An elastic self-locking mechanism and a push-button cigarette case

Abstract

The present invention discloses an elastic self-locking mechanism and a push-button cigarette case, which comprise a cigarette bin, an outer shell and a flip cover. At least one elastic self-locking mechanism is provided between the cigarette bin and the outer shell. The elastic self-locking mechanism includes a cylinder, a guide post and an elastic member. A plurality of equally spaced sliders are circumferentially arranged on the inner wall of the cylinder. The surface of the guide post is provided with an upper guide block and a lower guide block. A guide groove is provided between adjacent upper guide blocks. The bottom of the upper guide block is provided with a mating surface adapted to the slider, and a first inclined surface is provided between the mating surface and the guide groove. A second inclined surface is provided between the upper end of the lower guide block and the adjacent upper guide block. The second inclined surface includes at least two broken lines with different depths. By providing the elastic self-locking mechanism, after pressing the top of the flip cover, the self-locking mechanism can be in a spring-open state, so that the cigarette bin is ejected and maintained at a set position, facilitating the extraction of cigarettes. Then, by continuing to press, the cigarette bin can be pressed back into the outer shell and the self-locking mechanism is in a locked state.

Description

Technical Field

[0001] The present invention belongs to the field of cigarette cases, and particularly relates to an elastic self-locking mechanism and a push-button cigarette case. Background Art

[0002] In the prior art, there are many types of cigarette cases for packaging cigarettes, such as upward-opening type, side-opening type, etc. However, most of the opening methods of cigarette cases require two hands to operate. And some cigarette cases may adopt a hinge-type flip cover, which is opened by pressing a switch and using the elasticity between the flip cover and the case body. Most of this method requires adding a button, and the button exposed outside will cause misoperation. Moreover, most of the cigarette cases of this type can only be automatically opened, and still require two hands to operate when closing, and the structure is relatively complex and the cost is high. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an elastic self-locking mechanism and a push-button cigarette case.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An elastic self-locking mechanism, the elastic self-locking mechanism includes a cylinder, a guiding column rotatably arranged in the cylinder, and an elastic member arranged between the two. A plurality of equally spaced sliders are circumferentially arranged on the inner wall of the cylinder. The surface of the guiding column is provided with an upper guiding block and a lower guiding block. A guiding groove adapted to the slider is arranged between adjacent upper guiding blocks. The bottom of the upper guiding block is provided with a mating surface adapted to the slider. And a first inclined surface is arranged between the mating surface and the guiding groove. A second inclined surface is arranged between the upper end of the lower guiding block and the adjacent upper guiding block. The second inclined surface includes at least two broken lines with different depths. The end point of the first broken line and the starting point of the mating surface are on the same vertical line. The end point of the second broken line and the end point of the mating surface are on the same vertical line.

[0006] The direction of the first inclined surface is arranged opposite to the direction of the second inclined surface.

[0007] A gap adapted to the slider is arranged between adjacent lower guiding blocks.

[0008] The second inclined surface is composed of a plane, a first broken line, a vertical surface, and a second broken line.

[0009] The distance from the end point of the first broken line to the starting point of the second broken line is adapted to the length of the slider.

[0010] A push-button cigarette case adopting the elastic self-locking mechanism described in any one of the above, characterized in that: it includes a cigarette bin and a shell that form a sliding fit, and flip covers rotatably arranged on both sides of the cigarette bin. At least one elastic self-locking mechanism is arranged between the cigarette bin and the shell.

[0011] Positioning structures are provided on both sides of the tobacco bin, and the cylinder of the elastic self-locking mechanism is sleeved on the outer peripheral wall of the positioning structure and forms an interference fit with the positioning structure.

[0012] Limit blocks are provided on the outer peripheral wall of the positioning structure, and limit grooves are correspondingly provided inside the cylinder.

[0013] Elastic sheets are provided on the outer sides of both sides of the tobacco bin, and a pressing rod is formed by extending the hinge joint of the flip cover that is rotationally engaged with the tobacco bin. When the flip cover is closed, the pressing rod presses against the elastic sheet and causes the elastic sheet to undergo elastic deformation.

[0014] A buckle for limiting the ejection distance of the tobacco bin is further provided between the tobacco bin and the outer shell.

[0015] Advantages of the present invention: By providing the elastic self-locking mechanism, after pressing the top of the flip cover, the self-locking mechanism can be in the spring-opening state, so that the tobacco bin is ejected and held at a set position, facilitating the extraction of cigarettes. Then, by continuing to press, the tobacco bin can be pressed back into the outer shell and the self-locking mechanism is in the locked state, thus realizing the operations of pressing to open and close the cigarette case. The structure is reasonable and compact, easy to use, and has an aesthetically pleasing appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural view of the present invention after being closed.

[0017] Figure 2 It is a schematic structural view of the present invention after being opened.

[0018] Figure 3 It is a schematic sectional view of the present invention.

[0019] Figure 4 It is a schematic structural view of the present invention after being closed (omitting the outer shell).

[0020] Figure 5 It is a schematic structural view of the present invention after being opened (omitting the outer shell).

[0021] Figure 6 It is a schematic structural view of two states of the elastic self-locking mechanism.

[0022] Figure 7 It is a schematic structural view of the cylinder.

[0023] Figure 8 It is a schematic structural view of the guide post.

[0024] Figure 9 It is a schematic structural view of the tobacco bin. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] As shown in the figure, a push-type cigarette case includes a cigarette bin 3 and a housing 1 that form a sliding fit, and flip covers 2 rotatably arranged on both sides of the cigarette bin. A bottom cover 4 is provided at the bottom of the housing. The front of the cigarette bin is set as an open structure, which is inserted into the housing. One side of its opening cooperates with the housing to form a complete cigarette storage bin. And this open structure is more convenient for taking cigarettes when it pops out. At the same time, this open structure can also be a partial opening, that is, an opening is provided near the upper end to expose a distance convenient for taking cigarettes, and it can be designed according to needs. The cigarette bin can be slidably arranged relative to the housing, and its two side edges are set in an arc shape to reduce friction. At the same time, the side edges of the housing can also be set in an arc shape to further improve the aesthetics of the cigarette case.

[0027] At least one elastic self-locking mechanism is provided between the cigarette bin and the housing. Preferably, at least one elastic self-locking mechanism 5 is provided between the outer sides of the two side edges of the cigarette bin 3 and the inner sides of the two side edges of the housing 1. The elastic self-locking mechanism 5 has two states, one is the locked state, and the other is the popped state. The switching between the two states is achieved by pressing, that is, pressing the cigarette bin can make the elastic self-locking mechanism switch from locked to popped or from popped to locked, so as to realize the switching of the popping and pressing locking of the cigarette bin, which is convenient for single-handed operation.

[0028] And the elastic self-locking mechanism includes a cylinder 52 provided on any one of the two side edges of the cigarette bin, a guide post 51 rotatably arranged in the cylinder, and an elastic member 53 arranged between the two. The elastic member is a spring. The guide post 51 is provided with a groove for placing the spring centered on the central axis. The spring is placed in this groove, and its upper end can abut against the upper end of the cylinder or the cigarette bin, so as to be compressed when the two are pressed and reset when the pressure applied to the two is released.

[0029] A number of equally spaced sliders 521 are circumferentially provided on the inner wall of the cylinder. The number of the sliders is preferably 3, which are equally divided on the inner wall of the cylinder. At the same time, it can be a quadrilateral slider or a circular bump, and its shape can be changed according to design requirements. The cylinder 52 can be integrally formed with the cigarette bin, that is, non-through holes are directly provided on the two side edges of the cigarette bin, and a number of equally spaced sliders 521 are provided on the inner wall of the non-through holes, and the state switching is realized by using the sliders and the guide post.

[0030] The cylinder can also be designed as a separate part, that is, placing grooves 34 for placing round holes are provided on both sides of the tobacco bin. A positioning structure 32 is provided at the upper end of the placing groove. The cylinder is sleeved on the outer peripheral wall of the positioning structure and forms an interference fit with the positioning structure. The interference fit between the cylinder and the positioning structure is used to realize the fixed connection between the cylinder and the tobacco bin, ensuring the consistency of their movements. Further, the positioning structure is a ring, with an inner depression forming a fixing part for the elastic member, and a limiting block 321 is provided on its outer edge. Correspondingly, a limiting groove 522 is provided inside the cylinder. The limiting block 321 can be inserted into the limiting groove 522 to fix the installation position of the cylinder during installation. Generally, the other end of the placing groove 522 can be set to be in a through state to facilitate the guide post to insert into the cylinder. Additionally, round holes adapted to the guide post can also be provided, that is, in a non-through state. The length of the placing groove is adapted to the cylinder to realize the fixation of the cylinder. By adopting this method, the design of the positioning structure can be omitted, and the cylinder can be directly fixed by the interference fit between the placing groove and the cylinder. In this way, the limiting block or the limiting groove can be provided in the placing groove, and the corresponding limiting groove or limiting block is provided on the surface of the cylinder.

[0031] Upper guide blocks 511 and lower guide blocks 512 are provided on the surface of the guide post. The number of upper guide blocks is equal to that of the lower guide blocks and corresponds to the number of the sliders. Preferably, there are 3, and they are evenly distributed on the circumference of the guide post in three equal parts. A guide groove 513 adapted to the slider is provided between adjacent upper guide blocks 511. That is, when the slider is located in this guide groove, it will slide along the guide groove under the action of the elastic member, thereby completing the ejection of the tobacco bin. A mating surface 5111 adapted to the slider is provided at the bottom of the upper guide block. When the slider is located at this mating surface, its axial movement will be restricted, thereby realizing the locking of the tobacco bin. And a first inclined surface 5112 is provided between the mating surface and the guide groove.

[0032] In addition, grooves can be provided on the mating surface 5111 to better restrict the movement of the slider, and it can only leave this mating surface when it slides down.

[0033] The section between the mating surface and the guide groove is set as the first inclined surface 5112. When the slider enters the first inclined surface from the mating surface, it will slide along this first inclined surface and then enter the guide groove. Thus, the cooperation between the slider and the mating surface will be released, and then the tobacco bin ejects.

[0034] A second inclined surface is provided between the upper end of the lower guide block and the adjacent upper guide block. The second inclined surface includes at least two broken lines with different depths. A gap 515 is provided between adjacent lower guide blocks. When sliding along the second broken line, the slider will eventually slide to this gap. When the force is released, it will move vertically upward at the gap. Above the gap corresponds to the first inclined surface. Then, under the action of the elastic member, the slider contacts the first inclined surface and moves circumferentially along the first inclined surface 5112 and then enters the guide groove. Preferably, the width of the gap is adapted to the width of the slider, facilitating entry into the gap when stressed.

[0035] The second inclined surface is composed of a plane, a first broken line, a vertical surface, and a second broken line. The travel distance of the first broken line is the same as the width of the guide groove. When moving along the first broken line, the slider is just moved from below the position where the guide block is located to below the position where the mating surface is located. The travel distance of the second broken line is the same as the width of the mating surface. When moving along the second broken line, the slider is just moved from the position where the mating surface is located to the position where the first inclined surface is located.

[0036] The vertical surface connects the first broken line and the second broken line. Its distance is preferably the same as the length of the slider, that is, it plays a certain buffering role at the end of the first broken line, can better display the pressing gear feeling, and will not be pressed excessively.

[0037] The direction of the first inclined surface is arranged opposite to the direction of the second inclined surface. That is, the first inclined surface is arranged upward, and the second inclined surface is arranged downward. It is arranged according to the direction of the force on the slider and is used to guide the movement of the slider.

[0038] The end point of the first broken line 5122 and the starting point of the mating surface are on the same vertical line. The end point of the second broken line 5124 and the end point of the mating surface are on the same vertical line. When pressing, the cylinder cooperates with the guide post. Using the upper guide block and the lower guide block on the surface of the guide post in combination with the cooperation of the slider in the cylinder, during use, since the cylinder and the tobacco bin are synchronized and non-rotatable, its up and down movement is converted into the circumferential rotation of the guide post through the trajectory formed by the upper guide block and the lower guide block, thereby realizing the state switching between locking and popping out.

[0039] In the popped-out state, the slider is initially at the position E as shown in Figure 6 That is, the slider is restricted at the position E by the mating surface. When the tobacco bin is subjected to pressure, the slider moves downward to the position C. At this time, the slider contacts the second broken line and slides down along the second broken line to the position D. At this time, the force is released. The slider moves vertically upward under the driving of the restoring force of the elastic member and reaches the position F. At this time, it contacts the first inclined surface and moves along the first inclined surface to the position G, thereby entering the guide groove. At this time, the restricted cooperation between the slider and the guide post is released, and the tobacco bin pops out.

[0040] In the locked state, the slider is initially located at G. When the tobacco cartridge is stressed, the slider moves downward along the guiding groove until it reaches A. At this time, the slider contacts the first broken line segment and moves along the first broken line segment to B under the drive of the force. Then, when the stress is removed, it rises under the action of the elastic member and reaches E, where it is restricted from rising by the mating surface, completing the locking. At this time, the tobacco cartridge is in a state of being retracted into the housing.

[0041] Elastic pieces 31 are provided on the outer sides of both sides of the tobacco cartridge. At the hinge joint of the flip cover that forms a rotational fit with the tobacco cartridge, a pressing rod 21 extends. When the flip cover is closed, the pressing rod presses against the elastic piece, causing the elastic piece to undergo elastic deformation.

[0042] Both sides of the tobacco cartridge are divided into upper and lower two spaces by partition plates. The lower side is used to place a cylinder, and an elastic piece extends upward from the upper side. It is only connected to the partition plate at the bottom and has a certain elasticity, which can be determined by the material of the material itself. On one side of the top end of the elastic piece, a hinge shaft for hinging with the flip cover is provided. The flip cover can rotate with this hinge shaft as the rotation center. The position where the flip cover cooperates with the hinge shaft extends to one side to form a pressing rod. When the flip cover is closed, the pressing rod can apply a force to deform the elastic piece. At this time, since the tobacco cartridge has been retracted into the housing, the pressure of the upper edge of the housing on the flip cover is used to ensure that the flip cover is in a closed state when the tobacco cartridge is retracted. When the tobacco cartridge pops out, since the extrusion of the upper edge of the housing on the flip cover is released, the self-restoring force of the elastic piece itself gives a force in the opposite direction to the pressing rod, thereby driving the flip cover to open synchronously when the tobacco cartridge pops out.

[0043] Chute grooves 33 are provided on the rear sides of both sides of the tobacco cartridge where the elastic self-locking mechanism is located. A baffle 331 is provided at the end of the chute groove. A buckle 41 that can be inserted into the chute groove is provided at the bottom of the housing. The buckle can slide in the chute groove, that is, it does not affect the pop-out of the tobacco cartridge. At the same time, the baffle 331 at its end forms a limit fit with the buckle, playing a role in limiting the pop-out distance of the tobacco cartridge. In addition, the buckle can be directly provided in the housing, or it can be fixed on the bottom cover 4 by providing a bottom cover. In addition, after assembling the tobacco cartridge, the bottom cover and the elastic self-locking mechanism, the whole is inserted into the housing, and then through the fixation of the flip cover at the other end, the assembly of the whole cigarette case can be realized. Its assembly is convenient, and relying on the two-way limitation of the bottom cover and the flip cover, the fixation of the tobacco cartridge in the housing is completed, and its fixation reliability is strong and the assembly efficiency is high.

[0044] The embodiments should not be regarded as limiting the present invention, but any improvement based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A press-type cigarette case, characterized in that: It includes a tobacco bin and a housing that form a sliding fit, and flip covers rotatably arranged on both sides of the tobacco bin. At least one elastic self-locking mechanism is provided between the tobacco bin and the housing. The elastic self-locking mechanism includes a cylinder, a guiding column rotatably arranged in the cylinder, and an elastic member arranged between the two. A number of equally spaced sliders are circumferentially arranged on the inner wall of the cylinder. The surface of the guiding column is provided with an upper guiding block and a lower guiding block. A guiding groove adapted to the slider is provided between adjacent upper guiding blocks. A mating surface adapted to the slider is provided at the bottom of the upper guiding block. And a first inclined surface is provided between the mating surface and the guiding groove. A second inclined surface is provided between the upper end of the lower guiding block and the adjacent upper guiding block. The second inclined surface includes at least two broken lines with different depths. The end point of the first broken line and the starting point of the mating surface are on the same vertical line. The end point of the second broken line and the end point of the mating surface are on the same vertical line. Positioning structures are provided on both sides of the tobacco bin. The cylinder of the elastic self-locking mechanism is sleeved on the outer peripheral wall of the positioning structure and forms an interference fit with the positioning structure. Elastic sheets are provided on the outer sides of both sides of the tobacco bin. A pressing rod is extended from the hinge joint of the flip cover that is rotatably mated with the tobacco bin. The pressing rod presses against the elastic sheet when the flip cover is closed, and causes the elastic sheet to undergo elastic deformation. The direction of the first inclined surface and the direction of the second inclined surface are arranged towards each other.

2. The push-type cigarette case according to claim 1, characterized in that: A limiting block is provided on the outer peripheral wall of the positioning structure, and a limiting groove is correspondingly provided in the cylinder.

3. The push-type cigarette case according to claim 1, wherein: A buckle for limiting the ejection distance of the tobacco bin is further provided between the tobacco bin and the housing.

4. The push-type cigarette case according to claim 1, characterized in that: A gap adapted to the slider is provided between adjacent lower guiding blocks.

5. The push-type cigarette case according to claim 1, wherein: The second inclined surface is composed of a plane, a first broken line, a vertical surface, and a second broken line.

6. The push-button cigarette case according to claim 1 or 5, characterized in that: The distance from the end point of the first broken line to the starting point of the second broken line is adapted to the length of the slider.

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