WO2023071258A1 - 一种易维修型射钉枪 - Google Patents

一种易维修型射钉枪 Download PDF

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Publication number
WO2023071258A1
WO2023071258A1 PCT/CN2022/101893 CN2022101893W WO2023071258A1 WO 2023071258 A1 WO2023071258 A1 WO 2023071258A1 CN 2022101893 W CN2022101893 W CN 2022101893W WO 2023071258 A1 WO2023071258 A1 WO 2023071258A1
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WO
WIPO (PCT)
Prior art keywords
nail
force
rod
shooting
easy
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Application number
PCT/CN2022/101893
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English (en)
French (fr)
Inventor
黄锦全
杨明军
厉敏
宋中海
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台州市大江实业有限公司
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Application filed by 台州市大江实业有限公司 filed Critical 台州市大江实业有限公司
Publication of WO2023071258A1 publication Critical patent/WO2023071258A1/zh

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    • 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
    • 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
    • B25C1/02—Hand-held nailing tools; Nail feeding devices operated by manual power
    • 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
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • the invention belongs to the technical field of fastening tools, in particular to an easy-to-maintain nail gun.
  • Nail guns are widely used in fastening connections between wood boards, metal boards, and cement boards, and have the characteristics of high nailing force.
  • the nail gun In normal use, the nail gun occasionally has a "staple phenomenon", which makes the nail gun unable to work normally. At this time, there will be pre-pressure inside, which makes it difficult to disassemble and assemble the parts of the nail gun; more seriously, if the operation is not done properly, it will trigger the nail bar to shoot nails, threatening the lives of users or maintenance personnel.
  • the purpose of the present invention is to provide an easy-to-maintain nail gun with simple structure, convenient maintenance and high safety performance.
  • An easy-to-maintain nail gun comprising:
  • the nailing rod has a nailing end and a force receiving end
  • a force supply unit combined with the force-receiving end of the nail-shooting rod, for providing nail-shooting force to the nail-shooting rod;
  • a drive unit used to drive the power supply unit to move and keep it in an energy storage state
  • the drive unit includes a drive motor, the drive motor has a motor shaft, and the protruding end of the motor shaft is provided with a rotating part for the user to manually rotate;
  • the user can rotate the motor shaft through the rotating part to release the energy storage state of the force supply unit.
  • the easy-to-maintain nail gun provided by the present invention can also have such features,
  • It also includes a casing for wrapping the drive unit, the casing is provided with an opening for the insertion of an external tool, the opening is facing the rotating part, and the motor is controlled by the fitting of the external tool and the rotating part. axis of rotation.
  • the easy-to-maintain nail gun provided by the present invention can also have such features,
  • the rotating part is provided with a word groove or a cross groove or an outer hexagonal column or an inner hexagonal groove.
  • the easy-to-maintain nail gun provided by the present invention can also have such features,
  • the drive unit also includes a reducer and a notch gear, the output end of the motor shaft is connected to the input end of the reducer, and the output end of the reducer is provided with the notch gear;
  • a plurality of driving teeth are provided on the side wall of the nail-shooting rod;
  • the outer circumference of the notch gear has a tooth portion for engaging the driving teeth and a notch portion adjacent to the tooth portion.
  • the easy-to-maintain nail gun provided by the present invention can also have such features,
  • the power supply unit includes:
  • the cylinder body is arranged in the nail gun and has a front side and a rear side;
  • a rod seat movably arranged in the cylinder body, and divides the cylinder body into a front chamber and a rear chamber
  • a counteracting component arranged in the rear cavity, is used to counteract the resilience of the power supply spring when the force supply spring rebounds after supplying force;
  • the rod base is connected to the stressed end of the nail-shooting rod.
  • the easy-to-maintain nail gun provided by the present invention can also have such features,
  • the counteracting assembly has an abutting seat that can be in contact with the force supply spring and at least one counteracting elastic piece, and the counteracting elastic piece has an abutting portion for contacting the cylinder body and is in contact with the cylinder body.
  • the matching part matched with the above-mentioned abutment seat.
  • the easy-to-maintain nail gun provided by the present invention can also have such features,
  • the abutting seat is an annular damping sheet
  • the counter elastic member is a compression spring
  • the motor shaft can be reversely rotated by an external tool, so that the notch gear drives the nail shooting rod to move in the direction of nail shooting, thereby releasing the energy storage state of the force supply spring and avoiding errors caused by misoperation.
  • the nail rod in the energy storage state shoots by mistake, ensuring the life safety of maintenance personnel.
  • the pressure-relieving nail gun is more convenient to disassemble, and ordinary users can also perform simple maintenance according to the instructions in the manual, saving the time and energy of finding professional maintenance personnel.
  • an opening is provided on the casing for the insertion of external tools.
  • the opening faces the rotating part, which facilitates the rapid insertion of external tools. Without disassembly, the motor shaft can be reversely rotated to achieve rapid maintenance. .
  • the rotating part is provided with a groove or a cross groove or an external hexagonal column or an internal hexagonal groove, which is convenient for conventional external tools to drive and is beneficial to the maintenance of ordinary users.
  • the power supply spring of the present invention will rebound and hit the counter assembly after the nail is shot.
  • the self deformation of the counter component prolongs the impact time of the power supply spring, so that the resilience of the power supply spring is slowly transferred to the cylinder body
  • the counter component will also be deformed, and can also provide a part of the nailing force to the rod seat and the nailing rod.
  • Fig. 1 is the structural representation of nail gun of the present invention
  • Fig. 2 is a schematic structural view of the force supply unit, the drive unit and the nozzle of the present invention
  • Fig. 3 is a schematic structural view of the force supply unit and the nozzle of the present invention.
  • Fig. 4 is a top view of the force supply unit, the drive unit and the nozzle of the present invention.
  • Fig. 5 is a cross-sectional view of the power supply unit at A-A in Fig. 4 in a natural state;
  • Fig. 6 is a schematic structural view of the force supply unit and the nail-shooting rod of the present invention.
  • Fig. 7 is a schematic structural view of the power supply unit of the present invention without the cylinder body
  • Fig. 8 is a cross-sectional view of the force supply unit, the drive unit and the nozzle at B-B in Fig. 5;
  • 1-power supply unit 2-drive unit; 3-housing; 4-lithium battery module; 5-gun nozzle; 6-nail feeding device;
  • 11-cylinder body 111-rear side; 112-front side; 12-rod seat; 13-nail shooting rod; 131-nail shooting end; Assembly; 151-butting seat; 152-pressure spring; 1521-butting part; 1522-cooperating part; 16-guide rod; 17-buffer member; 18-front elastic gasket;
  • 20-drive platform 21-gap gear; 211-teeth; 212-gap; 22-reducer; 23-drive motor; 231-motor shaft; 2311-rotating part; 24-cam; 25-limit switch; 26-drive teeth;
  • Fig. 1 is a schematic structural view of the nail gun of the present invention.
  • the nail gun includes a nozzle 5 , a nail feeding device 6 , a driving device, a lithium battery module 4 and a casing 3 .
  • the gun nozzle 5 is provided with a firing channel, and has an injection port used as a nail;
  • the nail feeding device 6 has a nail passing channel, and a nail is installed in the nail passing channel, and the firing channel is connected to the nail channel;
  • the rear end of the gun nozzle 5 A driving device for driving the nail is provided.
  • the drive device is wrapped with a casing 3, the rear side of the casing 3 is extended with a handle, the lower end of the handle is equipped with a lithium battery module 4 that provides energy for the drive unit 2, and the upper end of the handle is provided with a nail switch for controlling the drive device.
  • Fig. 2 is a structural schematic view of the force supply unit, the drive unit and the nozzle of the present invention.
  • the drive device includes a force supply unit 1 and a drive unit 2 .
  • the force supply unit 1 is arranged on the rear end of the gun nozzle 5, and is used to provide the power for striking the nail;
  • the drive unit 2 is arranged on one side of the force supply unit 1, and is used to control the force supply unit 1 to impact the nail.
  • Fig. 3 is a schematic structural view of the force supply unit and the gun nozzle of the present invention
  • Fig. 4 is a top view of the force supply unit, the drive unit and the gun nozzle of the present invention
  • Fig. 5 is a cross-sectional view of the force supply unit at A-A in Fig. 4 in a natural state.
  • the force supply unit 1 includes a cylinder body 11 , a rod seat 12 , a nailing rod 13 , a spring assembly, a buffer member 17 and a counter assembly 15 .
  • the cylinder body 11 is made of metal material.
  • the cylinder body 11 has a front side part 112 and a rear side part 111.
  • the front side part 112 and the rear side part 111 can be integrally formed at the front and rear ends of the cylinder body, or can be separately arranged on front and rear ends of the cylinder.
  • This embodiment is set separately, that is, the front and rear ends of the cylinder body 11 are respectively fixed with a front side 112 and a rear side 111 by screws, and the front side 112 is equipped with a gun nozzle 5 .
  • a rod seat 12 and a nail-shooting rod 13 are movable installed inside the cylinder body 11, and the rod seat 12 divides the cylinder body 11 into a front chamber and a rear chamber.
  • the nail-shooting rod 13 has a force-bearing end 132 installed on the rod base 12 and a nail-shooting end 131 protruding from the front side 112 for striking nails.
  • a mounting column extends from the middle of the front end of the rod base 12, and the mounting column is provided with a mounting groove, and the force-bearing end 132 of the nail shooting rod 13 is inserted in the mounting groove, and is fixedly connected by a mounting pin.
  • the nail-shooting end of the nail-shooting rod 13 passes through the front side part 112 and then extends into the firing channel of the gun nozzle 5, and is used for hitting nails.
  • the spring assembly is freely installed between the rod seat 12 and the rear side part 111, and has at least one power supply spring 14 for providing power. That is, the power supply spring 14 abuts between the rod seat 12 and the rear side 111 of the cylinder 11 for providing power to the nail shooting rod 13 .
  • the inner cavity of the cylinder body 11 can be designed as a circle matching the outer diameter of the force supply spring 14 .
  • a guide rod 16 suitable for the inner diameter of the power supply spring 14 can be installed in the cylinder body 11, and each guide rod 16 is fitted with a corresponding power supply spring 14.
  • two symmetrical guide rods 16 distributed parallel up and down are respectively fixed on the front side part 112 and the rear side part 111 of the cylinder body 11, and each guide rod 16 is covered with a Power supply spring 14.
  • the force supply spring 14 When the force supply spring 14 is compressed, after being guided by the inner chamber of the cylinder body 11 or the guide rod 16, the force supply spring 14 can only deform along its own axial direction, preventing it from twisting and deforming outside the axial direction, which is beneficial to improve energy conversion.
  • a counter assembly 15 is mounted on the rear end of the force supply spring 14 , and the counter assembly 15 is disposed in the rear cavity, and forms a buffer space for the deformation of the counter assembly 15 with the rear side 111 .
  • the counter assembly 15 is used to counteract the resilience of the force supply spring 14 .
  • Fig. 6 is a schematic structural view of the force supply unit and the nail-shooting rod of the present invention
  • Fig. 7 is a structural schematic view of the force supply unit of the present invention with the cylinder removed;
  • the abutment assembly 15 has an abutment seat 151 that can abut against the power supply spring 14 and at least one abutment elastic member.
  • the abutment seat 151 is Ring-shaped damping piece
  • the said counter elastic member is a compression spring 152
  • the number is two
  • the compression spring 152 is sleeved on the rear end of the guide rod 16, and is located between the abutting seat 151 and the rear side of the cylinder body 11
  • the abutting portion 1521 of the compression spring 152 abuts against the rear side of the cylinder body 11
  • its matching portion 1562 abuts against the abutting seat 151 .
  • the counter assembly 15 When the force supply spring 14 is compressed to store energy, the counter assembly 15 is also compressed and stores a small amount of energy, which can be used for the force supply spring 14 for nailing, thereby increasing the force of nailing. Since the quality and elastic coefficient of the compression spring 152 are different from those of the power supply spring, the speeds of the two are different during nail shooting. Therefore, the two will collide inside the cylinder, thereby counteracting a part of the power supply spring 14. The elastic force also greatly reduces the movement and vibration effect of the nail gun.
  • a buffer member 17 is provided on the inner wall of the front side portion 112 of the cylinder body 11 , and the outer edge of the buffer member 17 is close to the inner wall of the metal cylinder body 11 .
  • the rod seat 12 hits the buffer member 17, and the buffer member 17 shrinks, and meanwhile the impact force is quickly transmitted to the cylinder body 11, so as to realize rapid transfer and dissipation.
  • both the buffer member 17 and the front elastic washer 18 are made of rubber or elastic plastic.
  • a drive platform 20 is integrally formed on one side of the front side part 112, and a drive unit 2 is arranged on the drive platform 20. Notch gear 21, speed reducer 22 and driving motor 23 on 20.
  • the drive motor 23 has a motor housing and a motor shaft 231, the motor shaft 231 runs through the motor housing, the output end of the motor shaft 231 is connected to the input end of the reducer 22, and the output end of the reducer 22 is equipped with a notch gear 21 , the notched gear 21 has a tooth portion 211 meshing with the driving teeth 26 and a notch portion 212 not meshing with the driving teeth 26 .
  • the working planes where the driving platform 20 and the front side part 112 are located are perpendicular to each other.
  • the driving motor 23 is installed on the lower end surface of the driving platform 20 through the reducer 22
  • the notched gear 21 is installed on the upper end surface of the driving platform 20 .
  • a cam 24 and a limit switch 25 are also arranged above the notch gear 21 , and the cam 24 and the notch gear 21 rotate synchronously. When the convex portion of the cam 24 touches the limit switch 25, the limit switch 25 controls the driving motor 23 to stop rotating.
  • the lithium battery module 4 supplies power to the driving motor 23, and the nailing switch is used to control the driving motor 23 to work.
  • Fig. 8 is a cross-sectional view of the force supply unit, the drive unit and the nozzle at B-B in Fig. 5;
  • the driving tooth 26 is disposed on the side of the nail-shooting rod 13 close to the notch gear 21 , and meshes with the tooth portion 211 of the notch gear 21 .
  • the lengths of all the driving teeth 26 are adapted to the compressed length of the power supply spring 14
  • the number of teeth of the tooth portion 211 is adapted to the number of teeth of all the driving teeth 26 .
  • the tooth portion 211 occupies approximately 3/4 of the circumference of the notch tooth
  • the notch 212 approximately occupies 1/4 of the circumference of the notch tooth. The amount of movement will satisfy the compression of the force supply spring 14 to the nail shooting position.
  • the rotation of the notch gear 21 can drive the nail-shooting rod 13 to move;
  • the rod 13 is in a state where there is no notch gear 21 constrained, that is, nail shooting can be realized.
  • the power supply spring 14 is compressed to a position with enough kinetic energy to drive the nail.
  • the position of the rod seat 12 is defined as a trigger position, and the trigger position is located between the counter assembly 15 and the front side portion 112 .
  • the lever mount 12 can then only move between the trigger position and the front side 112 .
  • the abutment seat 151 contacts the rear side 111 of the cylinder body 11 , and the compression spring 152 is also compressed accordingly, and provides a small part of nail-shooting kinetic energy for the rod seat 12 and the nail-shooting rod 13 .
  • the stored force value of each power supply spring 14 is F
  • the tensile force of each compression spring 152 is f
  • the resultant force 2F+2f.
  • f/F 1/10.
  • the protruding end of the motor shaft 231 is provided with a rotating part 2311 for the user to manually rotate, and the rotating part is provided with a slot or a cross groove or an outer hexagonal column or an inner hexagonal groove.
  • the housing 3 is provided with an opening 31 for the insertion of an external tool.
  • the opening 31 faces the rotating part 2311.
  • the external tool is a hexagonal wrench, a screwdriver, etc., and the external tool is fitted with the rotating part 2311 to realize to the rotation of the motor shaft 231.
  • the motor shaft can be reversely rotated by an external tool, so that the notched gear 21 drives the nail shooting rod 13 to move in the direction of nail shooting, thereby releasing the energy storage state of the force supply spring.
  • the casing 3 at the opening 31 is marked with warning slogans such as "Warning: Make sure to reversely rotate the motor shaft before maintenance!” and the direction of rotation of the motor shaft to remind maintenance personnel to operate correctly and ensure safety.
  • the power supply spring 14 When working for the first time, as shown in FIG. 5 , the power supply spring 14 is in a state of natural extension. Press the nail-shooting switch, the driving motor 23 works, and the notch gear 21 is driven to rotate through the reducer 22. At this time, the teeth 211 of the notch gear 21 and the driving teeth 26 mesh with each other, thereby driving the nail-shooting rod 13 and the rod seat 12 to move backward. And compress power supply spring 14, act on stage clip 152 simultaneously. When the power supply spring 14 reaches the trigger position, the convex portion of the cam 24 above the notch gear 21 touches the limit switch 25, and the driving motor 23 stops working. At this time, the tooth portion 211 of the notch gear 21 close to the notch portion 212 is also engaged with the driving tooth 26 of the nail shooting rod 13 .
  • the driving motor 23 continues to rotate in the same direction, and the gear part of the notch gear 21 will engage the driving tooth 26 of the nail again, and continue to push the nailing rod 13 and the rod seat 12 to move backward, compressing the power supply spring 14, Do work to stage clip 152 simultaneously.
  • the power supply spring 14 reached the maximum compression position, the convex portion of the cam 24 touched the limit switch 25, and the driving motor 23 was stopped, and the trigger position was reached again, getting ready for the next nail shooting.
  • the nail gun includes a nail rod, a force supply unit for providing nail driving power, and a drive unit that drives the force supply unit to strike the nail.
  • the drive unit It includes a drive motor, the drive motor has a motor shaft, the protruding end of the motor shaft is provided with a rotating part for the user to manually rotate, and the rotating part is provided with a word groove or a cross groove or an outer hexagonal column or an inner hexagonal groove.
  • the user can use a conventional external tool to drive the rotating part to rotate the motor shaft to release the energy storage state of the force supply unit, thereby realizing fast, safe and convenient maintenance.
  • the outside of the drive unit is wrapped with a casing, and the casing is provided with an opening for the insertion of an external tool.
  • the opening faces the rotating part. Without disassembling the casing, the external tool and the rotating part are fit together, Therefore, the rotation of the motor shaft can be quickly repaired.
  • the force supply unit includes a cylinder, a rod seat, a nail rod, a spring assembly and a counteracting assembly.
  • the counteracting assembly is installed in the rear cavity, and is used for counteracting when the force supply spring rebounds after supplying force.
  • the power supply spring of the present invention will rebound and hit the counter assembly after the nail is shot, and the self deformation of the counter component prolongs the impact time of the power supply spring, so that the resilience of the power supply spring is slowly transferred to the cylinder body, It greatly reduces the impact force on the cylinder body per unit time, realizes the vibration reduction of the rebounding force spring, prevents it from swaying, and also reduces the effect of subsequent vibrations, ensuring the nail gun to work smoothly. Stability, thereby reducing the labor intensity of the user.
  • the counter component will also be deformed, and can also provide part of the nailing force to the rod seat and the nailing rod.
  • the abutting assembly includes an abutting seat abutting against the rear end of the power supply spring and at least one resisting elastic piece.
  • the contact area of the force spring is beneficial to the vibration reduction of the nail gun.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

一种射钉枪，包括：射钉杆(13)，具有射钉端(131)和受力端(132)；供力单元(1)，与射钉杆(13)的受力端(132)相结合，用于给所述射钉杆(13)提供射钉力；以及驱动单元(2)，用于驱动供力单元(1)移动，并使其处于储能状态；其中，驱动单元(2)包括驱动电机(23)，驱动电机(23)具有电机轴(231)，电机轴(231)的伸出端设有供用户进行人工转动的转动部位(2311)；用户可以通过转动部位(2311)旋转电机轴(231)，解除供力单元(1)的储能状态，避免因操作失误而导致储能状态的射钉杆(13)误射。同时，解除压力的射钉枪更方便拆卸。

Description

一种易维修型射钉枪 技术领域
本发明属于紧固工具技术领域，特指一种易维修型射钉枪。
背景技术
射钉枪被广泛应用于木板、金属板、水泥板之间的紧固连接，其具有射钉力大的特点。在平常使用时，射钉枪偶尔会发生“卡钉现象”，导致射钉枪无法正常使用。此时，内部会存在预压力，导致射钉枪的部件拆装比较困难；更严重的是，如果操作不当，还会触发射钉杆射钉，威胁用户或者维修人员的生命安全。
此时，考虑到安全原因，只能通过专门的维修人员进行维修，用户不可以擅自操作，这非常影响作业的进度。
发明内容
本发明的目的是提供一种结构简单，维修方便，安全性能高的易维修型射钉枪。
本发明的目的是这样实现的：
一种易维修型射钉枪，包括：
射钉杆，具有射钉端和受力端；
供力单元，与所述射钉杆的受力端相结合，用于给所述射钉杆提供射钉力；以及
驱动单元，用于驱动所述供力单元移动，并使其处于储能状态；
其中，所述驱动单元包括驱动电机，所述驱动电机具有电机轴，所述电机轴的伸出端设有供用户进行人工转动的转动部位；
用户可以通过所述转动部位旋转所述电机轴，解除所述供力单元的储能状态。
本发明提供的易维修型射钉枪，还可以具有这样的特征，
还包括用于包裹所述驱动单元的外壳，该外壳上设置有供外部工具伸入的开口，所述开口正对所述转动部位，通过外部工具与转动部位的嵌合，实现对所述电机轴的旋转。
本发明提供的易维修型射钉枪，还可以具有这样的特征，
所述转动部位上设置有一字槽或者十字槽或者外六角柱或者内六角槽。
本发明提供的易维修型射钉枪，还可以具有这样的特征，
其中，所述驱动单元还包括减速器和缺口齿轮，所述电机轴的输出端连接该减速器的输 入端，该减速器的输出端设置有所述缺口齿轮；
所述射钉杆的侧壁上开设有若干个驱动齿；
所述缺口齿轮外周具有用于啮合驱动齿的齿部以及与该齿部相邻的缺口部，当缺口部转动到所述射钉杆一侧时，所述驱动单元解除对所述射钉杆的约束。
本发明提供的易维修型射钉枪，还可以具有这样的特征，
其中，所述供力单元包括：
缸体，设置在所述射钉枪内，具有前侧部和后侧部；
杆座，可移动地设置在所述缸体内，将所述缸体分割为前侧腔和后侧腔
弹簧组件，自由地安装在所述杆座和所述后侧部之间，具有至少一根用于提供所述动力的供力弹簧；以及
抵冲组件，设置在所述后侧腔内，当所述供力弹簧在供力后回弹时，用于抵冲该供力弹簧的回弹力；
其中，所述杆座连接所述射钉杆的受力端。
本发明提供的易维修型射钉枪，还可以具有这样的特征，
其中，所述抵冲组件具有与所述供力弹簧可以相抵接的抵接座以及至少一个抵冲弹性件，该抵冲弹性件具有用于与所述缸体接触的抵接部以及与所述抵接座相配合的配合部。
本发明提供的易维修型射钉枪，还可以具有这样的特征，
其中，所述抵接座为环形减振片，所述抵冲弹性件为压簧。
本发明相比现有技术突出且有益的技术效果是：
1、本发明的产品出现卡钉时，可以通过外部工具反向转动电机轴，使缺口齿轮带动射钉杆朝射钉方向移动，从而解除供力弹簧的储能状态，避免因操作失误而导致储能状态的射钉杆误射，保障维修人员的生命安全。同时，解除压力的射钉枪更方便拆卸，普通用户也可以自己按照说明书的操作，进行简单维修，节约了找专业维修人员的时间和精力。
2、本发明在外壳上设置有供外部工具伸入的开口，所述开口正对所述转动部位，方便外部工具的快速插入，在不拆卸的情况下，反向转动电机轴，实现快速维修。
3、所述转动部位上设置有一字槽或者十字槽或者外六角柱或者内六角槽，方便常规的外部工具驱动，有利于普通用户的维修。
4、本发明的供力弹簧在完成射钉之后会进行回弹并撞击抵冲组件，抵冲组件自身变形延长了供力弹簧撞击时间，使供力弹簧的回弹力缓缓地转移至缸体上，大大减小了单位时间内缸体所受到的冲击力，实现对回弹的供力弹簧进行减振，防止其出现窜动的情况，也降低了之后振颤的效果，保证射钉枪工作的稳定性，从而减轻使用者的劳动强度。与此同时，当供 力弹簧在储能过程中，抵冲组件也会发生形变，还能给杆座以及射钉杆提供一部分射钉力。
附图说明
图1是本发明射钉枪的结构示意图；
图2是本发明供力单元、驱动单元以及枪嘴的结构示意图；
图3是本发明供力单元以及枪嘴的结构示意图；
图4是本发明供力单元、驱动单元以及枪嘴的俯视图；
图5是图4中A-A处供力单元处于自然状态的剖视图；
图6是本发明供力单元和射钉杆的结构示意图；
图7是本发明供力单元去掉缸体的结构示意图；
图8是图5中B-B处供力单元、驱动单元以及枪嘴的剖视图；
图中标号所表示的含义：
1-供力单元；2-驱动单元；3-外壳；4-锂电池模块；5-枪嘴；6-送钉装置；
11-缸体；111-后侧部；112-前侧部；12-杆座；13-射钉杆；131-射钉端；132-受力端；14-供力弹簧；15-抵冲组件；151-抵接座；152-压簧；1521-抵接部；1522-配合部；16-导向杆；17-缓冲构件；18-前弹性垫片；
20-驱动平台；21-缺口齿轮；211-齿部；212-缺口部；22-减速器；23-驱动电机；231-电机轴；2311-转动部位；24-凸轮；25-限位开关；26-驱动齿；
31-开口。
具体实施方式
下面结合具体实施例对本发明作进一步描述：
图1是本发明射钉枪的结构示意图。
如图1所示，射钉枪包括枪嘴5、送钉装置6、驱动装置、锂电池模块4以及外壳3。
枪嘴5内设发射通道，并具有用作射钉的射出口；送钉装置6具有过钉通道，在该过钉通道内安装有钉子，发射通道连通过钉通道；枪嘴5的后端设置有用于驱动射钉的驱动装置。驱动装置外部包裹有外壳3，外壳3的后侧延伸有手柄，手柄下端安装有给驱动单元2提供能量的锂电池模块4，手柄上端设置有用于控制驱动装置的射钉开关。
图2是本发明供力单元、驱动单元以及枪嘴的结构示意图。
如图2所示，驱动装置包括供力单元1和驱动单元2。
其中，供力单元1设置在枪嘴5的后端，并用于提供撞击钉子的动力；驱动单元2设置 在供力单元1的一侧，用于控制供力单元1对钉子进行撞击。
图3是本发明供力单元以及枪嘴的结构示意图；图4是本发明供力单元、驱动单元以及枪嘴的俯视图；图5是图4中A-A处供力单元处于自然状态的剖视图。
如图3-5所示，供力单元1包括缸体11、杆座12、射钉杆13、弹簧组件、缓冲构件17以及抵冲组件15。
缸体11由金属材料制成，缸体11具有前侧部112和后侧部111，前侧部112和后侧部111可以是一体成型在缸体的前后端，也可以是分体设置在缸体的前后端。本实施例是分体设置的，即缸体11前后端分别通过螺钉固定有前侧部112和后侧部111，前侧部112上安装有枪嘴5。
缸体11的内部活动安装有杆座12和射钉杆13，杆座12将缸体11分割为前侧腔和后侧腔。射钉杆13具有安装在杆座12上的受力端132以及伸出前侧部112用于撞击钉子的射钉端131。具体地，杆座12前端面的中部延伸有一安装柱，该安装柱上设置有安装槽，射钉杆13的受力端132安插在安装槽内，并通过安装销固定连接。射钉杆13的射钉端穿过前侧部112后伸入枪嘴5的发射通道，并用于撞击钉子。
弹簧组件自由地安装在杆座12和后侧部111之间，具有至少一根用于提供动力的供力弹簧14。即，供力弹簧14抵接在杆座12和缸体11的后侧部111之间，用于给射钉杆13提供动力。
其中，当供力弹簧14数量为一根，缸体11的内腔可以设计成与供力弹簧14外径相适配的圆形。
当供力弹簧14数量大于等于二根时，可在缸体11内安装与供力弹簧14内径相适配的导向杆16，每一根导向杆16套装一根对应的供力弹簧14。
如图5所示，在本实施例中，在缸体11的前侧部112和后侧部111上分别固定有两根上下平行分布且对称的导向杆16，每个导向杆16套有一根供力弹簧14。
供力弹簧14压缩时，在缸体11内腔或者导向杆16的导向之后，供力弹簧14只能沿着自身的轴向方向形变，防止其发生轴线方向以外的扭曲变形，这样有利于提高能量转化。
供力弹簧14的后端部安装有抵冲组件15，抵冲组件15设置在后侧腔内，并与后侧部111形成一用于抵冲组件15形变的缓冲空间。当供力弹簧14在供力后回弹时，抵冲组件15用于抵冲该供力弹簧14的回弹力。
图6是本发明供力单元和射钉杆的结构示意图；图7是本发明供力单元去掉缸体的结构示意图；
如图6-7所示，在本实施例中，抵冲组件15具有与供力弹簧14可以相抵接的抵接座151 和至少一个抵冲弹性件，本实施例中，抵接座151为环形减振片，所述抵冲弹性件为压簧152,数量为两个，该压簧152套装在导向杆16的后端，并位于抵接座151和缸体11的后侧部之间，且压簧152的抵接部1521抵接在缸体11的后侧部，其配合部1562抵接在抵接座151上。
当供力弹簧14压缩储能时，抵冲组件15也被压缩并储藏小部分的能量，该能量可以给供力弹簧14用于射钉，从而增加射钉力度。由于压簧152的质量和弹力系数均和供力弹簧不同，射钉时，两者的速度不同，因此，两者会在缸体的内部发生碰撞，从而抵冲该供力弹簧14的一部分回弹力，也大大降低射钉枪的窜动以及振颤效果。
另外，缸体11的前侧部112的内壁上还设置在缓冲构件17，缓冲构件17的外沿紧靠金属缸体11的内壁。射钉之后，杆座12撞击缓冲构件17，缓冲构件17收缩，同时冲击力快速传递到缸体11上，从而实现快速转移并消散。其中，缓冲构件17和前弹性垫片18均由橡胶或者弹性塑料制成。
如图3所示，前侧部112一侧一体成型有一驱动平台20，驱动平台20上设置有驱动单元2，驱动单元2包括设置在射钉杆13一侧的驱动齿26、安装在驱动平台20上的缺口齿轮21、减速器22以及驱动电机23。
所述驱动电机23具有电机外壳和电机轴231，所述电机轴231贯穿所述电机外壳，所述电机轴231的输出端连接减速器22的输入端，减速器22的输出端安装缺口齿轮21，所述缺口齿轮21具有与驱动齿26相啮合的齿部211以及与驱动齿26不相啮合的缺口部212。
其中，为了方便安装，驱动平台20与前侧部112的所在工作面相互垂直。驱动电机23通过减速器22安装在驱动平台20的下端面，缺口齿轮21安装在驱动平台20的上端面。缺口齿轮21的上方还设置有凸轮24以及限位开关25，凸轮24与缺口齿轮21同步转动。当凸轮24的凸部触碰到限位开关25时，限位开关25控制驱动电机23停止转动。
其中，锂电池模块4给驱动电机23供电，射钉开关用于控制驱动电机23工作。
图8是图5中B-B处供力单元、驱动单元以及枪嘴的剖视图；
如图8所示，驱动齿26设置在靠近缺口齿轮21的射钉杆13一侧，并与缺口齿轮21的齿部211互相啮合。其中，所有驱动齿26的长度和供力弹簧14的压缩长度相适配，齿部211的齿数和所有驱动齿26的齿数相适配。本实施例中，齿部211大约占据缺口齿论圆周长的3/4，缺口部212大约占据缺口齿论圆周长的1/4，此时，缺口齿轮21转动270°，射钉杆13的移动量要满足供力弹簧14的压缩至射钉位置。
当齿部211啮合驱动齿26时，缺口齿轮21的转动能带动射钉杆13移动；当缺口部212对着射钉杆13时，即齿部211不啮合驱动齿26，此时，射钉杆13处于无缺口齿轮21约束的状态，即可以实现射钉。
在驱动单元2的作用下，供力弹簧14压缩至具有足够的动能去射钉的位置。此时，杆座12的位置定义为触发位置，触发位置位于抵冲组件15和前侧部112之间。那么，杆座12只能在触发位置和前侧部112之间移动。
当杆座12位于接触位置时，抵接座151接触缸体11的后侧部111，压簧152也随之被压缩，并为杆座12以及射钉杆13提供小部分的射钉动能。
在本实施例中，每一根供力弹簧14的蓄力值为F，每一根压簧152的拉伸力为f，合力＝2F+2f。其中，f/F＝1/10。该比例下，在储能时，可以不影响驱动单元2的正常工作，即不需要配置负载更大的驱动电机；同时，在减振时，又能对供力弹簧达到很好的减振效果。
如图1-2所示，所述电机轴231的伸出端设有供用户进行人工转动的转动部位2311，所述转动部位上设置有一字槽或者十字槽或者外六角柱或者内六角槽。另外，该外壳3上设置有供外部工具伸入的开口31，所述开口31正对所述转动部位2311，外部工具为六角扳手、螺丝刀等，通过外部工具与转动部位2311的嵌合，实现对所述电机轴231的旋转。
当射钉枪出现故障时，可以通过外部工具反向转动电机轴，使缺口齿轮21带动射钉杆13朝射钉方向移动，从而解除供力弹簧的储能状态，射钉枪拆卸过程中，避免因操作失误而导致储能状态的射钉杆误射，保障维修人员的生命安全。
另外，在开口31处的外壳3上标注“警告：维修前务必反向旋转电机轴！”等警示标语以及电机轴的转动方向，提醒维修人员正确操作，确保安全。
本实施例的射钉枪进行射钉的具体动作过程如下:
在第一次工作时，如图5所示，供力弹簧14处于自然伸长状态。按压射钉开关，驱动电机23工作，通过减速器22带动缺口齿轮21转动，此时缺口齿轮21的齿部211和驱动齿26相互啮合，从而驱动射钉杆13以及杆座12向后移动，并压缩供力弹簧14，同时对压簧152做功。当供力弹簧14到达触发位置时，缺口齿轮21上方的凸轮24的凸部触碰到限位开关25，并让驱动电机23停止工作。此时，缺口齿轮21中靠近缺口部212的齿部211还啮合在射钉杆13的驱动齿26上。
当需要射钉时，使用者再一次按压射钉开关，驱动电机23同方向转动，缺口齿轮21的齿部脱离驱动齿，即缺口部212与射钉杆13相对，并失去约束效果，此时，杆座12以及射钉杆13在供力弹簧14以及压簧152的作用下，快速向前运动，并实现一次射钉。
与此同时，驱动电机23还在继续同方向转动，缺口齿轮21的齿轮部会再次啮合射钉的驱动齿26，并继续推动射钉杆13以及杆座12向后移动，压缩供力弹簧14，同时对压簧152做功。当供力弹簧14到达最大压缩位置时，凸轮24的凸部触碰到限位开关25，并让驱动电 机23停止工作，再一次到达达触发位置，为下一次射钉做好准备。
实施例的作用与效果
本实施例提供一种驱动装置以及包含驱动装置的射钉枪，射钉枪包括射钉杆、用于提供射钉动力的供力单元以及驱动供力单元对钉子进行撞击的驱动单元，驱动单元包括驱动电机，所述驱动电机具有电机轴，所述电机轴的伸出端设有供用户进行人工转动的转动部位，所述转动部位上设置有一字槽或者十字槽或者外六角柱或者内六角槽。当遇到卡钉故障时，用户可以通过常规的外部工具，驱动所述转动部位旋转所述电机轴，解除所述供力单元的储能状态，从而实现快速、安全、方便的维修。
所述驱动单元外部包裹有外壳，该外壳上设置有供外部工具伸入的开口，所述开口正对所述转动部位，在不拆卸外壳的情况下，通过外部工具与转动部位的嵌合，从而对所述电机轴的旋转，实现快速维修。
所述供力单元包括缸体、杆座、射钉杆、弹簧组件以及抵冲组件，该抵冲组件安装在后侧腔内，当供力弹簧在供力后回弹时，用于抵冲该供力弹簧的回弹力。本发明的供力弹簧在完成射钉之后会进行回弹并撞击抵冲组件，抵冲组件自身变形延长了供力弹簧撞击时间，使供力弹簧的回弹力缓缓地转移至缸体上，大大减小了单位时间内缸体所受到的冲击力，实现对回弹的供力弹簧进行减振，防止其出现窜动的情况，也降低了之后振颤的效果，保证射钉枪工作的稳定性，从而减轻使用者的劳动强度。与此同时，当供力弹簧在储能过程中，抵冲组件也会发生形变，还能给杆座以及射钉杆提供一部分射钉力。
另外，抵冲组件包括抵接在供力弹簧后端部的抵接座以及至少一个抵冲弹性件，该抵接座有利于抵冲弹性件的安装，同时，可以增加抵冲弹性件与供力弹簧的接触面积，有利于射钉枪的减振。
上述实施例仅为本发明的较佳实施例，并非依此限制本发明的保护范围，故：凡依本发明的结构、形状、原理所做的等效变化，均应涵盖于本发明的保护范围之内。

Claims (7)

  1. 一种易维修型射钉枪，其特征在于，包括：
    射钉杆，具有射钉端和受力端；
    供力单元，与所述射钉杆的受力端相结合，用于给所述射钉杆提供射钉力；以及
    驱动单元，用于驱动所述供力单元移动，并使其处于储能状态；
    其中，所述驱动单元包括驱动电机，所述驱动电机具有电机轴，所述电机轴的伸出端设有供用户进行人工转动的转动部位；
    用户可以通过所述转动部位旋转所述电机轴，解除所述供力单元的储能状态。
  2. 根据权利要求1所述的一种易维修型射钉枪，其特征在于，
    还包括用于包裹所述驱动单元的外壳，该外壳上设置有供外部工具伸入的开口，所述开口正对所述转动部位，通过外部工具与转动部位的嵌合，实现对所述电机轴的旋转。
  3. 根据权利要求2所述的一种易维修型射钉枪，其特征在于，
    所述转动部位上设置有一字槽或者十字槽或者外六角柱或者内六角槽。
  4. 根据权利要求1所述的一种易维修型射钉枪，其特征在于，
    其中，所述驱动单元还包括减速器和缺口齿轮，所述电机轴的输出端连接该减速器的输入端，该减速器的输出端设置有所述缺口齿轮；
    所述射钉杆的侧壁上开设有若干个驱动齿；
    所述缺口齿轮外周具有用于啮合驱动齿的齿部以及与该齿部相邻的缺口部，当缺口部转动到所述射钉杆一侧时，所述驱动单元解除对所述射钉杆的约束。
  5. 根据权利要求1所述的一种易维修型射钉枪，其特征在于，
    其中，所述供力单元包括：
    缸体，设置在所述射钉枪内，具有前侧部和后侧部；
    杆座，可移动地设置在所述缸体内，将所述缸体分割为前侧腔和后侧腔
    弹簧组件，自由地安装在所述杆座和所述后侧部之间，具有至少一根用于提供所述动力的供力弹簧；以及
    抵冲组件，设置在所述后侧腔内，当所述供力弹簧在供力后回弹时，用于抵冲该供力弹簧的回弹力；
    其中，所述杆座连接所述射钉杆的受力端。
  6. 根据权利要求5所述的一种易维修型射钉枪，其特征在于，
    其中，所述抵冲组件具有与所述供力弹簧可以相抵接的抵接座以及至少一个抵冲弹性件，该抵冲弹性件具有用于与所述缸体接触的抵接部以及与所述抵接座相配合的配合部。
  7. 根据权利要求6所述的一种易维修型射钉枪，其特征在于，
    其中，所述抵接座为环形减振片，所述抵冲弹性件为压簧。
PCT/CN2022/101893 2021-10-25 2022-06-28 一种易维修型射钉枪 WO2023071258A1 (zh)

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US20050127129A1 (en) * 2003-12-11 2005-06-16 Joel Marks Jam resistant staple holding track for staplers
EP2230050A1 (en) * 2009-02-25 2010-09-22 Huading Zhang Electrical motor driven nail gun
CN201808039U (zh) * 2010-09-15 2011-04-27 苏州卓识商务咨询有限公司 电动钉锤
CN205097145U (zh) * 2015-11-13 2016-03-23 上海坚明办公用品有限公司 电动打钉枪的击钉作动装置
CN206952919U (zh) * 2017-05-03 2018-02-02 昆山汉升达传动科技有限公司 电动钉枪
CN211729042U (zh) * 2019-12-30 2020-10-23 金华研创科技有限公司 一种电动钉枪
JP2021160028A (ja) * 2020-03-31 2021-10-11 株式会社マキタ 打ち込み工具

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Publication number Priority date Publication date Assignee Title
US20050127129A1 (en) * 2003-12-11 2005-06-16 Joel Marks Jam resistant staple holding track for staplers
EP2230050A1 (en) * 2009-02-25 2010-09-22 Huading Zhang Electrical motor driven nail gun
CN201808039U (zh) * 2010-09-15 2011-04-27 苏州卓识商务咨询有限公司 电动钉锤
CN205097145U (zh) * 2015-11-13 2016-03-23 上海坚明办公用品有限公司 电动打钉枪的击钉作动装置
CN206952919U (zh) * 2017-05-03 2018-02-02 昆山汉升达传动科技有限公司 电动钉枪
CN211729042U (zh) * 2019-12-30 2020-10-23 金华研创科技有限公司 一种电动钉枪
JP2021160028A (ja) * 2020-03-31 2021-10-11 株式会社マキタ 打ち込み工具

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