Draw-bar box draw bar
By using a flexible soft rubber ball head and positioning hole in conjunction with an inner and outer tube structure design, the sticking noise and handle operation requirements of the suitcase handle during extension and retraction are solved, achieving a quiet and convenient extension and retraction function and improving the user experience.
Patent Information
- Application Number
- CN202520440569.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing suitcase handle makes a clicking sound when it is extended or retracted, and it requires a handle to operate to extend or retract.
Design a trolley handle that uses a flexible soft rubber ball head that fits into a positioning hole. The inner and outer tubes are connected through process holes and side holes. A soft rubber column and a bent plate are provided between the outer tubes to enable axial movement of the inner tube. The inner and outer tubes are square tubes to restrict circumferential rotation. The process holes and groove protrusions enable silent operation and extension without the need for a handle.
It achieves a smooth, silent extension and retraction effect, and the extension and retraction of the lever can be achieved without the need for a handle. It is fully functional and highly practical.
Smart Images

Figure CN223667459U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of luggage accessories, more particularly, it relates to a trolley case trolley. BACKGROUND
[0002] The trolley assembled on the trolley case has the function of stretching out and drawing back. The stretching out and drawing back trolley assembly has a built-in control mechanism, which can be controlled on the handle to realize the stretching out and drawing back of the trolley. However, this kind of stretching out and drawing back trolley still has the following shortcomings: 1. During the stretching out and drawing back adjustment, there is a jamming sound; 2. The stretching out and drawing back of the trolley can only be realized by controlling the handle. Accordingly, the utility model provides a trolley case trolley. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the defects of the prior art, and provides a trolley case trolley, which has the characteristics of convenient stretching out and drawing back and silence.
[0004] To solve the above technical problems, the utility model aims at realizing the following: the utility model relates to a trolley case trolley, which comprises a handle, two inner tubes arranged in a left-right symmetrical manner are arranged on the handle, the inner tubes extend upwards and downwards, an outer tube axially moving relative to each inner tube is sleeved on each inner tube, a front panel is connected between the outer tubes, a row of process holes arranged upwards and downwards is formed in the front panel, the distance between two adjacent process holes is equal, a row of positioning holes arranged equidistantly along the axial direction is formed in the tube wall of the inner tube, a side hole extending along the axial direction is formed in the tube wall of the outer tube, a soft rubber column extending leftward and rightward is arranged behind the front panel, ball head portions extending into the side hole are arranged at the two ends of the soft rubber column respectively, the ball head portions are embedded in the positioning holes, and a bending plate is arranged in the process hole and is curled on the soft rubber column to fix the soft rubber column, the distance between two adjacent process holes is equal to the distance between two adjacent positioning holes.
[0005] The utility model is further provided as follows: the rear panel is further connected between the outer tubes, and the soft rubber column is arranged between the front panel and the rear panel.
[0006] The utility model is further provided as follows: the inner tube and the outer tube are both square tubes.
[0007] The utility model is further provided as follows: a groove pressed on the front panel is arranged on the left side and / or the right side of each process hole, a protrusion integrated with the front panel is formed behind the groove, and the protrusion is pressed into the soft rubber column.
[0008] The utility model is further provided as follows: the soft rubber column is made of rubber material.
[0009] In summary, the utility model has the following beneficial effects:
[0010] 1. The limiting position is contacted by the flexible soft rubber ball head and the positioning hole, so that when the inner tube is axially adjusted relative to the outer tube, there is no jamming and abnormal sound, and the mute effect is better.
[0011] 2. Without operating at the handle, the extension and shortening of the pull rod can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 is the overall structure schematic diagram of the utility model;
[0013] Fig. 2 is the partial structure schematic diagram of the utility model;
[0014] Fig. 3 is the local structure schematic diagram of the utility model. DETAILED DESCRIPTION
[0015] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model is described below in combination with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, and are not the limitation of the utility model patent claims. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary technical personnel in the art without creative labor belong to the protection scope of the utility model.
[0016] The utility model is further illustrated below in combination with the drawings and the preferred embodiments.
[0017] Embodiment 1
[0018] Referring to Figs. 1 to 3 , the pull rod box pull rod related in the embodiment includes handle 1, is equipped with two left and right symmetrical arrangement inner tube 2 on handle 1, and inner tube 2 extends upwards and downwards, and every inner tube 2 is all set with the outer tube 3 of relative axial movement, and the front panel 4 is connected between outer tube 3, and the process hole 5 of being arranged upwards is set on the front panel 4, and the interval between adjacent two process holes 5 is equal, and the pipe wall of inner tube 2 is set with the positioning hole 6 of being arranged equidistantly along the axial direction, and the pipe wall of outer tube 3 is set with the side hole 7 of being extended along the axial direction, and the soft rubber column 8 of being extended left and right is provided at the rear of front panel 4, and the ball head part 81 of being inserted into side hole is respectively provided at both ends of soft rubber column 8, and ball head part 81 is embedded in a positioning hole 6, and the bending plate 9 of being curled on soft rubber column and making soft rubber column keep fixed is provided in process hole 5, and the interval between adjacent two process holes 5 is equal to the interval between adjacent two positioning holes 6.
[0019] Further, the rear panel 10 is further connected between outer tube 3, and the soft rubber column 8 is arranged between front panel 4 and rear panel 10.
[0020] Further, the soft rubber column 8 is made of rubber material.
[0021] In the embodiment, the inner tube 2 is axially moved relative to the outer tube 3 to change the positioning hole 6 in which the ball head 81 is embedded, so as to realize the positioning function of the extended or shortened position of the pull rod.
[0022] The bending plate 9 is formed by cold pressing through the process hole 5, and the soft rubber column 8 is fixed by the bending plate 9.
[0023] Embodiment 2
[0024] Referring to Figs. 1 to 3 As shown in the figure, the pull rod of the pull rod box of the embodiment is further provided with square tubes of the inner tube 2 and the outer tube 3 on the basis of the embodiment 1.
[0025] In the embodiment, the inner tube 2 and the outer tube 3 are provided with square tube structures, so that the circumferential rotation of the inner tube 2 relative to the outer tube 3 is limited, and the circumferential positioning function is realized, and the inner tube 2 and the outer tube 3 are convenient to disassemble and assemble.
[0026] Embodiment 3
[0027] Referring to Figs. 1 to 3 As shown in the figure, the pull rod of the pull rod box of the embodiment is further provided with a recess (not shown) on the left side and / or the right side of each process hole 5 on the basis of the embodiment 1, and the recess is pressed on the front panel 4. The rear of the recess forms a protrusion (not shown) which is integrated with the front panel 4, and the protrusion is pressed into the soft rubber column 8.
[0028] In the embodiment, the protrusion formed on the front panel 4 is used for the axial limiting function of the soft rubber column 8.
[0029] The pull rod of the pull rod box of the utility model relates to the pull rod, the limiting position of the pull rod is contacted by the flexible soft rubber ball head and the positioning hole, when the inner tube is axially adjusted relative to the outer tube, there is no jamming abnormal sound, the mute effect is better, and the elongation and the shortening of the pull rod can be realized without operation at the handle, the overall function is perfect, and the practicality is strong.
[0030] Unless otherwise defined, all terms used in the disclosure, such as "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, are to be interpreted, unless otherwise indicated, in the case in which they are used in the present disclosure, based on the actual shown orientation or position relationship, only for the convenience of describing the present disclosure and simplifying the description, and therefore the orientation or position relationship described in the present disclosure is only used for exemplary description, and cannot be understood as a limitation on the present patent. The orientation or position relationship described in the present disclosure is only used for exemplary description, and cannot be understood as a limitation on the present patent. For those skilled in the art, the specific meaning of the above terms can be understood in combination with the embodiments and according to the specific circumstances.
[0031] Unless otherwise specified and limited, in the present disclosure, the terms "provided", "connected" and "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.
[0032] The above describes the preferred embodiments of the present disclosure in detail. It should be understood that those skilled in the art can make many modifications and changes to the present disclosure without creative labor. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the present disclosure shall be within the scope of protection determined by the claims.
Claims
1. A trolley for a trolley case, comprising a handle, the handle having two inner tubes arranged in left and right symmetry, the inner tubes extending upward and downward, characterized in that: Each of the inner tubes is sleeved with an outer tube moving axially relative to the inner tube, the outer tubes are connected with a front panel, the front panel is provided with a row of process holes arranged in up and down direction, the interval between two adjacent process holes is equal, the wall of the inner tube is provided with a row of positioning holes arranged equidistantly along the axial direction, the wall of the outer tube is provided with a side hole extending along the axial direction, the rear of the front panel is provided with a soft rubber column extending left and right, the two ends of the soft rubber column are respectively provided with a ball head part extending into the side hole, the ball head part is embedded in a positioning hole, the process hole is provided with a bending plate curled on the soft rubber column and fixing the soft rubber column, the interval between two adjacent process holes is equal to the interval between two adjacent positioning holes.
2. The trolley according to claim 1, wherein: The rear panel is further connected between the outer tubes, and the soft rubber column is arranged between the front panel and the rear panel.
3. The trolley according to claim 1 or 2, wherein: The inner tube and the outer tube are both square tubes.
4. The trolley according to claim 3, wherein: The left side and / or the right side of each process hole is respectively provided with a groove pressed on the front panel, the rear of the groove forms a protrusion integrated with the front panel, and the protrusion is pressed into the soft rubber column.
5. The trolley according to claim 1, wherein: The soft rubber column is made of rubber material.