CN112681896A

CN112681896A - Lock body structure

Info

Publication number: CN112681896A
Application number: CN202011580414.8A
Authority: CN
Inventors: 黄东涛; 肖骞; 彭件发
Original assignee: Guangdong Mingmen Locks Industry Co Ltd
Current assignee: Guangdong Mingmen Locks Industry Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-20

Abstract

The invention discloses a lock body structure, comprising: the lock body shell and the lining plate are arranged on the side part of the lock body shell and are provided with lock tongue holes; the limiting groove component is arranged on one side, close to the lock tongue hole, in the lock body shell, and the opening end of the limiting groove component is opposite to the lock tongue hole; the turnover tongue is arranged in the opening end of the limiting groove component and can move along the length direction of the limiting groove, a limiting convex block is arranged on the side part of the turnover tongue, a clamping groove is arranged at the rear end of the turnover tongue, and the front end of the turnover tongue penetrates through a lock tongue hole of the lining plate; and the positioning spring is arranged in the limiting groove member, one end of the positioning spring is connected to the bottom surface of the limiting groove member, and the other end of the positioning spring exerts elastic force on the bottom surface of the clamping groove of the turnover tongue. Use above-mentioned lock body structure in the tool to lock, can make this tool to lock have the characteristics that the unblock stroke is short, required dynamics is little, more conveniently unblank.

Description

Lock body structure

Technical Field

The invention relates to the technical field of locks, in particular to a lock body structure.

Background

Most of the existing lock tongues are of an inclined tongue type which can only extend and retract, a common inclined tongue type lock tongue can quickly rebound to automatically lock a door under the action of elastic force when the door is closed, but the inclined tongue type lock tongue has a long stroke and large opening force when the door is unlocked. When the latch bolt type lock is arranged in a wet place such as a bathroom, water is easily stained on hands, the hands and the lock handle are easy to slide when the lock is unlocked, the lock is not easy to open, and the defects of long unlocking stroke and large unlocking force of the latch bolt are more obvious.

Disclosure of Invention

The present invention is made to solve the above-mentioned technical problems, and an object of the present invention is to provide a lock body structure that can lock quickly and has the advantages of short unlocking stroke and small required force.

In order to achieve the above object, the present invention provides a lock body structure including: the lock body shell 1 and the lining plate 13 are arranged on the side part of the lock body shell 1 and are provided with lock bolt holes 2; the limiting groove component 4 is arranged on one side, close to the lock tongue hole 2, in the lock body shell 1, and the opening end of the limiting groove component is opposite to the lock tongue hole 2; the turnover tongue 3 is arranged in the opening end of the limiting groove component 4 and can move along the length direction of the limiting groove 4, a limiting convex block 36 is arranged on the side part of the turnover tongue 3, a clamping groove 35 is arranged at the rear end of the turnover tongue 3, and the front end of the turnover tongue 3 penetrates through the bolt hole 2 of the lining plate 13; and a positioning spring 5 disposed in the limit groove member 4, one end of which is connected to the bottom surface of the limit groove member 4, and the other end of which applies an elastic force to the bottom surface of the catching groove 35 of the turnover tongue 3.

Preferably, a limit catch plate 37 with a length larger than the width of the turnover tongue 3 is arranged on the side wall of the turnover tongue 3 on one side of the catch groove 35; a side hole 41 is arranged on one side wall of the limit groove member 4; a bolt locking block 6 is further arranged in the lock body shell 1, the bolt locking block 6 is rotatably arranged on a pin shaft 14 in the lock body shell 1, and a clamping plate 61 arranged at one end of the bolt locking block 6 penetrates through the side hole 41 of the limiting groove member 4, extends into the limiting groove member 4 and abuts against the limiting clamping plate 37.

Preferably, still include the location slat 7 of rectangular shape, location slat 7 passes the fluting that sets up on the spacing groove component 4 bottom surface and span and establish on spacing groove component 4 the one end of stretching into of location slat 7 spacing groove component 4 is equipped with can the butt in the locating plate of the draw-in groove 35 bottom surface of upset tongue 3, positioning spring 5 connects on the locating plate.

Preferably, the bottom surface of the clamping groove 35 close to the inner wall of the lock body shell 1 is an arc surface.

As can be seen from the above description and practice, the lock body structure of the present invention has the following advantages:

1. the turnover tongue of the lock body structure can horizontally move under the action of the door frame when the door is closed, can simultaneously rotate and horizontally move under the action of the door frame when the door is opened, does not need to independently drive the turnover tongue to contract towards the inside of the lock body shell, reduces the unlocking stroke, and can open the door without large external force.

2. The lock body structure can lock the turnover tongue and limit the rotation movement of the turnover tongue by arranging the limiting clamping plate and the lock tongue locking block, thereby reversely locking the door. When unlocking, the rotation function of the turnover tongue can be recovered only by moving the lock tongue locking block out of the limiting groove component, so that the door is opened.

3. According to the invention, through the rotatable and telescopic turnover tongue and the lock tongue locking block capable of limiting the rotation of the turnover tongue, the lock can be quickly locked, meanwhile, the formation of unlocking is reduced, and large external force is not required.

Drawings

Fig. 1 is a schematic view of the internal structure of a lock body structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of a flip tongue according to an embodiment of the present invention from a first perspective.

Fig. 3 is a schematic view of a flip tongue according to an embodiment of the present invention from a second viewing angle.

Fig. 4 is a schematic view of a flip tongue according to an embodiment of the present invention from a third perspective.

Fig. 5 is an exploded view of a lock body structure according to an embodiment of the present invention.

Figure 6 is a schematic view of the lock body structure according to one embodiment of the present invention after the flip tongue is flipped to the inner side of the door.

The reference numbers in the figures are:

1. the lock comprises a lock body shell 11, a first shell 12, a second shell 13, a lining plate 14 and a pin shaft;

2. a lock tongue hole;

3. the turning tongue 31, the front end face 32, the rear end face 33, the first side face 34, the second side face 35, the clamping groove 36, the limiting bump 37 and the limiting clamping plate;

4. a limit groove member 41, a side hole;

5. a positioning spring;

6. a bolt locking block 61 and a clamping plate;

7. and positioning the lath.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Figure 1 is a schematic diagram of the internal structure of a lock body structure related to one embodiment of the invention, and shows the connection relationship of the lock body structure in the lock body shell in the embodiment. Fig. 2 is a schematic view of a flip tongue according to an embodiment of the present invention, showing an upper end surface, a rear end surface and a second side surface of the flip tongue, from a first perspective. Fig. 3 is a schematic view of a flip tongue according to an embodiment of the present invention, showing an upper end surface, a front end surface and a first side surface of the flip tongue, from a second perspective. Fig. 4 is a schematic view of the flip tongue according to an embodiment of the present invention, showing the upper end surface, the rear end surface and the second side surface of the flip tongue, from a third perspective. Figure 5 is an exploded view of the lock body structure according to an embodiment of the present invention, showing the details and connections of the various components that make up the lock body structure. Figure 6 is a schematic view of the lock body structure according to one embodiment of the present invention after the flip tongue is flipped to the inner side of the door.

Referring to fig. 1 to 6, the lock body structure in this embodiment includes a lock body housing 1, and a lining plate 13 installed at a side portion of the lock body housing 1, wherein a bolt hole 2 is formed in the lining plate 13. In addition, still including setting up the convertible spring bolt structure in the one side of being close to spring bolt hole 2 of lock body shell 1, convertible spring bolt structure has a upset tongue 3, and the front end of upset tongue 3 can stretch out to the outside of lock body shell 1 via spring bolt hole 2 for thereby with the lockhole cooperation in the door frame with the door locking. Specifically, the lock body shell 1 is composed of a first shell 11, a second shell 12 and a lining plate 13, the first shell 11 and the second shell 12 are buckled to form a hollow shell, the lining plate 13 is arranged at the opening of the side edge of the shell, and the lining plate 13 is provided with a lock tongue hole 2 opposite to the turnover tongue 3 for the front end of the turnover tongue 3 to extend out.

A U-shaped limiting groove member 4 is further arranged in the lock body shell 1, one end of the opening of the U-shaped limiting groove member faces the bolt hole 2, and the limiting groove member 4, the first shell 11 and the second shell 12 form a strip-shaped movable space. The turnover tongue 3 is disposed in the space and is movable in the longitudinal direction of the stopper groove member 4, i.e., in the y-axis direction in the figure.

Referring to fig. 2 to 6, the turning tongue 3 is a cylinder with a parallelogram cross section, and the front and rear ends thereof are inclined planes with the same direction, that is, the front end face 31 is parallel to the rear end face 32, wherein the front end face 31 is an end face extending out of the lock tongue hole 2, and the rear end face 32 is an end face located in the limiting groove member 4. In addition, the first side 33 and the second side 34 are also two parallel planes, wherein the first side 33 refers to the side where the turnover tongue 3 contacts with the inner side wall of the first housing 11, and the second side 34 refers to the side where the turnover tongue 3 contacts with the inner side wall of the second housing 12. The first side 33 is in sliding contact with the inner side wall of the first housing 11, and the second side 34 is in sliding contact with the inner side wall of the second housing 12. In addition, the intersection of the front end surface 31 and the first side surface 33 is set as a cambered surface, and the intersection of the rear end surface 32 and the second side surface 34 is set as a cambered surface, so that the friction force between the turnover tongue 3 and the inner wall of the lock body shell 1 during turnover is reduced, and the turnover is smoother.

A locking groove 35 is formed at the rear end of the flip tongue 3 along the transverse direction (i.e., the x-axis direction in the figure), and the locking groove 35 penetrates through the first side surface 33 and the rear end surface 32. A positioning spring 5 is arranged between the clamping groove 35 and the bottom surface of the limiting groove component 4, and the positioning spring 5 is used for enabling the front end of the turnover tongue 3 to extend out of the lock tongue hole 2 by utilizing the self elasticity. In this embodiment, the rear end of the positioning spring 5 is fixedly connected with, e.g., inserted into, the bottom surface of the limiting groove member 4, and the front end of the positioning spring 5 is disposed in the engaging groove 35 to apply an elastic force to the bottom surface of the engaging groove 35.

The side part of the turnover tongue 3 is also provided with a limit bump 36 for controlling the length of the turnover tongue 3 extending out of the lock tongue hole 2, the limit bump 36 is a platform with a convex end face, and the distance between the outermost sides of the upper limit bump 36 and the outermost sides of the lower limit bump 36 are greater than the height of the lock tongue hole 2. The function of the spring is to make only the front part of the turnover tongue 3 extend out of the bolt hole 2 under the elastic force of the positioning spring 5. In addition, the distance between the outermost sides of the upper and lower limit projections 36 is slightly smaller than the distance between the upper and lower inner walls of the limit groove member 4, and the movement of the turnover tongue 3 in the z-axis direction is limited.

When the door is closed, the front end face 31 of the turnover tongue 3 positioned at the outer end of the bolt hole 2 is extruded by the door frame, so that the turnover tongue 3 moves towards the inside of the limiting groove component 4 along the negative direction of the y axis, the positioning spring 5 is compressed at the moment, when the door is closed, the turnover tongue 3 can move towards the outside of the bolt hole 2 along the length direction of the limiting groove component 4 under the resilience force of the positioning spring 5 until the door enters the lock hole in the door frame, and the door is closed at the moment. When the door is opened, the door is pushed to the inner side of the door, namely, a force along the positive direction of the x axis in the drawing is applied to the door, at the moment, the second side surface 34 of the turnover tongue 3 is subjected to an acting force of the door frame along the negative direction of the x axis, so that the turnover tongue 3 rotates along the direction of the z axis in the drawing until the rear end surface 32 is parallel to the yz plane (as shown in figure 6), and then the second side surface 34 of the turnover tongue 3 is extruded by the door frame, so that the turnover tongue 3 moves towards the limiting groove component 4 along the negative direction of the y axis until the front end of the turnover tongue 3 enters the limiting groove component 4, and at the moment, the door can be opened.

In order to make the lock body structure have the locking function, a limit catch plate 37 with the length larger than the width of the turnover tongue 3 is arranged on the side wall of the turnover tongue 3. Accordingly, a side hole 41 is opened on the side wall of the stopper groove member 4. As shown in fig. 5, in this embodiment, the side hole 41 is a long hole. A bolt locking block 6 is arranged in the lock body shell 1, one end of the bolt locking block 6 is hinged on a pin shaft 14 in the lock body shell 1, and the other end of the bolt locking block 6 is arranged in the side hole 41 in a penetrating way. Specifically, one end of the latch locking block 6 close to the side hole 41 is provided with a catch plate 61 having a size slightly smaller than the side hole 41, and by rotating the latch locking block 6 up and down, the catch plate 61 can enter the limiting groove member 4 through the side hole 41 or move out of the limiting groove member 4. When the catch plate 61 enters the retaining groove member 4, the catch plate 61 prevents the lateral movement of the retaining catch plate 37, i.e., prevents the movement of the retaining catch plate 37 in the x-axis direction, and accordingly, the rotation of the flip tongue 3 is limited, i.e., the lock body structure is locked. At this time, if the door is in the closed state, it is unlocked. It should be noted that the height of the card board 61 entering the limiting groove member 4 does not exceed the height of the limiting card board 37, so that the card board 61 only limits the turning motion of the turning tongue 3 in the transverse direction, and does not limit the movement of the turning tongue 3 in the y-axis direction.

In this embodiment, the height of the restraining catch plate 37 and the restraining projection 36 is the same to increase the stability of the flip tongue.

In addition, in order to enhance the stability of the positioning spring 5, a positioning strip plate 7 is arranged in the limiting groove member 4 along the length direction, the positioning strip plate 7 passes through a slot arranged on the bottom surface of the limiting groove member 4 and stretches across the limiting groove member 4, a positioning plate capable of abutting against the bottom surface of the clamping groove 35 of the turnover tongue 3 is arranged at one end of the positioning strip plate 7 extending into the limiting groove member 4, and the positioning spring 5 is connected to the positioning plate.

In addition, in order to make the turning tongue 3 smoother during turning, the bottom surface of the clamping groove 35 close to the inner wall of the lock body shell 1 is a cambered surface. Specifically, the intersection of the rear end surface 32 of the flip tongue 3 and the bottom surface of the slot 35 is an arc surface, and the intersection of the first side surface 33 of the flip tongue 3 and the bottom surface of the slot 35 is an arc surface.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A lock body structure, comprising:

a lock body shell (1),

the lining plate (13) is arranged on the side part of the lock body shell (1) and is provided with a lock tongue hole (2);

the limiting groove component (4) is arranged on one side, close to the lock tongue hole (2), in the lock body shell (1), and the opening end of the limiting groove component is opposite to the lock tongue hole (2);

the turnover tongue (3) is arranged in the opening end of the limiting groove component (4) and can move along the length direction of the limiting groove (4), a limiting convex block (36) is arranged on the side part of the turnover tongue (3), a clamping groove (35) is arranged at the rear end of the turnover tongue (3), and the front end of the turnover tongue (3) penetrates through a tongue locking hole (2) of the lining plate (13); and

and the positioning spring (5) is arranged in the limiting groove component (4), one end of the positioning spring is connected to the bottom surface of the limiting groove component (4), and the other end of the positioning spring exerts elastic force on the bottom surface of the clamping groove (35) of the turnover tongue (3).

2. A lock body structure according to claim 1,

a limit clamping plate (37) with the length larger than the width of the turnover tongue (3) is arranged on the side wall of one side of the clamping groove (35) of the turnover tongue (3);

a side hole (41) is arranged on one side wall of the limiting groove member (4);

still be provided with spring bolt locking block (6) in lock body shell (1), spring bolt locking block (6) rotatably install on round pin axle (14) in lock body shell (1) cardboard (61) that the one end of spring bolt locking block (6) set up pass side opening (41) and stretch into of spacing groove component (4) in, and the butt is in on spacing cardboard (37).

3. A lock body structure according to claim 1, further comprising an elongated positioning strip plate (7), wherein the positioning strip plate (7) crosses over the limiting groove member (4) through the slot provided on the bottom surface of the limiting groove member (4), a positioning plate capable of abutting against the bottom surface of the slot (35) of the turning tongue (3) is provided on one end of the positioning strip plate (7) extending into the limiting groove member (4), and the positioning spring (5) is connected to the positioning plate.

4. A lock body structure according to claim 1, characterized in that the bottom surface of the locking groove (35) near the inner wall of the lock body housing (1) is a cambered surface.