CN115462948A - Hand warmer - Google Patents
Hand warmer Download PDFInfo
- Publication number
- CN115462948A CN115462948A CN202211146372.6A CN202211146372A CN115462948A CN 115462948 A CN115462948 A CN 115462948A CN 202211146372 A CN202211146372 A CN 202211146372A CN 115462948 A CN115462948 A CN 115462948A
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- China
- Prior art keywords
- hanging
- rotating
- rope
- hand warmer
- winding
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
- A61F2007/0071—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating using a resistor, e.g. near the spot to be heated
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
- A61F2007/0077—Details of power supply
- A61F2007/0078—Details of power supply with a battery
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses a hand warmer, which comprises: the shell is provided with a containing cavity and a drawing opening communicated with the containing cavity; the rotating and winding piece can be rotatably arranged in the containing cavity, and the drawing opening is positioned on the peripheral side of the rotating and winding piece; the hanging rope is wound on the rotating and winding piece and can be pulled out of the containing cavity through the drawing opening or wound and recovered in the containing cavity by the rotating and winding piece; the braking piece is arranged on the shell and used for controlling the telescopic state of the hanging rope. The telescopic state of hanging the rope is controlled through setting up the braking piece, can make to hang the rope and can be fixed by effective braking after being taken out preset length to keep hanging the length of taking out of rope, avoid hanging the length of taking out of rope and be changed at will, thereby can guarantee to hang the rope and wear stability at user's health position, with the stability of wearing that improves hand warmer.
Description
RELATED APPLICATIONS
The priority of the chinese patent application entitled "hand warmer" with application number 202221892173.5, which was filed on 21/7/2022, is hereby incorporated herein by reference in its entirety.
Technical Field
The invention relates to the technical field of heating devices, in particular to a hand warmer.
Background
The hand warmer is a common tool for warming people in winter, and a plurality of hand warmer products are available in the market at present, but the hand warmer has a single function, can only realize a heating function and has no other additional functions; and carry and use convenient inadequately, most warmers are only convenient warm hand, can not conveniently get warm to each position of health. The wearing piece that the correlation technique can be rolled up through the setting will warm hand and precious fixes at each position of health, nevertheless wears the piece and is taken out and not effectively braked behind the hand warmer, leads to wearing the length of taking out of piece and can't be stably kept, has influenced the stability of wearing of hand warmer.
Disclosure of Invention
The invention mainly aims to provide a hand warmer and aims to solve the technical problem of how to improve the wearing stability of the hand warmer.
In order to achieve the above purpose, the hand warmer provided by the invention comprises:
the shell is provided with a containing cavity and a drawing opening communicated with the containing cavity;
the rotating and winding piece can be rotatably arranged in the containing cavity, and the drawing opening is positioned on the peripheral side of the rotating and winding piece;
the hanging rope is wound on the winding piece and can be pulled out of the containing cavity through the drawing opening or wound back into the containing cavity by the winding piece;
and the braking part is arranged on the shell and used for controlling the telescopic state of the hanging rope.
Optionally, the braking member includes a control switch and a braking portion, the control switch is mounted on the housing, and the braking portion is located in the accommodating cavity and is linked with the control switch; when the control switch is not pressed, the braking part unidirectionally brakes the rotating and winding piece; when the control switch is pressed, the braking part releases the rotating and winding piece.
Optionally, the braking member further comprises a lever portion, the lever portion is rotatably mounted in the accommodating cavity, one end of the lever portion is connected to the control switch, and the other end of the lever portion is connected to the braking portion; when the control switch is pressed, the braking part releases the rotating and winding piece.
Optionally, a limiting protrusion is formed on the rotating and winding piece, the limiting protrusion is provided with a limiting surface and a guiding inclined surface, and the limiting surface and the guiding inclined surface are arranged back to back in the circumferential direction of the rotating and winding piece; when the rotating and winding piece rotates forwards to release the hanging rope, the guide inclined plane is in slidable butt joint with the braking part; when the winding piece rotates to wind the hanging rope, the limiting surface is in brake butt joint with the braking portion.
Optionally, the hand warmer further comprises a reset spring, the reset spring is mounted in the receiving cavity and connected to the rotating and winding member to drive the rotating and winding member to rotate and wind the hanging rope;
and/or the braking part is provided with a matching surface and a clearance inclined surface which are arranged in an opposite way; when the rotating and winding piece rotates forwards to release the hanging rope, the guide inclined plane is in slidable butt joint with the avoiding inclined plane; when the winding member rotates to wind the hanging rope, the matching surface is in braking butt joint with the limiting surface;
and/or the peripheral wall of the rotating and winding piece is connected with a rotating disc, the rotating disc extends along the circumferential direction of the rotating and winding piece, and the limiting bulge is convexly arranged on the peripheral wall of the rotating disc.
Optionally, the fitting surface is convexly provided with a limiting rib, and when the fitting surface is in braking abutment with the limiting surface, the limiting rib is in radial abutment with the limiting protrusion on the rotating member.
Optionally, a connecting shaft is convexly arranged on the cavity wall of the accommodating cavity, a connecting hole is formed in the lever part, and the connecting hole is rotatably matched with the connecting shaft;
and/or, the quantity of spacing arch is a plurality of, and is a plurality of spacing arch is followed the circumference interval of commentaries on classics piece sets up.
Optionally, the hand warmer further comprises a surrounding hanging belt and a heating sheet, the surrounding hanging belt comprises a surrounding hanging body and the hanging rope, and the surrounding hanging body is fixedly connected with the hanging rope; the heating piece is arranged on the surrounding and hanging body, a wire penetrates through the hanging rope, and the wire is electrically connected with the heating piece.
Optionally, the hand warmer further comprises a battery, a conductive thimble and a circuit board, one of the conductive thimble and the circuit board is mounted on the rotating member and electrically connected to the conducting wire, and the other is mounted on one side of the rotating member; the circuit board is electrically abutted against the conductive thimble, and one end of the conductive thimble can rotate along the surface of the circuit board; the circuit board is electrically connected with the battery.
Optionally, the conductive thimble is mounted to the rotating member to rotate with the rotating member and electrically connected to the conductive wire, and the circuit board is located on one axial side of the rotating member.
Optionally, the conductive thimble includes a positive thimble and a negative thimble, and the positive thimble and the negative thimble are different from the axial center of the rotating member in distance; the circuit board is provided with a positive annular area and a negative annular area, and one of the positive annular area and the negative annular area is arranged on the other in an encircling manner; the positive thimble rotates along the positive annular region, and the negative thimble rotates along the negative annular region.
Optionally, the circuit board 9 is provided with a first annular groove and a second annular groove, the positive annular region is formed in the first annular groove, and the negative annular region is formed in the second annular groove.
Optionally, the encircling and hanging belt further comprises a connector, the connector fixedly connects the encircling and hanging body with the hanging rope, and the hardness of the connector is greater than that of the encircling and hanging body.
Optionally, the hanging rope comprises a first rope segment and a second rope segment, the first rope segment is wound around the winding member, and the first rope segment can be pulled out of the receiving cavity through the drawing opening or rolled back into the receiving cavity by the winding member;
the second rope section penetrates through the surrounding and hanging body, and the connecting body is connected to the end portion of the surrounding and hanging body and fixes the surrounding and hanging body and the second rope section.
Optionally, the connecting body comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are connected with each other, and the end part of the enclosing body and part of the second rope segment are clamped between the first connecting piece and the second connecting piece.
According to the technical scheme of the hand warmer, the rotatable winding piece is arranged in the accommodating cavity of the shell, and the hanging rope is wound on the winding piece; when a user needs to use the hand warmer, the hanging rope can be pulled out through the pull opening and then bound or wound on a preset part of the body; when the hand warmer does not need to be used, the hanging rope can be taken up and the rotating winding piece can be wound through the drawing opening, so that the accommodating cavity can be retracted. In addition, through setting up the flexible state that the braking piece comes control to hang the rope, can make to hang the rope and can be fixed by effective braking after being taken out preset length to keep hanging the length of taking out of rope, avoid hanging the length of taking out of rope and be changed at will, thereby can guarantee to hang the rope and at the stability of wearing of user's health position, with the stability of wearing that improves hand warmer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an internal structure of an embodiment of a hand warmer of the present invention;
FIG. 2 is a schematic perspective view of an internal structure of an embodiment of the hand warmer of the present invention;
FIG. 3 is a schematic view of the internal structure of another embodiment of the hand warmer of the present invention;
FIG. 4 is a schematic view of a brake member according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of the hand warmer of the present invention;
FIG. 6 is a schematic view of an internal structure of an embodiment of the hand warmer of the present invention;
FIG. 7 is a schematic structural view of an embodiment of a sling according to the present invention;
FIG. 8 is an exploded view of one embodiment of the containment band of the present invention;
FIG. 9 is an exploded cross-sectional view of one embodiment of a containment band of the present invention;
FIG. 10 is a schematic view of the internal structure of an embodiment of the hand warmer of the present invention;
FIG. 11 is an exploded view of the interior of one embodiment of the hand warmer of the present invention;
FIG. 12 is a schematic diagram illustrating a structure of an embodiment of a circuit board and a conductive thimble according to the present invention;
fig. 13 is a schematic cross-sectional view of a hand warmer according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a hand warmer.
In an embodiment of the present invention, as shown in fig. 1 to 3, the hand warmer includes: the device comprises a shell 10, a first fixing device and a second fixing device, wherein the shell 10 is provided with a containing cavity 11 and a drawing opening 13 communicated with the containing cavity 11; a rotating part 20 rotatably installed in the accommodating cavity 11, wherein the drawing opening 13 is located on the peripheral side of the rotating part 20; the hanging rope 30 is wound on the winding member 20, and the hanging rope 30 can be pulled out of the accommodating cavity 11 through the drawing opening 13 or rolled back to the accommodating cavity 11 by the winding member 20; and a brake member 40 mounted to the housing 10 for controlling the extension and contraction state of the lanyard 30.
The casing 10 is used to form an integral appearance structure of the hand warmer, and the casing 10 may be rectangular, or may be a cylinder or a sphere, which is not limited herein. For example, the housing 10 may be cobblestone shaped for easy grasping by a user. The rotating member 20 may be a hollow cylinder or a solid, and it is not limited herein, and only needs to be rotatable in the accommodating cavity 11 and the hanging rope 30 can be wound. The hand warmer further comprises a heating element arranged on the shell 10, wherein the heating element can generate heat through electric energy or chemical energy, and is not limited herein. The heat generating member may be installed in the receiving cavity 11 or may be installed on an outer wall of the housing 10, which is not limited herein.
The hanging rope 30 can enter and exit the containing cavity 11 through the drawing opening 13, and when the user does not need to wear the hand warmer, the hanging rope 30 is wound on the winding piece 20 and hidden in the containing cavity 11. When the user needs to wear the hand warmer, the user can hang the rope 30 from the drawing opening 13 to pull the rope 30 out of the storage cavity 11. As the lanyard 30 is pulled, the force is transferred to the winding member 20 and the winding member 20 is rotated synchronously to gradually release the lanyard 30. The other end of the strap 30 may be fixedly coupled to the winding member 20 to prevent the strap 30 from being difficult to be retracted after being bent and pulled out of the receiving chamber 11. After the hanging rope 30 is pulled out of the accommodating cavity 11, the user can wind or bind the hanging rope 30 around a predetermined portion of the body for warming, for example, the hanging rope 30 is tied around the neck, or the hanging rope 30 is wound around the waist or the arm.
After the hand warmer finishes using, the user can rewind the hanging string 30 back into the storage chamber 11 by driving the winding member 20 to rotate reversely. The driving of the rotating and winding member 20 may be by a driving motor, or manually or by a resetting spring 50 or a resetting elastic sheet, which is not limited herein; it is sufficient that the winding member 20 can be rotated to retract the lanyard 30.
The form of the braking member 40 is not limited, and only needs to be satisfied that the extension and retraction state of the lanyard 30 can be controlled, that is, the braking member 40 can brake or release the lanyard 30. When the brake member 40 brakes the hanging rope 30, the hanging rope 30 cannot continue to extend or contract relative to the drawing opening 13, so that the extending length of the hanging rope 30 can be maintained to ensure the wearing stability of the user. When the stopper 40 releases the hanging rope 30, the hanging rope 30 can continue to extend and contract relative to the drawing opening 13, so that the user can adjust the hanging rope 30 to the required extending length.
The braking element 40 can directly brake or release the hanging rope 30, and can also indirectly brake or release the hanging rope 30; for example, the brake member 40 can brake or release the spool 20 so that the tether 30 can be disabled by braking the spool 20.
In the technical scheme of the hand warmer, a rotatable rotating and winding piece 20 is arranged in a containing cavity 11 of a shell 10, and a hanging rope 30 is wound on the rotating and winding piece 20; when a user needs to use the hand warmer, the hanging rope 30 can be pulled out through the pull-out opening 13 and then bound or wound on a preset part of the body; when the hand warmer is not needed, the hanging rope 30 can be retracted back to the winding member 20 through the drawing opening 13 to retract the storage cavity 11. In addition, through setting up the flexible state that braking piece 40 comes control string 30, can make string 30 can be effectively braked fixedly after being taken out preset length to keep string 30's the length of taking out, avoid string 30's the length of taking out to be changed at will, thereby can guarantee string 30 at the stability of wearing of user's health position, with the stability of wearing that improves hand warmer.
Illustratively, as shown in fig. 1 and 2, the braking member 40 includes a control switch 41 and a braking portion 42, the control switch 41 is mounted on the housing 10, and the braking portion 42 is located in the receiving cavity 11 and is linked with the control switch 41; when the control switch 41 is not pressed, the brake part 42 unidirectionally brakes the winding member 20; when the control switch 41 is pressed, the stopper 42 releases the winding member 20.
The housing 10 is provided with a mounting hole, and the control switch 41 can be movably mounted in the mounting hole to facilitate the pressing control by the user. When the control switch 41 is pressed, the braking portion 42 is also activated, and the braking portion 42 may brake the rotating member 20 in a direction approaching the rotating member 20, or may release the rotating member 20 in a direction away from the rotating member 20, which is not limited herein. For example, when the control switch 41 is not pressed, the braking portion 42 releases the winding member 20; when the control switch 41 is pressed, the brake part 42 brakes the winding member 20; so that the control switch 41 can be pressed to brake the spool 20 when the user wants to maintain the extended length of the lanyard 30.
Illustratively, as shown in fig. 1 and 4, the braking member 40 further includes a lever portion 43, the lever portion 43 is rotatably mounted in the receiving cavity 11, one end of the lever portion 43 is connected to the control switch 41, and the other end is connected to the braking portion 42; when the control switch 41 is pressed, the stopper 42 releases the winding member 20.
The wall of the housing chamber 11 is provided with a fulcrum structure to which the middle portion of the lever portion 43 in the length direction is rotatably connected so that when one end of the lever portion 43 approaches the winding member 20, the other end thereof moves away from the winding member 20. The control switch 41 and the braking part 42 are respectively connected to two ends of the lever part 43, and when the control switch 41 is not pressed, the braking part 42 keeps a braking state to the rotating and winding part 20; when the control switch 41 is pressed, the stopper 42 releases the turn-around member 20 in a direction away from the turn-around member 20 by a lever action. Thus, the lanyard 30 is normally held fixed, i.e., non-retractable; when the user needs to release or wind the lanyard 30, the control switch 41 can be pressed to cause the brake 42 to release the spool 20. Compared with the time for releasing or winding the hanging rope 30, the time for keeping the hanging rope 30 in the fixed state is longer, so that the braking part 42 keeps braking the rotating and winding part 20 in a normal state, a user can press the control switch 41 when the extending length of the hanging rope 30 needs to be changed, the operation times of the user can be reduced, and the use convenience of the hand warmer is improved.
Illustratively, as shown in fig. 3, the hand warmer further comprises a reset spring 50, wherein the reset spring 50 is mounted in the receiving cavity 11 and connected to the winding member 20 to drive the winding member 20 to wind the hanging rope 30. When the suspending rope 30 is pulled out of the housing chamber 11 and the winding member 20 rotates forward, the winding member 20 elastically deforms the return spring 50 to accumulate elastic potential energy; when the pulling force of the hanging rope 30 is removed and the braking portion 42 releases the winding member 20, the reset spring 50 is elastically restored to drive the winding member 20 to rotate, so that the hanging rope 30 can be automatically wound.
It can be seen that after the hanging rope 30 is drawn out of the housing chamber 11, the winding member 20 is constantly subjected to the restoring force of the reset spring 50, and the braking portion 42 normally keeps braking the winding member 20, so that the winding member 20 is kept in a force balance state, and the hanging rope 30 is kept at the preset drawn-out length. When the hanging rope 30 needs to be automatically wound, a user only needs to press the control switch 41 to enable the braking portion 42 to loosen the rotating and winding member 20, and at the moment, the rotating and winding member 20 automatically winds the hanging rope 30 under the action of the reset spring 50, so that the convenience of winding the hanging rope 30 is improved.
Exemplarily, as shown in fig. 1 and fig. 2, the winding member 20 is formed with a limiting protrusion 21, the limiting protrusion 21 has a limiting surface 211 and a guiding inclined surface 212, and the limiting surface 211 and the guiding inclined surface 212 are arranged back to back in the circumferential direction of the winding member 20; when the winding member 20 rotates forward to release the hanging rope 30, the guide inclined surface 212 can be in sliding contact with the braking part 42; when the winding member 20 winds the hanging rope 30 in a rotating mode, the limiting surface 211 is in brake abutting connection with the braking portion 42, and therefore the braking portion 42 can brake the winding member 20 in a one-way mode.
The winding member 20 releases the hanging rope 30 when rotating forward and winds up the hanging rope 30 when rotating. The stopper surface 211 faces the direction of rotation of the rotatable member 20, and the guide slope surface 212 faces the direction of forward rotation of the rotatable member 20. The limiting protrusion 21 is formed on the peripheral wall of the rotating part 20, the limiting surface 211 is parallel to the radial direction of the rotating part 20, the guide inclined surface 212 forms an included angle with the radial direction of the rotating part 20, and the guide inclined surface 212 inclines away from the rotating axis of the rotating part 20. When the winding member 20 rotates in the normal direction, the stopper projection 21 passes through the stopper 42, and the guide slope 212 slidably abuts against the stopper 42, so that the stopper 42 does not obstruct the rotation of the stopper projection 21, that is, the release of the hanging cord 30. When the winding member 20 rotates, the limiting surface 211 is abutted against the braking portion 42 to prevent the limiting protrusion 21 from continuing to rotate, that is, the winding member 20 from continuing to rotate, so that the hanging rope 30 can be prevented from being wound.
That is, when the braking portion 42 is in a position to brake the rotating member 20, it only brakes the rotation of the rotating member 20 and does not hinder the normal rotation of the rotating member 20. When the user needs to pull out the hanging rope 30, the user only needs to overcome the resistance of the reset spring 50 without pressing the control switch 41; when the drawn length of the hanging rope 30 needs to be increased, the hanging rope 30 only needs to be pulled directly. Only when the hanging rope 30 needs to be wound or the drawn-out length of the hanging rope 30 needs to be shortened, the control switch 41 needs to be pressed, so that the number of times of manual operation by the user can be further reduced, and the convenience of control over the telescopic state of the hanging rope 30 is further improved. The braking member 40 is set to unidirectionally brake the winding member 20 only when the hanging rope 30 is wound, so that the user can control the length of the hanging rope 30 at will, and the hand warmer is prevented from colliding with the human body due to the sudden contraction of the hanging rope 30 in the wearing state, thereby improving the user experience.
Illustratively, as shown in fig. 4, the braking portion 42 has a mating surface 421 and an avoiding inclined surface 422, which are oppositely arranged; when the rotating and winding piece 20 rotates forward to release the hanging rope 30, the guide inclined plane 212 can be in sliding contact with the avoiding inclined plane 422; when the winding member 20 winds the hanging rope 30 in a rotating manner, the matching surface 421 abuts against the limiting surface 211 in a braking manner.
The matching surface 421 is parallel to the radial direction of the rotating member 20, the clearance inclined surface 422 forms an angle with the radial direction of the rotating member 20, and the clearance inclined surface 422 inclines towards the rotation axis of the rotating member 20. The engagement surface 421 faces the rotation direction of the rotating member 20, and the clearance slope 422 faces the forward rotation direction of the rotating member 20. When the rotating and winding piece 20 rotates forwards, the limiting protrusion 21 passes through the braking portion 42, and the guiding inclined surface 212 is in sliding butt joint with the avoiding inclined surface 422, so that the obstruction of the braking portion 42 to the limiting protrusion 21 during the forward rotation can be further reduced, the rotating and winding piece 20 can normally rotate forwards, and the releasing process of the hanging rope 30 is smoother. When the rotating member 20 rotates, the limiting surface 211 is opposite to the matching surface 421, so that the abutting area of the braking portion 42 and the limiting protrusion 21 can be increased, the braking stability of the braking portion 42 to the limiting protrusion 21 can be improved, and the braking effect of the rotating member 20 can be ensured.
For example, as shown in fig. 1 and 4, a limiting rib 44 is protruded from the matching surface 421, and when the matching surface 421 is in braking contact with the limiting surface 211, the limiting rib 44 is in contact with the limiting protrusion 21 in the radial direction of the rotating member 20. The limiting rib 44 can prevent the braking portion 42 from approaching the rotating member 20 too much, so as to avoid the braking portion 42 from being caught by the limiting protrusion 21 when the braking portion 42 needs to be far away from the rotating member 20, thereby ensuring the working stability of the braking portion 42.
Illustratively, as shown in fig. 1 and 2, the number of the limiting protrusions 21 is plural, and the plurality of limiting protrusions 21 are arranged at intervals along the circumferential direction of the rotating member 20. When the braking portion 42 is close to the winding member 20, the limiting protrusion 21 closer to the braking portion 42 abuts against the braking portion 42 more quickly, so that the winding member 20 is braked more quickly without waiting for the winding member 20 to rotate for a greater distance, and the withdrawal length of the hanging rope 30 can be controlled more accurately.
Illustratively, as shown in fig. 3 and 4, a connecting shaft 12 is protruded from a cavity wall of the receiving cavity 11, and the lever portion 43 is formed with a connecting hole 431, and the connecting hole 431 is rotatably engaged with the connecting shaft 12. The connecting shaft 12 is matched with the connecting hole 431 to achieve the rotary installation of the lever part 43 in the accommodating cavity 11, and the installation stability of the lever part 43 can be improved. Specifically, hand warmer can include the reset torsion spring, and connecting axle 12 is located to the reset torsion spring cover, and two tip of reset torsion spring are fixed in lever portion 43 and connecting axle 12 respectively to when control switch 41 is pressed but lever portion 43 rotates the back, the torsion spring that resets can drive lever portion 43 and reset, reset with drive control switch 41.
Illustratively, as shown in fig. 1, a rotating disc 22 is connected to a peripheral wall of the rotating member 20, the rotating disc 22 extends along a circumferential direction of the rotating member 20, and the limiting protrusion 21 is protruded from the peripheral wall of the rotating disc 22. The radial dimension of carousel 22 is greater than the radial dimension of commentaries on classics piece 20, and the commentaries on classics can make braking portion 42 be close to spacing arch 21 more easily to the whole volume of steerable commentaries on classics piece 20 to reduce the occupation space of commentaries on classics piece 20 at storage cavity 11, thereby can improve storage cavity 11's space effective utilization.
The invention provides a hand warmer.
In an embodiment of the present invention, as shown in fig. 4 to 7, the hand warmer includes: the device comprises a shell 10, a first fixing device and a second fixing device, wherein the shell 10 is provided with a containing cavity 11 and a drawing opening 13 communicated with the containing cavity 11; a rotating part 20 rotatably installed in the receiving cavity 11, wherein the drawing opening 13 is located on the peripheral side of the rotating part 20; the hanging belt 32 comprises a hanging body 31, a hanging rope 32 and a connecting body 33, the hanging rope 32 is wound on the winding member 20, and the hanging rope 32 can be pulled out of the accommodating cavity 11 through the drawing opening 13 or rolled back into the accommodating cavity 11 by the winding member 20; the connecting body 33 fixedly connects the surrounding hanging body 31 and the hanging rope 32, and the hardness of the connecting body 33 is greater than that of the surrounding hanging body 31.
In this embodiment, specifically, the casing 10 is used to form an overall appearance structure of the hand warmer, and the casing 10 may be rectangular, cylindrical or spherical, but is not limited thereto. For example, the housing 10 may be cobblestone shaped for easy grasping by a user. The rotating member 20 may be a hollow cylinder or a solid cylinder, and it is not limited herein, and only needs to be rotatable in the accommodating cavity 11 and can be wound by the hanging rope 32. The rotating member 20 has a circumferential surface and two end surfaces, and the drawing opening 13 is opposed to the circumferential surface of the rotating member 20. As the lanyard 32 is pulled outwardly, the force is transferred to the winding member 20 and the winding member 20 is rotated in unison to gradually release the lanyard 32. The other end of the lanyard 32 can be connected to the turner 20 to prevent the lanyard 32 from being difficult to retract after being completely pulled out of the storage cavity 11.
When it is desired to retract the lanyard 32, the user can retract the lanyard 32 back into the storage cavity 11 by driving the rewind member 20 to rotate in the reverse direction. The driving of the rotating and winding member 20 may be by a driving motor, or manually or by a resetting spring 50 or a resetting elastic sheet, which is not limited herein; it is sufficient that the winding member 20 can be rotated to retract the lanyard 32.
For example, the hand warmer further comprises a reset spring 50 mounted in the receiving chamber 11, the reset spring 50 is connected to the winding member 20, and the reset spring 50 is used for winding the hanging rope 32 by driving the winding member 20 to reset and rotate. When the hanging rope 32 is pulled out of the housing chamber 11 and the rotating member 20 rotates forward, the rotating member 20 elastically deforms the reset spring 50 and accumulates elastic potential energy; when the pulling force on the hanging rope 32 is removed, the reset spring 50 is elastically restored to drive the rotating member 20 to rotate, so that the hanging rope 32 can be automatically wound.
The enclosure body 31 may be provided as a flexible band to facilitate bending deformation and improve the tactile experience of the user. Enclose and hang body 31 and can switch between accomodate state and expansion state, when the user need use the hand warmer, enclose and hang body 31 and get into expansion state, enclose and hang body 31 and expand relative casing 10 this moment to enclose to close and form and enclose and hang the space. The enclosure space may be formed by enclosing the enclosure body 31 after the enclosure body 31 enters the unfolded state, or the enclosure body 31 may keep the shape of the enclosure with the neck space, which is not limited herein.
After the hanging body 31 enters the unfolding state, the user can hang the hanging body 31 around the neck, so that the shell 10 is kept at the position where the shell can contact the body, and then the shell generates heat through the heating sheet 60; the heating sheet 60 may generate heat by electric energy or chemical energy, which is not limited herein. The heat generated from the heat generating sheet 60 is transferred to the body part of the user through the case 10 to warm the user.
After the hand warmer finishes using, the user can switch the enclosing and hanging body 31 to the storage state, and the enclosing and hanging body 31 is close to the casing 10. It will be understood that the hanging body 31 and the connecting body 33 are always located outside the casing 10, and that a part of the hanging rope 32 connected with the connecting body 33 is always located outside the casing 10. When the hanging rope 32 is pulled outwards, the surrounding hanging body 31 and the connecting body 33 are relatively far away from the shell 10; when the hanging rope 32 is rolled up, the surrounding hanging body 31 and the connecting body 33 will be relatively close to the casing 10.
The connecting part of the hanging rope 32 and the surrounding hanging body 31, namely the connecting part 33 and the surrounding hanging body 31 and the hanging rope 32, because the connecting part 33 has higher hardness, the connecting part 33 can increase the structural strength of the connecting part of the surrounding hanging body 31 and the hanging rope 32, and therefore the friction or other acting force of the hanging rope 32 can not directly act on the surrounding hanging body 31, and the abrasion to the surrounding hanging body 31 is reduced.
In the technical scheme of the hand warmer, the surrounding and hanging body 31 and the hanging rope 32 are fixed with each other through the connecting body 33 with higher hardness, the acting force of the hanging rope 32 can be borne by the connecting body 33, and the connecting body 33 with higher hardness is less prone to abrasion and deformation, so that the stability of the whole structure of the surrounding and hanging body 31 can be improved; and the surrounding and hanging body 31 with smaller hardness can ensure the wearing comfort of the user so as to improve the user experience.
The fixing mode of the surrounding and hanging body 31, the hanging rope 32 and the connecting body 33 is not limited; for example, the hanging body 31 and the hanging rope 32 can be connected to the connecting body 33 respectively. Illustratively, as shown in fig. 4 and 5, the hanging rope 32 includes a first rope segment and a second rope segment, the first rope segment is wound around the winding member 20, and the first rope segment can be pulled out of the receiving cavity 11 through the drawing opening 13 or rolled back into the receiving cavity 11 by the winding member 20; the second rope portion is inserted into the enclosing and hanging body 31, and the connecting body 33 is connected to the end of the enclosing and hanging body 31 and fixes the enclosing and hanging body 31 and the second rope portion.
The first rope section hangs rope 32 promptly and does not have the part of being connected with enclosing and hanging body 31, the second rope section hangs rope 32 promptly and wears to locate enclosing and hanging body 31 and with enclosing and hanging body 31 fixed connection's part, and the second rope section wears to locate enclosing and hanging body 31, can improve the cooperation stability of second rope section and enclosing and hanging body 31. The connecting body 33 is connected to the end of the surrounding and hanging body 31 and fixes the surrounding and hanging body 31 and the second rope section, so that the influence of the connecting body 33 on the wearing comfort of the surrounding and hanging body 31 can be reduced, and the wearing experience of a user can be improved.
The connecting body 33 may be a single structure or a multi-part structure, and is not limited herein. Illustratively, as shown in fig. 7 and 8, the connecting body 33 includes a first connecting member 34 and a second connecting member 35, the first connecting member 34 and the second connecting member 35 are connected with each other, and the end of the enclosure body 31 and a part of the second rope segment are clamped between the first connecting member 34 and the second connecting member 35.
The first connecting piece 34 and the second connecting piece 35 are respectively arranged on two sides of the thickness direction of the enclosing and hanging belt 32, the first connecting piece 34 and the second connecting piece 35 are mutually fixed, and the end part of the enclosing and hanging body 31 and the second rope section are reinforced, so that the connecting body 33, the second rope section and the enclosing and hanging body 31 are relatively fixed. The connecting body 33 is divided into the first connecting piece 34 and the second connecting piece 35, so that the clamping area of the enclosing and hanging body 31, the second rope section and the connecting body 33 can be increased, and the connecting stability of the connecting body 33 to the enclosing and hanging body 31 and the second rope section is improved.
The fixing manner of the first connecting element 34 and the second connecting element 35 may be clamping, or may be adhesion, which is not limited herein. For example, as shown in fig. 8 and 9, a through hole 311 is formed at an end of the enclosure body 31, a fixing hole 341 corresponding to the through hole 311 is formed in the first connecting member 34, a through hole 351 corresponding to the through hole 311 is formed in the second connecting member 35, and the through hole 311, the fixing hole 341 and the through hole 351 may be assembled by a fastener. The fastener passes through the through hole 351 and the through hole 311 and then is fixedly matched with the fixing hole 341 so as to connect the first connecting piece 34, the surrounding hanging body 31 and the second connecting piece 35 in series; therefore, the connection process of the first connecting piece 34 and the second connecting piece 35 can be simplified, and the processing efficiency can be improved.
The fixing hole 341 may be formed on the surface of the first connector 34, or may be formed on the protruding structure of the first connector 34. For example, as shown in fig. 8 and 9, a fixing post 342 is convexly disposed on the first connecting member 34, the fixing post 342 passes through the through hole 311 and abuts against the second connecting member 35, and the fixing hole 341 is opened on the fixing post 342. The length of the fixing column 342 is equal to that of the fastening piece, and the fixing hole 341 is formed in the fixing column 342, so that the hole depth of the fixing hole 341 can be increased, the matching area of the fastening piece and the fixing hole 341 can be increased, and the matching strength of the fastening piece and the fixing hole 341 can be improved.
The end of the enclosure 31 may be clamped to the surface of the first connector 34 or may be clamped to the recessed structure of the first connector 34. For example, as shown in fig. 8, the first connecting member 34 is provided with a sinking groove, the fixing post 342 is disposed in the sinking groove, the end of the enclosure body 31 is embedded in the sinking groove, and the second connecting member 35 presses the end of the enclosure body 31 into the sinking groove. Thus, the overall thickness of the connecting body 33 and the surrounding and hanging body 31 can be reduced, and the wearing comfort of the user can be improved.
The first connecting member 34 and the second connecting member 35 can be directly fixed to the enclosure body 31 by fasteners, or can be pre-fixed by a positioning structure. For example, as shown in fig. 8, a positioning protrusion 343 is convexly disposed on the first connecting member 34, a positioning groove is disposed on an end of the enclosure body 31, and the positioning protrusion 343 is in positioning fit with the positioning groove. The positioning protrusion 343 is matched with the positioning groove, so that the first connecting piece 34 is matched with the surrounding and hanging body 31 in a pre-positioning manner, the first connecting piece 34 is prevented from being dislocated with the surrounding and hanging body 31 when the fastening piece is assembled, and the connecting effect of the connecting body 33 and the surrounding and hanging body 31 is improved.
The connecting body 33 may be connected to only one end of the enclosure body 31, or may be connected to both ends of the enclosure body 31, which is not limited herein. Exemplarily, as shown in fig. 8 and fig. 9, the number of the connecting bodies 33 is two, and the two connecting bodies 33 respectively fix the two ends of the enclosure body 31 and the second rope segment. Therefore, the fixing position of the second rope segment and the surrounding and hanging body 31 can be increased, so that the connection stability of the second rope segment and the surrounding and hanging body 31 is improved.
The specific materials of the connecting body 33 and the surrounding hanging body 31 are not limited, and only the requirement that the hardness of the connecting body 33 is greater than that of the surrounding hanging body 31 is met. Illustratively, the connecting body 33 is made of plastic, and the surrounding hanging body 31 is made of leather. Thus, the weight of the connecting body 33 can be reduced to improve the wearing comfort of the user; the wear resistance of the enclosure body 31 can be increased to prolong the service life of the enclosure body 31.
Exemplarily, as shown in fig. 8 and 9, the hand warmer further includes a heating sheet 60 disposed on the hanging body 31, a wire penetrates through the hanging rope 32, and the wire is electrically connected to the heating sheet 60. The heat generating sheet 60 may be provided as a flexible heat generating sheet 60 to be bent and wound along with the enclosure body 31. The heating sheet 60 is an electric heating sheet, and the electric heating sheet can convert electric energy into heat energy to improve the working stability of the heating sheet 60. The heating sheet 60 may have the same length as the protective sleeve so that heat can be generated at various positions of the hanging strip 32.
The hanging rope 32 is physically connected with the surrounding hanging body 31, and the conducting wire is electrically connected with the heating sheet 60. The hanging rope 32 has thicker shape and higher toughness, and cannot be easily broken, so that the reliability of the physical connection state of the hanging rope 32 and the surrounding hanging body 31 can be improved. The heat generating sheet 60 may be powered by an external power source, or may be powered by the battery 100, which is not limited herein. Illustratively, the hand warmer further comprises a battery 100, and the battery 100 is mounted in the receiving cavity 11 and electrically connected with the lead of the hanging rope 32. The battery 100 is used to provide electric energy for the heat generating sheet 60, so that the hand warmer can be used without plugging electricity, thereby improving the convenience of use of the hand warmer.
Illustratively, the hand warmer further comprises an electrically conductive thimble 80 and a circuit board 90, wherein one of the electrically conductive thimble 80 and the circuit board 90 is mounted on the rotating part 20 and electrically connected with the conducting wire, and the other one is mounted on one side of the rotating part 20; the circuit board 90 is electrically connected to the conductive thimble 80, and one end of the conductive thimble 80 can rotate along the surface of the circuit board 90.
The circuit board 90 is electrically connected with the battery 100, the battery 100 is installed in the piece 20 that winds is kept away from one side of the circuit board 90, install battery 100 and circuit board 90 respectively in the epaxial both sides of the piece 20 that winds, can make the inner structure of hand warmer compacter to improve the space utilization who accomodates the chamber 11.
The circuit board 90 is used for providing electric energy for the heating sheet and transmitting a control signal to control the heating sheet to work. The conductive thimble 80 is used to electrically connect the conductive wire with the circuit board 90. The conductive pin 80 is rotatable along the surface of the circuit board 90, wherein the rotation is relative rotation between the conductive pin 80 and the circuit board 90, i.e. one of the conductive pin 80 and the circuit board 90 is stationary and the other one rotates with the rotating element 20.
For example, the circuit board 90 is mounted on the rotating element 20 to rotate with the rotating element 20 and electrically connected to the conducting wire, and the conductive pin 80 is fixedly mounted on one side of the rotating element 20, so that when the circuit board 90 rotates, the conductive pin 80 relatively rotates along the surface of the circuit board 90.
In another embodiment, the conductive thimble 80 is mounted on the winding element 20 to rotate with the winding element 20 and electrically connected to the conductive wires, and the circuit board 90 is located at one side of the winding element 20 in the axial direction. When the rotating element 20 rotates, the conductive wire and the conductive thimble 80 move synchronously with the rotating element 20, so that the conductive thimble 80 and the conductive wire are relatively static, and the conductive thimble 80 and the conductive wire can be stably electrically connected.
The conductive pin 80 can rotate along the surface of the circuit board 90, so that the conductive pin 80 and the circuit board 90 can always keep frictional contact to keep electric conduction, and thus, the conducting wire can keep electric conduction with the circuit board 90 in the releasing or winding process.
The number of the conductive pins 80 may be one or more, and if the number of the conductive pins 80 is one, only one electrode region is disposed on the circuit board 90. For example, as shown in fig. 12, the conductive pins 80 include a positive pin 81 and a negative pin 82, and the positive pin 81 and the negative pin 82 have different distances from the axis of the winding member 20; the circuit board 90 is provided with a positive annular region 91 and a negative annular region 92, wherein one of the positive annular region 91 and the negative annular region 92 is annularly arranged on the other; the positive electrode thimble 81 rotates along the positive electrode annular region 91, and the negative electrode thimble 82 rotates along the negative electrode annular region 92.
The active tracks of the positive thimble 81 and the negative thimble 82 on the surface of the circuit board 90 are annular, so the electrode areas of the circuit board 90 corresponding to the positive thimble 81 and the negative thimble 82 are both annular areas. In order to avoid short circuit between the positive electrode thimble 81 and the negative electrode thimble 82 due to conduction with the same electrode region, the positive electrode annular region 91 and the negative electrode annular region 92 should be staggered, for example, the positive electrode annular region 91 is disposed in the enclosing region of the negative electrode annular region 92. Therefore, the positive electrode thimble 81 and the negative electrode thimble 82 should be staggered from each other in the circumferential direction of the rotating member 20, that is, the distance between the positive electrode thimble 81 and the axis of the rotating member 20 is smaller than the distance between the negative electrode thimble 82 and the axis of the rotating member 20, so that the positive electrode thimble 81 and the negative electrode thimble 82 can be accurately abutted to the positive electrode annular region 91 and the negative electrode annular region 92, respectively.
For example, as shown in fig. 12, the circuit board 90 is provided with a first annular groove and a second annular groove, the positive annular region 91 is formed in the first annular groove, and the negative annular region 92 is formed in the second annular groove. The first annular groove and the second annular groove can play a role in hiding the positive annular region 91 and the negative annular region 92 in a sunken manner, so that the positive annular region 91 and the negative annular region 92 are effectively separated, and the positive annular region 91 and the negative annular region 92 are prevented from being easily short-circuited due to conductive impurities.
The conductive pins 80 may be rigid pins or elastic retractable pins. Illustratively, the conductive thimble 80 is an elastic retractable thimble; the conductive thimble 80 includes a needle body and a needle head telescopically engaged with the needle body, and the needle head is connected with the needle body through an elastic member. The needle body is connected in the piece that winds 20, and the syringe needle butt is in circuit board 90, and at the butt state, the elastic component is compressed to the syringe needle can receive the elasticity restoring force effect of elastic component all the time, with the butt stability of keeping with circuit board 90.
The end of the conductive thimble 80 abutting against the circuit board 90 may be a plane or an arc, which is not limited herein. For example, as shown in fig. 13, one end of the conductive thimble 80 abutting against the circuit board 90 is configured as a convex arc surface. The convex arc surface can reduce the frictional resistance between the conductive thimble 80 and the circuit board 90 and prevent the conductive thimble 80 from scratching the circuit board 90, thereby improving the protection effect on the circuit board 90 and improving the smooth rotation of the conductive thimble 80.
The conductive thimble 80 may be connected to the peripheral wall of the conductive wire or may be connected to the end of the conductive wire, which is not limited herein. Illustratively, the conductive thimble 80 is electrically connected to an end of the conductive wire near the axial center of the rotating member 20. One end of the conducting wire close to the axis of the rotating and winding member 20 can be directly fixed on the conducting thimble 80, so that the conducting wire can be stably and electrically connected with the conducting thimble 80, and the conducting wire can be prevented from being separated from the rotating and winding member 20.
The circuit board 90 may transmit power through an external power source, or may transmit power through the battery 100, which is not limited herein. Illustratively, as shown in fig. 13, the hand warmer further includes a battery 100, and the battery 100 is mounted on a side of the winding member 20 away from the circuit board 90 and electrically connected to the circuit board 90. The battery 100 is used for providing electric energy for the circuit board 90, so that the hand warmer can be used without plugging electricity, and the use convenience of the hand warmer is improved. Installing battery 100 and circuit board 90 respectively in the ascending both sides of commentaries on classics around 20 axles, can making hand warmer's inner structure compacter to improve the space utilization who accomodates chamber 11.
Illustratively, as shown in fig. 10 to 12, the circuit board 90 includes a first plate 93 and a second plate 94, the first plate 93 is annular and is disposed coaxially with the winding member 20, and the conductive thimble 80 rotates along a surface of the first plate 93; one end of the second plate 94, which is far away from the first plate 93, protrudes from the peripheral wall of the winding member 20, and the battery 100 is electrically connected to one end of the second plate 94, which is far away from the first plate 93.
The first plate 93 is used for the conductive thimble 80 to slide and abut against, and the second plate 94 is used for the battery 100 to electrically connect. Thus, the distance between the abutting position of the conductive thimble 80 and the circuit board 90 and the connecting position of the battery 100 and the circuit board 90 can be increased, so that the conductive thimble 80 and the rotating member 20 can be prevented from interfering with the conducting wires between the battery 100 and the second plate body 94 during the rotation process, and the electrical connection stability of the circuit board 90 and the battery 100 and the conductive thimble 80 can be improved.
Illustratively, as shown in fig. 10, 11 and 13, the hand warmer further includes a control button 70 mounted on the housing 10, and the control button 70 is electrically connected to an end of the second plate 94 away from the first plate 93. The control button 70 can turn on or off the heating sheet through the circuit board 90, and can also adjust the heating temperature of the heating sheet. The control key 70 is electrically connected to one end of the second board 94 far from the first board 93, so that interference of the rotating process of the rotating member 20 on a wire between the control key 70 and the second board 94 can be avoided, and the stability of electrical connection between the control key 70 and the circuit board 90 can be ensured.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (15)
1. A hand warmer, comprising:
the shell is provided with a containing cavity and a drawing opening communicated with the containing cavity;
the rotating and winding piece is rotatably arranged in the containing cavity, and the drawing opening is positioned on the peripheral side of the rotating and winding piece;
the hanging rope is wound on the winding piece and can be pulled out of the containing cavity through the drawing opening or wound back into the containing cavity by the winding piece;
and the braking part is arranged on the shell and used for controlling the telescopic state of the hanging rope.
2. The hand warmer of claim 1, wherein the brake member comprises a control switch mounted to the housing and a brake portion located in the receiving chamber and linked with the control switch; when the control switch is not pressed, the braking part unidirectionally brakes the winding piece; when the control switch is pressed, the brake part releases the rotating and winding piece.
3. The hand warmer of claim 2, wherein the brake member further comprises a lever portion rotatably mounted to the receiving chamber, the lever portion having one end connected to the control switch and the other end connected to the brake portion; when the control switch is pressed, the braking part releases the rotating and winding piece.
4. The hand warmer of claim 3, wherein the rotating member is formed with a limiting protrusion having a limiting surface and a guiding inclined surface, the limiting surface and the guiding inclined surface being disposed away from each other in a circumferential direction of the rotating member; when the rotating and winding piece rotates forwards to release the hanging rope, the guide inclined plane is in slidable butt joint with the braking part; when the winding piece rotates to wind the hanging rope, the limiting surface is in brake butt joint with the braking portion.
5. The hand warmer of claim 4, further comprising a reset spring mounted to the receiving chamber and coupled to the winding member for driving the winding member to wind the hanging cord;
and/or the braking part is provided with a matching surface and a avoiding inclined surface which are arranged oppositely; when the rotating and winding piece rotates forwards to release the hanging rope, the guide inclined plane is in slidable butt joint with the avoiding inclined plane; when the rotating and winding piece rotates to wind the hanging rope, the matching surface is in braking butt joint with the limiting surface;
and/or the peripheral wall of the rotating and winding piece is connected with a rotating disc, the rotating disc extends along the circumferential direction of the rotating and winding piece, and the limiting bulge is convexly arranged on the peripheral wall of the rotating disc.
6. The hand warmer of claim 5, wherein a limiting rib is protruded from the fitting surface, and when the fitting surface is in braking abutment with the limiting surface, the limiting rib abuts against the limiting protrusion in a radial direction of the rotating member.
7. The hand warmer according to claim 3, wherein a connecting shaft is convexly arranged on the cavity wall of the receiving cavity, and a connecting hole is formed in the lever part and is rotatably matched with the connecting shaft;
and/or, the quantity of spacing arch is a plurality of, and is a plurality of spacing arch is followed the circumference interval of commentaries on classics piece sets up.
8. The hand warmer of claim 1, further comprising a hanging belt and a heating sheet, wherein the hanging belt comprises a hanging body and the hanging rope, and the hanging body is fixedly connected with the hanging rope; the heating piece is arranged on the surrounding and hanging body, a wire penetrates through the hanging rope, and the wire is electrically connected with the heating piece.
9. The hand warmer of claim 8, further comprising a battery, an electrically conductive thimble, and a circuit board, one of the electrically conductive thimble and the circuit board being mounted to the winding member and electrically connected to the conductive wire, the other being mounted to a side of the winding member; the circuit board is electrically abutted against the conductive thimble, and one end of the conductive thimble can rotate along the surface of the circuit board; the circuit board is electrically connected with the battery.
10. The hand warmer of claim 9, wherein said conductive thimble is mounted to said rotating member for rotation therewith and electrically connected to said conductive wire, said circuit board being located on one side of said rotating member in an axial direction thereof.
11. The hand warmer of claim 10, wherein the electrically conductive pins comprise a positive pin and a negative pin, and the positive pin and the negative pin are spaced apart from the axis of the rotating member; the circuit board is provided with a positive annular area and a negative annular area, and one of the positive annular area and the negative annular area is arranged on the other in an encircling manner; the positive thimble rotates along the positive annular region, and the negative thimble rotates along the negative annular region.
12. The hand warmer of claim 11, wherein the circuit board 9 defines a first annular groove and a second annular groove, the positive annular region being formed in the first annular groove, and the negative annular region being formed in the second annular groove.
13. The hand warmer of claim 8, wherein the hanging strap further comprises a connector, the connector fixedly connects the hanging body to the hanging rope, and the connector has a hardness greater than a hardness of the hanging body.
14. The hand warmer of claim 13, wherein the hanging cord comprises a first cord segment and a second cord segment, the first cord segment being wound around the winding member, the first cord segment being capable of being pulled out of the receiving cavity through the draw opening or being wound back into the receiving cavity by the winding member;
the second rope section penetrates through the surrounding and hanging body, and the connecting body is connected to the end part of the surrounding and hanging body and fixes the surrounding and hanging body and the second rope section.
15. The hand warmer of claim 14, wherein said connector comprises a first connector and a second connector, said first connector and said second connector being connected to each other, said end portion of said enclosure and a portion of said second cord section being clamped between said first connector and said second connector.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN2022218921735 | 2022-07-21 | ||
CN202221892173 | 2022-07-21 |
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CN115462948A true CN115462948A (en) | 2022-12-13 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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CN202222489625.1U Active CN219963231U (en) | 2022-07-21 | 2022-09-20 | hand warmer |
CN202211146372.6A Pending CN115462948A (en) | 2022-07-21 | 2022-09-20 | Hand warmer |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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CN202222489625.1U Active CN219963231U (en) | 2022-07-21 | 2022-09-20 | hand warmer |
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CN (2) | CN219963231U (en) |
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2022
- 2022-09-20 CN CN202222489625.1U patent/CN219963231U/en active Active
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