CN113236025A

CN113236025A - Handle lock and low-temperature cabinet with same

Info

Publication number: CN113236025A
Application number: CN202110523271.5A
Authority: CN
Inventors: 纪养全; 李军锋; 郭悦; 张扬; 袁顺涛
Original assignee: Qingdao Haier Biomedical Co Ltd
Current assignee: Qingdao Haier Biomedical Co Ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-08-10
Anticipated expiration: 2041-05-13
Also published as: CN113236025B

Abstract

The invention discloses a handle lock and a low-temperature cabinet with the same, comprising: door body coupling assembling still including: the handle assembly is rotatably connected to the door body connecting assembly and can rotate relative to the door body connecting assembly; a locking nose capable of cooperating with the handle assembly to lock the handle assembly when the handle assembly is rotated into position; the elastic torsion piece is connected between the door body connecting assembly and the handle assembly so as to apply force to the handle assembly to reset the handle assembly after the handle assembly is unlocked with the lock nose; the spring bolt subassembly, the assembly is on the handle subassembly, the spring bolt subassembly is including: a latch bolt; the handle lock comprises a door body connecting component, a door body connecting component and a lock tongue driving mechanism, wherein the door body connecting component is arranged on the door body connecting component, and the lock tongue driving mechanism can drive the lock tongue to move between a locking position abutting against the door body connecting component and an unlocking position separated from the door body connecting component.

Description

Handle lock and low-temperature cabinet with same

Technical Field

The invention belongs to the technical field of low-temperature storage equipment, and particularly relates to a handle lock and an improvement of a low-temperature cabinet structure with the handle lock.

Background

The low temperature cabinet is in the use, because the requirement to the minimum temperature that reaches and temperature homogeneity is very high, so the heat preservation effect is a very important factor, except the heat retaining facility of the self that the cabinet body of low temperature cabinet set up, the locking effect that is used for locking fixed lock body to the cabinet body and the door body of low temperature cabinet is good or bad and to the cold volume in the low temperature cabinet reveal the influence great, current low temperature cabinet lock fastening is regularly mainly through setting up the padlock on the cabinet body and the door body, carry out the locking of the cabinet body and the door body through the padlock, it is poor to the cabinet body and the locking effect of the door body, can have the problem that cold volume revealed, and then influence the temperature storage performance of whole low temperature cabinet.

Disclosure of Invention

Aiming at the problem that a lock body for a low-temperature cabinet in the prior art is infirm in locking and fixing, the invention provides a novel handle lock which can realize double-layer locking during locking and fixing and is firmer in locking and fixing. .

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

a handle lock comprising:

door body coupling assembling still including: the handle assembly is rotatably connected to the door body connecting assembly and can rotate relative to the door body connecting assembly;

a locking nose capable of cooperating with the handle assembly to lock the handle assembly when the handle assembly is rotated into position; the elastic torsion piece is connected between the door body connecting assembly and the handle assembly so as to apply force to the handle assembly to reset the handle assembly after the handle assembly is unlocked with the lock nose;

the spring bolt subassembly, the assembly is on the handle subassembly, the spring bolt subassembly is including: a latch bolt;

the lock tongue driving mechanism can drive the lock tongue to act so that the lock tongue moves between a locking position abutting against the door body connecting assembly and an unlocking position separated from the door body connecting assembly.

In some embodiments of the present application, the door body coupling assembling includes:

the first connecting piece is provided with a first mounting part which is used for being connected with the door body;

a second connector slidably mounted on the first connector.

In some embodiments of the present application, the handle assembly comprises:

a handle having a fitting cavity formed therein;

the fixed part is assembled in the assembly cavity and fixedly connected with the handle, the fixed part is rotatably connected with one end of the handle through a rotating part and a second connecting part, and the other end of the fixed part is provided with a hooking component matched with the lock nose.

In some embodiments of the present application, the hooking component includes: a hooking rod assembled on the fixing part;

the shaft sleeve is sleeved on the hooking rod and is used for being locked and fixed with the lock nose.

In some embodiments of the present application, the elastic torsion member is sleeved on the rotating member, and both ends of the elastic torsion member respectively abut against the fixed member and the second connecting member.

In some embodiments of the present application, the deadbolt actuation mechanism includes

The lock core is provided with a shifting part, and the shifting part and the lock core form an eccentric mechanism;

a sliding part is arranged on the lock tongue, and the shifting part is inserted into the sliding part;

when the lock cylinder rotates, the shifting part is driven to slide relative to the sliding part, and the lock tongue is driven to move up and down;

the limiting structure is arranged on the bolt and/or the fixed part and can at least limit the rotation of the bolt.

In some embodiments of the present application, the limiting structure includes:

the first limiting structure is arranged on the lock tongue or the fixed part and used for limiting the rotation of the lock tongue;

and the second limiting structure is arranged on the lock tongue and/or the fixed part and used for limiting the up-and-down moving position of the lock tongue.

In some embodiments of the present application, the method further comprises:

the locking positioning assembly is connected between the handle and the lock tongue and used for locking and positioning the lock tongue, and the locking positioning assembly comprises:

the positioning parts are arranged on the lock tongues, are provided with a plurality of positioning parts and are arranged along the height direction of the lock tongues;

the end part of the positioning piece is a smooth curved surface, and the positioning piece is assembled in at least one positioning part;

two ends of the elastic connecting piece are respectively connected and fixed with the handle and the positioning piece;

the positioning piece can be clamped into one positioning part to position the lock tongue when the lock tongue moves in place.

The application also provides a low temperature cabinet, including: a cabinet body;

the door body is connected to the cabinet body and can be opened or closed relative to the cabinet body;

still including above-mentioned technical scheme the handle lock, the door body coupling assembling with door body fixed connection be provided with on the cabinet body and pass the position control spare of lock nose be provided with on the lock nose can the gliding slide adjusting part of relative position control spare, when the lock nose slides to target in place, the position control spare is pressed and is established right on the lock nose location.

In some embodiments of the present application, the cryogenic cabinet further comprises: the lock nose adjusting piece is positioned between the lock nose and the cabinet body and assembled on the cabinet body;

a locating structure formed between the locking nose and the locking nose adjustment member, the locating structure comprising:

the first positioning bulges are formed on the lock nose and are provided with a plurality of first inserting parts, and a first inserting part is formed between every two adjacent first positioning bulges;

the second positioning bulges are formed on the lock nose adjusting piece and are provided with a plurality of second inserting parts, and a second inserting part is formed between the adjacent second positioning bulges;

when the lock nose is adjusted in place, the lock nose is inserted and matched with the second inserting part through the first positioning protrusion, and the first inserting part is inserted and matched with the second positioning protrusion to be locked and fixed with the lock nose adjusting piece. Compared with the prior art, the invention has the advantages and positive effects that:

when the handle lock is used, the handle assembly is rotated relative to the door body connecting assembly and is matched with the lock nose to realize locking and fixing, so that the first layer of locking and fixing of the handle lock is realized;

meanwhile, the handle lock is correspondingly provided with the spring bolt assembly, the spring bolt is driven to act through the action of the spring bolt driving mechanism so as to abut against the door body connecting assembly to realize further locking and fixing, the double locking and fixing of the connection between the door body and the cabinet body are realized, and the locking and fixing are firmer.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a handle lock according to an embodiment of the present invention;

FIG. 2 is an exploded view of a handle lock according to one embodiment of the present invention;

fig. 3 is a schematic structural view of the connection and matching between the fixing part and the door body connecting piece in the first embodiment of the invention;

FIG. 4 is a first schematic structural diagram of a fixing member according to a first embodiment of the present invention;

FIG. 5 is a second schematic structural diagram of a fixing member according to a first embodiment of the present invention;

FIG. 6 is a third schematic structural diagram of a fixing member according to a first embodiment of the present invention;

FIG. 7 is a schematic view of a lock tongue assembled in a handle according to an embodiment of the present invention;

fig. 8 is a schematic structural view of the cooperation between the latch and the fixing member in the first embodiment of the present invention;

fig. 9 is a first structural diagram illustrating the cooperation between the lock tongue and the lock cylinder in the first embodiment of the invention;

fig. 10 is a second schematic structural view of the cooperation between the lock tongue and the lock cylinder in the first embodiment of the invention;

FIG. 11 is a first schematic structural view of a handle lock according to a second embodiment of the present invention;

FIG. 12 is a second schematic structural view of a handle lock according to a second embodiment of the present invention;

fig. 13 is a schematic structural view of a lock cylinder of a handle lock according to a second embodiment of the present invention;

fig. 14 is a schematic structural view of a lock body of a handle lock without a bolt according to a second embodiment of the present invention;

fig. 15 is an exploded view of the lock nose and the lock nose adjusting member of the low temperature cabinet according to the third embodiment of the present invention;

fig. 16 is a schematic structural diagram of a lock nose of a low-temperature cabinet according to a third embodiment of the invention.

Wherein, the door body connecting assembly is-100; a first connector-110; a first mounting portion-111; an extension carrier-112;

a second connector-120; a horizontal bending section-121; a vertical bend-122; a mounting cavity 123;

a handle-200; a handle grip-210; a handle attachment portion-220; an assembly cavity-230;

a fixed part-300; a first connection portion-320; a second bending limiting part-321; a second connecting portion-330; a third bending limiting part-331; a rotor-350;

-400 an elastic torsion element; hooking the component-500; hooking rod-510; a sleeve-520;

a lock nose-600; a slide adjusting portion-610;

a latch bolt assembly-700; a lock cylinder-710; a toggle part-711; a latch-720; a sliding part-721; a first limiting part-722;

locking and positioning assembly-800; a positioning part-810; positioning element-820; -830 of elastic connectors;

a lock nose adjustment-910; a screw locking portion 911; a position adjuster-920; a first positioning bump-930; a first insertion portion-940; a second positioning projection-950; a second cartridge portion-960.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The invention provides an embodiment of a handle lock, which is mainly connected between a door body and a cabinet body and used for realizing locking and fixing between the door body and the cabinet body.

The handle lock includes: door body coupling assembling 100, door body coupling assembling 100 is used for assembling on the door body.

In some embodiments of the present application, the door body coupling assembly 100 includes:

the first connector 110 is provided with a first mounting portion 111 connected to the door body on the first connector 110.

The first connecting member 110 is a first connecting seat, and the first mounting portion 111 is a threaded hole disposed on the first connecting seat.

In order to enhance the connection stability of the door body, a plurality of threaded holes are correspondingly formed in the first connecting piece 110, and the first connecting piece 110 is locked and fixed on the door body through screws during connection.

And the second connecting member 120 is slidably inserted into the first connecting member 110 and is locked and fixed with the first connecting member 110 by a locking member.

An extending bearing part 112 extending outwards is arranged at the bottom of the first connecting seat, the second connecting part 120 is a bent seat body and comprises a horizontal bending section and a vertical bending section, and the horizontal bending section 121 is correspondingly erected on the extending bearing part 112.

The horizontal bending section 121 is provided with a thread fixing hole penetrating through the horizontal bending section 121, the extension bearing part 112 is also provided with a thread fixing hole, and when the connection and the fixation are performed, a locking screw penetrates through the thread fixing holes on the horizontal bending section 121 and the extension bearing section 112 to fix the horizontal bending section 121 and the extension bearing section 112.

In order to realize the rapid assembly of the second connecting member 120 and the first connecting member 110, a sliding groove is formed on the horizontal bending section 121 of the second connecting member 120, a sliding protrusion track is formed on the first connecting member 110, and the sliding groove of the second connecting member 120 is clamped on the sliding protrusion track and is assembled on the first connecting member 110 in a sliding manner along the sliding protrusion track.

The second connecting piece 120 is arranged on the first connecting piece 110 in a lap joint mode, so that the second connecting piece 120 can be well supported, and the stability of supporting and fixing the second connecting piece 120 is guaranteed.

Vertical kinking 122 is for following horizontal kinking 121 goes up the downward bending extension and forms, and vertical kinking 122 is provided with 2 sections, and relative setting is formed with top side and bottom between vertical kinking 122 and horizontal kinking 121 and has open-ended installation cavity 123.

And the handle assembly is rotationally connected to the door body connecting assembly 100 and can rotate relative to the door body connecting assembly 100.

A locking nose 600 capable of cooperating with the handle assembly to lock the handle assembly when the handle assembly is rotated into position. In some embodiments of the present application, the handle assembly comprises:

the handle 200, a mounting cavity 230 is formed in the handle 200, and the mounting cavity 230 is used for mounting related parts.

And a fixed member 300 fitted in the fitting chamber 230 and having one end rotatably connected to the second connecting member 120 via a rotating member 350 and the other end provided with a hooking member 500 for engaging with the locking nose 600.

The rotation member 350 may be a rotation shaft or the like capable of realizing a rotational connection.

In some embodiments of the present application, one end of the rotating member 350 of the fixed member 300 is provided with a first connecting portion 320, the first connecting portion 320 is a first folding arm formed at both sides of the fixed member 300, and both ends of the rotating member 350 are assembled on 2 first folding arms and the end portion extends out of the first folding arms.

The fixed component 300 and the rotating component 350 are inserted into the mounting cavity 123 in the second connecting piece 120, insertion holes are formed in the side wall of the mounting cavity 123, and two ends of the rotating component 350 extending out of the 2 first turnover arms are respectively inserted into the insertion holes to realize the rotating connection with the second connecting piece 120.

The end of the fixing member 300 where the hooking component 500 is disposed is provided with a second connecting portion 330, the second connecting portion 330 is a second folded arm formed on two sides of the fixing member 300 and disposed oppositely, and the hooking component 500 is assembled on 2 second folded arms.

In some embodiments of the present application, the hooking component 500 includes:

a hooking rod 510 assembled on the second folding arm;

and a shaft sleeve 520 sleeved on the hooking rod 510.

The lock nose 600 has a hook portion when being arranged, and the lock nose 600 can be directly hooked on the shaft sleeve 520 through the hook portion to realize locking and fixing between the hooking component 500.

In some embodiments of the present application, the inner diameter of the shaft sleeve 520 is slightly larger than the outer diameter of the hooking rod 510, so that the shaft sleeve 520 sleeved thereon can rotate relative to the hooking rod 510.

Because the shaft sleeve 520 can rotate relative to the hooking rod 510, when the lock nose 600 contacts with the shaft sleeve 520, the shaft sleeve 520 can rotate relative to the lock nose 600, and the lock nose 600 can be quickly locked and hooked on the shaft sleeve 520 through the friction force between the shaft sleeve 520 and the lock nose 600.

And, because the axle sleeve 520 can rotate relative to lock nose 600, make the friction mode between axle sleeve 520 and the lock nose 600 be rolling friction like this, compare with the static friction mode that current lock nose colludes on colluding the pole 510, reduced frictional force for the handle lock is more laborsaving when carrying out the locking fastening.

And the elastic torsion piece 400 is connected between the door body connecting assembly 100 and the handle assembly so as to apply force to the handle assembly to reset the handle assembly after the handle assembly is unlocked from the lock nose 600.

In some embodiments of the present application, the elastic torsion member 400 is sleeved on the rotation member 350, and two ends of the elastic torsion member respectively abut against the fixed member 300 and the second connection member 120.

In some embodiments of the present application, the elastic torsion member 400 is a torsion spring, which includes a torsion spring body and a first leg and a second leg disposed at two ends of the torsion spring body, wherein the first leg abuts against the second connecting member and the second leg abuts against the fixing member 300 when the first leg and the second leg are connected.

In a specific arrangement, a torsion spring limiting portion 722 for limiting the torsion spring may be disposed on the second connecting member 120, and an insertion groove for inserting the second leg of the torsion spring is correspondingly disposed on the fixing member 300, so that the torsion spring is inserted into the insertion groove to achieve the limiting.

Of course, the limiting structures for limiting the first leg and the second leg of the elastic torsion element 400 may be respectively and separately formed on the fixing element 300 or the second connecting element 120, and the limiting structures may be limiting protrusions or the like.

When the handle lock in the embodiment is used, the acting force reaches the handle 200, because the handle 200 is connected with the fixed part 300, the rotating part 350 on the fixed part 300 is rotatably connected relative to the door body connecting assembly 100, and when the acting force reaches the handle 200, the fixed part 300 can be correspondingly driven to rotate downwards synchronously, so that the shaft sleeve 520 arranged in the hooking assembly 5000 below the fixed part 300 can be locked and fixed with the lock nose 600.

Meanwhile, in the process of rotating and pressing down the handle assembly, the fixing part 300 acts and acts on the elastic torsion part 400 to generate elastic torsion force on the elastic torsion part 400, so that the elastic torsion part 400 is twisted and deformed, after the hooking assembly 500 and the lock nose 600 are hooked and locked, the elastic torsion part 400 generates an upward reverse acting force to the fixing part 300 and the hooking assembly 500, the hooking assembly 500 correspondingly receives the downward reverse acting force of the lock nose 600 at the same time, and under the combined action of the two opposite acting forces of the elastic torsion part 400 and the lock nose 600, the door body can be always kept in a locked state.

When the lock needs to be unlocked, the handle 200 can be pulled outwards by a little force, so that the hooking component 500 on the handle 200 is separated from the lock nose 600, and the elastic torsion piece 400 is twisted and deformed during locking, so that after the acting force applied to the handle 200 is eliminated, the handle 200 can drive the door body to be automatically opened under the reverse elastic force action of the elastic torsion piece 400.

In this embodiment, the locking nose 600 and the hooking component 500 can be firmly locked and fixed by the cooperation of the locking nose 600 and the elastic torsion component 400.

In order to ensure that the door body can not automatically spring open after being under the action of external force and further enhance the locking and fixing firmness of the door body, the handle lock in the embodiment is also correspondingly provided with a bolt assembly 700.

A latch bolt assembly 700 mounted to the handle assembly, the latch bolt assembly 700 comprising: a latch tongue 720;

the bolt driving mechanism can drive the bolt 720 to move, so that the bolt 720 moves between a locking position abutting against the door body connecting assembly 100 and an unlocking position separated from the door body connecting assembly 100.

When using, the accessible spring bolt actuating mechanism drives the spring bolt 720 action for spring bolt 720 supports and leans on the latched position department that door body coupling assembling 100 corresponds, because door body coupling assembling 100 is for assembling on the door body, immovable, even have the exogenic action to exert on the handle subassembly, also can be because the locking of spring bolt 720 for the handle subassembly is not dragged away.

In some embodiments of the present application, the deadbolt actuation mechanism includes:

the lock core 710 is provided with a toggle part 711, and the toggle part 711 and the lock core 710 form an eccentric mechanism;

by providing the toggle part 711 and the key cylinder 710 as an eccentric mechanism, the key cylinder 710 can transmit a combined motion of rotation and up-and-down motion when rotating.

In some embodiments of the present application, the key cylinder 710 is configured to be cylindrical, the toggle part 711 is configured to be cylindrical, and the toggle part 711 and the key cylinder 710 are configured to be eccentric.

The dial part 711 may be provided in other shapes, instead of being provided in a cylindrical shape, only in a state where the center of the dial part 711 and the center of the key cylinder 710 are eccentric.

A key insertion portion is further disposed on the lock cylinder 710, and in some embodiments, the key insertion portion may correspond to an optional key insertion hole, which may be in a straight shape or other shapes, and the key insertion portion is configured to insert a key and to rotate the lock cylinder 710 by the key.

The lock tongue 720 is provided with a sliding part 721, the toggle part 711 is inserted into the sliding part 721, so that the transmission connection between the lock cylinder 710 and the lock tongue 720 can be realized, and when the lock cylinder 710 rotates, the power is transmitted to the lock tongue 720 through the sliding part 721 to enable the lock tongue 720 to move.

In some embodiments of the present application, the sliding portion 721 is a long groove formed on the latch tongue 720, and the toggle portion 711 is a toggle column inserted into the long hole and abutting against one of the sidewalls of the long groove.

The long groove can be set into a long groove with arc-shaped side surfaces at two ends, and the radius of the corresponding arc-shaped surface is the same as that of the poking column, so that the poking column can be abutted above the long groove.

When the lock core 710 rotates, the toggle part 711 is driven to slide relative to the sliding part 721, and the latch 720 is driven to move up and down.

The limit structure may at least limit the rotation of the latch 720 at the latch 720 and/or the fixing member 300. Through setting up limit structure, can guarantee to rotate spacingly to spring bolt 720 when lock core 710 drives toggle portion 711 and rotates, guarantee that spring bolt 720 only does and reciprocate.

When the lock is used, a key is correspondingly inserted into the key insertion part of the lock cylinder 710, the key is rotated to drive the lock cylinder 710 to rotate, the lock cylinder 710 rotates to drive the poking part 711 fixedly connected with the lock cylinder 710 to rotate, and the poking part 711 is inserted into the sliding part 721 and is eccentric relative to the lock cylinder 710, so that an acting force is applied to the lock tongue 720 during rotation, and the lock tongue 720 can perform composite motion formed by rotation and up-and-down movement.

At this time, the limiting structure limits the rotation of the latch 720, so that the latch 720 is driven by the toggle part 711 to move up and down relative to the fixed component 300.

To ensure that the toggle part 711 does not interfere with the up and down movement of the latch 720, the toggle part 711 is configured to slide relative to the sliding part 721, and the toggle part 711 slides back and forth along the sliding part 721 when the latch core 710 rotates.

In order to enable the latch tongue 720 to abut against the door body connecting assembly 100 to be limited after moving upwards, the latch tongue 720 is arranged below the inner side of the second connecting piece 120 during arrangement.

When the second connecting member 120 is rotated, the latch 720 moves upward, and after the latch is moved to the proper position, the latch abuts against the inner side wall of the second connecting member 120 to be limited.

Because second connecting piece 120 and first connecting piece 110 are connected, first connecting piece 110 and the door body are connected, and second connecting piece 120 position is then immovable, at this moment, even there is external force to apply to on the handle 200, also can't open the handle lock, has guaranteed the fastness of handle lock locking to and security and the reliability of use.

When the lock needs to be unlocked, the key can be rotated to drive the lock tongue 720 to rotate reversely so as to realize that the lock tongue 720 moves downwards, at the moment, the lock tongue 720 is separated from the second connecting piece 120 correspondingly, the limit of the lock tongue 720 is eliminated, and then the handle lock can be manually unlocked.

In some embodiments, the limit structure may limit not only the rotation of the latch tongue 720, but also the up and down movement of the latch tongue 720.

Specifically, the limiting structure can be arranged to include a limiting slide way and a limiting protrusion, the limiting slide way is arranged on the lock tongue 720 or the fixing part 300, and the limiting protrusion is inserted into the limiting slide way and arranged on the fixing part 300 or the lock tongue 720.

The limiting slide way can be arranged into a vertically arranged slide way, and the limiting bulge is inserted in the limiting slide way and slides up and down relative to the limiting slide way.

For example, a limiting protrusion may be provided on the latch 720, a limiting slide may be provided on the fixing member 300, and when the latch 720 rotates, the limiting protrusion and the limiting slide cooperate to limit the position thereof.

Similarly, when moving along the limiting slide way, the limiting protrusion can be limited by the limiting slide way when moving to the top of the limiting slide way, and when moving to the bottom, the limiting protrusion can be limited by the bottom of the limiting slide way, so that the upper and lower limiting of the lock tongue 720 can be realized.

Of course, the position-limiting protrusion and the position-limiting slide may be reversely provided on the latch tongue 720 and the fixing member 300.

In other embodiments of the present application, the limiting structure is configured to include:

and a first limit structure disposed on the latch tongue 720 or the fixing member 300 for limiting the rotation of the latch tongue 720.

The first limit structure is arranged to form first limit parts 722 at two sides of the bolt 720, an accommodating space is formed between the bolt 720 and the first limit parts 722 at two sides thereof, the fixing component 300 is assembled in the accommodating space, and the first limit parts 722 are attached to two side walls of the fixing component 300.

The first position-limiting portion 722 is a position-limiting plate in some preferred embodiments, and when the position-limiting plate is arranged, the length of the position-limiting plate is higher than the height of the lock tongue 720, and the position-limiting plate is located on one side surface of the lock tongue 720.

When the latch 720 rotates, the first position-limiting portion is limited by the two sidewalls of the fixing member 300, preventing the rotation thereof.

The first limiting structure can also be arranged to be a folded part formed at two sides of the fixed part 300, a space is formed between the folded part and the fixed part 300, the bolt 720 is positioned in the space, and the folded part is attached to two side walls of the bolt 720.

Similarly, when the latch 720 rotates, the folded portion abuts against two sidewalls of the latch 720 to limit the latch.

And a second limit structure, which is disposed on the latch tongue 720 and/or the fixing member 300, and is used for limiting the up-and-down movement position of the latch tongue 720.

The second limit structure comprises: the second bending limiting part 321 is formed above the fixing member 300, and the third bending limiting part 331 is formed below the fixing member 300, and the second bending limiting part 321 and the second bending limiting part 331 respectively limit the upward movement position and the downward movement position of the latch 720.

The second limit structure can also be set to be that a second limit protruding part is arranged on the lock tongue 720, a third limit protruding part is arranged on the fixed part 300, 2 limit protruding parts are respectively arranged above and below the fixed part 300 and the lock tongue 720, and therefore the vertical movement position of the lock tongue 720 is limited.

After the latch tongue 720 moves up and down, in order to ensure that the latch tongue 720 is kept at the position where the latch tongue 720 is moved and does not fall off, a locking and positioning assembly 800 is further provided in the embodiment, and is connected between the handle 200 and the latch tongue 720 and used for locking and positioning the latch tongue 720.

The locking and positioning assembly 800 comprises:

and a plurality of positioning parts 810 provided on the latch 720, and arranged along the height direction of the latch 720.

The positioning portion 810 is a positioning groove disposed on the locking tongue 720, and the positioning groove may be a hemispherical groove, or an arc-shaped groove structure with an arc-shaped inner side surface.

And a positioning member 820 having a smooth curved surface at an end thereof, wherein the positioning member 820 is fitted into at least one of the positioning parts 810.

Preferably, the end of the positioning member 820 is a ball head, and the ball head of the positioning member 820 is inserted into one of the positioning slots to position the latch 720.

And two ends of the elastic connecting member 830 are respectively connected and fixed with the handle 200 and the positioning member 820.

In some preferred embodiments, the resilient connector 830 is a spring.

When the latch 720 moves up and down, the positioning part 810 moves up and down together with the latch 720, the positioning part 820 moves into another positioning part 810 from the positioning part 810 at one height position relatively, and the elastic connecting part 830 can provide corresponding elastic deformation, so that the positioning part 820 can be compressed or extended to be separated from the positioning part 810 or enter the positioning part 810 to position the latch 720. The positioning member 820 can be snapped into one of the positioning portions 810 to position the latch 720 when the latch 720 is moved in place.

If the latch tongue 720 moves upward to abut against the second connecting member 120, the positioning member 820 is clamped into the positioning portion 810 corresponding to the position of the latch tongue 720, so as to abut against and position the latch tongue 720, and prevent the latch tongue 720 from falling.

Handle lock in this embodiment locks fixedly through handle subassembly and lock nose 600, and spring bolt 720 and door body coupling assembling 100 support to lean on fixedly to further lock, have realized locking fixed more firmly to the double-lock between the door body and the cabinet body.

Example 2:

in the present embodiment, which proposes an embodiment of a handle lock, a handle 200 is provided to include a handle grip portion 210 and handle coupling portions 220 at both ends of the handle grip portion 210, and a fitting cavity 230 for fitting the handle 200 is formed in the handle coupling portions 220.

In order to ensure the firmness of locking and fixing between the door body and the cabinet body, when the door body and the cabinet body are arranged, the fixing parts 300 are arranged in the assembling cavities 230 at the two sides of the handle gripping part 210.

The corresponding position of each fixed part 3000 sets up door body coupling assembling 100, and door body coupling assembling 100 is corresponding to be connected on the door body.

One end of each fixed part 300 all is provided with rotates piece 350, rotates that piece 350 corresponds and the rotation of door body coupling assembling 100 is connected, also corresponds at the other end of each fixed part 300 and is provided with and colludes a subassembly 500, sets up 2 and colludes a subassembly 500 complex lock nose 600, and lock nose 600 fixed connection has the interval between 2 lock noses 600 on the cabinet body.

Elastic torsion pieces 400 are correspondingly arranged between the fixed part 300 and the door body connecting assembly 100.

The latch bolt assembly 700 is provided in a set, and is mounted on the fixing part 300 at one end of the handle 200.

When the lock is closed, the handle 200 is pressed downwards by holding the handle grip 210 at the middle position, and the handle 200 is hooked to the lock noses 600 at the corresponding positions by the hooking components 500 connected and fixed to the two ends of the handle 200 after being pressed downwards.

Further, a key is inserted to rotate the lock cylinder 710, so that the lock cylinder drives the lock tongue 720 to move upwards and abut against the door body connecting assembly 100, and locking is achieved.

Because the fixing parts 300 at the two ends of the handle 200 are assembled on the handle 200, when the handle 200 is wholly limited, the other end of the handle cannot be opened, and the locking between the door body and the cabinet body is ensured.

For easy grasping, the handle 200 is provided in a U-shape in the present embodiment.

The handle lock in this embodiment is provided with 2 sets of lock noses 600 and colludes and hang subassembly 500 for it is more firm to lock between the door body and the cabinet body.

Example 3:

the embodiment of the low temperature cabinet provided in this embodiment includes: the cabinet body, the internal low temperature storage space that is formed with of cabinet for realize low temperature storage.

The door body is connected to the cabinet body and can be opened or closed relative to the cabinet body.

The low-temperature cabinet also comprises the handle lock in the first embodiment.

The handle lock is assembled on the door body and the cabinet body, and particularly, the door body connecting assembly 100 of the handle lock is fixedly connected with the door body.

Be provided with on the cabinet body and pass the position control piece 920 of lock nose 600 be provided with the gliding slide adjusting part 610 of relative position control piece 920 on the lock nose 600, when lock nose 600 slides and targets in place, position control piece 920 presses and establishes lock nose 600 is last right lock nose 600 fixes a position.

The sliding adjusting part 610 is an adjusting long hole 610 formed on the lock nose 600, and the position adjusting part 920 is a locking bolt which can pass through the adjusting long hole 610 and then be locked and fixed in the cabinet body. When needs are to lock nose 600 position adjustment, can loosen position control piece 920 soon, then remove lock nose 600, make its relative position control piece 920 slide, carry out position control, adjust the back that targets in place, screw position control piece 920, compress tightly fixed can with lock nose 600.

Through the position of adjusting lock nose 600, the corresponding realization to the adjustment of the pressfitting degree between the door body and the cabinet body. If, lock nose 600 removes the back to the counter mouth direction of keeping away from the cabinet body, can make when locking, and the pressfitting degree is big between the door body and the cabinet body, and locking is fixed more firmly.

After lock nose 600 removed to the counter mouth direction that is close to the cabinet body, the pressfitting degree that can make the door body and the cabinet body is little, and locking fastness worsens.

Through adjusting lock nose 600 position for can keep firm locking between the door body and the cabinet body, the effectual air conditioning of avoiding in the low temperature cabinet leaks the problem outward, has strengthened the leakproofness of whole low temperature cabinet.

The low temperature cabinet in this embodiment is further provided with a lock nose adjusting piece 910, which is located between the cabinet body and the lock nose 600 and assembled on the cabinet body, wherein the lock nose adjusting piece 910 is provided with a thread locking portion 911, and the thread locking portion 911 is a threaded hole.

The position adjusting member 920 also passes through a threaded hole on the lock nose adjusting member 910, and the position adjusting member 920 is simultaneously screwed in the lock nose adjusting member 910 and the cabinet body.

When the lock nose 600 is adjusted to the right position, the position adjusting member 920 is pressed on the lock nose 600 and simultaneously presses and fixes the lock nose adjusting member 910.

In order to ensure the firmness of the connection and fixation of the lock nose 600 and the lock nose adjusting piece 910, the low-temperature cabinet in this embodiment further comprises:

a positioning structure formed between the lock nose 600 and the lock nose adjusting member 910, the positioning structure comprising:

the first positioning protrusions 930 are formed on the locking nose 600, and a plurality of first insertion portions 940 are formed between the adjacent first positioning protrusions 930.

A plurality of second positioning protrusions 950 formed on the locking nose adjusting member 910, and a second insertion portion 960 formed between adjacent second positioning protrusions 950.

When the locking nose 600 is adjusted to the right position, the first positioning protrusion 930 is inserted into the second insertion portion 960, the second positioning protrusion 950 is inserted into the first insertion portion 940, and locking and fixing are achieved by inserting two positioning protrusions into each other.

The first positioning protrusions 930 are corresponding to first positioning teeth, and the first insertion portions 940 correspondingly formed between 2 first positioning teeth are first insertion grooves.

The second positioning protrusion 950 is a second insertion groove correspondingly, the second insertion portion 960 is a second insertion groove correspondingly formed between 2 second positioning teeth, after the adjustment in place, the plurality of first insertion grooves and the second positioning teeth can be inserted into each other, and the plurality of first positioning teeth and the second insertion grooves are inserted into each other, so that the locking between the lock nose 600 and the lock nose adjusting piece 910 is realized.

The locating structure in this embodiment can fix a position the lock nose 600 of adjusting to arbitrary position department through a plurality of location teeth and a plurality of cartridge groove complex mode, and the commonality is strong.

For the fastness of locking between the further reinforcing door body and the cabinet body lock nose 600 with still be provided with the first portion of establishing and the second portion of establishing of hanging that is used for passing the padlock on the second connecting portion 330 respectively and establish the portion, the first portion of establishing of hanging, second are hung and are established the portion and prefer to hang and establish the hole, when fixed, pass two with the padlock and hang and establish the hole can.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A handle lock comprising:

door body coupling assembling, its characterized in that still including:

the handle assembly is rotatably connected to the door body connecting assembly and can rotate relative to the door body connecting assembly;

a locking nose capable of cooperating with the handle assembly to lock the handle assembly when the handle assembly is rotated into position;

the elastic torsion piece is connected between the door body connecting assembly and the handle assembly, so that after the handle assembly and the lock nose are unlocked, acting force is applied to the handle assembly to reset the handle assembly;

the spring bolt subassembly, the assembly is in on the handle subassembly, the spring bolt subassembly is including:

a latch bolt;

the lock tongue driving mechanism can drive the lock tongue to act, so that the lock tongue moves between a locking position abutting against the door body connecting assembly and an unlocking position separated from the door body connecting assembly.

2. The handle lock of claim 1,

door body coupling assembling including:

the first connecting piece is provided with a first mounting part used for being connected with the door body;

a second connector slidably mounted on the first connector.

3. The handle lock of claim 2, wherein the handle assembly comprises:

a handle having a fitting cavity formed therein;

and the fixed part is assembled in the assembly cavity, is rotatably connected with one end of the second connecting piece through a rotating piece, and is provided with a hooking component matched with the lock nose at the other end of the second connecting piece.

4. The handle lock of claim 3, wherein the fixing member includes a first connecting portion provided at one end thereof and a second connecting portion provided at the other end thereof, the rotating member being fitted on the first connecting portion, and the hooking member being fitted on the second connecting portion.

5. The handle lock of claim 4, wherein the hooking member comprises:

a hooking rod assembled on the first connection part;

6. The handle lock of claim 2, wherein the resilient torsion member is sleeved on the rotary member and has both ends abutting against the fixed member and the second connecting member, respectively.

7. The handle lock of claim 1, wherein the deadbolt actuation mechanism comprises

a sliding part is arranged on the bolt, and the shifting part is inserted into the sliding part;

when the lock cylinder rotates, the shifting part is driven to slide relative to the sliding part, and the lock tongue is driven to move up and down through the shifting part;

and the limiting structure is formed on the bolt and/or the fixed part and at least can limit the rotation of the bolt.

8. The handle lock of claim 6, wherein the retaining structure comprises:

9. The handle lock of claim 8, further comprising:

the positioning piece can be clamped into one of the positioning parts to position the lock bolt when the lock bolt moves in place.

10. A cryogenic cabinet comprising: a cabinet body;

the handle lock is characterized by further comprising the handle lock according to any one of claims 1 to 9, the door body connecting assembly is fixedly connected with the door body, a position adjusting piece penetrating through the lock nose is arranged on the cabinet body, a sliding adjusting part capable of sliding relative to the position adjusting piece is arranged on the lock nose, and when the lock nose slides in place, the position adjusting piece is pressed on the lock nose to position the lock nose.

11. The cryogenic cabinet of claim 10, further comprising: the lock nose adjusting piece is positioned between the lock nose and the cabinet body and assembled on the cabinet body;

when the lock nose is adjusted in place, the lock nose is inserted and matched with the second inserting part through the first positioning protrusion, and the first inserting part is inserted and matched with the second positioning protrusion to be locked and fixed with the lock nose adjusting piece.