Gun nozzle structure and striking tool

Abstract

The utility model provides a gun nozzle structure and a striking tool, the gun nozzle structure comprises a gun nozzle and a gun barrel, one of the gun barrel and the gun nozzle is provided with an inserting groove, and the other one is provided with an inserting part; a protruding part is arranged on the inserting part in a protruding mode, a concave part is arranged on the inner side wall of the inserting groove, the concave part comprises a sliding groove and a clamping groove, and the clamping groove is located in one side of the sliding groove and communicates with the sliding groove; when the gun nozzle is in a release state, the protruding part is located in the sliding groove and can slide along the sliding groove. When the gun nozzle is in a limiting state, the protruding part is located in the clamping groove, and the protruding part and the clamping groove are in clamping fit. The gun nozzle and the gun barrel are respectively provided with the convex part and the barb type concave part, the convex part slides along the sliding chute of the concave part and then is screwed into the clamping groove of the concave part during installation, and the convex part cannot retreat from the clamping groove, so that the rotary buckling type connection between the gun nozzle and the gun barrel is realized, the gun nozzle is prevented from falling off, and the service life of the gun nozzle is prolonged. By means of the rotary buckling type installation mode, the gun nozzle can be replaced easily in a labor-saving mode.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of power tools, and particularly to a nozzle structure and a striking tool. Background Art

[0002] The working principle of a striking tool such as a nail gun for striking fasteners is as follows: when the nozzle is pressed down, the motor will be started, and the striker will be driven by a lifting mechanism to drive the piston to compress air from the initial locked preparation position. After the striker disengages from the engagement with the lifting mechanism, it will be suddenly released to strike the row of nails pushed into the nail seat by the pusher in the nail magazine, so that they are ejected from the nozzle.

[0003] The nozzles of existing nail guns are usually fixed by screwing nuts. The disassembly and assembly speed of the nozzles is slow and the operation is cumbersome, making the replacement of the nozzles relatively troublesome. Summary of the Utility Model

[0004] The purpose of the embodiments of the present utility model is to provide a nozzle structure and a striking tool, aiming to solve the problem that the replacement of the nozzle of an existing nail gun is relatively troublesome due to the installation method of the nozzle.

[0005] To solve the above technical problems, the embodiments of the present utility model provide a nozzle structure, including:

[0006] A nozzle;

[0007] A barrel, wherein a plugging groove is provided on the end surface of one of the barrel and the nozzle, and a plugging portion that is plugged and matched with the plugging groove is provided at one end of the other;

[0008] Wherein, a protruding portion is convexly provided on the circumferential side surface of the plugging portion, and a recessed portion corresponding to the protruding portion is provided on the inner side wall of the plugging groove. The recessed portion includes a sliding groove and a clamping groove. The sliding groove extends along the groove depth direction of the plugging groove, and the clamping groove is located on one side of the sliding groove in the circumferential direction of the plugging groove. The clamping groove is communicated with the sliding groove;

[0009] When the nozzle is in the released state, the protruding portion is located in the sliding groove, and the protruding portion can slide along the sliding groove; when the nozzle is in the limited state, the protruding portion is located in the clamping groove, and the protruding portion and the clamping groove form a clamping fit.

[0010] The nozzle and the barrel of the present utility model are respectively provided with a protruding portion and an inverted hook-shaped recessed portion. When installing the nozzle, the protruding portion is slid along the sliding groove of the recessed portion and then screwed into the clamping groove of the recessed portion. The protruding portion cannot exit the clamping groove, thereby realizing the screw-fastening connection between the nozzle and the barrel, ensuring that the nozzle will not fall off the barrel. This screw-fastening installation method makes the replacement of the nozzle relatively simple and labor-saving.

[0011] Preferably, the card slot is arranged to extend along the circumferential direction of the insertion slot, and the card slot includes:

[0012] A receiving section, the receiving section is located at one end of the card slot away from the sliding slot. When the nozzle is in the limited position state, the convex portion is located within the receiving section;

[0013] A limiting section, the limiting section is located at one end of the card slot close to the sliding slot. The size of the narrowest part of the limiting section in the depth direction of the insertion slot is smaller than the size of the convex portion in the depth direction of the insertion slot to limit the convex portion from disengaging from the card slot.

[0014] Preferably, from the end of the limiting section communicating with the sliding slot to the end communicating with the receiving section, the size of the limiting section in the depth direction of the insertion slot is arranged to gradually decrease.

[0015] Preferably, the recessed portion includes a plurality of the card slots arranged at intervals along the depth direction of the insertion slot, so that the convex portion can selectively slide from within the sliding slot into a plurality of the card slots.

[0016] Preferably, the plurality of card slots include a first card slot and a second card slot, and the first card slot is located on one side of the second card slot away from the slot opening of the insertion slot;

[0017] When the nozzle is in the first limited position state, the convex portion is located within the first card slot, and the convex portion forms a clamping fit with the first card slot; when the nozzle is in the second limited position state, the convex portion is located within the second card slot, and the convex portion forms a clamping fit with the second card slot.

[0018] Preferably, a limiting boss is convexly provided on the circumferential side surface of the insertion portion, and the limiting boss is located outside the insertion slot;

[0019] When the nozzle is in the first release state, the convex portion is located at the position where the sliding slot communicates with the first card slot, so that the convex portion can slide from within the sliding slot into the first card slot, and the limiting boss abuts against the barrel or the end surface of the nozzle provided with the insertion slot.

[0020] Preferably, a pin hole is provided on the outer side wall of the insertion slot, the pin hole communicates with the sliding slot, and a limiting pin is inserted at the pin hole, and one end of the limiting pin extends into the sliding slot;

[0021] When the nozzle is in the second release state, the convex portion is located at the position where the sliding slot communicates with the second card slot, so that the convex portion can slide from within the sliding slot into the second card slot, and the end of the limiting pin located within the sliding slot abuts against one side of the convex portion close to the slot opening of the insertion slot.

[0022] Preferably, an elastic member is disposed in the insertion groove, and two ends of the elastic member respectively abut against the bottom wall of the insertion groove and the end face of the insertion portion.

[0023] Preferably, a gasket is disposed between the elastic member and the insertion portion, and the gasket is movably disposed in the insertion groove along the depth direction of the insertion groove.

[0024] To achieve the above object, the present invention further provides a striking tool, including the above nozzle structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0026] Figure 1 It is a schematic structural diagram of the nozzle structure in the embodiment of the present invention;

[0027] Figure 2 For Figure 1 a cross-sectional view of the nozzle structure;

[0028] Figure 3 For Figure 1 an exploded view of the nozzle structure;

[0029] Figure 4 For Figure 3 a schematic structural diagram of the nozzle;

[0030] Figure 5 For Figure 3 a schematic structural diagram of the gun barrel;

[0031] Figure 6 For Figure 5 a cross-sectional view of the gun barrel;

[0032] Figure 7 For Figure 5 another cross-sectional view of the gun barrel;

[0033] Figure 8 For Figure 3 a schematic structural diagram of the gasket.

[0034] Description of the reference numerals in the drawings of the present invention:

[0035] Nozzle structure 100, nozzle 1, insertion part 11, convex part 12, limiting boss 13, gun barrel 2, insertion slot 21, recessed part 22, sliding slot 221, clamping slot 222, first clamping slot 222a, second clamping slot 222b, accommodating section 2221, limiting section 2222, guiding inclined surface 2223, pin shaft hole 23, first annular convex column 24, limiting pin 3, elastic part 4, gasket 5, second annular convex column 51, limiting projection 52, firing pin 6.

[0036] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0038] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0040] The present utility model provides a nozzle structure, which can be used in striking tools such as nail guns. The following will take the nozzle structure used in a nail gun as an example for introduction. Figures 1 to 8 A preferred embodiment of the nozzle structure provided by the present utility model is shown.

[0041] Please refer to Figures 1 to 3 , in this embodiment, the nozzle structure 100 includes a nozzle 1 and a gun barrel 2.

[0042] Please refer to Figures 3 to 5 On the end face of one of the barrel 2 and the nozzle 1, a socket groove 21 is provided, and at one end of the other, a socket portion 11 is provided which is in plug-in fit with the socket groove 21.

[0043] Specifically, the socket portion 11 can be provided on the nozzle 1, and the socket groove 21 is correspondingly provided on the barrel 2; the socket portion 11 can also be provided on the barrel 2, and the socket groove 21 is correspondingly provided on the nozzle 1. Optionally, please refer to Figures 1 to 3 Figures 1 to 3 , in this embodiment, on the end face of the barrel 2 close to the nozzle 1, a socket groove 21 is provided, and one end of the nozzle 1 close to the barrel 2 is the socket portion 11.

[0044] Hereinafter, taking the socket portion 11 being provided on the nozzle 1 and the socket groove 21 being correspondingly provided on the barrel 2 as an example for introduction, and defining the groove depth direction of the socket groove 21 as the front-rear direction, and the orientation of the groove opening of the socket groove 21 as the front. The rear end of the nozzle 1 is the socket portion 11, and on the front end face of the barrel 2, a socket groove 21 is provided. The shape of the socket groove 21 is generally adapted to the shape of the socket portion 11, and the shape of the socket groove 21 and the shape of the socket portion 11 are generally circular, so that the socket portion 11 can slide along the front-rear direction and rotate along the axis in the front-rear direction within the socket groove 21.

[0045] The nozzle 1 and the barrel 2 are generally arranged in a cylindrical shape. Optionally, please refer to Figures 1 to 3 Figures 1 to 3 , in this embodiment, the nozzle structure 100 further includes a firing pin 6, and the nozzle 1 and the barrel 2 are sleeved outside the front end of the firing pin 6.

[0046] Please refer to Figures 4 to 7 Figures 4 to 7 , on the circumferential side surface of the socket portion 11, a protruding portion 12 is convexly provided, and on the inner side wall of the socket groove 21, a recessed portion 22 is correspondingly provided for the protruding portion 12. The recessed portion 22 includes a sliding groove 221 and a clamping groove 222. The sliding groove 221 is arranged to extend along the groove depth direction of the socket groove 21, and the clamping groove 222 is located on one side of the sliding groove 221 in the circumferential direction of the socket groove 21, and the clamping groove 222 communicates with the sliding groove 221.

[0047] Specifically, the recessed portion 22 includes a chute 221 extending along the front-rear direction and a clamping groove 222 extending along the circumferential direction of the insertion groove 21, such that the recessed portion 22 is integrally arranged in a barb shape. During the process of inserting the nozzle 1 onto the barrel 2, first align the protrusion 12 on the nozzle 1 with the chute 221 on the barrel 2, and then insert the insertion portion 11 of the nozzle 1 into the insertion groove 21 of the barrel 2, so that the protrusion 12 enters the chute 221. After the protrusion 12 slides along the chute 221 to the communication position between the chute 221 and the clamping groove 222, rotate the nozzle 1, so that the protrusion 12 is screwed into the clamping groove 222 from the chute 221, so as to form a clamping fit between the protrusion 12 and the clamping groove 222, such that the protrusion 12 cannot exit the clamping groove 222, thereby realizing the screw-fastening connection between the nozzle 1 and the barrel 2, ensuring that the nozzle 1 will not fall off the barrel 2. This screw-fastening installation method makes the replacement of the nozzle 1 relatively simple and labor-saving.

[0048] Optionally, please refer to Figures 4 to 7 , in this embodiment, the front end of the chute 221 penetrates through the front end face of the barrel 2 to form an entrance of the chute 221. The protrusion 12 can enter and exit the chute 221 from the entrance of the chute 221, so that the disassembly and assembly of the nozzle 1 become more labor-saving and convenient.

[0049] One or more protrusions 12 are arranged on the insertion portion 11 of the nozzle 1, and on the inner side wall of the insertion groove 21 of the barrel 2, there may be arranged recessed portions 22 having the same number as the protrusions 12, or the number of the recessed portions 22 may also be an integer multiple of the number of the protrusions 12. Optionally, please refer to Figures 4 to 7 , in this embodiment, two protrusions 12 are symmetrically arranged on the insertion portion 11 of the nozzle 1, and four recessed portions 22 are uniformly arranged along the circumferential direction of the insertion groove 21 on the inner side wall of the insertion groove 21 of the barrel 2.

[0050] Please refer to Figures 1 to 3 , when the nozzle 1 is in the released state, the protrusion 12 is located in the chute 221, and the protrusion 12 can slide along the chute 221; when the nozzle 1 is in the limited state, the protrusion 12 is located in the clamping groove 222, and the protrusion 12 forms a clamping fit with the clamping groove 222.

[0051] Specifically, during the process of inserting the nozzle 1 onto the barrel 2, when the protrusion 12 is located within the sliding groove 221, the nozzle 1 can slide back and forth relative to the barrel 2, and at this time, the nozzle 1 is in a released state. After the protrusion 12 slides along the sliding groove 221 to the connection point between the sliding groove 221 and the clamping groove 222, rotate the nozzle 1 forward so that the protrusion 12 rotates into the clamping groove 222 from within the sliding groove 221. At this time, the nozzle 1 in the released state switches to the limited position state, and the nozzle 1 cannot slide back and forth or rotate relative to the barrel 2. When it is necessary to disassemble the nozzle 1 from the barrel 2, rotate the nozzle 1 backward so that the protrusion 12 rotates out of the clamping groove 222 and re-enters the sliding groove 221. At this time, the nozzle 1 in the limited position state switches to the released state, and the nozzle 1 can be disassembled from the barrel 2.

[0052] Optionally, please refer to Figure 2 and Figure 3 , in this embodiment, an elastic member 4 is provided in the insertion groove 21, and both ends of the elastic member 4 respectively abut against the bottom wall of the insertion groove 21 and the end face of the insertion portion 11.

[0053] Specifically, the elastic member 4 can be a spring or the like. The front end of the elastic member 4 abuts against the rear end face of the nozzle 1, and the rear end of the elastic member 4 abuts against the bottom wall of the insertion groove 21. When the nozzle 1 is in the limited position state, the elastic member 4 presses against the rear end of the nozzle 1, so that the protrusion 12 on the elastic member 4 can press against the front groove side wall of the clamping groove 222, thereby enabling the insertion portion 11 of the nozzle 1 to be more stably fixed in the insertion groove 21 of the barrel 2, the nozzle 1 cannot be displaced, and at the same time, the protrusion 12 cannot exit the clamping groove 222.

[0054] Furthermore, please refer to Figure 2 , Figure 6 and Figure 7 , in this embodiment, a first annular convex column 24 protrudes from the bottom wall of the insertion groove 21, and the rear end of the elastic member 4 is sleeved outside the first annular convex column 24. By providing the first annular convex column 24 on the bottom wall of the insertion groove 21, the installation and positioning of the elastic member 4 in the insertion groove 21 can be realized.

[0055] Optionally, please refer to Figure 2 , Figure 3 and Figure 8 , in this embodiment, a gasket 5 is provided between the elastic member 4 and the insertion portion 11, and the gasket 5 is movably arranged in the insertion groove 21 along the depth direction of the insertion groove 21. Providing the gasket 5 between the front end of the elastic member 4 and the rear end face of the nozzle 1 is beneficial for the nozzle 1 to better abut against the front end of the elastic member 4.

[0056] Furthermore, please refer to Figure 2 , Figure 3 and Figure 8, in this embodiment, a second annular convex column 51 is provided on the gasket 5, and the front end of the elastic member 4 is sleeved outside the second annular convex column 51. By providing the second annular convex column 51 on the gasket 5, the installation and positioning between the elastic member 4 and the gasket 5 can be achieved.

[0057] Optionally, please refer to Figure 2 , Figure 3 and Figure 8 , in this embodiment, a limiting projection 52 is convexly provided on the circumferential side surface of the gasket 5, and the limiting projection 52 extends into the sliding groove 221 and can slide along the sliding groove 221. Through the sliding fit between the limiting projection 52 and the sliding groove 221, the movable guiding and limiting of the gasket 5 in the insertion groove 21 can be achieved.

[0058] The nozzle 1 and the barrel 2 of the present utility model are respectively provided with a convex portion 12 and an inverted hook-shaped recess 22. When installing the nozzle 1, the convex portion 12 is slid along the sliding groove 221 of the recess 22 and then screwed into the card slot 222 of the recess 22. The convex portion 12 cannot exit the card slot 222, so as to realize the screw-on connection between the nozzle 1 and the barrel 2, ensuring that the nozzle 1 will not fall off the barrel 2. This screw-on installation method makes the replacement of the nozzle 1 relatively simple and labor-saving.

[0059] Optionally, please refer to Figures 5 to 7 , in this embodiment, the card slot 222 is arranged to extend along the circumferential direction of the insertion slot 21. The card slot 222 includes a receiving section 2221 and a limiting section 2222. The receiving section 2221 is located at one end of the card slot 222 away from the sliding groove 221. When the nozzle 1 is in a limiting state, the convex portion 12 is located in the receiving section 2221; the limiting section 2222 is located at one end of the card slot 222 close to the sliding groove 221. The dimension of the narrowest part of the limiting section 2222 in the slot depth direction of the insertion slot 21 is smaller than the dimension of the convex portion 12 in the slot depth direction of the insertion slot 21 to limit the convex portion 12 from disengaging from the card slot 222.

[0060] Specifically, the dimension of the card slot 222 in the front-back direction is the slot width of the card slot 222. The convex portion 12 is usually arranged in a columnar shape, and the dimension of the convex portion 12 in the front-back direction is the radial dimension (i.e., the diameter) of the convex portion 12. The limiting section 2222 communicates with the receiving section 2221 and the sliding groove 221. The narrowest part of the limiting section 2222 is the part with the smallest slot width of the limiting section 2222. The diameter of the convex portion 12 is larger than the slot width of the narrowest part of the limiting section 2222, and the diameter of the convex portion 12 is smaller than the slot width of the receiving section 2221. During the process of screwing the convex portion 12 into the card slot 222, the convex portion 12 enters the receiving section 2221 through the limiting section 2222. When the convex portion 12 enters the receiving section 2221, since the slot width of the narrowest part of the limiting section 2222 is smaller than the diameter of the convex portion 12, the convex portion 12 located in the receiving section 2221 cannot enter the limiting section 2222 again and exit the card slot 222.

[0061] Further, please refer to Figures 5 to 7 , in this embodiment, from one end of the limiting section 2222 communicating with the sliding groove 221 to one end communicating with the accommodating section 2221, the dimension of the limiting section 2222 in the slot depth direction of the insertion slot 21 is set to gradually decrease.

[0062] Specifically, in the direction from the sliding groove 221 to the accommodating section 2221, the slot width of the limiting section 2222 is set to gradually decrease, so as to form a guiding inclined surface 2223 on the front slot side wall and / or the rear slot side wall of the limiting section 2222. The guiding inclined surface 2223 is formed on the limiting section 2222, and the guiding inclined surface 2223 can guide the convex portion 12 to enter the accommodating section 2221 through the limiting section 2222.

[0063] The limiting section 2222 can be arranged in an isosceles trapezoid shape, that is, guiding inclined surfaces 2223 are formed on both the front slot side wall and the rear slot side wall of the limiting section 2222; the limiting section 2222 can also be arranged in a right trapezoid shape, that is, a guiding inclined surface 2223 is formed on the front slot side wall or the rear slot side wall of the limiting section 2222. For example, please refer to Figures 5 to 7 , in this embodiment, a guiding inclined surface 2223 is formed on the front slot side wall of the limiting section 2222.

[0064] In order to meet the requirements of different nail driving depths, optionally, please refer to Figures 5 to 7 , in this embodiment, the recess 22 includes a plurality of card slots 222 arranged at intervals along the slot depth direction of the insertion slot 21, so that the convex portion 12 can selectively slide into the plurality of card slots 222 from the sliding groove 221.

[0065] Specifically, the plurality of card slots 222 are arranged at intervals in the front-rear direction, and the plurality of card slots 222 all communicate with the sliding groove 221. The plurality of card slots 222 can be located on the same side of the sliding groove 221 in the circumferential direction of the insertion slot 21; the plurality of card slots 222 can also be respectively arranged on both sides of the sliding groove 221 in the circumferential direction of the insertion slot 21. When the convex portion 12 is screwed into different card slots 222, the length of the gun nozzle 1 telescoping back and forth relative to the barrel 2 is also different. In this way, by selectively screwing the convex portion 12 into the plurality of card slots 222, the adjustment of the nail driving depth can be achieved.

[0066] Each recess 22 can include two, three, four or more card slots 222. Optionally, please refer to Figures 5 to 7, in this embodiment, the plurality of card slots 222 include a first card slot 222a and a second card slot 222b. The first card slot 222a is located on the side of the second card slot 222b away from the notch of the insertion slot 21. When the nozzle 1 is in the first limiting state, the protruding portion 12 is located in the first card slot 222a, and the protruding portion 12 forms a clamping fit with the first card slot 222a. When the nozzle 1 is in the second limiting state, the protruding portion 12 is located in the second card slot 222b, and the protruding portion 12 forms a clamping fit with the second card slot 222b.

[0067] Specifically, each recess 22 may include two card slots 222, namely a first card slot 222a and a second card slot 222b, and the first card slot 222a is located at the rear side of the second card slot 222b. When the nozzle 1 is in the first limiting state, if it is necessary to adjust the nail driving depth, rotate the nozzle 1 in the reverse direction so that the protruding portion 12 on the nozzle 1 exits the first card slot 222a and enters the sliding groove 221. At this time, the nozzle 1 can slide forward under the action of the elastic member 4. When the protruding portion 12 slides along the sliding groove 221 to the position where the sliding groove 221 communicates with the second card slot 222b, rotate the nozzle 1 in the forward direction so that the protruding portion 12 on the nozzle 1 is screwed into the second card slot 222b from the sliding groove 221 to switch the nozzle 1 to the second limiting state.

[0068] When the nozzle 1 is in the second limiting state, if it is necessary to adjust the nail driving depth, rotate the nozzle 1 in the reverse direction so that the protruding portion 12 on the nozzle 1 exits the second card slot 222b and enters the sliding groove 221, and then push the nozzle 1 backward. When the protruding portion 12 slides along the sliding groove 221 to the position where the sliding groove 221 communicates with the first card slot 222a, rotate the nozzle 1 in the forward direction so that the protruding portion 12 on the nozzle 1 is screwed into the first card slot 222a from the sliding groove 221 to switch the nozzle 1 to the first limiting state.

[0069] Optionally, please refer to Figure 1 、 Figure 2 and Figure 4 , in this embodiment, a limiting boss 13 is convexly provided on the circumferential side surface of the insertion portion 11, and the limiting boss 13 is located outside the insertion slot 21. When the nozzle 1 is in the first release state, the protruding portion 12 is located at the position where the sliding groove 221 communicates with the first card slot 222a so that the protruding portion 12 can slide into the first card slot 222a from the sliding groove 221, and the limiting boss 13 abuts against the barrel 2 or the end surface of the nozzle 1 provided with the insertion slot 21.

[0070] Specifically, a circular limiting boss 13 is provided on the nozzle 1, and the limiting boss 13 is located on the front side of the protruding portion 12. When the nozzle 1 is in the first release state, the limiting boss 13 abuts against the front side of the front end face of the barrel 2, so that the positioning of the protruding portion 12 at the position where the sliding groove 221 communicates with the first card slot 222a can be realized. By rotating the nozzle 1 in the first release state in the forward direction, the nozzle 1 can be switched to the first limiting state.

[0071] Optionally, please refer to Figure 1 , Figure 3 and Figure 7 , in this embodiment, a pin shaft hole 23 is provided on the outer side wall of the insertion slot 21. The pin shaft hole 23 communicates with the sliding groove 221, and a limiting pin 3 is inserted at the pin shaft hole 23. One end of the limiting pin 3 extends into the sliding groove 221. When the nozzle 1 is in the second release state, the protruding portion 12 is located at the position where the sliding groove 221 communicates with the second card slot 222b, so that the protruding portion 12 can slide into the second card slot 222b from the sliding groove 221. One end of the limiting pin 3 located in the sliding groove 221 abuts against one side of the protruding portion 12 close to the notch of the insertion slot 21.

[0072] Specifically, the limiting pin 3 is detachably inserted at the pin shaft hole 23. When the nozzle 1 is in the second release state, one end of the limiting pin 3 located in the sliding groove 221 abuts against the front side of the protruding portion 12, so that the positioning of the protruding portion 12 at the position where the sliding groove 221 communicates with the second card slot 222b can be realized. By rotating the nozzle 1 in the second release state in the forward direction, the nozzle 1 can be switched to the second limiting state. When it is necessary to detach the nozzle 1 from the barrel 2, only need to first detach the limiting pin 3 from the barrel 2, and then the nozzle 1 can be pulled off from the barrel 2.

[0073] The nozzle structure 100 adopts a screw-on connection between the nozzle 1 and the barrel 2. At the same time, the bottom elastic member 4 presses against the rear end of the nozzle 1, making the rear end of the nozzle 1 more stable in the insertion slot 21 of the barrel 2. The barrel 2 adopts an inverted hook-shaped recess 22 to ensure that the nozzle 1 will not fall off. The card slots of the recess 22 are segmented, which can meet the requirements of different nail driving depths. During installation, the protruding portion 12 of the nozzle 1 enters through the sliding groove 221, abuts against the bottom elastic member 4, rotates the nozzle 1, screws the protruding portion 12 of the nozzle 1 into the card slot 222. After releasing the hand, the nozzle 1 is pressed by the spring force of the elastic member 4 and cannot be displaced, and at the same time cannot exit the inverted hook-shaped recess 22, ensuring the tight connection between the nozzle 1 and the barrel 2.

[0074] The present utility model further provides a striking tool, which can be a nail gun or the like. The striking tool includes a nozzle structure. Since the nozzle structure adopts the technical solution of the above embodiment, it has the beneficial effects brought by the technical solution of the above embodiment.

[0075] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A nozzle structure, characterized in that, Comprising: Nozzle; Barrel, on the end face of one of the barrel and the nozzle, there is a socket groove, and at one end of the other, there is a socket part that is inserted and matched with the socket groove; Wherein, on the circumferential side of the socket part, there is a protruding part, and on the inner side wall of the socket groove, corresponding to the protruding part, there is a recessed part. The recessed part includes a sliding groove and a clamping groove. The sliding groove extends along the groove depth direction of the socket groove, and the clamping groove is located on one side of the sliding groove in the circumferential direction of the socket groove. The clamping groove communicates with the sliding groove; When the nozzle is in the released state, the protruding part is located in the sliding groove, and the protruding part can slide along the sliding groove; when the nozzle is in the limited state, the protruding part is located in the clamping groove, and the protruding part forms a clamping fit with the clamping groove.

2. The nozzle structure according to claim 1, characterized in that, The clamping groove extends along the circumferential direction of the socket groove, and the clamping groove includes: Receiving section, the receiving section is located at one end of the clamping groove far from the sliding groove. When the nozzle is in the limited state, the protruding part is located in the receiving section; Limiting section, the limiting section is located at one end of the clamping groove close to the sliding groove. The narrowest dimension of the limiting section in the groove depth direction of the socket groove is smaller than the dimension of the protruding part in the groove depth direction of the socket groove to limit the protruding part from disengaging from the clamping groove.

3. The nozzle structure according to claim 2, wherein, From the end of the limiting section communicating with the sliding groove to the end communicating with the receiving section, the dimension of the limiting section in the groove depth direction of the socket groove is gradually decreasing.

4. The nozzle structure according to claim 1, characterized in that, The recessed part includes a plurality of the clamping grooves arranged at intervals along the groove depth direction of the socket groove, so that the protruding part can selectively slide from the sliding groove into a plurality of the clamping grooves.

5. The nozzle structure according to claim 4, wherein, The plurality of clamping grooves include a first clamping groove and a second clamping groove. The first clamping groove is located on one side of the second clamping groove far from the groove opening of the socket groove; When the nozzle is in the first limited state, the protruding part is located in the first clamping groove, and the protruding part forms a clamping fit with the first clamping groove; when the nozzle is in the second limited state, the protruding part is located in the second clamping groove, and the protruding part forms a clamping fit with the second clamping groove.

6. The nozzle structure according to claim 5, wherein, On the circumferential side of the socket part, there is a limiting boss protruding, and the limiting boss is located outside the socket groove; When the nozzle is in the first released state, the protruding part is located at the position where the sliding groove communicates with the first clamping groove, so that the protruding part can slide from the sliding groove into the first clamping groove, and the limiting boss abuts against the barrel or the end face of the nozzle provided with the socket groove.

7. The nozzle structure according to claim 5, characterized in that On the outer side wall of the socket groove, there is a pin hole, the pin hole communicates with the sliding groove, and a limiting pin is inserted at the pin hole, and one end of the limiting pin extends into the sliding groove; When the nozzle is in the second released state, the protruding part is located at the position where the sliding groove communicates with the second clamping groove, so that the protruding part can slide from the sliding groove into the second clamping groove, and one end of the limiting pin located in the sliding groove abuts against one side of the protruding part close to the groove opening of the socket groove.

8. The nozzle structure according to any one of claims 1-7, characterized in that, An elastic member is disposed in the insertion groove, and two ends of the elastic member respectively abut against the bottom wall of the insertion groove and the end face of the insertion portion.

9. The nozzle structure according to claim 8, characterized in that, A gasket is disposed between the elastic member and the insertion portion, and the gasket is movably disposed in the insertion groove along the depth direction of the insertion groove.

10. A striking tool, characterized in that, It includes the nozzle structure according to any one of claims 1-9.

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