Telescopic sliding plate mechanism for draw-bar box

Abstract

The utility model discloses a telescopic sliding plate mechanism for a draw-bar box, and particularly relates to the technical field of luggage accessories, the telescopic sliding plate mechanism comprises a device shell, a sliding plate assembly is arranged on the left side in the device shell, a fixed draw bar is arranged on the right side in the device shell, and a fixing assembly is movably arranged in the fixed draw bar; a window only allowing the fixing assembly to pass through is formed in the front end of the fixing pull rod, a sliding plate pull rod is movably arranged at the top end of the sliding plate assembly, and a pull rod grip is jointly arranged at the front ends of the fixing assembly and the sliding plate pull rod. According to the telescopic sliding plate mechanism for the draw-bar box disclosed by the utility model, the sliding plate pull rod and the sliding plate assembly are cooperatively and movably connected, so that the driving motor does work in the push-pull process, and the sliding plate pull rod, the pull rod grip and the fixing assembly are automatically pushed out; the structure aims at improving the working smoothness and comfort of the draw bar of the draw-bar box.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage accessories, and particularly relates to a telescopic skateboard mechanism for a rolling suitcase. Background Technique

[0002] A rolling suitcase refers to a luggage with a pull rod and rollers. It is widely used because of its convenience. At the same time, for a rolling suitcase with a pull rod, there are single-tube pull rods and double-tube pull rods, and the tubes of the pull rods are also divided into square tubes and round tubes, which is convenient to drag when walking and greatly reduces the burden.

[0003] Chinese Patent Application Document CN108851429A discloses a telescopic skateboard mechanism for a rolling suitcase. A chute is provided on a mounting plate. A pair of pulleys are symmetrically arranged in the chute relative to the center line of the chute. A first mounting shaft is installed on the pulley. First pistons are installed on opposite sides of the first mounting shaft. A first piston is installed on the first piston. A first piston shaft is installed on the first piston. A limiting plate is installed on the first piston shaft. A roller mounting seat is installed at the lower end of the mounting plate. A roller is installed on the roller mounting seat. A second piston is installed at the lower end of the mounting plate. A second piston shaft is installed on the second piston. A first limiting plate is installed on the second piston shaft. A third piston shaft is installed on the first limiting plate. A third piston is installed on the third piston shaft. A skateboard is installed on the third piston. In the process of moving the rolling suitcase, the above-mentioned device realizes flexible adjustment of sliding and rolling, and improves the convenience and stability of moving the rolling suitcase.

[0004] Although the mechanism in the above-mentioned document can improve the convenience and stability of moving the rolling suitcase, in the actual use process, the device is not stably fixed in the mechanism, and the mechanism is severely worn when used by different users, and the telescopic movement of the pull rod is inconvenient. Content of the Utility Model

[0005] The purpose of the utility model is to provide a telescopic skateboard mechanism for a rolling suitcase to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a telescopic skateboard mechanism for a rolling suitcase.

[0007] Preferably, it includes a device housing. A skateboard assembly is arranged on the left inside the device housing. A fixed pull rod is arranged on the right inside the device housing. A fixing component is movably arranged inside the fixed pull rod. A window that only allows the fixing component to pass through is opened at the front end of the fixed pull rod. A skateboard pull rod is movably arranged at the top of the skateboard assembly. Two windows that only allow the fixing component and the skateboard pull rod to pass through are opened at the front end of the device housing. A pull rod grip is jointly arranged at the front ends of the fixing component and the skateboard pull rod.

[0008] Preferably, the fixing component and the skateboard pull rod are cuboids of the same size.

[0009] Preferably, the skateboard component includes a bottom plate. Two synchronous gears parallel to each other front and back are arranged on the right side of the top end of the bottom plate. A synchronous belt is meshed and connected between the two synchronous gears. A driving motor is fixedly connected to the rear of the top end of the bottom plate. The right end of the driving motor is rotationally connected to the left end of the rear synchronous gear. The left end of the front synchronous gear is rotationally connected to a support wheel. The center point of the left end of the support wheel is rotationally connected to a support plate. One end of the support plate far from the center point of the support wheel is fixedly connected to the top end of the bottom plate. Two L-shaped limit plates are fixedly connected in parallel and opposite to each other on both sides of the top end of the bottom plate at a relatively far distance. The bottom end of the bottom plate is fixedly connected to the inner bottom end of the device housing.

[0010] Preferably, the skateboard pull rod includes a pull rod main body. The bottom end of the pull rod main body is closely attached to the top end of the synchronous belt. A belt pressing plate is fixedly connected to the rear of the bottom end of the pull rod main body. The belt pressing plate covers the synchronous belt and is connected to the pull rod main body. A blocking plate is fixedly connected to the rear end of the belt pressing plate. The upper part of the front end of the blocking plate is fixedly connected to the rear end of the pull rod main body. The part of the blocking plate extending downward beyond the belt pressing plate is one-half of itself.

[0011] Preferably, the pull rod grip includes a grip. A grip button is movably connected to the right side of the front end of the grip. A fixed grip sleeve is movably connected to the outer surface of the grip.

[0012] Preferably, the fixing component includes a component housing. The outer surface of the component housing is closely attached to the inner end of the fixed pull rod. A pressing rod is arranged in the middle of the inner end of the component housing. The front end of the pressing rod is fixedly connected to the rear end of the grip button. A groove is opened in the middle of the rear end of the pressing rod. A fixed lever is rotationally connected to the groove. One end of the fixed lever far from the groove is rotationally connected to a connecting shaft. The middle of the fixed lever is rotationally connected through a fulcrum column. The top end of the fulcrum column is fixedly connected to the top of the inner end of the component housing. One end of the connecting shaft far from the fixed lever is rotationally connected to a lifting groove. A fixed spring column is fixedly connected to the rear end of the lifting groove. The left end of the fixed spring column is fixedly connected to a fixed spring. The left end of the fixed spring is fixedly connected to the left inner part of the component housing.

[0013] Preferably, the component housing is provided with a hole at the right end horizontally parallel to the right end of the fixed spring column for the fixed spring column to pass through.

[0014] Preferably, several holes with the same diameter as the fixed spring column are opened at the right end of the fixed pull rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. The utility model adopts a cooperative movable connection design between the sliding plate pull rod and the sliding plate assembly, enabling the driving motor to do work during the pushing and pulling process, thereby automatically pushing out the sliding plate pull rod and its pull rod grip together with the fixing assembly. This structure aims to improve the smoothness and comfort of the pull rod of the luggage case, reduce the manual force while reducing the possible jamming phenomenon during the pushing and pulling process.

[0017] 2. The utility model combines the fixing assembly with the sliding groove of the sliding plate pull rod and the built-in fixing device to achieve firm fixation and precise limit of the pull rod of the luggage case. At the same time, combined with the fixed grip sleeve and the automatic lifting sliding plate assembly, the user can easily stretch the pull rod in a hand-off state, significantly reducing the wear and jamming phenomenon caused by manual pulling, not only enhancing the practicality of the pull rod, but also greatly improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the utility model.

[0019] Figure 2 It is a schematic internal structural diagram of the utility model.

[0020] Figure 3 It is a schematic structural diagram of the sliding plate assembly of the utility model.

[0021] Figure 4 It is a schematic structural diagram of the fixing assembly of the utility model.

[0022] Figure 5 For the utility model Figure 4 Schematic diagram of the structure at position A in it.

[0023] In the figure: 1. Pull rod grip; 11. Grip button; 12. Grip; 13. Fixed grip sleeve; 2. Fixing assembly; 21. Assembly housing; 22. Pushing rod; 23. Fixed lever; 24. Fulcrum column; 25. Connecting shaft; 26. Lifting groove; 27. Fixed spring; 28. Fixed spring post; 3. Sliding plate pull rod; 31. Pull rod main body; 32. Pressing belt plate; 33. Blocking plate; 4. Device housing; 5. Sliding plate assembly; 51. Support wheel; 52. Support plate; 53. Limiting plate; 54. Synchronous belt; 55. Bottom plate; 56. Driving motor; 57. Synchronous gear; 6. Fixed pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 and Figure 2 , the present utility model provides a technical solution for a telescopic skateboard mechanism for a luggage case: a telescopic skateboard mechanism for a luggage case, including a device housing 4, a skateboard assembly 5 is arranged on the left inside the device housing 4, a fixed pull rod 6 is arranged on the right inside the device housing 4, a fixing assembly 2 is movably arranged inside the fixed pull rod 6, a window for only allowing the fixing assembly 2 to pass through is opened at the front end of the fixed pull rod 6, a skateboard pull rod 3 is movably arranged at the top of the skateboard assembly 5, two windows for only allowing the fixing assembly 2 and the skateboard pull rod 3 to pass through are opened at the front end of the device housing 4, and a pull rod grip 1 is jointly arranged at the front ends of the fixing assembly 2 and the skateboard pull rod 3.

[0026] The skateboard pull rod 3 is pushed out through the skateboard assembly 5 arranged inside the device housing 4, and the associated pull rod grip 1 and the fixing assembly 2 are moved out together. After reaching the expected position, it is fixed through the fixing assembly 2 as needed. When it needs to be closed, press the grip button 11 on the pull rod grip 1 to push it closed.

[0027] Please refer to Figure 2 , the pull rod grip 1 includes a grip 12, a grip button 11 is movably connected to the right front of the grip 12, the grip button 11 can control the opening and closing state of the fixing spring post 28 in the fixing assembly 2 to control the fixing, a fixing grip sleeve 13 is movably connected to the outer surface of the grip 12, and 13 can fix the grip button 11 when the skateboard assembly 5 is automatically pushed out to prevent it from bouncing up. The fixing assembly 2 and the skateboard pull rod 3 are cuboids of the same size.

[0028] Please refer to Figure 3 , the skateboard pull rod 3 includes a pull rod main body 31, the bottom end of the pull rod main body 31 is closely attached to the top end of the synchronous belt 54, a pressure belt plate 32 is fixedly connected to the rear of the bottom end of the pull rod main body 31, the pressure belt plate 32 covers the synchronous belt 54 and is connected to the pull rod main body 31, a blocking plate 33 is fixedly connected to the rear end of the pressure belt plate 32, the front upper part of the blocking plate 33 is fixedly connected to the rear end of the pull rod main body 31, and the part where the blocking plate 33 extends downward beyond the pressure belt plate 32 is one-half of its own.

[0029] Please refer to Figure 3, the skateboard assembly 5 includes a bottom plate 55. There are two synchronizing gears 57 arranged parallel to each other front and back on the right side of the top end of the bottom plate 55. A synchronous belt 54 is meshed and connected between the two synchronizing gears 57. A driving motor 56 is fixedly connected to the rear of the top end of the bottom plate 55. The right end of the driving motor 56 is rotationally connected to the left end of the rear synchronizing gear 57. The left end of the front synchronizing gear 57 is rotationally connected to a support wheel 51. The center point of the left end of the support wheel 51 is rotationally connected to a support plate 52. One end of the support plate 52 far from the center point of the support wheel 51 is fixedly connected to the top end of the bottom plate 55. Two L-shaped limiting plates 53 are fixedly connected in parallel and opposite to each other on both sides of the top end of the bottom plate 55 with a relatively large distance. The bottom end of the bottom plate 55 is fixedly connected to the inner bottom end of the device housing 4.

[0030] When starting, press the driving motor 56. At this time, the synchronizing gear 57 connected to the driving motor 56 rotates and does work. Through the meshed synchronous belt 54, the front synchronizing gear 57 is synchronously driven to rotate. The two synchronizing gears 57 rotate, the synchronous belt moves, and the belt pressing plate 32 fixed on the synchronous belt drives the pull rod body 31 to move together with the synchronous belt. When moving to the front end, the blocking plate 33 will collide with the front limiting plate 53 to limit the movement. At this time, the driving motor 56 stops rotating due to resistance, completing the extension work of the skateboard pull rod 3. If it needs to be retracted, it can be directly pushed. Push the belt pressing plate 32 fixing the synchronous belt 54 on the pull rod body 31 to the rearmost end. After the blocking plate 33 collides with the rear limiting plate 53, it stops.

[0031] Please refer to Figure 4 , a plurality of holes with the same diameter as the fixing spring post 28 are provided at the right end of the fixing pull rod 6, which can allow the fixing spring post 28 to pass through the holes at the right end of the assembly housing 21 and the holes on the fixing pull rod 6 at the same time to achieve the fixing effect.

[0032] Please refer to Figure 4 and Figure 5 , the fixing assembly 2 includes an assembly housing 21. The outer surface of the assembly housing 21 is closely attached to the inner end of the fixing pull rod 6. An actuating rod 22 is arranged in the middle of the inner end of the assembly housing 21. The front end of the actuating rod 22 is fixedly connected to the rear end of the grip button 11. A groove is provided in the middle of the rear end of the actuating rod 22. A fixing lever 23 is rotationally connected to the groove. One end of the fixing lever 23 far from the groove is rotationally connected to a connecting shaft 25. A fulcrum post 24 is rotationally connected through the middle of the fixing lever 23. The top end of the fulcrum post 24 is fixedly connected to the top of the inner end of the assembly housing 21. One end of the connecting shaft 25 far from the fixing lever 23 is rotationally connected to a lifting groove 26. A fixing spring post 28 is fixedly connected to the rear end of the lifting groove 26. A fixing spring 27 is fixedly connected to the left end of the fixing spring post 28. The left end of the fixing spring 27 is fixedly connected to the inner left end of the assembly housing 21.

[0033] After pressing the grip button 11, the push rod 22 moves backward, pressing the fulcrum column 24 so that its other end drives the connecting shaft 25 to lift up, so that the other end of the connecting shaft 25 pulls the fixed spring column 28 to disengage from the fixed hole, allowing the fixed component 2 to move. After releasing the grip button 11, the fixed spring 27 lifts up the fixed spring column 28, and the fulcrum column 24 causes the push rod 22 to move forward. At the same time, the fixed spring column 28 moves to the right end through the holes at the right end of the component housing 21 and the right end of the fixed pull rod 6 to achieve fixation.

[0034] See also Figure 5 The component housing 21 is provided with a hole for accommodating the fixing elastic column 28 at the right end thereof which is transversely parallel to the right end of the fixing elastic column 28 .

[0035] Working principle:

[0036] First, when the pull rod is retracted, press and hold the grip button 11 and push the fixed handle cover 13 to the top of the grip button 11, so that the fixed handle cover 13 wraps the grip button 11 to prevent it from popping out, and keeps the connected fixed component 2 in a movable state. Then turn on the drive motor 56, wait for the pull rod to be pushed out as a whole to reach the expected position, then turn off the drive motor 56, move the pull rod handle 1 up and down to make the fixed spring column 28 fit into the hole on the nearest fixed pull rod 6 to fix the pull rod. When the pull rod needs to be retracted, just press and hold the grip button 11 and push it toward the fixed component 2 and the skateboard pull rod 3 to the bottom.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic slide mechanism for a suitcase, comprising a device housing (4), characterized in that: A slide plate assembly (5) is arranged on the left side of the device housing (4), a fixed rod (6) is arranged on the right side of the device housing (4), a fixed assembly (2) is movably arranged inside the fixed rod (6), a window for only accommodating the passage of the fixed assembly (2) is provided at the front end of the fixed rod (6), a slide plate rod (3) is movably arranged at the top of the slide plate assembly (5), two windows for only the passage of the fixed assembly (2) and the slide plate rod (3) are provided at the front end of the device housing (4), and a rod handle (1) is commonly provided at the front ends of the fixed assembly (2) and the slide plate rod (3).

2. The telescopic slide mechanism for a suitcase according to claim 1, characterized in that: The fixing assembly (2) and the slide plate pull rod (3) are rectangular parallelepipeds of the same size.

3. The telescopic slide mechanism for a suitcase according to claim 1, characterized in that: The slide plate assembly (5) comprises a bottom plate (55), two synchronous gears (57) are arranged on the right side of the top of the bottom plate (55) and are parallel to each other, a synchronous belt (54) is meshed and connected between the two synchronous gears (57), a driving motor (56) is fixedly connected to the rear of the top of the bottom plate (55), the right end of the driving motor (56) is rotatably connected to the left end of the synchronous gear (57) at the rear, the left end of the synchronous gear (57) at the front is rotatably connected to a support wheel (51), the center point of the left end of the support wheel (51) is rotatably connected to a support plate (52), one end of the support plate (52) away from the center point of the support wheel (51) is fixedly connected to the top of the bottom plate (55), two L-shaped limit plates (53) are parallelly and relatively fixedly connected to the two sides of the top of the bottom plate (55) that are far away from each other, and the bottom end of the bottom plate (55) is fixedly connected to the bottom end of the inside of the device housing (4).

4. The telescopic slide mechanism for a suitcase according to claim 3, characterized in that: The slide plate pull rod (3) comprises a pull rod body (31), the bottom end of the pull rod body (31) is tightly attached to the top end of the synchronous belt (54), a belt pressing plate (32) is fixedly connected to the rear of the bottom end of the pull rod body (31), the belt pressing plate (32) covers the synchronous belt (54) and is connected to the pull rod body (31), a blocking plate (33) is fixedly connected to the rear end of the belt pressing plate (32), the upper front end of the blocking plate (33) is fixedly connected to the rear end of the pull rod body (31), and the portion of the blocking plate (33) that extends downward beyond the belt pressing plate (32) is one-half of itself.

5. The telescopic slide mechanism for a suitcase according to claim 1, characterized in that: The pull rod handle (1) comprises a handle (12), the front right side of the handle (12) is movably connected to a handle button (11), and the outer surface of the handle (12) is movably connected to a fixed handle cover (13).

6. The telescopic slide mechanism for a suitcase according to claim 5, characterized in that: The fixing component (2) comprises a component housing (21), the outer surface of the component housing (21) is tightly attached to the inner end of the fixing pull rod (6), a push rod (22) is arranged in the middle of the inner end of the component housing (21), the front end of the push rod (22) is fixedly connected to the rear end of the grip button (11), a groove is provided in the middle of the rear end of the push rod (22), the groove is rotatably connected to a fixing lever (23), the end of the fixing lever (23) away from the groove is rotatably connected to a connecting shaft (25), the fixing lever A fulcrum column (24) is rotatably connected to the middle of the rod (23); the top of the fulcrum column (24) is fixedly connected to the top of the inner end of the component housing (21); the end of the connecting shaft (25) away from the fixed lever (23) is rotatably connected to a lifting groove (26); the rear end of the lifting groove (26) is fixedly connected to a fixed spring column (28); the left end of the fixed spring column (28) is fixedly connected to a fixed spring (27); the left end of the fixed spring (27) is fixedly connected to the left end inside the component housing (21).

7. The telescopic slide mechanism for a suitcase according to claim 6, characterized in that: The component housing (21) is provided with a through hole capable of accommodating the fixed elastic column (28) at the right end thereof which is transversely parallel to the right end of the fixed elastic column (28).

8. The telescopic slide plate mechanism for a suitcase according to claim 6, characterized in that: The right end of the fixed pull rod (6) is provided with a plurality of holes having the same diameter as that of the fixed elastic column (28).

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