CN209207420U - Cartridge clip locking mechanism - Google Patents

Abstract

This application discloses cartridge clip locking mechanisms, including fixing seat, pin shaft, fixed hook and torsional spring, the fixed hook is rotatablely installed by pin shaft in fixing seat, the torsional spring is sheathed on pin shaft by the circular hole of itself, the torsional spring after driving fixed hook to rotate for resetting, hook face is provided on the fixed hook, the hook face is used to contact with fixing seat.The utility model has the following beneficial effects: increasing the contact area with fixing seat by the way that hook face is arranged on fixed hook, the friction on unit area is reduced, the abrasion in hook face is significantly reduced, extends the service life of fixed hook.

Description

Cartridge clip locking mechanism

Technical field

The utility model relates to pneumatic equipment field more particularly to a kind of cartridge clip locking mechanisms.

Background technique

Cartridge clip locking device is the important composition component on pneumatic stapler, current cartridge clip locking device such as 1 institute of attached drawing Show, including (4) four fixing seat (1), pin shaft (2), stay hook (3) and torsional spring parts, wherein the structure such as attached drawing of stay hook (3) 2 and attached drawing 3 shown in, two hook points (301) of stay hook (3) are contacted with fixing seat (1), due to the two of stay hook (3) A hook point (301) is prone to wear in contacting with fixing seat (1), so that stay hook (3) is not available because of abrasion easily.It needs The when cartridge clip locking device to be illustrated is mounted in mounting base, and is not drawn in mounting base in attached drawing 1.

Utility model content

The utility model is in view of the above-mentioned problems, propose a kind of cartridge clip locking mechanism.

The technical solution that the utility model is taken is as follows:

A kind of cartridge clip locking mechanism, including fixing seat, pin shaft, fixed hook and torsional spring, the fixed hook pass through pin shaft It is rotatablely installed in fixing seat, the torsional spring is sheathed on pin shaft by the circular hole of itself, and the torsional spring is for driving fixed extension It is resetted after hook rotation, hook face is provided on the fixed hook, the hook face is used to contact with fixing seat.

Fixed hook is contacted using hook face with fixing seat in the present apparatus, relative in attached drawing 1, attached drawing 2 and attached drawing 3 Hook point contact is face contact between hook face and fixing seat, and face contact is bigger relative to the contact surface of point contact, in extruding force It is equal in magnitude in the case where, the frictional force that face contact unit area is subject to is smaller, and the abrasion for linking up with face is less relative to hook point.

The present apparatus increases the contact area with fixing seat by the way that hook face is arranged on fixed hook, reduces unit area On friction, significantly reduce the abrasion in hook face, extend the service life of fixed hook.

Optionally, support lugn is provided on the fixed hook, the support lugn is used to contact with fixing seat, and props up Flange is supportted between pin shaft and hook face.

Optionally, the support lugn is the support lugn of arc-shaped.

Optionally, the fixing seat offers channel, the torsional spring one for matching with mounting base in the fixing seat End resists fixed hook, and the torsional spring other end passes through the channel and contacts with mounting base.

Optionally, the two side ends of the fixed hook are arc end surface.

Optionally, it is both provided with pin hole on the fixing seat and fixed hook, the pin shaft is located in the pin hole.

Optionally, the fixing seat is metal fixing seat, and the fixed hook is metal fixed hook.

The beneficial effects of the utility model are: increasing the contact with fixing seat by the way that hook face is arranged on fixed hook Area reduces the friction on unit area, significantly reduces the abrasion in hook face, extend the service life of fixed hook.

Detailed description of the invention:

Fig. 1 is cartridge clip locking device structure simplified schematic diagram；

Fig. 2 is stay hook schematic perspective view；

Fig. 3 is the top view of stay hook；

Fig. 4 is cartridge clip locking mechanism simplified schematic diagram；

Fig. 5 is fixed hook structure schematic diagram.

Each appended drawing reference in figure are as follows: 1, fixing seat, 101, channel, 2, pin shaft, 3, stay hook, 301, hook point, 4, torsional spring, 5, Mounting base, 6, fixed hook, 601, hook face, 602, support lugn, 603, arc end surface.

Specific embodiment:

Below with reference to each attached drawing, the utility model is described in detail.

As shown in attached drawing 4 and attached drawing 5, a kind of cartridge clip locking mechanism, including fixing seat 1, pin shaft 2, fixed hook 6 and torsional spring 4, fixed hook 6 is rotatablely installed by pin shaft 2 in fixing seat 1, and torsional spring 4 is sheathed on pin shaft 2 by the circular hole of itself, torsional spring 4, for resetting after driving fixed hook 6 to rotate, are provided with hook face 601, hook face 601 is used for fixing seat on fixed hook 6 1 contact.

Fixed hook 6 is contacted using hook face 601 with fixing seat 1 in the present apparatus, relative to attached drawing 1, attached drawing 2 and attached drawing Hook point contact in 3 is face contact between hook face 601 and fixing seat 1, and face contact relative to point contact contact surface more Greatly, extruding force it is equal in magnitude in the case where, the frictional force that face contact unit area is subject to is smaller, link up with face 601 abrasion It is less relative to hook point.

The present apparatus increases the contact area with fixing seat 1 by the way that hook face 601 is arranged on fixed hook 6, reduces single Friction in plane product, significantly reduces the abrasion in hook face 601, extends the service life of fixed hook 6.

As shown in attached drawing 4 and attached drawing 5, support lugn 602 is provided on fixed hook 6, support lugn 602 is used for fixation Seat 1 contacts, and support lugn 602 is located between pin shaft 2 and hook face 601.

As shown in attached drawing 4 and attached drawing 5, support lugn 602 is the support lugn 602 of arc-shaped.

As shown in attached drawing 4 and attached drawing 5, fixing seat 1 is used to match with mounting base 5, and channel 101 is offered in fixing seat 1, 4 one end of torsional spring resists fixed hook 6, and 4 other end of torsional spring passes through channel 101 and contacts with mounting base 5.

As shown in attached drawing 4 and attached drawing 5, the two side ends of fixed hook 6 are arc end surface 603.

As shown in attached drawing 4 and attached drawing 5, pin hole is both provided in fixing seat 1 and fixed hook 6, pin shaft 2 is located in pin hole.

As shown in attached drawing 4 and attached drawing 5, fixing seat 1 is metal fixing seat 1, and fixed hook 6 is metal fixed hook 6.

The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model Range, it is all with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it His relevant technical field similarly includes within the protection scope of the present utility model.

Claims (7)

1. a kind of cartridge clip locking mechanism, including fixing seat, pin shaft, fixed hook and torsional spring, the fixed hook is turned by pin shaft Dynamic to be installed in fixing seat, the torsional spring is sheathed on pin shaft by the circular hole of itself, and the torsional spring is for driving fixed hook It is resetted after rotation, which is characterized in that hook face is provided on the fixed hook, the hook face is used to contact with fixing seat.

2. cartridge clip locking mechanism as described in claim 1, which is characterized in that it is provided with support lugn on the fixed hook, The support lugn is used to contact with fixing seat, and support lugn is between pin shaft and hook face.

3. cartridge clip locking mechanism as claimed in claim 2, which is characterized in that the support lugn is that the support of arc-shaped is convex Edge.

4. cartridge clip locking mechanism as described in claim 1, which is characterized in that the fixing seat is used to match with mounting base, Channel is offered in the fixing seat, the one end of torsional spring resists fixed hook, and the torsional spring other end passes through the channel and installation Seated connection touching.

5. cartridge clip locking mechanism as described in claim 1, which is characterized in that the two side ends of the fixed hook are arc end Face.

6. cartridge clip locking mechanism as described in claim 1, which is characterized in that be both provided on the fixing seat and fixed hook Pin hole, the pin shaft are located in the pin hole.

7. cartridge clip locking mechanism as described in claim 1, which is characterized in that the fixing seat is metal fixing seat, described solid Fixed hook is metal fixed hook.