CN216180705U - Portable telescopic device - Google Patents

Abstract

The utility model discloses a portable telescopic device which comprises an upper shell, a lower shell and a rotary cover, wherein the lower shell is sleeved in the upper shell, the rotary cover is arranged at the top of the upper shell, and a magnet is arranged on the rotary cover and faces the inner part of the upper shell. Go up the casing bottom and install annular magnet, the casing top is equipped with the iron connecting piece down, and inside the iron connecting piece was located the casing, annular magnet can prevent the inside roll-off of iron connecting piece follow last casing, magnet and annular magnet homoenergetic and iron connecting piece actuation. The portable telescopic pen includes one pen core inside the lower casing, one iron connecting part contacting the top of the pen core and with lower part clamped by the inner wall of the lower casing, and one telescopic device. The portable telescopic cutter comprises a blade and the device, wherein the blade is arranged in the lower shell, the top of the blade is contacted with the bottom of the iron connecting piece, and the lower part of the blade is clamped by the inner wall of the lower shell. The telescopic pen or the telescopic cutter can be stretched by rotating the rotary cover, and the telescopic pen or the telescopic cutter is convenient to carry and process.

Description

Portable telescopic device

Technical Field

The utility model belongs to the technical field of daily necessities, and relates to a portable telescopic device.

Background

With the development of science and technology and the diversification of daily activities of people, people have higher and higher requirements on the functions, the use convenience and the like of daily necessities (such as pens or cutters). Thus, a wide variety of such products are available on the market. For convenience of carrying, the retractable pen and the retractable knife receive more and more extensive attention. However, in most of the conventional retractable pens, a complicated elastic mechanical structure having a spring device is adopted, which not only increases the difficulty of processing, but also prevents the spring from being used continuously once the spring is damaged.

In addition, as patent of application No. 200420004217.1 entitled "a box type retractable pen", the retractable pen rod with multiple sections is adopted to extend and retract the whole pen, and although the retractable pen does not adopt a complex mechanical structure, the pen rod with multiple sections has poor hand holding feeling when in use. And the refill is protected by adopting a separate pen cap, and the use of the pen can be influenced if the pen cap is lost.

For the existing telescopic cutter, the cutter head is generally rotated manually to be screwed into the cutter body, so that the cutter is telescopic. The telescopic cutter is easy to scratch fingers in the rotating process and has low practicability.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, an object of the present invention is to provide a portable retractable device, which is applied to a portable retractable pen, a portable retractable knife, or the like, and can be easily and quickly retracted according to the needs of people, and is convenient to carry when going out. When in use, the utility model can make people have good hand-holding feeling, is convenient for processing and has long service life.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a portable telescoping device, includes casing, lower casing and rotatory lid, and lower casing suit is in the inside of casing, and can stretch out and draw back along the inner wall of last casing. The rotary cover is arranged on the top of the upper shell and can rotate on the top plane of the upper shell. The rotary cover is provided with a magnet, the magnet faces the inner part of the upper shell, and the rotary cover and the magnet on the rotary cover are used for achieving the stretching of the lower shell. Annular magnet is installed to the bottom of going up the casing, and the top of casing is equipped with the iron connecting piece down, and the iron connecting piece is located the inside of casing, and annular magnet can stop the inside roll-off of iron connecting piece from last casing, and then prevents casing and last casing separation down. The magnet and the annular magnet can be attracted with the iron connecting piece, when the lower shell slides to the top of the upper shell, the magnet is attracted with the iron connecting piece, and the device is contracted; when the lower shell slides to the bottom of the upper shell, the annular magnet is attracted with the iron connecting piece, and the device extends.

Preferably, the rotating cover comprises fixed part and rotating part, and the fixed part is the lantern ring structure, through the top of threaded fixation in the upper housing, and the rotating part is installed in the top of fixed part through the pin, and the pin is located the edge of rotating part and fixed part. The rotating part can rotate around the pin and the fixing part relatively, so that the magnet and the iron connecting piece are attracted or separated.

Preferably, a small magnet is arranged at the bottom edge of the rotating part, and the small magnet and the pin are symmetrically arranged along the center of the rotating part; the top edge of fixed part is equipped with little iron plate, and little magnet can be with the mutual actuation of little iron plate. Rotating part one end is fixed, and the other end is rotatory, and little magnet and little iron plate are used for resetting the rotating part.

Preferably, the magnet is a round magnet, which is adhered to the bottom center of the fixing part, so that the magnet can be attracted with the iron connecting piece conveniently.

Preferably, the bottom inner wall of going up the casing is equipped with first screw thread, and annular magnet's bottom inner wall is equipped with the second screw thread, and first screw thread can stabilize the iron connecting piece, and the second screw thread can stabilize the casing down to improve the hand when people use and hold the sense.

Preferably, the outer diameter of the upper portion of the iron connector is adapted to the inner diameter of the upper housing so that the iron connector can slide inside the upper housing. The external diameter of the upper portion of iron connecting piece is greater than the external diameter of casing down for the bottom of iron connecting piece can be blocked by annular magnet, thereby prevents the inside roll-off of iron connecting piece follow last casing, and then prevents casing and last casing separation down. The lower part of the iron connecting piece is screwed into the lower shell body through threads, so that the iron connecting piece is convenient to assemble and disassemble.

Preferably, the cross section of the ring magnet is L-shaped, and the inner diameter of the bottom of the ring magnet is smaller than the outer diameter of the upper part of the iron connecting piece, so that the ring magnet can clamp the iron connecting piece. The bottom inside diameter of the ring magnet is larger than the outside diameter of the lower shell, so that the lower shell can slide through the ring magnet. The annular magnet is installed on the outer wall of the bottom of the upper shell through threads, and installation and disassembly are facilitated.

Preferably, the outer wall of the upper shell is further sleeved with an insert, the insert is of a hollow cylinder structure, is arranged between the bottom of the rotary cover and the top of the annular magnet, and adopts rosewood, jade jewelry or precious metal and the like.

The utility model also provides a portable telescopic pen, which comprises a pen core and the portable telescopic device, wherein the pen core is arranged in the lower shell, the top of the pen core is contacted with the bottom of the iron connecting piece, and the lower part of the pen core is clamped by the inner wall of the lower shell to prevent the pen core from sliding out of the lower shell.

The utility model also provides a portable telescopic cutter, which comprises a blade and the portable telescopic device, wherein the blade is arranged in the lower shell, the top of the cutter is contacted with the bottom of the iron connecting piece, and the lower part of the cutter is clamped by the inner wall of the lower shell to prevent the cutter from sliding out of the lower shell.

The portable telescopic device provided by the utility model has the advantages of simple structure, convenience in use, wide application range and convenience in carrying. The magnet and the iron connecting piece are attracted and separated by rotating the rotary cover, so that the whole device can stretch. The portable telescopic pen and the portable telescopic cutter provided by the utility model can realize the telescopic of the whole telescopic pen or the telescopic cutter through the telescopic of the telescopic device, and are used as daily tools. In addition, the portable telescopic pen can protect the pen core, and the portable telescopic cutter can prevent fingers from being scratched. The novel product can also be applied to the market as a high-grade gift, and has strong practicability.

Drawings

FIG. 1 is a perspective view of a portable retractable device of the present invention;

FIG. 2 is a full sectional view of the portable retractable device of the present invention;

FIG. 3 is a full sectional view of the portable retractable pen of the present invention;

FIG. 4 is a full sectional view of the portable telescoping knife of the present invention;

fig. 5 is another embodiment of the portable telescopic cutter according to the present invention.

Description of the main element symbols:

1 upper shell

11 first screw thread

12 mosaic

2 lower casing

3 rotating cover

31 fixed part

32 rotating part

33 Pin

34 small magnet

35 small iron block

36 magnet

4 ring magnet

41 second screw thread

5 iron connecting piece

6-type pen core

7 blade

Detailed Description

The technical solution in the embodiment of the portable retractable device provided by the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the utility model.

As shown in fig. 1 and 2, the present invention provides a portable retractable device, which includes an upper housing 1, a lower housing 2, and a rotary cover 3, wherein the lower housing 2 is sleeved inside the upper housing 1 and can be retracted along the inner wall of the upper housing 1.

Go up casing 1 for hollow cylinder structure, be equipped with the screw thread on its top outer wall, rotatory lid 3 passes through the screw thread to be installed in the top of last casing 1. Specifically, the rotary cover 3 is composed of a fixed portion 31 and a rotary portion 32, the fixed portion 31 is a collar structure, and an inner wall thereof is provided with threads to be engaged with the threads on the top of the upper casing 1, thereby fixing the fixed portion 31 to the upper casing 1. The rotating portion 32 is of a short cylindrical structure and is attached to the top of the fixed portion 31 by a pin 33. The pin 33 is located at the edge of the rotating portion 32 and the fixed portion 31, and the axis of the pin 33 is parallel to the axis of the upper housing 1, so that the rotating portion 32 can be rotated. The bottom edge of the rotating portion 32 is provided with a small magnet 34, and the small magnet 34 and the pin 33 are symmetrically arranged along the center of the rotating portion 32. A small iron block 35 is disposed at the top edge of the fixing portion 31, and the small magnet 34 can attract the small iron block 35 for resetting the rotating portion 32.

The fixed portion 31 and the rotating portion 32 are provided with vertically corresponding mounting holes, and the pins 33 are placed in the mounting holes, thereby rotatably mounting both the rotating portion 32 and the fixed portion 31 together. The small magnet 34 is embedded in a small mounting hole formed in the bottom edge of the rotating portion 32, the small iron block 35 is embedded in a small mounting hole formed in the top edge of the fixing portion 31, and when the small magnet 34 and the small iron block 35 are attracted to each other, the rotating portion 32 is reset.

The rotary cover 3 is provided with a magnet 36, and the magnet 36 is a circular magnet, is adhered to the bottom center of the rotary portion 32, and is disposed facing the inside of the upper case 1. The magnet 36 can be mutually attracted with the iron connecting piece 5, thereby fixing the lower shell 2 extending into the upper shell 1. In practical applications, the magnet 36 may also be a square or other magnet, and is not limited herein.

The bottom of the upper shell 1 is provided with a ring magnet 4, and the cross section of the ring magnet 4 is L-shaped. The vertical part of the annular magnet 4 is installed on the outer wall of the bottom of the upper shell 1 through threads, and the horizontal part of the annular magnet 4 is located below the upper shell 1. The inner wall of the bottom of the upper shell 1 is provided with a first thread 11, the inner wall of the horizontal part of the annular magnet 4 is provided with a second thread 41, and the first thread 11 and the second thread 41 are both arranged into a circle of threads or a plurality of circles of threads. The iron connecting piece 5 can be stably connected with the bottom of the upper shell 1 through the first threads 11, and the top of the lower shell 2 can be stably connected with the annular magnet 4 through the second threads 41, so that the hand holding feeling of the telescopic device during application is improved.

The lower shell 2 is connected with the upper shell 1 through an iron connecting piece 5, and the iron connecting piece 5 is fixed at the top of the lower shell 2 and is positioned inside the upper shell 1. The upper part of the iron connecting piece 5 is a large cylinder, and the lower part is a small cylinder which are integrally formed. The outer wall of the lower part of the iron connecting piece 5 is provided with threads which are screwed into the top of the lower shell 2, so that the refill or the blade can be conveniently detached and replaced. The outer diameter of the upper portion of the iron link 5 is adapted to the inner diameter of the upper case 1 so that the iron link 5 can slide inside the upper case 1. The outer diameter of the upper portion of the iron connecting member 5 is larger than the outer diameter of the lower case 2, so that the bottom of the iron connecting member 5 can be clamped by the ring magnet 4, thereby preventing the iron connecting member 5 from slipping out from the inside of the upper case 1, and further preventing the lower case 2 from being separated from the upper case 1. The inner diameter of the horizontal part of the ring magnet 4 is smaller than the outer diameter of the upper part of the iron connecting piece 5, so that the ring magnet 4 can clamp the iron connecting piece 5. The inner diameter of the horizontal portion of the ring magnet 4 is larger than the outer diameter of the lower case 2 so that the lower case 2 can slide through the ring magnet 4. The iron connecting piece 5 is integrally made of iron, and in practical application, an iron block can be arranged at the center of the top of the iron connecting piece 5 and can be attracted with the magnet 36 on the rotary cover 3.

In another embodiment, an iron sheet is arranged on the rotary cover 3, the iron connecting piece 5 is made of a magnet, the annular magnet 4 is made of an iron material, and the three components can be attracted in the above manner. The small magnet 34 provided on the rotating portion 32 and the small iron block 35 provided on the fixing portion 31 are interchangeable, and they can be attracted to each other to reset the rotating portion 32.

Go up still the cover and be equipped with insert 12 on the outer wall of casing 1, insert 12 is the hollow circular cylinder structure, sets up between 3 bottoms of rotatory lid and annular magnet 4 tops, adopts padauk, jade article jewelry or noble metal etc. as high-grade gift and uses.

As shown in fig. 3, the present invention further provides a portable retractable pen, which comprises a pen core 6 and the portable retractable device. The pen core 6 is arranged in the lower shell 2, the top of the pen core 6 is in contact with the bottom of the iron connecting piece 5, and the lower portion of the pen core 6 is clamped by the inner wall of the lower shell 2, so that the pen core 6 is prevented from sliding out of the lower shell 2. In a preferred embodiment, the bottom of the iron connecting piece 5 is provided with a clamping groove, and the top of the pen core 6 is clamped in the clamping groove, so that the pen core 6 can be more stable when the telescopic pen is used. When the portable telescopic pen is contracted, the lower shell 2 and the pen core 6 can slide into the upper shell 1, and the pen core 6 is well protected.

As shown in fig. 4, the present invention further provides a portable retractable knife, which comprises a blade 7 and the portable retractable device. The whole blade 7 is a long blade, or the part of the bottom of the blade 7 extending out of the lower shell 2 is a blade. The blade 7 is installed inside the lower case 2, the top of which is in contact with the bottom of the iron connector 5, and the lower part of which is caught by the inner wall of the lower case 2, preventing the blade 7 from sliding out of the lower case 2. In a preferred embodiment, the bottom of the iron connecting piece 5 is provided with a clamping groove, and the top of the blade 7 is clamped in the clamping groove, so that the blade 7 can be more stable when the telescopic cutter is used. When this portable flexible cutter shrink, casing 2 and blade 7 homoenergetic down slide in the inside of casing 1, play fine guard action to blade 7, can also avoid the finger by the fish tail.

In another embodiment of the portable telescopic cutting tool, as shown in fig. 5, the lower housing 2 is a hollow short cylinder structure, the bottom of the lower housing is provided with a long hole, and the blade 7 is a conventional blade made of chrome steel or stainless steel. The blade 7 passes through the long hole at the bottom of the lower shell 2, and the top of the blade 7 is welded at the bottom of the iron connecting piece 5. The knife can be used as fruit knife.

Taking the portable retractable pen provided by the utility model as an example, before use, the whole pen is turned downwards, and the rotary cap 3 is rotated, so that the magnet 36 on the rotary cap 3 is separated from the iron connecting piece 5. Thus, the lower case 2 is slid out from the inside of the upper case 1 to the bottom end of the upper case 1. At this moment, annular magnet 4 and the mutual actuation of iron connecting piece 5 rotate casing 2 down, make iron connecting piece 5 firm through first screw thread 11 and last casing 1, make casing 2 firm through second screw thread 41 and annular magnet 4 down simultaneously, casing 2 is fixed down like this, and whole flexible pen extension can supply to write. In this process, after the magnet 36 is separated from the iron connector 5, the rotary cover 3 is slightly rotated until the small magnet 34 is engaged with the small iron block 35, so that the rotary part 32 is reset. When the pen is used or needs to be carried, the whole pen is placed upwards, then the lower shell 2 is rotated reversely and the lower shell 2 is pushed, the lower shell 2 slides into the upper shell 1 until the iron connecting piece 5 and the magnet 36 are mutually attracted. Like this, refill 6 and lower casing 2 all contract to the inside of upper casing 1, can protect the refill portable again.

According to the principle, when the portable cutter provided by the utility model is adopted, the cutter can be stretched by rotating the rotary cover. Specifically, the rotary cover is rotated, and the cutter can be used when the magnet on the rotary cover is separated from the iron connecting piece which is attracted with the annular magnet. When the magnet on the rotary cover is attracted with the iron connecting piece, the cutter is contracted, so that the rotary cover is convenient to carry and can prevent the blade from hurting people, and the rotary cover has strong practicability.

When the refill or the blade needs to be replaced, the annular magnet is firstly detached from the upper shell, the iron connecting piece is detached from the lower shell, and then the refill or the blade is taken out for replacement. In addition, the end part of the lower shell can be designed into a thread split type design, and the end part of the lower shell is directly screwed off to replace a pen core or a blade.

For the portable cutter shown in fig. 5, when the blade needs to be replaced, the annular magnet is firstly detached from the upper shell, then the iron connecting piece is detached from the lower shell, and the iron connecting piece and the blade are integrally replaced. Because the cutter has long service life, the cutter blade does not need to be replaced generally.

It should be noted that: the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A portable telescopic device is characterized by comprising an upper shell, a lower shell and a rotary cover, wherein the lower shell is sleeved in the upper shell and can be telescopic along the inner wall of the upper shell, the rotary cover is arranged at the top of the upper shell and can rotate on the top plane of the upper shell, a magnet is arranged on the rotary cover and faces the inner part of the upper shell,

the outer wall of the bottom of the upper shell is provided with an annular magnet,

the top of the lower shell is provided with an iron connecting piece which is positioned inside the upper shell, the annular magnet can prevent the iron connecting piece from sliding out of the inside of the upper shell,

the magnet and the annular magnet can attract the iron connecting piece.

2. The portable telescopic device according to claim 1, wherein the rotary cover is composed of a fixed part and a rotary part, the fixed part is a collar structure and is fixed on the top of the upper housing by a screw, the rotary part is mounted on the top of the fixed part by a pin, and the pin is located at the edge of the rotary part and the fixed part.

3. The portable telescopic device according to claim 2, wherein a small magnet is provided at a bottom edge of the rotating portion, and the small magnet and the pin are symmetrically positioned along a center of the rotating portion; the top edge of fixed part is equipped with little iron plate, little magnet can with little iron plate actuation each other.

4. The portable telescopic device according to claim 2, wherein said magnet is a circular magnet adhered to the bottom center of said fixed portion.

5. The portable telescopic device according to claim 1, wherein the bottom inner wall of said upper housing is provided with a first thread, and the bottom inner wall of said ring magnet is provided with a second thread, said first thread being capable of stabilizing said iron connector, said second thread being capable of stabilizing said lower housing.

6. The portable telescopic device according to claim 1, wherein an outer diameter of the upper portion of said ferrous connector is adapted to an inner diameter of said upper housing and is larger than an outer diameter of said lower housing; the lower part of the iron connecting piece is screwed into the lower shell through threads.

7. The portable telescopic device according to claim 1, wherein said ring magnet is L-shaped in cross section, has a bottom inner diameter smaller than an outer diameter of an upper portion of said iron link and larger than an outer diameter of said lower housing, and is screw-mounted on a bottom outer wall of said upper housing.

8. The portable telescopic device according to claim 1, wherein an insert is further sleeved on the outer wall of the upper housing, the insert is of a hollow cylindrical structure, and is arranged between the bottom of the rotary cover and the top of the ring-shaped magnet and made of rosewood, jade jewelry or precious metal.

9. A portable retractable pen comprising a cartridge and the portable retractable device according to any one of claims 1 to 8, wherein the cartridge is installed in the lower case, the top of the cartridge is in contact with the bottom of the iron connector, and the lower portion of the cartridge is caught by the inner wall of the lower case.

10. A portable telescopic cutter comprising a blade and the portable telescopic device of any one of claims 1 to 8, said blade being mounted in said lower housing with a top portion of said blade in contact with a bottom portion of said ferrous link and a lower portion of said blade being captured by an inner wall of said lower housing.

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