CN216588158U - Door lock catch with convertible use function - Google Patents

Abstract

The utility model discloses a door lock catch capable of converting use functions, which comprises a fixed part and a movable part, wherein the fixed part is provided with a pin shaft and a pin shaft seat, the pin shaft is fixed on the pin shaft seat, the movable part comprises a base and a lock catch piece, and the lock catch piece is rotatably arranged on the base; the base is provided with a first lock catch groove, and the lock catch piece is provided with a second lock catch groove; in a locked state, the pin shaft is limited in the first locking groove and the second locking groove, and the movable part can rotate around the pin shaft; under the unlocking state, the pin shaft can freely enter and exit the first locking groove and the second locking groove. Therefore, the locking and unlocking functions of the lock catch can be realized by rotating the lock catch, in addition, when the lock catch is locked, the function of rotating the movable part of the loose leaf relative to the fixed part can be realized, the double-side rotation opening and closing of the door plate can be realized during application, and the defect that the existing access door can only be opened in a single-side rotation mode is overcome.

Description

Door lock catch with convertible use function

Technical Field

The application relates to the technical field of mechanical connection accessories, in particular to a door lock catch with convertible use functions.

Background

The heat preservation box body is usually provided with an access door, the access door is closed during normal work, and the access door can be opened for maintenance. The access door can be flexibly opened and closed according to the structural principle that the access door can be opened and closed through hinges and pressing buckles on two sides (peripheries) of the door plate. The access door on the market mainly has two kinds of modes of opening and shutting: rotatory opening and shutting and complete dismouting open and shut, the realization structure of two kinds of modes of opening and shutting specifically is:

rotating to open and close: the door is generally composed of a fixed hinge and a pressing buckle, wherein the fixed hinge is arranged on one side of the door plate and can enable the door to rotate for about 180 degrees along the side edge; the other side is provided with a press buckle which is used for tightly closing the door and can be separated to form a movable function. Therefore, the access door has only one motion track, namely, the access door rotates along the hinge fixed on one side, and can not be completely separated.

Complete disassembly and assembly and opening and closing: loose leaves are not adopted, and only pressing buckles are adopted. The periphery is compressed through the pressing buckles, and when the door plate needs to be detached, all the pressing buckles are opened, and the movable door is taken out. Therefore, the access door in the form can not be turned over, can only be completely taken out, is not suitable for a large movable door, and is convenient to rotate to open and close.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to: the door lock catch capable of converting the use function is provided, the functions of the lock catch and the hinge can be realized, the bilateral rotation opening and closing of the door plate can be realized, and the defect that the existing access door can only be opened in a unilateral rotation mode is overcome.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a door lock catch capable of converting use functions comprises a fixed part and a movable part, wherein the fixed part is provided with a pin shaft and a pin shaft seat, the pin shaft is fixed on the pin shaft seat, the movable part comprises a base and a lock catch piece, and the lock catch piece is rotatably arranged on the base;

the base is provided with a first lock catch groove, and the lock catch piece is provided with a second lock catch groove;

the locking piece has a locked state and an unlocked state, and the switching between the locked state and the unlocked state is performed by rotating the locking piece:

in a locked state, the pin shaft is limited in the first locking groove and the second locking groove, and the movable part can rotate around the pin shaft;

and under an unlocking state, the pin shaft can freely enter and exit the first locking groove and the second locking groove.

Preferably, the first latch groove has a first notch, and the second latch groove has a second notch;

in a locking state, the first notch and the second notch are in different directions, so that the pin shaft is limited in the first locking groove and the second locking groove;

in an unlocking state, the first notch and the second notch face the same direction, so that the pin shaft can freely enter and exit the first locking groove and the second locking groove through the first notch and the second notch.

Preferably, a rotating structure used for rotatably connecting the lock catch piece and the base is arranged between the base and the lock catch piece, and the rotating structure comprises a rotating groove and a rotating shaft embedded in the rotating groove;

the rotating groove is formed in the side wall of the base/locking piece, and the rotating shaft is arranged on the side wall of the locking piece/base.

Preferably, the base has base plate and at least two parallel connection in the linking arm of base plate one side, arbitrary adjacent two have a certain distance between the linking arm thereby allow the hasp piece stretches into two between the linking arm, arbitrary adjacent two the linking arm wall in opposite directions is equipped with the rotation groove, be equipped with respectively on the hasp piece with every the rotation groove corresponds the pivot, each the pivot imbeds respectively with it corresponds in the rotation groove.

Preferably, each rotating groove is provided with a third notch, the rotating shaft can enter the rotating groove through the third notch, and an anti-disengaging structure used for preventing the rotating shaft from disengaging from the third notch and restricting the rotating groove is arranged between the lock catch piece and the base.

Preferably, the anti-disengaging structure prevents the rotating shaft from disengaging from the restriction of the rotating groove from the third notch by limiting the rotating stroke of the rotating shaft in the rotating groove.

Preferably, a first limiting protrusion is arranged in the rotating groove, a second limiting protrusion corresponding to the first limiting protrusion is arranged on the rotating shaft, and the rotating stroke of the rotating shaft in the rotating groove can be limited by the limiting of the first limiting protrusion and the second limiting protrusion.

Preferably, the base is provided with a limiting hook, the lock catch piece is provided with a limiting hole, and the rotating stroke of the rotating shaft in the rotating groove is limited by the limiting hook and the limiting hole.

Preferably, a locking member is arranged between the locking member and the base, and the locking member can be locked on the base so as to limit the rotation of the locking member relative to the base.

Preferably, the locking fastener is provided with a rocker arm and a handle, one end of the rocker arm is provided with the second locking groove, the other end of the rocker arm is connected with the handle, and when the handle is attached to the base, the locking fastener is in the locking state.

Preferably, retaining member one end with the handle rotates to be connected, and the other end is provided with protruding knot, be equipped with on the base with the buckle that protruding knot corresponds, through rotating the retaining member can make protruding knot with the buckle lock or break away from with the lock of buckle.

The beneficial effect of this application does: the utility model discloses a door lock catch capable of converting use functions, which can be switched between a locking state and an unlocking state by rotating a lock catch piece, so that the lock catch function is realized, when the door lock catch needs to be fastened, the rotating lock catch enters the locking state, at the moment, a movable part and a fixed part cannot be separated, namely, the door panel is locked on a door frame, when the door lock catch needs to be opened, the rotating lock catch enters the unlocking state, at the moment, the movable part can be separated from the fixed part, namely, the door panel can be separated from the restraint of the door frame; in addition, under the locking state, the movable part can rotate around the pin shaft, the loose-leaf function is realized, and the movable part can be driven to rotate relative to the pin shaft by rotating the door plate.

When the door lock is applied, the door lock catches with the convertible use functions are respectively arranged on the two sides of the door panel, and in the process of opening the door panel, when the door panel rotates around the left side of the door frame as required, only the lock catch on the right side needs to be unlocked; when needs the door plant around the door frame right side when rotating, only need untie left hasp, when needs take off whole door plant, open the hasp of both sides simultaneously, consequently, this scheme can realize the two-sided rotation of door plant and open and shut, and when wherein arbitrary side is blockked by the barrier and can't open the door, the user can be followed the opposite side and opened the door plant, overcomes current access door and can only unilateral rotation open the door, the inflexible defect of mode of opening the door.

Drawings

The present application will be described in further detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of a first embodiment of a door latch capable of converting a use function;

fig. 2 is an exploded view of a first embodiment of a door latch with convertible use function;

FIG. 3 is a schematic structural diagram of a base according to the first embodiment;

fig. 4 is a schematic top view of the fastener of the first embodiment;

fig. 5 is a schematic bottom structure view of the fastener of the first embodiment;

FIG. 6 is a schematic view showing the structure of the locking member according to the first embodiment;

FIG. 7 is a schematic view showing a process of unlocking the locking member according to the first embodiment;

fig. 8 is a schematic view illustrating an unlocking process of the door latch capable of converting the use function according to the first embodiment;

FIG. 9 is a schematic structural diagram of a first embodiment of a convertible functional door latch;

FIG. 10 is a schematic view of the first embodiment of the present invention showing the unlocked door latch with convertible use function;

fig. 11 is a schematic structural view of a movable portion of a door latch capable of switching use functions according to a second embodiment;

fig. 12 is an exploded view of a second embodiment of a door latch with convertible use function.

In the figure:

1. a fixed part; 11. a pin shaft; 2. a base; 21. a first latch slot; 211. a first notch; 22. a substrate; 23. a connecting arm; 24. a rotating groove; 25. a first limit protrusion; 26. buckling the plate; 27. a lower buckling block; 28. a limiting hook; 3. a fastener; 31. a second locking groove; 311. a second notch; 32. a rocker arm; 33. a handle; 34. a rotating shaft; 35. a second limit bulge; 36. mounting holes; 37. a limiting bulge; 38. a buckling block is arranged; 39. a limiting hole; 4. a locking member; 41. a convex buckle; 42. a limiting groove; 51. a door panel; 52. a door frame.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present application clearer, the following describes technical solutions of embodiments of the present application in further detail, and it is obvious that the described embodiments are only a part of embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The first embodiment.

The present embodiment provides a door lock catch with convertible use function, which can be applied to the door panel opening and closing installation of various buildings, boxes and cabinets.

As shown in fig. 1-2, the present embodiment includes a fixed portion 1 and a movable portion, the fixed portion 1 has a pin 11 and a pin seat, the pin 11 is fixed on the pin seat, the movable portion includes a base 2 and a locking element 3, and the locking element 3 is rotatably mounted on the base 2; in application, the fixed part 1 is mounted on the door frame 52, and the movable part is mounted on the door panel 51 (or the fixed part 1 may be mounted on the door panel 51, and the movable part may be mounted on the door frame 52). Therefore, when the movable part is fastened with the fixed part 1, the door panel 51 can not be separated from the door frame 52, and when the movable part is unfastened from the fixed part 1, the door panel 51 can be separated from the door frame 52; when the device is installed, two ends of the pin shaft 11 are connected with the pin shaft seat, the middle part of the pin shaft 11 keeps a certain distance from the pin shaft seat, so that the movable part is allowed to be buckled with the pin shaft 11, and the pin shaft seat provides mechanical support for the pin shaft 11, so that the pin shaft seat and the pin shaft 11 are kept relatively static all the time; counter bores are arranged at two ends of the pin shaft seat, the fixing part 1 can be fixed on the door plate 51 or the door frame 52 by passing screws through the counter bores, and a counter bore cover for plugging the counter bores is further arranged on the pin shaft seat for enabling the appearance to be attractive;

the base 2 has a first locking groove 21, and the locking piece 3 has a second locking groove 31;

the catch member 3 has a locked state and an unlocked state, and switching between the locked state and the unlocked state is performed by rotating the catch member 3:

in the locked state, the pin shaft 11 is limited in the first locking groove 21 and the second locking groove 31, and the movable part can rotate around the pin shaft 11; namely, the door lock catch in this state has the using function of loose-leaf, and two objects respectively connected with the movable part and the fixed part 1 can relatively rotate around the pin shaft 11;

in the unlocked state, the pin 11 can freely enter and exit the first locking groove 21 and the second locking groove 31. That is, the door lock catch in this state has the function of using the lock catch member, and the two objects respectively connected to the movable portion and the fixed portion 11 can be relatively opened and closed. In application, referring to fig. 9, the locking device of the present embodiment is installed on both sides of the door panel 51, the fixed part 1 is installed on the door frame 52, the movable part is installed on the door panel 51, and when the locking devices on both sides are in the locked state, the door panel 51 is fixed in the door frame 52 and cannot be opened. Based on the hasp structure of this scheme, can realize opening door plant 51 around the left hasp rotation, also can open door plant 51 around the hasp rotation on right side, specific process is as follows:

when the door panel needs to be opened from the left side, referring to fig. 10, only all the latches on the left side of the door panel 51 are opened, at this time, the movable part on the left side can be separated from the fixed part 1, and the door panel 51 can rotate around the fixed part 1 on the right side by pulling the door panel 51; when the door panel 51 needs to be opened from the right side, only all the latches on the right side of the door panel 51 are opened, at this time, the movable part on the right side can be separated from the fixed part 1, and the door panel can rotate around the fixed part 1 on the left side by pulling the door panel 51. It should be noted that the present embodiment is only described in a conventional arrangement, that is, the door is opened from the left and right directions, and it can be understood that the door opening operation in the up and down directions can be realized when the lock catch is installed on the upper and lower sides of the door panel 51.

In addition, all the latches can be opened simultaneously, and the door panel 51 can be directly taken down from the door frame 52.

Therefore, the lock catch of the scheme can simultaneously realize the use functions of the press buckle and the loose-leaf. The use is more flexible and changeable.

In order to realize that the locking member 3 can switch between the locking state and the unlocking state, preferably, the first locking groove 21 has a first notch 211, the second locking groove 31 has a second notch 311, the pin 11 can enter the first locking groove 21/the second locking groove 31 through the first notch 211/the second notch 311, a limit is formed between the side walls of the first locking groove 21 and the second locking groove 31 and the pin 11, and the pin 11 can only be separated from the constraint of the first locking groove 21 and the second locking groove 31 by the first notch 211 and the second notch 311;

in the locked state, the first notch 211 and the second notch 311 are oriented differently, so as to limit the pin 11 in the first locking groove 21 and the second locking groove 31; that is, in this state, the side wall of the first locking groove 211 blocks the pin 11 from sliding out of the second notch 311, the side wall of the second locking groove 311 blocks the pin 11 from sliding out of the first notch 211, and the two locking grooves constrain the pin 11 in pairs for 360 °, so that the pin 11 cannot be separated from the movable part;

in the unlocked state, the first notch 211 and the second notch 311 are facing the same, so that the pin 11 can freely enter and exit the first latch groove 21 and the second latch groove 31 through the first notch 211 and the second notch 311. Referring to the unlocking process of fig. 7, in this state, the first notch 211 and the second notch 311 are oriented in the same direction, and the pin 11 can slide out of the locking groove from the direction of the first notch 211 and the second notch 311, and also can enter the locking groove from the first notch 211 and the second notch 311.

Specifically, as for the connecting structure between the base 2 and the locking part 3, referring to fig. 3-4, a rotating structure for rotatably connecting the locking part 3 and the base 2 is arranged between the base 2 and the locking part 3, and the rotating structure comprises a rotating groove 24 and a rotating shaft 34 embedded in the rotating groove 24;

the rotation groove 24 is disposed on the sidewall of the base 2/locking element 3, and the rotation shaft 34 is disposed on the sidewall of the locking element 3/base 2.

That is, the rotation groove 24 and the rotation shaft 34 are correspondingly configured, and when the rotation groove 24 is disposed on the base 2, the rotation shaft 34 needs to be disposed on the locking element 3; when the rotation groove 24 is provided on the locking member 3, the rotation shaft 34 is provided on the base 2. The arrangement of the rotating groove 24 and the rotating shaft 34 needs to satisfy the condition that the axes thereof are parallel to the pin shaft 11, and in the locked state, the pin shaft 11 needs to satisfy the condition that the pin shaft 11 is simultaneously located in the rotating groove 34 and the rotating groove 24, so as to ensure that the rotating shaft 34 can still rotate in the rotating groove 24 when the pin shaft 11 is placed in the first locking groove 21 and the second locking groove 31. In order to ensure that the pin 11 can be disengaged from the rotating shaft 34, the rotating shaft 34 has a groove corresponding to the second locking groove 21.

Specifically, to rotating-structure's concrete position that sets up, base 2 has base plate 22 and at least two parallel connection in the linking arm 23 of base plate 22 one side, arbitrary adjacent two thereby have a certain distance between the linking arm 23 and allow lock catch piece 3 stretches into two between the linking arm 23, arbitrary adjacent two the wall in opposite directions of linking arm 23 is equipped with rotate the groove 24, be equipped with on lock catch piece 3 respectively with every it corresponds to rotate the groove 24 pivot 34, each pivot 34 imbeds respectively with it corresponds rotate in the groove 24.

Connecting arms 23 are supported by base plate 22, and at least two connecting arms 23 are provided, which indicates that connecting arms 23 can be two, three, four or more, and two adjacent connecting arms 23 have a gap allowing latch element 3 to be inserted, which indicates that latch element 3 needs to have rocker arms 32 whose number corresponds to the gap, and each rocker arm 32 is inserted into the corresponding gap, and connecting arms 23 and rocker arms 32 are arranged in a staggered connection manner. The opposite wall surfaces of each connecting arm 23 are provided with rotating grooves 24, and each rotating groove 24 is correspondingly embedded with a rotating shaft 34, i.e. the side wall of each rocker arm is provided with a rotating shaft 34 for connecting with the rotating groove 24.

For easy understanding, referring to fig. 2-4, in this embodiment, taking the example that the base 2 has two connecting arms 23, there is a gap between the two connecting arms 23, that is, the locking device 3 has a corresponding rocker arm 32, and the left and right sides of the rocker arm 32 are respectively provided with the rotating shaft 34, after installation, the connecting arms 23 respectively limit the left and right sides of the rotating shaft 34, so as to prevent the locking device 3 from being disengaged from the left and right sides of the base 2 (i.e., the axial direction of the rotating shaft 34), and the locking device 3 can only rotate around the base 2, thereby ensuring the stability of the structure.

In order to conveniently install the rotating shaft 34 into the rotating grooves 24, each rotating groove 24 is provided with a third notch, preferably, the orientation of the third notch is the same as that of the first notch 211, the rotating shaft 34 can enter the rotating groove 24 through the third notch, and an anti-falling structure for preventing the rotating shaft 34 from being separated from the third notch to restrict the rotating groove 24 is arranged between the locking piece 3 and the base 2. Therefore, the rotating shaft 34 can be installed in the rotating groove 24 through the third notch during installation, and the falling off of the rotating shaft 34 can be prevented through the falling off prevention structure.

Preferably, the anti-disengaging structure prevents the rotation shaft 34 from being disengaged from the restriction of the rotation groove 24 from the third notch by limiting the rotation stroke of the rotation shaft 34 in the rotation groove 24.

The installation process and the specific anti-falling principle of the locking fastener 3 are as follows:

referring to fig. 3 and 4, the rotating shaft 34 is in a crescent shape, and the width of the third notch of the rotating groove 24 is smaller than the diameter of the rotating groove 24, that is, the radian of the rotating groove 24 is also the major arc, before the rotating shaft 34 is installed in the rotating groove 24, the rotating shaft 34 is aligned with the third notch, the rotating shaft 34 is installed in the rotating groove 24 from bottom to top, and then the whole locking piece 3 is rotated clockwise to realize the installation of the locking piece 3. As long as the transverse span of the rotation shaft 34 inside the rotation slot 24 is larger than the width of the third notch, the rotation shaft 34 cannot be disengaged from the restriction of the rotation slot 34. Therefore, the anti-slip function can be achieved by ensuring that the transverse span of the rotating shaft 34 in the rotating groove 24 is greater than the width of the third notch.

Preferably, in this embodiment, the first notch 211 of the first locking groove 21 is oriented perpendicular to the plane of the substrate 22, and when the locking element 3 is attached to the substrate 22, the second notch 311 of the second locking groove 31 is oriented exactly parallel to the direction of the substrate 22, and is in the locking state; when in the unlocked state, the orientation of the second notch 311 is exactly the same as the first notch 211, and the maximum stroke value of the anti-separation structure constraint is exactly reached, that is, the rotational stroke of the locking piece 3 is 90 °.

Specifically, for the anti-disengaging structure, in this embodiment, a first limiting protrusion 25 is arranged in the rotating groove 24, the rotating shaft 34 is provided with a second limiting protrusion 35 corresponding to the first limiting protrusion 25, and the rotating stroke of the rotating shaft 34 in the rotating groove 34 can be limited by the limiting of the first limiting protrusion 25 and the second limiting protrusion 35.

Further, in order to avoid the limit interference of the first limit protrusion 25 and the second limit protrusion 35 to install the rotating shaft 34 into the rotating groove 24, referring to fig. 3-4, one side of the first limit protrusion 25 and one side of the second limit protrusion 35 are respectively provided with an inclined guide surface, in the process of installing the locking part 3 from bottom to top and rotating the locking part 35 clockwise, the two guide surfaces are same in orientation, the second limit protrusion 35 can pass through the guide surface and cross the first limit protrusion 25, and after the second limit protrusion 35 passes through the first limit protrusion 25, the first limit protrusion 25 cannot be reversely crossed, so that the purpose of limiting the rotating stroke of the locking part 3 is achieved.

In order to prevent the occurrence of an accident of automatic unlocking caused by the rotation of the locking device 3 under the non-manual operation and control when the lock catch is in the locked state, in this embodiment, referring to fig. 2 and 6, a locking device 4 is disposed between the locking device 3 and the base 2, and the locking device 4 is locked to lock the locking device 3 on the base 2, so as to limit the rotation of the locking device 3 relative to the base 2.

On the other hand, can set up certain unblock degree of difficulty artificially on retaining member 4 to prevent that non-staff from opening the hasp easily. For example, the locking member 4 is embedded in the locking member 3, and the locking member 4 is provided with a hexagon socket, so that the locking member can be opened by using a hexagonal wrench when the locking member is opened.

In order to facilitate the unlocking by human hands, in this embodiment, the locking device 3 has a rocker arm 32 and a handle 33, one end of the rocker arm 32 is provided with the second locking groove 31, the other end is connected to the handle 33, and when the handle 33 is attached to the base 2, the locking device 3 is in the locking state. That is, in this embodiment, after the latch member 3 is unlocked, the handle 33 of the latch member 3 may be used as a door handle for pulling the door panel 51, and when the handle 33 is pulled out, the latch is just in the unlocked state.

Retaining member 4 one end with handle 33 rotates to be connected, and the other end is provided with protruding knot 41, be equipped with on base 2 with the buckle 26 that protruding knot 41 corresponds, through rotating retaining member 4 can make protruding knot 41 with buckle 26 lock or break away from with the lock of buckle 26.

Specifically, referring to fig. 3 to 6, a mounting hole 36 is formed in the handle 33, the locking member 4 is mounted in the mounting hole 36, a long hole allowing the male buckle 41 of the locking member 4 to pass through is formed in the buckle plate 26, and the male buckle 41 and the buckle plate 26 can be fastened or unfastened by rotating the locking member 4. That is, when the locking member 4 is rotated until the convex button 41 is aligned with the long hole on the buckle plate 26, the convex button 41 can freely enter and exit the long hole, and at this time, the locking member 4 is in the unlocking state; when the convex button 41 passes through the long hole inwards, the locking piece 4 is rotated, the convex button 41 can be fastened with the inner side of the buckle plate 26, the convex button 41 is limited in the buckle plate 26, and the locking piece 4 is in a locking and fastening state.

Further, a limit protrusion 37 is provided in the mounting hole 36, a limit groove 42 corresponding to the limit protrusion 37 is provided in the locking member 4, and the limit protrusion 37 is inserted into the limit groove 42, so that the rotation angle of the locking member 4 can be limited. On the other hand, the base 2 is provided with the lower buckling block 27, the inner side of the handle 33 is provided with the upper buckling block 38, the lower buckling block 27 is just buckled with the upper buckling block 38 in a locking state, and when the handle 33 is shifted, elastic jumping can occur between the lower buckling block 27 and the upper buckling block 38, so that the operation hand feeling can be optimized.

Example two.

Based on the first embodiment, the present embodiment provides a new implementation manner for the anti-disengaging structure, and specifically, referring to fig. 11 to 12, the base 2 is provided with a limiting hook 28, the locking member 3 is provided with a limiting hole 39, and the rotation stroke of the rotating shaft 34 in the rotation groove 24 is limited by the limiting hook 28 and the limiting hole 39. Specifically, under the limitation of the limit hook 28, the rotation stroke of the locking element 3 relative to the base 2 is 0-90 °. The limiting hole 39 is disposed on one side of the second locking groove 21 facing the limiting hook 28, and when the locking member 3 is rotated to be in the unlocking state, the limiting hook 28 just abuts against the side wall of the limiting hole 39, so as to limit the rotation stroke of the locking member 3.

Preferably, limit hook 28 can dismantle set up in between the linking arm 23, and is specific, be equipped with the installation position that is used for installing limit hook 28 on base 2, when carrying out product assembly, install on hasp piece 3 to base 2 earlier, install limit hook 28 to the installation position of base 2 again, can make the hook portion of limit hook 28 can extend to in the spacing hole 39 this moment.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, 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 not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principles of the present application have been described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the present application and is not to be construed in any way as limiting the scope of the application. Based on the explanations herein, a person skilled in the art will be able to conceive of other embodiments of the present application without inventive effort, which shall fall within the scope of protection of the present application.

Claims (11)

1. A door lock catch capable of converting use functions, which is characterized in that,

the fixing part (1) is provided with a pin shaft (11) and a pin shaft seat, the pin shaft (11) is fixed on the pin shaft seat, the movable part comprises a base (2) and a locking piece (3), and the locking piece (3) is rotatably arranged on the base (2);

the base (2) is provided with a first locking groove (21), and the locking piece (3) is provided with a second locking groove (31);

the locking piece (3) has a locked state and an unlocked state, and the switching between the locked state and the unlocked state is performed by rotating the locking piece (3):

in a locking state, the pin shaft (11) is limited in the first locking groove (21) and the second locking groove (31), and the movable part can rotate around the pin shaft (11);

under the unlocking state, the pin shaft (11) can freely go in and out of the first locking groove (21) and the second locking groove (31).

2. The convertible in use door latch as claimed in claim 1,

the first latch groove (21) has a first notch (211), and the second latch groove (31) has a second notch (311);

in the locking state, the first notch (211) and the second notch (311) are oriented differently, so that the pin shaft (11) is limited in the first locking groove (21) and the second locking groove (31);

in the unlocking state, the first notch (211) and the second notch (311) face the same direction, so that the pin shaft (11) can freely enter and exit the first locking groove (21) and the second locking groove (31) through the first notch (211) and the second notch (311).

3. The convertible utility door latch of claim 2,

a rotating structure used for rotatably connecting the lock catch piece (3) and the base (2) is arranged between the base (2) and the lock catch piece (3), and comprises a rotating groove (24) and a rotating shaft (34) embedded in the rotating groove (24);

the rotating groove (24) is formed in the side wall of the base (2)/the locking piece (3), and the rotating shaft (34) is formed in the side wall of the locking piece (3)/the base (2).

4. A convertible functional door latch as claimed in claim 3, characterized in that said base (2) has a base plate (22) and at least two connecting arms (23) connected in parallel to one side of said base plate (22), a certain distance is provided between any two adjacent connecting arms (23) so as to allow said latch member (3) to extend between two said connecting arms (23), said rotating slots (24) are provided on facing walls of any two adjacent connecting arms (23), said latch member (3) is provided with said rotating shafts (34) corresponding to each said rotating slot (24), and each said rotating shaft (34) is inserted into the corresponding said rotating slot (24).

5. The convertible functional door latch as claimed in claim 4, characterized in that each of the rotation slots (24) has a third slot opening through which the shaft (34) can enter the rotation slot (24), and a locking structure for preventing the shaft (34) from being disengaged from the rotation slot (24) is provided between the latch member (3) and the base (2).

6. The convertible door latch as claimed in claim 5, wherein the anti-release structure prevents the shaft (34) from disengaging the restriction of the rotation slot (24) from the third notch by limiting the rotational travel of the shaft (34) in the rotation slot (24).

7. The convertible door lock of claim 6, characterized in that a first limiting protrusion (25) is disposed in the rotation slot (24), the rotation shaft (34) is provided with a second limiting protrusion (35) corresponding to the first limiting protrusion (25), and the rotation stroke of the rotation shaft (34) in the rotation slot (24) can be limited by the limitation of the first limiting protrusion (25) and the second limiting protrusion (35).

8. The convertible door lock as claimed in claim 6, characterized in that the base (2) is provided with a limit hook (28), the lock member (3) is provided with a limit hole (39), and the rotation stroke of the rotating shaft (34) in the rotation groove (24) is limited by the limit of the limit hook (28) and the limit hole (39).

9. A convertible door latch as claimed in any one of claims 1 to 8, characterized in that a locking member (4) is provided between the catch member (3) and the base (2), the catch member (3) being lockable to the base (2) by locking the locking member (4), thereby restricting rotation of the catch member (3) relative to the base (2).

10. A convertible door latch as claimed in claim 9, characterized in that the latch member (3) has a rocker arm (32) and a handle (33), the rocker arm (32) being provided at one end with the second latch recess (31) and at the other end with the handle (33), the latch member (3) being in the latched state when the handle (33) abuts the base (2).

11. The doorlock catch capable of converting functions into a functional lock according to claim 10, wherein one end of the locking member (4) is rotatably connected to the handle (33), the other end of the locking member is provided with a convex buckle (41), the base (2) is provided with a buckle plate (26) corresponding to the convex buckle (41), and the convex buckle (41) can be buckled with the buckle plate (26) or separated from the buckle plate (26) by rotating the locking member (4).

Images