WO2022156698A1 - 钉枪 - Google Patents

钉枪 Download PDF

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Publication number
WO2022156698A1
WO2022156698A1 PCT/CN2022/072696 CN2022072696W WO2022156698A1 WO 2022156698 A1 WO2022156698 A1 WO 2022156698A1 CN 2022072696 W CN2022072696 W CN 2022072696W WO 2022156698 A1 WO2022156698 A1 WO 2022156698A1
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WO
WIPO (PCT)
Prior art keywords
locking member
piston
state
transmission
striker
Prior art date
Application number
PCT/CN2022/072696
Other languages
English (en)
French (fr)
Inventor
吉绍山
梅杰
李凯凯
Original Assignee
苏州宝时得电动工具有限公司
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 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Priority to CN202280002486.5A priority Critical patent/CN115119504A/zh
Publication of WO2022156698A1 publication Critical patent/WO2022156698A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C7/00—Accessories for nailing or stapling tools, e.g. supports

Definitions

  • the present invention relates to the technical field of nailing tools, in particular to a nail gun.
  • the nail gun also known as the nailer, uses the instantaneously released energy to push the striker to do a hammering motion, and shoots the fastening element from the clip at high speed to complete the fixation of the object.
  • it can be divided into electric nail gun, pneumatic nail gun, manual nail gun, etc.
  • Part of the nail gun mainly includes a gun body, a firing pin, a holding mechanism, a power source and two pistons.
  • the striker is locked by the holding mechanism, so that one of the pistons cannot slide; then the other piston is pushed by the power source, so that the gas between the two pistons is compressed.
  • the power source pushes the piston to slide to a certain position, the holding mechanism is opened and the firing pin is unlocked, so that the firing pin is pushed out at high speed under the action of high pressure gas, and hammered on the fastening element, so that the fastening element can be ejected at high speed.
  • Traditional nail guns usually use a valve to control the airflow or a mechanical locking striker.
  • the locking striker usually makes a notch on the surface of the striker, and one side of the holding mechanism is clamped in the notch to lock the striker.
  • the notch has a great influence on the structural strength of the striker, resulting in more stringent processing requirements for the materials used in the striker.
  • a nail gun comprises: a driving mechanism; a gun body, wherein a working chamber is arranged in the gun body; a piston device is arranged in the working chamber, the piston device is provided with a striker, and the piston device is further provided with a an extension piece through which the piston device can be held in an accumulating position or released from the accumulating position to move along the axis of the working chamber to drive the striker to strike the fastening element; a control device for setting the the piston is locked in the energy storage position or the piston is released from the energy storage position; the control device includes a locking member, and a transmission member selectively engaged with or disengaged from the locking member, the The locking member has a first state and a second state.
  • the transmission member When the locking member is in the first state, the transmission member is matched with the locking member so that the locking member prevents the extension member from moving, thereby preventing the piston from moving
  • the transmission member When the device is released from the energy storage position, when the locking member is in the second state, the transmission member is disengaged from the locking member, and the piston device is released.
  • the transmission member before nailing, the transmission member is matched with the locking member, that is, the locking member is in the first state, and the piston device is kept in the energy storage position at this time. Then, under the action of the driving mechanism, the transmission member moves to disengage from the locking member, so that the locking member is in the second state, and the piston device is released from the energy storage position at this time.
  • the energy released instantaneously pushes the piston to drive the striker to move together in the working chamber, strikes the fastening element (such as a nail), and makes it shoot out at a high speed to complete the nailing operation.
  • the nail gun uses the locking piece to cooperate with the extension piece on the piston to realize the locking function of the piston, there is no need to open the firing pin during the locking process, so that the structure of the firing pin is kept intact, and the impact on the structural strength of the firing pin is effectively reduced or avoided. Ensure the stable operation of the nail gun. At the same time, during the energy storage process, the compressive force on the piston device is transmitted between the extension piece and the locking piece, and will not be transmitted to the firing pin, which effectively prevents the firing pin from being deformed due to the compressive force on the piston. Thus, the striker structure remains stable.
  • the working chamber includes a first working chamber and a second working chamber that communicate with each other
  • the piston device includes a first piston disposed in the first working chamber, and a second working chamber disposed in the second working chamber.
  • the second piston of the chamber, the striker and the extension are all provided on the first piston, and the first piston can be held in the stored position or released from the stored position by the extension.
  • the axis of the working chamber moves to drive the striker to strike the fastening element; the movement of the second piston in the second working chamber provides the power to release the first piston from the accumulating position.
  • the striker is movably disposed on the first piston through a pivot shaft, the pivot shaft is perpendicular to the extending direction of the striker, and the striker swings around the axis of the pivot shaft.
  • the extension member is a push rod, and the extension direction of the push rod is consistent with the extension direction of the striker.
  • the driving mechanism provides power for the transmission member to move relative to the locking member, and when the locking member is in the first state, the driving mechanism drives the transmission member, and the transmission member
  • the relative separation movement from the locking member makes the locking member change from the first state to the second state; when the locking member is in the second state, the driving mechanism drives the transmission member, and the transmission member is connected to the second state.
  • the locking member performs a relative engaging movement to make the locking member change from the second state to the first state.
  • both the locking member and the transmission member are rotatably installed in the working chamber, the locking member includes a first matching portion, and the transmission member includes a second matching portion , the first matching part and the second matching part realize the matching or disengagement through rotation, so that the locking part and the transmission part can realize the matching or disengaging.
  • the first matching portion includes a first inner abutting surface and a first outer abutting surface
  • the second matching portion includes a second inner abutting surface and a second outer abutting surface
  • the locking member further comprises: a blocking portion, when the first matching portion is engaged with the transmission member, the blocking portion abuts against the extension member to prevent the extension member from moving
  • the middle part connects the first matching part and the blocking part, and the first matching part and the blocking part can rotate in the same counterclockwise or clockwise direction through the middle part.
  • the intermediate portion and the extension member are respectively located on opposite sides of the striker.
  • the locking member further includes a first restoring member, and when the first matching portion is disengaged from the second matching portion, the first restoring member is used for biasing the The locking piece is restored to the first state.
  • the transmission member further comprises: an unlocking part, which can be driven by the driving mechanism to drive the second matching part to rotate.
  • the transmission member further includes a second reset member, and the second reset member is used for biasing the transmission member to maintain the matching state with the locking member.
  • a transmission device is provided between the output shaft of the driving mechanism and the transmission member, the driving mechanism drives the transmission member to move through the transmission device, and the transmission device includes: a crank, It is connected with the output shaft of the driving mechanism and rotates under the driving of the driving mechanism; the transmission pin is connected with the crank, and under the action of the driving mechanism, contacts with the transmission member and drives the transmission member to rotate.
  • Fig. 1 is a structural schematic diagram one of the nail gun described in one embodiment
  • FIG. 2 is a cross-sectional view of the nail gun structure described in one embodiment
  • Fig. 3 is the structural schematic diagram 2 of the nail gun described in one embodiment
  • FIG. 4 is a schematic structural diagram 1 of the control device in the locked state described in one embodiment
  • FIG. 5 is a second structural schematic diagram of the control device in the locked state described in one embodiment
  • FIG. 6 is a schematic structural diagram of the control device when it is about to be disengaged according to an embodiment
  • FIG. 7 is a schematic structural diagram of the control device when gradually disengaging as described in one embodiment
  • FIG. 8 is a schematic structural diagram of the control device when completely disengaged according to an embodiment
  • FIG. 9 is a schematic structural diagram of the control device after complete disengagement described in one embodiment.
  • FIG. 10 is a schematic structural diagram of a control device during return to reset described in one embodiment
  • 11 is a schematic structural diagram of the control device after return to reset described in one embodiment
  • FIG. 12 is a schematic structural diagram of the striker and the blocking portion when a gap is left in one embodiment
  • FIG. 13 is a schematic structural diagram of the striker and the extension piece described in one embodiment
  • Figure 14 is a side view of the control device in the locked state described in one embodiment
  • FIG. 15 is a schematic structural diagram of a control device in a locked state according to another embodiment.
  • nail gun 110, gun body; 111, working chamber; 1111, first working chamber; 1112, second working chamber; 120, control device; 121, piston; 1211, first piston; 1212, second piston; 122, striker; 1221, pivot; 1222, extension piece; 123, locking piece; 1231, blocking part; 1232, first fitting part; 1233, first reset piece; 1234, middle part; 1236, the first outer contact surface; 124, the transmission part; 1241, the second fitting part; 1242, the unlocking part; 1243, the pivot point; 1244, the second reset piece; 1245, the shaft; part; 1247, the second inner contact surface; 1248, the second outer contact surface; 127, the swing rod; 128, the connecting rod; 130, the driving mechanism; 131, the transmission pin; 132, the crank; 133, the transmission device; 140 , guide mechanism; 141, nail groove; 142, guide groove; 150, nail feeder.
  • a nail gun 100 includes a driving mechanism 130 , a gun body 110 , a piston 121 and a control device 120 .
  • a working cavity 111 is provided in the gun body 110 .
  • the piston 121 is arranged in the working chamber 111, and the piston 121 is provided with a striker 122.
  • the piston 121 can be kept in the energy storage position or released from the energy storage position to move along the axis of the working chamber 111 to drive the striker 122 to strike the fastening element.
  • the control device 120 is used to lock the piston 121 in the charged position or to release the piston 121 from the charged position.
  • the control device 120 includes an extension piece 1222 disposed on the piston 121 , a lock piece 123 , and a transmission piece 124 that can selectively engage or disengage the lock piece 123 , wherein the extension piece 1222 and the striker 122 are located on the same side of the piston.
  • the lock 123 has a first state and a second state. When the locking member 123 is in the first state, the transmission member 124 is engaged with the locking member 123 so that the locking member 123 prevents the extension member 1222 from moving, thereby preventing the piston 121 from releasing from the energy storage position. When the locking member 123 is in the second state, the transmission member 124 is completely disengaged from the locking member 123, and the piston 121 is released at this time.
  • the locking member 123 is provided with a first matching portion 1232
  • the transmission member 124 is provided with a second matching portion 1241
  • the first matching portion 1232 includes a first inner abutting surface 1235
  • the second mating portion 1241 includes a second inner abutting surface 1247.
  • the transmission member 124 is mated with the locking member 123.
  • the contact surface 1247 is in contact, that is, the locking member 123 is in the first state, and the piston 121 is kept at the energy storage position at this time.
  • the transmission member 124 moves to disengage from the locking member 123, so that the locking member 123 is in the second state, and the piston 121 is released from the energy storage position at this time.
  • the instantaneously released energy pushes the piston 121 to drive the striker 122 to move together in the working chamber 111 to strike the fastening element (such as a nail) so that it is ejected at a high speed to complete the nailing operation.
  • the nail gun 100 utilizes the locking member 123 to cooperate with the extension member 1222 on the piston 121 to achieve the locking function of the piston 121, there is no need to open the firing pin 122 during the locking process, so that the structure of the firing pin 122 remains intact, effectively reducing or avoiding
  • the influence on the structural strength of the striker 122 ensures the stable operation of the nail gun 100 .
  • the compressive force on the piston 121 is transmitted between the extension piece 1222 and the locking piece 123 , and will not be transmitted to the striker 122 , which effectively prevents the striker 122 from being damaged by the compressive force on the piston 121 .
  • the firing pin 122 is deformed, so that the structure of the firing pin 122 remains stable.
  • the extension piece is preferably a top rod, and the top rod is fixedly connected to the piston 121.
  • the extension piece can also be a rod-shaped object, such as a circular truncated cone, a truncated cone, and a rectangular parallelepiped. Wait.
  • the number of the pistons 121 in this embodiment may be one or more than two.
  • the nail gun 100 is a single-cylinder nailing device.
  • the nail gun 100 is a double-cylinder nailing device.
  • the driving mechanism 130 can be driven by electric energy storage, such as a DC motor or an AC motor; it can also be a driving device such as cylinder energy storage, chemical energy storage, and the like.
  • electric energy storage such as a DC motor or an AC motor
  • driving device such as cylinder energy storage, chemical energy storage, and the like.
  • the driving mechanism 130 when the driving mechanism 130 is a motor, the nail gun 100 is an electric nail gun; when the driving mechanism 130 is a pneumatic driving mechanism, the nail gun 100 is a pneumatic nail gun.
  • transmission devices 133 between the driving mechanism 130 and the transmission member 124 such as: direct transmission between the driving mechanism 130 and the transmission member 124; indirect transmission, for example, a connecting rod structure, Double link structure, three link structure or more link structure, etc.
  • the locking member 123 when the locking member 123 is in the second state, the locking member 123 can move in various ways under the driving of the extension member 1222, for example, the locking member 123 is rotated and installed in the gun body 110; or, the locking member 123 slides Installed in the gun body 110, etc.
  • the locking member 123 when the locking member 123 is installed in the gun body 110 in a sliding manner, the locking member 123 can be installed through the cooperation of the sliding block and the guide rail structure. At this time, the locking member 123 will slide away in a direction away from the striker 122 under the pushing of the extending member 1222 .
  • the locking member 123 may be provided with an inclined surface.
  • the transmission member 124 is rotatably installed in the gun body 110 ; or the transmission member 124 is slidably installed in the gun body 110 . Wherein, when the transmission member 124 is installed in the gun body 110 in a sliding manner, the transmission member 124 can be installed through the cooperation of the slider and the guide rail structure.
  • the working chamber 111 includes a first working chamber 1111 and a second working chamber 1112 that communicate with each other.
  • the piston 121 includes a first piston 1211 disposed in the first working chamber 1111 and a second piston 1212 disposed in the second working chamber 1112 .
  • the striker 122 and the extension piece 1222 are both disposed on the first piston 1211 .
  • the extension piece 1222 can move along the axis of the first working chamber 1111 along with the first piston 1211 .
  • the first piston 1211 can be held in the energy storage position or released from the energy storage position to move along the axis of the first working chamber 1111 to drive the striker 122 to strike the fastening element.
  • the driving mechanism 130 is activated to drive the second piston 1212 to slide from the second position to the first position in the second working chamber 1112 . Since the transmission member 124 and the locking member 123 are in a mating state, the first piston 1211 remains stationary under the cooperation of the extending member 1222 and the locking member 123, so that the connection between the first piston 1211 and the second piston 1212 is maintained. The gas is compressed and is in a state of energy storage.
  • the driving mechanism 130 drives the transmission member 124 to move through the transmission device 133, and controls the disengagement of the engagement between the transmission member 124 and the locking member 123, thereby allowing the locking
  • the member 123 has a pivot space, so that the locking member 123 is in a movable state.
  • the air pressure energy between the first piston 1211 and the second piston 1212 is instantly released, and the first piston 1211 is pushed to drive the striker 122 to move together in the first working chamber 1111, so that the fastening element (such as nails) are shot at high speed to complete the nailing operation.
  • the second piston 1212 has a first position and a second position in the second working chamber 1112, and the second position is disposed closer to the driving mechanism 130 or further away from the first working chamber 1111 and the first position than the first position.
  • the two working chambers 1112 are set at the communicating position.
  • the driving mechanism 130 drives the second piston 1212 to move
  • the second piston 1212 slides from the second position to the first position.
  • the transmission member 124 and the locking member 123 are disengaged.
  • the extending direction of the extension member 1222 is consistent with the extending direction of the striker 122 .
  • the arrangement of the extension piece 1222 in the housing is consistent with the arrangement of the striker 122, so as to prevent the structure of the extension piece 1222 from being interfered with the structure of the striker 122 due to the addition of the extension piece 1222 in the housing, and to ensure the stable operation of the striker 122 structure.
  • extension direction of the extension piece 1222 is consistent with the extension direction of the striker 122, and it should be understood that the extension direction of the extension piece 1222 and the extension direction of the striker pin 122 can be arranged in parallel; The extension direction of the two needs to be consistent.
  • the striker 122 is movably disposed on the first piston 1211 through the pivot shaft 1221 .
  • the pivot shaft 1221 is perpendicular to the extending direction of the striker 122 , and the striker 122 swings around the axis of the pivot shaft 1221 . From this, it can be seen that the movement of the striker 122 relative to the first piston 1211 in this embodiment is a compound movement, so that the structure of the striker 122 on the first piston 1211 remains active, which can effectively solve the problem of the extension piece caused by the striker 122 being locked.
  • the 1222 has an over-positioning phenomenon in the gun body 110 (eg, the over-positioning phenomenon between the extension piece 1222 and the copper sleeve in the gun body 110 ).
  • movably installing the striker 122 on the first piston 1211 also facilitates the assembly of the striker 122 on the first piston 1211 and improves the assembly efficiency of the nail gun 100 .
  • the swing angle of the striker 122 is -2° ⁇ 2°. In this way, by reasonably controlling the swing angle of the striker 122 on the first piston 1211 , the striker 122 keeps floating on the first piston 1211 state, and avoid excessive swinging on the first piston 1211 to cause unstable striking action.
  • the movement displacement of the striker 122 is 0.01mm ⁇ 0.11mm.
  • the movement and displacement of the striker 122 on the first piston 1211 are reasonably controlled, so that the striker 122 not only maintains a floating state on the first piston 1211 , but also avoids excessive movement on the first piston 1211 to cause unstable striking action.
  • the locking member 123 includes a first matching portion 1232 and a blocking portion 1231 for abutting against the extending member 1222 .
  • the transmission member 124 is selectively engaged with or disengaged from the first matching portion 1232.
  • the driving mechanism 130 is activated to drive the second piston 1212 to slide in the second working chamber 1112 .
  • the first piston 1211 Since the first matching portion 1232 is in a matching state with the transmission member 124 , the first piston 1211 remains stationary under the cooperation of the extending member 1222 and the blocking portion 1231 , that is, the blocking portion 1231 is in the first state. At this time, the gas between the first piston 1211 and the second piston 1212 is compressed and is in an energy storage state.
  • the driving mechanism 130 triggers the action of the transmission member 124 to control the first matching portion 1232 to disengage from the transmission member 124 . At this time, the blocking portion 1231 switches from the first state to the second state state.
  • first matching portion 1232 and the blocking portion 1231 can be directly connected to an integral structure; they can also be connected indirectly, for example, the locking member 123 further includes an intermediate portion 1234, and the first matching portion 1232 and the blocking portion 1231 are spaced apart from each other. on the middle portion 1234.
  • the middle portion 1234 and the extension member 1222 are located on opposite sides of the striker 122 respectively.
  • the blocking part 1231 is arranged across the striker 122, so that the position where the extension piece 1222 and the blocking part 1231 act is separated from the position of the middle part 1234, so that the structure of the nail gun 100 is reasonably distributed, and it is avoided that the structure is too concentrated and easy to cause interference .
  • the intermediate portion 1234 is located on the same side of the striker 122 as the extension 1222 .
  • the driving mechanism 130 drives the crank 132 to rotate counterclockwise until the transmission pin 131 contacts the unlocking part 1242 , the transmission pin 131 applies a force to the unlocking part 1242 , and at this time the transmission member 124 and the locking member 123 is in a state of about to move relatively (about to disengage), that is, the unlocking part 1242 is about to rotate counterclockwise to allow the second matching part 1241 and the first matching part 1232 to start to disengage.
  • the blocking portion 1231 is still in a stationary state, and is about to rotate clockwise to release the extension piece 1222, so that the striker 122 is turned into a striking state.
  • the locking member 123 and the transmission member 124 are both rotatably installed in the gun body 110 .
  • the transmission member 124 is provided with a second matching portion 1241 and an unlocking portion 1242 .
  • the second matching portion 1241 is selectively engaged with or disengaged from the first matching portion 1232 , and the driving mechanism 130 drives the unlocking portion 1242 to move.
  • the driving mechanism 130 drives the unlocking portion 1242 to move, so that the transmission member 124 rotates in the gun body 110 to ensure that the second matching portion 1241 is disengaged from the first matching portion 1232 .
  • FIG. 7 is in the process of gradually disengaging the mating.
  • the driving mechanism 130 acts on the unlocking portion 1242
  • the unlocking portion 1242 is triggered and starts to operate, so that the unlocking portion 1242 and the second mating portion 1241 on both sides respectively rotate around the pivot point 1243.
  • Start to rotate so that the first matching portion 1232 and the second matching portion 1241 are gradually disengaged, allowing the extension piece 1222 to drive the blocking portion 1231 to rotate around the axis of the middle portion 1234.
  • the blocking portion 1231 is switched from the first state to the second state, so that the striker 122 is in the striking position, and instantly strikes the fastening element, so that the fastening element is ejected at a high speed.
  • the first matching portion 1232 and the second matching portion 1241 may be gradually separated.
  • the driving mechanism 130 continues to drive, the second matching portion 1241 also continues to rotate around the pivot point 1243.
  • the blocking portion 1231 also continues to rotate.
  • the extension piece 1222 is gradually pushed away by the rotation.
  • the driving mechanism 130 triggers the action of the unlocking part 1242 to control the first matching part 1232 and the second matching part 1241 to gradually disengage, wherein the realization of the gradual disengagement can be as follows: the first matching The occlusion between the second matching part 1232 and the second matching part 1241 is relatively deep.
  • the first matching part 1232 is a hook
  • the second matching part 1241 is a slot. During the locking process, the hook is completely locked into the slot. medium. In this way, before the blocking portion 1231 is completely pushed out, there is a movement space, that is, before the striker 122 is released instantaneously, the blocking portion 1231 has a certain rotation space.
  • the specific position of the first position in the second working chamber 1112 can be determined according to the actual product and user's needs.
  • the first position is set as a distance of 2 mm from the instant striking position, that is, the second piston 1212 continues to move forward 2 mm from the first position to trigger the striking action of the striker 122 .
  • the displacement of the second piston 1212 by the 2 mm corresponds to the movement of the extension piece 1222 from starting to lift the preventing portion 1231 to completely pushing the preventing portion 1231 .
  • a rotating shaft 1245 is provided on the rotating fulcrum 1243 of the transmission member 124 , and the transmission member 124 is rotatably installed in the gun body 110 through the rotating shaft 1245 .
  • the second matching portion 1241 , the transmission member 124 and the unlocking portion 1242 are integrated structures, that is, one end of the transmission member 124 is the second matching portion 1241 , and the other end of the transmission member 124 is the unlocking portion 1242 .
  • the first matching portion 1232 is a groove or hole-like structure, and the second matching portion 1241 is a convex structure; or, the first matching portion 1232 is a convex structure, and the second matching portion 1241 is a groove or A hole-like structure; or, the first matching portion 1232 is a magnetic conductive or magnetic structure, and the second matching portion 1241 is an electromagnet structure.
  • the first matching portion 1232 and the blocking portion 1231 are spaced apart in the height direction of the middle portion 1234; they may also be located at the same height of the middle portion 1234, that is, the first matching portion 1232 and the blocking portion 1231 are an integrated structure , please refer to Figure 15.
  • the first matching portion 1232 is a hook.
  • the second matching portion 1241 is a card slot. The hook engages with the slot.
  • the driving mechanism 130 and the unlocking portion 1242 there are various transmission structures between the driving mechanism 130 and the unlocking portion 1242, such as: direct transmission between the driving mechanism 130 and the transmission member 124, for example, the output shaft of the driving mechanism 130 acts on the unlocking portion 1242; Indirect transmission is also possible, for example, a connecting rod structure, a double connecting rod structure, a three connecting rod structure or more connecting rod structures are connected between the two.
  • a connecting rod structure a double connecting rod structure, a three connecting rod structure or more connecting rod structures are connected between the two.
  • the swing rod 127 is rotatably installed in the gun body 110, and one end of the connecting rod 128 is rotatably connected to the swing rod 127, and is connected to the swing rod 127.
  • the other end of the rod 128 is rotatably connected to the unlocking portion 1242 .
  • the first matching portion 1232 and the second matching portion 1241 can be disengaged by the driving mechanism 130 acting on one end of the swing rod 127 .
  • the second matching portion 1241 and the first matching portion 1232 are completely disengaged from matching
  • the blocking portion 1231 is also gradually pushed away by the extension member 1222, and the first matching portion 1232 and the blocking portion 1231 rotate clockwise together , the blocking part 1231 is separated from the extension piece 1222 , and the striker is released to complete one blow.
  • the first matching portion 1232 includes a first outer abutting surface 1236
  • the second matching portion 1241 includes a second outer abutting surface 1236
  • the locking member 123 is provided with a first reset member 1233 .
  • the second matching portion 1241 is completely disengaged from the first matching portion 1232, and the blocking portion 1231 is separated from the extension member 1222.
  • the locking member 123 is in the second state
  • the piston is in the released state
  • the striker is in the released state.
  • the first matching portion 1232 produces a movement tendency to return to the first state (ie, counterclockwise rotation) under the action of the first reset member 1233.
  • the first outer abutting surface 1236 and the second outer abutting surface 1248 are in contact with each other and generate friction to prevent the locking member 123 from rotating counterclockwise, so that the preventing portion 1231 remains relatively stationary during the striking process of the striker 122, and interacts with the locking member 123.
  • a space is left between the extension pieces 1222 , so as to avoid interference to the extension pieces due to the obstruction of the blocking portion 1231 , so as to achieve a smooth hitting process of the striker 122 .
  • the locking member 123 is provided with a first restoring member 1233 , and the first restoring member 1233 is used to bias the locking member 123 to return to the first state.
  • the striker 122 completes one stroke
  • the piston 121 is pushed back to the initial position under the driving of the driving mechanism 130.
  • the blocking part 1231 is released from the contact with the extension part 1222, and the first reset part is provided for the first matching part.
  • the force of the counterclockwise rotation of the part 1232 enables the first matching part 1232 to rotate counterclockwise to the position where it is re-matched with the second matching part 1241 under the action of the first reset member 1233.
  • the transmission pin 131 can push the unlocking part 1242 counterclockwise, so that the second matching part 1241 can actively re-engage with the first matching part 1232, at this time, the locking member 123 returns from the second state to the first state, so that the blocking part 1231
  • the end of the extension piece 1222 is re-conflicted to complete the re-holding of the striker 122 .
  • the rotation of the transmission member 124 may be completed by the driving mechanism 130, or may be completed by other reset structures.
  • the transmission member 124 is provided with a return portion 1246, and the driving mechanism 130 drives the crank 132 to rotate counterclockwise.
  • the transmission pin 131 collides with the return portion 1246 , so that the transmission member 124 rotates counterclockwise, and returns to the state in which the second matching portion 1241 and the first matching portion 1232 are engaged with each other.
  • the first restoring member 1233 may be a spring, a torsion spring, elastic rubber, elastic metal sheet, or the like.
  • the transmission member 124 is provided with a second reset member 1244 , and the second reset member 1244 is used for biasing the transmission member 124 to maintain the matching state with the first matching portion 1232 .
  • the transmission member 124 is kept in a state of re-engagement with the locking member 123 under the action of the second reset member 1244 .
  • the second restoring member 1244 may be a spring, a torsion spring, elastic rubber, elastic metal sheet, or the like.
  • a transmission device 133 is provided between the output shaft of the driving mechanism 130 and the transmission member 124 .
  • the driving mechanism 130 drives the unlocking portion 1242 to move through the transmission device 133 .
  • the transmission device 133 may have various structures, as long as it can transmit the power from the driving mechanism 130 to the unlocking portion 1242 and make the unlocking portion 1242 perform corresponding actions.
  • the transmission device 133 includes a crank 132 connected with the output shaft of the driving mechanism 130 , and a transmission pin 131 connected with the crank 132 .
  • the transmission pin 131 drives the unlocking portion 1242 to move under the action of the driving mechanism 130 . It can be seen from this that, in the process of driving the first matching portion 1232 to disengage from the second matching portion 1241, in this embodiment, the transmission pin 131 directly acts on the unlocking portion 1242 on the transmission member 124, so that the transmission member 124 directly acts , This effectively simplifies the transmission parts, reduces the influence of the cumulative tolerance on the transmission efficiency, improves the reliability of the transmission structure, and reduces the difference in the nailing force of the whole machine.
  • the nail gun 100 includes a guide mechanism 140 and a nail feeder 150 .
  • the guide mechanism 140 is installed on the gun body 110 , and the guide mechanism 140 is provided with a nail groove 141 and a guide groove 142 .
  • the striker 122 can extend into the nail groove 141 .
  • the extension piece 1222 can extend into the guide groove 142 .
  • the nail feeder 150 is installed on the guide mechanism 140 , and the nail feeder 150 is used for providing fastening elements into the nail groove 141 . In this way, a stable row of staples is provided for the staple groove 141 by the staple feeder 150 .
  • the striking of the striker 122 is made more stable by the guiding mechanism 140, which is beneficial to ensure the consistency of the nailing force of the whole machine.
  • the blocking portion 1231 is detachably connected to the middle portion 1234 .
  • the blocking portion 1231 is also detachably connected with a force-bearing structure.
  • the force-bearing structure is a steel sleeve.
  • the extension piece 1222 directly interferes with the steel sleeve, which is beneficial to reduce the wear of the preventing portion 1231 .
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

一种钉枪（100），在打钉之前，传动件（124）与锁定件（123）配接，即锁定件（123）处于第一状态，此时活塞（121）保持于蓄能位置。接着，在驱动机构（130）的作用下，传动件（124）发生动作与锁定件（123）脱离配接，使得锁定件（123）处于第二状态，此时活塞（121）将从蓄能位置上被释放。瞬间释放的能量推动活塞（121）带动撞针（122）一起在工作腔（111）内移动，打击紧固元件(如钉子)，使之高速射出，以完成打钉作业。由于本钉枪（100）利用锁定件（123）与活塞（121）上的延伸件（1222）配合，实现活塞（121）的锁定功能，因此，在锁定过程中无需在撞针（122）上开口，使得撞针（122）结构保持完整，有效降低或者避免对撞针（122）结构强度的影响，保证钉枪（100）稳定运行。同时，在储能过程中，活塞（121）上所受的压缩力在延伸件（1222）与锁定件（123）之间传递，不会传递至撞针（122）上，保证撞针（122）结构保持稳定。

Description

钉枪 技术领域
本发明涉及打钉工具技术领域，特别是涉及钉枪。
背景技术
钉枪，又称射钉器，利用瞬间释放的能量推动撞针做锤击运动，将紧固元件从弹夹内高速射出，以完成物体的固定。其根据驱动源的不同，可分为电动钉枪、气动钉枪、手动钉枪等。
部分钉枪主要包括枪体、撞针、保持机构、动力源及两个活塞。在工作过程中通过保持机构锁定撞针，使得其中一个活塞无法滑动；接着通过动力源推动另一个活塞，使得两个活塞之间的气体被压缩。待动力源推动活塞滑动至一定位置时，打开保持机构，解锁撞针，使得撞针在高压的气体作用下高速推出，锤击在紧固元件上，以使紧固元件能高速射出。
传统的钉枪通常采用阀门控制气流或者机械式锁撞针的方式，锁撞针通常通过在撞针表面开个缺口，将保持机构一侧卡在缺口内，以实现撞针的锁定。然而，缺口对撞针结构强度影响较大，导致撞针所使用的材料加工工艺要求较为苛刻。
发明内容
基于此，有必要提供一种钉枪，降低或者避免对撞针结构强度的影响，保证钉枪稳定运行。
一种钉枪，包括：驱动机构；枪体，所述枪体内设有工作腔；活塞装置，设置于所述工作腔内，所述活塞装置上设置有撞针，所述活塞装置上还设置有延伸件，所述活塞装置能够通过所述延伸件被保持于蓄能位置或者从蓄能位置上释放沿所述工作腔轴线运动以驱动所述撞针击打紧固元件；控制装置，用于将所述活塞锁定在所述蓄能位置或者使所述活塞从蓄能位置释放；所述控制装置包括锁定件、以及可选择地与所述锁定件配接或脱离配接的传动件，所述锁定件具有第一状态和第二状态，所述锁定件处于第一状态时，所述传动件与所述锁定件配接以使所述锁定件阻止所述延伸件运动，从而阻止所述活塞装置从所述蓄能位置释放，所述锁定件处于第二状态时，所述传动件与所述锁定件脱离配接，所述活塞装置被释放。
上述的钉枪，在打钉之前，传动件与锁定件配接，即锁定件处于第一状态，此时活塞装置保持于蓄能位置。接着，在驱动机构的作用下，传动件发生动作与锁定件脱离配接，使得锁定件处于第二状态，此时活塞装置从蓄能位置上被释放。瞬间释放的能量推动活塞带动撞 针一起在工作腔内移动，打击紧固元件(如钉子)，使之高速射出，以完成打钉作业。由于本钉枪利用锁定件与活塞上的延伸件配合，实现活塞的锁定功能，因此，在锁定过程中无需在撞针上开口，使得撞针结构保持完整，有效降低或者避免对撞针结构强度的影响，保证钉枪稳定运行。同时，在储能过程中，活塞装置上所受的压缩力在延伸件与锁定件之间传递，不会传递至撞针上，这样有效避免撞针因受活塞上的压缩力而导致撞针发生形变，从而使得撞针结构保持稳定。
在其中一个实施例中，所述工作腔包括连通的第一工作腔和第二工作腔，所述活塞装置包括设置在所述第一工作腔内的第一活塞、设置在所述第二工作腔的第二活塞，所述撞针和所述延伸件均设置于所述第一活塞上，所述第一活塞能够通过所述延伸件被保持于蓄能位置或者从蓄能位置上释放沿所述工作腔轴线运动以驱动所述撞针击打紧固元件；所述第二活塞在所述第二工作腔内的运动提供所述第一活塞从蓄能位置上释放的动力。
在其中一个实施例中，所述撞针通过枢轴可活动地设置于所述第一活塞，所述枢轴垂直于所述撞针的延伸方向，所述撞针绕所述枢轴的轴线摆动。
在其中一个实施例中，所述延伸件为一顶杆，所述顶杆的延伸方向与所述撞针的延伸方向一致。
在其中一个实施例中，所述驱动机构为所述传动件提供与所述锁定件相对运动的动力，当所述锁定件处于第一状态时，所述驱动机构驱动传动件，所述传动件与所述锁定件做相对分离的运动，使所述锁定件从第一状态转变为第二状态；当所述锁定件处于第二状态时，所述驱动机构驱动传动件，所述传动件与所述锁定件做相对接合的运动，使所述锁定件从二状态转变为第一状态。
在其中一个实施例中，所述锁定件和所述传动件均可转动的装设在所述工作腔内，所述锁定件包括第一配接部，所述传动件包括第二配接部，所述第一配接部和所述第二配接部通过转动实现配接或脱离配接，从而使所述锁定件和所述传动件实现配接或脱离配接。
在其中一个实施例中，所述第一配接部包括第一内抵接面和第一外抵接面，所述第二配接部包括第二内抵接面和第二外抵接面，所述第一配接部与所述第二配接部配接时，所述第一内抵接面与所述第二内抵接面抵接，以使所述第一配接部与所述第二配接部保持配接状态；所述第一配接部与所述第二配接部脱离配接时，所述第一外抵接面与所述第二外抵接面抵接，以阻止所述锁定件以返回第一状态的趋势运动。
在其中一个实施例中，所述锁定件还包括：阻止部，所述第一配接部与所述传动件配接时所述阻止部与所述延伸件抵接以阻止所述延伸件运动；中间部，连接所述第一配接部和所述阻止部，所述第一配接部与所述阻止部能通过所述中间部沿着同一逆时针或顺时针方向转 动。
在其中一个实施例中，所述中间部与所述延伸件分别位于撞针相对的两侧。
在其中一个实施例中，所述锁定件还包括第一复位件，当所述第一配接部与所述第二配接部脱离配接时，所述第一复位件用于偏压所述锁定件，使所述锁定件回复第一状态。
在其中一个实施例中，所述传动件还包括：解锁部，能够由所述驱动机构驱动以带动所述第二配接部转动。
在其中一个实施例中，所述传动件还包括第二复位件，所述第二复位件用于偏压所述传动件使其与所述锁定件保持配接状态。
在其中一个实施例中，所述驱动机构的输出轴与所述传动件之间设有传动装置，所述驱动机构通过所述传动装置驱动所述传动件运动，所述传动装置包括：曲柄，与所述驱动机构的输出轴连接，在所述驱动机构的驱动下旋转；传动销，与所述曲柄连接，在所述驱动机构的作用下，与所述传动件接触并带动传动件转动。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一个实施例中所述的钉枪结构示意图一；
图2为一个实施例中所述的钉枪结构剖视图；
图3为一个实施例中所述的钉枪结构示意图二；
图4为一个实施例中所述的锁定状态时控制装置结构示意图一；
图5为一个实施例中所述的锁定状态时控制装置结构示意图二；
图6为一个实施例中所述的即将脱离时控制装置结构示意图；
图7为一个实施例中所述的逐渐脱离时控制装置结构示意图；
图8为一个实施例中所述的完全脱离时控制装置结构示意图；
图9为一个实施例中所述的完全脱离后控制装置结构示意图；
图10为一个实施例中所述的回归复位时控制装置结构示意图；
图11为一个实施例中所述的回归复位后控制装置结构示意图；
图12为一个实施例中所述的撞针与阻止部留出空隙时的结构示意图；
图13为一个实施例中所述的撞针与延伸件的结构示意图；
图14为一个实施例中所述的锁定状态时控制装置侧视图；
图15为另一个实施例中所述的锁定状态时控制装置结构示意图。
100、钉枪；110、枪体；111、工作腔；1111、第一工作腔；1112、第二工作腔；120、控制装置；121、活塞；1211、第一活塞；1212、第二活塞；122、撞针；1221、枢轴；1222、延伸件；123、锁定件；1231、阻止部；1232、第一配接部；1233、第一复位件；1234、中间部；1235、第一内抵接面；1236、第一外抵接面；124、传动件；1241、第二配接部；1242、解锁部；1243、转动支点；1244、第二复位件；1245、转轴；1246、回位部；1247、第二内抵接面；1248、第二外抵接面；127、摆杆；128、连杆；130、驱动机构；131、传动销；132、曲柄；133、传动装置；140、导向机构；141、钉槽；142、导槽；150、供钉器。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
在一个实施例中，请参考图1至图4，一种钉枪100，包括：驱动机构130、枪体110、活塞121及控制装置120。枪体110内设有工作腔111。活塞121设置于工作腔111内，活塞121上设置有撞针122，活塞121能够被保持于蓄能位置或者从蓄能位置上释放沿工作腔111轴线运动以驱动撞针122击打紧固元件。控制装置120用于将活塞121锁定在蓄能位置或者使活塞121从蓄能位置释放。控制装置120包括设置于活塞121的延伸件1222、锁定件123、以及可选择地与锁定件123配接或脱离配接的传动件124，其中，延伸件1222与撞针122位于活塞的同一侧。锁定件123具有第一状态和第二状态。锁定件123处于第一状态时，传动件124与锁定件123配接以使锁定件123阻止延伸件1222运动，从而阻止活塞121从蓄能位置释放。锁定件123处于第二状态时，传动件124与锁定件123完全脱离配接，此时所述活塞121被释放。
本实施例中，所述锁定件123设有第一配接部1232，所述传动件124设有第二配接部1241；所述第一配接部1232包括第一内抵接面1235，所述第二配接部1241包括第二内抵接面1247，上述的钉枪100在打钉之前，传动件124与锁定件123配接，所述第一内抵接面1235和第二内抵接面1247抵接，即锁定件123处于第一状态，此时活塞121保持于蓄能位置。接着，在驱动机构130的作用下，传动件124发生动作与锁定件123脱离配接，使得锁定件123处于第二状态，此时活塞121从蓄能位置上被释放。瞬间释放的能量推动活塞121带动撞针122 一起在工作腔111内移动，打击紧固元件(如钉子)，使之高速射出，以完成打钉作业。由于本钉枪100利用锁定件123与活塞121上的延伸件1222配合，实现活塞121的锁定功能，因此，在锁定过程中无需在撞针122上开口，使得撞针122结构保持完整，有效降低或者避免对撞针122结构强度的影响，保证钉枪100稳定运行。同时，在储能过程中，活塞121上所受的压缩力在延伸件1222与锁定件123之间传递，不会传递至撞针122上，这样有效避免撞针122因受活塞121上的压缩力而导致撞针122发生形变，从而使得撞针122结构保持稳定。
本实施例中，所述延伸件优选的为一顶杆，所述顶杆与活塞121固定连接，可选的，所述延伸件还可为一种杆状物，如圆台、锥台、长方体等。
需要说明的是，本实施例的活塞121数量可为一个，也可为两个以上。当活塞121为一个时，钉枪100则为单缸打钉设备。当活塞121为两个时，钉枪100为双缸打钉设备。
可选地，驱动机构130可采用电动蓄能驱动，例如直流电机或者交流电机；也可为气缸蓄能、化学蓄能等驱动设备。其中，当驱动机构130为电机时，钉枪100则为电动钉枪；当驱动机构130为气动驱动时，钉枪100则为气动钉枪。同时，驱动机构130与传动件124之间的传动装置133有多种，比如：驱动机构130与传动件124之间直接传动；也可间接传动，比如：两者之间连接有连杆结构、双连杆结构、三连杆结构或者更多连杆结构等。
还需说明的是，锁定件123处于第二状态时，锁定件123在延伸件1222的驱动下运动方式有多种，比如：锁定件123转动安装在枪体110内；或者，锁定件123滑动安装在枪体110内等。其中，当锁定件123以滑动方式安装在枪体110内时，锁定件123可通过滑块与导轨结构配合实现安装。此时锁定件123在延伸件1222的推动下会沿着远离撞针122的方向滑开，当然，为了便于推开，锁定件123上可设置倾斜面。同样，传动件124在枪体110内的活动方式也有多种实现方式，比如：传动件124转动安装在枪体110内；或者，传动件124滑动安装在枪体110内等。其中，当传动件124以滑动方式安装在枪体110内时，传动件124可通过滑块与导轨结构配合实现安装，此时传动件124会在驱动机构130的作用下被滑开。
进一步地，请参考图2与图4，工作腔111包括连通的第一工作腔1111和第二工作腔1112。活塞121包括设置在第一工作腔1111内的第一活塞1211、设置在第二工作腔1112的第二活塞1212。撞针122和延伸件1222均设置于第一活塞1211上。延伸件1222可随第一活塞1211沿第一工作腔1111的轴线运动。第一活塞1211能够被保持于蓄能位置或者从蓄能位置上释放沿第一工作腔1111轴线运动以驱动撞针122击打紧固元件。由此可知，在打钉过程中，启动驱动机构130，驱使第二活塞1212在第二工作腔1112内由第二位置向第一位置滑动。由于传动件124与锁定件123之间处于配接状态，因此，第一活塞1211在延伸件1222与锁定件123配合作用下保持不动状态，使得第一活塞1211与第二活塞1212之间的气体被压缩， 处于储能状态。随着第二活塞1212移动至第一位置或接近第一位置时，驱动机构130通过传动装置133驱动传动件124运动，控制传动件124与锁定件123之间的配接脱开，从而允许锁定件123具有枢转空间，使得锁定件123处于可活动状态。失去锁定件123的支撑作用下，第一活塞1211与第二活塞1212之间的气压能量瞬间释放，推动第一活塞1211带动撞针122一起在第一工作腔1111内移动，使得紧固元件(如钉子)被高速射出，以完成打钉作业。
需要说明的是，第二活塞1212在第二工作腔1112内具有第一位置与第二位置，第二位置相比于第一位置更靠近驱动机构130设置或者更远离第一工作腔1111和第二工作腔1112连通位置设置。当驱动机构130驱使第二活塞1212运动时，第二活塞1212由第二位置向第一位置滑动。其中，第二活塞1212移动至第一位置或者近似第一位置时，传动件124与锁定件123之间脱离配接。
在一个实施例中，请参考图4，延伸件1222的延伸方向与撞针122的延伸方向一致。使得延伸件1222在壳体内的布置与撞针122的布置一致，避免壳体内增加延伸件1222结构而对撞针122结构造成干涉，保证撞针122结构稳定运行。
需要说明的是，延伸件1222的延伸方向与撞针122的延伸方向一致应理解为延伸件1222的延伸方向与撞针122的延伸方向可为平行设置；当然也可相互成一定角度的夹角，但两者的延伸方向趋势需保持一致。
在一个实施例中，请参考图4与图13，撞针122通过枢轴1221可活动地设置于第一活塞1211。所述枢轴1221垂直于所述撞针122的延伸方向，所述撞针122绕所述枢轴1221的轴线摆动。由此可知，本实施例的撞针122相对于第一活塞1211的运动为复合运动，使得撞针122在第一活塞1211上的结构保持活动状态，这样能有效解决撞针122被锁定后而导致延伸件1222在枪体110内发生过定位现象(如：延伸件1222与枪体110内的铜套之间的过定位现象)。此外，将撞针122可活动地装设在第一活塞1211上，也有利于方便撞针122在第一活塞1211上的装配，提高钉枪100的组装效率。
进一步地，请参考图13，撞针122的摆动角度为-2°～2°，如此，通过合理控制撞针122在第一活塞1211上的摆动角度，使得撞针122既在第一活塞1211上保持浮动状态，又避免在第一活塞1211上过于摆动而导致打击动作不稳。
在一个实施例中，请参考图13，撞针122的运动位移为0.01mm～0.11mm。同样合理控制撞针122在第一活塞1211上的移动位移，使得撞针122既在第一活塞1211上保持浮动状态，又避免在第一活塞1211上过于移动而导致打击动作不稳。
在一个实施例中，请参考图4、图8，锁定件123包括第一配接部1232和用于与延伸件1222抵接的阻止部1231。传动件124可选择地与第一配接部1232配接或者脱离配接，当传 动件124由驱动机构130驱动时，第一配接部1232与传动件124脱离配接。在打钉过程中，以双缸打钉设备为例说明，启动驱动机构130，驱使第二活塞1212在第二工作腔1112内滑动。由于第一配接部1232与传动件124之间处于配接状态，因此，第一活塞1211在延伸件1222与阻止部1231配合作用下保持不动状态，即阻止部1231处于第一状态。此时第一活塞1211与第二活塞1212之间的气体被压缩，处于储能状态。随着第二活塞1212移动至第一位置时，驱动机构130触发传动件124动作，控制第一配接部1232与传动件124脱离配接，此时阻止部1231由第一状态切换至第二状态。失去阻止部1231的支撑作用下，第一活塞1211与第二活塞1212之间的气压能量瞬间释放，推动第一活塞1211带动撞针122一起在第一工作腔1111内移动，使得排钉被高速射出，以完成打钉作业。
需要说明的是，第一配接部1232与阻止部1231可直接连接为一体结构；也可间接连接，比如：锁定件123还包括中间部1234，第一配接部1232与阻止部1231间隔设置于中间部1234上。
在一个实施例中，请参考图5、图14，中间部1234与延伸件1222分别位于撞针122的相对两侧。阻止部1231横跨撞针122设置，这样使得延伸件1222与阻止部1231之间作用的位置和中间部1234所在位置分隔开，使得钉枪100结构分布合理，避免结构过于集中分布而易造成干涉。
在其他实施例中，中间部1234与延伸件1222位于撞针122的同一侧上。
在一个实施例中，请参考图6，驱动机构130驱动曲柄132逆时针旋转至传动销131与解锁部1242接触，传动销131向解锁部1242施加一个作用力，此时传动件124与锁定件123处于即将相对运动的状态(即将脱离)，即解锁部1242即将逆时针旋转，以允许第二配接部1241与第一配接部1232开始脱离配接。需要说明的是，此时阻止部1231仍旧处于静止状态，且即将顺时针旋转，以释放所述延伸件1222，使撞针122转变为击打状态。
在一个实施例中，请参考图6、7、8，锁定件123与传动件124均可转动地装设在枪体110内。传动件124上设有第二配接部1241和解锁部1242。第二配接部1241可选择地与第一配接部1232配接或者脱离配接，驱动机构130驱动解锁部1242运动。如此，在解锁过程中，驱动机构130驱动解锁部1242运动，使得传动件124在枪体110内转动，保证第二配接部1241脱离与第一配接部1232配接。
具体地，解锁部1242与第二配接部1241分别位于传动件124的转动支点1243的相对两侧。图7处于逐渐脱离配接的过程，当驱动机构130作用在解锁部1242上时，解锁部1242被触发开始动作，使得两侧上的解锁部1242与第二配接部1241分别绕转动支点1243开始转动，从而使得第一配接部1232与第二配接部1241逐渐脱离配接，允许延伸件1222驱动阻止 部1231绕中间部1234的轴线转动，当第一配接部1232与第二配接部1241脱离配接时阻止部1231由第一状态切换至第二状态，使得撞针122处于击打位置，瞬间击打紧固元件，使得紧固元件高速射出。其中，第一配接部1232与第二配接部1241可为逐渐脱离。随着驱动机构130的继续驱动，第二配接部1241绕转动支点1243也继续转动，此时，随着第一配接部1232与第二配接部1241之间逐渐脱离，阻止部1231也被延伸件1222逐渐转动顶开。
需要说明的是，如图7所示，驱动机构130触发解锁部1242动作，控制第一配接部1232与第二配接部1241逐渐脱离，其中逐渐脱离的实现方式可为：第一配接部1232与第二配接部1241之间的咬合较深，比如：第一配接部1232为卡钩，第二配接部1241为卡槽，在锁定过程中，卡钩完全卡入卡槽中等。这样使得阻止部1231被完全顶开之前也具有运动空间，即撞针122被瞬间释放之前，阻止部1231具有一定的转动空间。同时，第一位置在第二工作腔1112内的具体位置可根据实际产品和用户所需而定。比如：第一位置设定为与瞬间击打位置之间距离2mm，即第二活塞1212从第一位置上继续前移2mm可触发撞针122击打动作。其中，第二活塞1212移动该2mm的位移对应为延伸件1222从开始顶开阻止部1231到完全顶开阻止部1231的动作。
具体地，请参考图4，传动件124的转动支点1243上设有转轴1245，传动件124通过转轴1245转动式装设在枪体110内。
具体地，请参考图4，第二配接部1241、传动件124及解锁部1242为一体化结构，即，传动件124一端为第二配接部1241，传动件124另一端为解锁部1242。
可选地，第一配接部1232为槽或者孔状结构，第二配接部1241为凸状结构；或者，第一配接部1232为凸状结构，第二配接部1241为槽或者孔状结构；又或者，第一配接部1232为导磁或者磁性结构，第二配接部1241为电磁铁结构。另外，第一配接部1232与阻止部1231在中间部1234的高度方向上间隔分布；也可位于中间部1234的同一高度上，即，第一配接部1232与阻止部1231为一体化结构，请参考图15。
具体地，请参考图14，第一配接部1232为卡钩。第二配接部1241为卡槽。卡钩与卡槽啮合。
可选地，驱动机构130与解锁部1242之间的传动结构有多种，比如：驱动机构130与传动件124之间直接传动，比如：通过驱动机构130的输出轴作用在解锁部1242上；也可间接传动，比如：两者之间连接有连杆结构、双连杆结构、三连杆结构或者更多连杆结构等。其中，请参考图15，驱动机构130与解锁部1242之间连接有双连杆结构时，摆杆127可转动装设在枪体110内，连杆128一端转动连接于摆杆127上，连杆128另一端转动连接于解锁部1242上，在解锁过程中，驱动机构130作用在摆杆127一端即可实现第一配接部1232与 第二配接部1241脱离。
在一个实施例中，请参考图8、图9，当所述传动销131推动解锁部1242逆时针旋转后，所述第二配接部1241与所述第一配接部1232完全脱离配接，此时随着第一配接部1232与第二配接部1241之间逐渐脱离，阻止部1231也被延伸件1222逐渐转动顶开，第一配接部1232与阻止部1231一起顺时针旋转，阻止部1231与延伸件1222分离，所述撞针被释放后完成一次击打。
进一步的，请参考图5、图8至10、图12，本实施例中所述第一配接部1232包括第一外抵接面1236，所述第二配接部1241包括第二外抵接面1248，所述锁定件123上设有第一复位件1233。在传动销131带动的作用下，第二配接部1241与第一配接部1232完全脱离，阻止部1231与延伸件1222分离，此时锁定件123处于第二状态，活塞处于释放状态，撞针122处于击打状态，当传动销131与传动件124脱离时，第一配接部1232在第一复位件1233的作用下产生返回第一状态(即逆时针旋转)的运动趋势，此时，第一外抵接面1236与第二外抵接面1248互相接触且产生摩擦，以阻止所述锁定件123逆时针旋转，从而使阻止部1231在撞针122击打过程中保持相对静止，并与延伸件1222之间留出空隙，从而避免因阻止部1231的阻碍而对延伸件产生干扰，实现撞针122击打过程的顺畅。
进一步地，请参考图10、图11，锁定件123上设有第一复位件1233，第一复位件1233用于偏压锁定件123使其回复第一状态。当撞针122完成一次击打时，活塞121在驱动机构130的驱动下回推至初始位置，此时，阻止部1231脱离与延伸件1222的接触，所述第一复位件提供给第一配接部1232逆时针旋转的力，使第一配接部1232在第一复位件1233的作用下能够逆时针转动到与第二配接部1241重新匹配的位置，在曲柄132的带动下，传动销131能够将解锁部1242逆时针推动，使第二配接部1241能主动的重新与第一配接部1232啮合，此时锁定件123从第二状态回复到第一状态，从而使阻止部1231重新抵触在延伸件1222的一端，以完成撞针122的重新保持。其中，传动件124的转动方式可通过驱动机构130完成，也可通过其他复位结构完成。优选的，请参考图10、图11，传动件124上设有回位部1246，驱动机构130驱动曲柄132逆时针旋转，当传动销131自开始转动起，到逆时针旋转近似360°时，传动销131与回位部1246抵触，使传动件124逆时针旋转，恢复到第二配接部1241与第一配接部1232配接的状态。
可选地，第一复位件1233可为弹簧、扭簧、弹性橡胶、弹性金属片等。
在一个实施例中，请参考图4，传动件124上设有第二复位件1244，第二复位件1244用于偏压传动件124使其与第一配接部1232保持配接状态。当阻止部1231重新抵触在延伸件1222上时，传动件124在第二复位件1244的作用下，保持与锁定件123重新配接的状态。
可选地，第二复位件1244可为弹簧、扭簧、弹性橡胶、弹性金属片等。
在一个实施例中，请参考图4，驱动机构130的输出轴与传动件124之间设有传动装置133。驱动机构130通过传动装置133驱动解锁部1242运动。其中，传动装置133可有多种结构，只需能将驱动机构130上的动力传递至解锁部1242上，并使得解锁部1242作出相应动作即可。
进一步地，请参考图4，传动装置133包括与驱动机构130的输出轴连接的曲柄132、与曲柄132连接的传动销131。传动销131在驱动机构130的作用下驱动解锁部1242运动。由此可知，在驱使第一配接部1232与第二配接部1241之间脱离过程中，本实施例通过传动销131直接作用于传动件124上的解锁部1242，使得传动件124直接动作，这样有效简化传动零部件，降低累计公差对传动效率的的影响，提高了传动结构的可靠性，减少整机打钉力差异性。
在一个实施例中，请参考图2，钉枪100包括导向机构140与供钉器150。导向机构140装设于枪体110上，导向机构140内设有钉槽141与导槽142。撞针122能伸入钉槽141内。延伸件1222能伸入导槽142内。供钉器150装设于导向机构140，供钉器150用于向钉槽141内提供紧固元件。如此，通过供钉器150为钉槽141提供稳定的排钉。同时，通过导向机构140使得撞针122的打击更加平稳，有利于保证整机打钉力的一致性。
在一个实施例中，阻止部1231可拆卸连接在中间部1234上。当阻止部1231发生磨损时，无需将整个中间部1234进行更换，只需将阻止部1231从中间部1234上拆除即可，这样极大提升钉枪100零部件的维修效率，减少维修成本。另外，阻止部1231上也可拆卸连接有受力结构，比如：受力结构为钢套，在保持过程中，延伸件1222则直接抵触在钢套上，这样有利于降低阻止部1231的磨损。同时在维修过程中，也只需更换钢套结构即可，进一步提高钉枪100的维修效率。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺 时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。

Claims (13)

  1. 一种钉枪，包括：
    驱动机构；
    枪体，所述枪体内设有工作腔；
    活塞装置，设置于所述工作腔内，所述活塞装置上设置有撞针，所述活塞装置上还设置有延伸件，所述活塞装置能够通过所述延伸件被保持于蓄能位置或者从蓄能位置上释放沿所述工作腔轴线运动以驱动所述撞针击打紧固元件；
    控制装置，用于将所述活塞装置锁定在所述蓄能位置或者使所述活塞装置从蓄能位置释放；
    其特征在于：所述控制装置包括锁定件、以及可选择地与所述锁定件配接或脱离配接的传动件，所述锁定件具有第一状态和第二状态，所述锁定件处于第一状态时，所述传动件与所述锁定件配接以使所述锁定件阻止所述延伸件运动，从而阻止所述活塞装置从所述蓄能位置释放，所述锁定件处于第二状态时，所述传动件与所述锁定件脱离配接，所述活塞装置被释放。
  2. 根据权利要求1所述的钉枪，其特征在于，所述工作腔包括连通的第一工作腔和第二工作腔，所述活塞装置包括设置在所述第一工作腔内的第一活塞、设置在所述第二工作腔的第二活塞；
    所述撞针和所述延伸件均设置于所述第一活塞上，所述第一活塞能够通过所述延伸件被保持于蓄能位置或者从蓄能位置上释放沿所述工作腔轴线运动以驱动所述撞针击打紧固元件；
    所述第二活塞在所述第二工作腔内的运动提供所述第一活塞从蓄能位置上释放的动力。
  3. 根据权利要求2所述的钉枪，其特征在于，所述撞针通过枢轴可活动地设置于所述第一活塞，所述枢轴垂直于所述撞针的延伸方向，所述撞针绕所述枢轴的轴线摆动。
  4. 根据权利要求1所述的钉枪，其特征在于，所述延伸件为一顶杆，所述顶杆的延伸方向与所述撞针的延伸方向一致。
  5. 根据权利要求1所述的钉枪，其特征在于，所述驱动机构为所述传动件提供与所述锁定件相对运动的动力，当所述锁定件处于第一状态时，所述驱动机构驱动传动件，所述传动件与所述锁定件做相对分离的运动，使所述锁定件从第一状态转变为第二状态；当所述锁定件处于第二状态时，所述驱动机构驱动传动件，所述传动件与所述锁定件做相对接合的运动，使所述锁定件从第二状态转变为第一状态。
  6. 根据权利要求1所述的钉枪，其特征在于，所述锁定件和所述传动件均可转动的装设在所述工作腔内，所述锁定件包括第一配接部，所述传动件包括第二配接部，所述第一配接部和所述第二配接部通过转动实现配接或脱离配接，从而使所述锁定件和所述传动件实现配 接或脱离配接。
  7. 根据权利要求6所述的钉枪，其特征在于，所述第一配接部包括第一内抵接面和第一外抵接面，所述第二配接部包括第二内抵接面和第二外抵接面，所述第一配接部与所述第二配接部配接时，所述第一内抵接面与所述第二内抵接面抵接，以使所述第一配接部与所述第二配接部保持配接状态；所述第一配接部与所述第二配接部脱离配接时，所述第一外抵接面与所述第二外抵接面抵接，以阻止所述锁定件以返回第一状态的趋势运动。
  8. 根据权利要求6所述的钉枪，其特征在于，所述锁定件还包括：
    阻止部，所述第一配接部与所述传动件配接时所述阻止部与所述延伸件抵接以阻止所述延伸件运动；
    中间部，连接所述第一配接部和所述阻止部，所述第一配接部与所述阻止部能通过所述中间部沿着同一逆时针或顺时针方向转动。
  9. 根据权利要求8所述的钉枪，其特征在于，所述中间部与所述延伸件分别位于撞针相对的两侧。
  10. 根据权利要求6所述的钉枪，其特征在于，所述锁定件还包括第一复位件，当所述第一配接部与所述第二配接部脱离配接时，所述第一复位件用于偏压所述锁定件，使所述锁定件回复第一状态。
  11. 根据权利要求6所述的钉枪，其特征在于，所述传动件还包括：
    解锁部，能够由所述驱动机构驱动以带动所述第二配接部转动。
  12. 根据权利要求6所述的钉枪，其特征在于，所述传动件还包括第二复位件，所述第二复位件用于偏压所述传动件使其与所述锁定件保持配接状态。
  13. 根据权利要求1所述的钉枪，其特征在于，所述驱动机构的输出轴与所述传动件之间设有传动装置，所述驱动机构通过所述传动装置驱动所述传动件运动，所述传动装置包括：
    曲柄，与所述驱动机构的输出轴连接，在所述驱动机构的驱动下旋转；
    传动销，与所述曲柄连接，在所述驱动机构的作用下，与所述传动件接触并带动传动件转动。
PCT/CN2022/072696 2021-01-20 2022-01-19 钉枪 WO2022156698A1 (zh)

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CN109605285A (zh) * 2019-01-31 2019-04-12 台州市钉霸电动工具有限公司 一种打钉枪
US20190283225A1 (en) * 2016-12-09 2019-09-19 Nanjing Chervon Industry Co., Ltd. Nail gun
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US20180222028A1 (en) * 2015-06-26 2018-08-09 Huading Zhang A Nailing Machine
CN107717875A (zh) * 2016-08-10 2018-02-23 南京德朔实业有限公司 动力工具
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