WO2012051947A1

WO2012051947A1 - Anti-stabbing apparatus

Info

Publication number: WO2012051947A1
Application number: PCT/CN2011/080997
Authority: WO
Inventors: 罗妙英; 李启业
Original assignee: Law Mui Ying; Li Kai Yip
Priority date: 2010-10-21
Filing date: 2011-10-19
Publication date: 2012-04-26
Also published as: CN102452249A

Abstract

An anti-stabbing apparatus for a slim pointed object comprises a hollow tube body (1) with the inner diameter being greater than the outer diameter of an object therein, so that the slim pointed object can slide freely in the tube body (1). An end of the tube body (1) has a holding hole (5) for holding the slim pointed object, such as a pencil, in the tube body (1). A user uses fingers to hold the body of the pencil through the holding hole (5), to write normally. When the fingers are released, and the pencil nib is stabbed at any object, the pencil retracts into the tube body, to avoid being stabbed into the user or others. The anti-stabbing apparatus can further prolong the service life of objects such as a pencil and correct the writing posture of the user.

Description

Anti-stinging device

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an anti-stinging device, and more particularly to a device for preventing a sharp object such as a pencil from stabbing himself or others. Background technique

Preschool and school-age children often accidentally puncture sharp objects such as toys, pencils, and chopsticks into the skin for various reasons. When a sharp object penetrates into the eye, it often causes the injured person's vision to drop significantly, or even Lead to blindness. This type of injury is mainly caused by children's lack of life experience, lack of awareness of possible triggers, self-protection and poor ability to avoid injuries. The American Association for the Prevention of Blindness has pointed out in a report that in 2002, thousands of children under the age of 14 in the United States suffered serious injuries to their eyes. These injuries include toys, stationery, household products, and sporting goods. Pens and pencils are the second most dangerous items, causing more than 3,800 injuries.

On the other hand, when the pencil is used in the tail section, for example, about 1/4 or about 4-5 cm long, the pencil is not easily grasped. Considering the daily pencil usage in the world, if you throw the pencil at this time, it will cause a lot of waste.

The Chinese utility model patent ZL96208413. 1 published on January 1, 1997 discloses a learning tool that can be used with a pencil, which is a pencil sleeve for extending a pencil for writing segments, by a sleeve and A mast consisting of a smaller outer diameter than the inner diameter of the sleeve, the inner diameter of the sleeve of the sleeve is adapted to the diameter of the standard pencil, and the pencil is securely fitted therein, and the inner diameter of the rest of the sleeve is smaller than the inner diameter of the sleeve. When the pencil is not easy to hold the pen in the tail section, the tail section can be placed on the sleeve of the sleeve, and the sleeve is continuously written. After the exhaustion, the remaining section of the pencil in the sleeve can be pulled out by the mast. The pencil case helps to use the pencil to the end as much as possible.

The Chinese utility model patent ZL98200146. 0 announced on June 23, 1999 discloses a pen holder that is placed on a pen, a pencil, and a ballpoint pen. The utility model is composed of a cylindrical sleeve body, wherein the sleeve body is provided with a cylindrical through hole, and the middle part of the sleeve body is formed with three elliptical curved concave surfaces according to the natural shape of the finger, wherein the center of the adjacent two elliptical curved concave surfaces is formed with an elliptical hole. The elliptical holes are all connected to the cylindrical through holes. The sleeve has elasticity, and the pen can be inserted into the sleeve from the cylindrical through hole during use, and is fixed at a position of 2.5-3 cm from the tip of the pen.

However, in the above patent, the pencil needs to be securely fitted in the pencil case or the sleeve, so that the pencil case or the sleeve still cannot prevent the user or others from being inadvertently stabbed by the pencil. Therefore, there is a need in the prior art for a device to protect children from sharp objects such as pencils. Summary of the invention Accordingly, it is an object of the present invention to provide a device capable of preventing an elongated sharp object such as a pencil from stabbing himself or others.

Another object of the present invention is to provide an auxiliary learning tool which can extend a usable writing section of a stationery such as a pencil. In order to achieve the above object, the present invention provides an anti-stabbing device for an elongated sharp object, comprising a hollow tubular body having an inner diameter slightly larger than an elongated sharp object to be mounted in the tubular body. An outer diameter, such that the elongated shape is free to slide after being loaded into the tubular body; one end of the tubular body is a grip end, and the grip end has a grip for holding in the tubular body The gripping hole of a slender, sharp object.

The length of the tubular body may be greater than the length of an elongated sharp object such as a pencil in which it is to be loaded.

The tubular body has a grip end. The grip end has a grip hole for holding an object such as a pencil in the tubular body. The grip holes may be 1-3 and are shaped to be pinched or held by the thumb, forefinger or middle finger. a writing hole is formed on the end surface of the grip end to expose a pen tip or a tip of an object such as a pencil, the diameter of the writing hole being smaller than the outer diameter of the object such as the pencil, and smaller than the inner diameter of the tubular body, so that objects such as pencils do not fall out. .

Another alternative is to mount a sleeve on the end surface of the grip end, the sleeve is connected at one end to the grip end, and the side of the sleeve has a writing hole, the writing hole has a diameter smaller than the pencil, etc. The outer diameter of the object is also smaller than the inner diameter of the tubular body, so that objects such as pencils do not fall out. Preferably, the sleeve is flexible to be applied, for example, to the tip portion of the pencil when in use. In one embodiment, the number of the holding holes is three, the shape of the holding hole is elliptical or circular, and the sleeve includes three holes corresponding to the holding holes.

The tubular body may also have a trailing end. The tail end is for preventing the object such as a pencil from slipping out of the tubular body, and may include components such as a cover and a plug, and the components such as the cover and the plug may be attached to the tail end by any means. For example, threaded, crimped, bonded or snapped, etc.

In an embodiment of the present invention, the trailing end includes two portions, and an inner wall of each portion has a portion that gradually protrudes in opposite directions, such that an inner diameter of the hole at the end portion of the tail end portion is slightly smaller than the elongated portion The outer diameter of a sharp object. With the above structure, the elongated sharp object can be inserted into the stab-resistant device at the trailing end, after which the tail end can hold the elongated sharp object in the stab-resistant device .

The tubular body, the lid/plug, and the cover and the like in the stab-resistant device of the present invention may be made of any suitable material such as plastic, rubber, resin or metal. Preferably, the tubular body, the lid/plug and the cover and the like are made of a transparent and/or non-fragile material.

The shape of the tubular body may be a hollow cylinder, a polygonal cylinder, an elliptical cylinder or the like to match the shape of an object such as a pencil or the like to be mounted therein.

In one embodiment of the invention, the tubular body comprises two or more portions, the portions being detachably coupled together. Preferably, the tubular body comprises a first portion and a second portion; the grip end is located on the first portion and the trailing end is located on the second portion.

The first portion and the second portion may be threaded together; wherein a thread is formed at an end of the first portion opposite the grip end; and at the end of the second portion The opposite end forms a thread corresponding to the thread in the first portion.

For example, the threads on the first portion are external threads and the threads on the second portion are internal threads and vice versa.

A protrusion may be formed on the external thread, and when the first part and the second part are assembled together, the protrusion may be caught in a hole in a sidewall of the corresponding end of the internal thread, so that The connection between one part and the second part is stronger.

Preferably, the grip end and its end surface are integrally formed with the first portion, and the end surface is flexible, and the tail end is integrally formed with the second portion. At this time, it is not necessary to install the above cover.

Taking a pencil as an example, after an object such as a pencil is mounted in the stab-resistant device of the present invention, the tip of the pencil can be exposed from the writing hole of the grip end simply by, for example, lowering the grip end, and then Pinch the pencil body with your fingers through the above holding holes, and then you can write with a pencil normally. If you accidentally puncture the pen tip to any object, simply loosen your finger to retract the pencil into the tube. Since the pencil can slide freely in the tubular body, the force required to retract the pencil into the tubular body is small. That is to say, the tip of the pencil exerts a small force on the object being stabbed, and does not cause damage to the object being stabbed, thereby preventing the user or others from being stabbed, especially their skin or eyes.

The present invention substantially prevents or significantly reduces the pressure on the object being pierced by the tip or sharp portion of an object such as a pencil, and prevents the tip or sharp portion of an object such as a pencil from penetrating into the body of the user or others, especially the skin. Or the eye, thereby achieving the above-mentioned anti-stinging effect. "Removing the penetration pressure" is the core concept of the present invention.

With the stab-resistant device of the present invention, the user can perform a normal, for example, writing operation by holding an object such as a pencil tightly through the holding hole, and can relax when the writing or the like is not performed. Fingers make objects such as pencils easy to retract into the tubular body, thereby preventing accidental puncture of the user or others.

Moreover, since an object such as a pencil is easily retracted into the tubular body when it is not gripped, the anti-stinging device of the present invention can prevent the nib or sharp portion of an object such as a pencil from being broken when hitting a hard object, thereby extending The life of objects such as pencils.

When the stab-resistant device of the present invention is used in combination with a pen, wherein the shape and position of the grip hole can be designed to facilitate placing the finger in the correct position for gripping and writing, therefore, the present invention The stab-resistant device helps the user to grasp the correct posture of the pencil, the position and strength of the pen, and is also a writing technique training and improvement device.

The stab-resistant device of the present invention can be used in combination with a short pencil (for example, only 1-2 cm), which can maximize Use a pencil. Even if the pencil is too short to be held directly, it can be placed in the stab-resistant device of the present invention. Thus, the stab-resistant device of the present invention significantly extends the life of the pencil.

The anti-stinging device of the present invention can be applied to any pen or any slender tool, and can also be applied to homes, kindergartens, primary and secondary schools or training courses, cram schools, and the like. DRAWINGS

1 is a first embodiment of a stab-resistant device according to the present invention, wherein the tip of the pencil is in the writing position.

2 is a first embodiment of a stab-resistant device in accordance with the present invention in which the tip of the pencil is in a retracted position.

Figure 3 is a second embodiment of a stab-resistant device in accordance with the present invention in which the tip of the pencil is in the writing position.

Figure 4 is a second embodiment of the stab-resistant device in accordance with the present invention wherein the tip of the pencil is in the retracted position.

Figure 5 is a third embodiment of the stab-resistant device according to the present invention in which no elongated object is installed.

Figure 6 is a side elevational view of the embodiment of Figure 5 taken along line A-A.

Fig. 7 is an enlarged schematic view showing the tail end of the third embodiment of Fig. 5.

Fig. 8 is a side view of a fourth embodiment of the stab-resistant device according to the present invention, in which an elongated object such as a pencil is mounted.

Figure 9 is an exploded perspective view of the fourth embodiment shown in Figure 8. detailed description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings in the preferred embodiments. 1 to 7 are a first embodiment, a second embodiment, and a third embodiment of the stab-resistant device of the present invention, respectively, in which a pencil is taken as an example of an elongated sharp object.

Figure 1 shows a first embodiment of a stab-resistant device according to the invention. The stab-resistant device comprises a tubular body 1, the inner diameter of the tubular body 1 being slightly larger than the outer diameter of the pencil 6 mounted in the tubular body, so that the pencil 6 can freely slide in the tubular body 1. The length of the tubular body 1 may be larger than the pencil loaded therein. For example, a conventional pencil is generally about 175 mm, and the length of the tubular body 1 may be 180-195 mm.

The shape of the tubular body 1 may be a hollow cylinder, a polygonal prism, an elliptical cylinder or the like to match the shape of the pencil 6 to be mounted therein. 5毫米的范围内。 The thickness of the tubular body may be similar to the thickness of the ordinary ballpoint pen housing, for example, in the range of about 0. 05-0. 5 mm.

One end of the tubular body 1 is a grip end 3. The grip end 3 has a grip hole 5 for holding an object such as a pencil in the tubular body. The grip holes 5 may be 1-3 in shape adapted to be pinched or held by the thumb, index finger or middle finger through the grip hole. Preferably, the holding hole 5 is 2 holes, which are respectively passed by two fingers of the thumb, the index finger and the middle finger. The grip hole pinches or holds the pencil. 5至左右左右左右。 The distance between the holding hole 5 and the end of the holding end 3 may be about 0. 5-4 cm or so. The shape of each of the holding holes 5 may be a circular shape, an elliptical shape or a long groove shape, and the diameter or length is about 0.3-3 cm, so that the tubular body and the pencil are pinched with fingers.

On the end face of the grip end 3, there is a writing hole 4 for exposing the pen tip of the pencil 6, the diameter of the writing hole 4 being smaller than the outer diameter of the pencil 6, and smaller than the inner diameter of the tubular body 1, so that the pencil does not fall out.

The other end of the tubular body 1 is the trailing end 2. The tail end 2 is provided with means for preventing the pencil 6 from falling out of the tubular body 1, the component may comprise a component such as a lid or a plug, the component such as a lid or a plug may be connected in any manner The tail end may be, for example, threaded, crimped, bonded or fastened, etc., and the connection may be detachable or fixed.

In this embodiment, preferably, the grip end 3 and its end face may be integrally formed with the tubular body 1. At this time, the pencil 6 can be placed in the tubular body 1 from the trailing end 2, and then the tail end 2 is closed with a cover or a plug to hold the pencil 6 in the tubular body 1.

The tubular body 1 and the above-described cap or plug and the like in the stab-resistant device of the present invention may be made of any suitable material such as plastic, rubber, resin or metal. Preferably, the tubular body and the cover or plug are made of a transparent and/or non-fragile material. Further, information such as the name, trademark or model of the manufacturer, or other patterns may be printed on the outer surface of the tubular body 1.

As shown in Figure 1, the tip of the pencil 6 is in the writing position. After the pencil is mounted in the stab-resistant device of the present invention, the tip of the pencil can be exposed from the writing hole of the grip end by gravity, for example, by lowering the grip end downward, and then passing through the finger The pen body of the pencil 6 is pinched by the above holding hole 5, and the pencil 6 can be normally used for writing. If you accidentally puncture the pen tip to any object, just loosen your finger to retract the pencil into the tubular body. Since the pencil can slide freely in the tubular body, the force required to retract the pencil into the tubular body is small. That is to say, the tip of the pencil exerts a small force on the object being stabbed, which does not cause damage to the object being stabbed, and can prevent the user or others from being stabbed, especially their skin or eyes.

Figure 2 shows the tip of the pencil in the retracted position in the first embodiment of the stab-resistant device according to the invention. As shown in Fig. 2, the tip of the pencil 6 is retracted into the tubular body 1 without puncturing any user. Even if the end face of the grip end 3 of the tubular body 1 contacts any part of the user's body, it does not sting or stab the user.

Figures 3 and 4 show a second embodiment of the stab-resistant device according to the present invention, wherein Figure 3 shows the tip of the pencil in the writing position and Figure 4 shows the tip of the pencil in the retracted position.

The schemes of Figures 3 and 4 are similar to those of Figures 1 and 2, wherein like reference numerals refer to like elements throughout. The difference between them is that, in the second embodiment of FIG. 3 and FIG. 4, a sleeve 7 is attached to the end of the grip end 3, and one end of the sleeve is connected to the grip end. The side of the sleeve 7 has a writing hole 4. The writing hole 4 Align with the axis of the tubular body, as shown in Figures 3 and 4. The diameter of the writing hole 4 is smaller than the outer diameter of the object such as a pencil, and is smaller than the inner diameter of the tubular body, so that the pencil does not fall out. In this embodiment, the grip end 3 may have no end faces.

Preferably, the sleeve 7 is flexible or elastic, for example made of rubber, resin or plastic, to be attached to the nib portion of the pencil 6 when in use, as shown in Figure 3; The side of the cover 7 can be flat, as shown in FIG.

In the second embodiment, preferably, the tail end 2 may be integrally formed with the tubular body 1, or may be fixed together. At this time, the pencil 6 can be mounted from the grip end 3 into the tubular body 1. That is, the cover 7 can be removed first, and then the pencil 6 is fitted into the tubular body 1, and then the cover 7 is attached to enclose the pencil 6 in the tubular body 1.

Alternatively, in the second embodiment, the pencil 6 can also be mounted into the tubular body 1 from the trailing end 2 in the same manner as in the first embodiment. At this time, the sleeve 7 can be fixedly coupled to the tubular body 1.

A variation of the first and second embodiments is that the trailing end 2 is an open end, and/or the length of the tubular body 1 is less than the length of the pencil 6. However, this method tends to disengage the tubular body 1 from the pencil 6, which is inconvenient to use and is not the most preferable solution.

Figure 5 shows a third embodiment of the stab-resistant device of the present invention. In this embodiment, the sleeve 7 is relatively long and extends beyond the grip hole 5. The holding holes 5 are three, and the sleeve has three holes corresponding to the holding holes through which the user can hold an elongated object such as a pencil. The stab-resistant device may be a tubular body made of a plastic such as ABS (a terpolymer composed of butadiene-acrylonitrile-styrene). The sleeve 7 can be a soft plastic such as silica gel. One end of the sleeve 7 has a writing hole 4 smaller than the outer diameter of the pencil, and the tip of the pen can be exposed to facilitate writing.

In the third embodiment, the structure of the tail end 2 is improved. The tail end 2 includes two inwardly projecting portions which are smoothly swelled in opposite directions along the inner circumference of the tubular body of the stab-resistant device such that the diameter of the hole in the tail end is slightly smaller than the The outer diameter of the elongated object is shown in the side view of the stab-resistant device of Figure 6.

Fig. 7 is an enlarged schematic view showing the above-described trailing end of the third embodiment of Fig. 5. As shown in Fig. 7, the trailing end 2 is divided into two portions along the groove 8, and on the inner side of the end portion of the trailing end 2, two projections 9 are formed. The circumferential surfaces of the two projections 9 along the inner side of the trailing end are gradually convex in a clockwise or counterclockwise direction such that the interval between the highest points of the two projections 9 is smaller than the outer diameter of the elongated object. With this structure, due to the elasticity of the end material (such as plastic), when it is required to load an elongated object such as a pencil, the tip of the pen can be inserted into the hole at the end, and the pencil is pushed hard to open the tail end 2, This loads the pencil. After loading, the hole at the end 2 returns to its original shape. Since the diameter of the hole is smaller than the outer diameter of the pencil, the end 2 can block the pencil from falling out. If it is necessary to take out the elongated object, for example, when the pencil is used at the end, the cover 7 can be removed to cause the pencil to fall out; or the tail end 2 can be opened again to cause the pencil to fall out of the tail end.

Figure 8 is a side view of a fourth embodiment of the stab-resistant device according to the present invention, in which an elongated shape such as a pencil is mounted Object. Figure 9 is an exploded perspective view of the fourth embodiment shown in Figure 8.

In the fourth embodiment of the invention, the shape of the tubular body 1 is modified. The tubular body 1 may comprise two parts: a first part 11 and a second part 12. The grip end 3 is located on the first portion 11 and the trailing end 2 is located on the second portion 12. Preferably, the grip end 3 and its end face may be integrally formed with the first portion 11, and the end face may be flexible, in which case the sleeve 7 need not be installed. Similarly, the trailing end 2 may be formed integrally with the second portion 12, for example, the second portion 12 may be a hollow cylindrical or other cylindrical shape that is closed at one end. Patterns, trademarks, models, and the like may be printed on the first portion 11 and/or the second portion 12.

The first portion 11 and the second portion 12 may be detachably coupled together in any suitable mechanical connection, such as a snap connection, a threaded connection, or the like. Preferably, a thread 14 is formed at an end of the first portion 11 opposite to the grip end 3; and a thread corresponding to the thread 14 is formed at an end of the second portion 12 opposite the tail end 2 . Thus, the first portion 11 and the second portion 12 can be threaded together.

Preferably, as shown in Figure 9, the thread 14 is externally threaded, and the threads on the respective ends of the second portion 12 (i.e., the end opposite the tail end 2) are internal threads (not shown) ). Also, a projection 13 is formed on the thread 14, and when the first portion 11 and the second portion 12 are assembled together, the projection 13 can be caught in the side wall of the corresponding end of the second portion 12. In the upper hole 10, the connection between the first portion 11 and the second portion 12 is made stronger. At this time, if it is necessary to separate the first portion 11 and the second portion 12, the projections 13 can be pressed with a finger, and the first portion 11 and the second portion 12 can be unscrewed.

The positions of the external and internal threads are also interchangeable, and accordingly the positions of the projections 13 and 10 can be interchanged. Similarly, for the sake of design or aesthetics, the tubular body 1 may be further included in more parts, the parts being detachably connected together, for example, according to the threaded connection shown in Fig. 9, even in a tubular shape Two or more connection methods are used in the body 1.

As described above, the stab-resistant device of the present invention can prevent a sharp object such as a pencil from stabbing a user or others by separating the stab-resistant device from sharp objects such as pencils therein. The mechanism of the anti-stinging device of the present invention is that the user can pinch an object such as a pencil with a finger through the holding hole, and the holding force can be directly applied to an object such as a pencil. In a preferred embodiment, the stab-resistant device is longer than an object such as a pencil, so that an object such as a pencil can be completely retracted into the stab-resistant device when not in use to avoid stabbing the user or others.

Heretofore, the technical solutions of the present invention have been described by way of preferred embodiments and with reference to the accompanying drawings, which are considered to be merely illustrative of the principles and concepts of the present invention. Specific construction and operation. A person skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the scope of the present invention, and all such modifications and variations and equivalents thereof are also included in the scope of the present invention.

Claims

Claim

A stab-resistant device for an elongated sharp object, comprising a tubular body (1) having an inner diameter slightly larger than an elongated sharp object to be mounted in the tubular body a diameter such that the elongated sharp object is free to slide after being loaded into the tubular body (1); one end of the tubular body (1) is a grip end (3), and the grip end (3) has A holding hole (5) for holding an elongated sharp object to be loaded into the tubular body.

2. The stab-resistant device according to claim 1, characterized in that the length of the tubular body (1) is greater than the length of the elongated sharp object to be fitted therein.

3. The stab-resistant device according to claim 1, characterized in that the shape of the tubular body is a hollow cylinder, a polygonal prism, an elliptical cylinder to match the shape of an elongated sharp object to be mounted therein. .

4. The stab-resistant device according to claim 1, characterized in that the number of the holding holes (5) is 1-3, and the shape thereof is adapted to be pinched or received by the thumb, the index finger or the middle finger through the holding hole A slender, sharp object that lives in it.

The stab-resistant device according to claim 4, characterized in that the number of the grip holes is two for respectively gripping or holding by two fingers of the thumb, the index finger and the middle finger through the grip hole An elongated, sharp object in the tubular body.

5-4厘米。 The distance between the end of the holding end is about 0. 5-4 cm.

5-3厘米。 The anti-stabbing device according to claim 1, wherein the shape of the holding hole is circular, elliptical or long-shaped, the diameter or length is about 0. 3-3 cm.

8. The stab-resistant device according to claim 1, wherein a writing hole (4) is formed on an end surface of said grip end for exposing a tip end portion of said elongated sharp object therein, said writing hole ( 4) The diameter is smaller than the outer diameter of the elongated sharp object (6) so that the elongated sharp object does not fall out.

9. The stab-resistant device according to claim 8, characterized in that the grip end (3) and its end face are integrally formed with the tubular body (1).

10. The stab-resistant device according to claim 1, characterized in that a sleeve (7) is mounted at an end of the grip end (3), and a side of the sleeve (7) has a writing hole (4). The writing hole (4) is aligned with the axis of the tubular body (1) for exposing a tip end portion of the elongated sharp object therein, the writing hole having a diameter smaller than an outer diameter of the elongated sharp object, Make the slender, sharp objects not fall out.

11. The stab-resistant device according to claim 10, characterized in that the sleeve (7) is flexible or elastic and is made of rubber, resin or plastic.

12. The stab-resistant device according to claim 10, characterized in that the number of the holding holes (5) is three, and the shape of the holding hole (5) is elliptical or circular, the cover (7) ) includes three holes corresponding to the holding holes (5).

13. The stab-resistant device according to claim 1 or 10, characterized in that the other end of the tubular body (1) is a trailing end (2), an end face of the trailing end (2) and the tubular body (1) Integrated.

14. The stab-resistant device according to claim 1 or 10, characterized in that the other end of the tubular body (1) is a trailing end (2), the tail end (2) being provided for preventing the elongated shape from being sharp A component from which the object falls out of the tubular body.

15. The stab-resistant device according to claim 13, characterized in that said means for preventing the elongate sharp object from falling out of the tubular body comprises a cover or a plug, said cover or plug being detachably attached to said tail On the end.

16. The stab-resistant device according to claim 1 or 10, characterized in that the tail end (2) is an open end, and/or the length of the tubular body (1) is smaller than the length of the elongate sharp object.

17. The stab-resistant device according to claim 1, characterized in that said tubular body is made of a transparent and/or non-fragile material.

18. The stab-resistant device according to claim 1, wherein said elongated sharp object is a pencil, and a tip end portion thereof is a pen tip.

19. The stab-resistant device according to claim 1, characterized in that the tail end (2) comprises two portions, the inner wall of each portion having a portion that gradually protrudes in opposite directions, such that the end of the end portion The inner diameter is slightly smaller than the outer diameter of the elongated sharp object.

20. The stab-resistant device according to claim 1, characterized in that the tubular body (1) comprises two or more portions, the respective portions being detachably coupled together.

21. The stab-resistant device according to claim 20, characterized in that said tubular body (3) comprises a first portion (11) and a second portion (12); said gripping end (3) being located in said first portion (11) The upper end (2) is located on the second portion (12).

22. The stab-resistant device according to claim 21, wherein said first portion (11) and said second portion (12) are threaded together; wherein said first portion (11) is said The opposite end of the grip end forms a thread

And (14); and a thread corresponding to the thread (14) in the first portion is formed at an end of the second portion (12) opposite the tail end.

23. An anti-stinging device according to claim 22, characterized in that the thread (14) on the first portion is an external thread and the thread on the second portion (12) is an internal thread and vice versa.

24. The stab-resistant device according to claim 23, characterized in that a projection (13) is formed on the external thread, the projection (13) being snapped in when the first portion and the second portion are assembled together The holes (10) in the side walls of the respective ends of the internal threads make the connection between the first portion and the second portion stronger.

25. The stab-resistant device according to claim 21, characterized in that the grip end (3) and its end face are integrally formed with the first portion (11), and the end face is flexible, the tail end (2 ) is formed integrally with the second portion (12).