CN223013090U - Gun nozzle assembly and fastener striking tool - Google Patents

Abstract

The application 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. The periphery of the gun nozzle is provided with a clamping groove. The gun nozzle connecting piece comprises a sleeve, wherein the sleeve is sleeved outside the gun nozzle and is provided with two through holes, the two through holes respectively correspond to the clamping grooves, and the sleeve is provided with a connecting part positioned between the two through holes along the circumferential direction. The clamping piece comprises a clamping part and two clamping parts, wherein the clamping part is clamped at the periphery of the connecting part, the two clamping parts are respectively connected to two circumferential ends of the clamping part, the clamping piece is in a locking state and an unlocking state, in the locking state, the clamping part can extend into the clamping groove, and the clamping part can move out of the clamping groove so as to be switched from the locking state to the unlocking state. The application has the beneficial effects that the clamping part can be moved out of the clamping groove when in use, so that the gun nozzle can be taken out of the sleeve, and the gun nozzle is convenient to replace.

Description

Gun nozzle assembly and fastener striking tool

Technical Field

The application relates to the technical field of electric tools, in particular to a gun nozzle assembly and a fastener striking tool.

Background

A fastener driving tool is provided in the related art, which includes a gun nozzle for ejecting a fastener such as a nail. In order to meet different use scenes, the gun nozzle is often required to be replaced, however, after the locking pieces such as nuts and the like are unlocked by the fastener striking tool in the related technology, the gun nozzle is removed and replaced, and the operation is complex.

Disclosure of utility model

The application provides a gun nozzle assembly and a fastener striking tool so as to solve the problem of how to conveniently replace a gun nozzle.

According to one aspect of the present application, a gun nozzle assembly is provided that includes a gun nozzle, a gun nozzle connector, and a clip. The periphery of the gun nozzle is provided with a clamping groove. The gun nozzle connecting piece comprises a sleeve, wherein the sleeve is sleeved outside the gun nozzle and is provided with two through holes, the two through holes respectively correspond to the clamping grooves, and the sleeve is provided with a connecting part positioned between the two through holes along the circumferential direction. The clamping piece comprises a clamping part and two clamping parts, wherein the clamping part is clamped at the periphery of the connecting part, the two clamping parts are respectively connected to two circumferential ends of the clamping part, the clamping piece is in a locking state and an unlocking state, in the locking state, the clamping part can extend into the clamping groove, and the clamping part can move out of the clamping groove so as to be switched from the locking state to the unlocking state.

The gun nozzle assembly can be used by moving the clamping part out of the clamping groove, so that the gun nozzle can be taken out of the sleeve without operating a fastener (such as screwing a nut) when the gun nozzle is taken out, and the gun nozzle is convenient to replace.

In one embodiment, the clamping portion comprises a bending portion and two matching portions, one ends of the two matching portions are respectively connected to two ends of the bending portion, and one end, away from the bending portion, of the matching portion is connected with the clamping portion. In the locking state, the two matching parts are clamped on two circumferential sides of the connecting part in a matched mode, and a gap is formed between the bending part and the connecting part along the radial direction. The bending portion is made of an elastic material so that, in the locked state, a middle portion of the bending portion can be radially moved closer to the connecting portion, thereby switching from the locked state to the unlocked state.

In one embodiment, the two circumferential sides of the connecting portion are respectively provided with a guiding surface, and the guiding surfaces guide the clamping portion to open outwards in the process that the clamping piece is switched from the locking state to the unlocking state, so that the clamping portion is moved out of the clamping groove.

In one embodiment, the clamping portion is recessed radially toward the sleeve such that the clamping portion extends in an arc.

In one embodiment, in the locked state, the clamping portion is located in the through hole along an arc toward an end away from the clamping portion.

In one embodiment, the clamping groove surrounds the outer circumferential side of the gun nozzle.

In one embodiment, the gun nozzle comprises a connecting section and a limiting section which are connected in the axial direction, the outer diameter of the connecting section is smaller than that of the limiting section, the outer diameter of the limiting section is larger than that of the sleeve, and the clamping groove is formed in the connecting section. Under the locking state, the connecting section wears to locate the sleeve, and the spacing section is located outside the sleeve.

In accordance with another aspect of the present application, a fastener striking tool is provided, including a gun nozzle assembly as described in any of the embodiments above.

In one embodiment, the fastener driving tool further includes a housing removably sleeved over the gun nozzle attachment.

In one embodiment, the fastener driving tool further includes an elastic member that elastically abuts against the nozzle connecting member to apply an elastic force to the nozzle connecting member that axially protrudes out of the housing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a fastener driving tool in accordance with one embodiment of the present application.

Fig. 2 is a schematic view of the gun nozzle assembly in the embodiment of fig. 1 in a locked state.

FIG. 3 is a schematic view of the gun nozzle assembly of the embodiment of FIG. 1 in an exploded view.

Fig. 4 is a side view of the gun nozzle assembly of the embodiment of fig. 1 in a locked state.

FIG. 5 is a cross-sectional view of the gun nozzle assembly of the embodiment of FIG. 4 taken along line A-A.

Fig. 6 is a cross-sectional view of the gun nozzle assembly of the embodiment of fig. 1 in an unlocked state.

Description of main reference numerals:

fastener striking tool 1000

Gun nozzle assembly 100

Gun nozzle 10

Card slot 10a

Connection section 11

Spacing section 12

Gun nozzle connecting piece 20

Sleeve 21

Through hole 21a

Connection portion 211

Guide surface 2111

Clamping piece 30

Clamping portion 31

Bending portion 311

Mating portion 312

Clamping part 32

Outer casing 200

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, 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 terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

Some embodiments of the application are described in detail. The following embodiments and features of the embodiments may be combined with each other without collision.

Examples

Fig. 1 is a schematic view of a fastener driving tool 1000 according to an embodiment of the present application, and fig. 2 is a schematic view of the gun nozzle assembly 100 according to the embodiment of fig. 1 in a locked state.

Referring to fig. 1 and 2, an embodiment of the present application provides a fastener impacting tool 1000 including a gun nozzle assembly 100. The gun nozzle assembly 100 includes a gun nozzle 10 and a gun nozzle attachment 20, the gun nozzle 10 being used to fire a fastener (e.g., a chain riveting) to secure the fastener to another object. The gun nozzle attachment 20 is attached to other parts of the fastener striking tool 1000.

The fastener-driving tool 1000 also includes a motor, a lifting mechanism, a striker, a piston, a magazine, a staple pusher, and a staple cartridge. In use, when the gun nozzle 10 is pressed inwards towards the side close to the gun nozzle connecting piece 20, the gun nozzle connecting piece 20 and the gun nozzle 10 move inwards together, the motor is started to drive the firing pin to drive the piston to compress air through the lifting mechanism, after the firing pin is disengaged from the lifting mechanism, the firing pin is released, and the firing pin hits a fastener in the nailing box, which is pushed into the nailing seat by the nail pusher, so that the fastener is ejected from the gun nozzle 10.

In some embodiments, as shown in connection with fig. 1 and 2, the fastener impacting tool 1000 further includes a housing 200, the housing 200 being removably received over the gun nozzle attachment 20 to provide dust and protection to the gun nozzle attachment 20 and gun nozzle 10. When the gun nozzle 10 needs to be replaced, the housing 200 can be removed first, and then the gun nozzle 10 can be replaced with the gun nozzle connector 20.

In some embodiments, the fastener striking tool 1000 further includes an elastic member (not shown) that elastically abuts against the nozzle connecting member 20 to apply an elastic force to the nozzle connecting member 20 that axially protrudes out of the housing 200, thereby resetting the nozzle assembly 100 by the elastic force of the elastic member after the fastener is ejected from the nozzle 10.

Fig. 3 is a schematic view showing an exploded state of the gun nozzle assembly 100 in the embodiment shown in fig. 1, fig. 4 is a side view showing the gun nozzle assembly 100 in the embodiment shown in fig. 1 in a locked state, fig. 5 is a sectional view of the gun nozzle assembly 100 in the embodiment shown in fig. 4 taken along the line A-A, and fig. 6 is a sectional view showing the gun nozzle assembly 100 in the embodiment shown in fig. 1 in an unlocked state.

Referring to fig. 3 to 5, the present embodiment provides a gun nozzle assembly 100 including a gun nozzle 10, a gun nozzle connector 20 and a clip 30.

The periphery of the gun nozzle 10 is provided with a clamping groove 10a, the gun nozzle connecting piece 20 comprises a sleeve 21, the sleeve 21 is sleeved outside the gun nozzle 10 and is provided with two through holes 21a, the two through holes 21a respectively correspond to the clamping groove 10a, and the sleeve 21 is provided with a connecting part 211 positioned between the two through holes 21a along the circumferential direction. The clamping member 30 includes a clamping portion 31 and two clamping portions 32, the clamping portion 31 is clamped at the outer periphery of the connecting portion 211, and the two clamping portions 32 are respectively connected to two circumferential ends of the clamping portion 31. As shown in fig. 5 and 6, the locking member 30 has a locked state and an unlocked state, in the locked state, the locking portion 32 can extend into the card slot 10a, and the locking portion 32 can be moved out of the card slot 10a to switch from the locked state to the unlocked state.

In use, the gun nozzle assembly 100 is in the locked state, the engaging portion 32 is located in the engaging groove 10a to axially lock the gun nozzle 10 to the sleeve 21, so that the gun nozzle 10 and the gun nozzle connector 20 can move together in the axial direction to trigger the fastener to be ejected from the gun nozzle 10. When the gun nozzle 10 needs to be replaced, the clamping part 32 is moved out of the clamping groove 10a, namely, the axial limit of the clamping part 32 to the gun nozzle 10 can be released, so that the gun nozzle 10 can be taken out of the sleeve 21 without operating a fastener (such as screwing a nut) when the gun nozzle 10 is taken out, the gun nozzle 10 is convenient to replace quickly, and the gun nozzle assembly 100 is simple in structure. The versatility of the gun nozzle assembly 100 in different use scenarios is enhanced by the replaceable gun nozzle 10 that is connected to the gun nozzle connector 20.

The two through holes 21a correspond to the card slots 10a, respectively, so that in the locked state, the two through holes 21a communicate with the card slots 10a in the radial direction, respectively.

In some embodiments, as shown in fig. 5, the clamping portion 31 includes a bending portion 311 and two mating portions 312, one ends of the two mating portions 312 are respectively connected to two ends of the bending portion 311, and one end of the mating portion 312 away from the bending portion 311 is connected to the clamping portion 32. In the locked state, the two engaging portions 312 are engaged with each other on both sides of the connecting portion 211 in the circumferential direction, and a gap is provided between the bent portion 311 and the connecting portion 211 in the radial direction. As shown in fig. 6, the bending portion 311 is made of an elastic material so that, in the locked state, the middle portion of the bending portion 311 can be radially moved closer to the connecting portion 211, thereby switching from the locked state to the unlocked state. In this way, in the locked state, the two engaging portions 312 are cooperatively clamped at two circumferential sides of the connecting portion 211, so as to prevent the clamping member 30 from shaking relative to the connecting portion 211. The bending portion 311 is made of an elastic material, and a gap is provided between the bending portion 311 and the connecting portion 211 to provide a space in which the bending portion 311 can elastically deform. In use, in the locked state, the middle part of the bending part 311 is made to approach the connecting part 211 along the radial direction, so that the two matching parts 312 are opened outwards, the clamping part 32 can be moved out of the clamping groove 10a, the axial limit of the gun nozzle 10 (see fig. 3) is released, and the clamping piece 30 is switched to the unlocked state. For example, when the gun nozzle 10 needs to be replaced, the middle part of the bending part 311 can be pressed towards the side close to the connecting part 211 along the radial direction, so that the clamping part 32 is moved out of the clamping groove 10a, and then the gun nozzle 10 is pulled out of the sleeve 21, so that the gun nozzle 10 can be replaced conveniently.

It can be understood that the distance between the two ends of the bending portion 311 in the unlocked state is greater than the distance between the two ends of the bending portion 311 in the locked state, and the two ends of the bending portion 311 respectively drive the two matching portions 312 to open outwards during the process of switching from the locked state to the unlocked state. In the unlocked state, an end of the engaging portion 312 connected to the engaging portion 32 is spaced apart from the connecting portion 211 in the radial direction.

In use, when the gun nozzle 10 is required to be mounted on the gun nozzle connecting piece 20, the middle part of the bending part 311 can be pressed towards the side close to the connecting part 211 along the radial direction, so that the clamping part 32 is removed from the clamping groove 10a, and then the gun nozzle 10 is extended into the sleeve 21 until the clamping groove 10a moves to the position of the through hole 21a along the axial direction, namely, the clamping groove 10a is communicated with the through hole 21a along the radial direction. Then, the pressing of the bending portion 311 is released, so that the two matching portions 312 are relatively close under the elastic force of the bending portion 311, and the clamping portion 32 is driven to extend into the clamping groove 10a, so as to axially lock the gun nozzle 10 to the gun nozzle connector 20. Alternatively, as shown in fig. 5, two through holes 21a are located on the same side of the axis of the sleeve 21.

In some embodiments, as shown in fig. 5 and 6, the two circumferential sides of the connecting portion 211 are respectively provided with a guiding surface 2111, and during the process of switching the locking state of the locking member 30 to the unlocking state, the guiding surface 2111 guides the clamping portion 31 to open outwards, so that the locking portion 32 moves out of the locking slot 10 a. In this way, the locking member 30 is more easily switched from the locked state to the unlocked state by the operation under the guiding action of the guiding surface 2111.

In some embodiments, as shown in fig. 5, the clamping portion 32 is recessed toward the sleeve 21 in a radial direction, so that the clamping portion 32 extends along an arc, which is beneficial to increasing the size of the clamping portion 32 along the circumferential direction and improving the structural reliability of the clamping portion 32, so that the clamping portion 32 is not easy to deform.

In some embodiments, as shown in fig. 2 and 5, in the locked state, the end of the clamping portion 32 that is away from the clamping portion 31 along the arc is located in the through hole 21a, so as to avoid affecting the connection of the gun nozzle connector 20 with other components.

In some embodiments, as shown in fig. 3 and 5, the clamping groove 10a surrounds the outer circumference of the gun nozzle 10, so as to facilitate the clamping portion 32 to extend into the clamping groove 10a after the gun nozzle 10 extends into the sleeve 21.

In some embodiments, as shown in fig. 2 and 3, the gun nozzle 10 includes a connecting section 11 and a limiting section 12 connected along an axial direction, the outer diameter of the connecting section 11 is smaller than the outer diameter of the limiting section 12, the outer diameter of the limiting section 12 is larger than the inner diameter of the sleeve 21, and the clamping groove 10a is formed in the connecting section 11. In the locked state, the connecting section 11 is arranged on the sleeve 21 in a penetrating manner, and the limiting section 12 is arranged outside the sleeve 21, so that when the gun nozzle 10 stretches into the sleeve 21, the depth of the gun nozzle 10 stretching into the sleeve 21 can be limited through the limiting section 12, and when the gun nozzle 10 is installed, the through hole 21a and the clamping groove 10a are conveniently opposite in the radial direction, and the clamping part 32 stretches into the clamping groove 10a conveniently.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. A gun nozzle assembly, comprising:

the gun nozzle is provided with a clamping groove at the periphery;

The gun nozzle connecting piece comprises a sleeve, wherein the sleeve is sleeved outside the gun nozzle and is provided with two through holes, the two through holes respectively correspond to the clamping grooves, and the sleeve is provided with a connecting part positioned between the two through holes along the circumferential direction;

The clamping piece comprises a clamping part and two clamping parts, wherein the clamping part is clamped at the periphery of the connecting part, the two clamping parts are respectively connected to two circumferential ends of the clamping part, the clamping piece is in a locking state and an unlocking state, in the locking state, the clamping part can extend into the clamping groove, and the clamping part can move out of the clamping groove so as to be switched from the locking state to the unlocking state.

2. The gun nozzle assembly according to claim 1, wherein the clamping part comprises a bending part and two matching parts, one ends of the two matching parts are respectively connected with two ends of the bending part, and one end of the matching part away from the bending part is connected with the clamping part;

In the locking state, the two matching parts are clamped on two circumferential sides of the connecting part in a matching way, and a gap is formed between the bending part and the connecting part along the radial direction;

The bending portion is made of an elastic material so that, in the locked state, a middle portion of the bending portion can be radially brought closer to the connecting portion, thereby switching from the locked state to the unlocked state.

3. The gun nozzle assembly as claimed in claim 2, wherein the connecting portion has guide surfaces on both sides in a circumferential direction, respectively, the guide surfaces guiding the clamping portion to open outwardly to remove the clamping portion from the clamping groove during switching of the clamping member from the locked state to the unlocked state.

4. The gun nozzle assembly of claim 1 wherein said clip is recessed radially toward said sleeve such that said clip extends in an arc.

5. The gun nozzle assembly of claim 4 wherein in said locked condition said clip portion is positioned within said throughbore at an end that is arcuately remote from said clip portion.

6. The gun nozzle assembly of claim 1 wherein said slot surrounds an outer peripheral side of said gun nozzle.

7. The gun nozzle assembly according to claim 1, wherein the gun nozzle comprises a connecting section and a limiting section which are connected in the axial direction, 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;

In the locking state, the connecting section penetrates through the sleeve, and the limiting section is located outside the sleeve.

8. A fastener impacting tool comprising a gun nozzle assembly according to any one of claims 1 to 7.

9. The fastener driving tool of claim 8 further comprising a housing removably nested outside of the gun nozzle attachment.

10. The fastener driving tool of claim 9 further comprising a resilient member resiliently abutting the nozzle connector to exert a resilient force on the nozzle connector axially extending out of the housing.