Built-in positioning pull rod for heat preservation
By setting electric heating wires in the handle and extended handle of the trolley case and controlling the power on and off through a trigger component, the problem of cold hands in cold winter environments is solved, and the effect of keeping hands warm in cold environments is achieved.
Patent Information
- Application Number
- CN202422096424.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-08-28
AI Technical Summary
When using a trolley case in a cold winter environment, the user's hands become cold due to holding the handle for a long time, resulting in a poor user experience.
A built-in heat preservation positioning pull rod is designed. By setting a heating wire in the handle and the extended handle, and controlling the power on and off of the heating wire through a trigger component, the heating wire is used to provide heat when needed to keep the hands warm.
In a cold environment, the heating wire starts to heat up after pressing the main switch, keeping your hands warm and improving the comfort and effectiveness of the pull rod.
Smart Images
Figure CN223298684U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of luggage cases, in particular to a built-in positioning pull rod for heat preservation. Background Art
[0002] Trolley cases are suitcases with a handle and wheels. They are widely used because of their convenience. Usually, a trolley case is equipped with a handle to facilitate dragging while walking and reduce the burden.
[0003] When using a trolley case in a cold winter environment, the user needs to hold the handle and drag the trolley case while walking. Due to the low ambient temperature in winter, the user's hands are exposed to the external environment when dragging the trolley case. If the trolley case is dragged for a long time, the user's hands will become cold, and the overall user experience will be poor.
[0004] For this purpose, we propose a positioning rod for built-in thermal insulation. Utility Model Content
[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a built-in positioning pull rod for heat preservation.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a positioning pull rod for built-in heat preservation, comprising a mounting sleeve, a movable sleeve movably mounted inside the mounting sleeve, an extension rod movably mounted inside the movable sleeve, a handle fixedly mounted on the extension rod, external sleeves fixedly mounted on both sides of the handle, an extension handle movably mounted inside the external sleeve, a positioning assembly provided between the external sleeve and the extension handle, heating wires provided inside the handle and the two extension handles, mounting boxes fixedly mounted inside the handle and the extension handle, a trigger assembly provided inside the mounting box, and a main switch fixedly mounted on the extension rod;
[0007] The trigger assembly includes an auxiliary switch, which is fixedly installed inside the installation box. The installation box is provided with an extrusion plate and an extrusion block.
[0008] Preferably, the positioning assembly includes positioning rings, two positioning rings are fixedly mounted on the external sleeve, and two anti-slip blocks are movably mounted on the extended handle.
[0009] Preferably, the interior of the positioning ring is communicated with the interior of the external sleeve, the anti-slip block is engaged with the positioning ring, and a recess for installing the anti-slip block is provided on the extended handle.
[0010] Preferably, the positioning assembly further comprises a spring 1, which is fixedly mounted inside the recess, and one end of the spring 1 is fixedly connected to the anti-slip block.
[0011] Preferably, the extrusion plate is movably mounted inside the installation box, and the extrusion block is fixedly mounted on one side of the extrusion plate.
[0012] Preferably, the trigger assembly further includes a second spring, two second springs are fixedly mounted inside the mounting box, and one end of the second spring is fixedly connected to the extrusion plate.
[0013] The utility model provides a positioning pull rod for built-in heat preservation, which has the following improvements and advantages compared with the prior art: by providing a heating wire and a trigger component, in a cold winter environment, the main switch is pressed, and then the user holds the handle, and the user's fingers apply an inward force to the squeezing plate and press the sub-switch through the squeezing block to trigger the secondary switch. At this time, the heating wire inside the handle is connected to the external battery and starts to generate heat. When the user's hand is not in contact with the handle, the squeezing plate rebounds under the action of spring 2, and the heating wire in the handle is disconnected from the external battery and no longer generates heat. When a companion pulls the extended handle for use, the extended handle on the corresponding side is pulled out, and the companion's fingers press the squeezing plate on the extended handle on the corresponding side and connect the heating wire on the extended handle on the corresponding side to the external battery and start generating heat, thereby improving the use effect of the pull rod in a cold winter environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.
[0015] Figure 1 This is a schematic diagram of the structure of a built-in heat-insulating positioning rod proposed in the utility model;
[0016] Figure 2 This is a schematic diagram of the installation of a main switch in a built-in heat preservation positioning rod proposed in the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of a handle in a positioning pull rod with built-in heat preservation proposed in the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of an extended handle in a built-in heat-insulating positioning pull rod proposed by the utility model;
[0019] Figure 5 This is a schematic structural diagram of a positioning assembly in a built-in thermal insulation positioning rod proposed in the present utility model;
[0020] Figure 6 This is a schematic diagram of the structure of a trigger assembly in a built-in heat-insulating positioning rod proposed by the utility model;
[0021] Figure 7 This is a connection circuit diagram of the heating wire, main switch and auxiliary switch in a built-in heat preservation positioning pull rod proposed by the utility model.
[0022] Legend:
[0023] 1. Mounting sleeve; 2. Movable sleeve; 3. Extension rod; 4. Handle; 5. External sleeve; 6. Extended handle; 7. Positioning ring; 8. Main switch; 9. Heating wire; 10. Mounting box; 11. Anti-drop block; 12. Spring 1; 13. Auxiliary switch; 14. Extrusion plate; 15. Extrusion block; 16. Spring 2. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] A built-in heat preservation positioning rod, such as Figure 1 - Figure 7 As shown, it includes a mounting sleeve 1, a movable sleeve 2 is movably installed inside the mounting sleeve 1, an extension rod 3 is movably installed inside the movable sleeve 2, a handle 4 is fixedly installed on the extension rod 3, an external sleeve 5 is fixedly installed on both sides of the handle 4, an extension handle 6 is movably installed inside the external sleeve 5, a positioning component is provided between the external sleeve 5 and the extension handle 6, the positioning component can limit and fix the extension handle 6, an electric heating wire 9 is provided inside the handle 4 and the two extension handles 6, the electric heating wire 9 is electrically connected to the external battery, a mounting box 10 is fixedly installed inside the handle 4 and the extension handle 6, a trigger component is provided inside the mounting box 10, and when the corresponding trigger component can be triggered, the corresponding electric heating The wire 9 is connected to the power supply to start, and a main switch 8 is fixedly installed on the extension rod 3, and the main switch 8 is electrically connected to the external battery; by providing an extended handle 6 and a heating wire 9, when the suitcase is heavy and needs the assistance of a companion to drag it, the extended handle 6 is pulled to the outside of the external sleeve 5 and the extended handle 6 is limited and fixed by the control component. At this time, the companion can grasp the extended handle 6 on the side of the suitcase to apply force to help drag the suitcase. At the same time, a heating wire 9 and a trigger component are provided. When the ambient temperature is low in winter, the heating wire 9 and the trigger component can make the handle 4 and the heating wire 9 inside the extended handle 6 on the corresponding side be connected to the external battery to generate heat, thereby improving the overall use effect of the pull rod in a cold environment.
[0026] When the handle 6 is not in use, the outer sleeve 5 is fixed with two anti-slip blocks 11, and the anti-slip blocks 11 are fixed with the positioning ring 7. The inner portion of the positioning ring 7 is connected to the inner portion of the outer sleeve 5. Two anti-slip blocks 11 are movably installed on the extension handle 6, and the anti-slip blocks 11 are engaged with the positioning ring 7. A recess for installing the anti-slip blocks 11 is provided on the extension handle 6, and a spring 12 is fixedly installed inside the recess, and one end of the spring 12 is fixedly connected to the anti-slip block 11. By providing a positioning assembly, when the extension handle 6 on the corresponding side is pulled to the outside of the external sleeve 5, the extension handle 6 is pulled into place, and the anti-slip block 11 slides into the inner portion of the positioning ring 7 under the elastic force of the spring 12 to achieve limited fixation of the extension handle 6. When the extension handle 6 is not needed, the extension handle 6 is slid into the inner portion of the external sleeve 5 for storage and fixed by the cooperation of the anti-slip blocks 11, spring 12 and the positioning ring 7 so as to facilitate the storage and fixation of the extension handle 6.
[0027] Furthermore, the trigger assembly includes an auxiliary switch 13, which is fixedly installed inside the installation box 10. The auxiliary switch 13 is electrically connected to the external battery. An extrusion plate 14 is movably installed inside the installation box 10. The extrusion plate 14 is an arc-shaped structure. Two springs 16 are fixedly installed inside the installation box 10. One end of the spring 16 is fixedly connected to the extrusion plate 14. An extrusion block 15 is fixedly installed on one side of the extrusion plate 14. The extrusion block 15 is an arc-shaped structure. The extrusion block 15 can contact the auxiliary switch 13 and press the auxiliary switch 13 to trigger it. By providing the trigger assembly, in a cold winter environment, the main switch 8 is pressed, and then the user holds the handle 4 The user's fingers apply an inward force to the squeezing plate 14 and press the sub-switch 13 through the squeezing block 15. At this time, the heating wire 9 inside the handle 4 is connected to the external battery and starts to generate heat. When the user's hand is not in contact with the handle 4, the squeezing plate 14 rebounds under the action of the spring 16, and the heating wire 9 in the handle 4 is disconnected from the external battery and no longer generates heat. When a companion pulls the extended handle 6 to use it, the extended handle 6 on the corresponding side is pulled out, and the companion's fingers press the squeezing plate 14 on the extended handle 6 on the corresponding side and connect the heating wire 9 on the extended handle 6 on the corresponding side to the external battery and start generating heat, thereby improving the use effect of the pull rod in cold winter environments.
[0028] The working principle of the present invention is as follows: when the suitcase is heavy and needs to be dragged with the assistance of a companion, the extended handle 6 is pulled to the outside of the external sleeve 5, and the extended handle 6 is pulled into place. The anti-drop block 11 slides to the inside of the positioning ring 7 under the elastic force of the spring 12 to achieve the limit fixation of the extended handle 6. When the extended handle 6 is not needed, the extended handle 6 is slid to the inside of the external sleeve 5 for storage and fixed by the cooperation of the anti-drop block 11, the spring 12 and the positioning ring 7 so as to facilitate the storage and fixation of the extended handle 6. In the cold winter environment, the main switch 8 is pressed, and then the user holds the handle 6 by hand. The user's fingers apply an inward force to the squeezing plate 14 and press the sub-switch 13 through the squeezing block 15 to trigger the grip 4. At this time, the heating wire 9 inside the grip 4 is connected to the external battery and starts to generate heat. When the user's hand is not in contact with the grip 4, the squeezing plate 14 rebounds under the action of the spring 16, and the heating wire 9 in the grip 4 is disconnected from the external battery and no longer generates heat. When a companion pulls the extended grip 6 to use it, the extended grip 6 on the corresponding side is pulled out, and the companion's fingers press the squeezing plate 14 on the extended grip 6 on the corresponding side and connect the heating wire 9 on the extended grip 6 on the corresponding side to the external battery and start generating heat.
[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A positioning rod for built-in heat preservation, comprising a mounting sleeve (1), a movable sleeve (2) movably mounted inside the mounting sleeve (1), an extension rod (3) movably mounted inside the movable sleeve (2), a handle (4) fixedly mounted on the extension rod (3), characterized in that: External sleeves (5) are fixedly mounted on both sides of the handle (4), an extended handle (6) is movably mounted inside the external sleeve (5), a positioning assembly is provided between the external sleeve (5) and the extended handle (6), heating wires (9) are provided inside the handle (4) and the two extended handles (6), mounting boxes (10) are fixedly mounted inside the handle (4) and the extended handle (6), a trigger assembly is provided inside the mounting box (10), and a main switch (8) is fixedly mounted on the extension rod (3); The trigger assembly comprises an auxiliary switch (13), which is fixedly mounted inside the installation box (10). An extrusion plate (14) and an extrusion block (15) are provided inside the installation box (10).
2. The built-in heat-insulating positioning rod according to claim 1, characterized in that: The positioning assembly comprises positioning rings (7), two positioning rings (7) are fixedly mounted on the external sleeve (5), and two anti-slip blocks (11) are movably mounted on the extended handle (6).
3. The built-in heat-insulating positioning rod according to claim 2, characterized in that: The interior of the positioning ring (7) is communicated with the interior of the external sleeve (5), the anti-slip block (11) is clamped with the positioning ring (7), and a recess for installing the anti-slip block (11) is provided on the extended handle (6).
4. The built-in heat-insulating positioning rod according to claim 2, characterized in that: The positioning assembly further comprises a spring (12), which is fixedly mounted inside the recess, and one end of the spring (12) is fixedly connected to the anti-slip block (11).
5. The built-in heat-insulating positioning rod according to claim 1, characterized in that: The extrusion plate (14) is movably mounted inside the installation box (10), and the extrusion block (15) is fixedly mounted on one side of the extrusion plate (14).
6. The built-in heat-insulating positioning rod according to claim 1, characterized in that: The trigger assembly further comprises a second spring (16). Two second springs (16) are fixedly mounted inside the mounting box (10). One end of the second spring (16) is fixedly connected to the extrusion plate (14).