CN217353994U - 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
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- CN217353994U CN217353994U CN202221113907.5U CN202221113907U CN217353994U CN 217353994 U CN217353994 U CN 217353994U CN 202221113907 U CN202221113907 U CN 202221113907U CN 217353994 U CN217353994 U CN 217353994U
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Abstract
The utility model provides an easy dismouting, atress deviate from a door-hinge system and adopt its on-vehicle refrigerator, it includes the box and the door body, be provided with the axis body on the box, be provided with the axle sleeve on the door body, be provided with stop device on the door body and/or the box, the axle sleeve adopts the material that has elastic deformation to make, the door body and box pass through axis body and axle sleeve connection, stop device restricts the rotation of axis body in the axle sleeve under the condition that the door body was opened completely to under the condition 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 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 utility model relates to an easy dismouting, atress deviate from door-hinge system and adopt its on-vehicle refrigerator.
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.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the defect among the above-mentioned prior art, proposed following technical scheme, including following embodiment:
embodiment 1. an easily assembled and disassembled door shaft system, which includes 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, and the door body and/or the box body is provided with a limiting device, and is characterized in that the outer surface of the shaft body includes a shaft body sliding contact surface and a shaft body rotating contact surface, wherein the shaft body rotating contact surface coincides with the outer surface of a cylinder where the shaft body is located, the shaft body sliding contact surface includes two opposite parts on the shaft body, and the minimum distance (called as the minimum parallel tangent line distance) between the parallel tangent lines of the shaft body contacting with the shaft body sliding contact surface is the minimum distance between the parallel tangent lines of the shaft bodyOff) is smaller than the diameter of a cylinder where the shaft body is located, the shaft sleeve is provided with an inner opening and a side opening, the opening size of the side opening is smaller than that of the inner opening, and the side opening is provided with two opposite shaft sleeve sliding contact surfaces which are used for being matched with the shaft body sliding contact surfaces; 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 a side opening of the shaft sleeve, the shaft sleeve rotating contact surface and the shaft body rotating contact surface are matched with each other, the rotation of the shaft body in the shaft sleeve is realized, 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 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 )。
Embodiment 2. the easy-to-mount/dismount door spindle system according to embodiment 1, wherein the material having elastic deformation is selected from polyethylene, polyvinyl chloride, polypropylene, polystyrene, ABS plastic, polycarbonate, nylon, polyurethane, polytetrafluoroethylene, polyethylene terephthalate.
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-disassemble door shaft system according to embodiment 1, wherein the shaft body sliding contact surface comprises or consists essentially of one or more parallel planes, and the distance between the parallel planes is between 1/3 and 5/6, preferably between 2/5 and 2/3 of the diameter of the cylinder in which the shaft 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 door shaft system according to embodiment 1, wherein the outer side of the side opening of the shaft sleeve has a shaft sleeve sliding contact surface flaring, and the width of the flaring is larger than the distance between the two opposite shaft sleeve 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 utility model include: the axis body of door-hinge system rotates certain angle alright form firm connection after sliding into the axle sleeve, and the axis body roll-off alright quickly separating in the axle sleeve after rotatory opposite angle, the installation and the dismantlement of being convenient for very much. 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 connecting area between a door body and a refrigerator body of the vehicle-mounted 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 door fully opened in the lower door spindle region;
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 assembled and disassembled 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 are/is provided with a limiting device, the easily assembled and disassembled door shaft 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 positioned, 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, of the shaft body is smaller than the diameter of the cylinder where the shaft body is positioned, the shaft sleeve is provided with an inner opening and an side opening, the size of the side opening is smaller than the size of the inner opening, and the side opening is provided with two opposite shaft sleeve sliding contact surfaces, the sliding contact surface is matched with the shaft body; the inner opening is provided with a shaftThe shaft body is made of materials 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 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 )。
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 arc line of the last axle sleeve rotation contact face of 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 is elastically deformed.
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 is completely opened, when the door body is stressed by F, the elastic deformation of the side opening can meet the following requirements: l is 0 +L G+F ≥d Shaft At this time, the shaft body is separated from the shaft sleeve, the 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 recovered 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 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 elastic deformation and expanded, because of the distance that elastic deformation increases between two relative axle sleeve sliding contact faces on the side opening.
The door body can deviate from in the scope of axle sleeve elastic deformation when receiving external force promptly, reaches the effect that "the atress is deviate from", avoids axle sleeve and the door spindle 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 be gone on repeatedly, and after the door body drops, the axis body can be along again minimum parallel tangent line's direction via the side opening slip-in axle sleeve of axle sleeve to form firm the connection.
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.
"deviate from" or "the atress is deviate from" this application indicates that the axis body is in axle sleeve elastic deformation within range, and the process that the axle sleeve side opening through the expansion breaks away from the axle sleeve, "slides in" or "gets into", "roll-off" indicates that axis body and axle sleeve realize the process of connecting, separating along axle sleeve sliding contact face.
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 needs can be met, and those skilled in the art can make appropriate choices 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 separated from the side opening in the elastic deformation range of the shaft sleeve, but also needs to consider the difficulty of the elastic deformation of the material, namely, the stress required by the unit elastic deformation of the material is generated under the action of external force, and the difficulty of the elastic deformation of the material can be measured by adopting the 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 rotatory plane of the door body, the distal end of the door body has the bigger arm of force for the near-end of the door body, acts on the power F of the distal end of the door body can make the side opening of the shaft sleeve take place elastic deformation and make the door body deviate from under stop device, axis body and shaft sleeve interact.
In some embodiments, the side opening of the sleeve is notched, so that the elastic deformation at the side opening is increased in size. 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 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 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 of the two groups of parallel tangents of the shaft body 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 body is smaller than the diameter of the cylinder where the shaft body is located, so that the shaft body can slide into 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 tangents, 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 in closer fit 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. Thereby, the shaft body can slide into the side opening through the flaring guide, 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 out of the shaft sleeve through the shaft body, and the vehicle-mounted refrigerator can take articles 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 near the shaft sleeves 200 on the door body 20, 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 of 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 tangent lines of the shaft body contacting the two shaft body sliding contact surfaces 110 is 0.9cm (referred to as a minimum parallel tangent line distance, fig. 5 shows the parallel tangent lines of the shaft body), and the minimum parallel tangent line distance is smaller than the diameter of the cylinder where the shaft body is located.
The shaft sleeve 200 is provided with an inner opening 210 and a side opening 220, the side opening 220 is provided with two opposite shaft sleeve sliding contact surfaces 221 for matching with the shaft body sliding contact 110, the inner opening 210 is provided with 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 slide 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 to realize 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 flaring 222, the width of the flaring 222 is larger than the distance between the two opposite shaft sleeve sliding contact surfaces 221, and the maximum width of the flaring 222 is 1.5cm, so that the shaft body 100 can enter the side opening 220 through the flaring 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 as to limit the rotation of the shaft body 100 in the shaft sleeve 200. 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 The diameter of the cylinder where the shaft body is positioned is 1.2cm, L G The side opening is in the size of elastic deformation under the action of the 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 time, if a force F of 30N is applied to the far-end edge of the door body along the opening direction of the door body, a lever taking the mutual abutting part 301 of the door body and the box body as a fulcrum is formed between the side opening and the stress point of the door body stress F, and the force F passes through the leverActing on the side opening of the shaft sleeve and elastically deforming and expanding the side opening, as shown in fig. 10(a), the elastic deformation of the side opening can satisfy: l is 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 shaft sleeve elastic deformation, the effect that 'the atress is separated from' is reached, thereby make the door body drop from the box, when convenient the dismantlement, avoid the shaft 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 being separated can go on repeatedly, and after the door body drops, as shown in fig. 10(b), open-sided elastic deformation disappears, and open-sided opening size resumes to 0.9cm, and the axis body can be followed again the tangent line's of minimum parallel direction via the side opening of shaft sleeve slips into the shaft sleeve, and form firm 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 a radical of an alcohol 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 moment, if apply 10N's power F at the distal end edge 201 of the door body along the door body opening direction, then form between the stress point of side opening and door body atress F (being the distal end edge 201 of the door body) and use the 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 elastic deformation expansion, side opening 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 (11)
1. An easily-disassembled and forced-release door shaft system 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, and a limiting device is arranged on the door body and/or the box body,
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, the opening size of the side opening is smaller than that of the inner opening, and the side opening is provided with two opposite shaft sleeve sliding contact surfaces which are used for being 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 easy-to-disassemble and assemble forced release door shaft system according to claim 1, wherein the material with elastic deformation is selected from polyethylene, polyvinyl chloride, polypropylene, polystyrene, ABS plastic, polycarbonate, nylon, polyurethane, polytetrafluoroethylene, polyethylene terephthalate.
3. The easy-to-assemble-disassemble forced-release door spindle system according to claim 1, wherein the F acts on the far end of the door body and has a size of 5-30 newtons.
4. The easy-to-dismount and force-to-release door shaft system according to claim 1, wherein a groove is formed at the side opening of the shaft sleeve, so that the elastic deformation size at the side opening is increased.
5. The easy-to-mount-dismount door shaft system with the force-releasing function as claimed in claim 1, wherein the limiting device is disposed on the door body and/or the box body close to the rotation shaft of the door body, when the door body is fully opened, the door body and the box 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 box body to the side opening is 1/20 to 1/5 of the width of the door body.
6. The readily removable, forced release door spindle system according to claim 1, wherein said spindle sliding interface comprises, or consists essentially of, one or more parallel planes separated by a distance between 1/3 and 5/6 of the diameter of the cylinder in which said spindle is located.
7. The readily removable, forced release door spindle system according to claim 1, wherein said spindle sliding interface comprises one or two elliptical surfaces with a minimum parallel tangent distance between 1/3 and 5/6 of the diameter of the cylinder in which said spindle is located.
8. The readily removable, forced release door spindle system according to claim 1, wherein there are two sets of said spindle body sliding contact surfaces, the angle between the parallel tangent lines of the two sets of said spindle bodies in contact with the two sets of said spindle body sliding contact surfaces is between 30 and 120 degrees, and the difference between the minimum distance between any set of parallel tangent lines and the distance between the two opposing spindle sleeve sliding contact surfaces is less than 2, 3, 4, or 5 times the machining error.
9. The easy-to-disassemble and assemble forced release door shaft system according to claim 1, wherein the outside of the side opening of the shaft sleeve is provided with a shaft sleeve sliding contact surface flaring, and the width of the flaring is larger than the distance between the two opposite shaft sleeve sliding contact surfaces.
10. The readily disassembled, forced disengagement door spindle system according to claim 6, wherein the distance between the parallel planes is between 2/5 and 2/3 of the diameter of the cylinder in which the spindle body is located.
11. An on-vehicle refrigerator employing the easily detachable forced release door spindle system according to any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221113907.5U CN217353994U (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 |
|---|---|---|---|
| CN202221113907.5U CN217353994U (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 |
|---|---|
| CN217353994U true CN217353994U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221113907.5U Active CN217353994U (en) | 2022-05-11 | 2022-05-11 | Easy dismouting, atress are deviate from door-hinge system and adopt its on-vehicle refrigerator |
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| Country | Link |
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| CN (1) | CN217353994U (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 CN202221113907.5U patent/CN217353994U/en active Active
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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