Steering signal transmission guide rail mechanism for electric luggage case

Abstract

The steering signal transmission guide rail mechanism comprises a pull rod sleeve, a pull rod and a handle, the pull rod is inserted into the pull rod sleeve and matched with the pull rod sleeve in an up-down sliding mode, the handle is fixed to the upper end of the pull rod, a steering control panel is arranged in the handle, and a steering control device electrically connected with the steering control panel is arranged on the handle. A probe plate is fixed to the outer side wall of the pull rod and arranged at the lower end of the pull rod, two probes electrically connected with the steering control plate are arranged on the probe plate, a strip-shaped guide rail is fixed to the inner side wall of the pull rod sleeve and extends in the length direction of the pull rod sleeve, and two electric contact rails are arranged on the strip-shaped guide rail. The electric contact rails extend in the length direction of the strip-shaped guide rail, the probes and the electric contact rails are in one-to-one correspondence and abut against each other, and the electric contact rails are electrically connected with a main control board of the electric luggage case. According to the utility model, position interference between an overlong lead and the pull rod can be avoided, smooth stretching of the pull rod can be ensured, and the reliability of electric connection can be higher.

Description

Technical Field

[0001] The utility model relates to an electric luggage case, in particular to a turn signal transmission guide rail mechanism used for the electric luggage case. Background Art

[0002] An electric trolley case is a trolley case that realizes automatic walking by adding an electric power assist device. For the relevant structure, please refer to the Chinese utility model disclosure document with the announcement number CN209346219U and the name "Double-wheel electric trolley case", which records: "A double-wheel electric trolley case at least includes: a retractable pull rod, a trolley case body, an electric control chip and rollers arranged on both sides of the rear of the trolley case body; a control handle with a control switch is arranged above the retractable pull rod; the electric control chip includes: a central control module for main control, a status module for detecting the status of the trolley case A monitoring module, a display module for displaying the status arranged above the suitcase, a motor driving module for controlling the motor, a status control module for receiving signals from the motor driving module to control the suitcase, and a power supply module for supplying power to the above modules. The control handle is arranged at the upper end of the retractable rod, and the control handle and the main control need to be connected by a wire. However, since the rod is a retractable component, when the rod is arranged inside, the wire is not retractable and is prone to position interference and friction with the rod, which not only affects the smoothness of the extension and retraction of the rod, but also causes wear of the wire, resulting in a relatively short service life. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steering signal transmission guide rail mechanism for an electric luggage box, which can avoid interference between a wire and a pull rod, ensure smooth extension and retraction of the pull rod, and has higher electrical connection reliability, in view of the deficiencies in the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A steering signal transmission guide rail mechanism for an electric suitcase, comprising a pull rod sleeve, a pull rod and a handle, wherein the pull rod is inserted into the pull rod sleeve and the two slide together up and down, the handle is fixed to the upper end of the pull rod, a steering control plate is provided in the handle, a steering control device electrically connected to the steering control plate is provided on the handle, a probe plate is fixed to the outer wall of the pull rod, the probe plate is provided at the lower end of the pull rod, two probes electrically connected to the steering control plate are provided on the probe plate, a strip guide rail is fixed to the inner wall of the pull rod sleeve, the strip guide rail extends along the length direction of the pull rod sleeve, two electric contact rails are provided on the strip guide rail, the electric contact rails extend along the length direction of the strip guide rail, the probes correspond to the electric contact rails one by one and abut against each other, and the electric contact rails are electrically connected to the main control panel of the electric suitcase.

[0006] Preferably, a wire is passed through the pull rod, and the wire is electrically connected between the two probes and the steering control board.

[0007] Preferably, an outer side wall of the pull rod is provided with a first receiving groove, and the probe board is fixed in the first receiving groove.

[0008] Preferably, a second accommodating groove is formed on the inner side wall of the pull rod sleeve, and the strip guide rail is embedded in the second accommodating groove.

[0009] Preferably, an elastic button is provided on the top of the handle, and the lower end of the elastic button is connected to a limiting rod. A support is fixed to the lower end of the pull rod, and a slider that can slide elastically laterally is provided in the support. A limiting end is provided at the end of the slider, and the limiting end passes through the support and the side walls of the pull rod in sequence, and a limiting hole for the limiting end to pass through is provided on the pull rod sleeve. A wedge-shaped recess is provided on the top of the slider, and a wedge-shaped tongue is fixed to the lower end of the limiting rod. The wedge-shaped tongue is aligned with the wedge-shaped recess up and down and the inclined surfaces of the two are arranged opposite to each other. When the elastic button is pressed, the limiting rod and the wedge-shaped tongue are driven to move downward, and the inclined surface of the wedge-shaped tongue contacts the inclined surface of the wedge-shaped recess, and drives the slider to retract into the support. When the elastic button is released, the slider elastically slides outward to allow the limiting end to pass through the limiting hole.

[0010] Preferably, a spring is provided in the support, and the spring elastically abuts against an end of the sliding block away from the limiting end.

[0011] In the steering signal transmission guide rail mechanism for an electric luggage case disclosed in the utility model, the handle is fixed to the upper end of the pull rod, the lower end of the pull rod is inserted into the pull rod sleeve and the two slide together up and down, thereby realizing the basic mechanism of the telescopic pull rod. On this basis, the utility model fixes a strip guide rail on the inner side wall of the pull rod sleeve, and the two electric contact rails on the strip guide rail are electrically connected to the main control board of the electric luggage case. Correspondingly, a probe plate is fixed on the outer side wall of the pull rod, and the two probes on the probe plate are respectively kept in contact with the two electric contact rails. Since the two probes are electrically connected to the steering control The steering control panel is electrically connected to the main control panel of the electric suitcase, and the user can send a steering control signal to the main control panel by operating the steering control device. Since the strip guide rail extends along the length direction of the pull rod sleeve, when the user holds the handle and pulls the pull rod, the two probes can maintain contact with the two electrical contact rails in real time. Compared with the connection method using wires in the prior art, the utility model can avoid position interference between excessively long wires and the pull rod, which can not only ensure smooth extension and retraction of the pull rod, but also make the electrical connection more reliable, thereby better meeting application requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is an exploded view of the tie rod sleeve and the tie rod;

[0013] Figure 2 This is an exploded view of the internal structure of the tie rod;

[0014] Figure 3 The figure is the internal structure diagram of the pull rod sleeve;

[0015] Figure 4 This is a comparison view of the pull rod sleeve and the pull rod before and after extension;

[0016] Figure 5 It is a cross-sectional view of the pull rod sleeve, pull rod and handle. DETAILED DESCRIPTION

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0018] The utility model discloses a turn signal transmission guide rail mechanism for an electric luggage box, Figures 1 to 5As shown, it includes 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 the two are slidably matched up and down, the handle 3 is fixed to the upper end of the pull rod 2, a steering control board 30 is provided in the handle 3, and a steering control device 31 electrically connected to the steering control board 30 is provided on the handle 3, a probe plate 4 is fixed to the outer wall of the pull rod 2, the probe plate 4 is arranged at the lower end of the pull rod 2, and two probes 40 electrically connected to the steering control board 30 are provided on the probe plate 4, a strip guide rail 5 is fixed to the inner wall of the pull rod sleeve 1, the strip guide rail 5 extends along the length direction of the pull rod sleeve 1, two electric contact rails are provided on the strip guide rail 5, the electric contact rails extend along the length direction of the strip guide rail 5, the probes 40 correspond to the electric contact rails one by one and abut against each other, and the electric contact rails are electrically connected to the main control panel of the electric suitcase.

[0019] In the above structure, the handle 3 is fixed to the upper end of the pull rod 2, and the lower end of the pull rod 2 is inserted into the pull rod sleeve 1 and the two slide together up and down, thereby realizing the basic mechanism of the telescopic pull rod. On this basis, the utility model has a strip guide rail 5 fixed to the inner wall of the pull rod sleeve 1, and the two electric contact rails on the strip guide rail 5 are electrically connected to the main control panel of the electric suitcase. Correspondingly, a probe plate 4 is fixed to the outer wall of the pull rod 2, and the two probes 40 on the probe plate 4 are respectively kept in contact with the two electric contact rails. Since the two probes 40 are electrically connected to the steering control board 30, the steering An electrical connection path is formed between the control board 30 and the main control board of the electric suitcase. The user can send a steering control signal to the main control board by operating the steering control device 31. Because the strip guide 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 maintain contact with the two electrical contact rails in real time. Compared with the connection method using wires in the prior art, the utility model can avoid position interference between the excessively long wires and the pull rod 2, which can not only ensure smooth extension and retraction of the pull rod, but also make the electrical connection more reliable, thereby better meeting application requirements.

[0020] In this embodiment, a wire is inserted into the pull rod 2, and the wire is electrically connected between the two probes 40 and the steering control board 30. The wire in the pull rod 2 is not affected by the extension and contraction of the pull rod 2, and is only used to connect the two probes 40 and the steering control board 30.

[0021] In order to make the outer surface of the pull rod 2 smooth, the probe plate 4 is preferably hidden in this embodiment. Figure 1 The outer wall of the pull rod 2 is provided with a first receiving groove 20 , and the probe plate 4 is fixed in the first receiving groove 20 .

[0022] See also Figure 3 In order to prevent the strip guide rail 5 from protruding outward, in this embodiment, the inner wall of the pull rod sleeve 1 is provided with a second accommodating groove 10, and the strip guide rail 5 is embedded in the second accommodating groove 10. In practical applications, two electrical contact rails are longitudinally connected to the upper and lower ends of the strip guide rail 5, and the electrical contact rails can be copper-plated printed on the strip guide rail 5, or can be metal conductive strips embedded in the strip guide rail 5.

[0023] In order to realize the limiting engagement function between the pull rod 2 and the pull rod sleeve 1, in this embodiment, an elastic button 32 is provided on the top of the handle 3, and the lower end of the elastic button 32 is connected to a limiting rod 33. A support 21 is fixed to the lower end of the pull rod 2, and a slider 22 capable of laterally elastic sliding is provided in the support 21. A limiting end 23 is provided at the end of the slider 22, and the limiting end 23 passes through the support 21 and the side wall of the pull rod 2 in turn. A limiting hole 11 is provided on the pull rod sleeve 1 for the limiting end 23 to pass through, and the slider A wedge-shaped recess 24 is provided at the top of the limit rod 33, and a wedge-shaped tongue 34 is fixed to the lower end of the limit rod 33. The wedge-shaped tongue 34 is aligned with the wedge-shaped recess 24 up and down and the inclined surfaces of the two are arranged opposite to each other. When the elastic button 32 is pressed, the limit rod 33 and the wedge-shaped tongue 34 are driven to move downward, and the inclined surface of the wedge-shaped tongue 34 contacts the inclined surface of the wedge-shaped recess 24, and drives the slider 22 to retract into the support 21. When the elastic button 32 is released, the slider 22 elastically slides outward to allow the limit end 23 to pass through the limit hole 11.

[0024] Furthermore, a spring 25 is disposed in the support 21 , and the spring 25 elastically abuts against an end of the slider 22 away from the limiting end 23 .

[0025] In the above mechanism, when the user does not press the elastic button 32, the spring 25 applies a lateral elastic force to the slider 22, driving the slider 22 to slide outward, and the limit end 23 can abut against the inner avoidance of the pull rod sleeve 1. When the pull rod 2 is stretched to the right position and the limit hole 11 is aligned with the limit end 23, the limit end 23 passes through the limit hole 11 and achieves the limit effect. When the user presses the elastic button 32, the wedge-shaped tongue 34 drives the slider 22 to slide inward by cooperating with the wedge-shaped recess 24, and the limit end 23 withdraws from the limit hole 11. At this time, the pull rod 2 can slide up and down. Based on the above principle, the utility model realizes the telescopic limit function of the pull rod 2 with simple and reliable components.

[0026] In practical applications, the pull rod sleeve 1 is provided with two upper and lower limiting holes 11 .

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turn signal transmission guide rail mechanism for an electric luggage compartment, characterized in that: The invention comprises a pull rod sleeve (1), a pull rod (2) and a handle (3), wherein the pull rod (2) is inserted into the pull rod sleeve (1) and the two slide together up and down, the handle (3) is fixed to the upper end of the pull rod (2), a steering control panel (30) is arranged in the handle (3), a steering control device (31) electrically connected to the steering control panel (30) is arranged on the handle (3), a probe plate (4) is fixed to the outer wall of the pull rod (2), and the probe plate (4) is arranged at the lower end of the pull rod (2), and the The probe plate (4) is provided with two probes (40) electrically connected to the steering control plate (30); the inner side wall of the pull rod sleeve (1) is fixed with a strip guide rail (5), the strip guide rail (5) extends along the length direction of the pull rod sleeve (1); the strip guide rail (5) is provided with two electrical contact rails, the electrical contact rails extend along the length direction of the strip guide rail (5); the probes (40) correspond to the electrical contact rails one by one and abut against each other; the electrical contact rails are electrically connected to the main control panel of the electric luggage box.

2. The turn signal transmission guide rail mechanism for an electric luggage box according to claim 1, characterized in that: A conductive wire is inserted into the pull rod (2), and the conductive wire is electrically connected between the two probes (40) and the steering control board (30).

3. The turn signal transmission guide rail mechanism for an electric luggage box according to claim 1, characterized in that: The outer side wall of the pull rod (2) is provided with a first receiving groove (20), and the probe plate (4) is fixed in the first receiving groove (20).

4. The turn signal transmission guide rail mechanism for an electric luggage box according to claim 1, characterized in that: The inner side wall of the pull rod sleeve (1) is provided with a second accommodating groove (10), and the strip guide rail (5) is embedded in the second accommodating groove (10).

5. The turn signal transmission guide rail mechanism for an electric luggage box according to claim 1, characterized in that: The top of the handle (3) is provided with an elastic button (32), the lower end of the elastic button (32) is connected to a limit rod (33), the lower end of the pull rod (2) is fixed with a support (21), the support (21) is provided with a slider (22) capable of laterally elastic sliding, the end of the slider (22) is provided with a limit terminal (23), the limit terminal (23) passes through the support (21) and the side wall of the pull rod (2) in sequence, the pull rod sleeve (1) is provided with a limit hole (11) for the limit terminal (23) to pass through, and the top of the slider (22) is provided with a wedge-shaped notch (24). A wedge-shaped tongue (34) is fixed to the lower end of the limiting rod (33), the wedge-shaped tongue (34) and the wedge-shaped recess (24) are aligned with each other in the vertical direction and the inclined surfaces of the two 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 recess (24), and the slider (22) is driven to retreat into the support (21). When the elastic button (32) is released, the slider (22) elastically slides outward to allow the limiting end (23) to pass through the limiting hole (11).

6. The turn signal transmission guide rail mechanism for an electric luggage box as claimed in claim 5, characterized in that: A spring (25) is provided in the support (21), and the spring (25) elastically abuts against an end of the slider (22) away from the limiting end (23).

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