CN214537617U

CN214537617U - Novel bullet box structure of high reliability

Info

Publication number: CN214537617U
Application number: CN202120489812.2U
Authority: CN
Inventors: 林俊强; 梁斌; 付备荒; 谷建军; 刘清; 杨敏; 曾志炜; 钟少武
Original assignee: Shenzhen Newcross Technologies Co ltd
Current assignee: Shenzhen Newcross Technologies Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-10-29
Anticipated expiration: 2031-03-08

Abstract

The utility model belongs to the technical field of precision machine manufacturing structure technique and specifically relates to a novel bullet case structure of high reliability. The novel safe door lock comprises a box body, a guide rail, a rotary lock tongue and an electric control device, wherein a sliding block is arranged at the bottom of the box body, the sliding block is arranged on the guide rail and can slide on the guide rail, the rotary lock tongue and the electric control device are arranged at one end of the guide rail, a linear rolling bearing is arranged at one end of the box body, and the electric control device can drive the rotary lock tongue to rotate so that the rotary lock tongue can be meshed with the linear rolling bearing. The utility model discloses an use high-accuracy CNC machine to add the key structure spare of aluminium alloy cooperation copper sheathing and high-accuracy antifriction bearing as bullet box lock, the axiality of rotatory spring bolt is high, and the tolerance of beating is little. The double-shaft linear guide rail with strong bearing capacity is used, the ejection speed and the parallel precision are greatly improved, after the test, the fatigue and failure conditions do not occur, and the reliability is high; the reliability of automatic ejection of the cartridge magazine is improved, and the failure risk of key structural members of the cartridge magazine lock is greatly reduced.

Description

Novel bullet box structure of high reliability

Technical Field

The utility model belongs to the technical field of precision machine manufacturing structure technique and specifically relates to a novel bullet case structure of high reliability.

Background

The existing automatic ejection structure of the bullet box is characterized in that parts with lower manufacturing precision such as metal plates and bolts are used for structural parts of the lock, the fit tolerance of the rotary lock tongue is large, the rotary lock tongue is large in shaking in the using process, and the lock tongue is easy to block after being opened and closed for many times.

Secondly, the existing bullet box uses a ball guide rail, so that the bearing capacity is poor, the bullet box is easy to lose efficacy after being opened and closed for many times, and the reliability of automatic ejection of the bullet box is poor.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art existence, the utility model aims to provide a novel bullet case structure of high reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel cartridge case structure of high reliability, it includes box, guide rail, rotatory spring bolt and electrical control device, the bottom half is provided with the slider, the slider is installed on the guide rail and can slide on the guide rail, box and guide rail relative motion, rotatory spring bolt and electrical control device have been installed to the one end of guide rail, linear rolling bearing has been installed to the one end of box, electrical control device can drive rotatory spring bolt and rotate so that rotatory spring bolt can with linear rolling bearing interlock.

Preferably, the second end of the rotary bolt is provided with a connecting part, a pullback spring is arranged on the connecting part, and in a locking state, the pullback spring provides elastic force to pull the rotary bolt so that the rotary bolt is meshed with the linear rolling bearing.

Preferably, electrical control device is including installing the electromagnetism bolt of keeping away from box one side in guide rail one end, the second end connection electromagnetism bolt of rotatory spring bolt, electrical control device circular telegram actuation makes the electromagnetism bolt motion, the rotatory spring bolt of electromagnetism bolt drive rotates so that rotatory spring bolt can with the interlock of sharp antifriction bearing.

Preferably, the rotary lock further comprises a lever arranged at the bottom of the box body, one end of the lever is positioned on one side of the electromagnetic bolt, and the electromagnetic bolt is further pushed by pushing the lever so that the rotary lock tongue can be meshed with the linear rolling bearing.

Preferably, a pin is arranged below the rotary lock tongue, an aluminum piece is arranged on the guide rail, the rotary lock tongue is installed on the aluminum piece through the pin, and a copper sleeve is wrapped outside the pin.

Preferably, one end of the guide rail is provided with an ejection spring for ejecting the box body.

Preferably, the aluminum piece is machined by a CNC machine.

Since the technical scheme is used, the utility model discloses an use high-accuracy CNC machine to add the key structure spare of aluminium alloy cooperation copper sheathing and high-accuracy linear bearing as bullet case lock, the axiality of rotatory spring bolt is high, and the tolerance of beating is little. The double-shaft linear guide rail with strong bearing capacity is used, the ejection speed and the parallel precision are greatly improved, after the test, the fatigue and failure conditions do not occur, and the reliability is high; the reliability of automatic ejection of the cartridge magazine is improved, and the failure risk of key structural members of the cartridge magazine lock is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram (one) of an embodiment of the present invention;

fig. 2 is an exploded schematic view of an embodiment of the present invention;

fig. 3 is a schematic structural diagram (ii) of an embodiment of the present invention;

fig. 4 is a schematic diagram of the occlusion state of the embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 4, the novel high-reliability cartridge case structure provided by this embodiment includes a case 10, a guide rail 20, a rotary latch bolt 30, and an electrical control device 40, a slider 11 is disposed at the bottom of the case 10, the slider 11 is mounted on the guide rail 20 and can slide on the guide rail 20, the case 10 and the guide rail 20 move relatively, the rotary latch bolt 30 and the electrical control device 40 are mounted at one end of the guide rail 20, a linear rolling bearing 12 is mounted at one end of the case 10, and the electrical control device 40 can drive the rotary latch bolt 30 to rotate so that the rotary latch bolt 30 can be engaged with the linear rolling bearing 12.

Based on this, the utility model discloses an electrical control device 40, the rotatory spring bolt 30 of drive rotates so that rotatory spring bolt 30 can with straight line antifriction bearing 12 interlock or open, through using high-accuracy CNC machine to add the key structure spare that aluminium part 13 cooperation copper sheathing 14 and high-accuracy antifriction bearing 12 regard as bullet box lock, rotatory spring bolt 30's axiality is high, and the tolerance of beating is little. The double-shaft linear guide rail 20 with strong bearing capacity is used, so that the ejection speed and the parallel precision are greatly improved, and after the test, the fatigue and failure conditions do not occur, and the reliability is high; the reliability of automatic ejection of the cartridge magazine is improved, and the failure risk of key structural members of the cartridge magazine lock is greatly reduced.

A hook 31 is formed at a first end of the rotary latch 30, and the hook 31 is engaged with the linear rolling bearing 12.

A second end of the rotary lock tongue 30 is provided with a connecting part 32, a pull-back spring 33 is arranged on the connecting part 32, and in a locking state, the pull-back spring 33 provides elastic force to pull the rotary lock tongue 30 so that the rotary lock tongue 30 is meshed with the linear rolling bearing 12; the linear rolling bearing 12 is arranged at the tail end of the box body 10, the engagement of the linear rolling bearing 12 and the rotary bolt 30 realizes the locking function of the bullet box, and the elasticity provided by the pullback spring 33 ensures that the bolt cannot rebound to loosen the linear rolling bearing 12 due to vibration.

The electric control device 40 comprises an electromagnetic bolt 41 which is arranged at one end of the guide rail 20 and far away from one side of the box body 10, the second end of the rotary bolt 30 is connected with the electromagnetic bolt 41, the electric control device 40 is electrified to attract the electromagnetic bolt 41 to move, and the electromagnetic bolt 41 drives the rotary bolt 30 to rotate so that the rotary bolt 30 can be meshed with the linear rolling bearing 12.

The locking device further comprises a lever 50 arranged at the bottom of the box body 10, wherein one end of the lever 50 is positioned at one side of the electromagnetic bolt 41, and the lever 50 is pushed to further push the electromagnetic bolt 41 so that the rotary locking bolt 30 can be meshed with the linear rolling bearing 12.

A pin 60 is arranged below the rotary bolt 30, an aluminum piece 13 is arranged on the guide rail 20, the rotary bolt 30 is arranged on the aluminum piece 13 through the pin 60, and a copper sleeve 14 is wrapped outside the pin 60; the rotary bolt 30 is installed on a high-precision machined aluminum part 13 through a pin 60 and a copper sleeve 14, and the coaxiality is high. The jumping amplitude is small in the rotating process, the abrasion and failure are not easy to occur, the reliability is high, and the service life is long.

One end of the guide rail 20 is provided with an ejection spring 70 for ejecting the housing 10.

The aluminum piece 13 is machined by a CNC machine.

The guide rail 20 is a biaxial core linear guide rail.

The lock can be opened in two ways:

a. the key lock 80 rotates to push the lever 50, the other end of the lever 50 pushes the electromagnetic bolt 41, the rotating bolt 30 is loosened from the linear rolling bearing 12, and the cartridge case body 10 is automatically ejected and opened under the elastic force of the ejection spring 70.

b. The electromagnetic lock is electrified and closed by sending an instruction through the console, the rotary bolt 30 is loosened from the linear rolling bearing 12, and the bullet box body 10 is automatically ejected and opened under the elastic force of the ejection spring 70.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The utility model provides a novel bullet box structure of high reliability which characterized in that: the novel safe door lock comprises a box body, a guide rail, a rotary lock tongue and an electric control device, wherein a sliding block is arranged at the bottom of the box body, the sliding block is arranged on the guide rail and can slide on the guide rail, the box body and the guide rail move relatively, the rotary lock tongue and the electric control device are arranged at one end of the guide rail, a linear rolling bearing is arranged at one end of the box body, and the electric control device can drive the rotary lock tongue to rotate so that the rotary lock tongue can be meshed with the linear rolling bearing.

2. The new and highly reliable cartridge magazine structure of claim 1, wherein: the first end of the rotary spring bolt forms a hook part which is used for being meshed with the linear rolling bearing, the second end of the rotary spring bolt is provided with a connecting part, a pull-back spring is arranged on the connecting part, and under a locking state, the pull-back spring provides elastic force to pull the rotary spring bolt so that the rotary spring bolt is meshed with the linear rolling bearing.

3. The new and highly reliable cartridge magazine structure of claim 2, wherein: the electric control device comprises an electromagnetic bolt arranged at one end of the guide rail and far away from one side of the box body, the second end of the rotary bolt is connected with the electromagnetic bolt, the electric control device is electrified and attracted to enable the electromagnetic bolt to move, and the electromagnetic bolt drives the rotary bolt to rotate so that the rotary bolt can be meshed with the linear rolling bearing.

4. A new highly reliable bullet box structure as in claim 3 wherein: the rotary bolt is characterized by further comprising a lever arranged at the bottom of the box body, one end of the lever is located on one side of the electromagnetic bolt, and the lever is pushed to further push the electromagnetic bolt so that the rotary bolt can be meshed with the linear rolling bearing.

5. A new high reliability magazine structure as claimed in any one of claims 1 to 4, wherein: the rotary lock tongue is characterized in that a pin is arranged below the rotary lock tongue, an aluminum piece is arranged on the guide rail, the rotary lock tongue is arranged on the aluminum piece through the pin, and a copper sleeve is wrapped outside the pin.

6. The new and highly reliable magazine structure of claim 5, wherein: and one end of the guide rail is provided with an ejection spring for ejecting the box body.

7. The new and highly reliable magazine structure of claim 5, wherein: the aluminum part is machined by a CNC machine.