CN219359384U - Brake pin, firing release device and nail shooter - Google Patents

Abstract

The utility model relates to the technical field of nail shooters, in particular to a brake pin, a firing release device and a nail shooter, wherein the brake pin comprises a first section, a second section and a third section, the diameter of the first section is larger than that of the second section, and the diameter of the second section is smaller than that of the third section; the third section is hemispherical, gaps are formed in two sides of the third section, the second section is located at the gaps to form a first step, and a second step is formed between the first section and the second section. According to the trigger device, the contact part between the brake pin and the trigger sleeve is changed from the original point-to-surface contact to the surface-to-surface contact, so that the basic area can be increased, the influence of abrasion on the brake pin is effectively reduced, meanwhile, the top surface of the third section is designed to be the surface, the trigger is also the surface-to-surface contact, and the brake pin moves up and down in the trigger hammer more smoothly.

Description

Brake pin, firing release device and nail shooter

Technical Field

The utility model relates to the technical field of nail shooting devices, in particular to a brake pin, a firing release device and a nail shooting device.

Background

The nail shooter is a tool for driving nails (or steel nails) (hereinafter, collectively referred to as nails) into a building body by using a gunpowder gas or a gas or a compressed air (hereinafter, simply referred to as gas) generated by firing a nail shooter as a power. Most commonly used for finishing places such as suspended ceiling construction, and the like, when cable installation and hanging are carried out, a cable hanging member is installed for use. In use, the nail and hanger (typically a bent sheet metal structure) are mated together, then the tail end of the nail is installed into the nail shooter, the nail shooter is driven, the nail is ejected at high speed together with the hanger, and the hanger is driven into and secured at the mounting point.

CN 206527705U discloses a firing release device applied to an axial nail shooter, wherein the top of a brake pin is a curved surface, as shown in fig. 1, when the brake pin slides in a through groove in a firing sleeve, a point on the brake pin contacts with the inner wall of the through groove, after a period of use, the contact part of the brake pin and the firing sleeve is worn, so that the firing slip and the unsmooth firing occur.

Disclosure of Invention

The utility model provides a brake pin, a firing release device and a nail shooter, aiming at the problems that the top of the brake pin is worn after the brake pin with a curved surface is used for a period of time, firing slip occurs and firing is not smooth.

In order to achieve the above object, the present utility model provides the following technical solutions:

in a first aspect, the present application provides a brake pin comprising a first section, a second section, and a third section, the first section having a diameter greater than the diameter of the second section, the second section having a diameter less than the diameter of the third section; the third section is hemispherical, gaps are formed in two sides of the third section, the second section is located at the gaps to form a first step, and a second step is formed between the first section and the second section.

The gap has been set up on the lateral wall of this application with the third section, and whole breach just forms friction portion like this, with the friction between the face and the face of being through between the groove of firing cover, the whole wearing and tearing to the brake pin is less like this, just has appeared wearing and tearing in a place, because the friction surface is bigger, so is less than the whole influence of brake pin, the brake pin appears firing after long-time use and skids, the probability that the percussion is unsmooth can reduce.

Preferably, the edge of the hemispherical third section is a vertical section, so that the whole brake pin can be positioned in the hole of the hammer when the brake pin is installed, and the installation is convenient.

Preferably, the bottom of vertical section is equipped with the linkage segment, the contained angle between linkage segment and the vertical section is the obtuse angle, the contained angle between linkage segment and the second section is the obtuse angle. The hammer is cylindrical, so that the hole for mounting the brake pin, which is processed on the hammer, cannot be a regular round hole, and the obtuse angle design can lead the brake pin to have a guiding effect, so that the brake pin cannot generate dryness in the up-and-down moving process.

Preferably, a first chamfer is arranged at the first step, and a second chamfer is arranged at the second step corresponding to the first step. The first chamfer and the second chamfer allow the detent pin to act as a slow continuous transition in upward and downward direction rather than snapping up and down.

Preferably, the top of the third section far away from the second section is a plane, so that the third section is in whole-surface contact with the firing surface when in action, and firing is facilitated.

Preferably, a holding cavity is arranged in the first section, and a top spring for ejecting the brake pin can be installed in the holding cavity.

Preferably, the cross section of the top of the accommodating cavity is triangular, the angle of the vertex angle alpha is 100-150 degrees, and the top is limited by the triangular shape after the top spring is placed in the accommodating cavity, and the top spring is placed to shake.

Preferably, the bottom of holding the chamber is loudspeaker form, conveniently plays the effect of direction to the top spring.

In a second aspect, the present application provides a firing release device comprising a brake pin as described above.

In a third aspect, the present application provides a staple gun comprising a firing release as described above.

Compared with the prior art, the utility model has the beneficial effects that: according to the trigger device, the contact part between the brake pin and the trigger sleeve is changed from the original point-to-surface contact to the surface-to-surface contact, so that the basic area can be increased, the influence of abrasion on the brake pin is effectively reduced, meanwhile, the top surface of the third section is designed to be the surface, the trigger is also the surface-to-surface contact, and the brake pin moves up and down in the trigger hammer more smoothly.

Description of the drawings:

FIG. 1 is a schematic view of a conventional brake pin;

FIG. 2 is a schematic structural view of the nailer;

FIG. 3 is a schematic structural view of a brake pin provided in the present application;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a top view of FIG. 3;

fig. 6 is a cross-sectional view taken along A-A of fig. 5.

The marks in the figure: 1-brake pin, 2-firing spring, 3-reset spring, 4-handle, 5-firing sleeve, 6-hammer, 7-main sleeve, 8-top spring, 101-first section, 102-second section, 103-third section, 104-notch, 105-first step, 106-second step, 107-vertical section, 108-connecting section, 109-first chamfer, 110-second chamfer, 111-receiving cavity.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

As shown in fig. 2, the application provides a nail shooter, which comprises a firing spring 2, a reset spring 3, a handle 4 and a firing release device, wherein the firing release device comprises a firing sleeve 5, a hammer 6 and a main sleeve 7, a through groove is formed in the firing sleeve 5, and the tail end of the through groove is a through hole; a brake pin 1 is arranged on the hammer 6, and a top spring 8 is arranged below the brake pin 1; the front end of the hammer 6 is provided with a firing pin.

As shown in fig. 3, the brake pin 1 includes a first segment 101, a second segment 102, and a third segment 103, the first segment 101 having a diameter larger than that of the second segment 102, and a second step 106 being formed between the first segment 101 and the second segment 102. The diameter of the second section 102 is smaller than the diameter of the third section 103. The third section 103 is hemispherical, notches 104 are formed in two sides of the third section 103, and the second section 102 is located at the notches 104 to form a first step 105.

The top of the third section 103 remote from the second section 102 is planar. The diameter of the third section 103 of the brake pin 1 at its maximum is almost the same as the diameter of the first section 101.

The first section 101 is internally provided with a holding cavity 111, the holding cavity 111 is used for installing the top spring 8, in order to enable the top spring 8 to shake in the holding cavity 111, as shown in a sectional view of the brake pin 1 in fig. 6, a cross section of the top of the holding cavity 111 is triangular, an angle of a vertex angle alpha is 100-150 degrees, preferably 120 degrees, the top spring 8 is conveniently fixed left and right, in order to facilitate the top spring 8 to smoothly enter the holding cavity 111, the bottom of the holding cavity is designed into a bell mouth, and the guiding function is achieved.

The first section 101 is hemispherical, the edge of the first section 101 is a vertical section 107, a connecting section 108 is arranged at the bottom of the vertical section 107, an included angle between the connecting section 108 and the vertical section 107 is an obtuse angle, and an included angle between the connecting section 108 and the second section 102 is an obtuse angle.

The first step 105 is provided with a first chamfer 109, and the second step 106 is provided with a second chamfer 110 corresponding to the first step 105.

The application also provides a trigger release device which comprises the brake pin, the firing pin sleeve, the firing spring and the firing pin body.

The application also provides a nail shooter, which comprises the firing release device, the silencing sleeve, the fixing sleeve, the reset spring and the handle.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A brake pin, characterized by comprising a first section (101), a second section (102) and a third section (103), the first section (101) having a diameter larger than the second section (102), the second section (102) having a diameter smaller than the third section (103); the third section (103) is hemispherical, gaps (104) are formed in two sides of the third section (103), the second section (102) is located at the gaps (104) to form a first step (105), and a second step (106) is formed between the first section (101) and the second section (102).

2. A brake pin according to claim 1, characterized in that the edge of the hemispherical third section (103) is a vertical section (107).

3. The brake pin according to claim 2, characterized in that the bottom of the vertical section (107) is provided with a connecting section (108), the angle between the connecting section (108) and the vertical section (107) is an obtuse angle, and the angle between the connecting section (108) and the second section (102) is an obtuse angle.

4. The brake pin according to claim 1, characterized in that a first chamfer (109) is provided at a first step (105), and a second chamfer (110) is provided at a second step (106) corresponding to the first step (105).

5. A brake pin according to claim 1, characterized in that the top of the third section (103) remote from the second section (102) is planar.

6. A brake pin according to claim 1, characterized in that the first section (101) is provided with a receiving cavity (111) therein.

7. A brake pin according to claim 6, characterized in that the top of the receiving cavity (111) is triangular in cross section, the angle of the apex angle α being 100 ° -150 °.

8. A brake pin according to claim 6, characterized in that the bottom of the receiving cavity (111) is trumpet-shaped.

9. A firing release comprising the brake pin of any one of claims 1-8.

10. A nail gun comprising the firing release of claim 9.