CN212105461U - Silent lock - Google Patents

Abstract

The utility model relates to a silent lock, which comprises a housin, casing one side is equipped with interior welt, be equipped with oblique tongue hole and square tongue hole on the interior welt, be equipped with oblique tongue and square tongue in the casing, be equipped with oblique tongue pole on the oblique tongue, be equipped with oblique tongue shifting block on the oblique tongue pole, be equipped with oblique tongue reset spring between oblique tongue shifting block and the casing, be equipped with the square hole inserted block in the casing, be equipped with the plectrum on the square hole inserted block, its technical essential does, it has the transmission piece to articulate in the casing, be equipped with on the plectrum and press the transmission piece other end and can drive the first shifting block of transmission piece pivoted, be equipped with the second shifting block on the plectrum, be equipped with the plectrum reset spring that the spring pressed the second shifting block in the casing, be equipped with oblique tongue amortization cover in the oblique tongue hole, the oblique tongue is established in oblique tongue amortization cover. The utility model discloses simple structure opens the dynamics little.

Description

Silent lock

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lock body on door leaf.

[ background of the invention ]

The lock body generally comprises a shell, wherein parts such as a dead bolt, an oblique bolt and the like are arranged in the shell, the parts are made of metal materials such as stainless steel and the like, the oblique bolt is frequently used, the oblique bolt can generate certain collision or impact force with the lock body after being frequently stretched, particularly, the oblique bolt resets under the action of elastic force, and the impact sound is larger when the elastic force is larger. In order to reduce noise, some silent structures are generally arranged on the existing lock body, but the structure in the lock body is complex, the cost is high, and the opening force of the latch bolt is large.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a silent lock with simple structure and small opening force.

In order to solve the problem, the utility model adopts the following technical scheme:

the utility model provides a silent lock, includes the casing, casing one side be equipped with interior bushing plate, interior bushing plate on be equipped with oblique tongue hole and square tongue hole, be equipped with in the casing can follow the flexible oblique tongue in oblique tongue hole and can follow the flexible square tongue in square tongue hole, the oblique tongue on be equipped with oblique tongue pole, oblique tongue pole on be equipped with oblique tongue shifting block, oblique tongue shifting block and casing between be equipped with oblique tongue reset spring, the casing in be equipped with the square hole inserted block, the square hole inserted block on be equipped with and drive pivoted plectrum, its characterized in that by it: the spring type spring lock is characterized in that a transmission block is hinged in the shell, one end of the transmission block is pressed against one side of the latch bolt shifting block and can drive the latch bolt to retract, a first shifting head which is pressed against the other end of the transmission block and can drive the transmission block to rotate is arranged on the shifting block, a second shifting head is arranged on the shifting block, a shifting block reset spring which can elastically press the second shifting head is arranged in the shell, a latch bolt silencing sleeve is arranged in a latch bolt hole, a square bolt frame is arranged above the square bolt, and a lock head shifting head which can shift the square bolt frame to stretch is arranged in the shell.

A silent lock as described above, characterized in that: the plectrum reset spring is a coil spring, and a top plate is arranged between the end part of the coil spring and the second plectrum.

A silent lock as described above, characterized in that: the square tongue hole is internally provided with a square tongue silencing sleeve, and the square tongue is arranged in the square tongue silencing sleeve.

A silent lock as described above, characterized in that: the casing in be equipped with the torsional spring, the casing in be equipped with the reference column, the one end of torsional spring press against the reference column on, the other end press against oblique inboard.

The beneficial effects of the utility model are that: the handle or the knob can be inserted into the square hole insertion block, when the handle or the knob rotates, the shifting piece is driven to rotate, the shifting piece drives the transmission block to rotate, the transmission block shifts the latch bolt shifting block to enable the latch bolt to retract, a certain lever effect is increased by arranging the transmission block, the latch bolt is enabled to be opened more easily, even if the spring force of the reset spring of the latch bolt is larger, the latch bolt is also easy to open, and the shifting piece reset spring is arranged in the shell, so that an additional reset mechanism is not needed to be arranged on the handle or the knob, the installation is convenient, the friction or collision sound between the latch bolt and the lock body can be reduced by arranging the latch bolt silencing sleeve, the silencing effect is achieved, meanwhile, the wear-resisting and self-lubricating effects can; the inclined tongue is elastically pressed by the torsion spring, so that the ejecting force of the inclined tongue is increased, the inclined tongue reset spring is prevented from losing efficacy after long-term use, and the service life of the lock body is prolonged.

[ description of the drawings ]

Fig. 1 is a perspective view of the present invention;

fig. 2 is an exploded view of the present invention.

[ detailed description ] embodiments

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 to 2, a silent lock comprises a housing 1, wherein a lining plate 11 is arranged on one side of the housing 1, an oblique tongue hole 12 and a square tongue hole 13 are arranged on the lining plate 11, an oblique tongue 2 capable of extending from the oblique tongue hole 12 and a square tongue 3 capable of extending from the square tongue hole 13 are arranged in the housing 1, an oblique tongue rod 21 is arranged on the oblique tongue 2, an oblique tongue shifting block 22 is arranged on the oblique tongue rod 21, the oblique tongue shifting block 22, the oblique tongue rod 21 and the oblique tongue 2 are linked, an oblique tongue return spring 4 is arranged between the oblique tongue shifting block 22 and the housing 1, a stop block is arranged in the housing 1, and the oblique tongue return spring 4 is arranged between the stop block and the oblique tongue shifting block 22 and can elastically press the oblique tongue to extend out. Be equipped with square hole inserted block 5 in the casing 1, be equipped with the jack on the square hole inserted block 5 for square strip etc. insert for installation handle or knob, be equipped with on the square hole inserted block 5 and drive pivoted plectrum 6 by it. Articulated in the casing 1 have a transmission piece 7, the one end of transmission piece 7 is pressed on oblique tongue shifting block 22 one side and can drive oblique tongue 2 and retract, be equipped with on the plectrum 6 and press on the transmission piece 7 other end and can drive the first shifting block 61 of transmission piece 7 pivoted, transmission piece 7 has two shift forks, a shift fork is pressed on oblique tongue shifting block 22 one side, another shift fork is pressed on first shifting block 61, two shift forks rotate around the 7 hinge shafts of transmission piece, be equipped with second shifting block 62 on the plectrum 6, first shifting block 61 and second shifting block 62 rotate around the plectrum 6 rotation center. The shell 1 is internally provided with a shifting piece reset spring 8 for elastically pressing the second shifting block 62, the oblique tongue hole 12 is internally provided with an oblique tongue silencing sleeve 14, the oblique tongue silencing sleeve 14 extends into the shell 1, the oblique tongue 2 is arranged in the oblique tongue silencing sleeve 14, the oblique tongue silencing sleeve 1 can be made of materials such as rubber sleeves, plastic sleeves and POM (polyoxymethylene) plastic sleeves and has the effects of silencing, silencing and wear resistance and self lubrication, a square tongue frame 31 is arranged above the square tongue 3, the shell 1 is internally provided with a lock shifting block 9 capable of shifting the square tongue frame 31 to stretch, the lock shifting block 9 is driven by a key, the square tongue hole 13 is internally provided with a square tongue silencing sleeve 16, and the square tongue 3 is arranged in the square tongue silencing sleeve 16. The plectrum return spring 8 is a coil spring, a top plate 15 is arranged between the end of the coil spring and the second shifting block 62, the end of the coil spring has a certain hook shape, the second shifting block 62 also has a certain hook shape, and the top plate 15 is clamped between the two hook shapes and pressed by the elastic force of the coil spring.

Due to the arrangement of the oblique tongue silencing sleeve 14, parameter noise cannot be easily generated, in order to increase the popping force of the oblique tongue, a torsion spring 17 is arranged in the shell 1, a positioning column 18 is arranged in the shell 1, one end of the torsion spring 17 is pressed against the positioning column 18, the other end of the torsion spring 17 is pressed against the inner side of the oblique tongue 2, the inner side of the torsion spring refers to one side facing the inside of the shell 1, and the torsion spring 17 can pop the oblique tongue 2 out of the shell 1.

Claims (4)

1. The utility model provides a silent lock, includes casing (1), casing (1) one side be equipped with interior bushing plate (11), interior bushing plate (11) on be equipped with oblique tongue hole (12) and square tongue hole (13), casing (1) in be equipped with can follow oblique tongue hole (12) flexible oblique tongue (2) and can follow square tongue hole (13) flexible square tongue (3), oblique tongue (2) on be equipped with oblique tongue pole (21), oblique tongue pole (21) on be equipped with oblique tongue shifting block (22), oblique tongue shifting block (22) and casing (1) between be equipped with oblique tongue reset spring (4), casing (1) in be equipped with square hole inserted block (5), square hole inserted block (5) on be equipped with and drive pivoted plectrum (6) by it, its characterized in that: the improved bolt driving device is characterized in that a transmission block (7) is hinged in the shell (1), one end of the transmission block (7) is pressed against one side of the latch driving block (22) and can drive the latch bolt (2) to retract, the shifting piece (6) is provided with a first shifting head (61) which is pressed against the other end of the transmission block (7) and can drive the transmission block (7) to rotate, the shifting piece (6) is provided with a second shifting head (62), the shell (1) is internally provided with a shifting piece resetting spring (8) which can elastically press the second shifting head (62), a latch bolt silencing sleeve (14) is arranged in the latch bolt hole (12), the latch bolt (2) is arranged in the latch bolt silencing sleeve (14), a square bolt frame (31) is arranged above the square bolt (3), and the shell (1) is internally provided with a lock head shifting head (9) which can shift the square bolt frame (31) to stretch.

2. A silent lock, as claimed in claim 1, wherein: the plectrum reset spring (8) is a coil spring, and a top plate (15) is arranged between the end part of the coil spring and the second shifting head (62).

3. A silent lock, as claimed in claim 1, wherein: the square tongue hole (13) is internally provided with a square tongue silencing sleeve (16), and the square tongue (3) is arranged in the square tongue silencing sleeve (16).

4. A silent lock, as claimed in claim 1, wherein: the novel spring bolt is characterized in that a torsion spring (17) is arranged in the shell (1), a positioning column (18) is arranged in the shell (1), one end of the torsion spring (17) is pressed against the positioning column (18), and the other end of the torsion spring is pressed against the inner side of the oblique bolt (2).

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