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Fastener driving tool

A fastener driving and tooling technology, applied in the direction of nailing tools, manufacturing tools, etc., can solve problems such as poor reliability and complex structure of elastic meshing parts, and achieve the effect of avoiding meshing interference, eliminating out-of-control movements, and ensuring safe operation

Active Publication Date: 2019-09-20
NANJING TENGYA PRECISE TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, elastic engagement parts with a certain degree of freedom not only complicate the structure, but also have poor reliability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The basic structure of the fastener driving tool in this embodiment is as follows: image 3 and Figure 4 As shown, the rear end of the housing 1 is equipped with an energy storage mechanism 2 composed of a cylinder 2-2 and a piston 2-1, and the piston 2-1 is fixedly connected with the firing pin 4 extending to the gun mouth 3. The lower side of the cylinder body 2-2 is provided with a handle 5 with a battery pack 5-1, the lower side of the gun nozzle 3 is provided with a nail box 6 for arranging nails, and between the handle 5 and the nail box 6 is a The lifting mechanism 7 and the motor 8 and the reduction transmission mechanism 8-1 that are positioned at the bottom.

[0024] The concrete structure of hoisting mechanism 7 is as Figure 5 and Image 6 As shown, it contains a tooth-missing driving wheel 9 meshing with the striker 4, and the driving wheel 9 is connected to the electric motor 8 provided by the battery pack 5-1 through the reduction transmission mechani...

Embodiment 2

[0028] The basic structure of the fastener driving tool in this embodiment is the same as that in Embodiment 1, the difference lies in the lifting mechanism such as Figure 7 As shown, the striker 4 of the lifting mechanism has the first and second sets of engagement protrusions respectively located on both sides in the length direction, and the tooth-missing abdication drive wheel 9 has the same teeth that are respectively engaged with the first and second sets of engagement protrusions. Shafts 1st and 2nd toothless drive wheels. The first group of meshing protrusions and the first group of tooth-missing transmission wheels lack the first meshing protrusions and the first meshing teeth respectively, that is, only have the second, third and fourth meshing protrusions except the first meshing protrusions 4-2, 4-3, 4-4, only have the second, the 3rd, the 4th meshing teeth 9-2, 9-3, 9-4 except the first meshing teeth; The gear and the second group of tooth-missing transmission w...

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PUM

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Abstract

The invention relates to a fastener driving tool, and belongs to the technical field of electric tools. The tool comprises an energy storage mechanism formed by a cylinder body and a piston in a shell, the piston is fixedly connected with a striker extending to a gun nozzle, and a handle with a battery pack is arranged on one side of the cylinder body. A nail box is arranged on one side of the gun nozzle, and a lifting mechanism is arranged between the handle and the nail box. The lifting mechanism comprises a missing tooth receding driving wheel which is meshed with the striker, and the driving wheel is in transmission connection with a motor for providing electric energy to the battery pack. A group of meshing protrusions is arranged in the length direction of the striker, and the first meshing protrusion, adjacent to the piston, of the striker is higher than other meshing protrusions. A first meshing tooth, corresponding to the first meshing protrusion, of the driving wheel avoids the axial deviation of other meshing protrusions. After the tool is used, the normal meshing relation between the driving wheel and the striker can be ensured all the time, the meshing interference of the driving wheel and the striker possibly caused by stuck nails is effectively avoided, the out-of-control action of the striker is completely eradicated, and the operation safety is ensured.

Description

technical field [0001] The invention relates to a fastener driving tool, in particular to an electric gas spring nail gun, which belongs to the technical field of electric tools. Background technique [0002] As far as the applicant knows, for a long time, tools for fixing one object to another with the aid of nail-type fasteners have been mainly pneumatic, including high-pressure gas, gas combustion, etc., which are not only expensive, but also have potential safety hazards. For this reason, electric gas spring nail guns have appeared in recent years. Its typical structure is disclosed in Chinese patent literature with application number 201621041199.3. This type of nail gun is driven by a motor to rotate the missing tooth to give way to the drive wheel, thereby lifting the firing pin meshed with it. Energy is stored by the piston compressing the air in the cylinder. Afterwards, when the drive wheel reaches the state of lack of teeth and breaks away from the engagement wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25C1/06
CPCB25C1/06
Inventor 常凤智高冬生朱清华王爱国
Owner NANJING TENGYA PRECISE TECH DEV CO LTD