Temperature-variable umbrella handle convenient to identify and use

Abstract

The utility model relates to the field of umbrellas, and discloses a temperature change umbrella handle convenient to identify and use, which structurally comprises a temperature-sensitive color change umbrella handle main body, an inner cavity is arranged at the top end of the umbrella handle main body, an expansion cavity is arranged at the top end of the inner cavity, an end sleeve is arranged at the top end of the umbrella handle main body, and the end sleeve is nested on an umbrella rod and is clamped with an inner occlusion piece in the expansion cavity. According to the umbrella handle, the expanding cavity is formed in the opening of the umbrella handle body, the inner meshing piece is arranged in the expanding cavity, the end sleeve is matched with the expanding cavity, the plug cock teeth are rotatably inserted into the inner inclined teeth through rotation of the end sleeve, the plug cock teeth are inserted into the inner inclined teeth through rotation of the end sleeve, and therefore the plug cock teeth can be inserted into the umbrella rod and the umbrella handle body. The inner inclined teeth of the outer ring completely penetrate through the receding grooves to abut against the umbrella rod on the inner side, the cock teeth of the inner ring penetrate through the partition grooves to abut against the inner wall of the expansion cavity on the outer side, and therefore radial pressure is applied to the umbrella rod and the umbrella handle body, and by providing active and adjustable fastening force, the pull-off resistance of the umbrella handle is more stable compared with passive glue bonding.

Description

Technical Field

[0001] This utility model relates to the field of umbrellas, specifically a temperature-sensitive umbrella handle that is easy to identify and use. Background Technology

[0002] Long-handled umbrellas remain popular due to their larger coverage area. However, with the increasing variety of commuting needs, some umbrellas have begun to use thermochromic handles. Thermochromic materials change color according to temperature to meet decorative requirements.

[0003] Due to the material properties, thermochromic umbrella handles are usually injection molded, which means that the handle and shaft are glued together. In strong winds, the shaft is easily subjected to large torque or tension. Since there is no radial pressure applied between the handle and shaft and no circumferential restriction, the glue layer is prone to fatigue after being subjected to frequent torque or vibration, causing the handle and shaft to detach. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a thermochromic umbrella handle that is easy to identify and use. The structure includes an umbrella handle body with a thermosensitive color-changing layer. The top of the umbrella handle body has a countersunk inner cavity for mounting the umbrella shaft. The top of the inner cavity has an expansion cavity with a diameter larger than the inner cavity itself, where an inner engaging component is installed. The top of the umbrella handle body has an end sleeve that is nested on the umbrella shaft and engages with the inner engaging component. The end sleeve and the inner engaging component apply radial pressure perpendicular to the umbrella shaft axis to the umbrella shaft and the umbrella handle body. The inner engaging component includes inward-curving teeth, and the end sleeve includes rotating teeth. The rotating teeth and inward-curving teeth overlap radially to apply radial pressure to the umbrella shaft and the inner wall of the expansion cavity. The expansion cavity contains an adhesive layer filled with glue, which fills the gap between the end sleeve and the inner engaging component.

[0005] Furthermore, the inner engagement member includes an outer sleeve, which is surrounded by a vertical groove, and the inclined tooth is connected to the groove and inclined towards the central axis of the umbrella handle body based on the connection point; the end sleeve includes a downwardly extending lower sleeve, which is surrounded by a vertical relief groove, and the stopcock tooth is connected to the relief groove and inclined away from the central axis of the umbrella handle body based on the connection point.

[0006] Furthermore, the bottom end of the partition groove penetrates the bottom end of the outer ring, the portion of the bottom end of the outer ring between the partition grooves is set as a lower embedded end, a locking step with a locking protrusion is provided between the expansion cavity and the inner cavity, and the lower embedded end is embedded and gap-fitted between the locking steps.

[0007] Furthermore, the inclined tooth is connected to the top of the partition groove, and the plug tooth is connected to the side end of the clearance groove; the lower sleeve is clearance-fitted with the umbrella rod, and the outer ring is clearance-nested with the expansion cavity with a diameter greater than that of the lower sleeve; the distance between the bottom end of the inclined inclined tooth and the axis of the umbrella rod is less than the radius of the umbrella rod, and the distance between the end of the inclined plug tooth and the axis of the umbrella handle body is greater than the inner diameter of the outer ring.

[0008] Furthermore, the wall structure between the relief grooves of the lower sleeve is set as a partition wall, which is used to abut against the inward-curving teeth so that the distance between the bottom end of the inward-curving teeth and the umbrella rod is greater than the radius of the umbrella rod.

[0009] Furthermore, the distance between the outer ring and the lower sleeve is greater than the thickness of the incline tooth, and the length of the relief groove in the planar circumferential direction is greater than the length of the plug tooth in the planar circumferential direction.

[0010] Furthermore, a locking tooth is provided on the side of the end of the plug tooth near the inner wall of the expansion cavity. The locking tooth at the end of the plug tooth, which is fixed against the inclined tooth, passes through the diaphragm and abuts against the inner wall of the expansion cavity.

[0011] Furthermore, an upwardly recessed flange groove is provided between the end sleeve and the lower sleeve. The flange groove is used to fit onto the top of the umbrella handle body, and the adhesive layer fills the flange groove.

[0012] Furthermore, the thermochromic layer at least covers the outer surface of the umbrella handle body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention features an expansion cavity at the opening of the umbrella handle body. An inner engaging component is installed within the expansion cavity and engages with an end sleeve. By rotating the end sleeve, the plug teeth rotate and insert into the inward-curving teeth, allowing the outer ring's inward-curving teeth to completely pass through the clearance groove and abut against the inner side of the umbrella shaft. The inner ring's plug teeth pass through the partition groove and abut against the inner wall of the outer expansion cavity, thereby applying radial pressure to the umbrella shaft and handle body. By providing an active and adjustable fastening force, compared to passive reliance on adhesive bonding, its pull-out resistance is more stable and its lifespan is longer. Its advantages are particularly significant in scenarios with frequent dynamic loads (such as strong winds). At the same time, the adhesive in the expansion cavity covers the gap between the end sleeve and the inner engaging component, forming a whole after drying, making the end sleeve and the inner engaging component more stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a thermochromic umbrella handle that is easy to identify and use according to this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the end sleeve, inner interlocking component, and umbrella handle body of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the end sleeve and inner interlocking component of this utility model.

[0018] Figure 4 This is a front sectional view of the end sleeve and inner interlocking component of this utility model nested on the umbrella shaft.

[0019] Figure 5 This is a front sectional view of the end sleeve and inner interlocking part of this utility model, which are nested inside the umbrella handle body and cooperate with the umbrella shaft.

[0020] Figure 6 This is a top view schematic diagram of the fit between the end sleeve and the inner interlocking part of this utility model.

[0021] In the diagram: 1. Umbrella handle body; 2. Umbrella shaft; 3. End sleeve; 4. Internal interlocking component;

[0022] 1a. Inner cavity; 1b. Expanded cavity; 1c. Engaging step; 31. Lower sleeve; 32. Plug tooth; 33. Plug tooth; 3a. Relief groove; 3b. Partition wall; 3c. Overlap groove; 41. Outer ring; 42. Inclined tooth; 4a. Spacing groove; 4b. Lower insert end. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] Examples, such as Figures 1-6 As shown: This utility model provides a thermochromic umbrella handle that is easy to identify and use. The structure includes an umbrella handle body 1, which is provided with a thermosensitive color-changing layer. The thermosensitive color-changing layer covers at least the outer surface of the umbrella handle body 1. In this embodiment, the umbrella handle body 1 adopts a full-body thermosensitive color-changing layer. Thermosensitive dyes, photosensitive dyes, or chemical reactants are directly added to plastic raw materials and mixed, heated, extruded, and other processes are carried out to prepare a thermosensitive color-changing layer with color-changing properties. The top of the umbrella handle body 1 is provided with a countersunk inner cavity 1a for installing the umbrella rod 2. The inner cavity 1a is filled with glue to form an adhesive layer between the umbrella rod 2 and the inner wall of the inner cavity 1a for bonding the umbrella rod 2 and the umbrella handle body 1.

[0025] In this embodiment, the top of the inner cavity 1a is provided with an expansion cavity 1b with a diameter larger than that of the inner cavity 1a. The expansion cavity 1b is used to install the inner engaging member 4. The top of the umbrella handle body 1 is provided with an end sleeve 3. During installation, the end sleeve 3 is nested on the umbrella pole 2 and engages with the inner engaging member 4. After the umbrella pole 2 is installed on the umbrella handle body 1, the end sleeve 3 can be put from the umbrella pole 2 onto the umbrella body, so that the end sleeve 3 covers the connection between the umbrella handle body 1 and the umbrella pole 2. Moreover, the end sleeve 3 and the inner engaging member 4 are used to apply radial pressure perpendicular to the axis of the umbrella pole 2 to the umbrella pole 2 and the umbrella handle body 1.

[0026] Therefore, the inner engagement member 4 includes an outer ring 41 and an inner inclined tooth 42. The outer ring 41 is fitted with the expansion cavity 1b with a gap. The outer ring 41 is surrounded by a vertical groove 4a. The inner inclined tooth 42 is connected to the groove 4a. Specifically, it is connected to the top of the groove 4a and is inclined towards the central axis of the umbrella handle body 1 based on the connection point. The bottom end of the groove 4a penetrates the bottom end of the outer ring 41. The bottom part of the outer ring 41 between the grooves 4a is set as the lower insertion end 4b. There is a locking step 1c with a locking protrusion between the expansion cavity 1b and the inner cavity 1a. The lower insertion end 4b is embedded and fitted with a gap between the locking steps 1c, thereby using the locking steps 1c to restrict the degree of freedom of the inner engagement member 4 to rotate around the axis of the expansion cavity 1b.

[0027] Meanwhile, the end sleeve 3 includes a lower sleeve 31 extending downward and a stopper tooth 32 provided on the lower sleeve 31. The lower sleeve 31 is clearance-fitted with the umbrella rod 2 and the outer ring 41 has a diameter larger than that of the lower sleeve 31. The lower sleeve 31 is surrounded by a vertical relief groove 3a. The stopper tooth 32 is connected to the relief groove 3a, specifically to the side end of the relief groove 3a and inclined away from the central axis of the umbrella handle body 1 based on the connection point. Thus, the stopper tooth 32 overlaps with the incline tooth 42 in the radial direction by rotating and gradually penetrates, so that the incline tooth 42 and the stopper tooth 32 squeeze each other to apply radial pressure to the umbrella rod 2 and the inner wall of the expansion cavity 1b.

[0028] It should be noted that the distance between the bottom end of the inclined inward tooth 42 and the axis of the umbrella rod 2 is less than the radius of the umbrella rod 2, and the distance between the end of the inclined plug tooth 32 and the axis of the umbrella handle body 1 is greater than the inner diameter of the outer ring 41, so that the inward tooth 42 and the plug tooth 32 are in a state that can contact the umbrella rod 2 and the inner wall of the expansion cavity 1b in advance.

[0029] It should also be noted that the cavity 1b contains an adhesive layer formed by glue filling the gap between the end sleeve 3 and the inner engaging member 4. In addition to providing further adhesive force between the umbrella handle body 1 and the umbrella shaft 2, the glue also stabilizes the relative state of the end sleeve 3 and the inner engaging member 4.

[0030] In this embodiment, the wall structure between the relief grooves 3a of the lower sleeve 31 is set as a partition wall 3b. The partition wall 3b is used to abut against the inward-curving teeth 42 so that the distance between the bottom end of the inward-curving teeth 42 and the umbrella rod 2 is greater than the radius of the umbrella rod 2. That is, when the umbrella rod 2 is installed, the inner engaging member 4 is first nested in the end sleeve 3, and the partition wall 3b is used to hold against the inward-curving teeth 42, so that the end sleeve 3 can be placed on the umbrella rod 2 without being squeezed by the inward-curving teeth 42, which would cause unnecessary friction during nesting. Furthermore, the distance between the outer ring sleeve 41 and the lower sleeve 31 is set to be greater than the distance between the inward-curving teeth 4a and the inner sleeve 3a. The thickness of 2 allows for a gap between the inclined tooth 42 on the lower sleeve 31 and the outer sleeve 41, allowing the subsequently rotating plug tooth 32 to insert into the gap. Furthermore, the length of the relief groove 3a in the circumferential direction is greater than the length of the plug tooth 32 in the circumferential direction. This way, when the plug tooth 32 is inserted into the inclined tooth 42, the relief groove 3a will move in front of the inclined tooth 42 first, giving the inclined tooth 42 room to move and allowing it to deform when squeezed by the plug tooth 32.

[0031] In summary, in this embodiment, the inner engaging member 4 is nested inside the end sleeve 3, and the partition wall 3b is used to hold the inclined tooth 42 in place. Then, the end sleeve 3 is placed on the umbrella shaft 2. Glue is then applied to the inner cavity 1a and the umbrella shaft 2, and the umbrella shaft 2 is inserted into the inner cavity 1a of the umbrella handle body 1. Excess glue will overflow into the expansion cavity 1b. Then, the end sleeve 3 is inserted into the expansion cavity 1b. At this time, the lower insert end 4b of the inner engaging member 4 first contacts the bottom of the expansion cavity 1b. The end sleeve 3 is rotated so that the lower insert end 4b aligns with the gap between the engaging steps 1c. The lower insert end 4b is inserted and fits with the engagement step 1c with a gap. Between the engagement steps 1c, then further press down so that the bottom of the lower sleeve 31 of the end sleeve 3 hits the top of the engagement step 1c, then rotate the end sleeve 3. The inner engaging part is restricted by the engagement step 1c and will not rotate. When the lower sleeve 31 of the end sleeve 3 rotates, the clearance groove 3a moves to the front of the incline tooth 42 to give the incline tooth 42 a space to move. Then the plug tooth 32 rotates and inserts into the incline tooth 42. As the rotation goes deeper, the incline tooth 42 completely passes through the clearance groove 3a and abuts against the umbrella rod 2. The plug tooth 32 passes through the partition groove 4a and abuts against the inner wall of the expansion cavity 1b.

[0032] Furthermore, a locking tooth 33 is provided on the side of the end of the plug tooth 32 near the inner wall of the expansion cavity 1b. The locking tooth 33 at the end of the plug tooth 32, which is fixed against the incline tooth 42, passes through the partition groove 4a and abuts against the inner wall of the expansion cavity 1b, allowing the plug tooth 32 entering the partition groove 4a to better adapt to the inner wall of the expansion cavity 1b. At the same time, the glue in the expansion cavity 1b covers the gap between the end sleeve 3 and the inner engagement member 4, forming a whole after drying.

[0033] In this embodiment, in addition to the above, an upwardly recessed edge groove 3c is provided between the end sleeve 3 and the lower sleeve 31. The edge groove 3c is used to fit on the top of the umbrella handle body 1, so that the connection between the end sleeve 3 and the umbrella handle body 1 is more aesthetically pleasing. Furthermore, the adhesive layer is filled into the edge groove 3c to form a more complete adhesive layer.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A thermochromic umbrella handle for easy identification and use, comprising an umbrella handle body, wherein the umbrella handle body is provided with a thermosensitive color-changing layer, and the top end of the umbrella handle body is provided with a countersunk cavity for installing an umbrella shaft, characterized in that: The inner cavity top end is provided with an expansion cavity with a diameter larger than that of the inner cavity, and the expansion cavity is used for installing an inner clamping member, and the umbrella handle body top end is provided with an end sleeve, which is nested on the umbrella rod and is clamped with the inner clamping member; The end sleeve and the inner clamping member are used for applying a radial pressure perpendicular to the umbrella rod axis to the umbrella rod and the umbrella handle body, the inner clamping member comprises an inner inclined tooth, and the end sleeve comprises a plug tooth, the plug tooth and the inner inclined tooth are radially overlapped to apply a radial pressure to the umbrella rod and the expansion cavity inner wall; The expansion cavity is provided with a glue layer filled by glue, and the glue layer is filled into the gap between the end sleeve and the inner clamping member.

2. A temperature change handle according to claim 1, wherein: The inner clamping member comprises an outer sleeve, the outer sleeve is provided with vertical separation grooves, and the inner inclined tooth is connected to the separation grooves and is inclined to the central axis of the umbrella handle body based on the connection; The end sleeve comprises a downward extending lower sleeve, the lower sleeve is provided with vertical accommodation grooves, and the plug tooth is connected to the accommodation grooves and is inclined away from the central axis of the umbrella handle body based on the connection.

3. A temperature change umbrella handle for ease of identification of use according to claim 2, characterised in that: The separation groove bottom end penetrates the outer sleeve bottom end, the outer sleeve bottom end between the separation grooves is provided with a lower embedding end, and the expansion cavity and the inner cavity are provided with a clamping step with clamping protrusions, and the lower embedding end is embedded and clearance fitted between the clamping steps.

4. A temperature change umbrella handle for ease of identification of use according to claim 2 or 3, wherein: The inner inclined tooth is connected to the top end of the separation groove, and the plug tooth is connected to the side end of the accommodation groove; The lower sleeve is clearance fitted with the umbrella rod, the outer sleeve is clearance nested with the expansion cavity and has a diameter larger than that of the lower sleeve, the inclined inner inclined tooth bottom end has a distance from the umbrella rod axis smaller than the umbrella rod radius, and the inclined plug tooth end has a distance from the umbrella handle body axis larger than the outer sleeve inner diameter.

5. A temperature change umbrella handle for facilitating identification of use according to claim 4, wherein: The wall structure between the accommodation grooves of the lower sleeve is an interval wall, which is used for abutting against the inner inclined tooth to make the inner inclined tooth bottom end have a distance from the umbrella rod larger than the umbrella rod radius.

6. A temperature change umbrella handle for ease of identification of use according to claim 5, wherein: The distance between the outer sleeve and the lower sleeve is larger than the thickness of the inner inclined tooth, and the length of the accommodation groove in the plane circumferential direction is larger than the length of the plug tooth in the plane circumferential direction.

7. A temperature change handle according to claim 2, wherein: The plug tooth end is provided with a clamping tooth on the side close to the expansion cavity inner wall, and the clamping tooth of the plug tooth end abutting against the inner inclined tooth penetrates the separation groove and abuts against the expansion cavity inner wall.

8. The temperature change handle of claim 1, wherein: The end sleeve and the lower sleeve are provided with an upward recessed covering groove, the covering groove is used for sleeving the umbrella handle body top end, and the glue layer is filled into the covering groove.

9. The temperature change handle of claim 1, wherein: The heat-sensitive color-changing layer covers at least the outer surface of the umbrella handle body.

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