CN213510068U

CN213510068U - Simple door lock

Info

Publication number: CN213510068U
Application number: CN202021852117.XU
Authority: CN
Inventors: 胡娟
Original assignee: Zhejiang Jiacheng Baby Products Co ltd
Current assignee: Zhejiang Jiacheng Baby Products Co ltd
Priority date: 2020-08-29
Filing date: 2020-08-29
Publication date: 2021-06-22
Anticipated expiration: 2030-08-29

Abstract

The utility model belongs to the technical field of safety lock device, concretely relates to simple switch lock, including the base that is used for fixing on one side of door, rotate the casing that sets up on the base, still include the release button of removal installation on the casing, set up the reset spring between base and release button, the lockhole has been seted up on the base, release button inner is equipped with the lockpin that can stretch into in the lockhole, and lockpin tip shaping has the spacing boss of butt in the lockhole inboard to restrict the lockpin and rotate in the lockhole; one side of the shell extends outwards to exceed the edge of the base to form a handle, and when the shell is locked, the handle is positioned on the outer side of the door to prevent the door from being opened. The utility model can prevent the door from opening only by fixing the base beside the door and rotating the handle to the position outside the door; when the oven door needs to be opened, the handle is rotated out to leave the oven door by only pressing the unlocking button, so that the door can be opened, the structure is simple, and the operation is very convenient.

Description

Simple door lock

Technical Field

The utility model belongs to the technical field of the safety lock device, concretely relates to simple and easy switch lock.

Background

The oven, microwave oven, refrigerator and other common household appliances are all provided with doors, taking the oven as an example, most oven doors are hinged doors adopting an outward pulling type, in families with infants, the infants are good, and if parents pull the oven doors without attention, potential safety hazards are easily caused.

Disclosure of Invention

The utility model aims at providing a simple structure can direct fixed mounting at the simple and easy switch lock of oven door side to prevent the oven door and directly pull open.

The purpose of the utility model is realized like this:

a simple door lock comprises a base, a shell, an unlocking button and a return spring, wherein the base is used for being fixed on one side of the door, the shell is rotatably arranged on the base, the unlocking button is movably arranged on the shell, the return spring is arranged between the base and the unlocking button, a lock hole is formed in the base, a lock pin capable of extending into the lock hole is arranged at the inner end of the unlocking button, and a limiting boss abutting against the inner side of the lock hole is formed at the end part of the lock pin so as to limit the rotation of the lock pin in the lock hole; one side of the shell extends outwards to exceed the edge of the base to form a handle, and when the shell is locked, the handle is positioned on the outer side of the door to prevent the door from being opened.

The lock pin further comprises an unlocking part and a locking part, the limiting boss is formed on the locking part, the maximum width of the unlocking part is smaller than the minimum width of the lock hole, and when the unlocking part is located on the inner side of the lock hole, the shell can rotate on the base.

The locking hole is a polygonal hole, the locking part is a polygonal block, the unlocking part is a cylinder, and the outer diameter of the cylinder is smaller than the shortest side length of the polygonal block.

Further, an inner mounting table and an outer mounting table are formed in the middle of the base, a mounting groove is formed between the inner mounting table and the outer mounting table, the locking hole is formed in the inner mounting table, the reset spring is mounted in the mounting groove, and the outer end of the reset spring abuts against the locking pin.

Further set up as, the casing includes shell and drain pan, has seted up on the drain pan and has established the outer mount table outside carries out the pivoted lower mounting hole along outer mount table, is formed with the lower flange in the lower mounting hole, be equipped with on the outer mount table and be located the spacing card strip of lower flange upside.

Further set up to, the mounting hole has been seted up on the shell, the mounting hole outside is extended to the release button outer end, goes up the mounting hole inboard and is equipped with the upper flange, the release button periphery be equipped with the spacing chimb of upper flange matched with, the inboard of upper flange is equipped with cowl, cowl inwards caves in and is formed with spacing ka tai, be equipped with on the spacing chimb with spacing ka tai complex spacing draw-in groove.

Further, the base is provided with a limiting protrusion, the bottom of the shell is provided with a limiting sliding groove, the end part of the limiting sliding groove is provided with a limiting baffle edge, and the limiting protrusion can prevent the shell from continuously rotating when abutting against the limiting baffle edge.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model only needs to fix the base beside the door, when the shell limiting boss is blocked in the lock hole, the shell can not rotate, and the handle is positioned outside the door to prevent the door from opening; when the door needs to be opened, only the unlocking button needs to be pressed, the shell can be rotated when the limiting boss leaves the lock hole, the handle is rotated out of the lock hole, the door can be opened, the structure is simple, and the operation is also very convenient.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of the present invention when locked;

FIG. 3 is a forward exploded view of a portion of the structure of the present invention;

FIG. 4 is a reverse exploded view of the housing and base of the present invention;

fig. 5 is a cross-sectional view of the housing of the present invention;

fig. 6 is a sectional view of the unlocking button according to the present invention.

Detailed Description

The invention will be described in detail with reference to the accompanying drawings, which are shown in fig. 1-6:

in this embodiment, for example, the door lock is installed on an oven door, as shown in fig. 1 to 3, the simple door lock includes a base 1 and a housing 2 rotatably disposed on the base 1, and when the door lock is installed, the base 1 is attached to a side wall (an embedded oven installed inside some embedded walls) of the oven door or an oven door frame through an adhesive; the locking device is characterized by further comprising an unlocking button 3 movably mounted on the shell 2 and a return spring 4 arranged between the base 1 and the unlocking button 3, wherein the base 1 is provided with a locking hole 11, the inner end of the unlocking button 3 is provided with a locking pin 5 capable of extending into the locking hole 11, and a limiting boss 51 abutted against the inner side of the locking hole 11 is formed at the end part of the locking pin 5 so as to limit the locking pin 5 to rotate in the locking hole 11; one side of the shell 2 extends outwards to exceed the edge of the base 1 to form a handle 21, in a locked state, the unlocking button 3 is driven by the elastic force of the return spring to keep a position protruding out of the surface of the shell, at the moment, the limiting boss 51 is clamped in the lock hole, the shell cannot rotate (as shown in fig. 2), and the handle 21 is positioned on the outer side of the door to prevent the door from being opened; when the oven door needs to be opened, the unlocking button only needs to be pressed, the shell can be rotated when the limiting boss 51 leaves the lock hole (as shown in fig. 6), the handle is rotated out to leave the oven door, the oven door can be opened, and the operation is very convenient.

The lock pin 5 comprises an unlocking part 52 and a locking part, the limiting boss 51 is formed on the locking part, the maximum width of the unlocking part 52 is smaller than the minimum width of the lock hole 11, and when the unlocking part 52 is positioned on the inner side of the lock hole 11, the shell 2 can rotate on the base 1.

Specifically, the locking hole 11 is a polygonal hole, the locking portion is a polygonal block matched with the polygonal hole, and the size of the polygonal block is similar to that of the polygonal hole, so that when the polygonal block is located in the polygonal hole, due to blocking of the edge of the polygon, the locking pin cannot rotate freely in the locking hole, and locking is achieved; the unlocking part 52 is a cylinder, the outer diameter of the cylinder is smaller than the shortest side length of the polygonal block, when the unlocking button is pressed, the unlocking part is pushed into the lock hole, the outer diameter of the cylinder is smaller, the cylinder can freely rotate in the lock hole, and then unlocking can be achieved. In this embodiment, as shown in fig. 4, the locking portion is a square block, the locking hole is a square hole, the unlocking portion is integrally cylindrical, and grooves are formed in two sides of the unlocking portion, so that materials are saved.

As shown in fig. 5, an inner mounting table 12 and an outer mounting table 13 are formed in the middle of the base 1, a mounting groove 14 for mounting the return spring 4 is formed between the inner mounting table 12 and the outer mounting table 13, the locking hole 11 is formed in the inner mounting table 12, the bottom of the return spring 4 abuts against the inner side of the base, and the outer end of the return spring 4 abuts against the lock pin 5 (the return spring is not shown in fig. 5, refer to fig. 2).

The shell 2 comprises a shell 6 and a bottom shell 7 which are buckled with each other, an inner cavity for accommodating the reset spring, the unlocking button and the lock pin is formed between the shell 6 and the bottom shell 7, a lower mounting hole 71 which can be sleeved outside the outer mounting platform 13 and can rotate along the outer mounting platform 13 is formed in the bottom shell 7, a lower flange 72 is formed in the lower mounting hole 71, and a limiting clamping strip 131 which is located on the upper side of the lower flange 72 is arranged on the outer mounting platform 13, so that the bottom shell can be limited on the base and is prevented from being separated from the base.

An upper mounting hole 61 is formed in the shell 6, the outer end of the unlocking button 3 extends out of the outer side of the upper mounting hole 61, an upper flange 62 is arranged on the inner side of the upper mounting hole 61, a limiting convex edge 31 matched with the upper flange 62 is arranged on the periphery of the unlocking button 3, and the limiting convex edge 31 is positioned on the inner side of the upper mounting hole 61, so that the unlocking button can be prevented from being separated from the shell 2 under the driving of the elasticity of the reset spring 4; the inner side of the upper flange 62 is provided with an arc-shaped baffle plate 63, the arc-shaped baffle plate 63 is inwards recessed to form a limiting clamping table 64, the limiting convex edge 31 is provided with a limiting clamping groove 32 matched with the limiting clamping table 64, and the limiting clamping table and the limiting clamping groove are matched with each other to limit the positions of an unlocking button and a lock pin, so that the unlocking button and the lock pin are prevented from shifting in the rotating process.

As shown in fig. 1, the base 1 is provided with a limiting protrusion 15, the bottom of the housing 2 is provided with a limiting sliding groove 22, the end of the limiting sliding groove 22 is provided with a limiting edge 23, and the limiting protrusion 15 can prevent the housing 2 from continuing to rotate when abutting against the limiting edge 23, so that the rotation angle of the housing is limited, and the housing is prevented from being damaged due to an overlarge rotation angle.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A simple door lock comprises

A base (1) for fixing to one side of a door;

a housing (2) rotatably provided on the base (1);

it is characterized by also comprising

An unlocking button (3) movably mounted on the housing (2);

a return spring (4) disposed between the base (1) and the unlock button (3);

a lock hole (11) is formed in the base (1), a lock pin (5) capable of extending into the lock hole (11) is arranged at the inner end of the unlocking button (3), and a limiting boss (51) abutted against the inner side of the lock hole (11) is formed at the end part of the lock pin (5) to limit the rotation of the lock pin (5) in the lock hole (11);

one side of the shell (2) extends outwards to exceed the edge of the base (1) to form a handle (21), and when the lock is locked, the handle (21) is positioned on the outer side of the door to prevent the door from being opened.

2. The easy-open door lock according to claim 1, wherein: the lock pin (5) comprises an unlocking part (52) and a locking part, the limiting boss (51) is formed on the locking part, the maximum width of the unlocking part (52) is smaller than the minimum width of the lock hole (11), and when the unlocking part (52) is located on the inner side of the lock hole (11), the shell (2) can rotate on the base (1).

3. The easy-open door lock according to claim 2, wherein: the lock hole (11) is a polygonal hole, the locking part is a polygonal block, the unlocking part (52) is a cylinder, and the outer diameter of the cylinder is smaller than the shortest side length of the polygonal block.

4. The easy-open door lock according to claim 1, 2 or 3, wherein: base (1) middle part shaping has interior mount table (12) and outer mount table (13), is formed with between interior mount table (12) and outer mount table (13) mounting groove (14), has seted up on interior mount table (12) lockhole (11), reset spring (4) are installed in mounting groove (14), reset spring (4) outer end butt in lockpin (5).

5. The easy-open door lock according to claim 4, wherein: casing (2) include shell (6) and drain pan (7), but seted up on drain pan (7) and established can establish outer mount table (13) outside and carry out pivoted lower mounting hole (71) along outer mount table (13), be formed with lower flange (72) in lower mounting hole (71), be equipped with on outer mount table (13) and be located spacing card strip (131) of lower flange (72) upside.

6. The easy-open door lock according to claim 5, wherein: seted up mounting hole (61) on shell (6), the mounting hole (61) outside is extended to unlock button (3) outer end, goes up mounting hole (61) inboard and is equipped with upper flange (62), and unlock button (3) periphery is equipped with spacing chimb (31) with upper flange (62) matched with, and the inboard of upper flange (62) is equipped with cowl (63), and cowl (63) inwards caves in and is formed with spacing ka tai (64), be equipped with on spacing chimb (31) with spacing ka tai (64) complex spacing draw-in groove (32).

7. The easy-open door lock according to claim 1, wherein: be equipped with spacing arch (15) on base (1), casing (2) bottom is equipped with spacing spout (22), and spacing spout (22) tip is equipped with spacing shelves along (23), and spacing arch (15) can prevent when propping on spacing shelves along (23) that casing (2) continue to rotate.