Gun nozzle anti-loosening structure, nail gun head and nail gun

Abstract

The utility model relates to the technical field of fastening tools, in particular to a gun nozzle anti-loose structure, a nail gun head and a nail gun, which comprises a gun nozzle telescopic head and a gun nozzle, an internal thread part and a guide part are arranged in the gun nozzle telescopic head, and an external thread part is arranged on the gun nozzle to be inserted into the gun nozzle telescopic head to be in threaded connection with the internal thread part; a rotation stopping piece is movably arranged in the guide part, and a first elastic reset piece is arranged on the side, away from the gun nozzle, of the rotation stopping piece; a first clamping part is arranged on the side, facing the gun nozzle, of the rotation stopping piece, and a second clamping part is arranged at the end, facing the rotation stopping piece, of the gun nozzle. And the first clamping part and the second clamping part are matched to limit rotation of the gun nozzle.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening tools, in particular to a gun nozzle anti-loosening structure, a nail gun head and a nail gun. Background Art

[0002] Currently, the nozzles of nail guns are mostly threaded to facilitate installation and disassembly; however, since the nail gun generates high-frequency vibrations when in use, the threaded connection of the nozzle is easily loosened, which affects the use effect of the nail gun. Utility Model Content

[0003] In order to solve the problem that the existing gun nozzle is easy to loosen, the utility model provides a gun nozzle anti-loosening structure.

[0004] The technical solution of the utility model is:

[0005] In the first aspect, the utility model provides a gun nozzle anti-loosening structure, which is characterized by: comprising:

[0006] The telescopic head of the gun nozzle has an internal threaded portion and a guide portion arranged therein;

[0007] A gun nozzle, on which an external threaded portion is arranged to be inserted into the gun nozzle telescopic head and threadedly connected with the internal threaded portion;

[0008] Among them, a stopper is movably arranged in the guide part, and a first elastic reset part is arranged on the side of the stopper away from the gun nozzle; a first clamping part is arranged on the side of the stopper facing the gun nozzle, and a second clamping part is arranged on an end of the gun nozzle facing the stopper; the first clamping part cooperates with the second clamping part to limit the rotation of the gun nozzle.

[0009] Further, the first clamping portion includes a plurality of first protrusions, and a first groove is formed between every two of the first protrusions; the second clamping portion includes a plurality of second protrusions, and a second groove is formed between every two of the second protrusions; the first protrusion is suitable for rotating and snapping into the corresponding second groove; and the second protrusion is suitable for rotating and snapping into the corresponding first groove.

[0010] Furthermore, multiple first protrusions are distributed in a circle, and first guide slopes are set on both sides of the extension direction of the first protrusions; multiple second protrusions are distributed in a circle, and second guide slopes are set on both sides of the extension direction of the second protrusions; the shape of the first protrusion is adapted to the second groove; and the shape of the second protrusion is adapted to the first groove.

[0011] Furthermore, the guide portion is configured as a guide groove provided on a side wall of the telescopic head of the gun nozzle, and the anti-rotation member is slidably connected in the guide groove.

[0012] Furthermore, the guide grooves are provided as at least two and are evenly distributed circumferentially on the side walls of the telescopic head of the gun muzzle; the anti-rotation member includes a main body and a sliding portion extending from the main body and corresponding to the guide groove, and the sliding portion is suitable for sliding along the guide groove.

[0013] Furthermore, the main body has the first clamping portion on a side facing the gun nozzle; and the main body has a positioning groove for accommodating the first elastic reset member on a side facing away from the gun nozzle.

[0014] In a second aspect, a nail gun head comprises the above-mentioned gun nozzle anti-loosening structure and a bracket, wherein the bracket is connected to a telescopic head mounting portion via a second elastic reset member, and the telescopic head mounting portion is used to mount the gun nozzle telescopic head.

[0015] Furthermore, the telescopic head mounting part includes a gun groove part movably connected to the bracket, and the gun nozzle telescopic head is movably connected in the gun groove part; the telescopic head mounting part also includes a gun nozzle telescopic rod, which is arranged on the gun groove part and has a limiting part; a movable part is arranged on the gun nozzle telescopic head corresponding to the limiting part, and the limiting part is used to limit the moving stroke of the movable part and the gun nozzle telescopic head; wherein, the second elastic reset part is connected between the gun groove part and the bracket and / or the second elastic reset part is connected between the gun nozzle telescopic rod and the bracket.

[0016] Furthermore, the telescopic head mounting portion also includes a connecting plate for connecting the gun nozzle telescopic rod to the gun groove member.

[0017] According to a third aspect of the utility model, a nail gun is also provided, characterized in that it includes the nail gun head as described above.

[0018] The beneficial effects achieved by the utility model are:

[0019] The gun nozzle anti-loosening structure of the utility model is characterized in that the gun nozzle is threadedly connected to the internal threaded part in the telescopic head of the gun nozzle, and a guide part is also provided in the telescopic head of the gun nozzle, on which a rotation-stopping member is movably provided, and the rotation-stopping member can be guided and moved on the guide part; when in use, the gun nozzle is screwed into the telescopic head of the gun nozzle until the second clamping part on the gun nozzle clamps the first clamping part on the rotation-stopping member, because the rotation-stopping member can only translate on the guide part but cannot rotate, and the first elastic reset member is also abutted behind the rotation-stopping member, which can provide the gun nozzle with a certain elastic buffer stroke. Therefore, when the gun nozzle is clamped and matched with the rotation-stopping member, it can ensure that the first clamping part and the second clamping part are smoothly clamped, and at the same time, the possibility of the gun nozzle loosening during use can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, are used to explain the principles of the present application.

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the explosion structure after the gun groove part is removed in the embodiment of the present application;

[0025] Figure 3 yes Figure 2 A magnified image of point A;

[0026] Figure 4 It is a schematic diagram of the matching connection structure between the gun nozzle and the gun nozzle telescopic head according to the embodiment of the present application.

[0027] In the figure,

[0028] 100, telescopic head of gun nozzle; 200, gun nozzle; 300, first elastic return member; 400, bracket; 500, telescopic head mounting part; 600, second elastic return member; 700, movable part; 110, internal threaded part; 120, guide part; 130, anti-rotation part; 131, first clamping part; 1311, first protrusion; 1312, first groove; 1313, first guiding slope; 132, main body; 133, sliding part; 134, positioning groove; 210, external threaded part; 220, second clamping part; 221, second protrusion; 222, second groove; 223, second guiding slope; 510, gun groove part; 520, telescopic rod of gun nozzle; 521, limit part; 530, connecting plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0030] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below ······" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0032] Embodiment 1

[0033] An anti-loosening structure for a gun nozzle shown in an embodiment of the present application includes a gun nozzle telescopic head 100, in which an internal threaded portion 110 and a guide portion 120 are arranged, and a gun nozzle 200, on which an external threaded portion 210 is arranged to be inserted into the gun nozzle telescopic head 100 and threadedly connected with the internal threaded portion 110; a stopper 130 is movably arranged in the guide portion 120, and a first elastic reset member 300 is arranged on the side of the stopper 130 away from the gun nozzle 200; a first clamping portion 131 is arranged on the side of the stopper 130 facing the gun nozzle 200, and a second clamping portion 220 is arranged on the end of the gun nozzle 200 facing the stopper 130; the first clamping portion 131 cooperates with the second clamping portion 220 to limit the rotation of the gun nozzle 200.

[0034] In this embodiment, the gun nozzle 200 is threadedly connected to the internal threaded portion 110 in the gun nozzle telescopic head 100, and a guide portion 120 is also provided in the gun nozzle telescopic head 100, and a stopper 130 is movably provided on the guide portion 120, and the stopper 130 can be guided and moved on the guide portion 120; when in use, the gun nozzle 200 is screwed into the gun nozzle telescopic head 100 until the second clamping portion 220 on the gun nozzle 200 clamps the first clamping portion 131 on the stopper 130. Since the stopper 130 can only translate on the guide portion 120 but cannot rotate, and the stopper 130 is also abutted against the first elastic reset member 300, which can provide the gun nozzle 200 with a certain elastic buffer stroke, when the gun nozzle 200 is clamped and matched with the stopper 130, it can ensure that the first clamping portion 131 and the second clamping portion 220 are smoothly clamped, while also reducing the possibility of the gun nozzle 200 loosening during use.

[0035] Optionally, the first elastic member 300 may be configured as a spring or an elastic telescopic rod, etc.; preferably, in this embodiment, it is configured as a spring to simplify the structure and reduce the cost.

[0036] In an optional embodiment, the first clamping portion 131 includes a plurality of first protrusions 1311, and a first groove 1312 is formed between every two first protrusions 1311; the second clamping portion 220 includes a plurality of second protrusions 221, and a second groove 222 is formed between every two second protrusions 221; the first protrusion 1311 is suitable for rotating and snapping into the second groove 222; the second protrusion 221 is suitable for rotating and snapping into the first groove 1312.

[0037] In this embodiment, the first protrusion 1311 is suitable for rotating and snapping into the second groove 222 to limit the first protrusion 1311 through the second groove 222; the second protrusion 221 is suitable for rotating and snapping into the first groove 1312 to limit the second protrusion 221 through the first groove 1312, thereby effectively preventing the nozzle 200 from rotating.

[0038] In an optional embodiment, multiple first protrusions 1311 are distributed in a circle, and first guide slopes 1313 are set on both sides of the extension direction of the first protrusions 1311; multiple second protrusions 221 are distributed in a circle, and second guide slopes 223 are set on both sides of the extension direction of the second protrusions 221; the shape of the first protrusion 1311 is adapted to the second groove 222; the shape of the second protrusion 221 is adapted to the first groove 1312.

[0039] In this embodiment, multiple first protrusions 1311 and multiple second protrusions 221 are respectively arranged to be distributed in a circle, which can be adapted to the shape of the gun nozzle 200 and facilitate the clamping fit between the first clamping portion 131 and the second clamping portion 220; the setting of the first guiding bevel 1313 and the second guiding bevel 223 enables the gun nozzle 200 to be screwed into the gun nozzle telescopic head 100 while the second protrusion 221 can be smoothly clamped into the first groove 1312 and the first protrusion 1311 can be smoothly clamped into the second groove 222 without interference; the shape of the first protrusion 1311 is adapted to the second groove 222; the shape of the second protrusion 221 is adapted to the first groove 1312, which can make the clamping effect more stable and reliable, thereby effectively preventing the gun nozzle 200 from loosening; optionally, the inclination angle of the first guiding bevel 1313 and the second guiding bevel 223 is 45 degrees plus or minus 5 degrees, and preferably, the inclination angle is set to 45 degrees.

[0040] In an optional embodiment, the guide portion 120 is configured as a guide groove opened on the side wall of the telescopic head of the gun muzzle 100, and the anti-rotation member 130 is slidably connected in the guide groove; the translation of the anti-rotation member 130 is guided by the guide groove to prevent the anti-rotation member 130 from rotating; and the processing of the guide groove is relatively simple, and at the same time, a part of it has the effect of hollowing out to reduce weight, which facilitates the lightweight design of the overall structure.

[0041] In an optional embodiment, at least two guide grooves are provided and evenly distributed on the side wall of the telescopic head 100 of the gun muzzle; the anti-rotation member 130 includes a main body 132 and a plurality of sliding parts 133 extending from the main body 132 and provided corresponding to the guide grooves, and the sliding parts 133 slide along the guide grooves.

[0042] In this embodiment, the design of multiple guide grooves guides the sliding parts 133 on the anti-rotation member 130 respectively, so that the movement of the anti-rotation member 130 is more stable and will not deviate.

[0043] In an optional embodiment, the main body 132 has a first clamping portion 131 on the side facing the gun nozzle 200; the main body 132 has a positioning groove 134 for accommodating the first elastic return member 300 on the side away from the gun nozzle 200; the design of the anti-rotation member 130 enables it to have three functions. First, it can cooperate with the gun nozzle 200 to prevent the gun nozzle from loosening; second, the sliding portion 133 is extended to play a role of translational guidance; third, the design of the positioning groove 134 can position the first elastic return member 300 to ensure its stable guidance. This design makes the overall structure of the embodiment of the present application more compact; preferably, the anti-rotation member 130 is an integrated molding design, which is convenient for batch processing and production, and has higher reliability in use.

[0044] Embodiment 2

[0045] A nail gun head includes the above-mentioned gun nozzle anti-loosening structure and a bracket 400, the bracket 400 is connected to a telescopic head mounting part 500 via a second elastic reset member 600, and the telescopic head mounting part 500 is used to mount a gun nozzle telescopic head 100; when in use, the gun nozzle 200 is screwed into the gun nozzle telescopic head 100 to perform primary compression buffering via the first elastic reset member 300; and the telescopic head mounting part 500 and the gun nozzle telescopic head 100 thereon are subjected to secondary compression buffering via the second elastic reset member 600.

[0046] In an optional embodiment, the telescopic head mounting part 500 includes a gun groove part 510 movably connected to the bracket 400, and the gun nozzle telescopic head 100 is movably connected in the gun groove part 510; the telescopic head mounting part 500 also includes a gun nozzle telescopic rod 520, which is arranged on the gun groove part 510 and has a limiting part 521; a movable part 700 is arranged on the gun nozzle telescopic head 100 corresponding to the limiting part 521, and the limiting part 521 is used to limit the moving stroke of the movable part 700 and the gun nozzle telescopic head 100; wherein, a second elastic reset part 600 is connected between the gun groove part 510 and the bracket 400 and / or a second elastic reset part 600 is connected between the gun nozzle telescopic rod 520 and the bracket 400.

[0047] The usage process of this embodiment is exemplified as follows: the telescopic head 100 of the gun nozzle has a preset moving stroke in the gun groove part 510; that is, the distance between the movable part 700 and the limiting part 521. When the telescopic head 100 of the gun nozzle drives the movable part 700 to move until it is supported by the limiting part 521, the telescopic head 100 of the gun nozzle can continue to push the telescopic rod 520 of the gun nozzle and the gun groove part 510 to move so as to compress the second elastic reset part 600; optionally, the movable part 700 includes a pin, and the limiting part 521 is a block formed on the side of the telescopic rod 520 of the gun nozzle facing the pin.

[0048] In an optional embodiment, the telescopic head mounting portion 500 further includes a connecting plate 530 for connecting the muzzle telescopic rod 520 to the gun slot component 510. The muzzle telescopic rod 520 and the gun slot component 510 are connected via the connecting plate 530, so that the muzzle telescopic rod 520 and the gun slot component 510 can move synchronously.

[0049] Embodiment 3

[0050] The nail gun includes the nail gun head as described above and a driving structure for driving the nail gun head to work. Since this embodiment includes the nail gun head as described above, it should have all the beneficial effects of the nail gun head as described above, which will not be repeated here.

[0051] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0052] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0053] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. The gun nozzle anti-loosening structure is characterized by: include A gun nozzle telescopic head (100) having an internal threaded portion (110) and a guide portion (120) disposed therein; A gun nozzle (200) is provided with an external threaded portion (210) for being inserted into the gun nozzle telescopic head (100) and threadedly connected with the internal threaded portion (110); A stopper (130) is movably arranged in the guide portion (120), and a first elastic return member (300) is arranged on a side of the stopper (130) away from the gun nozzle (200); a first clamping portion (131) is arranged on a side of the stopper (130) facing the gun nozzle (200), and a second clamping portion (220) is arranged on an end of the gun nozzle (200) facing the stopper (130); the first clamping portion (131) cooperates with the second clamping portion (220) to limit the rotation of the gun nozzle (200).

2. The gun nozzle anti-loosening structure according to claim 1, characterized in that: The first clamping portion (131) comprises a plurality of first protrusions (1311), and a first groove (1312) is formed between every two of the first protrusions (1311); the second clamping portion (220) comprises a plurality of second protrusions (221), and a second groove (222) is formed between every two of the second protrusions (221); the first protrusion (1311) is suitable for being rotatably clamped into the corresponding second groove (222); and the second protrusion (221) is suitable for being rotatably clamped into the corresponding first groove (1312).

3. The gun nozzle anti-loosening structure according to claim 2, characterized in that: A plurality of the first protrusions (1311) are distributed in a circle, and first guiding slopes (1313) are provided on both sides of the extension direction of the first protrusions (1311); a plurality of the second protrusions (221) are distributed in a circle, and second guiding slopes (223) are provided on both sides of the extension direction of the second protrusions (221); the shape of the first protrusion (1311) is adapted to the second groove (222); and the shape of the second protrusion (221) is adapted to the first groove (1312).

4. The gun nozzle anti-loosening structure according to claim 1, characterized in that: The guide portion (120) is configured as a guide groove provided on the side wall of the telescopic head (100) of the gun nozzle, and the anti-rotation member (130) is slidably connected in the guide groove.

5. The gun nozzle anti-loosening structure according to claim 4, characterized in that: The guide grooves are arranged to be at least two and are evenly distributed circumferentially on the side wall of the telescopic head of the gun nozzle (100); the anti-rotation member (130) comprises a main body (132) and a sliding portion (133) extending from the main body (132) and arranged corresponding to the guide groove, and the sliding portion (133) is suitable for sliding along the guide groove.

6. The gun nozzle anti-loosening structure according to claim 5, characterized in that: The side of the main body (132) facing the gun nozzle (200) has the first clamping portion (131); the side of the main body (132) facing away from the gun nozzle (200) has a positioning groove (134) for accommodating the first elastic reset member (300).

7. The nail gun head is characterized by: It comprises a gun nozzle anti-loosening structure and a bracket (400) as described in any one of claims 1 to 6, wherein the bracket (400) is connected to a telescopic head mounting part (500) via a second elastic reset member (600), and the telescopic head mounting part (500) is used to mount the gun nozzle telescopic head (100).

8. The nail gun head according to claim 7, characterized in that: The telescopic head mounting part (500) includes a gun groove part (510) movably connected to the bracket (400), and the gun nozzle telescopic head (100) is movably connected in the gun groove part (510); the telescopic head mounting part (500) also includes a gun nozzle telescopic rod (520), which is arranged on the gun groove part (510) and has a limiting part (521); a movable part (700) is arranged on the gun nozzle telescopic head (100) corresponding to the limiting part (521), and the limiting part (521) is used to limit the moving stroke of the movable part (700) and the gun nozzle telescopic head (100); wherein, the second elastic reset part (600) is connected between the gun groove part (510) and the bracket (400) and / or the second elastic reset part (600) is connected between the gun nozzle telescopic rod (520) and the bracket (400).

9. The nail gun head according to claim 8, characterized in that: The telescopic head mounting portion (500) further comprises a connecting plate (530) for connecting the gun mouth telescopic rod (520) to the gun slot member (510).

10. A nail gun, characterized in that: It comprises a nail gun head as described in any one of claims 7 to 9.

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