A self-defense watch dagger

Abstract

The invention relates to a self-defense watch dagger, comprising a dial, a dagger-end watchband and a grip-end watchband respectively connected to the dial, a connecting arm being fixedly arranged at both ends of the dial, and a watchband head and a plurality of single-section watchbands being arranged in sequence on the dagger-end watchband and the grip-end watchband; a blade groove is provided on at least one side of the single-section watchband of the dagger-end watchband, the blade groove is communicated with the slot of the single-section watchband, a blade is slidably arranged in the blade groove, and the blade edge faces the outside of the single-section watchband; in the dagger-end watchband, a rear plug-in block and a blade of an adjacent front single-section watchband are movably connected through at least one connecting rod assembly; in the watch mode, the blade is hidden in the blade groove; when switching from the watch mode to the dagger mode, the rear plug-in block is pushed into the adjacent front slot, and the connecting rod assembly pushes the corresponding blade to make its blade slide out to the outside of the conductor slot. The invention solves the technical problem that the existing watches have a single function and do not have a self-defense function.

Description

Technical Field

[0001] The invention relates to a watch, in particular to a self-defense watch dagger. Background Art

[0002] A watch, or wristwatch, is an instrument worn on the wrist to tell time. A watch is usually made of leather, rubber, nylon, stainless steel or other materials to make a strap, and the watch head that shows the time is tied to the wrist. However, existing watches have only one function and do not have the function of self-defense. Summary of the invention

[0003] The purpose of the present invention is to provide a self-defense watch dagger to solve the technical problem that the existing watches have a single function and do not have a self-defense function.

[0004] In order to solve the above problems, the present invention provides a self-defense watch dagger, comprising a dial, a dagger-end watchband and a grip-end watchband respectively connected to the dial, a connecting arm is fixed at each end of the dial, and the dagger-end watchband and the grip-end watchband are sequentially provided with a watchband head and a plurality of single-section watchbands;

[0005] The end of the connecting arm and one end of the single-section watchband are respectively provided with slots, and the two inner side walls of the slots are both provided with a first plug hole and a second plug hole at intervals;

[0006] The other end of the single-section watch strap and one end of the watch strap head are respectively provided with an insert block that can be inserted into the corresponding slot, and a protrusion is provided on both side walls of the insert block. A spring pin is also connected to the plug hole, and the spring pin passes through the two side walls;

[0007] In the watch mode, the two ends of the spring pin of the plug block are respectively inserted into the two first plug holes of the adjacent slots; when switching from the watch mode to the dagger mode, the plug block is pushed into the adjacent slot, the two ends of the spring pin of the plug block are separated from the two first plug holes of the slot and inserted into the two second plug holes of the slot, and the protrusions on both sides of the plug block are respectively inserted into the two first plug holes of the slot;

[0008] A blade slot is provided on at least one side of the single-section strap of the dagger-end strap, and the blade slot is connected to the slot of the single-section strap. A blade is slidably arranged in the blade slot, and the blade edge of the blade faces the outside of the single-section strap. In the dagger-end strap, the rear insert block and the adjacent front blade of the single-section strap are movably connected by at least one connecting rod assembly. In the watch mode, the blade is hidden in the blade slot. When switching from the watch mode to the dagger mode, the rear insert block is pushed into the adjacent front slot, and the connecting rod assembly pushes the corresponding blade to make its blade slide out to the outside of the conductor slot.

[0009] Preferably, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of each of the first connecting rod and the second connecting rod is hinged to the rear plug block, and the other end is respectively hinged to the adjacent front blade.

[0010] Preferably, the first connecting rod and the second connecting rod are both straight rods with telescopic function, and in the watch mode, a triangle is formed between the first connecting rod, the second connecting rod and the blade.

[0011] Preferably, the second connecting rod is composed of a second connecting rod segment 1 and a second connecting rod segment 2 which are hinged to each other, and in the watch mode, a quadrilateral is formed among the second connecting rod segment 1, the second connecting rod segment 2, the blade and the first connecting rod.

[0012] Preferably, in the dagger end strap, the upper and lower ends of the rear insert block are connected to the upper and lower bottom surfaces of the adjacent front blade through a connecting rod assembly respectively:

[0013] A first small cylinder and a second small cylinder are respectively arranged at intervals at both ends of the upper and lower bottom surfaces of the blade along the length direction of the blade, and a third small cylinder is respectively arranged at the upper and lower ends of the insert block;

[0014] In the same connecting rod assembly, a through hole 1 is formed at one end of the second connecting rod segment 1, and this through hole is set on the third small cylinder at the corresponding end of the rear plug-in block; the other end of the second connecting rod segment 1 is hinged to one end of the second connecting rod segment 2; the other end of the second connecting rod segment 2 is formed with a through hole 2, and this through hole 2 is set on a second small cylinder on the corresponding bottom surface of the front blade; through holes 3 are respectively formed at both ends of the first connecting rod, and the two through holes 3 are set on the third small cylinder at the corresponding end of the rear plug-in block and the first small cylinder on the corresponding bottom surface of the front blade.

[0015] Preferably, the upper and lower bottom surfaces of the blade groove are respectively provided with guide grooves adapted to the first small cylinder and the second small cylinder of the upper and lower bottom surfaces of the blade, and the guide groove is parallel to the width direction of the blade, and the first small cylinder and the second small cylinder slide along the corresponding guide groove respectively.

[0016] Preferably, two grooves arranged vertically are arranged on the end surface of the insert block, and the two third small cylinders at the upper and lower ends of the insert block are respectively arranged in a groove.

[0017] Preferably, the first plug hole and the second plug hole are both countersunk holes, and the first plug hole and the second plug hole on the same inner wall are connected through a guide groove.

[0018] Preferably, the dagger-end strap and the handle-end strap are both made of metal materials that can be attracted to magnets, and magnets are arranged on the strap heads of the dagger-end strap and the handle-end strap.

[0019] Preferably, the protrusion is an elastic member, and when the protrusion is pressed, its end portion can be flush with the side wall where it is located.

[0020] Compared with the prior art, the present invention has the following technical effects:

[0021] 1. The present invention provides a self-defense watch dagger, which adds a dagger function to the watch and solves the technical problem of the single function of the existing watch.

[0022] 2. The purpose of the present invention is to protect oneself and property safety in the event of a threat to personal safety, and to make lawbreakers helpless. When the present invention is in watch mode, the blade of the blade is hidden in the dagger-end strap. When people are in danger, they can push the dagger-end strap, such as pushing the strap head of the dagger-end strap toward the single-section strap of the dagger-end strap adjacent to it, and then push out the blade in the single-section strap to turn it into a dagger. Therefore, the present invention can save one's own life in times of danger, which can greatly reduce the number of innocent people who are injured or lose their lives due to these bad elements. To a certain extent, it will inevitably increase the difficulty of committing criminal acts, creating conditions for the possibility of stopping the occurrence of criminal acts. The present invention is a portable self-defense watch dagger with high camouflage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a self-defense watch dagger according to a preferred embodiment of the present invention;

[0024] Figure 2 A three-dimensional diagram of a strap head of a dagger-end strap according to a preferred embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a magnet block on the strap head of a dagger-end strap according to a preferred embodiment of the present invention;

[0026] Figure 4 A plan view of a strap head of a dagger-end strap according to a preferred embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of a single section of the dagger end watch strap according to the preferred embodiment of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the blade of the self-defense watch dagger according to the preferred embodiment of the present invention when it is in the watch mode;

[0029] Figure 7 It is a schematic diagram of the structure of the blade of the self-defense watch dagger according to the preferred embodiment of the present invention when it is in dagger mode;

[0030] Figure 8It is a structural schematic diagram of a spring pin according to a preferred embodiment of the present invention;

[0031] Fig. 9 It is a schematic structural diagram of a blade according to a preferred embodiment of the present invention;

[0032] Fig.10 A three-dimensional diagram of a strap head of a grip-end strap according to a preferred embodiment of the present invention;

[0033] Fig.11 It is a structural schematic diagram of a magnet block on the strap head of the grip end strap according to a preferred embodiment of the present invention;

[0034] Fig.12 It is a schematic structural diagram of a single section of the grip end strap according to the preferred embodiment of the present invention;

[0035] Fig.13 It is a schematic structural diagram of a protrusion of a single section of the grip end watchband described in a preferred embodiment of the present invention when pressed by hand. DETAILED DESCRIPTION

[0036] A specific embodiment is described in detail below with reference to the accompanying drawings.

[0037] Please refer to Figures 1 to 11 A self-defense watch dagger comprises a dial 1, a dagger-end strap 2 and a grip-end strap 3 respectively connected to the dial 1, a connecting arm (11, 12) is respectively fixed at both ends of the dial 1, that is, a connecting arm 11 is fixed at one end of the dial 1, and a connecting arm 12 is fixed at the other end, the connecting arm 11 and the connecting arm 12 are symmetrically arranged at the two ends of the dial 1, and are respectively connected to the dagger-end strap 2 and the grip-end strap 3.

[0038] The dagger end strap 2 is provided with a strap head 21 and a plurality of single-section straps 22 in sequence, and the handle end strap 3 is provided with a strap head 31 and a plurality of single-section straps 32 in sequence. The structures of the dagger end strap 2 and the handle end strap 3 are similar. In the present invention, the connection structure between the strap head and the closest single-section strap in the dagger end strap 2 and the handle end strap 3, the connection structure between two adjacent single-section straps, and the connection structure between the connecting arm and the closest single-section strap are all the same, that is, the end of the connecting arm (11, 12) and one end of the single-section strap (22, 23) are respectively provided with slots, and the two inner side walls of the slots are both provided with a first plug hole and a second plug hole at intervals;

[0039] The other end of the single-section watch strap (22, 23) and one end of the watch strap head (21, 31) are respectively provided with an insert block which can be inserted into the corresponding slot, a protrusion is provided on both side walls of the insert block, and a spring pin is also connected to the plug hole, and the spring pin passes through the two side walls of the insert block where it is located;

[0040] When in watch mode, the two ends of the spring pin of the rear plug-in block are respectively inserted into the two first sockets of the adjacent front slot, at which time, the rear plug-in block can rotate between the adjacent front slot so as to be wrapped around the wrist; when switching from watch mode to dagger mode, the rear plug-in block is pushed into the adjacent front slot, the two ends of the spring pin of the plug-in block are disengaged from the two first sockets of the slot and inserted into the two second sockets of the slot, and the protrusions on both sides of the plug-in block are respectively inserted into the two first sockets of the slot, at which time, the adjacent rear plug-in block and the adjacent front slot are straightened and fixed, and can no longer rotate relative to each other; when switching from dagger mode to watch mode, it is only necessary to pull the rear plug-in block backward relative to the slot to which it is connected, the protrusions on both sides of the plug-in block are respectively disengaged from the two first sockets of the slot, the two ends of the spring pin of the plug-in block are disengaged from the two second sockets of the slot and inserted into the two first sockets of the slot, at which time, the rear plug-in block can rotate between the adjacent front slot so as to be wrapped around the wrist.

[0041] The difference between the dagger end strap 2 and the grip end strap 3 is:

[0042] The single-section strap 22 of the dagger-end strap 2 is also provided with a blade 4, while the single-section strap 32 of the grip-end strap 3 does not have a blade 4. When the watch dagger is in the watch mode, the blade 4 is hidden in the single-section strap 22 where it is located, and the dagger-end strap 2 and the grip-end strap 3 are both used as ordinary watch straps. When the watch dagger is switched from the watch mode to the dagger mode, in the dagger-end strap 2, the insert block is pushed into the adjacent slot to straighten the dagger-end strap 2, and at the same time, the insert block is pushed into the adjacent slot of the single-section strap to make the blade 4 extend from the single-section strap 22 where it is located, so that it can be used as a dagger.

[0043] In the grip end strap 3, by pushing the insert block into the adjacent slot, the grip end strap 3 is straightened and used as a grip.

[0044] Since the structures of the dagger end strap 2 and the grip end strap 3 are similar, in order to avoid repeated description of the same structure, only the dagger end strap 2 is described in detail below with reference to the accompanying drawings.

[0045] The direction close to the dial 1 is the front, and the direction away from the dial 1 is the back. Therefore, on the side of the dagger-end strap 2, the strap head 21 of the dagger-end strap 2, a plurality of single-section straps 22, and the connecting arm 11 are connected in sequence from the back to the front:

[0046] A slot is disposed at the end of the connecting arm 11, and a first plug hole and a second plug hole are disposed at intervals on both inner side walls of the slot, and the first plug hole is located behind the second plug hole;

[0047] Please refer to Figure 5and Figure 6 The front and rear ends of the single-section watch band 22 are respectively provided with an insert block 222 and a slot 221. The two inner side walls of the slot 221 are provided with a first insert hole 2211 and a second insert hole 2212 at intervals. The first insert hole 2211 is located at the rear end of the second insert hole 2212. Both side walls of the insert block 222 are provided with a protrusion 2221. The insert block 222 is also provided with a through hole 2222. The through hole 2222 penetrates the two side walls of the insert block 222, and the spring pin penetrates the through hole 2222. In this embodiment, the protrusion 2221 is located behind the spring pin.

[0048] Please refer to Figure 2 The front end of the strap head 21 is provided with an insert block 211, and both side walls of the insert block 211 are provided with a protrusion 2111. The insert block 211 is also provided with a through hole 2112, which penetrates both side walls of the insert block 211, and the spring pin penetrates the through hole 2112. In this embodiment, the protrusion 2111 is located behind the spring pin.

[0049] In the watch mode, the two ends of the spring pin of the insert block 222 of the single-section watch strap 22 adjacent to the connecting arm 11 are respectively inserted into the two first plug holes of the connecting arm 11. In this embodiment, the two ends of the spring pin are respectively matched with the two first plug holes, and there is enough space between the insert block 222 and the slot to ensure that the single-section watch strap 22 and the connecting arm 11 rotate relative to each other, so as to facilitate the strap to be wrapped around the wrist. When switching from the watch mode to the dagger mode, the insert block 222 of the single-section watch strap 22 is pushed into the slot of the front connecting arm 11, and the two ends of the spring pin of the insert block 222 are separated from the two first plug holes of the slot and inserted into the two second plug holes of the slot. The protrusions 2221 on both sides of the insert block 222 are respectively inserted into the two first plug holes of the slot, so that the connecting arm 11 and the single-section watch strap 22 are fixed in a straight state, that is, in a straight state.

[0050] In the watch mode, between two adjacent single-section watch straps 22, the two ends of the spring pin of the insert block of the rear single-section watch strap are respectively inserted into the two first plug holes of the front single-section watch strap. In this embodiment, the two ends of the spring pin are respectively matched with the two first plug holes, and there is enough space between the insert block and the slot to ensure that the two adjacent single-section watch straps rotate relative to each other, so as to facilitate the straps to be wrapped around the wrist. When switching from the watch mode to the dagger mode, the insert block of the rear single-section watch strap is pushed into the slot of the front single-section watch strap, and the two ends of the spring pin of the insert block are separated from the two first plug holes of the slot and inserted into the two second plug holes of the slot. The protrusions on both sides of the insert block are respectively inserted into the two first plug holes of the slot, so that the two adjacent single-section watch straps are fixed in a straight state, that is, in a straight state.

[0051] In watch mode, the two ends of the spring pin of the plug block 211 of the rear strap head 21 are respectively inserted into the two first holes 2211 of the slot 221 of the adjacent single-section strap 22. In this embodiment, the two ends of the spring pin are respectively matched with the two first holes 2211, and there is enough space between the plug block and the slot to ensure relative rotation between the single-section strap 22 and the strap head 21, so as to facilitate the strap to be wrapped around the wrist. When switching from watch mode to dagger mode, the insert block 211 of the strap head 21 is pushed into the slot 221 of the single-section strap 22 in front, and the two ends of the spring pin of the insert block 211 are disengaged from the two first holes 2211 of the slot 221 and inserted into the two second holes 2212 of the slot 221, and the protrusions 2111 on both sides of the insert block 211 are respectively inserted into the two first holes 2211 of the slot 221, so that the strap head 21 and the single-section strap 22 are fixed in a straight line, that is, in a straight state.

[0052] At least one side of the single-section strap of the dagger-end strap 2 is provided with a blade slot 223, and the blade slot 223 is communicated with the slot 221 of the single-section strap 22. A blade 4 is slidably arranged in the blade slot 223, and the blade edge of the blade 4 faces the outside of the single-section strap 22; in the dagger-end strap 2, the rear insert block and the adjacent blade 4 of the front single-section strap are movably connected by at least one connecting rod assembly 5; in the watch mode, the blade 4 is hidden in the blade slot 223, that is, the blade edge of the blade 4 is retracted into the blade slot 223, please refer to Figure 6 When switching from the watch mode to the dagger mode, the rear insert is pushed into the adjacent front slot, and the connecting rod assembly 5 pushes the corresponding blade 4 so that its blade slides out to the outside of the conductor slot, that is, the blade 4 extends from the blade slot 223, please refer to Figure 7 .

[0053] The present invention does not limit the number of connecting rod assemblies 5, such as at least one of the upper, middle and lower ends of the rear plug block is connected to the corresponding end of the front blade 4 through the connecting rod assembly 5, that is, the upper end of the rear plug block corresponds to the upper bottom surface of the front blade 4, the middle end of the rear plug block corresponds to the middle end of the front blade 4, and the lower end of the rear plug block corresponds to the lower bottom surface of the front blade 4).

[0054] In this embodiment, the connecting rod assembly 5 includes a first connecting rod 52 and a second connecting rod 51, one end of each of the first connecting rod 52 and the second connecting rod 51 is hinged to the rear plug block, and the other end is respectively hinged to the adjacent front blade 4. In this embodiment, the two ends of the blade 4 along the length direction are respectively hinged to the first connecting rod 52 and the second connecting rod 51, so as to facilitate the blade 4 to be pushed out without direction deviation.

[0055] As an embodiment, the first connecting rod 52 and the second connecting rod 51 are both straight rods with telescopic function (such as the structure of the above-mentioned spring pin, or made of elastic material, that is, the blade 4 is pushed out by elasticity). In the watch mode, a triangle is formed between the first connecting rod 52, the second connecting rod 51 and the blade 4.

[0056] As another embodiment, the second connecting rod 51 is composed of a second connecting rod segment 1 511 and a second connecting rod segment 2 512 which are hinged to each other. In the watch mode, please refer to Figure 6 , a quadrilateral is formed between the second connecting rod segment 1 511, the second connecting rod segment 2 512, the blade 4 and the first connecting rod 52 (the blade 4 is pushed out by utilizing the instability of the quadrilateral), specifically:

[0057] A first small cylinder 42 and a second small cylinder 41 are respectively arranged at intervals at both ends of the upper and lower bottom surfaces of the blade 4 along the length direction of the blade 4, and a third small cylinder (2114, 2224) is respectively arranged at the upper and lower ends of the insert (211, 222);

[0058] The upper bottom surface of the blade 4 is connected to the third small cylinder at the upper end of the rear plug-in block through a connecting rod assembly 5, and the lower bottom surface of the blade 4 is connected to the third small cylinder at the lower end of the rear plug-in block through a connecting rod assembly 5, and the above two structures are the same. Therefore, this embodiment is described in detail with the specific structure that the upper bottom surface of the blade 4 is connected to the third small cylinder at the upper end of the rear plug-in block through a connecting rod assembly 5. In the same connecting rod assembly 5, a through hole 1 is formed at one end of the second connecting rod segment 1 511, and this through hole is set on the third small cylinder at the corresponding end of the rear plug-in block; the other end of the second connecting rod segment 1 511 is hinged to one end of the second connecting rod segment 2 512; the other end of the second connecting rod segment 2 512 is formed with a through hole 2, and this through hole 2 is set on a second small cylinder 41 on the upper bottom surface of the front blade 4; through holes 3 are respectively formed at both ends of the first connecting rod 52, and the two through holes 3 are respectively set on the third small cylinder at the upper end of the rear plug-in block and the first small cylinder 42 on the upper bottom surface of the front blade 4.

[0059] In the dagger mode, the present invention does not impose any specific restrictions on the shape formed between the second connecting rod segment 1 511, the second connecting rod segment 2 512, the blade 4 and the first connecting rod 52, which can be a quadrilateral or a triangle. In this embodiment, a triangle is preferably used (because the triangle is more stable). Please refer to Figure 7 That is, in the dagger mode, the second connecting rod segment 1 511 and the second connecting rod segment 2 512 form a straight line. In this embodiment, the sum of the two sides of the triangle is greater than the third side, and the third side has a variable range, so the blade is pushed out due to the change of the third side.

[0060] In this embodiment, the upper and lower bottom surfaces of the blade groove 223 are respectively provided with guide grooves 2231 adapted to the first small cylinder 42 and the second small cylinder 41 of the upper and lower bottom surfaces of the blade 4. This guide groove 2231 is parallel to the width direction of the blade 4, and the first small cylinder 42 and the second small cylinder 41 slide along the corresponding guide grooves 2231 respectively.

[0061] In this embodiment, the end surface of the insert block (211, 222) is provided with two grooves (2113, 2223) arranged in an up-and-down manner, and the third small cylinders at the upper and lower ends of the insert block (211, 222) are respectively arranged in a groove.

[0062] In this embodiment, the first and second plug holes are both countersunk holes, and the first and second plug holes on the same inner wall are connected by a guide groove, the purpose of which is to facilitate the movement of the spring pin so that it will not deviate during the movement. Please refer to 5, the guide groove 2212 of the single-section strap 22 of the dagger end strap 2.

[0063] In the watch mode, the dagger end strap 2 and the grip end strap 3 can be connected by existing connection methods, such as by locking, snapping, etc., and the present invention does not make specific restrictions on this. In this embodiment, the dagger end strap 2 and the grip end strap 3 are both made of metal materials that can be attracted by magnets, and magnets are set on the strap heads of the dagger end strap 2 and the grip end strap 3. Please refer to Figure 2 , Figure 3 , Fig.10 and Fig.11 A groove (212, 311) is provided on at least one bottom surface of the strap head of the dagger end strap 2 and the handle end strap 3, and a magnet block (213, 312) adapted to the groove is fixedly installed in the groove.

[0064] In this embodiment, the protrusion is an elastic member, and when the protrusion is pressed, its end portion can be flush with the side wall where it is located.

[0065] Please refer to Fig.12 Taking the single-section strap 32 of the grip end strap 3 as an example, a plug block 321 and a slot are respectively provided at the front and rear ends of the single-section strap 32, and the first and second plug holes are spaced apart on the two inner side walls of the slot. A protrusion 3211 is provided on both side walls of the plug block 321, and a through hole 3212 is also provided on the plug block 321. The through hole 3212 passes through the two side walls of the plug block 321, and a spring pin passes through the through hole 3212. When the protrusion 3211 is pressed into the plug block 321, the protrusion 3211 will shrink into the plug block 321, and its end will be flush with the side wall where it is located. Please refer to Fig.13 .

[0066] In this embodiment, the protrusion is preferably a hemispherical shape.

[0067] The lengths of the dagger end strap 2 and the grip end strap 3 can be the same or different; the lengths of the strap heads of the dagger end strap 2 and the grip end strap 3 can be the same or different, and the present invention does not impose any specific restrictions on this. In this embodiment, the length of the dagger end strap 2 is greater than the length of the grip end strap 3, and the length of the strap head of the dagger end strap 2 is greater than the length of the strap head of the grip end strap 3.

[0068] Features of the present invention:

[0069] Since watch-type daggers are convenient to use and easy to hide, they are mostly used for self-defense. When being held hostage or threatened by criminals, they can be taken off and used as daggers to protect personal life and property through simple operations. When vulnerable groups go out and encounter danger, they can take out the self-defense dagger in time when the criminals are not mentally prepared, which will inevitably make the criminals hesitate. This can not only protect the lives and property of citizens, but also indirectly make the society more stable and harmonious.

[0070] The present invention has two uses. When the strap is straightened and in watch mode, the user can carry it with him / her and use it as an ornament; when the single-section strap is pushed hard, the present invention can be switched to dagger mode. Most of the time, the present invention only needs to be worn on the wrist and used as an ordinary watch. In case of emergency, it can be used to protect oneself. In leisure time, it can also be used as a fruit knife.

[0071] The above disclosure is only a specific embodiment of the present application, but the present application is not limited thereto, and any changes that can be conceived by technicians in this field should fall within the protection scope of the present application.

Claims

1. A self-defense watch dagger, characterized in that: It comprises a dial, a dagger-end watchband and a grip-end watchband respectively connected to the dial, a connecting arm is fixedly arranged at both ends of the dial, and the dagger-end watchband and the grip-end watchband are respectively provided with a watchband head and a plurality of single-section watchbands; The end of the connecting arm and one end of the single-section watchband are respectively provided with slots, and the two inner side walls of the slots are both provided with a first plug hole and a second plug hole at intervals; The other end of the single-section watch strap and one end of the watch strap head are respectively provided with an insert block that can be inserted into the corresponding slot, and a protrusion is provided on both side walls of the insert block. A spring pin is also connected to the plug hole, and the spring pin passes through the two side walls; the protrusion is an elastic member, and when the protrusion is pressed, its end can be flush with the side wall where it is located; In the watch mode, the two ends of the spring pin of the plug block are respectively inserted into the two first plug holes of the adjacent slots; when switching from the watch mode to the dagger mode, the plug block is pushed into the adjacent slot, the two ends of the spring pin of the plug block are separated from the two first plug holes of the slot and inserted into the two second plug holes of the slot, and the protrusions on both sides of the plug block are respectively inserted into the two first plug holes of the slot; A blade slot is provided on at least one side of the single-section strap of the dagger-end strap, the blade slot is connected to the slot of the single-section strap, a blade is slidably arranged in the blade slot, and the blade edge of the blade faces the outside of the single-section strap; in the dagger-end strap, the rear insert block and the adjacent blade of the front single-section strap are movably connected through at least one connecting rod assembly; in the watch mode, the blade is hidden in the blade slot; When switching from the watch mode to the dagger mode, the rear insert block is pushed into the adjacent front slot, and the connecting rod assembly pushes the corresponding blade to make its blade slide out to the outside of the blade slot; The connecting rod assembly comprises a first connecting rod and a second connecting rod, wherein one end of the first connecting rod and the second connecting rod are both hinged to the rear plug block, and the other end are respectively hinged to the adjacent front blade.

2. A self-defense watch dagger as claimed in claim 1, characterized in that: The first connecting rod and the second connecting rod are both straight rods with telescopic function. In the watch mode, a triangle is formed between the first connecting rod, the second connecting rod and the blade.

3. A self-defense watch dagger as claimed in claim 1, characterized in that: The second connecting rod is composed of a second connecting rod segment 1 and a second connecting rod segment 2 which are hinged to each other. In the watch mode, a quadrilateral is formed between the second connecting rod segment 1, the second connecting rod segment 2, the blade and the first connecting rod.

4. A self-defense watch dagger as claimed in claim 3, characterized in that: In the dagger end strap, the upper and lower ends of the rear insert block are connected to the upper and lower bottom surfaces of the adjacent front blade through a connecting rod assembly respectively: A first small cylinder and a second small cylinder are respectively arranged at intervals at both ends of the upper and lower bottom surfaces of the blade along the length direction of the blade, and a third small cylinder is respectively arranged at the upper and lower ends of the insert block; In the same connecting rod assembly, a through hole 1 is formed at one end of the second connecting rod segment 1, and this through hole is set on the third small cylinder at the corresponding end of the rear plug-in block; the other end of the second connecting rod segment 1 is hinged to one end of the second connecting rod segment 2; the other end of the second connecting rod segment 2 is formed with a through hole 2, and this through hole 2 is set on a second small cylinder on the corresponding bottom surface of the front blade; through holes 3 are respectively formed at both ends of the first connecting rod, and the two through holes 3 are set on the third small cylinder at the corresponding end of the rear plug-in block and the first small cylinder on the corresponding bottom surface of the front blade.

5. A self-defense watch dagger as claimed in claim 4, characterized in that: The upper and lower bottom surfaces of the blade groove are respectively provided with guide grooves adapted to the first small cylinder and the second small cylinder of the upper and lower bottom surfaces of the blade, and the guide groove is parallel to the width direction of the blade, and the first small cylinder and the second small cylinder slide along the corresponding guide grooves respectively.

6. A self-defense watch dagger as claimed in claim 4, characterized in that: The end surface of the insert block is provided with two grooves arranged in an up-and-down manner, and the two third small cylinders at the upper and lower ends of the insert block are respectively arranged in a groove.

7. A self-defense watch dagger as claimed in claim 1, characterized in that: The first plug hole and the second plug hole are both countersunk holes, and the first plug hole and the second plug hole on the same inner wall are connected through a guide groove.

8. A self-defense watch dagger as claimed in claim 1, characterized in that: The dagger-end watchband and the handle-end watchband are both made of metal materials that are attracted to magnets, and magnets are arranged on the watchband heads of the dagger-end watchband and the handle-end watchband.

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