CN114991607A - Easy dismouting, atress are deviate from door-hinge system and adopt its on-vehicle refrigerator - Google Patents
Easy dismouting, atress are deviate from door-hinge system and adopt its on-vehicle refrigerator Download PDFInfo
- Publication number
- CN114991607A CN114991607A CN202210506638.7A CN202210506638A CN114991607A CN 114991607 A CN114991607 A CN 114991607A CN 202210506638 A CN202210506638 A CN 202210506638A CN 114991607 A CN114991607 A CN 114991607A
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- China
- Prior art keywords
- shaft
- door
- door body
- shaft sleeve
- sliding contact
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
- E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
- E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D9/00—Flaps or sleeves specially designed for making from particular material, e.g. hoop-iron, sheet metal, plastics
- E05D9/005—Flaps or sleeves specially designed for making from particular material, e.g. hoop-iron, sheet metal, plastics from plastics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
Abstract
The invention provides an easily-disassembled and assembled door shaft system, which comprises a box body and a door body, wherein a shaft body is arranged on the box body, a shaft sleeve is arranged on the door body, a limiting device is arranged on the door body and/or the box body, the shaft sleeve is made of an elastic deformation material, the door body and the box body are connected through the shaft body and the shaft sleeve, the limiting device limits the rotation of the shaft body in the shaft sleeve under the condition that the door body is completely opened, and under the condition that the door body is completely opened: the distance between two opposite shaft sleeve sliding contact surfaces of the shaft sleeve when the two opposite shaft sleeve sliding contact surfaces are elastically deformed under the interaction of the gravity of the door body, the limiting device, the shaft body and the shaft sleeve is smaller than the diameter of the cylinder where the shaft body is located, and the distance between the two opposite shaft sleeve sliding contact surfaces of the shaft sleeve when the two opposite shaft sleeve sliding contact surfaces are elastically deformed under the interaction of the door body stress F, the limiting device, the shaft body and the shaft sleeve can be larger than or equal to the diameter of the cylinder where the shaft body is located.
Description
Technical Field
The invention relates to a door spindle system which is easy to assemble and disassemble and can be disengaged under stress and a vehicle-mounted refrigerator adopting the door spindle system.
Background
The storing box adopts the door pivot to connect a body usually, and for the convenience open a body, the portion of gripping of opening a body lies in the distal end of keeping away from the door pivot tie point on the body usually, for the convenience take out storage article in the box, and the door body need be opened more than 90 degrees usually, when the door body opened and continues to receive the effort of opening the direction behind the maximum angle, and stress concentration is regional in the door pivot, opens easily to make the regional emergence of door pivot warp damage even repeatedly. For the vehicle-mounted refrigerator, the vehicle-mounted refrigerator needs to be frequently carried and limited by the space in the vehicle, and the specific requirements on volume and weight design need to be met, so that the material for preparing the shell of the vehicle-mounted refrigerator cannot be too thick and heavy, the stress impact of a door shaft region can be limited, and particularly, when a door body is repeatedly subjected to large accidental stress in an opening state, fatigue damage or damage can be caused due to stress concentration of the door shaft region, and the performance and the use of the vehicle-mounted refrigerator are influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the following technical scheme, which comprises the following implementation modes:
embodiment 1. an easily disassembled and assembled door shaft system, which comprises a box body and a door body, wherein the box body is provided with a shaft body, the door body is provided with a shaft sleeve, the door body and/or the box body is/are provided with a limiting device, it is characterized in that the outer surface of the shaft body comprises a shaft body sliding contact surface and a shaft body rotating contact surface, wherein the rotating contact surface of the shaft body is superposed with the outer surface of the cylinder where the shaft body is positioned, the sliding contact surface of the shaft body comprises two opposite parts on the shaft body, the minimum distance between the parallel tangents of the shaft body that are in contact with the shaft body sliding contact surface (referred to as the minimum parallel tangent distance) is smaller than the diameter of the cylinder in which the shaft body is located, the shaft sleeve is provided with an inner opening and a side opening, and the side opening is provided with two opposite shaft sleeve sliding contact surfaces which are matched with the shaft body sliding contact surface; the inner opening is provided with a shaft sleeve rotating contact surface which is matched with the shaft body rotating contact surface, so that the shaft body can pass through the shaft body along the direction of the minimum parallel tangent lineThe side opening of axle sleeve slides in or roll-off the axle sleeve, the axle sleeve rotate the contact surface with the axis body rotates the contact surface and mutually supports, realizes the rotation of axis body in the axle sleeve, the axle sleeve adopts the material that has elastic deformation to make, the door body and box pass through axis body and bushing, stop device restricts the rotation of axis body in the axle sleeve under the circumstances that the door body was opened completely to under the circumstances that the door body was opened completely: the distance between two opposite shaft sleeve sliding contact surfaces of the shaft sleeve when the two opposite shaft sleeve sliding contact surfaces are elastically deformed under the interaction of the gravity of the door body, the limiting device, the shaft body and the shaft sleeve is smaller than the diameter (L) of the cylinder where the shaft body is located 0 +L G ＜d Shaft ) The distance between two opposite sliding contact surfaces of the shaft sleeve when the door body is elastically deformed under the interaction of the door body stress F, the limiting device, the shaft body and the shaft sleeve can be more than or equal to the diameter (L) of the cylinder where the shaft body is located 0 +L G+F ≥d Shaft )。
Embodiment 3 the easy-to-mount/dismount door spindle system according to embodiment 1, wherein F acts on the distal end of the door body and has a size of 5-30 newtons.
Embodiment 4. the easy detachable door shaft system according to embodiment 1, wherein a recess is formed at the side opening of the shaft sleeve, so that the elastic deformation size at the side opening is increased.
Embodiment 5. the easy-to-detach door shaft system according to embodiment 1, wherein the position limiting device is disposed on the door body and/or the box body near the rotation axis of the door body, when the door body is fully opened, the door body and the box body abut against each other through the position limiting device, and on the rotation plane where the door body is opened, the distance from the position where the door body and the box body abut against each other to the side opening is 1/20 to 1/5 of the width of the door body.
Embodiment 6 the easy-to-dismount-door-spindle system according to embodiment 1, wherein the spindle-body sliding-contact-surface comprises, or consists essentially of, one or more parallel planes, the distance between said parallel planes being between 1/3 and 5/6, preferably between 2/5 and 2/3, of the diameter of the cylinder in which the spindle body is located.
Embodiment 7 the easy-to-dismount-and-mount door shaft system according to embodiment 1, wherein the shaft body sliding contact surface comprises one or two elliptical surfaces, wherein the minimum parallel tangential distance is between 1/3 and 5/6 of the diameter of the cylinder in which the shaft body is located.
Embodiment 8 is the easy-to-mount/dismount door shaft system according to embodiment 1, wherein there are two sets of sliding contact surfaces of the shaft body, an included angle between parallel tangents of the two sets of shaft body contacting with the two sets of sliding contact surfaces of the shaft body is 30 to 120 degrees, and a difference between a minimum distance between any one set of parallel tangents and a distance between the two opposite sliding contact surfaces of the shaft sleeve is less than 2 times, 3 times, 4 times, or 5 times of a machining error.
Embodiment 9. the easy-to-dismount/mount door spindle system according to embodiment 1, wherein the outside of the side opening of the bushing has a bushing sliding contact surface flare, and the width of the flare is larger than the distance between the two opposite bushing sliding contact surfaces.
Embodiment 11 is an in-vehicle refrigerator including the easy-to-mount/dismount door hinge system according to any one of embodiments 1 to 10.
The technical effects of the invention comprise: the shaft body of the door shaft system slides into the shaft sleeve and then rotates for a certain angle to form stable connection, and after the shaft body rotates for an opposite angle, the shaft body slides out of the shaft sleeve to be quickly separated, so that the door shaft system is very convenient to install and disassemble. Because the axle sleeve adopts the material that has elastic deformation to make, when the door body receives the continuation atress after opening completely, under stop device, axis body and axle sleeve interact, axle sleeve side opening department atress produced the elastic deformation expansion for distance between two relative axle sleeve sliding contact faces increases, the axis body is deviate from along the side opening of expansion the axle sleeve, the axle body deviates from the axle sleeve, and the axle body can go on repeatedly. When being applied to the storage box body such as the connecting structure between the box body and the door body of the vehicle-mounted refrigerator, the door body can be detached through the small-angle rotation of the door body to completely open the storage box body, the door body is separated from the shaft sleeve to separate the door body from the box body when being completely opened and stressed by a large accident, and the damage caused by the overlarge stress of the connecting area of the door body and the box body is avoided. The solution according to the present application also brings numerous other advantages, which will be explained in detail in the detailed description.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.
FIG. 1 is a perspective view of an in-vehicle refrigerator according to embodiment 1 of the present application;
FIG. 2 is a schematic cross-sectional view of a door shaft system connection for a vehicle refrigerator;
FIG. 3 is a partial schematic view of the door spindle system within the dashed circle of FIG. 2;
fig. 4 to 7 are schematic views of the shaft body and the shaft sleeve according to embodiment 1;
FIGS. 8 and 9 are schematic views of the lower door spindle region with the door fully open;
FIG. 10 is a schematic view showing the elastic deformation at the side opening of the sleeve;
fig. 11 and 12 are schematic views of the door shaft region when the door body is fully opened in embodiment 2.
Reference numerals: 10-box body, 20-door body, 30-limiting device, 100-axle body, 110-axle body sliding contact surface, 120-axle body rotating contact surface, 200-axle sleeve, 201-far end edge of the door body, 210-inner opening, 211-axle sleeve rotating contact surface, 220-side opening, 221-axle sleeve sliding contact surface, 222-flaring, 223-groove and 301-position where the door body and the box body abut against each other.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Terms in this application have meanings commonly understood by those skilled in the art, which are otherwise explicitly defined or stated to the contrary.
The application discloses an easily-detachable door spindle system, which comprises a box body and a door body, wherein a spindle body is arranged on the box body, the door body is provided with a shaft sleeve, the door body and/or the box body are/is provided with a limiting device, it is characterized in that the outer surface of the shaft body comprises a shaft body sliding contact surface and a shaft body rotating contact surface, wherein the rotating contact surface of the shaft body is superposed with the outer surface of the cylinder where the shaft body is positioned, the sliding contact surface of the shaft body comprises two opposite parts on the shaft body, the minimum distance between the parallel tangents of the shaft body that are in contact with the shaft body sliding contact surface (referred to as the minimum parallel tangent distance) is smaller than the diameter of the cylinder in which the shaft body is located, the shaft sleeve is provided with an inner opening and a side opening, and the side opening is provided with two opposite shaft sleeve sliding contact surfaces which are matched with the shaft body sliding contact surface; the inner opening is provided with a shaft sleeve rotating contact surface used for being matched with the shaft body rotating contact surface, so that the shaft body can slide in or slide out of the shaft sleeve along the direction of the minimum parallel tangent line through the side opening of the shaft sleeve, the shaft sleeve rotating contact surface and the shaft body rotating contact surface are matched with each other to realize the rotation of the shaft body in the shaft sleeve, the shaft sleeve is made of a material with elastic deformation, the door body and the box body are connected through the shaft body and the shaft sleeve, the limiting device limits the rotation of the shaft body in the shaft sleeve under the condition that the door body is completely opened and the door bodyIn the case of full opening: the distance between two opposite shaft sleeve sliding contact surfaces of the shaft sleeve when the two opposite shaft sleeve sliding contact surfaces are elastically deformed under the interaction of the gravity of the door body, the limiting device, the shaft body and the shaft sleeve is smaller than the diameter (L) of the cylinder where the shaft body is located 0 +L G ＜d Shaft ) The distance between two opposite sliding contact surfaces of the shaft sleeve when the door body is elastically deformed under the interaction of the door body stress F, the limiting device, the shaft body and the shaft sleeve can be more than or equal to the diameter (L) of the cylinder where the shaft body is located 0 +L G+F ≥d Shaft )。
The cylinder that the axis body place is a virtual cylinder, the axis body rotates the coincidence of contact surface and this virtual cylinder's at least partial face of cylinder. The parallel tangent line of axis body refers to the extending direction (the direction of axis of rotation when door shaft system rotates promptly) looks perpendicular and respectively with two relative axis body sliding contact surface contacts on the axis body, does not get into two parallel lines of axis body again of axis body. Among all the parallel tangents, the parallel tangent line having the smallest distance between two parallel lines is called the smallest parallel tangent line, and the distance is the smallest parallel tangent line distance. The minimum parallel tangent distance of the shaft body is limited to be smaller than the diameter of the cylinder where the shaft body is located, namely at least one of the two parallel lines is in contact with the sliding contact surface of the shaft body in the cylinder where the shaft body is located. When only one line of the two parallel lines is in contact with the sliding contact surface of the shaft body in the cylinder where the shaft body is located, the sliding contact surface of the shaft body corresponding to the other line is superposed with a part of the rotating contact surface of the shaft body, namely the other line is in contact with the outer surface of the cylinder where the shaft body is located.
In this application, in order to form the cooperation relation between axle sleeve sliding contact face and the axis body sliding contact face to and the axle sleeve rotates the cooperation relation between contact face and the axis body rotation contact face, open-ended opening size depends on minimum parallel tangential distance, interior open-ended size depends on the diameter of the cylinder at axis body place, this application is injectd the minimum parallel tangential distance of axis body is less than the diameter of the cylinder at axis body place, promptly open-ended opening size is less than interior open-ended size makes thereby can't deviate from promptly and form firm connection after the axis body gets into the axle sleeve and rotates certain angle, only rotate the position relation that the axis body got into the axle sleeve moment again with the axis body axle sleeve and just can realize the two separation, thereby realize the dismantlement and the installation of door axle body system, reach the effect of "easy dismouting". In this application, open-sided open size indicates when elastic deformation did not take place for the axle sleeve distance between two relative axle sleeve sliding contact faces on the side opening, interior open-ended size indicate with the diameter of the virtual cylinder of the at least partial coincidence of the pitch arc of the axle sleeve rotation contact surface on the interior open-ended.
In the present application, elastic deformation (also called elastic deformation) refers to deformation of a material under the action of an external force, and when the external force is cancelled, the deformation of the material disappears and the original shape is completely restored, and the important characteristic of the elastic deformation is the reversibility of the material. This application the axle sleeve adopts the material that has elastic deformation to make, makes the side opening expands because of producing elastic deformation when the atress, and the distance increase between two relative axle sleeve sliding contact faces, and after external force cancellation, side opening elastic deformation disappears.
The door body and the box body are connected through the shaft body and the shaft sleeve, the limiting device limits the rotation of the shaft body in the shaft sleeve under the condition that the door body is completely opened, at the moment, if the door body continues to receive acting force along the opening direction, the door body is stressed and transmitted to the shaft sleeve, and the side opening generates elastic deformation.
Under the condition that the door body is completely opened, the elastic deformation of the side opening meets the following requirements: l is 0 +L G ＜d Shaft At this time, the shaft body cannot be separated from the shaft sleeve.
Under the condition that the door body was opened completely, when the door body atress F, the open-sided elastic deformation can satisfy: l is 0 +L G+F ≥d Shaft At this time, the shaft body is separated from the shaft sleeve, elastic deformation of the side opening disappears after the shaft body is separated from the shaft sleeve, and the distance between two opposite shaft sleeve sliding contact surfaces on the side opening is restored to be L 0 。
Wherein L is 0 Refers to the opening size of the side opening; l is G When the door body is completely opened, the side opening is in the elastic deformation size under the action of the gravity G of the door body; l is a radical of an alcohol G+F When the door body is completely opened, the side opening is subjected to the elastic deformation size under the combined action of the gravity G and the external force F of the door body; d Shaft Refers to the diameter of the cylinder on which the shaft body is located. This application the elastic deformation size indicates when the side opening atress produced the elastic deformation expansion, because of the distance of elastic deformation increase between two relative axle sleeve sliding contact faces on the side opening.
The door body can deviate from the elastic deformation range of the shaft sleeve when being subjected to external force, the effect of 'force deviation' is achieved, the condition that the shaft sleeve and the adjacent door shaft region suffer irreversible deformation or damage due to overlarge force is avoided, due to the reversibility of elastic deformation, the deviation can be carried out repeatedly, and after the door body falls off, the shaft body can slide into the shaft sleeve through the side opening of the shaft sleeve along the direction of the minimum parallel tangent line, and stable connection is formed.
This application stop device only need satisfy under the circumstances that the door body was opened completely the restriction axis body in the rotation of axle sleeve can, can set up on the door body, also can set up on the box, perhaps set up simultaneously at the door body and box, the door body and the box can be in the area of the mutual contact of door spindle department when the door body was opened completely, technical personnel in the field can the reasonable selection set up.
The application "deviate from" or "the atress is deviate from" means that the axis body is in the axle sleeve elastic deformation within range, through the process that the axle sleeve side opening of expansion breaks away from the axle sleeve, "slide in" or "get into", "roll off" means that the process that axis body and axle sleeve realize connecting, separating along axle sleeve sliding contact surface.
In the present application, the shaft body in the door shaft system is made of metal such as copper, iron or alloy. The specific choice of the metal is not limited as long as the specific application scene needs can be met, and those skilled in the art can make an appropriate choice according to actual needs.
In some embodiments, the material having elastic deformation is selected from polyethylene, polyvinyl chloride, polypropylene, polystyrene, ABS plastic, polycarbonate, nylon, polyurethane, polytetrafluoroethylene, polyethylene terephthalate. The selection of the shaft sleeve material not only has the function of generating enough elastic deformation size to meet the requirement that the shaft body is taken out from the side opening in the elastic deformation range of the shaft sleeve, but also needs to consider the difficulty of the material in generating elastic deformation, namely, the material generates stress required by unit elastic deformation under the action of external force, and the difficulty of the material in generating elastic deformation can be measured by adopting an elastic modulus in engineering application. If the material elastic modulus is too big, then the axle sleeve is deviate from and needs too high exogenic action, is difficult to avoid the door body and the too big emergence of the regional atress of box and damages, if the material elastic modulus undersize, then the connection of axis body and axle sleeve is firm inadequately, even also probably take place the axle sleeve to deviate from because of exogenic action under the state that the door body was not opened completely and thereby influence the use. This application the material can enough satisfy the axis body and rotate certain angle behind the slip-in axle sleeve and form enough firm connection, can receive when great exogenic action at stop device, axis body and axle sleeve interact again at the door body, the axis body is deviate from the side opening in the elastic deformation within range of axle sleeve. Those skilled in the art can select materials having similar properties to these materials.
In some embodiments, the F acts on the distal end of the door body and has a magnitude of 5-30 newtons. Such setting enables the door body and can deviate from under appropriate effort, and the person of facilitating the use can easily pull down the door body under the condition without the help of other instruments. The far end of the door body refers to the far end relative to the rotating shaft of the door body, namely the area of the door body far away from the rotating shaft. In the plane that the door body is rotatory, the distal end of the door body has the bigger arm of force for the near-end of the door body, and the power F that acts on the distal end of the door body can make the axle sleeve side opening take place elastic deformation and make the door body deviate from under stop device, axis body and axle sleeve interact.
In some embodiments, the side opening of the sleeve is provided with a groove, so that the elastic deformation size at the side opening is increased. Set up the recess and both reduced axle sleeve side opening department and taken place the required stress of unit elastic deformation, can increase the displacement of axle sleeve side opening part again in equal elastic deformation within range, increase promptly distance between two relative axle sleeve sliding contact faces of axle sleeve makes the elastic deformation ability of axle sleeve increases, is convenient for adopt the relatively poor material of elastic deformation.
In some embodiments, the limiting device is disposed on the door body and/or the cabinet body near the rotation axis of the door body, when the door body is fully opened, the door body and the cabinet body abut against each other through the limiting device, and on the rotation plane where the door body is opened, the distance from the abutting position of the door body and the cabinet body to the side opening is 1/20 to 1/5 of the width of the door body. The door body width indicates the size of the far-end edge of the door body to the side opening, because the limiting device is close to the door body rotating shaft, the door body width is approximately equal to the distance between the far-end edge of the door body and the mutual leaning position of the door body and the box body. And under the condition that the door body is completely opened, a lever taking the mutual abutting position of the door body and the box body as a fulcrum is formed between the side opening and the force bearing point of the door body under the force F. The door body continues to receive acting force (power) along the opening direction and makes the axle body deviates from the in-process of axle sleeve, the distance that leans on the department each other from the door body stress point to the door body and box is power arm promptly, when acting on the distal end edge of the door body along acting force (power) of opening direction, the door body width is lever power arm promptly, leans on the department each other from the door body and box and arrives the open-sided distance is lever resistance arm promptly, the resistance acts on axle sleeve side opening part to make the side opening take place elastic deformation expansion, make the distance increase between two relative axle sleeve sliding contact surfaces of axle sleeve, and make the axle body deviate from the axle sleeve. Because the door body width is far greater than from the door body and the box each other support to lean on the department to the open-sided distance to can make axle sleeve side open department take place elastic deformation and deviate from until the axis body through the power of the distal end of less effect on the door body, through leverage.
In some embodiments, the shaft sliding contact surface comprises, or consists essentially of, one or more sets of parallel planes separated by a distance between 1/3 and 5/6, preferably 2/5 and 2/3, of the diameter of the cylinder in which the shaft is located. The sliding contact surface of the shaft body including the plane can generate smooth hand feeling, and especially when the plane is parallel, the comfort can be improved.
In some embodiments, the shaft body sliding interface comprises one or two elliptical surfaces, wherein the minimum parallel tangential distance is between 1/3 and 5/6 of the diameter of the cylinder in which the shaft body is located. The oval surface means that the cross section of any axis body sliding contact surface coincides with a part of an oval curve, and the oval surface enables the sliding contact surface to have a narrower end part, namely, the position close to the axis body rotating contact surface is narrower, so that the axis body slides into the axis sleeve from the narrow end part more conveniently.
In some embodiments, the two sets of sliding contact surfaces of the shaft body exist in the door shaft system, an included angle between parallel tangents of the two sets of shaft bodies contacting with the two sets of sliding contact surfaces of the shaft body is 30 to 120 degrees, and a difference between a minimum distance between any one set of parallel tangents and a distance between the two opposite sliding contact surfaces of the shaft sleeve is less than 2 times, 3 times, 4 times, or 5 times of a machining error. At least one of two parallel lines of any one group of the two parallel tangent lines of the two groups of the shaft bodies is in contact with a sliding contact surface of the shaft body in the cylinder where the shaft body is located, and the minimum parallel tangent distance of any one group of the shaft bodies is smaller than the diameter of the cylinder where the shaft body is located, so that the shaft body can slide in or slide out of the shaft sleeve through the side opening of the shaft sleeve along the direction of any one group of the minimum parallel tangent lines, and the door shaft system can be disassembled and assembled from two different angles. The distance between the two opposite shaft sleeve sliding contact surfaces is the minimum size of the shaft sleeve side opening, the minimum distance (namely the minimum parallel tangent distance) between any group of parallel tangents is the maximum size of the shaft body in the sliding direction, and the difference between the minimum distance and the minimum parallel tangent distance is smaller than 2 times, 3 times, 4 times or 5 times of processing error, so that the shaft body and the shaft sleeve are matched more closely when sliding into the shaft sleeve through the side opening.
In some embodiments, the outside of the side opening of the bushing has a bushing sliding contact surface flare having a width greater than the distance between the two opposing bushing sliding contact surfaces. Therefore, the shaft body can slide into the side opening under the guidance of the flaring, and the installation is more convenient.
In some embodiments, the area of the shaft sliding contact surface is equal to or less than the area of the shaft rotating contact surface. A larger rotational contact area of the shaft body can provide more stable rotational performance.
The application also discloses an on-vehicle refrigerator adopting the easily detachable door spindle system. After the door body in a closed state is rotated by a certain angle, the door body can be detached by sliding the shaft body out of the shaft sleeve, so that articles can be taken from the vehicle-mounted refrigerator conveniently. Under the state that the door body was opened completely, through applying external force to the door body, the elastic deformation expansion of accessible axle sleeve makes the axis body deviate from the axle sleeve and realizes the quick dismantlement of the door body, and especially the door body is when receiving unexpected atress under the state of opening completely, and the axis body deviates from the axle sleeve and makes door body and box separation, avoids the too big emergence of door body and box connected region atress to damage, prolongs the life of on-vehicle refrigerator.
The ranges described above may be used alone or in combination. The present application can be more easily understood by the following examples.
Examples
Example 1
Referring to fig. 1 to 3, the embodiment discloses an on-vehicle refrigerator connected by an easily detachable door shaft system, which includes a refrigerator body 10, a door body 20 and a limiting device 30, wherein two shaft bodies 100 are arranged on the refrigerator body 10, two shaft sleeves 200 are arranged on the door body 20, the limiting device 30 is a protrusion arranged on the door body 20 near the shaft sleeves 200, the refrigerator body 10 and the door body 20 are connected by two sets of shaft bodies 100 and shaft sleeves 200 which are oppositely arranged (as shown in fig. 1), and the limiting device 30 can abut against the upper edge of the refrigerator body 10 when the door body 20 is completely opened, so as to limit the rotation of the shaft bodies 100 in the shaft sleeves 200.
Referring to fig. 4 and 5, the outer surface of the shaft body 100 includes a shaft body sliding contact surface 110 and a shaft body rotating contact surface 120, where the shaft body rotating contact surface 120 coincides with the outer surface of a cylinder where the shaft body is located (the dotted line in fig. 5 shows the cross section of the virtual cylinder), the diameter of the cylinder where the shaft body is located is 1.2cm, the shaft body sliding contact surface 110 includes two mutually parallel planes opposite on the shaft body 100, and the minimum distance between parallel tangents of the shaft body contacting the two shaft body sliding contact surfaces 110 is 0.9cm (referred to as a minimum parallel tangent distance, fig. 5 shows the parallel tangents of the shaft body), and the minimum parallel tangent distance is smaller than the diameter of the cylinder where the shaft body is located.
The shaft sleeve 200 has an inner opening 210 and an side opening 220, the side opening 220 has two opposite shaft sleeve sliding contact surfaces 221 for matching with the shaft body sliding contact 110, the inner opening 210 has a shaft sleeve rotating contact surface 211 for matching with the shaft body rotating contact surface 120, so that the shaft body 100 can slide in or out of the shaft sleeve 200 through the side opening 220 of the shaft sleeve 200 along the direction of the minimum parallel tangent line, and the shaft sleeve rotating contact surface 211 and the shaft body rotating contact surface 120 are matched with each other, thereby realizing the rotation of the shaft body 100 in the shaft sleeve 200. The outer side of the side opening 220 of the shaft sleeve is provided with a shaft sleeve sliding contact surface flared opening 222, the width of the flared opening 222 is larger than the distance between the two opposite shaft sleeve sliding contact surfaces 221, and the maximum width of the flared opening 222 is 1.5cm, so that the shaft body 100 can be guided into the side opening 220 through the flared opening 222, and the installation is more convenient. The difference between the opening size of the side opening and the minimum parallel tangent distance is smaller than 2 times of the machining error, namely the opening size of the side opening is slightly larger than 0.9cm, so that the shaft body and the shaft sleeve are tightly matched.
The shaft sleeve 200 is made of elastic deformation material ABS plastic, so that the side opening expands due to elastic deformation when stressed, the distance between two opposite shaft sleeve sliding contact surfaces is increased, and the side opening elastic deformation disappears after the external force is cancelled.
Referring to fig. 6 and 7, after the shaft body 100 slides into the shaft sleeve 200 and rotates a certain angle, a stable connection is formed (fig. 7 sequentially shows the process that the shaft body slides into the shaft sleeve from the side opening and the shaft sleeve rotates to form the stable connection after rotating from left to right), and only when the shaft body and the shaft sleeve rotate again, the position relationship at the moment when the shaft body enters the shaft sleeve can realize the separation of the shaft body and the shaft sleeve, so that the quick assembly and disassembly of the door shaft system can be realized. The vehicle-mounted refrigerator adopting the door shaft system can realize the quick assembly and disassembly of the door body, when the door body 20 is opened, the shaft sleeve 200 rotates around the shaft body 100, when the door body rotates to a specific angle, the whole door body 20 can be disassembled by sliding the shaft body 100 out, articles in the refrigerator can be conveniently taken out, or the door body 20 is quickly installed and stably connected.
Referring to fig. 8, when the door body is fully opened, the door body 20 abuts against a place 301 where the door body and the cabinet on the upper edge of the cabinet 10 abut against each other through the limiting device 30, so that the rotation of the shaft body 100 in the shaft sleeve 200 is limited. At this moment, the axle sleeve 200 takes place elastic deformation under the gravity of door body itself, stop device, axis body and axle sleeve interact, open-sided elastic deformation satisfies: l is 0 +L G ＜d Shaft Wherein, L 0 The size of the opening of the side opening is 0.9cm, d Shaft The diameter of the cylinder where the shaft body is positioned is 1.2cm, L G The side opening is the elastic deformation size under the action of the self gravity G of the door body. At this time, the shaft body cannot be separated from the shaft sleeve.
Referring to fig. 9 and 10, in a case where the door body is fully opened, a distance from a distal end edge of the door body to a place 301 where the door body and the cabinet abut against each other is 40cm (i.e., a width of the door body, not shown in the drawings), and a distance from the place 301 where the door body and the cabinet abut against each other to the side opening (a distance a shown by a dotted line in fig. 9) is about 1/15 of the width of the door body. At this moment, if exert 30N's power F along the door body direction of opening at the distal end edge of the door body, then form between the stress point of side opening and door body atress F and use door body and box to support each other and lean on the lever that department 301 was the fulcrum, power F acts on axle sleeve side opening part through the lever to make the side opening take place the elastic deformation expansion, as shown in fig. 10(a), the elastic deformation of side opening can satisfy: l is a radical of an alcohol 0 +L G+F ≥d Shaft Wherein L is G+F When the door body is completely opened, the side opening is subjected to the elastic deformation dimension under the combined action of the gravity G and the external force F of the door body, namely L G+F Not less than 0.3 cm. At this moment, the door body can be separated from the range of elastic deformation of the shaft sleeve, and the effect of separating from the door body under stress is achieved, so that the door body falls off from the box body, and the shaft sleeve and the door body are avoided while the door body is convenient to disassembleThe area of the adjacent door shaft suffers from irreversible deformation or damage due to overlarge stress, due to the reversibility of elastic deformation, the releasing can be repeated, and after the door body is released, as shown in fig. 10(b), the elastic deformation of the side opening disappears, the opening size of the side opening is recovered to 0.9cm, and the shaft body can slide into the shaft sleeve through the side opening of the shaft sleeve along the direction of the minimum parallel tangent line and forms stable connection.
Example 2
Referring to fig. 11 and 12, the present embodiment discloses an on-vehicle refrigerator connected by an easily detachable door shaft system, which includes a refrigerator body 10, a door body 20, and a position limiting device 30, and the arrangement is the same as that in embodiment 1. A plurality of recesses 223 have been seted up to the side opening department of axle sleeve 200, set up the recess and both reduced the required stress of axle sleeve side opening department emergence unit elastic deformation, can increase the displacement of axle sleeve side opening part again in equal elastic deformation within range, increase promptly distance between two relative axle sleeve sliding contact faces of axle sleeve for the elastic deformation size increase of side opening part, thereby make the elastic deformation ability of axle sleeve increases.
When the door body is completely opened, the door body 20 abuts against a mutual abutting part 301 of the door body and the cabinet body on the upper edge of the cabinet body 10 through the limiting device 30, so that the rotation of the shaft body 100 in the shaft sleeve 200 is limited. At this moment, the axle sleeve 200 takes place elastic deformation under the gravity of door body itself, stop device, axis body and axle sleeve interact, open-sided elastic deformation satisfies: l is 0 +L G ＜d Shaft Wherein L is 0 The size of the opening of the side opening is 0.9cm, d Shaft Is the diameter of the cylinder body where the shaft body is positioned is 1.2cm, L G The side opening is the elastic deformation size under the action of the self gravity G of the door body. At this time, the shaft body cannot be separated from the shaft sleeve.
Referring to fig. 11, in the case where the door body is fully opened, the distance from the distal end edge 201 of the door body to the place 301 where the door body and the cabinet abut against each other is 40cm (i.e., the width of the door body), and the distance from the place 301 where the door body and the cabinet abut against each other to the side opening (refer to the distance a shown by the dotted line in fig. 9 of example 1) is about 1/15 of the width of the door body. At this time, if along the doorThe body is opened the direction and is applyed 10N's power F at the distal end edge 201 of the door body, then is in form between the stress point of side opening and door body atress F (being the distal end edge 201 of the door body) and support the lever that department 301 was the fulcrum with door body and box each other, power F passes through the lever action at axle sleeve side opening part to make the side opening take place elastic deformation expansion, side open elastic deformation can satisfy: l is 0 +L G+F ≥d Shaft Wherein L is G+F The size of the elastic deformation of the side opening under the combined action of the gravity G of the door body and the external force F when the door body is completely opened, namely L G+F Not less than 0.3 cm. Door physical stamina is deviate from at axle sleeve elastic deformation's within range this moment, reaches the effect that "the atress is deviate from" to make the door body drop from the box, in convenient dismantlement, avoid axle sleeve and the door shaft region that closes on to suffer irreversible deformation or destruction because of the atress is too big, because elastic deformation's reversibility, this kind of deviating from can go on repeatedly, and after the door body drops, open-sided elastic deformation disappears, and open-sided open size resumes to 0.9cm, and the axis body can be along again the tangent line direction of minimum parallel via the side opening slip-in axle sleeve of axle sleeve to form firm the connection.
The above description is intended to be exemplary of the present disclosure, and not to limit the scope of the present disclosure, which is defined by the claims appended hereto.
Claims (10)
1. An easily-disassembled door spindle system, which comprises a box body and a door body, wherein a spindle body is arranged on the box body, a spindle sleeve is arranged on the door body, a limiting device is arranged on the door body and/or the box body, and the easily-disassembled door spindle system is characterized in that,
the outer surface of the shaft body comprises a shaft body sliding contact surface and a shaft body rotating contact surface, wherein the shaft body rotating contact surface is superposed with the outer surface of a cylinder where the shaft body is located, the shaft body sliding contact surface comprises two opposite parts on the shaft body, the minimum distance (called as the minimum parallel tangent distance) between parallel tangents of the shaft body which are in contact with the shaft body sliding contact surface is smaller than the diameter of the cylinder where the shaft body is located,
the shaft sleeve is provided with an inner opening and a side opening, and the side opening is provided with two opposite shaft sleeve sliding contact surfaces which are matched with the shaft body sliding contact surfaces; the inner opening is provided with a shaft sleeve rotating contact surface which is used for being matched with the shaft body rotating contact surface, so that the shaft body can slide into or slide out of the shaft sleeve along the direction of the minimum parallel tangent line through the side opening of the shaft sleeve, the shaft sleeve rotating contact surface is matched with the shaft body rotating contact surface to realize the rotation of the shaft body in the shaft sleeve,
the shaft sleeve is made of an elastic deformation material,
the door body and the box body are connected through the shaft body and the shaft sleeve, the limiting device limits the rotation of the shaft body in the shaft sleeve under the condition that the door body is completely opened, and under the condition that the door body is completely opened:
the distance between two opposite shaft sleeve sliding contact surfaces of the shaft sleeve when the two opposite shaft sleeve sliding contact surfaces are elastically deformed under the interaction of the gravity of the door body, the limiting device, the shaft body and the shaft sleeve is smaller than the diameter (L) of the cylinder where the shaft body is located 0 +L G ＜d Shaft ) The distance between two opposite sliding contact surfaces of the shaft sleeve when the door body is elastically deformed under the interaction of the door body stress F, the limiting device, the shaft body and the shaft sleeve can be more than or equal to the diameter (L) of the cylinder where the shaft body is located 0 +L G+F ≥d Shaft )。
2. The door axle system as claimed in claim 1, wherein the material having elastic deformation is selected from the group consisting of polyethylene, polyvinyl chloride, polypropylene, polystyrene, ABS plastic, polycarbonate, nylon, polyurethane, polytetrafluoroethylene, and polyethylene terephthalate.
3. The easy-to-mount/dismount door spindle system according to claim 1, wherein said F acts on the distal end of said door body and has a size of 5-30N.
4. The door shaft system as claimed in claim 1, wherein a recess is formed at the side opening of the shaft sleeve to increase the size of the elastic deformation at the side opening.
5. The easy-to-detach door shaft system according to claim 1, wherein the limiting device is disposed on the door body and/or the cabinet body near the rotation axis of the door body, when the door body is fully opened, the door body and the cabinet body abut against each other through the limiting device, and on the rotation plane where the door body is opened, the distance from the abutting position of the door body and the cabinet body to the side opening is 1/20 to 1/5 of the width of the door body.
6. The easy attachable/detachable door spindle system according to claim 1, wherein said spindle body sliding contact surface comprises or consists essentially of one or more parallel planes, and the distance between said parallel planes is between 1/3 and 5/6, preferably between 2/5 and 2/3, of the diameter of the cylinder in which said spindle body is located.
7. The easy entry and exit door spindle system of claim 1, wherein the spindle body sliding interface comprises one or two elliptical surfaces, wherein the minimum parallel tangential distance is between 1/3 and 5/6 of the diameter of the cylinder in which the spindle body is located.
8. The door shaft system according to claim 1, wherein there are two sets of sliding contact surfaces, the included angle between the parallel tangents of the two sets of shaft bodies contacting with the two sets of sliding contact surfaces is 30 to 120 degrees, and the difference between the minimum distance between any one set of parallel tangents and the distance between the two opposite sliding contact surfaces of the shaft sleeve is less than 2 times, 3 times, 4 times, or 5 times of the machining error.
9. The easy-to-dismount door spindle system according to claim 1, wherein the outer side of the side opening of the bushing has a bushing sliding contact surface flare, and the width of the flare is larger than the distance between the two opposite bushing sliding contact surfaces.
10. An in-vehicle refrigerator employing the detachable door shaft system according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506638.7A CN114991607A (en) | 2022-05-11 | 2022-05-11 | Easy dismouting, atress are deviate from door-hinge system and adopt its on-vehicle refrigerator |
| PCT/CN2023/091940 WO2023216950A1 (en) | 2022-05-11 | 2023-05-03 | Door shaft system that is easy to assemble and disassemble and capable of being disengaged under stress, and vehicle-mounted refrigerator using door shaft system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506638.7A CN114991607A (en) | 2022-05-11 | 2022-05-11 | Easy dismouting, atress are deviate from door-hinge system and adopt its on-vehicle refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114991607A true CN114991607A (en) | 2022-09-02 |
Family
ID=83025833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210506638.7A Pending CN114991607A (en) | 2022-05-11 | 2022-05-11 | Easy dismouting, atress are deviate from door-hinge system and adopt its on-vehicle refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114991607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023216950A1 (en) * | 2022-05-11 | 2023-11-16 | 宁波婷微电子科技有限公司 | Door shaft system that is easy to assemble and disassemble and capable of being disengaged under stress, and vehicle-mounted refrigerator using door shaft system |
-
2022
- 2022-05-11 CN CN202210506638.7A patent/CN114991607A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023216950A1 (en) * | 2022-05-11 | 2023-11-16 | 宁波婷微电子科技有限公司 | Door shaft system that is easy to assemble and disassemble and capable of being disengaged under stress, and vehicle-mounted refrigerator using door shaft system |
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