Gun head fixing structure, gun head and nail gun

Abstract

The utility model discloses a gun head fixing structure, a gun head and a nail gun, and relates to the technical field of nail gun tools, the gun head fixing structure comprises a gun nozzle seat, a gun nozzle and a fixing sleeve, the gun nozzle is in threaded connection with the gun nozzle seat, and the fixing sleeve is rotationally connected to the peripheral wall of the gun nozzle seat and can be in transmission fit with the gun nozzle; an axial limiting structure is arranged between the fixing sleeve and the gun nozzle seat so as to prevent the fixing sleeve from being separated from the gun nozzle seat; after the gun nozzle is connected with the gun nozzle seat, the fixing sleeve is rotated to lock the gun nozzle and the gun nozzle seat, the fixing sleeve comprises a clamping ring, a clamping groove is formed in the outer circumferential wall of the gun nozzle seat, and the clamping ring is arranged in the clamping groove and embedded in the inner circumferential wall of the fixing sleeve. Compared with the prior art, threaded connection has high connection stability, the firmness degree of connection of the gun head is greatly enhanced through rotation matching and fixing of the fixing sleeve, under large impact force and vibration, it can be guaranteed that the gun nozzle cannot loosen or fall off due to external force through the fixing mode, and the accuracy and stability of shooting are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of nail shooting tools, in particular to a gun head fixing structure, a gun head with the gun head fixing structure, and a nail gun with the gun head fixing structure. Background Art

[0002] In the usage scenarios of related tools such as nail guns, the fixing structure of the gun head plays a crucial role in its normal operation and performance. There may be many problems with the traditional fixing methods of nail gun heads. Some simple connection structures may not provide sufficient stability and reliability. In the prior art, the nail gun head is connected by snap connection, magnetic connection or a combination of snap and spring. Since the nail gun generates certain vibrations and impact forces during operation, after a long time, the connecting components of the gun head are prone to looseness, separation or even loss, resulting in uneven depths of nail shooting, instability of the fixed object, affecting the accuracy and coherence of nail shooting, and may also cause safety hazards. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a gun head fixing structure, which adopts a fixing method of threaded connection and transmission cooperation with a fixing sleeve, and has the structural characteristics of enhancing connection stability and facilitating installation.

[0004] The utility model also provides a gun head and a nail gun with the above gun head fixing structure.

[0005] According to the gun head fixing structure of the utility model, it includes:

[0006] A nozzle seat;

[0007] A nozzle, which is threadedly connected to the nozzle seat;

[0008] A fixing sleeve, which is rotatably connected to the outer peripheral wall of the nozzle seat and can be in transmission cooperation with the nozzle. An axial limiting structure is provided between the fixing sleeve and the nozzle seat to prevent the fixing sleeve from detaching from the nozzle seat; after the nozzle is connected to the nozzle seat, rotate the fixing sleeve to lock the nozzle and the nozzle seat.

[0009] The gun head fixing structure according to the present utility model has at least the following beneficial effects: The fixing sleeve is arranged on the outer peripheral wall of the gun nozzle seat, allowing users to directly contact and rotate the fixing sleeve for operation, improving the convenience of user operation. Moreover, compared with the existing method of using a separable nut to lock the gun nozzle, an axial limiting structure is provided between the fixing sleeve and the gun nozzle seat, preventing the fixing sleeve from detaching from the gun nozzle seat, reducing the possibility of the fixing sleeve being lost, and improving the integrity of the overall structure. In addition, the threaded connection between the gun nozzle and the gun nozzle seat has high connection stability, restricting the movement of the gun nozzle in the axial and radial directions. Coupled with the locking function of the fixing sleeve, it effectively prevents the problem of loosening of the connection between the gun nozzle and the gun nozzle seat, forming a double guarantee, greatly enhancing the firmness of the gun head connection, and ensuring that the gun nozzle will not loosen or fall off due to external forces during the operation of the nail gun, guaranteeing the accuracy and stability of shooting.

[0010] In the gun head fixing structure according to some embodiments of the present utility model, the gun nozzle is provided with a connecting portion, and the connecting portion is sequentially threadedly connected to the fixing sleeve and the gun nozzle seat.

[0011] In the gun head fixing structure according to some embodiments of the present utility model, the axial limiting structure includes a card slot and a snap ring. The card slot is opened on the outer peripheral wall of the gun nozzle seat, and the snap ring is embedded and installed on the inner peripheral wall of the fixing sleeve, and the snap ring is placed in the card slot.

[0012] In the gun head fixing structure according to some embodiments of the present utility model, a socket groove is provided on the outer peripheral wall of the end of the gun nozzle seat, and the fixing sleeve is rotatably sleeved in the socket groove.

[0013] In the gun head fixing structure according to some embodiments of the present utility model, the outer wall of the fixing sleeve is smoothly transitionally connected to the outer wall of the gun nozzle seat.

[0014] In the gun head fixing structure according to some embodiments of the present utility model, the fixing sleeve is provided with a screwing portion and a pressing portion. The pressing portion is located between the gun nozzle seat and the gun nozzle, and the screwing portion is threadedly connected to the outer peripheral wall of the gun nozzle seat to drive the pressing portion to press and fix the gun nozzle.

[0015] In the gun head fixing structure according to some embodiments of the present utility model, the outer wall of the fixing sleeve is provided with anti-slip threads.

[0016] In the gun head fixing structure according to some embodiments of the present utility model, the outer wall of the gun nozzle is provided with two positioning grooves, and the two positioning grooves are symmetrically arranged to operate and rotate the gun nozzle.

[0017] The gun head according to the present utility model includes the gun head fixing structure according to the present utility model.

[0018] The gun head according to the present utility model has at least the following beneficial effects: By using the stable and firm connection of the gun head fixing structure, the gun head can maintain a fixed shooting direction and will not shift due to loosening, which enables the nail to be accurately driven into the predetermined position, improving the construction precision and quality.

[0019] The nail gun according to the present utility model includes the gun head fixing structure described in the present utility model.

[0020] The nail gun according to the present utility model has at least the following beneficial effects: The firm connection can prevent the gun head from tilting easily, improving the accuracy of nail shooting of the nail gun. When the nail gun is in use, it may be subject to large vibrations and impacts. The gun head with a stable connection can better withstand these external forces, protecting the nail gun from wear due to external impacts and ensuring the long-term stable operation of the nail gun.

[0021] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0023] Figure 1 is an exploded view of the gun head fixing structure of the embodiment of the present utility model;

[0024] Figure 2 is a cross-sectional view of the gun head fixing structure of the embodiment of the present utility model;

[0025] Figure 3 is Figure 2 an enlarged view of A shown;

[0026] Figure 4 is a cross-sectional view of the gun head fixing structure of another embodiment of the present utility model;

[0027] Figure 5 is a structural schematic diagram of the fixing sleeve of the gun head fixing structure of the embodiment of the present utility model;

[0028] Figure 6 is a structural schematic diagram of the gun nozzle of the gun head fixing structure of the embodiment of the present utility model.

[0029] Explanation of the Reference Numerals in the Drawings:

[0030] Gun nozzle seat 100; Socket groove 110; Card slot 120;

[0031] Gun nozzle 200; Connection part 210; Card slot 220;

[0032] Snap ring 300;

[0033] Fixed sleeve 400; Screwing part 410; Pressing part 420. Detailed implementation mode

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0035] In the description of the present invention, it should be understood that the orientation descriptions such as up, down, front, back, left, right, etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0036] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0038] In the description of the present invention, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The nail gun head is located at the head of the nail gun and the nail ejection end. The nail gun head has the function of precisely guiding the nail to be ejected along a predetermined direction, ensuring that the nail can be accurately driven into the target position. Moreover, the gun head can help the user quickly determine the shooting position. By aligning the gun head with the target area, the user can more intuitively judge the landing point of the nail. The traditional fixing methods of the nail gun head are mostly snap fixing, magnetic fixing, and the cooperation of snap and spring for fixing. There may be many problems with the above fixing connection methods. Some simple connection structures may not provide sufficient stability and reliability, resulting in the skew of the gun head and affecting the nail shooting accuracy.

[0040] For this reason, as Figures 1 to 5 shown, the gun head fixing structure proposed by the present utility model includes: a nozzle seat 100, a nozzle 200, and a fixing sleeve 400. The nozzle 200 is threadedly connected to the nozzle seat 100, and the fixing sleeve 400 is used to lock the connected nozzle 200 and nozzle seat 100. Among them, the fixing sleeve 400 is rotatably connected to the outer peripheral wall of the nozzle seat 100 and can be in transmission cooperation with the nozzle 200. After the nozzle 200 is connected to the nozzle seat 100, rotating the fixing sleeve 400 can lock the nozzle 200 and the nozzle seat 100. The way the fixing sleeve 400 is arranged on the outer peripheral wall of the nozzle seat 100 allows the user to directly contact and rotate the fixing sleeve 400, improving the convenience of the user's operation. And, an axial limiting structure is provided between the fixing sleeve 400 and the nozzle seat 100 to prevent the fixing sleeve 400 from detaching from the nozzle seat 100. Compared with the existing method of using a separable nut to lock the nozzle, an axial limiting structure is provided between the fixing sleeve 400 and the nozzle seat 100, and the fixing sleeve 400 will not detach from the nozzle seat 100, reducing the possibility of the fixing sleeve 400 being lost and improving the integrity of the overall structure. In addition, the threaded connection method between the nozzle 200 and the nozzle seat 100 has high connection stability, which can limit the movement of the nozzle 200 in the axial and radial directions. Coupled with the locking function of the fixing sleeve 400, it effectively prevents the problem of loosening of the connection between the nozzle 200 and the nozzle seat 100, forming a double guarantee, greatly enhancing the firmness of the gun head connection, and ensuring that the nozzle 200 will not loosen or fall off due to external force during the operation of the nail gun, guaranteeing the shooting accuracy and stability.

[0041] In some embodiments of the present utility model, as Figures 1 to 3As shown, the nozzle 200 is provided with a connecting portion 210. The connecting portion 210 is provided with threads which are located on the outer peripheral wall of the nozzle 200. The connecting portion 210 is threadedly connected to the fixing sleeve 400 and the nozzle seat 100 in sequence. The nozzle seat 100 is also provided with a threaded section which is located on the inner peripheral wall of the nozzle seat 100. The threaded section on the inner peripheral wall is used for threaded connection with the connecting portion 210 of the nozzle 200, and the threaded section on the inner peripheral wall is longer than the threaded section of the connecting portion 210. In some applications, after the connecting portion 210 of the nozzle 200 is screwed into the nozzle seat 100, the user can rotate the fixing sleeve 400 to make it in threaded driving cooperation with the connecting portion 210, thereby pressing against the nozzle seat 100 or pressing against the nozzle 200, generating a pre-tightening force between the nozzle 200 and the nozzle seat 100, locking the nozzle 200, and preventing loosening between the nozzle 200 and the nozzle seat 100. In some embodiments, a limiting ring (not shown in the figure) is provided at the bottom end of the threaded section on the inner peripheral wall of the nozzle seat, and the limiting ring is used to limit the insertion depth of the nozzle.

[0042] In some embodiments of the present utility model, as Figure 1 shown, the axial limiting structure includes a clamping groove 120 and a clamping ring 300. The clamping groove 120 is opened on the outer peripheral wall of the nozzle seat 100, and the clamping ring 300 is embedded in the inner peripheral wall of the fixing sleeve 400, and the clamping ring 300 is placed in the clamping groove 120. In some implementations, in the central line direction of the fixing sleeve 400, the width of the clamping groove 120 is greater than the width of the clamping ring 300, so that the fixing sleeve 400 can have a certain displacement in the axial direction, and further, it can have a displacement in the axial direction when rotating. Optionally, the clamping ring 300 is made of a metal material with good elasticity, such as spring steel, etc. In addition, the clamping ring 300 is provided with an opening, and the opening of the clamping ring 300 can be used to adjust the size of the clamping ring 300 to better embed and install on the inner peripheral wall of the fixing sleeve 400.

[0043] In some other embodiments of the present utility model, the axial limiting structure includes an annular protrusion and an annular groove (not shown in the figure). For example, the nozzle seat is provided with an annular protrusion, and the inner peripheral wall of the fixing sleeve is provided with an annular groove. The annular protrusion is rotatably arranged in the annular groove to limit the axial position of the fixing sleeve relative to the nozzle seat. And, the width of the annular groove is greater than the width of the annular protrusion, so that the fixing sleeve can have a displacement in the axial direction relative to the nozzle seat.

[0044] In some embodiments of the present utility model, as Figures 1 to 3 shown, the outer peripheral wall of the end of the nozzle seat 100 is provided with a socket groove 110. The socket groove 110 is annular and its central axis coincides with the central axis of the nozzle seat 100. The groove wall of the socket groove 110 is a smooth plane, and the fixing sleeve 400 is rotatably sleeved in the socket groove 110. The design of rotatable sleeving makes the connection between the nozzle seat 100 and the fixing sleeve 400 more flexible and stable.

[0045] Further, in some embodiments of the present utility model, such as Figure 2 As shown, the outer wall of the fixing sleeve 400 is smoothly transitionally connected to the outer wall of the nozzle seat 100. The smooth transitional connection avoids the generation of stress concentration phenomenon, and the overall aesthetics is better. When the nozzle 200 is subjected to an external force, the force can be evenly dispersed on the entire structure, and this smooth transition can effectively reduce the accumulation of dust, impurities, etc. at the connection, reducing the risk of affecting the equipment performance and life due to dirt accumulation. Specifically, the nozzle seat 100 has a cylindrical structure, and the maximum outer diameter of the fixing sleeve 400 is equal to the maximum outer diameter of the nozzle seat 100.

[0046] In some embodiments of the present utility model, such as Figures 4 to 5 As shown, the fixing sleeve 400 is provided with a screwing portion 410 and a pressing portion 420. The pressing portion 420 is located between the nozzle seat 100 and the nozzle 200. There is a through hole in the center of the pressing portion 420 for the nozzle 200 to pass through to be connected to the nozzle seat 100, and the hole wall of the through hole is in clearance fit connection with the outer peripheral wall of the nozzle 200. Specifically, the screwing portion 410 is threadedly connected to the outer peripheral wall of the nozzle seat 100 to drive the pressing portion 420 to press and fix the nozzle 200. Through the threaded connection method, the pressing portion 420 can stably apply pressure to firmly fix the fixing sleeve 400 between the nozzle seat 100 and the nozzle 200, ensuring that the nozzle 200 will not loosen or fall off due to vibration or external force during use.

[0047] In some embodiments of the present utility model, such as Figure 5 As shown, the outer wall of the fixing sleeve 400 is provided with anti-slip lines. The anti-slip lines can greatly increase the friction between the hand and the fixing sleeve 400. When the operator needs to perform a rotational operation on the fixing sleeve 400, such as screwing it to the nozzle seat 100 or adjusting its position, the anti-slip lines can effectively prevent the hand from slipping, making the operation more accurate and stable. Optionally, the anti-slip lines can be designed as diamond patterns, horizontal lines, dot patterns, wave patterns, etc.

[0048] In some embodiments of the present utility model, such as Figure 6As shown, the outer wall of the gun nozzle 200 is provided with a locking groove 220, the gun nozzle 200 has a plurality of protrusions and the plurality of protrusions are connected together, the plurality of protrusions are respectively a first layer of protrusions, a second layer of protrusions and a third layer of protrusions, wherein the first layer of protrusions is the highest protrusion, and a wall surface on one side of the first layer of protrusions abuts against the pressing portion 420 of the fixing sleeve 400, the first layer of protrusions is provided with a locking groove 220, there are two locking grooves 220, and the two locking grooves 220 are symmetrically arranged to operate and rotate the gun nozzle 200, the height of the second layer of protrusions is smaller than that of the first layer of protrusions and larger than that of the third layer of protrusions, the three layers of protrusions are decreasing in a direction away from the connecting portion 210 and the three layers of protrusions are symmetrical on the left and right. The symmetrically arranged locking grooves 220 ensure that the force is more even when the gun nozzle 200 is rotated. Whether it is rotated clockwise or counterclockwise, it can ensure that the gun nozzle 200 changes its angle smoothly, avoiding shaking or deviation of the gun nozzle 200 due to uneven force. When the angle of the gun nozzle 200 needs to be adjusted, the operator can use special tools or fingers to press the locking grooves 220, and with the help of the fulcrum provided by the locking grooves 220, the rotation operation of the gun nozzle 200 can be easily achieved.

[0049] In some embodiments of the present invention, Figure 2 As shown, the gun nozzle 200, the gun nozzle seat 100, the retaining ring 300, and the fixing sleeve 400 are coaxially arranged. It should be noted that after the retaining ring 300 is embedded and installed on the inner circumferential wall of the fixing sleeve 400, the fixing sleeve 400 is inserted into the sleeve groove 110 of the gun nozzle seat 100. After the gun nozzle 200 and the gun nozzle seat 100 are threadedly matched, the fixing sleeve 400 is rotated to lock the gun nozzle 200 and the gun nozzle seat 100. In summary, the fixing sleeve 400 is threadedly connected with the connecting part 210 or the gun nozzle seat 100, that is, the fixing sleeve 400 is rotatably mounted on the gun nozzle seat 100 and is loosely matched with the gun nozzle seat 100, and the hole in the middle part of the pressing part 420 is threadedly connected with the connecting part 210; or, the pressing part 420 of the fixing sleeve 400 is rotatably mounted on the connecting part 210 and is loosely matched with the connecting part 210, and the threaded part 410 of the fixing sleeve 400 is threadedly matched with the outer circumferential wall of the gun nozzle seat 100. Furthermore, the fixing sleeve 400 can press against the gun nozzle 200, so that a thread pre-tightening force is generated between the gun nozzle 200 and the gun nozzle seat 100, thereby achieving a locking and anti-loosening effect.

[0050] It is easy to understand that the internal channel of the gun nozzle 200 corresponds to the internal channel of the gun nozzle seat 100 , so that the nails guided out of the gun nozzle seat 100 can be shot out from the internal channel of the gun nozzle 200 .

[0051] The gun head according to the embodiment of the utility model includes the gun head fixing structure according to the embodiment of the utility model.

[0052] The gun head according to the embodiment of the present utility model, by adopting the gun head fixing structure of the embodiment of the present utility model, has the characteristics of stable and firm connection and complete structure. After the fixing sleeve 400 connects the nozzle 200 and the nozzle seat 100, the two can be locked by rotation, effectively preventing the problem of loose connection between the nozzle 200 and the nozzle seat 100, and effectively avoiding the problem of loosening and loss of the fixing sleeve 400, greatly enhancing the firmness of the connection of the gun head.

[0053] Other components and operations of the gun head according to the embodiment of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0054] The nail gun according to the embodiment of the present utility model includes the gun head fixing structure according to the embodiment of the present utility model.

[0055] The nail gun according to the embodiment of the present utility model, by adopting the gun head fixing structure of the embodiment of the present utility model, has the characteristics of stable and firm connection of the gun head, not easy to skew, thereby improving the nail shooting efficiency. The nozzle 200 can be firmly fixed on the nozzle seat 100 and is not easy to loosen due to vibration or impact force. Even under long-term and high-intensity use, it can maintain a stable connection state to ensure the accuracy and coherence of nail shooting.

[0056] Other components and operations of the nail gun according to the embodiment of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0057] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge scope of those of ordinary skill in the art.

Claims

1. The gun head fixing structure is characterized in that, Comprising: Nozzle seat; Nozzle, threadedly connected to the nozzle seat; Fixed sleeve, rotatably connected to the outer peripheral wall of the nozzle seat and capable of driving cooperation with the nozzle. An axial limiting structure is provided between the fixed sleeve and the nozzle seat to prevent the fixed sleeve from detaching from the nozzle seat. After the nozzle is connected to the nozzle seat, rotate the fixed sleeve to lock the nozzle and the nozzle seat.

2. The gun head fixing structure according to claim 1, wherein: The nozzle is provided with a connecting portion, and the connecting portion is threadedly connected to the fixed sleeve and the nozzle seat in sequence.

3. The gun head fixing structure according to claim 1 or 2, characterized in that: The axial limiting structure includes a clamping groove and a clamping ring. The clamping groove is formed on the outer peripheral wall of the nozzle seat, and the clamping ring is embedded in the inner peripheral wall of the fixed sleeve, and the clamping ring is placed in the clamping groove.

4. The gun head fixing structure according to claim 1, characterized in that: A socket groove is provided on the outer peripheral wall of the end of the nozzle seat, and the fixed sleeve is rotatably sleeved in the socket groove.

5. The gun head fixing structure according to claim 4, characterized in that: The outer wall of the fixed sleeve is smoothly transitionally connected to the outer wall of the nozzle seat.

6. The gun head fixing structure according to claim 1, characterized in that: The fixed sleeve is provided with a screwing portion and a pressing portion. The pressing portion is located between the nozzle seat and the nozzle. The screwing portion is threadedly connected to the outer peripheral wall of the nozzle seat to drive the pressing portion to press and fix the nozzle.

7. The gun head fixing structure according to claim 1, characterized in that: The outer wall of the fixed sleeve is provided with anti-slip lines.

8. The gun head fixing structure according to claim 1, characterized in that: The outer wall of the nozzle is provided with two positioning grooves, and the two positioning grooves are symmetrically arranged to operate and rotate the nozzle.

9. The lance head, characterized in that: Including the gun head fixing structure according to any one of claims 1 to 8.

10. Staple gun, characterized in that: Including the gun head fixing structure according to any one of claims 1 to 8.

Images