Portable fastener structure for nail gun

By optimizing the window structure of the firing locking shell and firing locking sleeve of the portable nail gun fastener, the problems of insufficient firing speed and smooth operation in the existing technology have been solved, realizing smooth sliding and stable reset of the locking pin, and improving the convenience and stability of operation.

CN223820486UActive Publication Date: 2026-01-23周广豪
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Patent Information

Application Number
CN202520117480.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-18
Publication Date
2026-01-23
Estimated Expiration
2035-01-18

AI Technical Summary

Technical Problem

The existing fastener structure of nail guns has shortcomings in firing speed and smoothness of operation. In particular, the design of the firing locking shell and firing locking sleeve results in slow response, insensitive operation, and an uneven ejection process that is prone to jamming.

Method used

A portable fastener structure was designed, in which the window structure of the firing locking shell and the firing locking sleeve was improved. The end of the first window facing the firing direction is a straight edge and is perpendicular to the firing direction. The end of the second window away from the firing direction is provided with an inclined window, and the inclined window is opposite to the first inclined edge. The limiting edge is perpendicular to the second window, thus optimizing the movement trajectory of the locking pin.

Benefits of technology

It achieves smooth sliding and stable reset of the locking pin, improves firing speed and operation smoothness, avoids jamming, and enhances the convenience and stability of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable fastener structure for a nail gun. The portable fastener structure comprises a percussion locking shell and a sleeve which are sleeved with each other, first windows are respectively formed in two opposite sides of the percussion locking shell; second windows are respectively formed in two opposite sides of the percussion locking sleeve; one end, facing the firing direction, of the first window is a straight edge and corresponds to the firing direction in a right-angle manner; a first inclined edge is arranged at one end, away from the firing direction, of the first window; an inclined window communicated with the second window is arranged at one end, far away from the percussion direction, of the second window; the inclination directions of each first inclined edge and each inclined window which are adjacent correspond to each other in opposite directions; at least one inclined window is provided with a limiting edge. The straight edge of the first window corresponds to the percussion direction in a right-angle mode, so that the locking pin is driven to smoothly slide in the second window to be clamped into the inclined window to be limited and fixed in the resetting process. The inclined window and the first inclined edge which are adjacent to each other are inclined in opposite directions, so that the locking pin can be forced to smoothly realize firing, and the operation is not blocked.
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Description

Technical Field

[0001] This utility model belongs to the field of nail gun technology, and in particular relates to a portable fastener structure for nail guns. Background Technology

[0002] A nail gun is a fastening tool that uses blank cartridges, gas, or compressed air as power to drive nails into a building structure. The fastening mechanism in existing nail guns is quite critical, as it has a significant impact on the firing operation.

[0003] Fasteners, as a modern industrial product, have many advantages. They are tools that use the high-temperature and high-pressure gas generated by the explosion of gunpowder as power to drive steel nails into the substrate to be fastened. They are mainly divided into traditional fasteners and portable fasteners.

[0004] Traditional nail guns use a separate design for the fastener and blank cartridge. During installation, the blank cartridge is first loaded into the nail gun, then the nail is inserted into the barrel, and pressing the barrel fires the shot, ejecting the spent cartridge. Blank cartridges are made of metal, resulting in higher costs. Their cumbersome loading process and low efficiency have led to their gradual obsolescence from the market.

[0005] Currently, portable fasteners are the main type, which are integrated nail guns. The gunpowder is encapsulated in a plastic capsule at the tail of the nail. The gunpowder is ignited by a firing pin, and the gunpowder explodes in the barrel, propelling the nail. The powerful shock wave drives the nail into the base. Portable fasteners have now become the mainstream in the market and are widely used in construction, decoration, exploration, and outdoor applications.

[0006] However, the current fastener is slow and insensitive in terms of firing speed due to the limitations of the firing locking housing and firing locking sleeve structure. Specifically, the firing window in the two cooperating components mentioned above has a flawed angle design. Especially when pressing hard to fire and reset, there is a certain sense of jerkiness, or even jamming, making operation awkward.

[0007] Moreover, the ejection process after firing is not smooth and is prone to jamming, causing inconvenience to workers. Utility Model Content

[0008] This invention provides a portable fastener structure for nail guns to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, this utility model provides a portable fastener structure for nail guns, including a firing locking shell and a firing locking sleeve, wherein the firing locking sleeve is coaxially and movably sleeved in the firing locking shell;

[0010] The firing locking housing has a first window on each of its opposite sides, which allows its inner cavity to communicate with the outside.

[0011] The firing locking sleeve has a second window on each of its opposite sides that connects its inner cavity to the outside, and the second window and the first window are in the same direction and correspond to each other.

[0012] The end of each first window facing the firing direction is a straight edge, and it is perpendicular to the firing direction; the end of each first window away from the firing direction is provided with a first inclined edge, and the inclination directions of each first inclined edge are opposite to each other.

[0013] Each of the second windows has an inclined window connected to the end away from the firing direction, and the inclined directions of each inclined window are opposite to each other;

[0014] The tilting directions of each adjacent first tilted edge and the tilted window are opposite to each other;

[0015] At least one of the inclined windows is provided with a limiting edge near the direction of the second window at the point of connection with the second window.

[0016] As a further improvement, the limiting edge is perpendicular to the second window.

[0017] As a further improvement, the angle between the tilted window and the second window is an obtuse angle.

[0018] As a further improvement, the angle between the tilted window and the second window is 75 degrees.

[0019] The beneficial technical effects of this utility model are as follows:

[0020] The end of the first window facing the firing direction has been improved by making the edge there a straight edge, and it is perpendicular to the firing direction. This structure makes it easier for the locking pin to slide smoothly in the second window during the reset process after firing, and smoothly lock into the inclined window to stay in place.

[0021] The end of the second window furthest from the firing direction has been improved by adding a tilted window connected to it. Furthermore, each adjacent tilted window and the first tilted edge are tilted in opposite directions, which forces the locking pin to fire smoothly without any jamming. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model before firing;

[0023] Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model in the firing state;

[0024] Figure 3 This is a three-dimensional schematic diagram of the structure of this utility model after firing;

[0025] Figure 4 This is a three-dimensional schematic diagram of the firing locking sleeve in this utility model;

[0026] Figure 5 This is a schematic front view of the firing locking sleeve in this utility model;

[0027] Figure 6 This is a top view illustrating the structure of the firing locking sleeve in this utility model;

[0028] Figure 7 This is a schematic front view of the structure of the firing locking housing in this utility model;

[0029] Figure 8 This is a three-dimensional schematic diagram of the structure of this utility model in a nail gun;

[0030] Figure 9 This is a schematic front sectional view of the structure of this utility model in a nail gun.

[0031] In the picture:

[0032] 100. Firing locking housing; 101. First window; 102. First inclined edge; 103. Straight edge;

[0033] 200. Firing locking sleeve; 201. Second window; 202. Inclined window; 203. Limiting edge;

[0034] 3. Lock the pin. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] like Figures 1 to 9 As shown, this utility model provides a portable fastener structure for a nail gun, including a firing locking housing 100 and a firing locking sleeve 200, wherein the firing locking sleeve 200 is coaxially and movably sleeved in the firing locking housing 100;

[0039] The firing locking housing 100 is provided with first windows 101 on opposite sides, which open their inner cavities to the outside.

[0040] The firing locking sleeve 200 has a second window 201 on each of its opposite sides, which communicates with the outside. The second window 201 and the first window 101 are in the same direction and correspond to each other. The locking pin 3 is placed in the first window 101 and the second window 201 and can move within the second window 201.

[0041] Each of the first windows 101 has a straight edge 103 at the end facing the firing direction, and it is perpendicular to the firing direction. This structure facilitates the smooth reset of the locking pin 3 during the reset process after firing, without producing a jerky feeling or excessive friction. Figure 3 As shown in the post-firing state, the straight edge 103 can push the locking pin 3 to the right side of the diagram to reset in a fixed direction. The angle is correct, the operation is smooth, and there is no jamming. Previously, this position was at an angle, which exerted a certain lateral force, making operation difficult and inconvenient, and it was easy to get stuck.

[0042] Each of the first windows 101 has a first inclined edge 102 at the end away from the firing direction. The inclined design allows the inclined edge to squeeze the locking pin 3 when pressed down, forcing it to gradually enter the second window 201. Furthermore, the inclination directions of each of the first inclined edges 102 are opposite, that is, the inclination angles of the first inclined edges 102 on both sides are opposite, which allows the locking pin 3 to move normally.

[0043] Each of the second windows 201 has an inclined window 202 communicating with its end away from the firing direction. The inclined window 202 is used to hold the locking pin 3. Furthermore, the inclined directions of each of the inclined windows 202 are opposite to each other, that is, this structure is also to accommodate the normal displacement of the locking pin 3. In other words, when the first inclined edge 102 applies pressure to the locking pin 3, it can allow the locking pin 3 to gradually disengage from the inclined window 202 so that it can enter the second window 201.

[0044] The tilting directions of each adjacent first tilted edge 102 and tilted window 202 are opposite to each other. That is, when the first tilted edge 102 applies pressure to the locking pin 3, the movement direction of the locking pin 3 is exactly in line with the arrangement direction of the tilted window 202, which makes it easier for the locking pin 3 to make a firing action. Its movement direction is more reasonable and the operation is more convenient.

[0045] At least one of the inclined windows 202 and the second window 201 has a limiting edge 203 near the direction of the second window 201 at the connection point. After the locking pin 3 enters the inclined window 202, it will be blocked and limited by the limiting edge 203 to prevent it from re-entering the second window 201 to perform a firing action (such as...). Figure 1 and Figure 8 (As shown in the pre-firing state). In contrast, previous products did not have a tilted window here; instead, it was a simple right-angle window, making it difficult for the locking pin 3 to slide laterally into the second window 202 due to the angle.

[0046] The limiting edge 203 is used to restrict the displacement of the locking pin 3. Only when the locking housing is pressed down, and the first inclined edge 102 is used to press the locking pin 3, can it enter the second window 201 to achieve firing (e.g., Figure 2 and Figure 9 (As shown in the firing state). During this process, the tilted window 202 is at a certain angle, making it easier for the locking pin 3 to smoothly enter the second window 202, requiring less force from the hand and without any noticeable hesitation.

[0047] As a further improvement, the limiting edge 203 and the second window 201 are perpendicular to each other. This structure helps to stably limit the displacement of the locking pin 3, making the firing state more stable and less prone to accidental discharge.

[0048] As a further improvement, the angle between the tilted window 202 and the second window 201 is an obtuse angle. This structure conforms to the movement trajectory of the locking pin 3 when it is pressed by the first tilted edge 102. That is, the movement trajectory during firing, in both direction and angle, improves the smoothness of operation and makes it more convenient to operate.

[0049] The beneficial technical effects of this utility model are as follows:

[0050] The end of the first window facing the firing direction has been improved by making the edge there a straight edge, and it is perpendicular to the firing direction. This structure makes it easier for the locking pin to slide smoothly in the second window during the reset process after firing, and smoothly lock into the inclined window to stay in place.

[0051] The end of the second window furthest from the firing direction has been improved by adding a tilted window connected to it. Furthermore, each adjacent tilted window and the first tilted edge are tilted in opposite directions, which forces the locking pin to fire smoothly without any jamming.

[0052] This invention can independently complete the three steps of integrated loading, press-to-fire, and manual ejection. Furthermore, the structure has been modified to adapt to existing designs, making it durable, stable in performance, and easier for workers to operate.

[0053] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A portable fastener structure for a nail gun, comprising a firing locking housing (100) and a firing locking sleeve (200), wherein the firing locking sleeve (200) is coaxially and movably sleeved within the firing locking housing (100); The firing locking housing (100) has a first window (101) on each of its opposite sides, which allows its inner cavity to communicate with the outside. The firing locking sleeve (200) has a second window (201) on each of its opposite sides, which allows its inner cavity to communicate with the outside. The second window (201) and the first window (101) are in the same direction and correspond to each other. Its characteristics are: Each of the first windows (101) has a straight edge (103) at the end facing the firing direction, and is perpendicular to the firing direction; each of the first windows (101) has a first inclined edge (102) at the end away from the firing direction, and the inclined directions of each first inclined edge (102) are opposite to each other; Each of the second windows (201) has an inclined window (202) connected to the end away from the firing direction, and the inclined directions of each of the inclined windows (202) are opposite to each other; The tilting directions of each adjacent first tilted edge (102) and tilted window (202) are opposite to each other; At least one of the inclined windows (202) is provided with a limiting edge (203) in the direction close to the second window (201) at the connection between the inclined window (202) and the second window (201).

2. The portable fastener structure for a nail gun according to claim 1, characterized in that: The limiting edge (203) and the second window (201) are perpendicular to each other.

3. The portable fastener structure for a nail gun according to claim 1, characterized in that: The angle between the tilted window (202) and the second window (201) is an obtuse angle.