Telescopic and bendable pull rod and luggage

Abstract

The pull rod comprises a telescopic pipe set, a storage pipe and a handle, the telescopic pipe set can be shortened and stored in the storage pipe, one end of the telescopic pipe set is movably arranged in the storage pipe in a sleeved mode, the other end of the telescopic pipe set is connected with the handle, a first locking unit is arranged between the telescopic pipe set and the storage pipe, and a second locking unit is arranged between the telescopic pipe set and the storage pipe. The telescopic pipe set is provided with a first locking unit, the first locking unit can enable the telescopic pipe set to be in a locking state when the telescopic pipe set is stored in the storage pipe, the telescopic pipe set is provided with a second locking unit, the second locking unit can enable the telescopic pipe set to be in a locking state after extending to a preset length, and the handle is provided with a control unit for controlling to release the locking states of the first locking unit and the second locking unit; the telescopic pipe set is provided with a bending assembly, the bending assembly has a first state and a second state, when the bending assembly is in the first state, the telescopic pipe set can be stored in the storage pipe in a sliding mode, and when the bending assembly is in the second state, the telescopic pipe set can be bent to a preset angle.

Description

Technical Field

[0001] The utility model relates to the technical field of bags, in particular to a telescopic and bendable pull rod and a bag. Background Art

[0002] A suitcase, also known as a travel suitcase or a trolley case, is a box that is carried when going out to store items. Usually, a suitcase is used to store clothes, personal care products, etc. that are needed for the journey. Most existing suitcases are equipped with a telescopic trolley, which cooperates with the pulley at the bottom to facilitate carrying when going out. However, the trolley of the suitcase can only be adjusted in the length dimension by telescoping. During the actual towing process, if the suitcase is moved in an upright state, it is not easy to control the direction. If the suitcase is moved in an inclined state, the human hand needs to bear part of the gravity of the box, resulting in insufficient effort. Utility Model Content

[0003] The main purpose of the utility model is to provide a retractable and bendable pull rod and a bag to solve the above problems.

[0004] To achieve the above-mentioned purpose, one aspect of the utility model provides a telescopic and bendable pull rod, comprising a telescopic tube group, a storage tube and a handle, wherein the telescopic tube group can be shortened and stored in the storage tube, one end of the telescopic tube group is movably sleeved in the storage tube, and the other end of the telescopic tube group is connected to the handle, a first locking unit is provided between the telescopic tube group and the storage tube, the first locking unit can make the telescopic tube group in a locked state when it is stored in the storage tube, the telescopic tube group is provided with a second locking unit, the second locking unit can make the telescopic tube group in a locked state after being extended to a preset length, and the handle is provided with a control unit for controlling the release of the locking state of the first locking unit and the second locking unit; the telescopic tube group is provided with a bending assembly, the bending assembly has a first state and a second state, when the bending assembly is in the first state, the telescopic tube group can be slidably stored in the storage tube, and when the bending assembly is in the second state, the telescopic tube group can be bent to a preset angle.

[0005] Furthermore, the telescopic tube group includes a bending tube provided with the bending assembly, the outer diameter of the bending tube is adapted to the inner diameter of the storage tube, and when the bending assembly is in the first state, the outer diameter of the bending assembly is less than or equal to the outer diameter of the bending tube.

[0006] Further, the bending assembly includes a first bending part and a second bending part, the bending tube includes a first tube and a second tube, one end of the first tube is movably sleeved on the storage tube, the first bending part is arranged at one end of the first tube, the second bending part is arranged at one end of the second tube, and the first bending part is hinged to the second bending part.

[0007] Furthermore, the first bending member is provided with a protrusion extending to one side, the second bending member is provided with a recess matched with the protrusion, and a rotating shaft is provided through the middle of the protrusion and the recess.

[0008] Furthermore, the telescopic tube set includes a first telescopic tube, the outer diameter of the first telescopic tube is adapted to the inner diameter of the bending tube, and one end of the first telescopic tube is movably sleeved in the bending tube.

[0009] Furthermore, the telescopic tube set includes a second telescopic tube, the outer diameter of the second telescopic tube is matched with the inner diameter of the first telescopic tube, and one end of the second telescopic tube is movably sleeved in the first telescopic tube.

[0010] Furthermore, the lengths of the first telescopic tube and the second telescopic tube are both less than or equal to the length of the second tube, and the length of the bent tube is less than or equal to the length of the storage tube.

[0011] Furthermore, the first locking unit is provided between the bending tube and the storage tube, and the second locking unit is provided between the bending tube and the storage tube, between the bending tube and the first telescopic tube, and between the first telescopic tube and the second telescopic tube.

[0012] Further, the first locking unit and the second locking unit both include a locking pin and a limiting hole, the locking pin is in a locked state when inserted into the limiting hole, and the control unit can drive the locking pin to disengage from the limiting hole.

[0013] Another aspect of the utility model provides a bag, comprising the telescopic and bendable pull rod, and a base, wherein the storage tube is fixedly mounted on the base, and a pulley is disposed on the bottom surface of the base.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The pull rod can be extended and bent, and can be adjusted to a suitable length and angle, making it more comfortable and labor-saving to use;

[0016] 2. The first locking unit can ensure the stability of its storage state and it will not detach automatically, while the second locking unit can lock its telescopic length to prevent it from automatically shortening. The control unit can contact the locking states of the two to achieve free and controllable switching of the pull rod state, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the pull rod structure of an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the pull rod structure of an embodiment of the utility model;

[0021] Figure 4 for Figure 3 A partial enlarged schematic diagram of

[0022] Explanation of the accompanying drawings: 1-base; 2-storage tube; 3-handle; 4-pulley; 5-button; 6-first bending piece; 7-second bending piece; 8-first tube; 9-second tube; 10-protrusion; 11-recess; 12-rotating shaft; 13-first telescopic tube; 14-locking pin; 15-limiting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] Example: Refer to Figures 1 to 4 The utility model proposes a suitcase, comprising a base 1 and a retractable and bendable pull rod, the pull rod comprising a telescopic tube group, a storage tube 2 and a handle 3, the storage tube is fixedly arranged on the base, pulleys 4 are arranged at the four corners of the bottom surface of the base, a groove 5 is arranged in a concave manner on one side of the base, the storage tube passes through the bottom surface of the groove and extends into the base, the telescopic tube group can be shortened and stored in the storage tube, one end of the telescopic tube group is movably sleeved in the storage tube, the other end of the telescopic tube group is connected to the handle, the handle is placed in the groove when the telescopic tube group can be shortened and stored in the storage tube, a first locking unit is arranged between the telescopic tube group and the storage tube, the first locking unit can make the telescopic tube group be locked when it is stored in the storage tube The telescopic tube group is provided with a second locking unit, and the second locking unit can make the telescopic tube group be in a locked state after being extended to a preset length. The handle is provided with a control unit for controlling the release of the locking state of the first locking unit and the second locking unit. In this embodiment, the control unit is a button 5 arranged in the middle of the handle, and the button controls the first locking unit and the second locking unit through a linkage assembly arranged in the pull rod; the telescopic tube group is provided with a bending assembly, and the bending assembly has a first state and a second state. When the bending assembly is in the first state, the telescopic tube group can be slidably stored in the storage tube, and when the bending assembly is in the second state, the telescopic tube group can be bent to a preset angle. The telescopic tube group includes a bending tube provided with a bending assembly, and the outer diameter of the bending tube is adapted to the inner diameter of the storage tube. When the bending assembly is in the first state, the outer diameter of the bending assembly is less than or equal to the outer diameter of the bending tube. The bending assembly includes a first bending part 6 and a second bending part 7, and the bending tube includes a first tube 8 and a second tube 9. One end of the first tube is movably sleeved on the storage tube, the first bending part is arranged at one end of the first tube, and the second bending part is arranged at one end of the second tube. The first bending part is hinged to the second bending part.

[0027] Specifically, the first bending member is provided with a protrusion 10 extending to one side, the second bending member is provided with a recess 11 adapted to the protrusion, and a rotating shaft 12 is provided in the middle of the protrusion and the recess. The telescopic tube group includes a first telescopic tube 13, the outer diameter of the first telescopic tube is adapted to the inner diameter of the bending tube, and one end of the first telescopic tube is movably sleeved in the first tube. The telescopic tube group includes a second telescopic tube (not shown in the figure), the outer diameter of the second telescopic tube is adapted to the inner diameter of the first telescopic tube, and one end of the second telescopic tube is movably sleeved in the first telescopic tube. The lengths of the first telescopic tube and the second telescopic tube are both less than or equal to the length of the second tube, and the length of the bending tube is less than or equal to the length of the storage tube. A first locking unit is provided between the bending tube and the storage tube, and a second locking unit is provided between the bending tube and the storage tube, between the bending tube and the first telescopic tube, and between the first telescopic tube and the second telescopic tube. The first locking unit and the second locking unit both include a locking pin 15 and a limiting hole 16. The locking pin is in a locked state when inserted into the limiting hole. The control unit can drive the locking pin to disengage from the limiting hole.

[0028] The working principle of this embodiment is as follows:

[0029] When in use, the button on the handle is pressed once to control the release of the locking state of the first locking unit, so that the bending tube and the storage tube are disengaged from the limit, the bending tube is drawn out of the storage tube, the first telescopic tube is drawn out of the second tube, and the second telescopic tube is drawn out of the first telescopic tube. At this time, the telescopic tube group is in the longest state, and the second locking unit locks and fixes the length state of the telescopic tube group; then, an external force is applied in a direction perpendicular to the handle to make the second tube and the first tube rotate relative to each other along the rotating shaft, so that the bending tube is bent at a certain angle, and the bending angle of the telescopic tube group is adjusted.

[0030] When storing, press the button on the handle once to release the locking state of the second locking unit, apply external force through the handle to gradually shorten the telescopic tube group, and adjust the bent tube to a straight state. Finally, the entire telescopic tube group is stored in the storage tube, and the first locking unit returns to the locked state.

[0031] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A telescopic and bendable pull rod, characterized in that: The telescopic tube group comprises a telescopic tube set, a storage tube and a handle, wherein the telescopic tube set can be shortened and stored in the storage tube, one end of the telescopic tube set is movably sleeved in the storage tube, and the other end of the telescopic tube set is connected to the handle, a first locking unit is provided between the telescopic tube group and the storage tube, and the first locking unit can make the telescopic tube set in a locked state when it is stored in the storage tube, the telescopic tube group is provided with a second locking unit, and the second locking unit can make the telescopic tube set in a locked state after being extended to a preset length, and the handle is provided with a control unit for controlling the release of the locking states of the first locking unit and the second locking unit; The telescopic tube group is provided with a bending assembly, and the bending assembly has a first state and a second state. When the bending assembly is in the first state, the telescopic tube group can be slidably stored in the storage tube, and when the bending assembly is in the second state, the telescopic tube group can be bent to a preset angle.

2. A telescopic and bendable pull rod according to claim 1, characterized in that: The telescopic tube group includes a bending tube provided with the bending assembly, the outer diameter of the bending tube is adapted to the inner diameter of the storage tube, and when the bending assembly is in a first state, the outer diameter of the bending assembly is less than or equal to the outer diameter of the bending tube.

3. A telescopic and bendable pull rod as claimed in claim 2, characterized in that: The bending assembly includes a first bending part and a second bending part, and the bending tube includes a first tube and a second tube. One end of the first tube is movably sleeved on the storage tube, the first bending part is arranged at one end of the first tube, and the second bending part is arranged at one end of the second tube. The first bending part is hinged to the second bending part.

4. A telescopic and bendable pull rod as claimed in claim 3, characterized in that: The first bending member is provided with a protrusion extending to one side, the second bending member is provided with a concave position matched with the protrusion, and a rotating shaft is provided in the middle of the protrusion and the concave position.

5. The telescopic and bendable pull rod according to claim 3, characterized in that: The telescopic tube set comprises a first telescopic tube, the outer diameter of the first telescopic tube is adapted to the inner diameter of the bending tube, and one end of the first telescopic tube is movably sleeved in the bending tube.

6. A telescopic and bendable pull rod as claimed in claim 5, characterized in that: The telescopic tube set includes a second telescopic tube, the outer diameter of the second telescopic tube is matched with the inner diameter of the first telescopic tube, and one end of the second telescopic tube is movably sleeved in the first telescopic tube.

7. A telescopic and bendable pull rod according to claim 6, characterized in that: The lengths of the first telescopic tube and the second telescopic tube are both less than or equal to the length of the second tube, and the length of the bent tube is less than or equal to the length of the storage tube.

8. The telescopic and bendable pull rod according to claim 6, characterized in that: The first locking unit is provided between the bending tube and the storage tube, and the second locking unit is provided between the bending tube and the storage tube, between the bending tube and the first telescopic tube, and between the first telescopic tube and the second telescopic tube.

9. The telescopic and bendable pull rod according to claim 8, characterized in that: The first locking unit and the second locking unit both include a locking pin and a limiting hole. The locking pin is in a locked state when inserted into the limiting hole. The control unit can drive the locking pin to disengage from the limiting hole.

10. A bag, comprising a retractable and bendable pull rod according to any one of claims 1 to 9, characterized in that: It comprises a base, the storage tube is fixed on the base, and a pulley is arranged on the bottom surface of the base.

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