WO2018053796A1 - 一种具有双刀片的实用刀 - Google Patents

一种具有双刀片的实用刀 Download PDF

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Publication number
WO2018053796A1
WO2018053796A1 PCT/CN2016/099850 CN2016099850W WO2018053796A1 WO 2018053796 A1 WO2018053796 A1 WO 2018053796A1 CN 2016099850 W CN2016099850 W CN 2016099850W WO 2018053796 A1 WO2018053796 A1 WO 2018053796A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
movable member
blade
limiting
blade carrier
Prior art date
Application number
PCT/CN2016/099850
Other languages
English (en)
French (fr)
Inventor
王伟毅
Original Assignee
杭州巨星工具有限公司
杭州巨星科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州巨星工具有限公司, 杭州巨星科技股份有限公司 filed Critical 杭州巨星工具有限公司
Priority to PCT/CN2016/099850 priority Critical patent/WO2018053796A1/zh
Priority to US16/335,479 priority patent/US10994430B2/en
Publication of WO2018053796A1 publication Critical patent/WO2018053796A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/003—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use comprising retraction means for the blade or the blade holder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/02—Guards or sheaths for knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B1/00—Hand knives with adjustable blade; Pocket knives
    • B26B1/10—Handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use

Definitions

  • the utility model relates to the field of hand tools, and more particularly to a utility knife with double blades.
  • the utility knife is a very common tool in the manual tool, and the utility knife is also widely used, and can be used for cutting in almost various occasions, and is a household standing tool.
  • the use of utility knives is also very insecure, especially for small children. Therefore, the safety performance of the utility knife is very important.
  • the utility model patent "two-way utility knife” discloses such a utility knife with a double blade.
  • the blade can protrude from both ends of the shank, and the structure comprises a shank, a blade carrier, a pusher assembly, and a blade.
  • the blade carrier is movably mounted in the shank, and the pusher assembly is coupled to and protruded from the knive.
  • the two ends of the blade carrier are provided with a telescopic buckle, and the shank is provided with a first position, an intermediate position and a second position for positioning the push unit, and the push unit is installed at the first position or the second position.
  • One blade on the blade carrier extends out of the shank and the other blade retracts into the shank, and the two blade carriers mounted on the machine are retracted into the shank when the pusher assembly is positioned and in the intermediate position.
  • the design of the two-way utility knife lacks a protection device, because the two-way knife is divided into a use end and a hand-held end when used, and the hand-held end blade may protrude due to an erroneous operation during use of the use end of the cutter, and there is a certain Security risks.
  • the present invention provides a utility knife having a double blade, comprising: a housing having a first end and a second end for respectively carrying the blade carriers of the two blades at both ends, Mounted within the housing and movable within the housing to enable the blade to protrude from either of the first end and the second end of the housing; and a movable member for movable movement The other end opposite the either end of the first end or the second end, thereby blocking the blade from projecting at the opposite end of either of the first end or the second end.
  • the movable member includes a sheath for nesting at an edge of the first or second end.
  • the movable member is translatably mounted on the housing for moving to the first end or the second end respectively along the housing, both sides of the movable member There is a movable guard for the gear at the first end and the second end.
  • one end of the movable member is coupled to the intermediate portion of the housing, and the other end is movable to the first end or the second end of the housing, respectively, and the other end of the movable member is connected to the guard For the gear at the first end or the second end.
  • one end of the movable member is pivotally coupled to the intermediate portion of the housing to enable the movable member to pivot about the shaft so as to be movable to both ends of the housing.
  • the movable member further includes a through hole at the movable member, a button capable of passing through the through hole, and an elastic member connected to the button.
  • the upper housing has a button hole at a position corresponding to the button for accommodating the button pressed on the movable member.
  • a groove is disposed at a position corresponding to the button hole of the blade carrier, and the groove cooperates with the button and the elastic member, only When the blade carrier is at an intermediate position of the housing, the resilient member is engageable with the recess through the button aperture such that the resilient member can be compressed within the recess.
  • the utility knife with double blades of the present invention further includes a rotating member between the housing and the blade carrier, and is connected with the movable member shaft, such as a first shaft or a second shaft, which can be connected with the movable member.
  • the rotating member has a blocking portion on one side of the rotating member, and when the movable member is rotated to one end of the housing, the blocking portion is rotated on the rotating member to Adjacent to one side of the movable member, thereby blocking movement of the blade carrier toward an end where the movable member is located.
  • an intermediate position on the blade carrier is provided with a convex portion protruding forward, and when the movable member is rotated to one end of the housing, the blocking portion is located at the convex portion near the movable member One side such that the blocking portion can block the convex portion on the blade carrier from moving toward one end of the movable member.
  • the movable member tail portion is provided with a structural body, wherein the structural body has a pin hole at a center, and the pin is connected to the movable member through the pin hole.
  • the structural body is respectively connected to the movable member via two fixing members on both sides of the pin hole at the center position, thereby fixing the structural body and the movable member.
  • the structural body is connected with an elastic structure
  • the elastic structure is fixedly connected with the intermediate position of the structural body, or extends integrally, wherein the elastic structure comprises two fins and extends from the intermediate position to the two sides respectively. And protrude inward at the end.
  • the movable member is provided with a rib which can cooperate with the housing to prevent the movable member from fluctuating up and down.
  • the movable member is adapted to be sized to accommodate the housing in the movable member, wherein one end of the movable member is connected to the housing through a shaft, and the other end is passed through a pin The movable member is fixed.
  • the movable member includes a first movable member and a second movable member respectively located at two sides of the housing, wherein the first movable member is connected to the upper housing on the upper side of the housing through the first shaft,
  • the second movable member is connected to the lower casing of the lower side of the casing through a second shaft, wherein the first shaft and the second shaft may be two parts of the integral shaft, or two separate ends at one end of one axis axis.
  • first movable member and the second movable member of the movable member respectively have a first through hole, a first button and a second through hole, and a second button at a position close to the end, wherein the first button is located The first through hole, the second button is located in the second through hole.
  • first button and the second button are connected by an elastic body or integrally formed with the elastic body.
  • the elastic body has a curved shape.
  • the elastic body includes a first portion, a second portion and a third portion, and the first portion and the third portion are respectively connected to the first button and the second button, forming a gap therebetween, and extending to one side,
  • the second portion is located between the first portion and the third portion, and the two ends are respectively connected to the first portion and the third portion, above the gap, and the opposite side extends.
  • the structure has inward projections at the upper and lower portions, respectively.
  • the inward side of the structure further has a groove.
  • first shaft axially connects the first movable member and the upper housing through the handle hole on the first movable member and the housing hole on the upper housing, wherein the housing hole further has a long strip shape on both sides thereof Slot.
  • first protective layer between the first casing and the first movable member
  • second protective layer between the second casing and the second movable member, wherein the first protective layer and The second protective layer has a hole at each of the positions of the first axis and the second axis.
  • the present invention also provides a utility knife having a double blade, comprising: a housing having an opening at both ends, a blade carrier mounted in the housing and being Moving in the housing, a moving component connected to the blade carrier, for driving the blade carrier to move toward the two ends of the housing, the limiting member, the limiting member has a limiting portion, wherein The blade carrier is provided with a resisting portion, and the limiting portion can change the relative position with the abutting portion, so that the blade carrier can be moved toward a direction desired by the user.
  • the utility model of the present invention further includes a triggering member connected to the limiting member and disposed outside the housing, the triggering member driving the limiting member to move the limiting portion A position that can be changed on both sides of the abutting portion.
  • the limiting member includes an annular body having a side opening, and a side wall opposite to the opening on the annular body is a limiting portion, wherein a width of the opening is greater than a width of the resisting portion, The abutting portion can enter the inside of the annular body through the slit.
  • the limiting member has a connecting portion extending outward from one end of the annular body and connected to the triggering member, wherein the triggering member can drive the annular body to rotate.
  • the outer surface of the connecting portion has a spaced flange, and the inner portion of the triggering member has a corresponding recess, so that the triggering member and the connecting portion can cooperate to perform a rotary motion.
  • the outer portion of the trigger member is disposed as a circular cover body, and the cover body has a through hole in the center thereof, and the trigger member further includes a screw having a connection between the rod portion and the rod portion and a head larger than the cross section of the rod portion The stem of the screw can pass through the through hole, and the head is restricted to the outside of the through hole of the cover.
  • the connecting portion further has a connecting hole therein, and the screw is internally accommodated and cooperates with the screw to fix the triggering member and the limiting member to each other.
  • the trigger member further has a direction indicator indicating a direction in which the blade carrier can move.
  • the housing further has a first slot, a second slot and a third slot, respectively corresponding to the moving component in a first position, an intermediate position, and a second position.
  • the moving assembly includes a manual portion and an extension connected to the manual portion, the extension portion further having lateral shoulders for respectively engaging the first groove, the second groove and the third groove.
  • the limiting member includes a protrusion that can block the abutting portion of the blade carrier.
  • the limiting member has a connecting portion extending outward from one end of the protruding block and connected to the triggering member, wherein the triggering member can rotate with the protruding block, so that the protruding block can be respectively separated Move to both sides of the abutting portion.
  • the present invention also provides a utility knife having a double blade, comprising: a housing having an opening at both ends, a blade mounted in the housing and movable within the housing a carrier member, a moving component connected to the blade carrier, configured to move the blade carrier toward the two ends of the housing, the limiting member, wherein the blade carrier is provided with a resisting portion, wherein The limiting member can change the relative position of the resisting portion. When the limiting member is in the limiting position, the limiting member can limit the resisting portion to limit the blade carrier, when the limiting member When in the disengaged position, the limiting member releases the abutting portion to enable the blade carrier to move.
  • the utility model of the utility model further includes a triggering member connected to the limiting member and disposed outside the housing, the triggering member driving the limiting member to move the limiting portion The position can be changed between the limit position and the disengagement position on both sides of the resisting portion.
  • the resisting portion is specifically a front protrusion at a middle position of the blade carrier
  • the limiting member is a hollow body
  • the triggering member is a pushing member connected to the limiting member, and the limiting position can be pushed
  • the front and rear moving operations are performed, and when the limiting member is in the limiting position, the front protrusion of the resisting portion is restricted in the hollow body of the limiting member, and after the pushing member is pressed, the limit
  • the positional member moves rearwardly with the pushing portion, so that the limiting member is disengaged from the resisting portion and moved to the disengaged position, so that the blade carrier can move.
  • the limiting portion or the protruding portion of the limiting member can be respectively moved to the two ends of the resisting portion, so that the blade bearing member can not move in the direction of the limit position, but can only move in the opposite direction. So that the blade does not inadvertently come out for safety purposes.
  • the limiting member can limit the abutting portion so that the blade carrier cannot move, and when the pushing member drives the limiting member out of the limiting position, the blade carrier can move to push out the blade.
  • the blade by providing movable members that can be respectively moved to the ends of the housing, the blade can be protected from the housing on the side of the movable member for safety purposes.
  • FIG. 1 is an external view of a utility knife having a double blade of the present invention.
  • FIG. 2 is an exploded view of a utility knife having a double blade of the present invention.
  • FIG 3 is a front elevational view of the blade carrier of the utility knife having a double blade of the present invention.
  • FIG. 4 is a perspective view of a limit member of the utility knife having a double blade according to the present invention.
  • Figure 5 is a perspective view of the other direction of the limit member of the utility knife having the double blade of the present invention.
  • Fig. 6 is a perspective view showing the combination of the triggering member and the limiting member of the utility knife having the double blade of the present invention.
  • Figure 7 is a front elevational view of the utility knife of the present invention having a double blade.
  • Figure 8 is a cross-sectional view of the utility knife of Figure 7 in the direction of A-A of the utility model having a double blade.
  • Figure 9 is a cross-sectional view of the utility knife of Figure 7 with a double blade in the direction of B-B of the present invention.
  • Figure 10 is a schematic view of the limiting member in the second embodiment of the utility knife having the double blade of the present invention.
  • Figure 11 is a schematic view of the limiting member of the third embodiment of the utility knife having the double blade of the present invention.
  • Fig. 12 is an external view of a fourth embodiment of the utility knife having a double blade according to the present invention.
  • Figure 13 is a perspective view of the movable member of Embodiment 4 of the utility knife having a double blade according to the present invention.
  • Fig. 14 is a perspective view showing the structure and the elastic structure of the fourth embodiment of the utility knife having the double blade of the present invention.
  • Figure 15 is an exploded view of Embodiment 4 of the utility knife having a double blade of the present invention.
  • Figure 16 is a front elevational view of Embodiment 4 of the utility knife having a double blade of the present invention.
  • Figure 17 is a side cross-sectional view of Embodiment 4 of the utility knife having a double blade of the present invention.
  • Figure 18 is a transverse cross-sectional view of Embodiment 4 of the utility knife having a double blade of the present invention.
  • Figure 19 is a cross-sectional view of a fourth embodiment of the utility knife having a double blade of the present invention.
  • Figure 20 is an external view of a fifth embodiment of the utility knife having a double blade according to the present invention.
  • Figure 21 is a first exploded view of Embodiment 5 of the utility knife having a double blade of the present invention.
  • Figure 22 is a second exploded view of the fifth embodiment of the utility knife having a double blade of the present invention.
  • Figure 23 is a schematic view of the elastomer of Example 5 of the utility knife having a double blade of the present invention.
  • Figure 24 is an external view of a sixth embodiment of the utility knife having a double blade according to the present invention.
  • Figure 25 is an exploded view of Embodiment 6 of the utility knife having a double blade of the present invention.
  • Figure 26 is an external view of Embodiment 7 of the utility knife having a double blade of the present invention.
  • Figure 27 is an exploded view of Embodiment 7 of the utility knife having a double blade of the present invention.
  • Figure 28 is an external view of Embodiment 8 of the utility knife having a double blade of the present invention.
  • Figure 29 is a perspective view showing the rotation of the embodiment 8 of the utility model having a double blade of the present invention.
  • Figure 30 is a schematic view showing the internal structure of a ninth embodiment of the utility model having a double blade.
  • Figure 31 is an external view of a tenth embodiment of a utility knife having a double blade according to the present invention.
  • Figure 32 is an exploded view of Embodiment 10 of the utility knife having a double blade of the present invention.
  • a utility knife having a double blade includes a housing 100 having an opening at both ends, and a blade carrier 110 mounted in the housing and movable within the housing is disposed outside the housing and a moving component 120 connected to the blade carrier for driving the blade carrier toward the two ends of the casing, wherein the blade carrier is provided with a resisting portion 111, and the utility model has a double
  • the utility knife of the blade further includes a limiting member 130, wherein the limiting member has a limiting portion 131, and the limiting portion can change the relative position of the resisting portion 111, thereby enabling the blade carrier 110 to move toward the user's desired.
  • the blade carrier 110 can only move toward the first direction.
  • the blade carrier 110 only It can move in a second direction opposite to the first direction, so the moving direction is a single direction.
  • the limiting member 130 is disposed at an intermediate position of the blade carrier 110.
  • the limiting portion 131 of the limiting member 130 can respectively change the position between the first side of the resisting portion and the second side opposite to the first side.
  • the blade carrier 110 can only move toward the other side of the limiting portion 111, that is, the second side.
  • the blade carrier 110 can only be the first to the resisting portion 111.
  • the utility model of the utility model further comprises a triggering member 140 which is arranged on the outer side of the housing and is connected to the limiting member. The triggering member 140 can drive the limiting member 130 to move, so that the limiting portion 131 can be in the resisting portion 111. The position is changed between the first position and the second position of the side.
  • the limiting member 130 includes an annular body having a cutout 132 on the side thereof.
  • the sidewall opposite to the cutout on the annular body is a limiting portion 131.
  • the width of the cutout 132 is greater than the width of the resisting portion 111, and the resisting portion can pass through. The gap enters the interior of the annular body.
  • the abutting portion 111 is specifically a forwardly convex portion at a central position of the blade carrier.
  • the annular body may be a toroidal cylindrical body, a rectangular annular body, or any other annular shape.
  • the projections are cylindrical, elongated or otherwise shaped to achieve the same purpose.
  • the convex portion when the convex portion is cylindrical, the cylindrical convex portion can enter the inside of the circular cylindrical body through the slit 132, and is blocked by the limiting portion 131 on the opposite side of the slit in the circular cylindrical body. internal.
  • the convex portion may also be a rectangular convex portion as long as the convex portion can enter the inside of the annular body from the slit and can be blocked by the limiting portion.
  • the limiting member 130 has a connecting portion 133 extending outwardly from one end of the annular body and connected to the triggering member 140 on the outer side of the housing.
  • the triggering member 140 can rotate the annular body, so that the limiting portion 131 of the limiting member 130 can be They are respectively moved to the two sides of the resisting portion 111.
  • the outer surface of the connecting portion has a spaced flange 134, and the inner portion of the trigger member has a corresponding recess 141, so that the connecting portion 134 of the triggering member 140 and the limiting member 130 can cooperate to perform a rotary motion.
  • the connecting portion may also be disposed in a rectangular shape, and the trigger member is internally disposed in a corresponding shape, so that the connecting portion of the triggering member and the limiting member can be engaged to perform a rotary motion.
  • the outer part of the triggering member is arranged as a circular cover body, and the outer part of the cover body has a texture to facilitate the rotation of the cover body of the hand-held triggering member, thereby driving the limiting member to rotate.
  • the triggering member further comprises a connecting member 142.
  • the connecting member can be a screw having a connecting portion of the rod portion and the rod portion, a head portion larger than the cross section of the rod portion, a through hole in the center of the lid body, and the rod portion of the screw rod can be Through this through hole, the head is restricted to the outside of the through hole of the cover.
  • the connecting portion 133 further has a connecting hole 135 therein, and the inside can accommodate the screw and cooperate with the screw to fix the triggering member and the limiting member to each other.
  • the outer portion of the screw has an external thread
  • the inside of the connecting hole has an internal thread matched with the external thread of the screw, so that the trigger member and the limiting member are relatively fixed.
  • the further trigger member also has a direction of movement indicator 143 indicating the direction in which the blade carrier can move, or the blade or tool in which the direction of motion can extend out of the side.
  • the housing includes an upper housing 101 and a lower housing 102.
  • the two housings are connected by fasteners, and the blade carrier is movably mounted on the housing.
  • a rail is disposed in the housing, and the blade carrier is disposed on the rail and movable along the rail.
  • the housing includes a first rail 103 and a second rail 104, which are strip-shaped protrusions disposed on two sides of the housing, and the blade carrier has a first groove for accommodating the strip-shaped protrusion at a position of the corresponding strip-shaped protrusion 112 and the second recess 113, thereby enabling the blade carrier to move left and right along the strip projection.
  • the moving component 120 is coupled to the blade carrier 110, and includes a manual portion 121 and a connecting body 122 connected to the manual portion.
  • the manual portion is disposed outside the housing for convenient hand pushing, and the connecting body 122 is coupled to the blade carrier 110 to drive the blade.
  • the carrier moves.
  • the top of the manual portion has a grain, which increases the friction of the contact and facilitates hand pushing.
  • the connector extends downward from the manual portion, and the blade carrier has a corresponding recess in the corresponding position to cooperate with the blade carrier to fix the connector to the blade carrier, so that the manual portion can drive the blade carrier to move.
  • the blade carrier includes a first positioning unit 114 and a second positioning unit 115 which are respectively disposed at two ends of the blade carrier, a first blade is mounted on the first mounting unit, and a second blade is mounted on the second mounting unit.
  • the first seating unit has an upper elastic piece 116 and a lower protruding blocking portion 117.
  • the upper elastic piece fixes the upper portion of the blade, and the lower retaining member can limit the blade edge portion.
  • the upper elastic piece is provided with a card edge, and the blade is provided with a bayonet corresponding to the card edge, so that the upper part of the blade can be fixed.
  • the second placement unit may have the same settings, or other tools may be placed to provide different configurations.
  • the blade carrier further includes a first unlocking member 118 and a second unlocking member 119 disposed at the first seating unit and the second seating unit, respectively.
  • the first unlocking member has a pressing portion 1191 and a convex structure 1192 connected to the pressing portion.
  • the protruding structure can press the elastic piece, and the blade can be released from the card edge of the elastic piece, so that the blade can be Replace it for use.
  • the housing has a channel 105 on which the moving assembly is movable to move the blade carrier.
  • the housing further includes a first limiting unit 106, and a second limiting unit 107, respectively fixed to the housing, and disposed at corresponding positions of the first mounting unit and the second mounting unit.
  • the first limiting unit and the second limiting unit are respectively disposed at the front and the rear of the housing, and both have upwardly extending hooks 1061 and 1071 for limiting the continued movement of the blade carrier.
  • the first blade and the second blade mounted on the blade carrier are received within the housing.
  • the first blade and the second blade may be the same, or may be other tools such as different blades or scissors to meet different needs.
  • the housing further has a first slot 1081, a second slot 108 and a third slot 1082, respectively corresponding to the moving component in the first position, that is, the corresponding moving component position when the first blade protrudes from the first port of the housing
  • the moving assembly is in an intermediate position, i.e., both the first blade and the second blade are within the housing, and the moving assembly is in the second position, i.e., the corresponding moving component position when the second blade extends from the second port of the housing.
  • the bottom of the extension of the moving component is further provided with a hole, and a spring 124 is disposed in the hole. In use, the spring cooperates with the blade carrier to enable the moving component to move up and down.
  • the moving assembly includes a manual portion and an extension connected to the manual portion, the extension portion is coupled to the blade carrier, and the extension portion further has a lateral shoulder 123.
  • the protrusion of the extension portion can be respectively carded
  • the first groove, the second groove and the third groove are provided to temporarily fix the function.
  • a utility knife having a double blade includes a housing having an opening at both ends, a blade carrier mounted in the housing and movable within the housing, disposed outside the housing and with the blade a moving component connected to the carrier for driving the blade carrier to move toward the two ends of the casing, wherein the blade carrier is provided with a resisting portion, and the utility model has a double blade utility knife
  • the utility model further includes a limiting member, wherein the limiting member has a limiting portion, and the limiting portion can change the relative position of the resisting portion, so that the blade carrier can move in a direction desired by the user.
  • the blade carrier When the limiting portion is in the first position relative to the resisting portion, the blade carrier can only move toward the first direction, and when the limiting portion is in the second position relative to the resisting portion, the blade carrier can only face and be the first
  • the second direction is opposite in direction, so the direction of movement is a single direction.
  • the limit member is disposed at an intermediate position of the blade carrier.
  • the limiting portion of the limiting member can respectively change the position between the first side of the resisting portion and the second side opposite to the first side.
  • the blade carrier can only be limited.
  • the other side of the seat that is, the second side, moves, and when the limiting portion is on the second side of the abutting portion, the blade carrier can only move toward the first side of the abutting portion.
  • the utility model of the utility model further comprises a triggering member arranged on the outer side of the housing connected to the limiting member, and the triggering member can drive the limiting member to move, so that the limiting portion can be in the first position on both sides of the resisting portion The position is changed between the second position and the second position.
  • the limiting member 130a includes a protrusion 131a that can block the abutting portion of the blade carrier.
  • the blade carrier can only move toward the other side of the resisting portion, that is, the second side.
  • the blade carrier only It can move in the direction of the first side of the resisting portion.
  • the abutting portion is specifically a forwardly convex projection at a central position of the blade carrier.
  • the projections are cylindrical, elongated or otherwise shaped to achieve the same purpose.
  • the limiting member has a connecting portion extending outward from one end of the protruding block and connected to the triggering member on the outer side of the housing, wherein the triggering member can be rotated by the protruding block, so that the protruding block can be respectively moved to the resisting portion side.
  • the outer surface of the connecting portion has a spaced flange, and the inner portion of the triggering member has a corresponding recess, so that the connecting portion of the triggering member and the limiting member can cooperate to perform a rotary motion.
  • the connecting portion may also be disposed in a rectangular shape, and the trigger member is internally disposed in a corresponding shape, so that the connecting portion of the triggering member and the limiting member can be engaged to perform a rotary motion.
  • the outer part of the triggering member is arranged as a circular cover body, and the outer part of the cover body has a texture to facilitate the rotation of the cover body of the hand-held triggering member, thereby driving the limiting member to rotate.
  • the triggering member further comprises a connecting member
  • the connecting member comprises a screw having a connecting portion of the rod portion and the rod portion, the head portion having a larger cross section than the rod portion, a through hole in the center of the cover body, and the rod portion of the screw can pass through This through hole, the head is limited to the outside of the through hole of the cover.
  • the connecting portion further has a connecting hole therein, and the inside can accommodate the screw and cooperate with the screw to fix the triggering member and the limiting member to each other.
  • the outer portion of the screw has an external thread
  • the inside of the connecting hole has an internal thread matched with the external thread of the screw, so that the trigger member and the limiting member are relatively fixed.
  • the further trigger member also has a direction of movement indication indicating that the direction of motion can extend the blade or tool on that side.
  • FIG. 1 A utility knife having a double blade, comprising a housing having an opening at both ends, a blade carrier 110 mounted in the housing and movable within the housing, a moving assembly disposed outside the housing and coupled to the blade carrier
  • the blade carrier 110 is disposed with a resisting portion 111, and further includes a limiting member 130b, wherein the limiting member can be changed and configured to move the blade carrier toward the two ends of the housing.
  • the relative position of the resisting portion when the limiting member is in the first position, that is, the limiting position, the limiting member can limit the resisting portion so that the blade carrier cannot move, and when the limiting member is in the second position, the leaving When the position is limited, the limiting member does not limit the abutting portion, so that the blade carrier can move.
  • the utility model of the utility model further comprises a triggering member arranged on the outer side of the housing connected to the limiting member, and the triggering member can drive the limiting member to move, so that the limiting portion can be in the first position on both sides of the resisting portion The position is changed between the second position and the second position.
  • the abutting portion is specifically a lord in a central position of the blade carrier.
  • the limiting member is a hollow body, such as a hollow cylinder or other hollow shape.
  • the trigger member is a pushing element connected to the limiting member, and can push the limiting member to move forward and backward.
  • the limiting member is in the first position, that is, the limiting position, the front convex portion of the resisting portion is restrained in the hollow cylinder of the limiting member, and the protruding blade cannot be moved.
  • the limiting member After the pushing element is pressed, the limiting member simultaneously moves backward with the pushing portion, so that the limiting member is disengaged from the resisting portion and moved to the second position, that is, the position of the blade is released, so that the blade carrier can move to the housing.
  • the blade is pushed out at either end.
  • a utility knife having a double blade includes a housing 100 having a first end and a second end for respectively carrying two blades at both ends of the blade carrier a member 110 mounted in the housing and movable within the housing to enable the blade to protrude from either of the first end and the second end of the housing; and the movable member 150 Moving to the other end opposite the either end of the first or second end, thereby blocking the blade from projecting at the opposite end of either of the first or second ends.
  • One end of the movable member is axially connected to the intermediate portion of the housing, and the other end is rotatable about the shaft so as to be respectively movable to both ends of the housing, the first end or the second end.
  • the utility model of the embodiment has a double blade utility knife, further comprising a moving component 120 disposed outside the casing and connected to the blade carrier for driving the blade carrier toward the first end or the second end of the casing respectively Directional movement.
  • the housing 100 includes an upper housing 101 on the upper side and a lower housing 102 on the lower side.
  • the movable member 150 includes a first movable member 151 and a second movable member 152 respectively located at two sides of the housing 100.
  • the first movable member 151 is connected to the upper casing 101 through the first shaft 18, and the second movable member passes through the second shaft 19 and the lower casing 102.
  • the first shaft and the second shaft may be two parts at both ends of the integral shaft, or two separate shafts at two ends of one axis, so that the movable member can rotate around the housing and can respectively move to the two ends of the housing, One end or second end.
  • the first shaft and the second shaft are specifically the cutter head nails as shown in the figure, the first movable member and the second movable member, the upper casing and the lower casing have through holes, and the first shaft is like a cutter head.
  • the nail connects the first movable member and the upper housing shaft through the handle hole 158 on the first movable member and the housing hole 159 on the upper housing, and the second shaft passes through the through holes in the second movable member and the lower housing
  • the second movable member is coupled to the lower housing shaft.
  • the movable member 150 further includes a through hole 153 at an end of the movable member near the shaft and a button 154 located in the through hole, such as a first movable member, wherein in the embodiment, the through hole is illustrated In the shape of a dome or a circle, or any other shape.
  • the movable member 150 further includes an elastic member 155 connected to the rear of the button, so that when the button is pressed, the button can be pushed out of the through hole of the movable member and moved outside the inner side of the movable member.
  • the button is located inside the through hole, and the movable member cannot move; when the button is pressed, the button is pushed out of the through hole of the movable member, so that the movable member can move around the axis and can move to the two of the housing respectively. side.
  • the upper housing has a button hole 156 at a position corresponding to the button, and when the button is pressed, the button can be accommodated therein so as not to block the movement of the movable member 150 about the axis.
  • the elastic member 155 is engaged with the blade carrier through the button hole 156 of the upper casing, and when the button is released, the elastic member such as a spring bounces the button back to the inside of the through hole 153 in the first movable member, thereby Block the moving parts to continue the movement and fix the moving parts.
  • a groove 157 is disposed at a position corresponding to the button hole of the upper casing, and the groove 157 cooperates with the button 154 and the elastic member 155 such as a spring, only when the blade
  • the elastic member can engage the groove through the button hole, so that the elastic member can be compressed in the groove.
  • the button can further enter the button hole 156 of the upper casing, so that the movable member can rotate around the axis, and at the same time, when the button is pressed, the blade is fixed with the elastic member, so that the blade is fixed.
  • the carrier cannot move, that is, the effect is that when the movable member can move, the blade carrier 110 cannot move left and right, so that the utility knife with double blades of the utility model is very safe to use; when the blade carrier is located on both sides
  • the position that is, when the blade is extended, since the groove is not in the middle position of the casing, the button cannot be pressed, so that the movable member cannot move.
  • the utility knife with double blades of the present invention further includes a rotating member 180 between the housing and the blade carrier, and is connected with the first shaft or the second shaft of the movable member, such as being connected to the first shaft, Rotating with the rotation of the movable member, the rotating member has a blocking portion 181 at a side of one end of the rotating member, and the blocking portion is rotated when the movable member is rotated to one end of the housing The piece rotates along a first axis of the movable member to a side close to the movable member, thereby blocking movement of the blade carrier toward an end having the movable member.
  • the blocking portion on the rotating member blocks the blade carrier, preventing the blade carrier from moving to the side of the movable member, so that the blade on the side of the movable member does not come out.
  • a forward convex portion 182 is disposed at an intermediate position of the blade carrier, and the blocking portion 181 is in a movable member direction of the convex portion 182 when the movable member is rotated to one end of the housing. One side, such that the blocking portion can block the convex portion on the blade carrier from moving toward an end having the movable member.
  • the two rotating members 180 may be two rotating members 180, which are respectively disposed on two sides of the blade carrier, and the blade carrier is respectively provided with convex portions on both sides, and the rotating members disposed on both sides of the blade carrier can respectively form interference.
  • the two rotating members are respectively coupled to the first shaft and the second shaft, and rotate with the rotation of the first shaft and the second shaft, thereby changing the opposing direction of the blocking portion on the rotating member and the convex portion on the blade carrier.
  • the other ends of the two rotating members respectively have connecting bodies respectively connected to the inward end of the bit nail as the first shaft or the second shaft, so that the rotating member can rotate with the shaft.
  • the connection body has a connection hole that can be received at one end of the head nail to form a connection.
  • the movable members composed of the first movable member and the second movable member are respectively adapted to the sizes of the left and right portions of the housing, and the left and right portions of the housing are respectively accommodated between the first movable member and the second movable member.
  • the first movable member and the second movable member of the movable member are connected to the housing through a shaft at one end, and the first movable member and the second movable member are fixed to each other by the pin 161 at the other end.
  • the movable member tail portion is provided with a structural body 191 and an elastic structure 192 connected to the structural body, wherein the structural body 191 has a pin hole 193 at the center, and the pin 161 passes through the pin hole 193 and the movable member
  • the first movable member is connected to the second movable member.
  • the structural body 191 is fixedly connected to the first movable member and the second movable member by two screws on both sides of the pin hole 193 at the center position, thereby fixedly connecting the structural body and the movable member.
  • the elastic structure 192 is fixedly connected to the intermediate position of the structural body 191 or extends integrally.
  • the elastic structure 192 includes two fins 196 and 197 extending from the intermediate position to the two sides and protruding inward at the end, and may be hook-shaped.
  • the flap of the elastic structure bounces and is pressed, so that the housing can be fixed in the movable member to prevent the movable member from fluctuating up and down.
  • the first movable member and the second movable member are further provided with a rib 195 which can cooperate with the housing 100 to prevent the movable member 150 from fluctuating up and down.
  • the housing includes an upper housing 101 and a lower housing 102.
  • the two housings are connected by fasteners, and the blade carrier is movably mounted on the housing.
  • a rail is disposed in the housing, and the blade carrier is disposed on the rail and movable along the rail.
  • the housing includes a first rail 103 and a second rail 104, which are strip-shaped protrusions disposed on two sides of the housing, and the blade carrier has a first groove for accommodating the strip-shaped protrusion at a position of the corresponding strip-shaped protrusion 112 and the second recess 113, thereby enabling the blade carrier to move left and right along the strip projection.
  • the moving component 120 is coupled to the blade carrier 110, and includes a manual portion 121 and a connecting body 122 connected to the manual portion.
  • the manual portion is disposed outside the housing for convenient hand pushing, and the connecting body 122 is coupled to the blade carrier 110 to drive the blade.
  • the carrier moves.
  • the top of the manual portion has a grain, which increases the friction of the contact and facilitates hand pushing.
  • the connector extends downward from the manual portion, and the blade carrier has a corresponding recess in the corresponding position to cooperate with the blade carrier to fix the connector to the blade carrier, so that the manual portion can drive the blade carrier to move.
  • the blade carrier includes a first positioning unit 114 and a second positioning unit 115 which are respectively disposed at two ends of the blade carrier, a first blade is mounted on the first mounting unit, and a second blade is mounted on the second mounting unit.
  • the first seating unit has an upper elastic piece 116 and a lower protruding blocking portion 117.
  • the upper elastic piece fixes the upper portion of the blade, and the lower retaining member can limit the blade edge portion.
  • the upper elastic piece is provided with a card edge, and the blade is provided with a bayonet corresponding to the card edge, so that the upper part of the blade can be fixed.
  • the second placement unit may have the same settings, or other tools may be placed to provide different configurations.
  • the blade carrier further includes a first unlocking member 118 and a second unlocking member 119 disposed at the first seating unit and the second seating unit, respectively.
  • the first unlocking member has a pressing portion 1191 and a convex structure 1192 connected to the pressing portion.
  • the protruding structure can press the elastic piece, and the blade can be released from the card edge of the elastic piece, so that the blade can be Replace it for use.
  • the housing has a channel 105 on which the moving assembly is movable to move the blade carrier.
  • the housing further includes a first limiting unit 106, and a second limiting unit 107, respectively fixed to the housing, and disposed at corresponding positions of the first mounting unit and the second mounting unit.
  • the first limiting unit and the second limiting unit are respectively disposed at the front and the rear of the housing, and both have upwardly extending hooks 1061 and 1071 for limiting the continued movement of the blade carrier.
  • the first blade and the second blade mounted on the blade carrier are received within the housing.
  • the first blade and the second blade may be the same, or may be other tools such as different blades or scissors to meet different needs.
  • the housing further has a first slot 1081, a second slot 108 and a third slot 1082, respectively corresponding to the moving component in the first position, that is, the corresponding moving component position when the first blade protrudes from the first port of the housing
  • the moving assembly is in an intermediate position, i.e., both the first blade and the second blade are within the housing, and the moving assembly is in the second position, i.e., the corresponding moving component position when the second blade extends from the second port of the housing.
  • the bottom of the extension of the moving component is further provided with a hole, and a spring 124 is disposed in the hole. In use, the spring cooperates with the blade carrier to enable the moving component to move up and down.
  • the moving assembly includes a manual portion and an extension connected to the manual portion, the extension portion is coupled to the blade carrier, and the extension portion further has a lateral shoulder 123.
  • the protrusion of the extension portion can be respectively carded
  • the first groove, the second groove and the third groove are provided to temporarily fix the function.
  • Embodiment 1 may be the same as Embodiment 1, and may be other arrangements.
  • a utility knife having a dual blade includes a housing 100 having a first end and a second end for respectively carrying two blades at both ends of the blade carrier a member 110 mounted in the housing and movable within the housing to enable the blade to protrude from either of the first end and the second end of the housing; and the movable member 150 Moving to the other end opposite the either end of the first or second end, thereby blocking the blade from projecting at the opposite end of either of the first or second ends.
  • One end of the movable member is axially coupled to the intermediate portion of the housing, and the other end is rotatable about the shaft so as to be movable to the first end and the second end of the housing, respectively.
  • the utility model of the embodiment has a double blade utility knife, further comprising a moving component 120 disposed outside the casing and connected to the blade carrier for driving the blade carrier toward the first end or the second end of the casing respectively Directional movement.
  • the housing 100 includes an upper housing 101 on the upper side and a lower housing 102 on the lower side.
  • the movable member 150 includes a first movable member 151 and a second movable member 152 respectively located at two sides of the housing 100.
  • the first movable member 151 is connected to the upper casing 101 through the first shaft 18, and the second movable member passes through the second shaft 19 and the lower casing 102.
  • the first shaft and the second shaft may be two parts at both ends of the integral shaft, or two separate shafts at two ends of one axis, so that the movable member can rotate around the housing and can respectively move to the two ends of the housing, One end or second end.
  • the first shaft and the second shaft are specifically the cutter head nails as shown in the figure, the first movable member and the second movable member, the upper casing and the lower casing have through holes, and the first shaft is like a cutter head.
  • the nail connects the first movable member and the upper housing shaft through the handle hole 158 on the first movable member and the housing hole 159 on the upper housing, and the second shaft passes through the housing hole on the second movable member and the lower housing The second movable member and the lower housing shaft are coupled.
  • the movable member 150 further includes a through hole located at an end of the movable member near the housing and a button located in the through hole.
  • the through hole is a rectangle in the figure, and may also be a dome. Shape or circle or other shape.
  • the movable member 150 further includes an elastic body 155' connected to the rear of the button, so that when the button is pressed, the button can be pushed out of the through hole of the movable member and moved outside the inner side of the movable member.
  • the button is located inside the through hole, and the movable member cannot move; when the button is pressed, the button is pushed out of the through hole of the movable member, so that the movable member can move around the axis and can move to the two of the housing respectively. side.
  • the first movable member and the second movable member of the movable member respectively have a first through hole 153a, a first button 154a and a second through hole 153b, and a second button 154b at positions close to the end.
  • the first button is located in the first through hole
  • the second button is located in the second through hole.
  • the first button and the second button are connected by an elastic body 155' or may be integrally formed with the elastic body.
  • the elastic body is capable of supporting the first button and the second button while being compressed to the inside of the first movable member and the second movable member.
  • the elastomer is connected in the first button and the second button in a curved shape so as to be compressible. Specifically, it may be an S-shaped, mountain-shaped or the like.
  • the elastic body includes a first portion 155a, a second portion 155b and a third portion 155c, and the first portion and the third portion respectively correspond to the first button and the second button Connected, a gap is formed in the middle, and extends to one side, and the second portion is located between the first portion and the third portion, respectively connected to the first portion and the third portion, above the gap, and the opposite side extends.
  • the elastomer is positioned outside the end of the housing and does not interfere with the housing. It is also possible to open the housing and the blade carrier to leave room for the elastomer.
  • the material of the elastomer can be plastic, plastic, resin, and the like.
  • the utility knife with double blades of the present invention further includes a rotating member 180 between the housing and the blade carrier, and is connected with the first shaft or the second shaft of the movable member, such as being connected to the first shaft, Rotating with the rotation of the movable member, the rotating member has a blocking portion 181 at one side of the rotating member, and the blocking portion is at the rotating member when the movable member is rotated to one end of the housing The first shaft of the movable member is rotated to a side close to the movable member, thereby blocking movement of the blade carrier toward an end having the movable member.
  • the blocking portion on the rotating member blocks the blade carrier, preventing the blade carrier from moving to the side of the movable member, so that the blade on the side of the movable member does not come out.
  • a forward convex portion 182 is disposed at an intermediate position of the blade carrier, and the blocking portion 181 is in a movable member direction of the convex portion 182 when the movable member is rotated to one end of the housing. One side, such that the blocking portion can block the convex portion on the blade carrier from moving toward an end having the movable member.
  • the blade carrier is respectively provided with convex portions on both sides, and the rotating members disposed on both sides of the blade carrier can respectively form interference.
  • the two rotating members are respectively coupled to the first shaft and the second shaft, and rotate with the rotation of the first shaft and the second shaft, thereby changing the opposing direction of the blocking portion on the rotating member and the convex portion on the blade carrier.
  • the other ends of the two rotating members respectively have connecting bodies 183 which are respectively connected to the inward ends of the bit nails as the first shaft or the second shaft, so that the rotating member can rotate with the shaft.
  • the connection body has a connection hole that can be received at one end of the head nail to form a connection.
  • the utility knife having the double blade of the present invention includes a first rotating member 180a and a second rotating member 180b respectively located at two sides of the blade carrier, respectively connected to the first shaft and the second shaft.
  • the two rotating members have the same structural features and functions as described above.
  • the housing bores 159 also have elongated slots on either side thereof to allow the blade carrier to move freely relative to the housing with the moving assembly without interfering with the connection of the first or second shaft to the blade carrier.
  • the movable member tail portion is provided with a structural body 191a, wherein the structural body 191a has a pin hole 193 at the center, and the pin 161 passes through the pin hole 193 to connect with the first movable member and the second movable member of the movable member.
  • the structure body 191 is fixedly connected to the first movable member and the second movable member at the side of the pin hole 193, thereby fixedly connecting the structural body and the movable member.
  • the structures have inwardly directed projections at the upper and lower portions, designated 194 and 195, respectively, which can confine the housing within the movable member to prevent the movable member from fluctuating up and down.
  • the inwardly facing side of the rib also has a groove 196 that can receive a portion of the elastomer without blocking the elastomer.
  • the utility model also comprises a gasket between the rotating member and the casing, and a protective layer on the casing and the movable member.
  • a gasket between the rotating member and the casing, and a protective layer on the casing and the movable member.
  • between the first rotating member and the first housing is a first washer 184, and between the second rotating member and the second housing is a second washer 185; between the first housing and the first movable member
  • a protective layer 1011 has a second protective layer 1021 between the second housing and the second movable member.
  • the first protective layer and the second protective layer respectively have holes at positions of the first axis and the second axis, so that the first axis and the second axis can pass respectively without affecting the function of the present invention.
  • Embodiment 1 and Embodiment 4 or other embodiments which may be the same as or different from Embodiment 1 and Embodiment 4 or other embodiments, and are within the protection scope of the present invention.
  • a utility knife having a double blade including a housing 100 having a first end 1 and a second end 2 for carrying two blades respectively a blade carrier of the end mounted within the housing and movable within the housing to enable the blade to extend from either of the first end and the second end of the housing; and the movable member 150 Moving for moving to the opposite end of either of the first end or the second end such that the blocking blade projects at the opposite end of either of the first end or the second end.
  • the movable member includes a sheath 150a for covering at an edge of the first end or the second end.
  • the utility model of the utility model has a double blade, the first blade 3 and the second blade 4 respectively mounted on the two ends of the blade carrier, respectively extending from the first end and the second end of the housing, respectively
  • One blade 3 and the second blade 4 may be the same or different, and the other portions are the same as those of Embodiment 4 or Embodiment 5.
  • a utility knife having a double blade including a housing 100 having a first end 1 and a second end 2 for respectively carrying two blades in two a blade carrier of the end mounted within the housing and movable within the housing to enable the blade to extend from either of the first end and the second end of the housing; and the movable member 150 Moving for moving to the opposite end of either of the first end or the second end such that the blocking blade projects at the opposite end of either of the first end or the second end.
  • the movable member 150b is translatably mounted on the housing for moving along the housing to the first end or the second end, respectively, and the movable member has movable guards on both sides thereof, respectively for the first gear The outer edge of the end and the second end.
  • the guard is foldably connected to one end edge of the movable member.
  • the utility model of the utility model has a double blade, the first blade 3 and the second blade 4 respectively mounted on the two ends of the blade carrier, respectively extending from the first end and the second end of the housing, respectively
  • One blade 3 and the second blade 4 may be the same or different, and the other portions are the same as those of Embodiment 4 or Embodiment 5.
  • a utility knife having a double blade comprising a housing 100 having a first end 1 and a second end 2 for carrying two blades 3, respectively 4 a blade carrier at both ends, mounted within the housing and movable within the housing to enable the blade to protrude from either of the first end and the second end of the housing; and a movable member for movably moving to the opposite end of either one of the first end or the second end, thereby blocking the blade from extending at the opposite end of either of the first end or the second end .
  • One end of the movable member 150c is connected with the intermediate portion on the casing, and the other end can be respectively moved to the first end or the second end of the casing, and the other end of the movable member is connected to the guard for the gear Said first end or second end.
  • One end of the movable member is connected to the intermediate portion on the housing through the hinge shaft 91, so that the other end of the movable member can be respectively turned to the both sides of the housing, such as the two portions of the hinge.
  • the middle portion of the housing has a first connecting body that protrudes outwardly through the through hole, and the movable member is located at two sides of the first connecting body, and also has a second connecting body that penetrates the through hole in a lateral direction.
  • a through hole 91 is formed through the through hole of the first connecting body and the second connecting body so that the movable member is movably connected to the middle portion of the housing.
  • the other end of the movable member is coupled to the guard 92 for the outer edge of the first end and the second end.
  • the intermediate position of the guard is connected such that when the movable member 150c is respectively turned over to the first end and the second end of the housing, the portions at both ends of the intermediate position can be used to block the first end and the second end of the housing, respectively. .
  • the utility model of the utility model has a double blade, the first blade 3 and the second blade 4 respectively mounted on the two ends of the blade carrier, respectively extending from the first end and the second end of the housing, respectively
  • One blade 3 and the second blade 4 may be the same or different, and the other portions are the same as those of Embodiment 4 or Embodiment 5.
  • a utility knife having a dual blade includes a housing 100 having a first end and a second end for respectively carrying two blades in two a blade carrier 110 at the end, mounted within the housing and movable within the housing to enable the blade to protrude from either of the first end and the second end of the housing; and a movable member 150 for movably moving to the opposite end of either of the first end or the second end such that the blocking blade projects at the opposite end of either of the first end or the second end.
  • One end of the movable member is axially coupled to the intermediate portion of the housing, and the other end is rotatable about the shaft so as to be movable to the first end and the second end of the housing, respectively.
  • the utility model of the embodiment has a double blade utility knife, further comprising a moving component 120 disposed outside the casing and connected to the blade carrier for driving the blade carrier toward the first end or the second end of the casing respectively Directional movement.
  • the housing 100 includes an upper housing 101 on the upper side and a lower housing 102 on the lower side.
  • the movable member 150 includes a first movable member 151 and a second movable member 152 respectively located at two sides of the housing 100.
  • the first movable member 151 is connected to the upper casing 101 through the first shaft 18, and the second movable member passes through the second shaft 19 and the lower casing 102.
  • the first shaft and the second shaft may be two parts at both ends of the integral shaft, or two separate shafts at two ends of one axis, so that the movable member can rotate around the housing and can respectively move to the two ends of the housing, One end or second end.
  • the first shaft and the second shaft are specifically the cutter head nails as shown in the figure, the first movable member and the second movable member, the upper casing and the lower casing have through holes, and the first shaft is like a cutter head.
  • the nail connects the first movable member and the upper housing shaft through the handle hole 158 on the first movable member and the housing hole 159 on the upper housing, and the second shaft passes through the housing hole on the second movable member and the lower housing The second movable member and the lower housing shaft are coupled.
  • the movable member 150 further includes a through hole located at an end of the movable member near the housing and a button located in the through hole.
  • the through hole is a rectangle in the figure, and may also be a dome. Shape or circle or other shape.
  • the movable member 150 further includes an elastic body 155' connected to the rear of the button, so that when the button is pressed, the button can be pushed out of the through hole of the movable member and moved outside the inner side of the movable member.
  • the button is located inside the through hole, and the movable member cannot move; when the button is pressed, the button is pushed out of the through hole of the movable member, so that the movable member can move around the axis and can move to the two of the housing respectively. side.
  • the first movable member and the second movable member of the movable member respectively have a first through hole 153a, a first button 154a and a second through hole 153b, and a second button 154b at positions close to the end.
  • the first button is located in the first through hole
  • the second button is located in the second through hole.
  • the first button and the second button are connected by an elastic body 155' or may be integrally formed with the elastic body.
  • the elastic body is capable of supporting the first button and the second button while being compressed to the inside of the first movable member and the second movable member.
  • the elastomer is connected in the first button and the second button in a curved shape so as to be compressible. Specifically, it may be an S-shaped, mountain-shaped or the like.
  • the elastic body includes a first portion 155a, a second portion 155b and a third portion 155c, and the first portion and the third portion respectively correspond to the first button and the second button Connected, a gap is formed in the middle, and extends to one side, and the second portion is located between the first portion and the third portion, respectively connected to the first portion and the third portion, above the gap, and the opposite side extends.
  • the elastomer is positioned outside the end of the housing and does not interfere with the housing. It is also possible to open the housing and the blade carrier to leave room for the elastomer.
  • the material of the elastomer can be plastic, plastic, resin, and the like.
  • the utility knife with double blades of the present invention further includes an element 180' coupled to the first shaft or the second shaft of the movable member, such as being coupled to the first shaft, rotatable with the rotation of the movable member,
  • the element has two bosses, a first boss and a second boss 81, 81' (only 81 is shown), which are respectively located at both sides of the element.
  • the middle portion of the blade carrier has two ribs on both sides, and the first rib and the second rib 82, 82' , (only 82 is shown in the figure).
  • the member that connects the first shaft or the second shaft also rotates.
  • the blade carrier is then moved toward the second end of the housing to eject the blade.
  • the second end is the use end and the first end is the non-use end.
  • the first boss is blocked by the first rib, and the rotation cannot be continued, so that the movable member is also fixed, and the rotation cannot be continued to achieve the purpose of protecting the non-use end.
  • the member connecting the first shaft or the second shaft rotates, and then the blade carrier is moved toward the first end of the housing to push out the blade.
  • the first end is the use end and the second end is the non-use end.
  • the second boss is blocked by the second rib and cannot continue to rotate, thereby achieving the purpose of protecting the non-use end.
  • the movable member of the present embodiment is located only on one side of the housing, such as the first movable member 151, and the other portions are the same as in Embodiment 4.

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Abstract

一种具有双刀片的实用刀，包括两端有开口的壳体（100），安装在所述壳体内的并且可在所述壳体内移动的刀片承载件（110），与所述刀片承载件连接的移动组件（120），用以带动所述刀片承载件分别朝所述壳体两端的方向运动，还包括限位件（130），所述刀片承载件上设置有抵挡部（111），所述限位件具有限位部（131），所述限位部可变换与所述抵挡部的相对位置，从而使所述刀片承载件能够朝向单一方向移动，从而避免刀片承载件意外滑动推出刀片伤及使用者。

Description

一种具有双刀片的实用刀
技术领域
本实用新型涉及手动工具领域，更具体地，本实用新型涉及一种具有双刀片的实用刀。
背景技术
实用刀是手动工具中非常常用的工具，实用刀的应用也非常广泛，几乎可以用于各种场合的切割使用，属于家庭常备工具。然而，实用刀的使用也是非常不安全的，尤其是对于小孩子。所以实用刀的安全性能非常的重要。目前市场上有具有双刀片的实用刀，两头都可以使用，非常方便，但是也增加了实用刀的危险性。
中国实用新型专利“双向实用刀”（专利号为ZL201110108136.0，授权公告号为：CN102189558B）就公开了这样一种具有双刀片的实用刀。其可从刀柄两端伸出刀片，结构包括刀柄、刀片承载件、推掣组件、刀片，刀片承载件可移动安装在刀柄内，推掣组件连接在到加上并凸露在刀柄外，刀片承载件的两端均设伸缩扣，刀柄上设有推掣组件定位的第一位置、中间位置和第二位置，推掣组件定位于第一位置或第二位置时安装在刀片承载件上的一个刀片伸出刀柄、另一个刀片缩进刀柄，推掣组件定位与中间位置时安装在到机上的两个刀片承载件均缩进刀柄。
然而，这种双向实用刀的设计缺乏保护装置，因为双向刀在使用时，分为使用端和手持端，在使用刀具的使用端的过程中可能因误操作导致手持端刀片伸出，有一定的安全隐患。
实用新型内容
本实用新型的一个目的是提供一种具有安全保护设计的具有双刀片的实用刀，避免对使用者造成意外伤害。
为解决上述问题，本实用新型提供了一种具有双刀片的实用刀，其特征在于，包括壳体，具有第一端和第二端，用于分别承载两个刀片于两端的刀片承载件，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。
在另一个实施例中，所述活动件包括护套，用于套在所述第一端或第二端的边缘处。
在另一个实施例中，所述活动件，可平移地安装在所述壳体上，用于沿所述壳体分别向所述第一端或第二端移动，所述活动件两侧均具有活动护档，用于档在所述第一端和第二端。
在另一个实施例中，所述活动件一端与所述壳体上的中间部分连接，另一端可以分别运动到壳体的第一端或第二端，所述活动件的另一端连接护档，用于档在所述第一端或第二端。
在另一个实施例中，所述活动件一端与所述壳体中间部分轴连接，使活动件能够绕轴转动，从而能够分别运动到所述壳体的两端。
进一步，所述活动件还包括位于所述活动件的通孔，能够通过所述通孔的按钮和与按钮连接的弹性件。
进一步，所述上壳体上与按钮相对应的位置上具有按钮孔，用于容纳活动件上按下的所述按钮。
进一步，所述刀片承载件处于所述壳体中间位置时，所述刀片承载件与所述按钮孔相应位置上设置凹槽，所述凹槽与所述按钮和所述弹性件相配合，仅当刀片承载件位于所述壳体的中间位置时，所述弹性件能够穿过所述按钮孔与所述凹槽配合，从而所述弹性件可以在凹槽内被压缩。
进一步，本实用新型的具有双刀片的实用刀还包括位于壳体和刀片承载件之间的转动件，与所述活动件轴连接，如第一轴或第二轴连接，可随活动件的转动而转动，所述转动件上具有阻挡部，位于所述转动件的一侧部，当所述活动件转动到所述壳体一端的时候，所述阻挡部在所述转动件上转动到靠近所述活动件的一侧，从而阻挡所述刀片承载件向所述活动件所在的一端运动。
进一步，所述刀片承载件上的中间位置设有向前凸起的凸部，当所述活动件转动到所述壳体一端的时候，所述阻挡部位于所述凸部靠近所述活动件的一侧，从而所述阻挡部能够阻挡所述刀片承载件上的所述凸部向所述活动件的一端运动。
进一步，所述活动件尾部设有结构体，其中，所述结构体在中心具有销孔，所述销穿过所述销孔与所述活动件连接。
进一步，所述结构体在位于中心位置的所述销孔两侧分别通过两个固定件分别与所述活动件连接，从而将结构体与活动件固定。
进一步，所述结构体连接有弹性结构，所述弹性结构与所述结构体的中间位置固定连接，或为一体延伸，其中所述弹性结构包括两个翼片和分别从中间位置向两侧延伸，并在末端向内突出。
进一步，所述活动件设有凸条，可与所述壳体相配合，防止所述活动件上下波动。
进一步，所述活动件与所述壳体的大小相适合，可以容纳所述壳体在所述活动件内，其中，所述活动件一端通过轴与所述壳体相连，另一端通过销将所述活动件固定。
进一步，所述活动件包括分别位于壳体两侧的第一活动件和第二活动件，其中所述第一活动件通过第一轴与位于所述壳体上侧的上壳体相连，所述第二活动件通过第二轴与所述壳体下侧的下壳体相连，其中所述第一轴和第二轴可以为一体轴的两部分，或处于一个轴线两端的两个分开的轴。
进一步，所述活动件的第一活动件和第二活动件在靠近端部的位置上分别具有第一通孔，第一按钮和第二通孔，第二按钮，其中所述第一按钮位于所述第一通孔，所述第二按钮位于所述第二通孔。
进一步，所述第一按钮和第二按钮通过弹性体相连，或与弹性体一体形成。
进一步，其特征在于，所述弹性体为曲线形。
进一步，所述弹性体包括第一部分，第二部分和第三部分，所述第一部分和第三部分分别与所述第一按钮和第二按钮相连，中间形成空隙，并向一侧延伸，所述第二部分的位于第一部分和第三部分中间，两端分别与所述第一部分和第三部分相连，位于空隙的上方，并且相反的一侧延伸。
进一步，所述结构体在上部和下部分别具有向内的突部。
进一步，所述结构体向内的一侧还具有一沟槽。
进一步，所述第一轴通过第一活动件上的手柄孔和上壳体上的壳体孔将第一活动件和上壳体轴连接，其中所述壳体孔两侧还具有长条形的槽。
进一步，在所述第一壳体和第一活动件之间具有第一保护层，在所述第二壳体和第二活动件之间具有第二保护层，其中所述第一保护层和第二保护层在所述第一轴和第二轴的位置上分别具有孔。
在另一个实施例中，本实用新型还提供一种具有双刀片的实用刀，其特征在于，包括两端有开口的壳体，刀片承载件，安装在所述壳体内的并且可在所述壳体内移动，与所述刀片承载件连接的移动组件，用以带动所述刀片承载件分别朝所述壳体两端的方向运动，限位件，所述限位件具有限位部，其中，所述刀片承载件上设置有抵挡部，所述限位部可变换与所述抵挡部的相对位置，从而使所述刀片承载件能够朝向使用者希望的方向移动。
进一步，本实用新型的具有双刀片的实用刀还包括与所述限位件连接的设置在壳体外侧的触发件，所述触发件可以带动所述限位件运动，使所述限位部能够在所述抵挡部两侧的变换位置。
进一步，所述限位件包括侧部有豁口的环形体，在所述环形体上与所述豁口相对的侧壁为限位部，其中，所述豁口的宽度大于所述抵挡部的宽度，抵挡部可以通过所述豁口进入所述环形体的内部。
进一步，所述限位件具有连接部，从所述环形体的一端向外延伸，与所述触发件连接，其中所述触发件可以带动所述环形体旋转。
进一步，所述连接部的外表面具有间隔的凸缘，所述触发件的内部具有相应的凹陷，使所述触发件与所述连接部可以配合在一起做旋转运动。
进一步，所述触发件的外部设置成圆形盖体，所述盖体的中央有一个通洞，所述触发件还包括螺杆，其具有杆部和杆部连接，比杆部横截面大的头部，所述螺杆的杆部可以穿过所述通洞，所述头部则限制在所述盖体的通洞的外部。
进一步，所述连接部内部还具有连接孔，内部容纳所述螺杆并与所述螺杆相配合，使所述触发件与所述限位件相互固定。
进一步，所述触发件上还具有方向标识，指示所述刀片承载件可以运动的方向。
进一步，所述壳体上还具有第一槽，第二槽和第三槽，分别对应所述移动组件位于第一位置，中间位置，和第二位置。
进一步，所述移动组件包括手动部和与手动部连接的延伸部，所述延伸部还具有侧向的凸肩，用以分别卡入所述第一槽，第二槽和第三槽。
进一步，所述限位件包括凸块，凸块可以阻挡住所述刀片承载件的抵挡部。
进一步，所述限位件具有连接部，从所述凸块的一端向外延伸，与所述触发件连接，其中所述触发件可以带所述凸块旋转，从而使所述凸块可以分别运动到所述抵挡部的两侧。
在另一个实施例中，本实用新型还提供一种具有双刀片的实用刀，其特征在于，包括两端有开口的壳体，安装在所述壳体内并且能够在所述壳体内移动的刀片承载件，与所述刀片承载件连接的移动组件，用以带动所述刀片承载件朝所述壳体两端的方向运动，限位件，其中，所述刀片承载件上设置有抵挡部，其中所述限位件可变换与所述抵挡部的相对位置，当限位件处于限位位置的时候，限位件可以限位所述抵挡部将所述刀片承载件限位，当限位件处于脱离限位位置的时候，所述限位件释放抵挡部，使所述刀片承载件可以移动。
进一步，本实用新型的具有双刀片的实用刀还包括还包括与限位件连接的设置在壳体外侧的触发件，所述触发件可以带动所述限位件运动，使所述限位部能够在所述抵挡部两侧的限位位置和脱离限位位置间变换位置。
进一步，所述抵挡部具体为刀片承载件中部位置上的前凸，所述限位件为空心体，所述触发件为与所述限位件连接的推抵元件，可以推动所述限位件进行前后移动操作，在所述限位件处于限位位置时，所述抵挡部的前凸被限制在所述限位件的空心体内，在按下所述推抵元件后，所述限位件随所述推抵部向后移动，使所述限位件脱离所述抵挡部，移动到脱离限位位置，从而所述刀片承载件可以移动。
本实用新型的效果是，限位件的限位部或凸块可以分别运动到抵挡部的两端，从而使刀片承载件可以无法往限位的方向上运动，而只能朝相反的方向运动，从而使刀片不会无意中脱出，达到安全的目的。在另一个实施例中，限位件可以限位抵挡部，从而使刀片承载件无法运动，在推抵元件带动限位件脱离限位位置的时候，刀片承载件可以运动，推出刀片。在本实用新型的另一个实施例中，通过设置可以分别运动到壳体两端的活动件，可以保护刀片不从有活动件一侧的壳体伸出，从而达到安全的目的。
附图说明
图1是本实用新型具有双刀片的实用刀的外观图。
图2是本实用新型具有双刀片的实用刀的爆炸图。
图3是本实用新型具有双刀片的实用刀的刀片承载件的正视图。
图4是本实用新型具有双刀片的实用刀的限位件的立体图。
图5是本实用新型具有双刀片的实用刀的限位件的另一方向的立体图。
图6是本实用新型具有双刀片的实用刀的触发件与限位件结合的立体图。
图7是本实用新型具有双刀片的实用刀的正视图。
图8是本实用新型图7中具有双刀片的实用刀A-A方向上的剖面图。
图9是本实用新型图7中具有双刀片的实用刀B-B方向上的剖面图。
图10是本实用新型具有双刀片的实用刀的实施例2中的限位件示意图。
图11是本实用新型具有双刀片的实用刀的实施例3的限位件示意图。
图12是本实用新型具有双刀片的实用刀的实施例4的外观图。
图13是本实用新型具有双刀片的实用刀的实施例4的活动件立体图。
图14是本实用新型具有双刀片的实用刀的实施例4的结构体和弹性结构立体图。
图15是本实用新型具有双刀片的实用刀的实施例4的爆炸图。
图16是本实用新型具有双刀片的实用刀的实施例4的正视图。
图17是本实用新型具有双刀片的实用刀的实施例4的侧向剖视图。
图18是本实用新型具有双刀片的实用刀的实施例4的横向剖视图。
图19是本实用新型具有双刀片的实用刀的实施例4的横断面剖视图。
图20是本实用新型具有双刀片的实用刀的实施例5的外观图。
图21是本实用新型具有双刀片的实用刀的实施例5的第一爆炸图。
图22是本实用新型具有双刀片的实用刀的实施例5的第二爆炸图。
图23是本实用新型具有双刀片的实用刀的实施例5中弹性体的示意图。
图24是本实用新型具有双刀片的实用刀的实施例6的外观图。
图25是本实用新型具有双刀片的实用刀的实施例6的爆炸图。
图26是本实用新型具有双刀片的实用刀的实施例7的外观图。
图27是本实用新型具有双刀片的实用刀的实施例7的爆炸图。
图28是本实用新型具有双刀片的实用刀的实施例8的外观图。
图29是本实用新型具有双刀片的实用刀的实施例8的转动示意图。
图30是本实用新型具有双刀片的实用刀的实施例9的内部结构示意图。
图31是本实用新型具有双刀片的实用刀的实施例10的外观图。
图32是本实用新型具有双刀片的实用刀的实施例10的爆炸图。
具体实施方式
实施例1
如图1-9所示，一种具有双刀片的实用刀，包括两端有开口的壳体100，安装在壳体内的并且可在壳体内移动的刀片承载件110，设置在壳体外侧并与刀片承载件连接的移动组件120，用以带动所述刀片承载件朝所述壳体两端的方向运动，其特征在于，所述刀片承载件上设置有抵挡部111，本实用新型的具有双刀片的实用刀还包括限位件130，其中限位件具有限位部131，限位部可变换与抵挡部111的相对位置，从而使刀片承载件110能够朝使用者希望的移动。在限位部130处于相对抵挡部111的第一位置的时候，刀片承载件110只能朝向第一方向运动，在限位部131处于相对抵挡部的第二位置的时候，刀片承载件110只能朝向与第一方向相反的第二方向移动，所以该移动方向为单一方向。
具体地，限位件130设置在刀片承载件110中间位置。其中，限位件130的限位部131可分别在抵挡部第一侧和与第一侧相对的第二侧间变换位置，当限位部131在抵挡部111第一侧时候，刀片承载件110只能向限位部111的另一侧，也就是第二侧方向运动，当限位部131在抵挡部111的第二侧的时候，刀片承载件110只能向抵挡部111的第一侧方向运动。本实用新型的具有双刀片的实用刀还包括与限位件连接的设置在壳体外侧的触发件140，触发件140可以带动限位件130运动，使限位部131能够在抵挡部111两侧的第一位置和第二位置间变换位置。
具体地，限位件130包括侧部有豁口132的环形体，在环形体上与豁口相对的侧壁为限位部131，其中，豁口132的宽度大于抵挡部111的宽度，抵挡部可以通过该豁口进入环形体的内部。这样当限位部位于抵挡部第一侧时候，刀片承载件只能向抵挡部的另一侧，也就是第二侧方向运动，当限位部131在抵挡部111的第二侧的时候，刀片承载件110只能向抵挡部的第一侧方向运动。抵挡部111具体为刀片承载件中部位置上的一个向前凸起的凸部。环形体可以圆环形柱状体，矩形环状体，或其它任何环形形状。凸部为圆柱形，长条形或其它可以达到同样目的的形状。举例来说，当这样，当凸部为圆柱形的时候，圆柱形凸部可以通过豁口132，进入圆环形柱状体内部，并且由豁口对侧的限位部131阻挡在圆环形柱状体内部。当环形体为圆环形柱状体的时候，凸部也可以是矩形凸部，只要凸部可以从豁口进入环形体内部，并且可以被限位部阻挡就可以了。
限位件130具有连接部133，从环形体的一端向外延伸，与壳体外侧的触发件140连接，其中触发件140可以带动环形体旋转，从而使限位件130的限位部131可以分别运动到抵挡部111的两侧。其中连接部的外表面具有间隔的凸缘134，触发件的内部具有相应的凹陷141，使触发件140与限位件130的连接部134可以配合在一起做旋转运动。连接部也可以设置成矩形，触发件内部设置成相应形状，能够使触发件与限位件的连接部可以配合在一起做旋转运动。触发件的外部设置成圆形盖体，盖体外侧部具有纹路，方便手持触发件的盖体旋转运动，从而带动限位件转动。
进一步，触发件还包括一个连接件142，连接件可为一个螺杆，其具有杆部和杆部连接，比杆部横截面大的头部，盖体的中央有一个通洞，螺杆的杆部可以穿过这个通洞，头部则限制在盖体的通洞的外部。连接部133内部还具有连接孔135，内部可以容纳螺杆并与螺杆相配合，使触发件与限位件相互固定。具体地，螺杆外部具有外螺纹，连接孔的内部具有与螺杆外螺纹相匹配的内螺纹，这样触发件与限位件就相对固定了。进一步触发件上还具有运动方向标识143，指示所述刀片承载件可以运动的方向，或该运动方向可以伸出那一侧的刀片或工具。
所述壳体包括上壳体101和下壳体102，两个壳体通过紧固件连接而成，刀片承载件可移动安装在壳体上。壳体内设置有轨道，刀片承载件设置在轨道上，可沿轨道移动。壳体包括第一轨道103和第二轨道104，为分设在壳体的两侧条形凸起，刀片承载件在相应条形凸起的位置上分别有容纳条形凸起的第一凹槽112和第二凹槽113，从而使刀片承载件能够沿条形凸起左右运动。
移动组件120连接在刀片承载件110上，包括手动部121和与手动部连接的连接体122，手动部设置在壳体外部，方便手推动，连接体122连接在刀片承载件110上，带动刀片承载件运动。具体地，手动部的顶部有纹路，增加接触的摩擦力，方便手推。连接体从手动部向下延伸，刀片承载件在相应位置上有相应凹位，从而与刀片承载件配合，将连接体与刀片承载件相对固定，从而手动部可以带动刀片承载件运动。
刀片承载件包括第一安置单元114和第二安置单元115分设在刀片承载件的两端，第一安置单元上安装第一刀片，第二安置单元安装第二刀片。第一安置单元具有上部的弹片116和下部的突起的挡部117，上部的弹片固定刀片的上部，下部的挡件可以限位刀片的刃部。具体地，上部的弹片上设有卡缘，所述的刀片上设有对应所述卡缘的卡口，从而可以固定刀片的上部。第二安置单元可以具有同样的设置，或可以安置其它工具而设置不同的结构。刀片承载件还包括第一解锁件118和第二解锁件119，分别设置在第一安置单元和第二安置单元。以第一解锁件为例，第一解锁件具有按压部1191和与按压部相连的凸起结构1192，凸起结构能够压迫弹片，能够使刀片从弹片的卡缘中释放出来，从而使刀片可以更换使用。
壳体上具有通道105，移动组件可在通道中移动，从而移动刀片承载件。壳体还包括第一限位单元106，和第二限位单元107，分别固定在壳体上，并且设置在第一安装单元和第二安置单元的相应位置上。当移动组件推动刀片承载件到第一限位单元位置的时候，刀片承载件上的第一安置单元上的第一刀片从壳体的第一端口伸出，处于使用状态，第二刀片则位于壳体内。当移动组件推动刀片承载件到第二限位单元位置的时候，刀片承载件上的第二安置单元上的第二刀片从壳体的第二端口伸出，处于使用状态，第一刀片位于壳体内。第一限位单元和第二限位单元分设于壳体前部和后部，均具有向上延伸的钩部1061和1071，用于限位刀片承载件的继续移动。当移动组件位于壳体的中间位置的时候，安装在刀片承载件上的第一刀片和第二刀片均收在壳体内。第一刀片与第二刀片可以相同，也可以为不同的刀片或剪刀等其它任何功能的工具，满足不同的需求。
进一步，壳体上还具有第一槽1081，第二槽108和第三槽1082，分别对应移动组件位于第一位置，即第一刀片从壳体的第一端口伸出时对应的移动组件位置，移动组件位于中间位置，即第一刀片和第二刀片都在壳体内，和移动组件位于第二位置，即第二刀片从壳体的第二端口伸出时对应的移动组件位置。所述移动组件的延伸部底部还设有穴，穴内设置有弹簧124，使用时，弹簧与刀片承载件配合，使移动组件可以上下运动。移动组件包括手动部和与手动部连接的延伸部，延伸部与刀片承载件连接，所述延伸部还具有侧向的凸肩123，当手动部下压的时候，延伸部的凸起可分别卡入所述第一槽，第二槽和第三槽，起到临时固定的功能。
实施例2
如图1-10所示，一种具有双刀片的实用刀，包括两端有开口的壳体，安装在壳体内的并且可在壳体内移动的刀片承载件，设置在壳体外侧并与刀片承载件连接的移动组件，用以带动所述刀片承载件朝所述壳体两端的方向运动，其特征在于，所述刀片承载件上设置有抵挡部，本实用新型的具有双刀片的实用刀还包括限位件，其中限位件具有限位部，限位部可变换与抵挡部的相对位置，从而使刀片承载件能够朝使用者希望的方向移动。在限位部处于相对抵挡部的第一位置的时候，刀片承载件只能朝向第一方向运动，在限位部处于相对抵挡部的第二位置的时候，刀片承载件只能朝向与第一方向相反的第二方向移动，所以该移动方向为单一方向。
具体地，限位件设置在刀片承载件中间位置。其中，限位件的限位部可分别在抵挡部第一侧和与第一侧相对的第二侧间变换位置，当限位部在抵挡部第一侧时候，刀片承载件只能向限位部的另一侧，也就是第二侧方向运动，当限位部在抵挡部的第二侧的时候，刀片承载件只能向抵挡部的第一侧方向运动。本实用新型的具有双刀片的实用刀还包括与限位件连接的设置在壳体外侧的触发件，触发件可以带动限位件运动，使限位部能够在抵挡部两侧的第一位置和第二位置间变换位置。
具体地，限位件130a包括凸块131a，凸块可以阻挡住所述刀片承载件的抵挡部。这样当凸块位于抵挡部第一侧时候，刀片承载件只能向抵挡部的另一侧，也就是第二侧方向运动，当凸块在抵挡部的第二侧的时候，刀片承载件只能向抵挡部的第一侧方向运动。抵挡部具体为刀片承载件中部位置上的一个向前凸起的凸部。凸部为圆柱形，长条形或其它可以达到同样目的的形状。
限位件具有连接部，从凸块的一端向外延伸，与壳体外侧的触发件连接，其中触发件可以带凸块旋转，从而使限位件的凸块可以分别运动到抵挡部的两侧。其中连接部的外表面具有间隔的凸缘，触发件的内部具有相应的凹陷，使触发件与限位件的连接部可以配合在一起做旋转运动。连接部也可以设置成矩形，触发件内部设置成相应形状，能够使触发件与限位件的连接部可以配合在一起做旋转运动。触发件的外部设置成圆形盖体，盖体外侧部具有纹路，方便手持触发件的盖体旋转运动，从而带动限位件转动。
进一步，触发件还包括一个连接件，连接件包括一个螺杆，其具有杆部和杆部连接，比杆部横截面大的头部，盖体的中央有一个通洞，螺杆的杆部可以穿过这个通洞，头部则限制在盖体的通洞的外部。连接部内部还具有连接孔，内部可以容纳螺杆并与螺杆相配合，使触发件与限位件相互固定。具体地，螺杆外部具有外螺纹，连接孔的内部具有与螺杆外螺纹相匹配的内螺纹，这样触发件与限位件就相对固定了。进一步触发件上还具有运动方向标识，指示该运动方向可以伸出那一侧的刀片或工具。
本实施例的其它部分与实施例1可以相同，也可以是其它方式的设置，都在本实用新型的权利项保护范围中。
实施例3
如图1- 11一种具有双刀片的实用刀，包括两端有开口的壳体，安装在壳体内的并且可在壳体内移动的刀片承载件110，设置在壳体外侧并与刀片承载件连接的移动组件，用以带动所述刀片承载件朝所述壳体两端的方向运动，其特征在于，所述刀片承载件110上设置有抵挡部111，还包括限位件130b，其中限位件可变换与抵挡部的相对位置，当限位件处于第一位置时，即限位位置的时候，限位件可以限位抵挡部使刀片承载件无法移动，当限位件处于第二位置时，即离开限位位置的时候，限位件不会限位抵挡部，使刀片承载件可以移动。
本实用新型的具有双刀片的实用刀还包括与限位件连接的设置在壳体外侧的触发件，触发件可以带动限位件运动，使限位部能够在抵挡部两侧的第一位置和第二位置间变换位置。
具体地，抵挡部具体为刀片承载件中部位置上的一个前凸。所述限位件为空心体，如具体为空心圆柱体或其它空心形状。触发件为一与限位件连接的推抵元件，可以推动限位件进行前后移动操作。在限位件处于第一位置，即限位位置时，抵挡部的前凸被限制在限位件的空心圆柱内，无法移动推出刀片。在按下推抵元件后，限位件同时随推抵部向后移动，使限位件脱离抵挡部，移动到第二位置，即脱离限位位置，从而刀片承载件可以移动以向壳体的任意一端推出刀片。
本实施例的其它部分与实施例1可以相同，也可以是其它方式的设置，都在本实用新型的权利项保护范围中。
实施例4
如图12-19所示，并结合其它相关图示，一种具有双刀片的实用刀，包括壳体100，具有第一端和第二端，用于分别承载两个刀片于两端的刀片承载件110，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件150，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。所述活动件一端与壳体中间部分轴连接，另一端能够绕轴转动，从而能够分别运动到壳体的两端，第一端或第二端。
本实施例的具有双刀片的实用刀，还包括设置在壳体外侧并与刀片承载件连接的移动组件120，用以带动所述刀片承载件分别朝所述壳体第一端或第二端的方向运动。
壳体100包括位于上侧的上壳体101和位于下侧的下壳体102。所述活动件150包括第一活动件151和第二活动件152，分别位于壳体100的两侧。其中第一活动件151通过第一轴18与上壳体101相连，第二活动件通过第二轴19与下壳体102 相连，第一轴和第二轴可以为一体轴两端的两部分，或处于一个轴线两端的两个分开的轴，从而活动件可以绕壳体转动，能够分别运动到壳体的两端，第一端或第二端。其中所述第一轴和第二轴具体为如图所示的刀头子钉，第一活动件和第二活动件，上壳体和下壳体有通孔，第一轴如图的刀头子钉通过第一活动件上的手柄孔158和上壳体上的壳体孔159将第一活动件和上壳体轴连接，第二轴通过第二活动件和下壳体上的通孔将第二活动件和下壳体轴连接。
其中所述活动件150还包括位于所述活动件靠近轴的端部的通孔153和位于通孔内的按钮154，如位于第一活动件，其中在本实施例中，通孔为图示中的圆拱形状或圆形，或其它任何形状。所述活动件150还包括与按钮后部连接的弹性件155，这样，当按下按钮的时候，可以将按钮按出活动件的通孔，运动到活动件的内侧之外。这样正常情况下，按钮位于通孔内部，活动件无法移动；当按下按钮的时候，将按钮按出活动件的通孔，这样活动件就可以绕轴运动，分别能够运动到壳体的两侧。
进一步，上壳体上与按钮相对应的位置上具有按钮孔156，当按钮按下的时候，可以容纳按钮于其中，从而不会阻挡活动件150绕轴运动。其中，弹性件155穿过上壳体上的按钮孔156与刀片承载件相配合，当释放按钮的时候，弹性件如弹簧将按钮弹起回复到第一活动件内的通孔153内部，从而阻挡住活动件继续运动，将活动件固定。
具体地，刀片承载件处于中间位置时，刀片承载件与上壳体按钮孔相应位置上设置凹槽157，所述凹槽157与所述按钮154和弹性件155如弹簧相配合，仅当刀片承载件位于中间位置时，所述弹性件能够穿过所述按钮孔与所述凹槽配合，从而所述弹性件可以在凹槽内被压缩。这时，按下按钮的时候，按钮可以进一步进入到上壳体的按钮孔156内，使活动件可以绕轴旋转，同时在按钮被按下的时候，由于凹槽与弹性件固定，使得刀片承载件无法移动，即达到的效果为，当活动件可以运动的时候，刀片承载件110无法左右移动，使本实用新型的具有双刀片的实用刀使用起来非常安全；当刀片承载件位于两侧位置，即刀片伸出的时候，由于凹槽不在壳体的中间位置上，按钮无法被按下，从而使活动件无法运动。
进一步本实用新型的具有双刀片的实用刀还包括位于壳体和刀片承载件之间的转动件180，与所述活动件的第一轴或第二轴连接，如与第一轴连接，可随活动件的转动而转动，所述转动件上具有阻挡部181，位于所述转动件的一端的侧部，当所述活动件转动到壳体一端的时候，所述阻挡部在所述转动件上随所述活动件的第一轴转动到靠近所述活动件的一侧，从而阻挡所述刀片承载件向有所述活动件的一端运动。这样当刀片承载件在壳体中间位置时，所述转动件上的阻挡部会挡住刀片承载件，阻止刀片承载件往有活动件的这一侧移动，这样活动件一侧的刀片就不会出来，起到安全作用。所述刀片承载件的中间位置上设有向前凸的凸部182，当所述活动件转动到壳体一端的时候，所述阻挡部181在所述凸部182的有活动件方向上的一侧，从而所述阻挡部能够阻挡所述刀片承载件上的所述凸部向有所述活动件的一端运动。转动件180可以有两个，分别设置在刀片承载件的两侧，刀片承载件上则在两侧分别设置凸部，分别和设置在刀片承载件两侧的转动件能够形成干涉。两个转动件分别与第一轴和第二轴连接，随第一轴和第二轴转动而转动，从而改变转动件上阻挡部与刀片承载件上凸部的相对方向。具体地，两个转动件的另一端分别有连接体，分别与作为第一轴或第二轴的刀头子钉的向内的一端连接，从而转动件可以随轴转动。具体地，连接体内有连接孔，可以容纳到头子钉的一端，从而形成连接。
第一活动件和第二活动件组成的活动件分别与壳体的左右两部分的大小相适合，可以分别容纳壳体的左右两部分在第一活动件和第二活动件中间。活动件的第一活动件和第二活动件一端通过轴与壳体相连，另一端通过销161将第一活动件和第二活动件相互固定。
进一步，活动件尾部设有结构体191和与所述结构体连接的弹性结构192，其中，所述结构体191在中心具有销孔193，所述销161穿过所述销孔193与活动件的第一活动件和第二活动件连接。所述结构体191在位于中心位置的销孔193两侧分别通过两个螺钉分别与第一活动件和第二活动件固定连接，从而将结构体与活动件固定连接。
所述弹性结构192与所述结构体191的中间位置固定连接，或为一体延伸。其中所述弹性结构192包括两个翼片196和197分别从中间位置向两侧延伸，并在末端向内突出，可为钩状。当活动件运动到壳体一端的时候，弹性结构的翼片弹起，被压迫，从而可以将壳体固定在活动件内，防止活动件上下波动。进一步，第一活动件和第二活动件还设有凸条195，可与壳体100相配合，防止活动件150上下波动。
所述壳体包括上壳体101和下壳体102，两个壳体通过紧固件连接而成，刀片承载件可移动安装在壳体上。壳体内设置有轨道，刀片承载件设置在轨道上，可沿轨道移动。壳体包括第一轨道103和第二轨道104，为分设在壳体的两侧条形凸起，刀片承载件在相应条形凸起的位置上分别有容纳条形凸起的第一凹槽112和第二凹槽113，从而使刀片承载件能够沿条形凸起左右运动。
移动组件120连接在刀片承载件110上，包括手动部121和与手动部连接的连接体122，手动部设置在壳体外部，方便手推动，连接体122连接在刀片承载件110上，带动刀片承载件运动。具体地，手动部的顶部有纹路，增加接触的摩擦力，方便手推。连接体从手动部向下延伸，刀片承载件在相应位置上有相应凹位，从而与刀片承载件配合，将连接体与刀片承载件相对固定，从而手动部可以带动刀片承载件运动。
刀片承载件包括第一安置单元114和第二安置单元115分设在刀片承载件的两端，第一安置单元上安装第一刀片，第二安置单元安装第二刀片。第一安置单元具有上部的弹片116和下部的突起的挡部117，上部的弹片固定刀片的上部，下部的挡件可以限位刀片的刃部。具体地，上部的弹片上设有卡缘，所述的刀片上设有对应所述卡缘的卡口，从而可以固定刀片的上部。第二安置单元可以具有同样的设置，或可以安置其它工具而设置不同的结构。刀片承载件还包括第一解锁件118和第二解锁件119，分别设置在第一安置单元和第二安置单元。以第一解锁件为例，第一解锁件具有按压部1191和与按压部相连的凸起结构1192，凸起结构能够压迫弹片，能够使刀片从弹片的卡缘中释放出来，从而使刀片可以更换使用。
壳体上具有通道105，移动组件可在通道中移动，从而移动刀片承载件。壳体还包括第一限位单元106，和第二限位单元107，分别固定在壳体上，并且设置在第一安装单元和第二安置单元的相应位置上。当移动组件推动刀片承载件到第一限位单元位置的时候，刀片承载件上的第一安置单元上的第一刀片从壳体的第一端口伸出，处于使用状态，第二刀片则位于壳体内。当移动组件推动刀片承载件到第二限位单元位置的时候，刀片承载件上的第二安置单元上的第二刀片从壳体的第二端口伸出，处于使用状态，第一刀片位于壳体内。第一限位单元和第二限位单元分设于壳体前部和后部，均具有向上延伸的钩部1061和1071，用于限位刀片承载件的继续移动。当移动组件位于壳体的中间位置的时候，安装在刀片承载件上的第一刀片和第二刀片均收在壳体内。第一刀片与第二刀片可以相同，也可以为不同的刀片或剪刀等其它任何功能的工具，满足不同的需求。
进一步，壳体上还具有第一槽1081，第二槽108和第三槽1082，分别对应移动组件位于第一位置，即第一刀片从壳体的第一端口伸出时对应的移动组件位置，移动组件位于中间位置，即第一刀片和第二刀片都在壳体内，和移动组件位于第二位置，即第二刀片从壳体的第二端口伸出时对应的移动组件位置。所述移动组件的延伸部底部还设有穴，穴内设置有弹簧124，使用时，弹簧与刀片承载件配合，使移动组件可以上下运动。移动组件包括手动部和与手动部连接的延伸部，延伸部与刀片承载件连接，所述延伸部还具有侧向的凸肩123，当手动部下压的时候，延伸部的凸起可分别卡入所述第一槽，第二槽和第三槽，起到临时固定的功能。
本实施例的其它部分与实施例1可以相同，也可以是其它方式的设置。
实施例5
如图20-23所示，并结合其它相关图示，一种具有双刀片的实用刀，包括壳体100，具有第一端和第二端，用于分别承载两个刀片于两端的刀片承载件110，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件150，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。所述活动件一端与壳体中间部分轴连接，另一端能够绕轴转动，从而能够分别运动到壳体的第一端和第二端。
本实施例的具有双刀片的实用刀，还包括设置在壳体外侧并与刀片承载件连接的移动组件120，用以带动所述刀片承载件分别朝所述壳体第一端或第二端的方向运动。
壳体100包括位于上侧的上壳体101和位于下侧的下壳体102。所述活动件150包括第一活动件151和第二活动件152，分别位于壳体100的两侧。其中第一活动件151通过第一轴18与上壳体101相连，第二活动件通过第二轴19与下壳体102 相连，第一轴和第二轴可以为一体轴两端的两部分，或处于一个轴线两端的两个分开的轴，从而活动件可以绕壳体转动，能够分别运动到壳体的两端，第一端或第二端。其中所述第一轴和第二轴具体为如图所示的刀头子钉，第一活动件和第二活动件，上壳体和下壳体有通孔，第一轴如图的刀头子钉通过第一活动件上的手柄孔158和上壳体上的壳体孔159将第一活动件和上壳体轴连接，第二轴通过第二活动件和下壳体上的壳体孔将第二活动件和下壳体轴连接。
其中所述活动件150还包括位于所述活动件靠近壳体端部的通孔和位于通孔内的按钮，其中在本实施例中，通孔为图示中的矩形，也可以为圆拱形状或圆形或其它形状。所述活动件150还包括与按钮后部连接的弹性体155’，这样，当按下按钮的时候，可以将按钮按出活动件的通孔，运动到活动件的内侧之外。这样正常情况下，按钮位于通孔内部，活动件无法移动；当按下按钮的时候，将按钮按出活动件的通孔，这样活动件就可以绕轴运动，分别能够运动到壳体的两侧。
在本具体实施例中，活动件的第一活动件和第二活动件在靠近端部的位置上分别具有第一通孔153a，第一按钮154a和第二通孔153b，第二按钮154b，其中第一按钮位于第一通孔，第二按钮位于第二通孔。当两个手指分别在活动件的两侧，即第一活动件和第二活动件的第一按钮和第二按钮位置上，使用时，两个手指同时按下按钮，将两个按钮同时按出活动件，这样活动件就可以绕轴运动，分别能够运动到壳体的两侧。
第一按钮和第二按钮通过弹性体155’相连，也可以与弹性体为一体形成。弹性体能够支撑第一按钮和第二按钮同时压缩至第一活动件和第二活动件内部。弹性体连接在第一按钮和第二按钮中，呈曲线形，从而能够被压缩。具体可为S型，山型等形状，在本具体实施例中，弹性体包括第一部分155a，第二部分155b和第三部分155c，第一部分和第三部分分别与第一按钮和第二按钮相连，中间形成空隙，并向一侧延伸，第二部分的位于第一部分和第三部分中间，分别与第一部分和第三部分相连，位于空隙的上方，并且相反的一侧延伸。弹性体的位置在壳体端部的外侧，不会与壳体形成干涉。也可以在壳体和刀片承载件上开口，给弹性体留出空间。弹性体的材质可以为塑料，塑胶，树脂等。
进一步本实用新型的具有双刀片的实用刀还包括位于壳体和刀片承载件之间的转动件180，与所述活动件的第一轴或第二轴连接，如与第一轴连接，可随活动件的转动而转动，所述转动件上具有阻挡部181，位于所述转动件的一侧部，当所述活动件转动到壳体一端的时候，所述阻挡部在所述转动件上随所述活动件的第一轴转动到靠近所述活动件的一侧，从而阻挡所述刀片承载件向有所述活动件的一端运动。这样当刀片承载件在壳体中间位置时，所述转动件上的阻挡部会挡住刀片承载件，阻止刀片承载件往有活动件的这一侧移动，这样活动件一侧的刀片就不会出来，起到安全作用。所述刀片承载件的中间位置上设有向前凸的凸部182，当所述活动件转动到壳体一端的时候，所述阻挡部181在所述凸部182的有活动件方向上的一侧，从而所述阻挡部能够阻挡所述刀片承载件上的所述凸部向有所述活动件的一端运动。转动件可以有两个，分别设置在刀片承载件的两侧，刀片承载件上则在两侧分别设置凸部，分别和设置在刀片承载件两侧的转动件能够形成干涉。两个转动件分别与第一轴和第二轴连接，随第一轴和第二轴转动而转动，从而改变转动件上阻挡部与刀片承载件上凸部的相对方向。具体地，两个转动件的另一端分别有连接体183，分别与作为第一轴或第二轴的刀头子钉的向内的一端连接，从而转动件可以随轴转动。具体地，连接体内有连接孔，可以容纳到头子钉的一端，从而形成连接。
具体地，本实用新型的具有双刀片的实用刀包括第一转动件180a和第二转动件180b，分别位于刀片承载件的两侧，分别与第一轴和第二轴连接。两个转动件具有如上所述的相同的结构特征和功能。壳体孔159两侧还具有长条形的槽，使刀片承载件可以相对壳体随移动组件自由移动，而不妨碍第一轴或第二轴与刀片承载件的连接关系。
进一步，活动件尾部设有结构体191a，其中，所述结构体191a在中心具有销孔193，所述销161穿过所述销孔193与活动件的第一活动件和第二活动件连接。所述结构体191在销孔193的旁边螺钉分别与第一活动件和第二活动件固定连接，从而将结构体与活动件固定连接。
所述结构体在上部和下部具有向内的突部分别为标号194和195，可以将壳体限制在活动件内，防止活动件上下波动。 凸条向内的一侧还具有一沟槽196，可以容纳弹性体的一部分，不会阻挡到弹性体。
本实用新型还包括位于转动件和壳体间的垫圈，在壳体和活动件还有一个保护层。其中，第一转动件和第一壳体之间为第一垫圈184，第二转动件和第二壳体之间为第二垫圈185；在第一壳体和第一活动件之间具有第一保护层1011，第二壳体和第二活动件之间具有第二保护层1021。第一保护层和第二保护层在第一轴和第二轴的位置上分别具有孔，可以使第一轴和第二轴分别通过，不影响本实用新型的功能。
本实用新型的其它部分参见实施例1和实施例4或其它实施例，可以与实施例1和实施例4或其它实施例相同或不同设置，都在本实用新型的保护范围之内。
实施例6
参见图24和25，以及其它相关图示，一种具有双刀片的实用刀，其特征在于，包括壳体100，具有第一端1和第二端2，用于分别承载两个刀片于两端的刀片承载件，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件150，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。所述活动件包括护套150a，用于套在所述第一端或第二端的边缘处。本实用新型的具有双刀片的实用刀包括第一刀片3和第二刀片4，分别安装在刀片承载件的两端部，能分别从壳体的第一端和第二端分别伸出，第一刀片3和第二刀片4可以相同也可以不同，其它部分与实施例4或实施例5相同。
实施例7
参见图26和27，以及其它相关图示，一种具有双刀片的实用刀，其特征在于，包括壳体100，具有第一端1和第二端2，用于分别承载两个刀片于两端的刀片承载件，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件150，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。所述活动件150b，可平移地安装在壳体上，用于沿壳体分别向第一端或第二端移动，活动件两侧均具有活动护档，分别用于档在所述第一端和第二端的外缘。护档可折叠地与活动件的一端边缘相连。本实用新型的具有双刀片的实用刀包括第一刀片3和第二刀片4，分别安装在刀片承载件的两端部，能分别从壳体的第一端和第二端分别伸出，第一刀片3和第二刀片4可以相同也可以不同，其它部分与实施例4或实施例5相同。
实施例8
参见图28和29，以及其它相关图示，一种具有双刀片的实用刀，其特征在于，包括壳体100，具有第一端1和第二端2，用于分别承载两个刀片3，4于两端的刀片承载件，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。所述活动件150c一端与所述壳体上的中间部分连接，另一端可以分别运动到壳体的第一端或第二端，所述活动件的另一端连接护档，用于档在所述第一端或第二端。所述活动件一端与壳体上的中间部分通过合页轴91连接，使活动件的另一端能够分别向壳体两侧翻转，如合页的两部分一样。具体地，壳体中部具有向外凸起的横向贯穿的通孔的第一连接体，活动件位于第一连接体两侧，同样具有横向贯穿的通孔的第二连接体。有轴91横向贯穿第一连接体和第二连接体的通孔，使活动件与壳体的中部活动连接。活动件的另一端连接护档92，用于档在所述第一端和第二端的外缘。具体地，连接护档的中间位置，这样，当活动件150c分别翻转到壳体第一端和第二端的时候，中间位置两端的部分分别可以用于挡住壳体的第一端和第二端。本实用新型的具有双刀片的实用刀包括第一刀片3和第二刀片4，分别安装在刀片承载件的两端部，能分别从壳体的第一端和第二端分别伸出，第一刀片3和第二刀片4可以相同也可以不同，其它部分与实施例4或实施例5相同。
实施例9
如图20-23和图30所示，并结合其它相关图示，一种具有双刀片的实用刀，包括壳体100，具有第一端和第二端，用于分别承载两个刀片于两端的刀片承载件110，安装在所述壳体内的并且可在所述壳体内移动，使所述刀片能够从所述壳体的第一端和第二端中的任一端伸出；和活动件150，用于活动地运动到所述第一端或第二端中的任一端相对的另一端，从而阻挡刀片在所述第一端或第二端中的任一端相对的另一端伸出。所述活动件一端与壳体中间部分轴连接，另一端能够绕轴转动，从而能够分别运动到壳体的第一端和第二端。
本实施例的具有双刀片的实用刀，还包括设置在壳体外侧并与刀片承载件连接的移动组件120，用以带动所述刀片承载件分别朝所述壳体第一端或第二端的方向运动。
壳体100包括位于上侧的上壳体101和位于下侧的下壳体102。所述活动件150包括第一活动件151和第二活动件152，分别位于壳体100的两侧。其中第一活动件151通过第一轴18与上壳体101相连，第二活动件通过第二轴19与下壳体102 相连，第一轴和第二轴可以为一体轴两端的两部分，或处于一个轴线两端的两个分开的轴，从而活动件可以绕壳体转动，能够分别运动到壳体的两端，第一端或第二端。其中所述第一轴和第二轴具体为如图所示的刀头子钉，第一活动件和第二活动件，上壳体和下壳体有通孔，第一轴如图的刀头子钉通过第一活动件上的手柄孔158和上壳体上的壳体孔159将第一活动件和上壳体轴连接，第二轴通过第二活动件和下壳体上的壳体孔将第二活动件和下壳体轴连接。
其中所述活动件150还包括位于所述活动件靠近壳体端部的通孔和位于通孔内的按钮，其中在本实施例中，通孔为图示中的矩形，也可以为圆拱形状或圆形或其它形状。所述活动件150还包括与按钮后部连接的弹性体155’，这样，当按下按钮的时候，可以将按钮按出活动件的通孔，运动到活动件的内侧之外。这样正常情况下，按钮位于通孔内部，活动件无法移动；当按下按钮的时候，将按钮按出活动件的通孔，这样活动件就可以绕轴运动，分别能够运动到壳体的两侧。
在本具体实施例中，活动件的第一活动件和第二活动件在靠近端部的位置上分别具有第一通孔153a，第一按钮154a和第二通孔153b，第二按钮154b，其中第一按钮位于第一通孔，第二按钮位于第二通孔。当两个手指分别在活动件的两侧，即第一活动件和第二活动件的第一按钮和第二按钮位置上，使用时，两个手指同时按下按钮，将两个按钮同时按出活动件，这样活动件就可以绕轴运动，分别能够运动到壳体的两侧。
第一按钮和第二按钮通过弹性体155’相连，也可以与弹性体为一体形成。弹性体能够支撑第一按钮和第二按钮同时压缩至第一活动件和第二活动件内部。弹性体连接在第一按钮和第二按钮中，呈曲线形，从而能够被压缩。具体可为S型，山型等形状，在本具体实施例中，弹性体包括第一部分155a，第二部分155b和第三部分155c，第一部分和第三部分分别与第一按钮和第二按钮相连，中间形成空隙，并向一侧延伸，第二部分的位于第一部分和第三部分中间，分别与第一部分和第三部分相连，位于空隙的上方，并且相反的一侧延伸。弹性体的位置在壳体端部的外侧，不会与壳体形成干涉。也可以在壳体和刀片承载件上开口，给弹性体留出空间。弹性体的材质可以为塑料，塑胶，树脂等。
进一步本实用新型的具有双刀片的实用刀还包括元件180’，与所述活动件的第一轴或第二轴连接，如与第一轴连接，可随活动件的转动而转动，所述元件上具有两个凸台，第一凸台和第二凸台81,81’，（图中只显示出81），分别位于所述元件的两侧部。刀片承载件上中间部分两侧具有两个凸筋，第一凸筋和第二凸筋82,82’ ，（图中只显示出82）。
当所述活动件转动到壳体一端的时候，连接第一轴或第二轴的元件也随之转动。然后向壳体的第二端移动刀片承载件，推出刀片。这种情况下，第二端为使用端，第一端为非使用端。如图30所示，这时，第一凸台被第一凸筋阻挡，无法继续转动，从而活动件也被固定，无法继续转动，达到保护非使用端的目的。当活动件转动到壳体另一端的时候，同理，连接第一轴或第二轴的元件随之转动，然后向壳体的第一端移动刀片承载件，推出刀片。这种情况下，第一端为使用端，第二端为非使用端。这时，第二凸台被第二凸筋阻挡，无法继续转动，达到保护非使用端的目的。
本实用新型的其它部分与实施例5相同或参照其它实施例，也可以与其它实施例相同或不同设置，都在本实用新型的保护范围之内。
实施例10
参加图31和32，以及图12-19的实施例4，相对于实施例4，本实施例的活动件只位于壳体一侧，如第一活动件151，其它部分与实施例4相同。
上述描述仅是对本实用新型较佳实施例的描述，并非对本实用新型范围的具体限定，本实用新型领域的普通技术人员根据上述实用新型精神做的任何变更、修饰，均属于权利要求书的保护范围。

Claims (25)

  1. 一种具有双刀片的实用刀，其特征在于，包括
    壳体，具有第一端和第二端，
    用于分别承载两个刀片于两端的刀片承载件，安装在所述壳体内，使所述两个刀片能够从分别所述壳体的第一端和第二端中的一端伸出；和
    活动件，用于活动地运动到所述第一端或第二端中的另一端，从而阻挡所述刀片在所述另一端伸出。
  2. 如权利要求1所述的具有双刀片的实用刀，其特征在于，所述活动件包括护套，用于套在所述第一端或第二端。
  3. 如权利要求1所述的具有双刀片的实用刀，其特征在于，所述活动件，可平移地安装在所述壳体上，用于沿所述壳体分别向所述第一端或第二端移动，所述活动件的另一端连接护档，用于档在所述第一端或第二端。
  4. 如权利要求1所述的具有双刀片的实用刀，其特征在于，所述活动件一端与所述壳体上的中间部分连接，另一端可以分别运动到壳体的第一端或第二端，所述活动件的另一端连接护档，用于档在所述第一端或第二端。
  5. 如权利要求1所述的具有双刀片的实用刀，其特征在于，所述活动件一端与所述壳体中间部分轴连接，使活动件能够绕轴转动，从而能够分别运动到所述壳体的第一端或第二端。
  6. 如权利要求5所述的具有双刀片的实用刀，其特征在于，所述活动件还包括位于所述活动件的通孔，能够通过所述通孔的按钮和与按钮连接的弹性件。
  7. 如权利要求6所述的具有双刀片的实用刀，其特征在于，所述壳体上与按钮相对应的位置上具有按钮孔，用于容纳活动件上按下的所述按钮。
  8. 如权利要求7所述的具有双刀片的实用刀，其特征在于，所述刀片承载件处于所述壳体中间位置时，所述刀片承载件与所述按钮孔相应位置上设置凹槽，所述凹槽与所述按钮和所述弹性件相配合，仅当刀片承载件位于所述壳体的中间位置时，所述弹性件能够穿过所述按钮孔与所述凹槽配合，从而所述弹性件可以在凹槽内被压缩。
  9. 如权利要求5所述的具有双刀片的实用刀，其特征在于，还包括位于壳体和刀片承载件之间的转动件，与所述活动件通过轴连接，可随活动件的转动而转动，所述转动件上具有阻挡部，位于所述转动件的一侧部，当所述活动件转动到所述壳体一端的时候，所述阻挡部在所述转动件上转动到靠近所述活动件的一侧，从而阻挡所述刀片承载件向所述活动件所在的一端运动。
  10. 如权利要求9所述的具有双刀片的实用刀，其特征在于，所述刀片承载件上的中间位置设有向前凸起的凸部，当所述活动件转动到所述壳体一端的时候，所述阻挡部位于所述凸部靠近所述活动件的一侧，从而所述阻挡部能够阻挡所述刀片承载件上的所述凸部向所述活动件的一端运动。
  11. 如权利要求5所述的具有双刀片的实用刀，其特征在于，所述活动件尾部设有结构体和销，其中，所述结构体在中心具有销孔，所述销穿过所述销孔与所述活动件连接。
  12. 如权利要求11所述的具有双刀片的实用刀，其特征在于，所述结构体连接有弹性结构，所述弹性结构与所述结构体的中间位置固定连接，或为一体延伸，其中所述弹性结构包括两个翼片和分别从中间位置向两侧延伸，并在末端向内突出。
  13. 如权利要求5所述的具有双刀片的实用刀，其特征在于，所述活动件包括分别位于壳体两侧的第一活动件和第二活动件，其中所述第一活动件通过第一轴与位于所述壳体上侧的上壳体相连，所述第二活动件通过第二轴与所述壳体下侧的下壳体相连，其中所述第一轴和第二轴可以为一体轴的两部分，或处于一个轴线两端的两个轴。
  14. 如权利要求13所述的具有双刀片的实用刀，其特征在于，所述活动件的第一活动件和第二活动件上分别具有第一通孔，第一按钮和第二通孔，第二按钮，其中所述第一按钮位于所述第一通孔，所述第二按钮位于所述第二通孔，其中，所述第一按钮和第二按钮通过弹性体相连，或与弹性体一体形成。
  15. 如权利要求14所述的具有双刀片的实用刀，其特征在于，还包括元件，与所述活动件通过轴连接，可随活动件的转动而转动，所述元件上具有凸台，位于所述元件的侧部，当所述活动件转动到所述壳体一端的时候，向所述壳体的第二端移动所述刀片承载件，所述刀片承载件上具有凸筋，这时，所述凸台被所述凸筋阻挡，所述活动件无法转动。
  16. 一种具有双刀片的实用刀，其特征在于，包括：
    两端有开口的壳体；
    刀片承载件，安装在所述壳体内并且可在所述壳体内移动；
    移动组件，与所述刀片承载件连接的，用以带动所述刀片承载件分别朝所述壳体两端的方向运动；和
    限位件，所述限位件具有限位部；
    其中，所述刀片承载件上设置有抵挡部，所述限位部可变换与所述抵挡部的相对位置，从而使所述刀片承载件能够朝向使用者希望的方向移动。
  17. 如权利要求16所述的具有双刀片的实用刀，其特征在于，还包括与所述限位件连接的设置在壳体外侧的触发件，所述触发件可以带动所述限位件运动，使所述限位部能够在所述抵挡部两侧的变换位置。
  18. 如权利要求17所述的具有双刀片的实用刀，其特征在于，所述限位件包括侧部有豁口的环形体，在所述环形体上与所述豁口相对的侧壁为限位部，其中，所述豁口的宽度大于所述抵挡部的宽度，抵挡部可以通过所述豁口进入所述环形体的内部。
  19. 如权利要求18所述的具有双刀片的实用刀，其特征在于，所述限位件具有连接部，从所述环形体的一端向外延伸，与所述触发件连接，其中所述触发件可以带动所述环形体旋转。
  20. 如权利要求19所述的具有双刀片的实用刀，其特征在于，所述触发件的外部设置成圆形盖体，所述盖体的中央有一个通洞，所述触发件还包括螺杆，其具有杆部和杆部连接，比杆部横截面大的头部，所述螺杆的杆部可以穿过所述通洞，所述头部则限制在所述盖体的通洞的外部，所述连接部内部还具有连接孔，内部容纳所述螺杆并与所述螺杆相配合，使所述触发件与所述限位件相互固定。
  21. 如权利要求16所述的具有双刀片的实用刀，其特征在于，所述壳体上还具有第一槽，第二槽和第三槽，分别对应所述移动组件位于第一位置，中间位置，和第二位置，所述移动组件包括手动部和与手动部连接的延伸部，所述延伸部还具有侧向的凸肩，用以分别卡入所述第一槽，第二槽和第三槽。
  22. 如权利要求17所述的具有双刀片的实用刀，其特征在于，所述限位件包括凸块，凸块可以阻挡住所述刀片承载件的抵挡部。
  23. 一种具有双刀片的实用刀，其特征在于，包括：
    两端有开口的壳体；
    刀片承载件，安装在所述壳体内并且能够在所述壳体内移动的；
    移动组件，与所述刀片承载件连接，用以带动所述刀片承载件朝所述壳体两端的方向运动；和
    限位件；
    其中，所述刀片承载件上设置有抵挡部，其中所述限位件可变换与所述抵挡部的相对位置，当限位件处于限位位置的时候，限位件可以限位所述抵挡部将所述刀片承载件限位，当限位件处于脱离限位位置的时候，所述限位件释放抵挡部，使所述刀片承载件可以移动。
  24. 如权利要求23所述的具有双刀片的实用刀，其特征在于，还包括与限位件连接的设置在壳体外侧的触发件，所述触发件可以带动所述限位件运动，使所述限位部能够在所述抵挡部两侧的限位位置和脱离限位位置间变换位置。
  25. 如权利要求24所述的具有双刀片的实用刀，其特征在于，所述抵挡部具体为刀片承载件中部位置上的前凸，所述限位件为空心体，所述触发件为与所述限位件连接的推抵元件，可以推动所述限位件进行前后移动操作，在所述限位件处于限位位置时，所述抵挡部的前凸被限制在所述限位件的空心体内，在按下所述推抵元件后，所述限位件随所述推抵部向后移动，使所述限位件脱离所述抵挡部，移动到脱离限位位置，从而所述刀片承载件可以移动。
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