CN107165501B

CN107165501B - Spring bolt structure

Info

Publication number: CN107165501B
Application number: CN201710411760.5A
Authority: CN
Inventors: 宋庆华; 杜可伟; 卢长志
Original assignee: Guangdong Heron Intelligent Technology Co ltd
Current assignee: Guangdong Heron Intelligent Technology Co ltd
Priority date: 2017-06-05
Filing date: 2017-06-05
Publication date: 2023-09-15
Anticipated expiration: 2037-06-05
Also published as: CN107165501A

Abstract

The invention discloses a lock tongue structure, which is characterized in that: the lock comprises a lock tongue, a lining plate, an opening and a lock body lower cover, wherein the lock tongue is arranged in the lock body, the opening is formed in the lining plate, the lock tongue comprises an inclined tongue and a friction tongue arranged in the center of the inclined tongue, the friction tongue comprises a sharp mouth part and a friction tongue gear step, and the inclined tongue and the sharp mouth part of the friction tongue extend outwards through the opening; the inclined tongue is connected with the friction tongue in a relatively rotatable mode, and a friction tongue cavity is arranged in the inclined tongue, so that a gear step of the friction tongue extends out of the lining plate to pass through the opening without barriers. The invention avoids the disassembly of the lockset on one hand, and simplifies the reversing procedure and steps; on the other hand, the aging and failure of parts in the lock body are avoided.

Description

Spring bolt structure

Technical Field

The invention relates to a lock tongue structure

Background

The door opening modes of the existing door are as follows: the four modes relate to the adjustment of the direction of the inclined tongue component, so that the inclined tongue component is usually subjected to the direction adjustment in order to meet the field installation requirement. The usual ways currently mainly include:

the lock body lining plate is disassembled, and then the inclined tongue component is rotated to achieve the purpose of reversing, so that the method is complex in operation, inconvenient and easy to damage the lock;

and the other is to change the direction of the lock tongue in the lock body without disassembling the lock body. Because the friction tongue card can't pop out the spring bolt in the lock body, consequently need set up a great hole site in order to solve the problem that the internal switching-over space of spring bolt lock is narrow in the lock body panel department of spring bolt below, but because the hole site is great, can make a large amount of dust get into from this hole site, because the electronic lock is very high to the interior part precision requirement, and the part that lets the lock body inside ages for a long time easily, perhaps makes it unable normal work, reduces the life of tool to lock.

Disclosure of Invention

The invention solves the technical problem of providing a lock tongue structure which is suitable for quick and simple reversing of a lock tongue in the field of door locks.

In order to achieve the above object, the present invention discloses a latch bolt structure, which is characterized in that: the lock comprises a lock tongue, a lining plate, an opening and a lock body lower cover, wherein the lock tongue is arranged in the lock body, the opening is formed in the lining plate, the lock tongue comprises an inclined tongue and a friction tongue arranged in the center of the inclined tongue, the friction tongue comprises a front section part and a friction tongue gear step, and the inclined tongue and the front section part of the friction tongue penetrate through the opening and extend outwards from the lining plate;

the inclined tongue is connected with the friction tongue in a relatively rotatable mode, and a friction tongue cavity is arranged in the inclined tongue, so that a gear step of the friction tongue extends out of the lining plate to pass through the opening without barriers.

Preferably, the oblique tongue and the friction tongue are rotatably connected through a connecting piece.

Preferably, the friction tongue cavity is provided with an inclined plane, and when the friction tongue gear step rotates to be close to the inclined plane and the friction tongue tip mouth part is parallel to the inclined plane, the height of the friction tongue gear step is smaller than the height of the lining plate opening.

Preferably, the lock tongue structure further comprises a latch reversing block, wherein the latch reversing block comprises a latch reversing block spring guide post, and a latch reversing block spring sleeved on the latch reversing block spring guide post.

Preferably, the inclined tongue reversing block further comprises an inclined tongue reversing block side wall and an inclined tongue reversing block poking piece positioning boss.

Preferably, the lock tongue further comprises a latch tongue pull rod connected with the latch tongue, a latch tongue gasket sleeved on the latch tongue pull rod, a pull rod positioning plate positioned at the tail end of the latch tongue pull rod, a lock tongue spring positioned between the latch tongue and the latch tongue gasket and sleeved on the latch tongue pull rod, a latch tongue poking piece capable of rotating along a shaft and a positioning plate; the inclined tongue gasket is fixedly connected with the positioning plate.

Preferably, the inclined tongue gasket is fixedly connected with the positioning plate in a clamping way.

Preferably, a chute locating surface is further arranged on one side of the locating plate, and the inclined tongue reversing block is clamped on the chute locating surface and can move left and right on the chute locating surface along with the expansion and contraction of the inclined tongue reversing block spring.

Preferably, the inclined tongue reversing block spring guide post penetrates through a through hole of a lock body lower cover arranged on the lock body.

Preferably, the connecting piece is a cotter pin or a cylindrical pin.

The invention has the beneficial effects that: through the arrangement of the friction tongue cavity and the inclined plane, the inclined tongue and the friction tongue can be reversed outside the lock body, so that the lock is prevented from being disassembled, and the reversing procedure and steps are simplified; on the other hand, the problem that dust is accumulated easily due to the fact that a larger hole site has to be formed in the lower cover of the lock body when the inside of the lock tongue is reversed due to the narrow space is avoided, and the parts in the lock body are aged and failed. Moreover, due to the arrangement of the inclined tongue poking piece, the inclined tongue positioning plate and the like, the stability of the lock tongue before and after the steering is ensured, and the lock tongue is not easy to pop out of the lock body due to steering.

Drawings

FIG. 1 is a perspective exploded view of one embodiment of a latch bolt construction of the present invention;

FIG. 2 is a front view of an embodiment of a latch tongue construction according to the present invention in a normal use condition;

FIG. 3 is a cross-sectional view taken along the plane A-A of one embodiment of a latch tongue construction according to the present invention;

FIG. 4 is a front view of an embodiment of the invention showing the spring bolt in an out-of-line condition;

FIG. 5 is a cross-sectional view of the spring bolt in an embodiment of the invention in the out-of-line condition A-A;

FIG. 6 is a perspective view of a latch bolt (friction-free latch) of one embodiment of the latch bolt structure of the present invention;

FIG. 7 is a perspective view of a latch tongue configuration embodiment of the present invention in normal use;

FIG. 8 is a perspective view showing the state of the lock tongue in the embodiment of the invention in which the lock tongue is ejected out of the lining plate;

FIG. 9 is a perspective view of a tongue reversing view of an embodiment of the tongue construction of the present invention;

FIG. 10 is a rear perspective view of a latch bolt according to one embodiment of the present invention;

fig. 11 is a perspective view of a tongue reversing block of one embodiment of the tongue construction of the present invention.

Detailed Description

In the description of the present invention, the terms "upper", "lower", "front" and "rear" and the like refer to the orientation or positional relationship based on that shown in the drawings, for convenience of description of the present invention only and not to require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The following describes the embodiments of the present invention further with reference to the drawings.

As shown in fig. 1-11, one embodiment of a deadbolt structure of the present invention is shown. The spring bolt structure comprises the following structures:

1-lock tongue, 11-oblique tongue, 12-friction tongue, 121-friction tongue cavity, 1211-inclined plane, 122-friction tongue gear step, 13-oblique tongue pull rod, 14-oblique tongue gasket, 15-connecting piece, 16-pull rod positioning plate, 17-lock tongue spring, 18-oblique tongue pulling piece and 19-positioning plate;

the device comprises a 2-inclined tongue reversing block, a 21-inclined tongue reversing block spring guide column, a 22-inclined tongue reversing block spring, a 23-inclined tongue reversing block side wall and a 24-inclined tongue reversing block shifting piece positioning boss;

31-positioning surfaces of sliding grooves, 32-through holes of a lower cover of the lock body and 33-holes;

4-lining board, 5-lock body lower cover.

In combination with the above, the invention provides a lock tongue structure which comprises a lock tongue 1, an inclined tongue reversing block 2, a lining plate 4 and a lock body lower cover 5.

The lock tongue 1 comprises a lock tongue 11, a friction tongue 12 arranged in the center of the lock tongue 11, a lock tongue pull rod 13 connected with the lock tongue 11, and a lock tongue gasket 14 sleeved on the lock tongue pull rod 13, wherein the lock tongue pull rod and the lock tongue gasket 14 can move relatively. The connecting piece 15 for connecting the inclined tongue 11 and the friction tongue 12, the pull rod positioning plate 16 positioned at the tail end of the inclined tongue pull rod 13, the lock tongue spring 17 positioned between the inclined tongue 11 and the inclined tongue gasket 14 and sleeved on the inclined tongue pull rod 13, the inclined tongue poking piece 18 and the positioning plate 19. The friction tongue is arranged to prevent the door closing sound from being too loud when the door is closed. The friction tongue 12 can rotate up and down by a certain angle with the connecting piece 15 as an axis. Further, a friction tongue cavity 121 is provided in the inclined tongue 11, and the friction tongue 12 can axially move in the friction tongue cavity with the connecting piece 15 as an axis. An inclined surface 1211 is provided in the friction tongue cavity 121. In addition, the latch pulling piece 18 can rotate along the shaft 181, the shaft 181 extends outwards to the outside of the lock body lower cover 5, and the rotation shaft 181 can control the rotation of the latch pulling piece 18 under the condition that a user does not open the lock body. In addition, the inclined tongue gasket 14 is fixedly clamped with the positioning plate 19.

The inclined tongue reversing block 2 comprises an inclined tongue reversing block spring guide column 21, an inclined tongue reversing block spring 22 sleeved on the inclined tongue reversing block spring guide column 21, an inclined tongue reversing block side wall 23 and an inclined tongue reversing block shifting piece positioning boss 24.

The positioning plate 19 is also provided with a chute positioning surface 31 at one side, and the inclined tongue reversing block 2 is clamped on the chute positioning surface 31 and can move left and right on the chute positioning surface 31 along with the expansion and contraction of the inclined tongue reversing block spring 22; the latch reversing block spring guide post 21 passes through the lock body lower cover through hole 32. Further, the lining board 4 is also provided with an opening 33, and the inclined tongue 11 and the tip part of the friction tongue 12 extend outwards from the lining board 4 through the opening 33, but the friction tongue gear step 122 of the friction tongue 12 is clung to the side wall of the lining board 4. The pointed portion of the friction tongue, i.e., the portion of the friction tongue 12 that removes the friction tongue gear step 122.

Specifically, the working principle of this embodiment is:

when the whole of the inclined tongue 11 and the friction tongue 12 of the lock tongue 1 is not ejected from the lining board 4, the state is as follows: the pull rod positioning plate 16 is tightly attached to the side wall of the inclined tongue pulling piece 18 under the action of the spring 17 of the lock tongue, and the other side of the inclined tongue pulling piece 18 is tightly attached to the side wall 23 of the inclined tongue reversing block. The inclined tongue reversing block 2 is acted by the inclined tongue reversing block spring 22 and is always stuck to the inner side of the chute positioning surface 31, so that the pull rod positioning plate 16 is prevented from losing the limiting action of the inclined tongue poking piece 18 and the inclined tongue reversing block side wall 23 by random movement of the inclined tongue reversing block 2, and the inclined tongue 11 and the friction tongue 12 are ejected out of the lining plate 4. At the same time, the friction tongue gear step 122 is tightly attached to the side wall of the lining board 4, and further prevents the friction tongue 12 from ejecting out of the lining board 4.

When the inclined tongue 11 and the friction tongue 12 are reversed, the inclined tongue reversing block spring guide post 21 of the inclined tongue reversing block 2 is pulled outwards by hand, so that the inclined tongue reversing block 2 moves along the outward direction of the chute, the inclined tongue reversing block spring 22 is compressed under pressure, at the moment, the inclined tongue 11 and the friction tongue can be ejected out of the lock body under the action of the spring force of the spring bolt spring 17 due to the fact that the side wall 23 of the inclined tongue reversing block is separated from the inclined tongue pulling piece 18, and meanwhile, the pull rod positioning plate 16 can push the inclined tongue pulling piece 18 to move forwards continuously under the action of the spring force of the spring bolt spring 17, so that the inclined tongue 11 and the friction tongue 12 are ejected out of the lining plate 4. Specifically, the friction tongue cavity 121 includes a slope 1211, when the friction tongue 12 is pushed to move outside the lining board 4, the friction tongue 12 moves with the connecting piece 15 as an axial slope 1211, the friction tongue cavity 121 provides enough space for the friction tongue 12 to fall to the slope 1211, and when the friction tongue 12 rotates to cling to the slope 1211, the gear step 122 of the friction tongue 12 is located at a height just lower than the height of the opening 33, so that the friction tongue 12 can pass through the opening 33 without obstruction.

When the tongues 11 and the friction tongues 12 are fully ejected out of the backing plate 4, a reversing of the tongues 11 and the friction tongues 12 is achieved. In this state: the pull rod positioning plate 16 can not move forward continuously due to the double blocking of the pull rod positioning plate 19 and the pull plate positioning boss 24 of the pull block of the pull tongue reversing block after the pull plate 18 of the pull tongue is shifted for a certain angle under the action of the spring 17 of the lock tongue. The inclined tongue 11 and the friction tongue 12 can be rotated 180 degrees to realize reversing.

When the inclined tongue 11 and the friction tongue 12 finish the direction change, the rotation shaft 181 enables the inclined tongue poking piece 18 to push the pull rod positioning plate 16 to move backwards, and when the backward moving distance is larger than the inclined tongue reversing block side wall 23, the inclined tongue reversing block 2 can push the inclined tongue reversing block 2 forwards under the action of the inclined tongue reversing block spring 22 to block the pull rod positioning plate 16 again, so that the inclined tongue 11 and the friction tongue 12 are prevented from being ejected out of the lining plate.

Furthermore, the connecting member 15 may be a cotter pin or a cylindrical pin.

Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.

Claims

1. A latch bolt structure, its characterized in that: the lock comprises a lock tongue, a lining plate, an opening and a lock body lower cover, wherein the lock tongue is arranged in the lock body, the opening is formed in the lining plate, the lock tongue comprises an inclined tongue and a friction tongue arranged in the center of the inclined tongue, the friction tongue comprises a sharp mouth part and a friction tongue gear step, and the inclined tongue and the sharp mouth part of the friction tongue extend outwards through the opening;

wherein the inclined tongue and the friction tongue are rotationally connected through a connecting piece; the inclined tongue is internally provided with a friction tongue cavity, the friction tongue cavity is provided with an inclined plane, and when the friction tongue gear step rotates to be close to the inclined plane and the friction tongue tip mouth part is parallel to the inclined plane, the height dimension of the friction tongue gear step is smaller than the height of the lining plate opening, so that the friction tongue gear step extends out of the lining plate and passes through the opening without barriers.

2. The deadbolt structure of claim 1, wherein: the lock tongue structure also comprises a bevel tongue reversing block, wherein the bevel tongue reversing block comprises a bevel tongue reversing block spring guide post, and a bevel tongue reversing block spring sleeved on the bevel tongue reversing block spring guide post.

3. The deadbolt structure of claim 2, wherein: the inclined tongue reversing block further comprises an inclined tongue reversing block side wall and an inclined tongue reversing block shifting piece positioning boss.

4. The deadbolt structure of claim 2, wherein: the lock tongue also comprises a bevel tongue pull rod connected with the bevel tongue, a bevel tongue gasket sleeved on the bevel tongue pull rod, a pull rod positioning plate positioned at the tail end of the bevel tongue pull rod, a lock tongue spring positioned between the bevel tongue and the bevel tongue gasket and sleeved on the bevel tongue pull rod, a bevel tongue poking piece capable of rotating along an axis and a positioning plate; the inclined tongue gasket is fixedly connected with the positioning plate.

5. The deadbolt structure of claim 4, wherein: the inclined tongue gasket is fixedly connected with the positioning plate in a clamping way.

6. The deadbolt structure of claim 4, wherein: the positioning plate is characterized in that one side of the positioning plate is also provided with a chute positioning surface, and the inclined tongue reversing block is clamped on the chute positioning surface and can move left and right on the chute positioning surface along with the expansion and contraction of the inclined tongue reversing block spring.

7. The deadbolt structure of claim 2, wherein: the inclined tongue reversing block spring guide post penetrates through a through hole of a lock body lower cover arranged on the lock body.

8. The deadbolt structure of claim 1, wherein: the connecting piece is a cotter pin or a cylindrical pin.