CN215318482U

CN215318482U - Nail gun

Info

Publication number: CN215318482U
Application number: CN202120380217.5U
Authority: CN
Inventors: 王伟毅
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Industrial Co Ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-12-28
Anticipated expiration: 2031-02-20

Abstract

The present invention provides a nail gun, comprising: the gun body is used for shooting the nails in the nail row; the nail box is arranged on the gun body and used for storing the nail rows; the nail pushing block is arranged on the nail box and used for pushing nails in the nail row to enter the gun body from the nail box; the handle is arranged on the gun body and used for controlling the gun body to carry out nailing operation; the safety lever is connected to the handle and used for unlocking or locking the handle; the nail pushing block is gradually close to the safety rod along with the reduction of the length of the nail row, the safety rod has an unlocking movement stroke for switching from a locking state to an unlocking state, and the nail pushing block can stretch into the unlocking movement stroke of the safety rod when the nail row is in a preset state and blocks the safety rod from being switched to the unlocking state from the locking state.

Description

Nail gun

Technical Field

The utility model relates to the technical field of hand tools, in particular to a nail gun.

Background

The nail gun is a hand-held nail gun, and its main body structure mainly includes gun body, nail box component and safety device, said safety device is used for mechanically locking gun body to prevent the nail gun from firing by mistake. However, the safety performance of the conventional nail gun still has disadvantages, for example, the conventional nail gun still can perform nailing operation in a nail-free state, namely, the conventional 'idle nailing', damage is caused to a working surface, and damage is also caused to the nail gun. The safeties in existing nailers do not prevent "dry firing" of the nailer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nail gun which has better safety performance and can avoid the phenomenon of idle striking.

The present invention provides a nail gun, comprising:

the gun body is used for shooting the nails in the nail row;

the nail box is arranged on the gun body and used for storing the nail rows;

the nail pushing block is arranged on the nail box and used for pushing nails in the nail row to enter the gun body from the nail box;

the handle is arranged on the gun body and used for controlling the gun body to carry out nailing operation;

the safety lever is connected to the handle and used for unlocking or locking the handle;

the nail pushing block is gradually close to the safety rod along with the reduction of the length of the nail row, the safety rod has an unlocking movement stroke for switching from a locking state to an unlocking state, and the nail pushing block can stretch into the unlocking movement stroke of the safety rod when the nail row is in a preset state and blocks the safety rod from being switched to the unlocking state from the locking state.

The utility model provides a nail gun which can close the nailing operation of the nail gun under the condition of no nail or few nails by controlling the movement stroke of a safety rod.

Further, the preset state of the nail row is the state of one or more nails left in the nail row, and the nail pushing block extends into the unlocking movement stroke of the safety lever when one or more nails are left in the nail row.

By the arrangement, the requirement on manufacturing precision can be reduced, and the requirement on the size precision between the nail pushing block and the nail box is reduced, so that the manufacturing cost is reduced, and the cost performance of the product is improved.

Furthermore, the preset state of the nail row is the state that all the nails of the nail row are driven out by the gun body, and the nail pushing block extends into the unlocking movement stroke of the safety lever when all the nails of the nail row are driven out by the gun body.

So set up, push away the nail piece and all nails of nail row stretch into the unblock motion stroke of bumper when all nails are beaten by the rifle body, also promptly the rifle body is after all nails of nail row are beaten, gets into to open and avoids the state of "empty beating". So set up, the rifle body has the best performance of avoiding "hitting without work", reduces the loss to the nail.

Furthermore, an avoiding hole is formed in the nail box and is opposite to the nail pushing block, and the avoiding hole can allow the nail pushing block to pass through so as to extend into the unlocking movement stroke of the safety rod.

So set up, dodge the hole and make the structure of the nail casket in the unable adjustment conventional design of rifle body, only need the trompil both can realize avoiding "empty function of beating", better to the adaptability of the nail rifle of conventional structure.

Furthermore, two ends of the safety rod are connected with each other and are respectively positioned on two sides of the gun body.

So set up, the setting that the bumper can be comparatively stable is on the rifle body, and the stability of connecting is better.

Furthermore, two ends of the safety rod are connected with each other and are positioned at one side of the gun body.

Furthermore, the nail gun also comprises an elastic piece, one end of the elastic piece acts on the nail pushing block, and the other end of the elastic piece is connected to the gun body.

By the arrangement, the pushing power of the nail pushing block is automatically driven by the elastic force, so that the nail pushing block has better stability.

Further, the elastic piece is a spiral tension spring.

Further, the elastic member is a compression spring or an extension spring.

So set up, the life-span and the stability of elastic component are preferred.

Further, the rifle body includes connecting portion, portion of gripping, drive division and crossbeam, the both ends of the portion of gripping connect respectively in connecting portion and drive division, the both ends of nail casket connect respectively in connecting portion with the crossbeam.

Drawings

FIG. 1 is a schematic view of a nail gun according to one embodiment of the present invention;

FIG. 2 is a schematic view of the nailer of FIG. 1 shown in another perspective;

FIG. 3 is a cross-sectional schematic view of the nail gun of FIG. 1;

FIG. 4 is a schematic structural view of the nail gun of FIG. 1 with some components omitted;

fig. 5 is an enlarged schematic view of the nail gun of fig. 1 at a.

Description of reference numerals:

100. a nail gun; 1. a gun body; 101. a connecting portion; 102. a grip portion; 10. a gas storage cavity; 1022. an air inlet pipe; 103. a drive section; 1031. a stroke chamber; 109. a cross beam; 13. a power member; 109. a cross beam; 2. a magazine member; 201. a nail box; 202. a handle; 203. pushing the nail block; 3. a safety device; 301. a bumper; 302. avoiding holes; 304. an operation unit.

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.

All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Descriptions in this specification as relating to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to any indicated technical feature or quantity. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a nail gun 100 according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of the nail gun 100 shown in fig. 1 from another perspective, fig. 3 is a schematic cross-sectional diagram of the nail gun 100 shown in fig. 1, and fig. 4 is a schematic structural diagram of the nail gun 100 shown in fig. 1 with some elements omitted.

The present invention provides a nail gun 100, and the nail gun 100 is used as a hand-held nailing tool for fastening a target object. In the present embodiment, the nail gun 100 is applied to the field of furniture manufacturing. It is understood that in other embodiments, the nail gun 100 may be used in other fields besides home decoration, workpiece manufacturing, and the like.

The nail gun 100 includes a gun body 1 and a magazine member 2, and the magazine member 2 is mounted on the gun body 1. The gun body 1 is used for installing the nail box component 2; the magazine member 2 is used to receive and convey nails so that the nail gun 100 can nail nails at a desired position. In the present invention, each gun body 1 is provided with a magazine unit 2.

It is understood that the number of the magazine members 2 may be plural, and each magazine member 2 of the plural magazine members 2 contains nails of at least one specification; the nail box parts 2 and the same gun body 1 can be respectively connected in the same connection mode, so that the nail box parts 2 arranged on the gun body 1 can be replaced; the nail box parts 2 can contain the same nails and different nails; the same magazine part 2 can hold one kind of nail and also a plurality of kinds of nails.

In actual use, the structure and the shape of the gun body 1 can be determined according to actual use requirements; in the present embodiment, the structure of the nail gun 100 will be described by taking the structure of a pneumatic power setting nail gun as an example.

The gun body 1 comprises a connecting part 101, a holding part 102, a driving part 103 and a cross beam 109; the upper end of the connecting part 101 and the upper end of the driving part 103 are respectively connected with two ends of the holding part 102, the lower end of the connecting part 101 is connected with the cross beam 109 and the nail box component 2, and the connecting part 101 is used for connecting the nail box component 2 and helping the nail box component 2 to keep stable; the holding portion 102 is held by an operator, and the inside of the holding portion 102 can also store a gas source. The driving portion 103 is used to provide a driving structure required for nailing. The cross beam 109 is used to support the magazine part 2 and to guide the magazine part 2 when mounting and dismounting it. The lower end of the connecting portion 101 is provided with a first notch. A first pin shaft is arranged in the first gap. The lower end of the connecting portion 101 and the lower end of the driving portion 103 are connected to both ends of the cross beam 109, respectively. The connecting portion 101, the grip portion 102, and the driving portion 103 are integrally formed. The two ends of the beam 109 are detachably connected with the connecting part 101 and the driving part 103 respectively. The detachable connection can be realized by conventional means such as fasteners and the like, and is not described in detail herein.

The grip portion 102 has one end connected to the upper end of the connecting portion 101 and the other end connected to the upper end of the driving portion 103. The grip portion 102 is provided with the air reservoir chamber 10. An air inlet pipe 1022 is arranged on the holding part 102, and the air inlet pipe 1022 is communicated with the air storage cavity 10 and used for supplying air to the air storage cavity 10.

The driving portion 103 has a predetermined length and is used for mounting a driving structure such as the power member 13 necessary for nailing. The driving portion 103 is provided with a stroke chamber 1031. The stroke chamber 1031 is used to provide space for the power member 13 required for a stroke. In the example shown, the outer shape of the drive portion 103 is substantially circular. The stroke chamber 1031 extends in the up-down direction by a selected height. A power member 13 is provided in the stroke chamber 1031. The power member 13 is movable within the stroke chamber 1031.

The power member 13 is shaped to match the stroke chamber 1031, dividing the stroke chamber 1031 into upper and lower portions, i.e., an upper chamber and a lower chamber. The upper chamber and the lower chamber are respectively communicated with the gas storage chamber 10. The valve can control the power air in the air storage cavity 10 to enter the upper cavity or the lower cavity. The powered air enters the upper chamber and drives the powered member 13 downward to drive nails. The powered air enters the lower chamber and drives the powered member 13 upwardly to move the nailing member out of the nailing channel for loading staples into the nailing channel.

In addition to the above-mentioned driving of the power member 13 by means of the power air, the power member 13 may be driven by means of power such as electric power, manual power, gas power, etc.

The nail gun 100 further comprises a handle 202, the handle 202 being mounted on the grip portion 102, the handle 202 being adapted to control access of the gas reservoir 10 inside the grip portion 102 to the upper and lower chambers, respectively. When the handle 202 is released, the high-pressure gas in the gas storage cavity 10 can smoothly enter the upper cavity and the lower cavity so as to control the power member 13 to reciprocate for nailing; when the handle 202 is locked, the high-pressure gas in the gas storage chamber 10 cannot smoothly enter the upper chamber and the lower chamber, the power member 13 cannot move, and the nail gun 100 cannot perform a nailing operation.

In this embodiment, the handle 202 is hook-shaped, that is, the volume of one end of the handle 202 is larger than the volume of the other end of the handle 202; with this arrangement, the handle 202 is more easily operable and more convenient for operation.

The magazine part 2 includes a magazine 201 defined between the driving portion 103 and the cross member 109, and a nail pushing block 203 which conveys nails into the driving portion 103 along the magazine 201, the driving portion 103 having a nail ejecting passage therein, the magazine 201 being mounted on the gun body, the nailing member being driven by the power member 13 to eject the nail conveyed into the driving portion 103 through the nail ejecting passage as the power member reciprocates.

In addition, in order to facilitate the loading of the nails, the nail magazine 201 further includes a drawer (not numbered), a head (not numbered) connected to one end of the drawer, and an inner frame (not numbered), wherein a pin (not numbered) is fixed on the drawer, the inner frame includes a guide frame (not numbered), an elastic member (not numbered), a hook (not numbered), a button (not numbered) and a guide roller (not numbered), the guide roller is assembled on the guide frame, the nail pushing block 203 straddles on the guide frame, one end of the elastic member abuts on the nail pushing block 203, the other end of the elastic member bypasses the guide roller and is connected to the guide frame, the adhered row of nails also straddles on the guide frame and is located on the left side of the nail pushing block 203, and the nail pushing block 203 pushes the nails to the nail shooting channel through the passage by means of the elastic force of the elastic member.

The magazine 201 in this embodiment is used to store door type nails such as singlelegged nails. It is understood that in other embodiments, the nail gun 100 can suitably change the form of the nail pushing blocks 203 to adapt them to the shape of the nail according to the shape of the nail.

In the present embodiment, the elastic member is a helical tension spring, a compression spring, or an extension spring. It will be appreciated that in other embodiments, other resilient members besides helical tension springs may be used.

The nail gun 100 further comprises a safety device 3, wherein the safety device 3 comprises a safety lever 301, and the safety lever 301 is connected to the handle 202; the safety lever 301 can be operated to lock the handle 202 or unlock the handle 202.

As for the locking structure between the safety lever 301 and the handle 202, it may employ a conventional locking technique. In this embodiment, the bumper 301 has a curved belt shape, one end of the bumper 301 is connected to the handle 202, and the other end is wound from one side of the beam 109 to the other side of the beam 109; the safety lever 301 can be pressed or pulled out to lock the handle 202 or to release the locking action of the handle 202.

In a state where the handle 202 is locked by the safety lever 301, that is, in a state where the handle 202 is locked, the handle 202 cannot be operated, and the nail gun 100 cannot perform a nailing operation; in a state where the safety lever 301 is unlocked from the handle 202, that is, in a state where the handle 202 is unlocked, the handle 202 is allowed to be operated, and the nail gun 100 can perform a nailing operation.

It should be noted that the locking structure between the safety lever 301 and the handle 202 is only schematically illustrated in the present invention, and the nail gun 100 provided in the present invention is not limited to the locking structure between the safety lever 301 and the handle 202 in the present embodiment and the drawings.

In this embodiment, two ends of the safety lever 301 are connected to each other and located on two sides of the gun body 1, respectively, and the safety lever 301 is in a steel wire shape and is bent; so set up, bumper 301 can be comparatively stable setting on the rifle body 1, and the stability of connecting is better.

Although the conventional nail gun is locked by the safety device 3 such as the safety lever 301 to prevent the occurrence of nail striking in an unexpected situation, the safety performance of the conventional nail gun is still insufficient, and the conventional nail gun can still perform nail striking operation in a nail-free state, which is also called "blank striking".

The utility model provides a nail gun 100, which can close the nailing operation of the nail gun 100 under the condition of no nail or few nails by controlling the movement stroke of a safety lever 301.

Referring also to fig. 5, fig. 5 is an enlarged view of the nail gun 100 shown in fig. 1 at a. Specifically, the safety lever 301 has the unlocked state and the locked state according to the above description, that is, when the safety lever 301 is in the locked state, the safety lever 301 locks the handle 202 and the handle 202 cannot be operated, and the nail gun 100 cannot perform a nailing operation; when the safety lever 301 is in the unlocked state, the safety lever 301 releases the lock of the handle 202, the handle 202 is allowed to be operated, and the nailing gun 100 can perform a nailing operation.

The safety lever 301 is switched between an unlocking state and a locking state by the operation of a user on the safety lever through the movement of the safety lever; the movement of the safety lever 301 to switch from the unlocked state to the locked state is referred to as a locking movement stroke; the movement of the safety lever 301 to switch from the locked state to the unlocked state is referred to as a locking movement stroke.

The nail pushing block 203 pushes nails in a nail row (not shown) to enter the gun body 1 one by one so as to allow the gun body 1 to perform a shooting operation; the nail row is a material formed by arranging a plurality of nails in order and is arranged in the nail box 201; when the gun body 1 shoots a nail once, the nail row is reduced by one nail, and the length is shortened. Therefore, the nail pushing block 203 gradually approaches the position of the bumper 301 as the length of the nail row decreases, i.e. the direction of the nail pushing block 203 pushing the nail is directed to the bumper 301.

In this embodiment, the nail pushing block 203 can be close to the safety rod and extend into the unlocking movement stroke of the safety rod 301 after the number of nails in the nail row is reduced to a certain degree, that is, after the nail row is in the preset state, so as to prevent the safety rod 301 from being switched to the unlocking state, so that the safety rod 301 still stays in the locking state, and then the gun body 1 is controlled to still not be able to shoot the nails, so as to avoid the phenomenon of 'idle driving'.

The design of the nail pushing direction of the nail pushing block 203 and the obstruction of the nail pushing block 203 to the unlocking state of the safety rod 301 enable the nail pushing block 203 to limit the gun body 1 from entering the shooting state, and therefore the phenomenon of 'idle shooting' is avoided.

In this embodiment, the preset state of the nail row is the state that the nail row is composed of the last nails, that is, the preset state of the nail row is the state when only one or more nails remain in the nail row, and the gun body 1 can avoid idle driving under the condition that only the last nails remain, so the design can reduce the requirement on the manufacturing precision, reduce the requirement on the size precision between the nail pushing block 203 and the nail box 201, thereby reducing the manufacturing cost and improving the cost performance of the product.

Preferably, the preset state of the nail row is the state when only 1 or 2 nails remain in the nail row, which not only can reduce the manufacturing precision, but also avoids waste.

In another embodiment of the present invention, the preset state of the nail row is a state in which all the nails in the nail row are driven out by the gun body 1, that is, a state in which this element of the nail row itself does not exist as a whole, and the nail pushing block 203 extends into the unlocking movement stroke of the safety lever 301 when all the nails in the nail row are driven out by the gun body 1, that is, the gun body 1 enters a state of opening to avoid "idle driving" after all the nails in the nail row are driven out. So set up, rifle body 1 has the best performance of avoiding "empty beating", reduces the loss to the nail.

In the present embodiment, the nail magazine 201 is provided with an avoiding hole 302, the avoiding hole 302 is disposed opposite to the nail pushing block 203, and the avoiding hole 302 can allow the nail pushing block 203 to pass through so as to extend into the unlocking movement stroke of the bumper bar 301.

With such an arrangement, the avoiding hole 302 prevents the gun body 1 from adjusting the structure of the nail box 201 in the conventional design, and only needs to be perforated to realize the function of avoiding idle striking, so that the gun has better adaptability to the nail gun with the conventional structure.

In this embodiment, the nail gun 100 further includes an elastic member, one end of which acts on the nail pushing block 203, and the other end of which is connected to the gun body 1.

It should be noted that the elastic member and the gun body 1 may be connected to each other directly or indirectly.

With such an arrangement, the pushing power of the nail pushing block 203 is automatically driven by the elastic force, and the nail pushing block has better stability.

In the present embodiment, the elastic member is a helical tension spring. The life and stability of the elastic member are better.

It will be appreciated that in other embodiments, the staple pusher 203 may be configured with other types of elements other than springs as the driving element, so long as the driving element is capable of driving the staple pusher 203 to push the staple line into the interior of the gun body 1.

Further, the bumper 301 is provided bent and forms an operating portion 304, and the operating portion 304 is held by a user to operate the bumper 301 to switch between the unlocked state and the locked state.

So configured, the operable degree of the bumper 301 is better.

In summary, the nail gun 100 of the present invention includes: the gun body 1 is used for shooting nails in the nail row; a nail magazine 201 mounted to the gun body 1 for storing nail rows; the nail pushing block 203 is arranged on the nail box 201 and used for pushing nails in the nail row to enter the interior of the gun body 1 from the nail box 201; a handle 202 mounted on the gun body 1 for controlling the gun body 1 to perform nailing operation; a safety lever 301 connected to the handle 202 for unlocking or locking the handle 202; the staple pushing block 203 gradually approaches the safety lever 301 along with the reduction of the length of the staple row, the safety lever 301 has an unlocking movement stroke for switching from the locking state to the unlocking state, and the staple pushing block 203 can extend into the unlocking movement stroke of the safety lever 301 when the staple row is in the preset state and prevent the safety lever 301 from being switched from the locking state to the unlocking state.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The above terms may be understood by those of ordinary skill in the art as appropriate.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims

1. A nail gun, comprising:

a gun body for firing nails in the nail magazine;

the nail box is arranged on the gun body and used for storing the nail rows;

the nail pushing block is gradually close to the safety rod along with the reduction of the length of the nail row, the safety rod has an unlocking movement stroke for switching from a locking state to an unlocking state, and the nail pushing block can stretch into the unlocking movement stroke of the safety rod when the nail row is in a preset state and blocks the safety rod from being switched from the locking state to the unlocking state.

2. The nail gun of claim 1, wherein the predetermined condition of the nail row is a condition of one or more of the nails remaining in the nail row, and the nail pusher extends into an unlocking stroke of the safety bar when one or more of the nails remains in the nail row.

3. The nail gun of claim 1, wherein the predetermined condition of the nail row further includes a condition in which no nail is loaded in the magazine, and the nail pusher extends into the unlocking movement stroke of the safety lever in the condition in which no nail is loaded in the magazine.

4. The nail gun of claim 1, wherein the nail magazine is formed with an escape hole, the escape hole being disposed opposite the nail pushing block, the escape hole allowing the nail pushing block to pass therethrough to extend into an unlocking movement stroke of the safety lever.

5. The nail gun of claim 1, wherein the safety bar is interconnected at both ends and is located on each side of the gun body.

6. The nail gun of claim 1, wherein the safety bar is interconnected at both ends and is located on one side of the gun body.

7. The nail gun of claim 1, further comprising a resilient member, one end of the resilient member acting on the nail pusher, the other end of the resilient member being connected to the gun body.

8. The nail gun of claim 7, wherein the resilient member is a helical tension spring.

9. The nail gun of claim 7, wherein the resilient member is a compression spring or an extension spring.

10. The nail gun of claim 1, wherein the gun body comprises a connecting portion, a gripping portion, a driving portion, and a cross member, wherein two ends of the gripping portion are connected to the connecting portion and the driving portion, respectively, and two ends of the nail magazine are connected to the connecting portion and the cross member, respectively.