Anti-false-triggering structure and shaver

Abstract

The utility model relates to the field of shavers, and provides a false triggering prevention structure and a shaver. A first conduction vibrating needle, second conduction vibrating needles and a circuit board are correspondingly arranged on the shaver, the circuit board recognizes charges conducted through the first conduction vibrating needle and the second conduction vibrating needles and then starts the shaver, the false triggering prevention structure comprises a third conduction vibrating needle, the third conduction vibrating needle is communicated with the circuit board, and when the second conduction vibrating needles are mutually conducted through interference media, the third conduction vibrating needle is connected with the circuit board. And the third conduction vibrating needle is communicated with the second conduction vibrating needle and the circuit board, so that the circuit is short-circuited, and the circuit board cannot start the shaver. The shaver comprises the false triggering prevention structure. According to the anti-false-triggering structure and the shaver, the third conduction vibrating needles are arranged in the shaver, when the shaver is cleaned, the second conduction vibrating needles are mutually conducted through the water medium, the third conduction vibrating needles are also communicated with the second conduction vibrating needles through the water medium, and therefore a circuit is short-circuited; the condition that the shaver is started after the second conduction elastic needles are mutually conducted when the shaver is cleaned is prevented, and the loss of electric quantity is reduced.

Description

Technical Field

[0001] The utility model relates to the field of shavers, and further relates to an anti-mistriggering structure and a shaver. Background Art

[0002] More and more existing shavers use induction switches, which are turned on by human pressure induction to improve the convenience and experience of using the shaver. However, the induction switch makes it easy to accidentally touch the induction switch during transportation, causing the shaver to be turned on when not in use, resulting in power loss. Even when the shaver is cleaned, water is used as a universal medium to connect the conductive parts, causing the induction switch of the shaver to be turned on during cleaning, and the shaver keeps working and cannot be cleaned normally; after cleaning, if there is residual water in the shaver, it will also cause the induction switch to continue to be turned on, causing the induction switch to be unable to be turned off. Utility Model Content

[0003] In view of the above technical problems, the purpose of the utility model is to provide an anti-false triggering structure and a shaver. A third conductive spring pin is provided in the shaver. When the shaver is cleaned, the second conductive spring pins are connected to each other through a water medium, and the third conductive spring pin is also connected to the second conductive spring pin through a water medium, causing a short circuit in the circuit, thereby preventing the second conductive spring pins from being connected to each other and starting the shaver when the shaver is cleaned, thereby reducing power loss and facilitating cleaning of the shaver.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an anti-false triggering structure, which is installed on a shaver, and the shaver is correspondingly provided with a plurality of first conductive spring pins, a plurality of second conductive spring pins and a circuit board, the first conductive spring pins and the second conductive spring pins are correspondingly matched, and the circuit board starts the shaver after recognizing the charge conducted by the first conductive spring pins and the second conductive spring pins, and the anti-false triggering structure includes a third conductive spring pin, and the third conductive spring pin is connected to the circuit board. When the plurality of second conductive spring pins are mutually conductive through an interference medium, the third conductive spring pin is also connected to the second conductive spring pin and the circuit board through the interference medium, causing a short circuit in the circuit, so that the circuit board cannot start the shaver.

[0005] In some embodiments, the shaver includes a blade net, a head cover, and a main body shell, an elastic blade holder for limiting the blade net is further provided inside the head cover, the first conductive spring pin is floatingly installed on the elastic blade holder and is suitable for contacting and conducting with the blade net; a placement groove is provided on the top of the main body shell, the second conductive spring pin is spaced apart in the placement groove of the main body shell along the length direction of the main body shell, and the second conductive spring pin is suitable for conducting the first conductive spring pin and the circuit board;

[0006] The third conductive spring pin is also arranged in the placement groove of the main body shell and is located relatively at the center of the interval of the second conductive spring pin.

[0007] In some embodiments, the third conductive spring pin is relatively located inside the main body shell and does not penetrate the upper side wall of the main body shell;

[0008] It also includes a plurality of fourth conductive elastic pins, one end of which is relatively located in the placement groove, and the other end of which penetrates through the side wall of the main body shell and is connected to the third conductive elastic pin.

[0009] In some embodiments, one end of the third conductive spring pin is connected to the circuit board, and the other end thereof penetrates through the upper side wall of the main body shell and reaches the placement groove.

[0010] In some embodiments, the second conductive spring pin, the third conductive spring pin, and the circuit board are located on the same side of the main body shell, and the fourth conductive spring pin is located on the opposite side of the third conductive spring pin.

[0011] In some embodiments, the fourth conductive spring pins are arranged at intervals along the length direction of the main body shell, and a conductive member is further provided inside the main body shell, and the conductive member connects the third conductive spring pin and the fourth conductive spring pin.

[0012] In some embodiments, a second magnetic part is further provided in the center of the main shell, and the conductive part includes a plurality of first parts, a second part and a third part, the first part corresponds to connecting two of the fourth conductive spring pins, the second part surrounds the second magnetic part and then connects the third part and the first part, and the third part is connected to the circuit board.

[0013] In some embodiments, a knife holder knob for fixing the elastic knife holder is provided at the center of the bottom of the elastic knife holder, and four first conductive spring pins are symmetrically arranged at four corners of the knife holder knob along the length direction and the width direction of the main body shell;

[0014] The two fourth conductive spring pins are relatively located outside a pair of the first conductive spring pins along the length direction of the main body shell, so that the fourth conductive spring pins are staggered with the first conductive spring pins.

[0015] In some embodiments, a conducting column is correspondingly disposed in the placement groove, and the conducting column is relatively close to the side wall of the placement groove. The second conducting elastic needle and the fourth conducting elastic needle respectively penetrate the conducting column and then reach the placement groove.

[0016] According to another aspect of the present application, a shaver is further provided, comprising any one of the anti-mis-triggering structures of the above preferred embodiments.

[0017] Compared with the prior art, the anti-mis-triggering structure and the shaver provided by the utility model have at least one of the following beneficial effects:

[0018] 1. A third conductive spring pin is provided in the shaver. When the shaver is cleaned, the second conductive spring pins are connected to each other through the water medium, and the third conductive spring pin is also connected to the second conductive spring pin through the water medium, causing a short circuit in the circuit, thereby preventing the second conductive spring pins from being connected to each other and starting the shaver when the shaver is cleaned, thereby reducing power loss and facilitating cleaning of the shaver.

[0019] 2. The third conductive spring pin is arranged at the center of the interval between the two third conductive spring pins, and the third conductive spring pin is connected to the circuit board, which reduces the connection distance between the third conductive spring pin and the circuit board, reduces the cost, and has a more reasonable structure.

[0020] 3. The fourth conductive spring pin is located on the opposite side of the third conductive spring pin, so that the fourth conductive spring pin and the second conductive spring pin are far away from each other, the distance between the fourth conductive spring pin and the second conductive spring pin is increased, and the fourth conductive spring pin and the second conductive spring pin are prevented from being too close to each other, thereby reducing the triggering frequency of the anti-false triggering structure and preventing the anti-false triggering structure from affecting the user experience.

[0021] 4. The two fourth conductive spring pins are relatively located outside the pair of first conductive spring pins along the length direction of the main body shell, so that the fourth conductive spring pins are staggered with the first conductive spring pins to avoid mutual interference between the first conductive spring pins and the fourth conductive spring pins, and at the same time further optimize the distance between the fourth conductive spring pins and the third conductive spring pins.

[0022] 5. The second conductive spring needle and the fourth conductive spring needle respectively pass through the conductive column and reach the placement groove, thereby increasing the stability of the second conductive spring needle and the fourth conductive spring needle; at the same time, the conductive ends of the second conductive spring needle and the fourth conductive spring needle are both away from the bottom of the placement groove, thereby preventing the second conductive spring needle and the fourth conductive spring needle from being affected by media such as accumulated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0024] Figure 1 This is a disassembled diagram of a structure to prevent false triggering;

[0025] Figure 2 It is a location diagram of a structure to prevent false triggering;

[0026] Figure 3 It is a structural diagram of the conductive part;

[0027] Figure 4 It is a diagram of the structure of a razor;

[0028] Figure 5 It is a diagram of the structure of the skull;

[0029] Figure 6 This is an exploded view of the skull.

[0030] Description of Figure Numbers:

[0031] Head cover 1, elastic knife holder 11, knife holder knob 111, first magnetic part 112, first conductive spring pin 12, knife net 2, main body shell 3, placement slot 30, second conductive spring pin 31, second magnetic part 32, conductive column 33, circuit board 4, third conductive spring pin 5, fourth conductive spring pin 6, conductive part 7, first part 71, second part 72, third part 73. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0033] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0034] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0035] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the scope of protection of the utility model.

[0037] refer to Figure 1 and Figure 6 The utility model provides an anti-false triggering structure, which is installed on a shaver. A plurality of first conductive spring pins 12, a plurality of second conductive spring pins 31 and a circuit board 4 are correspondingly arranged on the shaver. The first conductive spring pins 12 and the second conductive spring pins 31 are matched with each other. The circuit board 4 starts the shaver after identifying the charge conducted by the first conductive spring pins 12 and the second conductive spring pins 31. The anti-false triggering structure includes a third conductive spring pin 5, which is connected to the circuit board 4. When the plurality of second conductive spring pins 31 are mutually conductive through an interference medium, the third conductive spring pin 5 is also connected to the second conductive spring pin 31 and the circuit board 4 through the interference medium, causing a short circuit in the line, so that the circuit board 4 cannot start the shaver.

[0038] In this embodiment, a third conductive spring pin 5 is provided in the shaver. When the shaver is cleaned, the second conductive spring pins 31 are connected to each other through the water medium, and the third conductive spring pin 5 is also connected to the second conductive spring pin 31 through the water medium, causing a short circuit in the circuit, thereby preventing the second conductive spring pins 31 from starting the shaver after being connected to each other when the shaver is cleaned, thereby reducing power loss and facilitating cleaning of the shaver.

[0039] Specifically, the interference medium includes but is not limited to conductive media such as water and oil. Figures 4 to 6The shaver includes a blade net 2, a head cover 1 and a main body shell 3. An elastic blade holder 11 is also provided inside the head cover 1 to limit the blade net 2. A first conductive spring pin 12 is floatingly installed on the elastic blade holder 11 and is suitable for contacting and conducting with the blade net 2. A placement groove 30 is provided on the top of the main body shell 3. Second conductive spring pins 31 are arranged in the placement groove 30 of the main body shell 3 at intervals along the length direction of the main body shell 3. The second conductive spring pins 31 are suitable for conducting the first conductive spring pins 12 and the circuit board 4. When in use, the human skin presses the blade net 2, the blade net 2 floats and squeezes the first conductive spring pin 12, and the first conductive spring pin 12 is connected with the second conductive spring pin 31, so that the circuit board 4 can identify the human body's micro-charge through the second conductive spring pin 31, the first conductive spring pin 12 and the blade net 2. When an interference medium is provided in the placement slot 30, the second conductive spring pins 31 are mutually conductively connected with the circuit board 4 through the interference medium to form a complete loop. At this time, the third conductive spring pin 5 is also conductively connected to the second conductive spring pin 31 and the circuit board 4 through the interference medium, causing a short circuit in the line, so that the two second conductive spring pins 31 cannot transmit charges, and the circuit board 4 cannot recognize and start the shaver.

[0040] It is worth noting that in a modified embodiment, the third conductive spring pin 5 can also be used as a grounding wire to ground the charges that are mutually conductive between the second conductive spring pins 31 to prevent the circuit board 4 from starting the shaver.

[0041] Further, refer to Figure 1 and Figure 2 The third conductive spring pin 5 is also disposed in the placement groove 30 of the main shell 3 and is located at the center of the interval between the second conductive spring pins 31 .

[0042] In this embodiment, the third conductive spring pin 5 is disposed at the center of the interval between two third conductive spring pins 5 , and the third conductive spring pin 5 is connected to the circuit board 4 , which reduces the connection distance between the third conductive spring pin 5 and the circuit board 4 , reduces the cost, and has a more reasonable structure.

[0043] Specifically, the third conductive spring pin 5 is parallel to the second conductive spring pin 31, and the third conductive spring pin 5 is relatively located inside the main body shell 3 and does not pass through the upper side wall of the main body shell 3; the anti-false triggering structure also includes a plurality of fourth conductive spring pins 6, one end of the fourth conductive spring pin 6 is relatively located inside the placement groove 30, and the other end passes through the side wall of the main body shell 3 and then connects to the third conductive spring pin 5. The interference medium in the placement groove 30 connects the second conductive spring pin 31 and the fourth conductive spring pin 6, the fourth conductive spring pin 6 connects the third conductive spring pin 5, and the third conductive spring pin 5 connects to the circuit board 4.

[0044] It is worth noting that only the fourth conductive spring pin 6 may be provided, and the fourth conductive spring pin 6 is directly connected to the circuit board 4. In another embodiment, the third conductive spring pin 5 may also be perpendicular to the second conductive spring pin 31, that is, the third conductive spring pin 5 extends into the placement slot 30 through the side wall of the placement slot 30, as long as the end thereof away from the placement slot 30 is connected to the circuit board 4, so that when the second conductive spring pins 31 are conductive to each other, the third conductive spring pin 5 conducts the second conductive spring pin 31, causing a short circuit.

[0045] In another modified embodiment, one end of the third conductive spring pin 5 is connected to the circuit board 4 , and the other end thereof passes through the upper side wall of the main body shell 3 and reaches the placement groove 30 .

[0046] Furthermore, the second conductive spring pin 31 , the third conductive spring pin 5 , and the circuit board 4 are located on the same side of the main shell 3 , and the fourth conductive spring pin 6 is located on the opposite side of the third conductive spring pin 5 .

[0047] In this embodiment, the fourth conductive spring pin 6 is located on the opposite side of the third conductive spring pin 5, so that the fourth conductive spring pin 6 and the second conductive spring pin 31 are separated from each other, the distance between the fourth conductive spring pin 6 and the second conductive spring pin 31 is increased, and the fourth conductive spring pin 6 and the second conductive spring pin 31 are prevented from being too close to each other, thereby reducing the triggering frequency of the anti-false triggering structure and preventing the anti-false triggering structure from affecting the user experience.

[0048] Specifically, the fourth conductive spring pin 6 is arranged at intervals along the length direction of the main body shell 3, and a conductive member 7 is also arranged inside the main body shell 3, and the conductive member 7 connects the third conductive spring pin 5 and the fourth conductive spring pin 6. One end of the fourth conductive spring pin 6 is connected to the third conductive spring pin 5 through the interference medium in the placement groove 30, and the other end is connected to the circuit board 4. The fourth conductive spring pin 6 is parallel to the third conductive spring pin 5 and the second conductive spring pin 31. If the fourth conductive spring pin 6 and the second conductive spring pin 31 are located on the same side of the main body shell 3, and the distance between the fourth conductive spring pin 6 and the second conductive spring pin 31 is too small, as long as there is water in the placement groove 30, the fourth conductive spring pin 6 and the second conductive spring pin 31 may be mutually conductive, making the shaver unusable. The fourth conductive spring pin 6 is arranged on the opposite side of the second conductive spring pin 31, so that there is a sufficient distance between the fourth conductive spring pin 6 and the second conductive spring pin 31, so as to avoid the anti-mis-triggering structure being triggered all the time, affecting the normal use of the shaver.

[0049] It is worth noting that the fourth conductive elastic pin 6 includes but is not limited to being arranged on the opposite side of the second conductive elastic pin 31 , and may also be arranged on other slot walls of the placement slot 30 , which is not further limited in the present application.

[0050] Further, refer to Figure 2 and Figure 3A second magnetic member 32 is also provided in the center of the main shell 3. The conductive member 7 includes a plurality of first parts 71, a second part 72 and a third part 73. The first part 71 is connected to two fourth conductive spring pins 6. The second part 72 surrounds the second magnetic member 32 and is connected to the third part 73 and the first part 71. The third part 73 is connected to the circuit board 4.

[0051] Specifically, a knife holder knob 111 for fixing the elastic knife holder 11 is provided at the bottom center of the elastic knife holder 11, and the knife holder knob 111 is also provided with a first magnetic member 112, and a second magnetic member 32 is also provided on the main body shell 3, and the first magnetic member 112 and the second magnetic member 32 match each other, so that the head cover 1 can be detachably installed on the main body shell 3. In this embodiment, the first magnetic member 112 and the second magnetic member 32 match each other, so that the head cover 1 can be detachably installed on the main body shell 3, which is convenient to disassemble and has a good operating experience.

[0052] More specifically, a magnetic slot is provided at one end of the knife holder knob 111 away from the knife net 2, a first magnetic member 112 is provided in the magnetic slot, and a second magnetic member 32 is provided inside the main body shell 3 and relatively located outside the bottom of the placement slot 30. The first magnetic member 112 and the second magnetic member 32 include but are not limited to magnetic materials such as magnets and iron. The second portion 72 of the conductive member 7 extends along the outer edge of the second magnetic member 32 to connect the first portion 71 and the third portion 73, the first portion 71 is correspondingly connected to the fourth conductive spring pin 6, and the third portion 73 is connected to the third conductive spring pin 5.

[0053] It is worth noting that in this embodiment, the head cover 1 and the main body shell 3 are installed by magnetic attraction, but they can also be assembled by structures such as buckles and slots. These are easy for technical personnel in this field to think of, and this application will not elaborate further.

[0054] Further, refer to Figure 4 and Figure 5 The four first conductive spring pins 12 are symmetrically arranged at the four corners of the tool holder knob 111 along the length direction and width direction of the main body shell 3; when the head cover 1 is assembled front and back, the corresponding positions of the head cover 1 and the main body shell 3 are always provided with the first conductive spring pins 12 and the second conductive spring pins 31 that can be connected, which is simple to assemble and convenient to disassemble and use. The two fourth conductive spring pins 6 are relatively located outside a pair of first conductive spring pins 12 along the length direction of the main body shell 3, so that the fourth conductive spring pins 6 are staggered with the first conductive spring pins 12.

[0055] In this embodiment, the two fourth conductive spring pins 6 are relatively located outside a pair of first conductive spring pins 12 along the length direction of the main body shell 3, so that the fourth conductive spring pins 6 are staggered with the first conductive spring pins 12 to avoid mutual interference between the first conductive spring pins 12 and the fourth conductive spring pins 6, and at the same time further optimize the distance between the fourth conductive spring pins 6 and the third conductive spring pins 5.

[0056] Furthermore, a conducting column 33 is correspondingly disposed in the placement groove 30 . The conducting column 33 is relatively close to the side wall of the placement groove 30 . The second conducting elastic needle 31 and the fourth conducting elastic needle 6 respectively penetrate the conducting column 33 and then reach the placement groove 30 .

[0057] In this embodiment, the second conductive spring pin 31 and the fourth conductive spring pin 6 respectively pass through the conductive column 33 and reach the placement groove 30, thereby increasing the stability of the second conductive spring pin 31 and the fourth conductive spring pin 6; at the same time, the conductive ends of the second conductive spring pin 31 and the fourth conductive spring pin 6 are both away from the bottom of the placement groove 30, thereby preventing the second conductive spring pin 31 and the fourth conductive spring pin 6 from being affected by media such as accumulated water.

[0058] Furthermore, the utility model provides a shaver, comprising the anti-mis-triggering structure in any of the above embodiments.

[0059] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An anti-mis-triggering structure, installed on a shaver, wherein the shaver is provided with a plurality of first conductive spring pins, a plurality of second conductive spring pins and a circuit board, wherein the first conductive spring pins and the second conductive spring pins are matched correspondingly, and the circuit board starts the shaver after recognizing the charge conducted by the first conductive spring pins and the second conductive spring pins, wherein the circuit board recognizes the charge conducted by the first conductive spring pins and the second conductive spring pins, and the shaver is started, wherein: include: The third conductive spring pin is connected to the circuit board. When a plurality of the second conductive spring pins are connected to each other through the interference medium, the third conductive spring pin is also connected to the second conductive spring pin and the circuit board through the interference medium, causing a short circuit in the circuit, so that the circuit board cannot start the shaver.

2. The anti-false triggering structure according to claim 1, characterized in that: The shaver comprises a blade net, a head cover and a main body shell, wherein an elastic blade holder for limiting the blade net is provided inside the head cover, wherein the first conductive spring pin is floatingly installed on the elastic blade holder and is suitable for contacting and conducting with the blade net; a placement groove is provided on the top of the main body shell, wherein the second conductive spring pin is spaced apart in the placement groove of the main body shell along the length direction of the main body shell, and the second conductive spring pin is suitable for conducting the first conductive spring pin and the circuit board; The third conductive spring pin is also arranged in the placement groove of the main body shell and is located relatively at the center of the interval of the second conductive spring pin.

3. The anti-false triggering structure according to claim 2, characterized in that: The third conductive spring pin is relatively located inside the main body shell and does not penetrate the upper side wall of the main body shell; It also includes a plurality of fourth conductive elastic pins, one end of which is relatively located in the placement groove, and the other end of which penetrates through the side wall of the main body shell and is connected to the third conductive elastic pin.

4. The anti-false triggering structure according to claim 2, characterized in that: One end of the third conductive spring pin is connected to the circuit board, and the other end thereof penetrates through the upper side wall of the main body shell and reaches the placement groove.

5. The anti-false triggering structure according to claim 3, characterized in that: The second conductive spring pin, the third conductive spring pin and the circuit board are located on the same side of the main body shell, and the fourth conductive spring pin is located on the opposite side of the third conductive spring pin.

6. The anti-false triggering structure according to claim 5, characterized in that: The fourth conductive spring pins are arranged at intervals along the length direction of the main body shell. A conductive member is also arranged inside the main body shell. The conductive member connects the third conductive spring pin and the fourth conductive spring pin.

7. The anti-mis-triggering structure according to claim 6, characterized in that: A second magnetic part is also provided in the center of the main body shell, and the conductive part includes a plurality of first parts, a second part and a third part. The first part is correspondingly connected to two of the fourth conductive spring pins, the second part surrounds the second magnetic part and then connects the third part and the first part, and the third part is connected to the circuit board.

8. The anti-mis-triggering structure according to claim 7, characterized in that: A knife holder knob for fixing the elastic knife holder is provided at the center of the bottom of the elastic knife holder, and four first conductive spring pins are symmetrically arranged at the four corners of the knife holder knob along the length direction and the width direction of the main body shell; The two fourth conductive spring pins are relatively located outside a pair of the first conductive spring pins along the length direction of the main body shell, so that the fourth conductive spring pins are staggered with the first conductive spring pins.

9. The anti-false triggering structure according to claim 7, characterized in that: A conducting column is correspondingly arranged in the placement groove, and the conducting column is relatively close to the side wall of the placement groove. The second conducting elastic needle and the fourth conducting elastic needle respectively penetrate the conducting column and then reach the placement groove.

10. A razor, characterized in that: It comprises an anti-false triggering structure as described in any one of claims 1 to 9.

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