered luggage case characterized by, The telescopic rod structure comprises the telescopic rod structure according to any one of claims 1-8.

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