Gun nozzle assembly and fastener striking tool

Abstract

The utility model relates to the technical field of electric tools, aims to solve the problem of how to conveniently replace a gun nozzle, and provides a gun nozzle assembly and a fastener striking tool. The gun nozzle assembly comprises a gun nozzle, a gun nozzle connecting piece and a clamping piece. A clamping groove is formed in the periphery of the gun nozzle. The gun nozzle connecting piece comprises a sleeve; the sleeve is arranged outside the gun nozzle in a sleeving mode and provided with two through holes, the two through holes correspond to the clamping grooves respectively, and the sleeve is provided with a connecting part located between the two through holes in the circumferential direction. The clamping piece comprises a clamping part and two clamping parts, the clamping part is arranged on the periphery of the connecting part in a clamping mode, and the two clamping parts are connected to the two circumferential ends of the clamping part respectively; the clamping piece has a locking state and an unlocking state, and in the locking state, the clamping part can stretch into the clamping groove and can move out of the clamping groove so as to be switched from the locking state to the unlocking state. The gun nozzle has the beneficial effects that when the gun nozzle is used, the clamping part can be moved out of the clamping groove, so that the gun nozzle can be taken out of the sleeve, and the gun nozzle is convenient to replace.

Description

Technical Field

[0001] The present application relates to the technical field of power tools, and more particularly, to a nozzle assembly and a fastener driving tool. Background Art

[0002] In the related art, a fastener driving tool is provided, including a nozzle for ejecting fasteners such as nails. To meet different usage scenarios, it is often necessary to replace the nozzle. However, in the related art, for the fastener driving tool, after unlocking locking parts such as nuts, the nozzle needs to be removed for replacement, and the operation is relatively complicated. Summary of the Utility Model

[0003] The present application provides a nozzle assembly and a fastener driving tool to solve the problem of how to conveniently replace the nozzle.

[0004] According to one aspect of the present application, a nozzle assembly is provided, including a nozzle, a nozzle connector, and a clamping member. A slot is provided on the outer periphery of the nozzle. The nozzle connector includes a sleeve; the sleeve is sleeved outside the nozzle and is provided with two through holes, the two through holes respectively corresponding to the slot, and the sleeve has a connecting portion circumferentially located between the two through holes. The clamping member includes a clamping portion and two clamping parts, the clamping portion is clamped outside the connecting portion, and the two clamping parts are respectively connected to the circumferential two ends of the clamping portion; the clamping member has a locked state and an unlocked state. In the locked state, the clamping part can extend into the slot, and the clamping part can be removed from the slot to switch from the locked state to the unlocked state.

[0005] For the above nozzle assembly, during use, the nozzle can be taken out of the sleeve by removing the clamping part from the slot, without the need to operate fasteners (such as screwing nuts) when taking out the nozzle, so that the nozzle is conveniently replaced.

[0006] In one embodiment, the clamping portion includes a bent portion and two cooperating portions. One ends of the two cooperating portions are respectively connected to the two ends of the bent portion, and the ends of the cooperating portions away from the bent portion are connected to the clamping parts. In the locked state, the two cooperating portions are cooperatively clamped on the circumferential two sides of the connecting portion, and there is a gap between the bent portion and the connecting portion in the radial direction. The bent portion is made of an elastic material, so that in the locked state, the middle portion of the bent portion can move closer to the connecting portion in the radial direction, thereby switching from the locked state to the unlocked state.

[0007] In one embodiment, guiding surfaces are respectively provided on the circumferential two sides of the connecting portion. During the process of the clamping member switching from the locked state to the unlocked state, the guiding surfaces guide the clamping portion to open outward, so that the clamping part is removed from the slot.

[0008] In one embodiment, the clamping part is recessed radially inward into the sleeve, so that the clamping part extends along an arc.

[0009] In one embodiment, in the locked state, the engaging portion is located within the through hole along the arc towards the end away from the clamping portion.

[0010] In one embodiment, the card slot surrounds the outer peripheral side of the nozzle.

[0011] In one embodiment, the nozzle includes a connecting section and a limiting section connected axially. The outer diameter of the connecting section is smaller than that of the limiting section, and the outer diameter of the limiting section is larger than the inner diameter of the sleeve; the card slot is provided on the connecting section. In the locked state, the connecting section passes through the sleeve, and the limiting section is located outside the sleeve.

[0012] According to another aspect of the present application, there is provided a fastener driving tool, including the nozzle assembly as described in any one of the above embodiments.

[0013] In one embodiment, the fastener driving tool further includes a housing, and the housing is detachably sleeved outside the nozzle connector.

[0014] In one embodiment, the fastener driving tool further includes an elastic member, and the elastic member elastically abuts against the nozzle connector to apply an elastic force along the axial direction extending out of the housing to the nozzle connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of a fastener driving tool in an embodiment of the present application.

[0017] Figure 2 For Figure 1 the schematic structural diagram of the nozzle assembly in the locked state in the shown embodiment.

[0018] Figure 3 For Figure 1 the exploded state schematic diagram of the nozzle assembly in the shown embodiment.

[0019] Figure 4 For Figure 1 the side view of the nozzle assembly in the locked state in the shown embodiment.

[0020] Figure 5 For Figure 4 the sectional view of the nozzle assembly along line A-A in the shown embodiment.

[0021] Figure 6 For Figure 1Cross-sectional view of the nozzle assembly in the unlocked state in the illustrated embodiment.

[0022] Description of main component symbols:

[0023] Fastener striking tool 1000

[0024] Nozzle assembly 100

[0025] Nozzle 10

[0026] Card slot 10a

[0027] Connection section 11

[0028] Limit section 12

[0029] Nozzle connecting piece 20

[0030] Sleeve 21

[0031] Through hole 21a

[0032] Connection part 211

[0033] Guide surface 2111

[0034] Snap-in part 30

[0035] Clamping part 31

[0036] Bending part 311

[0037] Fitting part 312

[0038] Snap-in portion 32

[0039] Outer shell 200 Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the description of this application herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0043] Some embodiments of this application will be described in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0044] Embodiment

[0045] Figure 1 is a schematic structural diagram of a fastener driving tool 1000 in an embodiment of this application; Figure 2 is Figure 1 a schematic structural diagram of the nozzle assembly 100 in the shown embodiment in a locked state.

[0046] Refer to Figure 1 and Figure 2 According to an embodiment of this application, a fastener driving tool 1000 is provided, which includes a nozzle assembly 100. The nozzle assembly 100 includes a nozzle 10 and a nozzle connector 20. The nozzle 10 is used to eject fasteners (such as collated nails) to fix the fasteners to another object. The nozzle connector 20 is connected to other parts of the fastener driving tool 1000.

[0047] The fastener driving tool 1000 further includes a motor, a lifting mechanism, a firing pin, a piston, a nail magazine, a pusher, and a nailing base. When in use, when the nozzle 10 is pressed inward toward the side close to the nozzle connector 20, the nozzle connector 20 and the nozzle 10 move inward together, and the motor is started to drive the firing pin to drive the piston to compress air through the lifting mechanism. After the firing pin disengages from the lifting mechanism, the firing pin is released, and the firing pin strikes the fastener pushed into the nailing base by the pusher in the nail magazine, so that the fastener is ejected from the nozzle 10.

[0048] In some embodiments, as shown in combination with Figure 1 and Figure 2 the fastener driving tool 1000 further includes a housing 200, which is detachably sleeved outside the nozzle connector 20 to provide dust-proof and protection functions for the nozzle connector 20 and the nozzle 10. When the nozzle 10 needs to be disassembled and replaced, the housing 200 can be removed first, and then the nozzle 10 can be disassembled and replaced on the nozzle connector 20.

[0049] In some embodiments, the fastener driving tool 1000 further includes an elastic member (not shown in the figure), which elastically abuts against the nozzle connector 20 to apply an elastic force along the axial direction extending out of the housing 200 to the nozzle connector 20. Thus, after the fastener is ejected from the nozzle 10, the elastic force of the elastic member is used to reset the nozzle assembly 100.

[0050] Figure 3 For Figure 1 Schematic diagram of the disassembled state of the nozzle assembly 100 in the illustrated embodiment; Figure 4 For Figure 1 Side view of the nozzle assembly 100 in the locked state in the illustrated embodiment; Figure 5 For Figure 4 Cross-sectional view of the nozzle assembly 100 along line A-A in the illustrated embodiment; Figure 6 For Figure 1 Cross-sectional view of the nozzle assembly 100 in the unlocked state in the illustrated embodiment.

[0051] See Figures 3 to 5 , this embodiment provides a nozzle assembly 100, including a nozzle 10, a nozzle connector 20 and a clamping member 30.

[0052] A card slot 10a is provided on the outer periphery of the nozzle 10. The nozzle connector 20 includes a sleeve 21, which is sleeved outside the nozzle 10 and is provided with two through holes 21a. The two through holes 21a respectively correspond to the card slot 10a. The sleeve 21 has a connecting portion 211 located circumferentially between the two through holes 21a. The clamping member 30 includes a clamping portion 31 and two clamping portions 32. The clamping portion 31 is clamped on the outer periphery of the connecting portion 211, and the two clamping portions 32 are respectively connected to the circumferential two ends of the clamping portion 31. As Figure 5 And Figure 6 shown, the clamping member 30 has a locked state and an unlocked state. In the locked state, the clamping portion 32 can extend into the card slot 10a, and the clamping portion 32 can move out of the card slot 10a to switch from the locked state to the unlocked state.

[0053] For the above nozzle assembly 100, during use, in the locked state, the clamping portion 32 is located in the card slot 10a to axially lock the nozzle 10 to the sleeve 21, so that the nozzle 10 and the nozzle connector 20 can move axially together to trigger the ejection of the fastener from the nozzle 10. When the nozzle 10 needs to be replaced, by moving the clamping portion 32 out of the card slot 10a, the axial limit of the clamping portion 32 on the nozzle 10 can be released, so that the nozzle 10 can be taken out of the sleeve 21 without operating the fastener (such as screwing a nut) when taking out the nozzle 10. Therefore, it is convenient to quickly replace the nozzle 10, and the structure of the nozzle assembly 100 is simple. Since the nozzle 10 connected to the nozzle connector 20 can be replaced, the versatility of the nozzle assembly 100 in different use scenarios is improved.

[0054] It should be noted that the two through holes 21a respectively correspond to the clamping grooves 10a, so that in the locked state, the two through holes 21a are respectively in radial communication with the clamping grooves 10a.

[0055] In some embodiments, as Figure 5 shown, the clamping portion 31 includes a bent portion 311 and two cooperating portions 312. One ends of the two cooperating portions 312 are respectively connected to the two ends of the bent portion 311, and the ends of the cooperating portions 312 away from the bent portion 311 are connected to the clamping portion 32. In the locked state, the two cooperating portions 312 are cooperatively clamped on the two circumferential sides of the connecting portion 211, and there is a gap between the bent portion 311 and the connecting portion 211 in the radial direction. Combining Figure 6 shown, the bent portion 311 is made of an elastic material, so that in the locked state, the middle portion of the bent portion 311 can approach the connecting portion 211 in the radial direction, so as to switch from the locked state to the unlocked state. Thus, in the locked state, the two cooperating portions 312 are cooperatively clamped on the two circumferential sides of the connecting portion 211 to prevent the clamping member 30 from shaking relative to the connecting portion 211. The bent portion 311 is made of an elastic material, and there is a gap between the bent portion 311 and the connecting portion 211 to provide a space for the bent portion 311 to undergo elastic deformation. During use, in the locked state, the middle portion of the bent portion 311 is made to approach the connecting portion 211 in the radial direction, so that the two cooperating portions 312 open outwards, enabling the clamping portion 32 to be removed from the clamping groove 10a, thereby releasing the axial limit on the nozzle 10 (see Figure 3 ) and switching the clamping member 30 to the unlocked state. For example, when the nozzle 10 needs to be replaced, the middle portion of the bent portion 311 can be pressed towards the connecting portion 211 in the radial direction to move the clamping portion 32 out of the clamping groove 10a, and then the nozzle 10 can be pulled out of the sleeve 21, making the operation of replacing the nozzle 10 convenient.

[0056] It can be understood that the distance between the two ends of the bent portion 311 in the unlocked state is greater than the distance between the two ends of the bent portion 311 in the locked state. During the process of switching from the locked state to the unlocked state, the two ends of the bent portion 311 respectively drive the two cooperating portions 312 to open outwards. In the unlocked state, the end of the cooperating portion 312 connected to the clamping portion 32 is radially spaced from the connecting portion 211.

[0057] When in use, when it is necessary to install the nozzle 10 on the nozzle connector 20, the middle part of the bending part 311 can be pressed radially toward the side close to the connecting part 211, so that the clamping part 32 moves out of the clamping groove 10a. Then, the nozzle 10 is inserted into the sleeve 21 until the clamping groove 10a axially moves to the position of the through hole 21a, that is, the clamping groove 10a and the through hole 21a communicate radially. Then, release the pressing on the bending part 311, so that the two mating parts 312 move relatively closer under the elastic force of the bending part 311, thereby driving the clamping part 32 to extend into the clamping groove 10a to axially lock the nozzle 10 to the nozzle connector 20. Optionally, as Figure 5 shown, the two through holes 21a are located on the same side of the axis of the sleeve 21.

[0058] In some embodiments, as Figure 5 and Figure 6 shown, the circumferential two sides of the connecting part 211 are respectively provided with guiding surfaces 2111. During the process of the clamping member 30 switching from the locked state to the unlocked state, the guiding surfaces 2111 guide the clamping part 31 to open outward, so that the clamping part 32 moves out of the clamping groove 10a. In this way, under the guiding action of the guiding surfaces 2111, it is easier for the clamping member 30 to switch from the locked state to the unlocked state through operation.

[0059] In some embodiments, as Figure 5 shown, the clamping part 32 is concave radially inward into the sleeve 21, so that the clamping part 32 extends along an arc, which is beneficial to increasing the circumferential dimension of the clamping part 32 and improving the structural reliability of the clamping part 32, making the clamping part 32 not easily deformed.

[0060] In some embodiments, as Figure 2 and Figure 5 shown, in the locked state, the end of the clamping part 32 along the arc away from the clamping part 31 is located in the through hole 21a to avoid affecting the connection between the nozzle connector 20 and other components.

[0061] In some embodiments, in combination with Figure 3 and Figure 5 shown, the clamping groove 10a surrounds the outer peripheral side of the nozzle 10 to facilitate the clamping part 32 to extend into the clamping groove 10a after the nozzle 10 is inserted into the sleeve 21.

[0062] In some embodiments, in combination with Figure 2 and Figure 3As shown, the nozzle 10 includes a connecting section 11 and a limiting section 12 that are axially connected. The outer diameter of the connecting section 11 is smaller than that of the limiting section 12, and the outer diameter of the limiting section 12 is larger than the inner diameter of the sleeve 21. The card slot 10a is provided on the connecting section 11. In the locked state, the connecting section 11 passes through the sleeve 21, and the limiting section 12 is located outside the sleeve 21. When the nozzle 10 extends into the sleeve 21, the depth of the nozzle 10 extending into the sleeve 21 can be limited by the limiting section 12. Thus, when installing the nozzle 10, it is convenient to make the through hole 21a and the card slot 10a radially opposite, and further convenient to make the clamping portion 32 extend into the card slot 10a.

[0063] The above embodiments are only used to illustrate the technical solutions of the present application rather than to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A gun nozzle assembly, characterized in that: include: A gun nozzle, wherein a slot is provided on the outer periphery of the gun nozzle; A gun nozzle connecting piece, comprising a sleeve; the sleeve is sleeved outside the gun nozzle and is provided with two through holes, the two through holes respectively correspond to the slots, and the sleeve has a connecting portion circumferentially located between the two through holes; The clamping part includes a clamping portion and two clamping portions, wherein the clamping portion is clamped on the outer periphery of the connecting portion, and the two clamping portions are respectively connected to the circumferential ends of the clamping portion; the clamping part has a locked state and an unlocked state, and in the locked state, the clamping portion can extend into the slot, and the clamping portion can be moved out of the slot to switch from the locked state to the unlocked state.

2. The gun nozzle assembly according to claim 1, characterized in that: The clamping portion includes a bending portion and two matching portions, one end of the two matching portions is respectively connected to two ends of the bending portion, and one end of the matching portion away from the bending portion is connected to the clamping portion; In the locked state, the two matching portions are matched and clamped on both sides of the connecting portion in the circumferential direction, and a gap is provided between the bent portion and the connecting portion in the radial direction; The bent portion is made of an elastic material, so that in the locked state, the middle portion of the bent portion can approach the connecting portion in the radial direction, thereby switching from the locked state to the unlocked state.

3. The gun nozzle assembly according to claim 2, characterized in that: The connecting portion has guide surfaces on both sides of the circumference. When the clamping member is switched from the locked state to the unlocked state, the guide surfaces guide the clamping portion to open outwards so that the clamping portion is moved out of the clamping slot.

4. The gun nozzle assembly according to claim 1, characterized in that: The clamping portion is concave inwardly toward the sleeve in a radial direction so that the clamping portion extends along an arc.

5. The nozzle assembly according to claim 4, characterized in that: In the locked state, one end of the clamping portion away from the clamping portion along the arc direction is located in the through hole.

6. The gun nozzle assembly according to claim 1, characterized in that: The card slot surrounds the outer peripheral side of the gun nozzle.

7. The gun nozzle assembly according to claim 1, characterized in that: The gun nozzle comprises a connecting section and a limiting section connected in the axial direction, the outer diameter of the connecting section is smaller than the outer diameter of the limiting section, and the outer diameter of the limiting section is larger than the inner diameter of the sleeve; the clamping groove is provided in the connecting section; In the locked state, the connecting section passes through the sleeve, and the limiting section is located outside the sleeve.

8. A fastener striking tool, characterized in that: Comprising a gun nozzle assembly as claimed in any one of claims 1 to 7.

9. The fastener striking tool according to claim 8, characterized in that: The fastener striking tool also includes a shell, and the shell is detachably sleeved outside the gun nozzle connecting piece.

10. The fastener striking tool according to claim 9, characterized in that The fastener striking tool further comprises an elastic member, wherein the elastic member elastically abuts against the gun nozzle connecting member to apply an elastic force to the gun nozzle connecting member to extend out of the housing in the axial direction.

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