Draw-bar grip and draw bar of draw-bar box

Abstract

The utility model discloses a draw bar grip and a draw bar of a draw bar box, the draw bar grip comprises a grip shell, the grip shell comprises an upper shell and a lower shell used for being connected with an inner pipe of the draw bar, and the upper shell is detachably connected with the lower shell; the top face of the handle shell and the face facing the outside of the draw-bar box are both located on the upper shell, and the upper shell is made of metal. The upper shell of the grip shell is the metal piece, and the top surface of the grip shell and the surface facing the outside of the draw-bar box, namely the easily damaged part of the grip shell are positioned on the upper shell, so that the damage resistance of the grip shell is effectively enhanced, and the strength of the grip shell is ensured.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, specifically to a trolley case handle and trolley rod. Background Technology

[0002] A rolling suitcase is a type of luggage with a handle and wheels. It is widely used because it can carry a large number of items and is easy to move.

[0003] The handle on the pull rod makes it easier for users to pull the suitcase. In order to make the overall shape of the suitcase better and to minimize the impact of the handle on the internal space of the suitcase, the current design of the pull rod handle is to make the shape of the handle fit the shape of the suitcase, that is, to place the handle at the rounded corner of the suitcase. When it is used improperly or transported improperly, the pull rod handle is more likely to be impacted. Since the handle shell is usually made of plastic injection molding, it is easy to break when the handle shell is impacted. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a handle and handle for a trolley case, which has high handle strength.

[0005] To achieve the above objectives, this utility model discloses a handle for a rolling suitcase, which includes a handle housing. The handle housing includes an upper housing and a lower housing for connecting an inner tube to the rolling rod. The upper housing and the lower housing are detachably connected. The top surface and the surface of the handle housing facing the outside of the rolling suitcase are both located on the upper housing. The upper housing is made of metal.

[0006] The lower housing is fitted into the upper housing.

[0007] The upper housing and the lower housing are connected by screws. The upper housing has at least two threaded holes that are adapted to the screws inside, and the bottom of the lower housing has through holes that correspond one-to-one with the threaded holes.

[0008] The upper housing is provided with two first positioning ribs and at least two second positioning ribs, and the lower housing is provided with a first positioning groove that cooperates with the first positioning ribs and a second positioning groove that cooperates with the second positioning ribs.

[0009] The lower end of the first positioning rib is provided with a groove that mates with the wall of the inner tube.

[0010] The upper shell is provided with a first reinforcing structure, and the lower shell is provided with a second reinforcing structure. When the upper shell and the lower shell are connected, the first reinforcing structure and the second reinforcing structure abut against each other.

[0011] The lower housing is made of plastic.

[0012] This utility model also discloses a pull rod for a suitcase, which includes an inner tube, an outer tube, and the aforementioned pull rod handle; the inner tube and the outer tube are telescopically connected, and the upper end of the inner tube is connected to the lower shell.

[0013] It also includes control components and inner tube limit components;

[0014] The inner tube limiting assembly includes a pin cylinder, a pin, a positioning pin, and an elastic element for resetting the positioning pin. The pin cylinder is connected to the lower end of the inner tube. The positioning pin and the pin are slidably connected to the pin cylinder, and the pin can push the positioning pin to move. The positioning pin is provided with a pin, and the pin can extend out of the pin cylinder. The upper end of the pin is adapted to the shape of the inner cavity of the inner tube, and the top surface of the pin is recessed downward to form a guide groove.

[0015] The control component includes a button and a transmission steel bar. The button is located inside the grip housing and is slidably connected to and limited in fit with the upper housing. The upper end of the transmission steel bar is connected to the button, and the lower end of the transmission steel bar extends into the inner tube and abuts against the guide groove. Under normal conditions, the pin extends out of the pin cylinder. When the button is pressed, the pin pushes the positioning pin to squeeze the elastic element and the pin retracts back into the pin cylinder.

[0016] The pin cylinder is provided with a blind hole for mounting the elastic element, and the end of the elastic element away from the positioning pin is inserted into the blind hole.

[0017] By adopting the above solution, the upper shell of the grip housing is made of metal, and the top surface and the surface facing the outside of the trolley case—the parts of the grip housing most susceptible to damage—are located on the upper shell. This effectively enhances the grip housing's resistance to damage and ensures its strength. The aforementioned upper shell design eliminates the need for the lower shell to be made of metal, preventing an excessively heavy overall grip housing. Furthermore, by providing a guide groove on the pin of the inner tube limiting assembly, it is ensured that the transmission steel bar reliably presses down on the pin when the button is pressed, thereby driving the pin to retract. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a partial schematic diagram of the present invention (the upper shell is hidden).

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 An exploded view of the lever grip;

[0022] Figure 5 An exploded view of the lever grip from another perspective;

[0023] Figure 6 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0024] Explanation of symbols for main components:

[0025] 10 rolling suitcases;

[0026] 20mm outer tube;

[0027] Inner tube 30;

[0028] 40mm diameter tube;

[0029] Grip body 50; upper shell 51; first positioning rib 511; slot 5111; second positioning rib 512; lower shell 52; first positioning groove 521; second positioning groove 522; threaded hole 53; through hole 54; first reinforcing structure 55; second reinforcing structure 56;

[0030] 61. Pin cylinder; 62. Positioning pin; 63. Elastic element; 64. Insert pin; 65. Pin; 66. Mounting blind hole; 67. Mating groove; 68. First inclined surface; 69. Second inclined surface; 6a. Guide groove;

[0031] Button 71. Detailed Implementation

[0032] like Figure 1-6 As shown, this utility model discloses a pull rod for a trolley case 10, which includes an inner tube 30, an outer tube 20, a pull rod handle, a control component, and an inner tube 30 limiting component.

[0033] The lever handle includes a handle housing, which comprises an upper housing 51 and a lower housing 52. The upper housing 51 and the lower housing 52 are detachably connected, preferably by screws. The upper housing 51 has at least two threaded holes 53 that mate with the screws, and the bottom of the lower housing 52 has through holes 54 corresponding to the threaded holes 53. The threaded portion of the screw passes through the holes 54 and screws into the threaded holes 53 to lock the two together. Ribs inside the upper housing 51 engage with grooves on the lower housing 52. Specifically, the upper housing 51 has two first positioning ribs 511 and at least two second positioning ribs 512, and the lower housing 52 has a first positioning groove 521 that mates with the first positioning ribs 511 and a second positioning groove 522 that mates with the second positioning ribs 512. Through the cooperation of the first positioning rib 511 and the first positioning groove 521, and the cooperation of the second positioning rib 512 and the second positioning groove 522, the upper housing 51 is mutually restrained and directly slid into the lower housing 52 during installation from top to bottom. The alignment is accurate, and the screws are then tightened to complete the assembly. The lower end of the first positioning rib is provided with a groove 5111 that cooperates with the wall of the inner tube 30. Through the cooperation of the first positioning rib and the inner tube, it can be ensured that there is no shaking between the inner tube and the upper housing 51.

[0034] In this case, the top surface of the grip housing and the surface facing the outside of the rolling case 10 are both located in the upper housing 51, and the lower housing 52 is embedded in the upper housing 51. The upper housing 51 is made of metal, while the lower housing 52 is made of plastic. With this arrangement, when the handle is mounted on the rolling case 10, the surface of the grip housing that is more likely to come into contact with external objects is the metal surface, making it less prone to breakage when subjected to impact.

[0035] In addition, to strengthen the upper shell 51 and improve its resistance to deformation, a first stiffening structure 55 is provided in the upper shell 51, and a second stiffening structure 56 is provided in the lower shell 52. When the upper shell 51 and the lower shell 52 are connected, the first stiffening structure 55 and the second stiffening structure 56 abut against each other. Both the first stiffening structure 55 and the second stiffening structure 56 are composed of several stiffening strips, which can be arranged in a cross pattern.

[0036] The upper end of the inner tube 30 is bolted to the first housing, and the lower end of the inner tube 30 is inserted into the outer tube 20 and telescopically engages with it. As a conventional variation, a middle tube 40 can also be added, so that the inner tube 30 and the middle tube 40 telescopically engage, and the middle tube 40 and the outer tube 20 telescopically engage.

[0037] The inner tube 30 limiting component is used to limit and cooperate with the outer tube 20 (if there is a middle tube 40, the inner tube 30 limiting component limits the middle tube 40, and the bottom of the middle tube 40 is provided with a middle tube 40 limiting component to cooperate with the outer tube 20; the middle tube 40 limiting component has a similar or identical structure to the inner tube 30 limiting component; the middle tube 40 limiting component is not the focus of this case and will not be described in detail). In this embodiment, the inner tube 30, middle tube 40, and outer tube 20 are set as flat tubes. The inner tube 30 limiting component includes a pin cylinder 61, a positioning pin 62, an elastic element 63, and a pin 64. The pin cylinder 61 is screwed, snap-fitted, or riveted to the lower end of the inner tube 30. The positioning pin 62 is slidably connected in the pin cylinder 61, and the sliding direction of the pin is perpendicular to the length direction of the inner tube 30. A pin 65 is provided on the front side of the sliding direction of the positioning pin 62, and a through hole for the pin 65 to extend is provided on the side wall of the pin cylinder 61. The elastic element 63 is located on the side of the locating pin 62 away from the pin 65. The elastic element 63 is preferably a spring. One end of the elastic element 63 abuts against the side wall of the pin cylinder 61, and the other end abuts against the locating pin 62. In order to prevent the elastic element 63 from dislodging, a blind hole 66 for limiting the elastic element 63 is provided on the pin cylinder 61. The end of the elastic element 63 away from the locating pin 62 is inserted into the blind hole 66.

[0038] The top surface of the locating pin 62 is recessed downwards to form a mating groove 67, in which a first inclined surface 68 slopes downwards. The pin 64 is slidably connected to and limited in fit with the pin cylinder 61, preventing the pin 64 from easily disengaging from the pin cylinder 61. The sliding direction of the pin 64 is parallel to the length direction of the inner tube 30. At the lower end of the pin 64, a second inclined surface 69 is provided, which is adapted to the first inclined surface 68. When the pin 64 moves downwards, the first inclined surface 68 and the second inclined surface 69 cooperate to push the locating pin 62 to slide, causing the pin 65 to retract into the pin cylinder 61, while compressing the elastic element 63.

[0039] The control assembly includes a button 71 and a transmission steel bar. The button 71 is located inside the grip housing and is slidably connected to and limited in fit with the upper housing 51, meaning the button 71 cannot be dislodged from the upper housing 51. The sliding direction of the button 71 is along the length of the inner tube 30. The upper end of the transmission steel bar is connected to the button 71, and the lower end of the transmission steel bar extends into the inner tube 30 and abuts against the pin 64. With this configuration, pressing down the button 71 will push the pin 64. To facilitate the connection between the button 71 and the transmission steel bar, a relatively long pressure plate is usually provided below the button 71. The pressure plate is integrally formed with or fixedly connected to the button 71, and the upper end of the transmission steel bar is connected to the pressure plate. In addition, to ensure reliable reset of the button 71, a spring is usually pressed between the pressure plate and the lower housing 52.

[0040] To ensure that the transmission steel bar reliably pushes the pin 64, the following settings are made: the upper end of the pin 64 is designed to match the shape of the inner cavity of the inner tube 30, and the top surface of the pin 64 is recessed downward to form a guide groove 6a. In this way, when the transmission steel bar is assembled and moves up and down, its lower end can be reliably guided into the guide groove 6a, ensuring that the downward pressure of the transmission steel bar is reliably applied to the pin 64.

[0041] The key to this invention lies in the fact that by making the upper shell 51 of the grip housing a metal part, and by placing the top surface of the grip housing and the surface facing the outside of the trolley case 10—that is, the easily damaged parts of the grip housing—on the upper shell 51, the damage resistance of the grip housing is effectively enhanced, ensuring the strength of the grip housing. The aforementioned upper shell 51 design eliminates the need for the lower shell 52 to be a metal part, thus preventing the overall weight of the grip housing from being excessive. Furthermore, by providing a guide groove 6a on the pin 64 of the inner tube 30 limiting assembly, it is ensured that when the button 71 is pressed, the transmission steel bar can reliably press down on the pin 64, thereby driving the pin 65 to retract.

[0042] The above description is merely an embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A handle for a rolling suitcase, characterized in that: The grip housing includes an upper housing and a lower housing for connecting an inner tube to a pull rod, the upper housing and the lower housing being detachably connected; the top surface of the grip housing and the surface facing the outside of the pull rod case are both located on the upper housing, the upper housing being made of metal.

2. The handle for a suitcase according to claim 1, characterized in that: The lower housing is fitted into the upper housing.

3. The handle for a suitcase according to claim 1, characterized in that: The upper housing and the lower housing are connected by screws. The upper housing has at least two threaded holes that are adapted to the screws inside, and the bottom of the lower housing has through holes that correspond one-to-one with the threaded holes.

4. The handle for a suitcase according to claim 1, characterized in that: The upper housing is provided with two first positioning ribs and at least two second positioning ribs, and the lower housing is provided with a first positioning groove that cooperates with the first positioning ribs and a second positioning groove that cooperates with the second positioning ribs.

5. The handle of the same type of suitcase according to claim 4, characterized in that: The lower end of the first positioning rib is provided with a groove that mates with the wall of the inner tube.

6. The handle for a suitcase according to claim 1, characterized in that: The upper shell is provided with a first reinforcing structure, and the lower shell is provided with a second reinforcing structure. When the upper shell and the lower shell are connected, the first reinforcing structure and the second reinforcing structure abut against each other.

7. The handle for a suitcase according to claim 1, characterized in that: The lower housing is made of plastic.

8. A pull handle for a suitcase, characterized in that: It includes an inner tube, an outer tube, and a pull rod handle as described in any one of claims 1-5; the inner tube and the outer tube are telescopically connected, and the upper end of the inner tube is connected to the lower housing.

9. The pull handle of a suitcase according to claim 8, characterized in that: It also includes control components and inner tube limit components; The inner tube limiting assembly includes a pin cylinder, a pin, a positioning pin, and an elastic element for resetting the positioning pin. The pin cylinder is connected to the lower end of the inner tube. The positioning pin and the pin are slidably connected to the pin cylinder, and the pin can push the positioning pin to move. The positioning pin is provided with a pin, and the pin can extend out of the pin cylinder. The upper end of the pin is adapted to the shape of the inner cavity of the inner tube, and the top surface of the pin is recessed downward to form a guide groove. The control component includes a button and a transmission steel bar. The button is located inside the grip housing and is slidably connected to and limited in fit with the upper housing. The upper end of the transmission steel bar is connected to the button, and the lower end of the transmission steel bar extends into the inner tube and abuts against the guide groove. Under normal conditions, the pin extends out of the pin cylinder. When the button is pressed, the pin pushes the positioning pin to squeeze the elastic element and the pin retracts back into the pin cylinder.

10. The pull handle of a suitcase according to claim 9, characterized in that: The pin cylinder is provided with a blind hole for mounting the elastic element, and the end of the elastic element away from the positioning pin is inserted into the blind hole.

Images