CN216180253U

CN216180253U - Safety pawl lock of hand-held nail-shooting fastening tool

Info

Publication number: CN216180253U
Application number: CN202122748174.4U
Authority: CN
Inventors: 陈星星; 蔡桂远
Original assignee: Zhejiang Xiaopin Technology Co ltd
Current assignee: Zhejiang Xiaopin Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to a safe pawl lock of a handheld nail shooting fastening tool, which comprises a tool shell, a firing pin, a lifting mechanism, a support, a sliding block, a pawl and a torsion spring, wherein the sliding block is arranged on the support in a sliding mode, the pawl is rotatably connected to the support, the torsion spring is used for returning the pawl, a locking tooth is arranged on one side of the firing pin, a locking vertical surface is arranged on one side, located at the top of the firing pin, of the locking tooth, an inclined surface is arranged on one side, away from the top of the firing pin, a locking convex foot matched with the locking tooth extends from one side of the pawl, a connecting shaft rotatably connected with the sliding block extends from the upper surface of the pawl, and an unlocking step used for separating the locking convex foot from the locking vertical surface of the locking tooth extends upwards from a lifting wheel of the lifting mechanism. This application sets up the lock tooth on the firing pin, sets up locking vertical plane and inclined plane in the both sides of lock tooth simultaneously, and at the conflict in-process with the protruding foot of locking, the firing pin can only roll back and can not advance toward the export to can not beat because of unexpected atmospheric pressure after dismantling the nail that penetrates that blocks, avoid appearing the incident because of maloperation or accident, improve product safety in utilization.

Description

Safety pawl lock of hand-held nail-shooting fastening tool

Technical Field

The utility model relates to the technical field of handheld nail shooting fastening tools, in particular to a safety pawl lock of a handheld nail shooting fastening tool.

Background

The nail shooting tool is a modern nail shooting fastening technical product, can shoot a nail, is a fastening tool for driving the nail into a building by using a blank cartridge, gas or compressed air as power, and is a necessary manual tool for woodwork, building construction and the like.

When the nailer has a staple, the jammed nail needs to be removed. When the staple occurs, since the striker is not completely retracted, the striker may be ejected by the air pressure of the air cylinder after the staple is removed, which may cause a safety accident.

SUMMERY OF THE UTILITY MODEL

In response to the deficiencies in the background art, the present invention provides a safety pawl lock for a hand-held nail-shooting fastening tool.

The technical scheme adopted by the utility model is as follows: the utility model provides a safe pawl lock of nail fastening instrument is penetrated to hand-held type, includes instrument shell, firing pin and hoist mechanism, still includes the support, slides slider, the pawl of swivelling joint on the support that sets up on the support and is used for the torsional spring of pawl return, one side of firing pin is equipped with the lock tooth, one side that the lock tooth is located the firing pin top is the locking vertical plane, and the one side of keeping away from the firing pin top is the inclined plane, one side of pawl extends the locking tang that has with lock tooth looks adaptation, and the extension of pawl upper surface has the connecting axle with slider swivelling joint, hoist mechanism's lifting pulley upwards extends to have and is used for the unblock step that breaks away from the locking vertical plane of locking tang from the lock tooth.

Furthermore, a movable groove for the firing pin to pass through is formed in the support, and a locking convex foot of the pawl extends into the movable groove to abut against a locking tooth of the firing pin.

Furthermore, the pawl is connected to the support through a rotating shaft in a rotating mode, and a sleeve connected with the rotating shaft in a rotating mode is arranged on the pawl.

Further, still include first magnet and second magnet, be equipped with the activity chamber that runs through terminal surface about the slider in the slider, be equipped with the mounting groove that is used for first magnet on the support of activity chamber below, the second magnet sets up in the slider, first magnet and second magnet inter attraction.

The utility model has the beneficial effects that: this application sets up the lock tooth on the firing pin, sets up locking vertical plane and inclined plane in the both sides of lock tooth simultaneously, and at the conflict in-process with the protruding foot of locking, the firing pin can only roll back and can not advance toward the export to can not play because of the accident after dismantling the penetrating nail that blocks, avoid appearing the incident because of maloperation or careless, improve hand-held type fastening tool's safety in utilization.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the pawl positioned on top of the striker.

Fig. 3 is a top view schematic of the pawl in position.

Fig. 4 is a schematic view of the pawl positioned at the rear of the striker.

FIG. 5 is a schematic axial view of the pawl position.

In fig. 1-5: 1. a tool housing; 2. a striker; 3. a support; 4. a slider; 5. a pawl; 6. a torsion spring; 7. locking teeth; 8. a locking vertical surface; 9. an inclined surface; 10. a locking lug; 11. a connecting shaft; 12. a lifting wheel; 13. unlocking the step; 14. a movable groove; 15. a rotating shaft; 16. a sleeve; 18. Mounting grooves; 19. a first magnet; 20. a second magnet; 21. a movable cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

The utility model provides a safety pawl lock of a hand-held nail-shooting fastening tool.

In this embodiment, referring to fig. 1 to 5, the safety pawl lock of the handheld nail shooting fastening tool includes a tool housing 1, a striker 2, a lifting mechanism, a bracket 3, a slider 4 slidably disposed on the bracket, a pawl 5 rotatably connected to the bracket, and a torsion spring 6 for returning the pawl, wherein a locking tooth 7 is disposed on one side of the striker, a locking vertical surface 8 is disposed on one side of the locking tooth located at the top of the striker, an inclined surface 9 is disposed on one side away from the top of the striker, a locking protruding leg 10 adapted to the locking tooth extends from one side of the pawl, a connecting shaft 11 rotatably connected to the slider extends from the upper surface of the pawl, and an unlocking step 13 for disengaging the locking protruding leg from the locking vertical surface of the locking tooth extends upward from a lifting wheel 12 of the lifting mechanism.

This application sets up the lock tooth on the firing pin, sets up locking vertical plane and inclined plane in the both sides of lock tooth simultaneously, and at the conflict in-process with the protruding foot of locking, the firing pin can only roll back and can not advance toward the export to can not play because of the accident after dismantling the penetrating nail that blocks, avoid appearing the incident because of maloperation or careless, improve hand-held type fastening tool's safety in utilization.

When unlocking, the lifting wheel of the rotary lifting mechanism is rotated to enable the unlocking step to touch the sliding block to slide so as to drive the pawl to rotate to enable the locking convex foot on the pawl to be separated from the locking vertical surface of the locking tooth, and therefore unlocking is completed.

Specifically, the bracket is provided with a movable groove 14 for the striker to pass through, and a locking convex foot of the pawl extends into the movable groove to abut against a locking tooth of the striker. Under the action of the elasticity of the torsion spring, when no external force acts on the pawl, the locking convex foot of the pawl can be pressed against the locking tooth, so that locking is realized, and at the moment, the firing pin can only retreat but can not advance.

Specifically, the pawl is rotatably connected to the support through a rotating shaft 15, and a sleeve 16 rotatably connected with the rotating shaft is arranged on the pawl.

Specifically, still include first magnet 19 and second magnet 20, be equipped with the activity chamber 21 that runs through terminal surface about the slider in the slider, be equipped with the mounting groove 18 that is used for first magnet on the support of activity chamber below, the second magnet sets up in the slider, first magnet and second magnet inter attraction.

When the lifting wheel rotates, the top of the sliding block is abutted to the unlocking step to overcome the magnetic force of mutual attraction of the first magnet and the second magnet to enable the sliding block to slide, and the pawl is driven to rotate to enable the locking convex foot on the pawl to be far away from the locking tooth, so that unlocking is achieved.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.

Claims

1. A safety pawl lock for a hand-held nail-shooting fastening tool, comprising a tool housing, a striker, and a lifting mechanism, characterized in that: the improved structure of the lock is characterized by further comprising a support, a sliding block, a pawl and a torsion spring, wherein the sliding block is arranged on the support in a sliding mode, the pawl is rotatably connected to the support, the torsion spring is used for returning the pawl, a locking tooth is arranged on one side of the striker, a locking vertical surface is arranged on one side of the locking tooth, an inclined surface is arranged on one side of the locking tooth, the locking convex foot matched with the locking tooth is extended on one side of the pawl, a connecting shaft rotatably connected with the sliding block is extended on the upper surface of the pawl, and an unlocking step used for enabling the locking convex foot to be separated from the locking vertical surface of the locking tooth is extended upwards from a lifting wheel of the lifting mechanism.

2. The safety pawl lock for a hand-held nail-shooting fastening tool according to claim 1, wherein: the bracket is provided with a movable groove for the striker to pass through, and the locking convex foot of the pawl extends into the movable groove to be abutted against the locking tooth of the striker.

3. The safety pawl lock for a hand-held nail-shooting fastening tool according to claim 1, wherein: the pawl is connected to the support through a rotating shaft in a rotating mode, and a sleeve connected with the rotating shaft in a rotating mode is arranged on the pawl.

4. A safety pawl lock for a hand-held nail-shooting fastening tool according to any one of claims 1-3, wherein: still include first magnet and second magnet, be equipped with the activity chamber that runs through terminal surface about the slider in the slider, be equipped with the mounting groove that is used for first magnet on the support of activity chamber below, the second magnet sets up in the slider, first magnet and second magnet inter attraction.