Pull rod armrest device, pull rod container and luggage case
By designing a combined suspension structure of groove structure and raised structure on the tie rod handrail device, the problems of unstable suspension and easy bending during load bearing in the prior art are solved, and the suspension and load bearing functions with higher loads are achieved.
Patent Information
- Application Number
- CN202510071415.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-04-15
AI Technical Summary
Existing pull rod handrail devices are difficult to effectively suspend objects and are prone to lateral bending or hooking fall off when bearing loads.
A tie rod handrail device is designed, adopting a combined suspension structure of groove structure and projection structure. Through the cooperation of inclined and arc-shaped parts, the pressure of the suspension structure is transmitted to the tie rod to ensure that the handrail can withstand greater load.
It realizes the function of effectively hanging objects and bearing large loads without affecting the feel of holding, avoiding the problems of lateral bending and hook falling off.
Smart Images
Figure CN119817909A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of handles, and in particular to a pull rod handrail device, a pull rod container and a luggage case. Background Art
[0002] In some movable containers, in order to facilitate users to move the containers, handrails for users to grasp may be provided. In order to adapt to the height or usage habits of users, the handrails may be retractable, such as retractable pull rod handrails. In some related embodiments, considering the gripping feel, the pull rod handrail has a rounded surface linear structure, which makes it difficult to hang objects. In other related embodiments, an independent hook is added to the pull rod handrail, but this type of hook affects the gripping feel, and this type of hook is prone to lateral bending relative to the pull rod handrail or even falling off the pull rod handrail when bearing weight. Summary of the invention
[0003] One or more embodiments of the present specification provide a pull rod handrail device, comprising: two pull rods arranged along a first direction, and a handrail connecting the two pull rods arranged along a second direction; the handrail has a gripping structure and a hanging structure arranged on at least one side of the gripping structure, the hanging structure comprises a groove structure and a protrusion structure connected to each other, the protrusion structure is located on the side of the handrail, and the groove structure is connected to the protrusion structure; the projection range of the groove structure in the second direction at least partially overlaps with the projection range of the pull rod in the second direction, and the groove structure at least comprises: an inclined portion and an arc portion connected to each other; the inclined portion is inclined relative to the second direction, and the inclined portion is configured to: when the suspended structure of the suspended object contacts the inclined portion, at least a part of the suspended structure is guided to the arc portion based on the inclined portion; the arc portion is configured to: when the suspended structure applies pressure to the arc portion due to the gravity of the suspended object, the direction of the pressure has an angle with the first direction and points away from the center of the handrail.
[0004] In some embodiments, the inclined portion includes a first end and a second end, the height of the first end in the first direction is greater than the height of the second end in the first direction, and the second end is connected to the inclined portion.
[0005] In some embodiments, the groove structure further includes: a vertical portion, the vertical portion is connected to the arc portion, the arc portion is located between the inclined portion and the vertical portion, and the vertical portion is provided by the side wall of the protruding structure.
[0006] In some embodiments, the groove structure further includes: a first chamfered portion connected to the inclined portion and a second chamfered portion connected to the vertical portion.
[0007] In some embodiments, a height of the protruding structure in the first direction is greater than a height of the holding structure in the first direction.
[0008] In some embodiments, a width of an upper portion of the protruding structure in a third direction is greater than a width of a lower portion of the protruding structure in the third direction, and the third direction is perpendicular to the first direction and the second direction.
[0009] In some embodiments, the handrail includes a first part connecting the two pull rods and a second part fixed above the first part, the second part covers the upper surface of the first part and a part of both sides of the first part; the upper part of the second part forms the suspension structure.
[0010] In some embodiments, two tie rod connecting parts are formed at the lower part of the first part, respectively used to connect the two tie rods.
[0011] In some embodiments, a parting line is provided between the second portion and the first portion, and the parting line includes a straight line portion in the middle and arc line portions on both sides of the straight line portion.
[0012] In some embodiments, the minimum distance from the inclined portion to the parting line in the first direction is not less than 1 / 2 of the minimum distance from the holding structure to the parting line in the first direction; the minimum distance from the arc portion to the parting line in the first direction is not less than 1 / 2 of the minimum distance from the holding structure to the parting line in the first direction.
[0013] In some embodiments, the first part and the second part together form a containing space, and a button mechanism is disposed inside the containing space; a portion of a button of the button mechanism protrudes from the second part.
[0014] In some embodiments, the first part and the second part are fixedly connected by one or more fasteners; a positioning hole is provided in one of the first part and the second part, and a first positioning column is provided in the other of the first part and the second part, and the fastener passes through the positioning hole and is fixedly connected to the first positioning column; the first positioning column is located in the accommodating space, and the first positioning column abuts against an inner wall of one of the first part and the second part.
[0015] In some embodiments, the first part and the second part together form an accommodating space; the first part is provided with a positioning boss, the second part is provided with a second positioning column, and the second positioning column abuts against the positioning boss; the range of the projection of the second positioning column in the second direction is located inside the range of the projection of the pull rod in the second direction.
[0016] In some embodiments, the side walls of the armrest on both sides in the second direction are arranged in an arc shape; the side walls of the armrest on both sides in the third direction are arranged in an arc shape, and the third direction is perpendicular to the first direction and the second direction.
[0017] In some embodiments, a range of a projection of the groove structure in the second direction is located inside a range of a projection of the pull rod in the second direction.
[0018] In some embodiments, the width of the holding structure in the second direction is 130-150 mm; the depth of the groove structure in the first direction is 7-9 mm; and the width of the groove structure in the second direction is 11-13 mm.
[0019] In some embodiments, a suspension structure is provided on each side of the holding structure of the armrest.
[0020] One or more embodiments of the present specification provide a pull rod container, comprising a container and any one of the pull rod handrail devices described above.
[0021] In some embodiments, it also includes: a tie rod base support provided at the lower part of the container, a tie rod plate provided at the upper part of the container, and a tie rod tube provided between the tie rod base support and the tie rod plate; a portion of the tie rod of the tie rod handrail device is slidably provided in the tie rod tube.
[0022] One or more embodiments of the present specification provide a suitcase, comprising any one of the above-mentioned pull rod armrest devices. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] This specification will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. The same numbers in the drawings represent the same structures or steps.
[0024] Figure 1 It is a schematic diagram of a pull rod handrail device according to some embodiments of the present specification.
[0025] Figure 2 It is a schematic diagram of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0026] Figure 3It is a schematic side view of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0027] Figure 4 , Figure 5 It is a three-dimensional schematic diagram of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0028] Figure 6 It is a cross-sectional schematic diagram of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0029] Figure 7 It is an enlarged schematic diagram of the groove structure and the protrusion structure of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0030] Figure 8 Schematic diagram of the second part of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0031] Fig. 9 1 is a schematic side view of the second portion of the handrail of the pull rod handrail device shown in some embodiments of the present specification.
[0032] Fig.10 1 is a schematic top view of the second part of the handrail of the pull rod handrail device shown in some embodiments of the present specification.
[0033] Fig.11 , Fig.12 It is a three-dimensional schematic diagram of the second part of the handrail of the pull rod handrail device shown in some embodiments of this specification.
[0034] Fig.13 It is a schematic diagram of the handrail of the pull rod handrail device shown in other embodiments of this specification.
[0035] Fig.14 It is a schematic diagram of a tie rod container according to some embodiments of the present specification.
[0036] Fig.15 It is a schematic diagram of the assembly of the pull rod handrail device and the pull rod tube shown in some embodiments of this specification.
[0037] Figures 16 to 19 It is a force diagram of the groove structure of the pull rod handrail device shown in some embodiments of this specification.
[0038] Markings in the figure: 100 pull rod handrail device; 10 pull rod; 20 handrail; 30 suspended structure; 21 first part; 211 pull rod connecting part; 22 second part; 3 holding structure; 4 hanging structure; 41 groove structure; 42 convex structure; 51 first chamfered part; 52 inclined part; 53 arc-shaped part; 54 vertical part; 55 second chamfered part; 61 parting line; 611 straight part; 612 arc-shaped part; 7 button mechanism; 71 button; 81 container; 82 pull rod base; 83 pull rod plate; 84 pull rod tube; 85 backpack; 851 strap; 91 positioning hole; 92 first positioning column; 93 positioning boss; 94 second positioning column. DETAILED DESCRIPTION
[0039] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the contents described below are some examples or embodiments of this specification. For ordinary technicians in this field, without paying creative work, the technical solutions or means disclosed in this specification can also be applied to other scenarios based on these technical contents.
[0040] It should be understood that the "system", "device", "unit" and / or "module" used in this specification is a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.
[0041] Unless otherwise specified, technical terms used in this specification to describe components, elements, etc. do not refer to the singular, but may also include the plural. Generally speaking, terms such as "include", "comprise", etc. only indicate that the steps, elements, or components that have been clearly identified are included, and these steps, elements, and components do not constitute an exclusive list, such as the method or device described may also include other steps or components.
[0042] It should be understood that the coordinate system involved in this specification is mainly used to help understand the relative position relationship of each component, rather than the absolute position of each component in space. The coordinate system (such as the XYZ coordinate system) involved in this specification can be a three-dimensional rectangular coordinate system or a three-dimensional oblique coordinate system.
[0043] In some movable containers, in order to facilitate the user to move the container, a handrail for the user to grasp may be provided. In some embodiments, in order to adapt to the height or usage habits of the user, the handrail may be of a retractable design, such as a retractable pull rod handrail. In some embodiments, the retractable pull rod handrail may include a pull rod tube fixedly connected to the container, and a pull rod retractably connected and relatively fixed relative to the pull rod tube, and the handrail is fixed on the pull rod, thereby allowing the user to adjust the height of the handrail relative to the container, and allowing the user to store the pull rod inside the pull rod tube to save storage space.
[0044] In some embodiments, the movable container may include an open or semi-open container, such as a flatbed trailer, a transfer box, etc., and may also include a closed container, such as a school bag, a suitcase, etc. In some cases, the user may have a need to temporarily hang objects on the pull rod armrest. In some related embodiments, considering the grip feel, the pull rod armrest has a rounded surface linear structure, which makes it difficult to hang objects. In other related embodiments, an independent hook is installed on the pull rod armrest, however, this type of hook affects the grip feel, and this type of hook is prone to lateral bending relative to the pull rod armrest when bearing weight or even falls off the pull rod armrest.
[0045] Based on this, a pull rod handrail device is provided in one or more embodiments of the present specification, which meets the user's hanging needs by providing a groove structure for hanging objects on the pull rod handrail, and the design of the groove structure enables the pull rod handrail as a whole to bear a larger weight without deformation or falling off.
[0046] Figure 1 is a schematic diagram of a pull rod handrail device according to some embodiments of this specification, Figure 2 Schematic diagram of the handrail of the pull rod handrail device according to some embodiments of this specification. Figure 1 , Figure 2 , and combined with Figures 3 to 7As shown, in one or more embodiments of the present specification, the rod armrest device may include: two rods 10 arranged along a first direction, and an armrest 20 connecting the two rods 10 arranged along a second direction. In some embodiments, the first direction may be the extension direction or the pull-out direction of the rod 10, such as the Y-axis direction in the figure, and the second direction may be the extension direction of the armrest 20, such as the X-axis direction in the figure. In some embodiments, the extension direction of the armrest 20 may be perpendicular to the extension direction of the rod 10, that is, the X-axis direction is perpendicular to the Y-axis direction. In other embodiments, the extension direction of the armrest 20 may not be perpendicular to the extension direction of the rod 10, for example, the X-axis direction and the Y-axis direction have an angle that is not 0° and not 90°, and the armrest 20 may be slightly tilted to adapt to the angle of human body holding. In some embodiments, the rod 10 may be fixedly connected to the armrest 20 by fasteners (such as bolts, etc.), or may be welded, riveted or integrally formed.
[0047] In some embodiments, the armrest 20 has a gripping structure 3 and a suspension structure 4 disposed on at least one side of the gripping structure 3. The suspension structure 4 includes a groove structure 41 and a protrusion structure 42 connected to each other. The protrusion structure 42 is located on the side of the armrest 20, and the groove structure 41 is connected to the protrusion structure 42. In some embodiments, the gripping structure 3 of the armrest 20 extends in the X-axis direction, and one end of the gripping structure 3 is recessed downward to form the groove structure 41. In some embodiments, see Figure 1 , Figure 2 As shown, the bottom of the groove structure 41 is lower than the upper surface of the gripping structure 3 in the X-axis direction. In some embodiments, the end of the groove structure 41 (for example Figure 1 , Figure 2 The left end of the groove structure 41 in the embodiment of the present invention extends upward to form a protrusion structure 42.
[0048] In some embodiments, the groove structure 41 provides a hanging position for a hanging structure (such as a bag handle, rope, chain, etc.) of a hanging object (such as a bag containing contents, etc.). In some embodiments, the protrusion structure 42 can be used to prevent the hanging structure from escaping from the groove structure 41.
[0049] In some embodiments, the projection range of the groove structure 41 in the second direction at least partially overlaps with the projection range of the tie rod 10 in the second direction, so as to transfer the pressure (load) borne by the groove structure 41 to the tie rod 10. In some embodiments, the projection range of the groove structure 41 in the second direction may be located inside the projection range of the tie rod 10 in the second direction, so that the component force of the pressure borne by the groove structure 41 in the second direction can be directly transferred to the tie rod 10, rather than being borne by the structural strength of the handrail 20 itself. In some embodiments, the concave direction of the groove structure 41 may be directly opposite to the tie rod 10.
[0050] In some related embodiments, the groove structure is arranged in the middle of the handrail instead of being located at the pull rod. The component of the pressure borne by the groove structure in the first direction (i.e., the component in the X-axis direction, or lateral force) is borne by the side wall of the groove structure, and the component of the pressure borne by the groove structure in the second direction (i.e., the component in the Y-axis direction, or positive pressure) is borne by the bottom of the groove structure. At this time, the groove structure resists the component of the pressure in the second direction through the rigidity of the material of the handrail itself. The component in the second direction will cause the handrail to bend downward, which is easy to cause damage to the handrail when the hanging weight is large. In one or more embodiments of the present specification, the groove structure 41 transmits the component of the force in the second direction to the pull rod 10, and the middle part of the handrail 20 does not bear pressure, so it will not cause deformation and damage to the middle part of the handrail 20, while the side of the handrail is effectively supported by the pull rod 10 and can withstand a larger load.
[0051] In some embodiments, the groove structure 41 includes at least: an inclined portion 52 and an arc portion 53 connected to each other, and the inclined portion 52 is disposed adjacent to the arc portion 53. Figure 1 , Figure 2 ,as well as Figure 7 As shown, the inclined portion 52 is closer to the grip portion 3 than the arc portion 53, and the arc portion 53 is located at the outer side of the armrest 20 relative to the inclined portion 52 (for example, Figure 1 , Figure 2 In some embodiments, the range of the projection of the inclined portion 52 and the arc-shaped portion 53 in the second direction may at least partially overlap with the range of the projection of the pull rod 10 in the second direction, so that at least a part of the component of the pressure borne by the inclined portion 52 and / or the arc-shaped portion 53 in the second direction can be transmitted to the pull rod 10. In other embodiments, the range of the projection of the inclined portion 52 and the arc-shaped portion 53 in the second direction may be within the range of the projection of the pull rod 10 in the second direction, so that the component of the pressure borne by the inclined portion 52 and / or the arc-shaped portion 53 in the second direction can be transmitted to the pull rod 10.
[0052] In one or more embodiments of the present specification, the inclined portion 52 is inclined relative to the second direction, for example, the inclined portion 52 has an angle of not 0° and not 90° relative to the X-axis direction. In some embodiments, the inclined portion 52 is configured to: when the suspended structure of the suspended object contacts the inclined portion 52, at least a portion of the suspended structure is guided to the arc portion 53 based on the inclined portion 52.
[0053] For example, see Fig.16As shown, the diameter of the suspended structure 30, such as the handle, is relatively small. Specifically, for example, the diameter of the suspended structure 30 is smaller than the width of the inclined portion 52. When the suspended structure 30 is suspended in the groove structure 41, the suspended structure 30 slides downward along the inclined direction of the inclined portion 52 into the arc-shaped portion 53.
[0054] Exemplarily, the diameter of the suspended structure 30, such as a handle, is relatively large. Specifically, for example, the diameter of the suspended structure 30 is greater than the width of the inclined portion 52. When the suspended structure 30 is suspended in the groove structure 41, based on the inclined setting of the inclined portion 52, the suspended structure 30 has a tendency to move toward the arc-shaped portion 53.
[0055] In some embodiments, if the suspended structure 30 is flexible, see Fig.17 As shown, a portion of the handle is deformed and enters the arc portion 53, contacts and fits with part or all of the arc portion 53, and applies force to the arc portion 53 at one or more locations of the fit, or further applies force to the inclined portion 52 at the same time.
[0056] In some embodiments, if the suspended structure 30 is rigid, see Fig.18 , Fig.19 As shown, one side of the cross section of the suspended structure 30 contacts the arc portion 53 (as shown in FIG. Fig.18 ) or with the raised structure 42 (such as Fig.19 ) while the other side of the cross section of the suspended structure 30 is in contact with the inclined portion 52, and force is applied to the arc-shaped portion 53 and the inclined portion 52.
[0057] In one or more embodiments of the present specification, the arc portion 53 is configured such that when the suspended structure 30 applies pressure to the arc portion 53 due to the gravity of the suspended object, the direction of the pressure has an angle with the first direction and points away from the center of the handrail 20. In some embodiments, the angle is an acute angle.
[0058] In some embodiments, see Figures 16 to 19 As shown, force F1 is the pressure applied by the suspended structure 30 to the arcuate portion 53, force F2 is the pressure applied by the suspended structure 30 to the inclined portion 52, and force F3 is the pressure applied by the suspended structure 30 to the side wall of the protruding structure 42. The arrows of force F1, force F2, and force F3 indicate the directions of the respective pressures. In some embodiments, the arcuate portion 53 cooperates with the inclined portion 52 so that most of the pressure provided by the suspended structure 30 is converted into a component force in the first direction and transmitted to the pull rod 10.
[0059] In some embodiments, the inclined portion 52 and the arc portion 53 are respectively located on both sides of the center of the groove structure 41. In other words, the inclined portion 52 is located on one side of the bottom of the groove structure 41 (for example Figure 7The arc portion 53 is located on the other side of the bottom of the groove structure 41 (eg Figure 7 In some embodiments, see Figure 2 As shown by the dotted lines in the figure, the dotted line aa' on the right side roughly shows the center position of the groove structure 41, and the dotted line bb' on the left side roughly shows the center position of the pull rod 10. In some embodiments, the center of the groove structure 41 is offset relative to the center of the pull rod 10, so that the entire arc portion 53 can be directly opposite to the center of the pull rod 10. In some working environments, the load is most likely to be guided to the arc portion 53 through the inclined portion 52, and is decomposed into a smaller component force in the second direction and a larger component force in the first direction. Therefore, the solution that the arc portion 53 is directly opposite to the center of the pull rod 10 can enable the pull rod 10 to better bear the load.
[0060] In some embodiments, the inclined portion 52 includes a first end (eg, Figure 7 The right end of the second end (e.g. Figure 7 The left end of the first end in the first direction is greater than the height of the second end in the first direction, and the second end of the inclined portion 52 is connected to the inclined portion 53. In some embodiments, the inclined portion 52 can be a curved surface or a spatial curved surface. In some embodiments, the inclined portion 52 is perpendicular to the first direction and the second direction in a third direction (for example, Figure 4 , Figure 5 The Z-axis direction is Figure 1 , Figure 2 In some other embodiments, the projected profile line of the inclined portion 52 in the third direction may be a curve, such as a concave arc, a convex arc, a wavy line or an irregular arc.
[0061] In some embodiments, the arc portion 53 includes a third end (eg Figure 7 ) and the fourth end (e.g. Figure 7 ), the height of the third end in the first direction is greater than the height of the fourth end in the first direction, and the fourth end of the arc portion 53 is connected to the second end of the inclined portion 52. In some embodiments, the fourth end of the arc portion 53 and the second end of the inclined portion 52 are the lowest point of the groove structure in the first direction. In some embodiments, the suspended structure can fall into the lowest point, so that the inclined portion 52 and the arc portion 53 can simultaneously withstand the forces applied by the two sides of the suspended structure, thereby increasing the force bearing area and reducing the pressure, and improving the load bearing capacity of the inclined portion 52 and the arc portion 53.
[0062] In some embodiments, see Figure 7As shown, the groove structure 41 further includes a vertical portion 54. The vertical portion 54 is connected to the arc portion 53, the arc portion 53 is located between the inclined portion 52 and the vertical portion 54, and the vertical portion 54 is provided by the side wall of the protruding structure 42. In some embodiments, the vertical portion 54 can be used to prevent the suspended structure from detaching from the groove structure 41, and in some cases bear the component force of the suspended structure in the second direction.
[0063] In some embodiments, see Figure 7 As shown, the groove structure 41 further includes: a first chamfered portion 51 connected to the inclined portion 52 and a second chamfered portion 55 connected to the vertical portion 54. In some embodiments, the first chamfered portion 51 and the second chamfered portion 54 are used to smooth the curve near the groove to obtain a good grip feel. In some embodiments, the first chamfered portion 51 and the second chamfered portion 54 can better disperse the force to allow the armrest 20 to carry a larger weight.
[0064] In some embodiments, the height of the protruding structure 42 in the first direction is greater than the height of the gripping structure 3 in the first direction, for example, the upper surface of the protruding structure 42 protrudes from the upper surface of the gripping structure 3. In some embodiments, the higher design of the protruding structure 42 allows the suspended structure to be stacked in the groove structure 41. In some embodiments, the higher design of the protruding structure 42 also allows the groove structure 41 to accommodate a suspended structure with a larger size and / or a heavier weight. In some embodiments where the suspended structure is flexible, the higher design of the protruding structure 42 allows it to have more contact surface with the suspended structure to withstand less lateral pressure.
[0065] In some embodiments, see Figure 3 As shown, the width of the upper part of the protrusion structure 42 in the third direction (for example, the Z-axis direction) is greater than the width of the lower part of the protrusion structure 42 in the third direction. The third direction is perpendicular to the first direction and the second direction. In some embodiments, the profiles of the protrusion structure 42 on both sides in the third direction have a characteristic of gradually narrowing upwards, so that the object can smoothly fall into the bottom of the groove structure 41 when hanging without being blocked by the protrusion structure 42. In some embodiments, as Figure 3 As shown, the protruding structure 42 in the third direction may be a mirror-symmetric structure along the axis of the first direction (eg, the Y-axis direction). In some embodiments, the profiles on both sides of the protruding structure 42 in the third direction may be concave arcs concave toward the central axis of the protruding structure 42 in the third direction.
[0066] In some embodiments, the maximum width of the protrusion structure 42 in the third direction is smaller than the maximum width of the gripping structure 3 in the third direction. In some embodiments, the maximum width of the groove structure 41 in the third direction is smaller than the maximum width of the gripping structure 3 in the third direction. In some embodiments, due to the downward gravity provided by the suspended object, the suspended structure tends to enter a position with a lower height (e.g., position in the Y-axis direction) and a narrower size (e.g., width in the Z-axis direction) along the wider, smooth gripping structure 3. The protrusion structure 42 and the groove structure 41 with a smaller width in the third direction allow the suspended structure to remain in this position without sliding to the gripping structure 3 due to vibrations generated by dragging the container.
[0067] In one or more embodiments of this specification, see Figure 1 , Figure 2 As shown, the handrail 20 includes a first portion 21 connecting two pull rods 10 and a second portion 22 fixed above the first portion 21, the second portion 22 covers the upper surface of the first portion 21 and a portion of both sides of the first portion 21, wherein a suspension structure 4 is formed on the upper portion of the second portion 22. In some embodiments, the second portion 22 is an n-shaped structure.
[0068] In some embodiments, the first portion 21 and the second portion 22 are integrally injection molded so that both have greater strength.
[0069] In some embodiments, two tie rod connecting portions 211 are formed at the lower portion of the first portion 21 , respectively used to connect two tie rods 10 .
[0070] In some embodiments, see Figure 1 , Figure 2 As shown, combined Figures 8 to 12 As shown, there is a parting line 61 between the second portion 22 and the first portion 21, and the parting line 61 includes: a straight portion 611 located in the middle and arc portions 612 located on both sides of the straight portion 611. In some embodiments, the second portion 22 covers a portion of both sides of the first portion 21 at the arc portions 612. In some embodiments, the second portion 22 can further completely cover both sides of the first portion 21.
[0071] In some embodiments, the arc portion 612 extends from a first direction (e.g., the Y-axis direction) toward a second direction (e.g., the X-axis direction) so that when the second portion 22 is connected to the first portion 21, the first portion 21 can prevent the second portion 22 from being displaced in the X-axis direction, thereby preventing the second portion 22 from falling off relative to the first portion 21.
[0072] For example, see Figure 1As shown, when the suspended structure (such as the handle of a bag) is suspended inside the groove structure 41, the second part 22 is subjected to pressure directed to the lower left side, and the pressure is decomposed into a positive pressure downward along the Y-axis direction and a lateral force to the left along the X-axis direction. The positive pressure is borne by the pull rod 10 through the second part 22 and the first part 21, while the lateral force is borne based on the fixed connection between the second part 22 and the first part 21. In some embodiments, the first part 21 and the second part 22 can be fixedly connected by fasteners, and the lateral force is mainly borne by the fasteners (for example, the fasteners are arranged along the Y-axis direction and bear lateral shear forces). In some embodiments, the arc portion 612 of the parting line 61 also bears a part of the lateral force, thereby reducing the working pressure of the fasteners and improving the overall strength of the mechanism. For example, continue to refer to Figure 1 As shown, when the second part 22 has a direction under the action of the suspended structure, Figure 1 When there is a tendency for the second portion 22 to move to the left, the structure at the arc portion 612 on the right side of the second portion 22 is blocked by the corresponding position of the first portion 21, thereby resisting the movement tendency.
[0073] In one or more embodiments of the present specification, the minimum distance from the inclined portion 52 to the parting line 61 in the first direction is not less than 1 / 2 of the minimum distance from the gripping structure 3 to the parting line 61 in the first direction. In some embodiments, the minimum distance from the arc portion 53 to the parting line 61 in the first direction is not less than 1 / 2 of the minimum distance from the gripping structure 3 to the parting line 61 in the first direction. In some embodiments, the extension direction of the inclined portion 52 can be determined based on the extension direction of the parting line 61, for example, the inclined portion 52 can be parallel to a certain tangent of the arc portion 612 of the parting line 61, specifically, for example, a certain relatively gentle tangent of the arc portion 612. In some embodiments, the minimum distance between the inclined portion 52 and the arc portion 53 and the parting line 61 determines the narrowest portion of the second portion 22 in the first direction (Y-axis direction). In some embodiments, the width of the narrowest portion is controlled to be not less than the ratio of the width of the second portion 22 at the gripping structure 3 to control the overall strength of the second portion 22.
[0074] In one or more embodiments of this specification, see Figure 6 As shown, the first part 21 and the second part 22 enclose a receiving space, and a button mechanism 7 is disposed inside the receiving space. In some embodiments, a portion of a button 71 of the button mechanism 7 protrudes from the second part 22 in the first direction. In some embodiments, the pull rod 10 can be locked relative to other mechanisms by pressing the button 71, thereby allowing the user to pull out or put back the pull rod handrail.
[0075] In some embodiments, the first portion 21 and the second portion 22 are fixedly connected by one or more fasteners. In some embodiments, the fasteners may be threaded fasteners such as screws or bolts, or may be structures such as rivets. In some embodiments, the fasteners may be arranged along the second direction.
[0076] In some embodiments, one of the first part 21 and the second part 22 is provided with a positioning hole 91, and the other of the first part 21 and the second part 22 is provided with a first positioning column 92, and a fastener passes through the positioning hole 91 and is fixedly connected to the first positioning column 92 to achieve the connection between the first part 21 and the second part 22. In some embodiments, the first positioning column 92 is located in the accommodating space, and the first positioning column 92 abuts against the inner wall of one of the first part 21 and the second part 22. Exemplarily, the lower surface of the first part 21 is provided with a positioning hole 91, and the lower surface of the second part 22 extends downward to form the first positioning column 92, and the lower end of the first positioning column 92 abuts against the inner wall of the first part 21. In some embodiments, the cooperation between the first positioning column 92 and the inner wall of the first part 21 provides support for the accommodating space to protect other mechanisms inside the accommodating space. In some embodiments, the number of the first positioning columns 92 can include multiple.
[0077] In one or more embodiments of this specification, see Figure 6 As shown, the first part 21 is provided with a positioning boss 93, and the second part 22 is provided with a second positioning column 94, and the second positioning column 94 abuts against the positioning boss 93. In some embodiments, the projection range of the second positioning column 94 in the second direction is located inside the projection range of the pull rod 10 in the second direction.
[0078] In some embodiments, in order to arrange the button mechanism, the armrest 20 can be designed as a hollow structure. In some embodiments, in order to achieve the hollow structure and considering the aforementioned lateral force, the armrest 20 can be designed to be divided into upper and lower parts. In some embodiments, the first part 21 and the second part 22 of the armrest 20 can be thin-walled structures to provide a larger accommodation space. In some embodiments, in order to increase the strength of the first part 21 and the second part 22, reinforcing ribs can be configured on the inner walls of the first part 21 and the second part 22.
[0079] In some embodiments, the cooperation between the second positioning column 94 and the positioning boss 93 provides support for the accommodating space to protect other mechanisms inside the accommodating space.
[0080] In some embodiments, the second positioning column 94 is located at the protruding structure 42. In some embodiments, see Figure 6 As shown, the load borne by the groove structure 41 can be transferred to the positioning boss 93 through the second positioning column 94 adjacent thereto, thereby being transferred to the second portion 22 and further transferred to the pull rod 10 .
[0081] In some embodiments, a fastener for fastening the first portion 21 and the second portion 22 may be further disposed at the second positioning column 94 . In some embodiments, the fastener may penetrate the positioning boss 93 and be fastened to the second positioning column 94 .
[0082] In one or more embodiments of the present specification, the side walls of the armrest 20 on both sides in the second direction (e.g., the X-axis direction) are arranged in an arc shape. In some embodiments, the side walls of the armrest 20 on both sides in the third direction (e.g., the Z-axis direction) are arranged in an arc shape, and the third direction is perpendicular to the first direction and the second direction. In some embodiments, reference Fig.14 As shown, the drawbar handrail device 100 can provide support for a container (e.g. Fig.14 Another container (eg, Fig.14 In some embodiments, the backpack 85 may include a transverse limiting strap 851, and the limiting strap 851 is sleeved outside the pull rod handrail device 100 to achieve the limiting of the backpack 85, thereby allowing the backpack 85 to be placed on the suitcase 81 and to be dragged along with the suitcase 81.
[0083] In one or more embodiments of the present specification, the width of the grip structure 3 in the second direction is 130-150 mm. Exemplarily, the width of the grip structure in the second direction can be 130 mm, 132 mm, 135.8 mm, 140 mm, 140.5 mm, 143 mm, 144 mm, 147.8 mm, 150 mm. In some embodiments, the width of the grip structure 3 in the second direction matches the width of the palm, providing a good grip feel.
[0084] In some embodiments, the depth of the groove structure 41 in the first direction is 7-9 mm, for example 7.8-8.3 mm. Exemplarily, the depth of the groove structure 41 in the first direction can be 7.2 mm, 7.56 mm, 7.8 mm, 7.9 mm, 8.2 mm, 8.3 mm, 8.85 mm, 9 mm. In some embodiments, the greater depth of the groove structure 41 in the first direction enables the object to be suspended with good stability, preventing the suspended structure of the suspended object from falling out.
[0085] In some embodiments, the width of the groove structure 41 in the second direction is 11-13 mm, for example, 12-12.5 mm. Exemplarily, the width of the groove structure 41 in the second direction can be 11 mm, 11.2 mm, 11.5 mm, 11.88 mm, 12 mm, 12.3 mm, 12.46 mm, 12.5 mm, 12.8 mm, 13 mm. In some embodiments, the larger width of the groove structure 41 in the second direction allows the suspended structures of multiple suspended objects to be stacked, or allows a larger suspended structure to be suspended.
[0086] In one or more embodiments of the present specification, the lever armrest device can withstand a load of 3KG. In some embodiments, a 20-inch suitcase equipped with the lever armrest device provided in the present specification is used as a test object. The body of the suitcase is loaded with 15KG. A load of 1KG is applied to the suspension structure of the lever armrest device at a frequency of 15 times per minute through an oscillation impact tester. The force application position is selected as the inclined portion and / or the arc portion. The hook state is observed. 200 tests are performed under the above test conditions. No deformation or damage of the raised structure is observed, and no displacement or detachment of the second part relative to the first part is observed. In some embodiments, based on the above test conditions, the load is further increased to 2KG for 200 tests, and the test results are normal. In some embodiments, based on the above test conditions, the load is further increased to 3KG for 500 tests, and the test results are normal. It can be seen that the lever armrest device provided in the present specification can stably withstand a load of at least 3KG.
[0087] In some embodiments, the pull rod handrail device can further withstand a load of 5KG.
[0088] In one or more embodiments of this specification, see Fig.13 As shown, a suspension structure 4 is provided on each side of the gripping structure 3 of the armrest 20. In some embodiments, the two suspension structures 4 are arranged in mirror symmetry. In some embodiments, each of the two suspension structures 4 has the same structure and configuration as the suspension structure 4 described above.
[0089] In one or more embodiments of the present specification, a pull rod container is provided, which includes a container and the pull rod handrail device. In some embodiments, the container can be a flatbed trailer, a transfer box, a transfer frame, a storage box, a school bag, a suitcase (such as a pull rod box), a movable furniture (such as a table), a movable electrical appliance (such as a refrigerator), etc.
[0090] In some embodiments, see Fig.14 and Fig.15As shown, the tie rod container may specifically include a container (e.g., a suitcase 81), a tie rod bottom bracket 82 disposed at the lower portion of the suitcase 81, a tie rod large plate 83 disposed at the upper portion of the suitcase 81, and a tie rod tube 84 disposed between the tie rod bottom bracket 82 and the tie rod large plate 83. In some embodiments, a portion of the tie rod 10 of the tie rod handrail device is slidably disposed in the tie rod tube 84.
[0091] In one or more embodiments of the present specification, a suitcase is further provided, which includes the above-mentioned pull rod armrest device.
[0092] The beneficial effects that may be brought about by the embodiments of the present specification include but are not limited to: (1) a hanging structure is provided on the handrail to allow the user to hang objects on the hanging structure; (2) the hanging structure of the object to be hung is guided to the arc portion by the inclined portion, and the force direction is adjusted by the arc portion so that most of the force is borne by the pull rod rather than by the suspended part of the handrail; (3) a wider hanging position is provided by the arrangement of the inclined portion and the arc portion, and a larger load can be borne; (4) the lateral force is borne by the protruding structure, and the force is dispersed by the first chamfered portion and the second chamfered portion to provide a stronger structural stability; (5) the second part is wrapped around the side of the first part by designing the parting line to assist in resisting the displacement effect of the lateral force on the second part; (6) the first positioning column and the second positioning column provide fixation of the first part and the second part, and support the accommodating space at the same time, so that the handrail as a whole has a higher strength; (7) the arrangement of the second positioning column allows the load of the groove structure to be transmitted to the first part through the second positioning column, rather than being transmitted to the first part through the farther side wall of the second part, which has better transmission efficiency and provides greater strength.
[0093] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are taught in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.
Claims
1. A pull rod handrail device, characterized in that: include: Two pull rods arranged along a first direction, and a handrail connecting the two pull rods arranged along a second direction; The armrest has a gripping structure and a hanging structure arranged on at least one side of the gripping structure, the hanging structure includes a groove structure and a protrusion structure connected to each other, the protrusion structure is located on the side of the armrest, and the groove structure is connected to the protrusion structure; The projection range of the groove structure in the second direction at least partially overlaps with the projection range of the pull rod in the second direction, and the groove structure at least includes: an inclined portion and an arc portion connected to each other; The inclined portion is inclined relative to the second direction, and the inclined portion is configured to: when a suspended structure of a suspended object contacts the inclined portion, guide at least a portion of the suspended structure to the arc portion based on the inclined portion; The arc portion is configured such that when the suspended structure applies pressure to the arc portion due to the gravity of the suspended object, the direction of the pressure has an angle with the first direction and points away from the center of the handrail.
2. The pull rod handrail device according to claim 1, characterized in that: The inclined portion includes a first end and a second end, the height of the first end in the first direction is greater than the height of the second end in the first direction, and the second end is connected to the inclined portion.
3. The pull rod handrail device according to claim 1 or 2, characterized in that: The groove structure further includes a vertical portion, the vertical portion is connected to the arc portion, the arc portion is located between the inclined portion and the vertical portion, and the vertical portion is provided by the side wall of the protruding structure.
4. The pull rod handrail device according to claim 3, characterized in that: The groove structure further includes: a first chamfered portion connected to the inclined portion and a second chamfered portion connected to the vertical portion.
5. The pull rod handrail device according to claim 1, characterized in that: A height of the protruding structure in the first direction is greater than a height of the holding structure in the first direction.
6. The pull rod handrail device according to claim 1, characterized in that: The width of the upper portion of the protruding structure in a third direction is greater than the width of the lower portion of the protruding structure in the third direction, and the third direction is perpendicular to the first direction and the second direction.
7. The pull rod handrail device according to claim 1, characterized in that: The handrail includes a first part connecting the two pull rods and a second part fixed above the first part, wherein the second part covers the upper surface of the first part and a part of both sides of the first part; The upper portion of the second part is formed with the hanging structure.
8. The pull rod handrail device according to claim 7, characterized in that: Two pull rod connecting parts are formed at the lower part of the first part, respectively used for connecting the two pull rods.
9. The pull rod handrail device according to claim 7, characterized in that: A parting line is provided between the second part and the first part, and the parting line comprises a straight line portion located in the middle and arc line portions located at both sides of the straight line portion.
10. The pull rod handrail device according to claim 9, characterized in that: The minimum distance between the inclined portion and the parting line in the first direction is not less than 1 / 2 of the minimum distance between the holding structure and the parting line in the first direction; The minimum distance from the arc portion to the parting line in the first direction is not less than 1 / 2 of the minimum distance from the holding structure to the parting line in the first direction.
11. The pull rod handrail device according to claim 7, characterized in that: The first part and the second part together form an accommodating space, and a button mechanism is provided inside the accommodating space; A portion of the button of the button mechanism is protruded from the second portion.
12. The pull rod handrail device according to claim 11, characterized in that: The first portion and the second portion are fixedly connected by one or more fasteners; One of the first part and the second part is provided with a positioning hole, the other of the first part and the second part is provided with a first positioning column, and the fastener passes through the positioning hole and is fixedly connected to the first positioning column; The first positioning column is located in the accommodating space, and the first positioning column abuts against an inner wall of one of the first part and the second part.
13. The pull rod handrail device according to claim 7, characterized in that: The first part and the second part together form an accommodating space; The first part is provided with a positioning boss, the second part is provided with a second positioning column, and the second positioning column abuts against the positioning boss; The projection range of the second positioning column in the second direction is located inside the projection range of the pull rod in the second direction.
14. The pull rod handrail device according to claim 1, characterized in that: The side walls of the handrail on both sides in the second direction are arranged in an arc shape; The side walls of the handrail on both sides in a third direction are arranged in an arc shape, and the third direction is perpendicular to the first direction and the second direction.
15. The pull rod handrail device according to claim 1, characterized in that: The projection range of the groove structure in the second direction is located inside the projection range of the pull rod in the second direction.
16. The pull rod handrail device according to claim 1, characterized in that: The width of the gripping structure in the second direction is 130-150 mm; The depth of the groove structure in the first direction is 7-9 mm; The width of the groove structure in the second direction is 11-13 mm.
17. The pull rod handrail device according to claim 1, characterized in that: A suspension structure is respectively provided on both sides of the holding structure of the armrest.
18. A tie rod container, characterized in that: The invention comprises a container and the pull rod handrail device according to any one of claims 1 to 17.
19. The tie rod container according to claim 18, characterized in that: include: A container, a tie rod bottom support provided at the lower part of the container, a tie rod large plate provided at the upper part of the container, and a tie rod tube provided between the tie rod bottom support and the tie rod large plate; A portion of the pull rod of the pull rod handrail device is slidably disposed in the pull rod tube.
20. A luggage case, characterized in that: A pull rod handrail device comprising any one of claims 1 to 17.