CN107956328B

CN107956328B - Lock catch mechanism, lock body and application of lock catch mechanism and lock body in kitchen equipment

Info

Publication number: CN107956328B
Application number: CN201711340615.9A
Authority: CN
Inventors: 武志祥; 许正华
Original assignee: ANHUI HUALING KITCHEN EQUIPMENT CO LTD
Current assignee: ANHUI HUALING KITCHEN EQUIPMENT CO LTD
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2023-02-24
Anticipated expiration: 2037-12-14
Also published as: CN107956328A

Abstract

The invention discloses a lock catch mechanism, a lock body and application of the lock body in kitchen equipment, and belongs to the field of locks. The lock body buckle of the lock catch mechanism comprises a base and a lock catch, wherein the base is used for installation and fixation, the top of a base plate of the lock catch is connected with a contact, and the top surface and at least one side surface of the contact are obliquely arranged; the bottom surface of the contact is provided with a bayonet; the lock body rod comprises a lock rod fixing seat and a lock rod shaft arranged between two support legs of the lock rod fixing seat; when the locking is carried out, the locking rod shaft extrudes the top surface of the contact, and the lock body buckle or the lock body rod can deflect and return to enable the locking rod shaft to be clamped into the bayonet; the structure can be combined with a handle and applied to kitchen equipment by rotating a lock body buckle or a lock body rod to enable the lock body rod to be separated from a bayonet along the inclined surface of the side part of a contact. The steam cabinet is convenient to lock and unlock, can meet the safety requirement, and can ensure better sealing when being applied to the steam cabinet.

Description

Lock catch mechanism, lock body and application of lock catch mechanism and lock body in kitchen equipment

Technical Field

The invention relates to the technical field of locks, in particular to a locking mechanism, a lock body and application of the locking mechanism and the lock body in kitchen equipment.

Background

The steam cabinet is one of the common kitchen utensils for steaming, and the steam cabinet needs to be sealed in order to ensure that enough pressure exists in the steam cabinet, namely certain sealing conditions need to be achieved in the steam cabinet after a cabinet door is closed, so that the requirements on a locking mechanism of the steam cabinet are strict. In addition, if the door of the steam cabinet can not meet the better locking requirement, in the using process, the door of the steam cabinet is easy to be exploded due to larger internal pressure, and certain potential safety hazard exists.

At present, the compressing and sealing structure adopted on the traditional steam cabinet is a hand wheel spiral pressure plate sealing structure, after the cabinet door is closed, the inside lock head blocks the lock groove on the cabinet body by rotating the handle, and the handle is reversely driven when the cabinet door is opened. Because the bottom of the hand wheel is in plane contact with the pressure plate, the friction resistance is very large, time and labor are wasted, and the use is inconvenient.

As a technical improvement, some enterprises adopt mechanical link mechanisms to realize locking at present. The disclosed locking device for the cabinet door of the steam cabinet (application number: 200920289730.2) comprises a retaining ring, a door buckle base fixed on the cabinet door and a pressing handle connected with the door buckle base through a rotating shaft, wherein the retaining ring is connected with the pressing handle through an adjusting device capable of adjusting the extension length of the retaining ring. Locking device in this scheme is adjustable, and when the sealed cushion between cabinet door and the cabinet body is ageing, can adjust through adjusting device and compress tightly the degree, ensures to seal well. This scheme utilizes link mechanism's characteristic to realize the locking of the cabinet body and seals, need exert great power at the auto-lock point, and is comparatively hard during the operation, and wearing and tearing are serious moreover, and life is shorter.

In addition, a patent scheme (application number: 201621395412.0) discloses a steam cabinet lock, which comprises a base, wherein two groups of parallel supporting plates are arranged above the base, the bottoms of the supporting plates are welded with the base, a moving block, a contact and a connecting plate positioned between the moving block and the contact are arranged on the supporting plates, the front end of the contact is in an upward-tilting arc shape, a reset spring is arranged below the moving block, the contact consists of a contact clamping part with two parallel sides and a contact interlayer overlapped in the middle, the moving block consists of a moving block clamping part with two parallel sides and a moving block interlayer overlapped in the middle, the interlayers and interlayers in the contact and the moving block, and the interlayers and the clamping parts are fixedly connected, and the connecting plate is welded into an integrated structure by the overlapped connecting plate interlayer. This patent scheme utilizes link mechanism's locking characteristic to realize the locking of the cabinet body sealed equally, though can reach the effect that resets, but there is certain safe risk in the setting of its contact.

Disclosure of Invention

1. Technical problems to be solved by the invention

The invention aims to overcome the defect that the lock catch is not easy to operate in the prior art, and provides a lock catch mechanism which is convenient to lock and unlock and can meet the safety requirement;

the utility model provides a lock body simultaneously, the operation that opens and shuts can be better realized to handle and return spring in this lock body, uses it in kitchen equipment, can guarantee better leakproofness.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention provides a latch mechanism, comprising: the lock body buckle comprises a base and a buckle, wherein the base is used for installation and fixation, the top of a base plate of the buckle is connected with a contact, and the top surface and at least one side surface of the contact are obliquely arranged or the contact is in a conical shape; the bottom surface of the contact is provided with a bayonet;

the lock body rod comprises a lock rod fixing seat and a lock rod shaft arranged between two support legs of the lock rod fixing seat;

when the lock is clamped, the lock rod shaft presses the top surface of the contact, and the lock body buckle or the lock body rod can deflect and return to enable the lock rod shaft to be clamped into the bayonet; the lock body buckle or the lock body rod is rotated to enable the lock body rod to be separated from the bayonet along the inclined surface of the side part of the contact.

As a further improvement of the invention, the bottom of the substrate is provided with a limiting seat for limiting the posture of the substrate; the base plate is hinged with the base, the hinge shaft lever is provided with a locking spring, and the locking spring is propped against the base plate and can enable the base plate to return after deflection.

As a further improvement of the invention, the lock rod shaft is sleeved with a rotatable lock rod rotating sleeve.

As a further development of the invention, the lock lever can be rotated with its axis of rotation offset from the middle section of the contact and close to the side bevel of the contact, which bevel is used to disengage the lock lever shaft from the bayonet.

As a further development of the invention, it comprises a handle and a latching mechanism as claimed in any one of claims 1 to 5, the latch or latch rod being mounted on the handle.

As a further improvement of the invention, the handle comprises a handle, a return spring and an adapter plate, the fixed seat is arranged on the adapter plate, and the adapter plate is driven by the handle to rotate; the return spring can enable the adapter plate to restore to the initial position.

As a further improvement of the invention, the transfer disc is connected with the handle seat through a transmission disc, one side of the transmission disc, which faces the transfer disc, is provided with a transmission baffle, and the transmission baffle is clamped with the protrusion on the transfer disc; the return spring is sleeved on the periphery of a cylinder formed by matching the transmission baffle and the bulge.

As a further improvement of the invention, the transmission disc is sleeved in the sleeve, the return spring is compressed between the rotating disc body and the retaining ring at the end part of the sleeve, and a spring clamping groove is arranged on a limiting baffle of the transmission disc; the adapter plate is limited to rotate in the end cover.

As a further improvement of the invention, the lock body is applied to a steam cabinet, a pressure cooker or a steam oven.

As a further improvement of the invention, a door plate lock hole is arranged on a door plate of the kitchen equipment, the lock body rod is positioned in the door plate lock hole, and the lock body buckle is positioned at the corresponding position of the equipment body.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) According to the latch mechanism, the top surface and at least one side surface of the contact are inclined surfaces or are directly set to be in a conical structure, when the latch mechanism is clamped, the lock rod shaft can press the top surface of the contact, the top surface and the side surface are automatically staggered, and the lock rod shaft is clamped into the bayonet; when the locking mechanism needs to be opened, one element is driven to enable the locking rod shaft to be matched with the side inclined plane of the contact, so that the locking mechanism can be opened, and the locking and opening operations are simple; because the lock rod shaft is directly clamped with the bayonet on the bottom surface of the contact, the lock rod is not easy to disengage, and the safety performance is high.

(2) According to the latch mechanism, the latch body serves as the swinging return part, the latch body rod serves as the rotatable part, and the rotating lock rod shaft is easier to open the latch relative to the rotating lock body; the rotatable lock rod rotating sleeve is sleeved on the lock rod shaft, sliding friction can be converted into rotating friction when the lock rod rotating sleeve is contacted with the contact, and due to the reduction of friction, operation resistance is greatly reduced, so that the service life is prolonged.

(3) According to the lock body, the lock body buckle or the lock body rod is arranged on the handle, and the installed part can be driven to rotate through the handle, so that the rotating operation during unlocking is realized; in addition, connect through the switching dish, multiplicable structural strength is convenient for use in the installation of specific application simultaneously.

(4) According to the lock body, the transmission disc is sleeved in the sleeve, the adapter disc is limited to rotate in the end cover, the transmission disc and the adapter disc can rotate coaxially, and meanwhile, the rotation limiting and the rebound resetting are facilitated to be realized. The lock body is applied to kitchen equipment, such as a steam cabinet and a steam oven equipment, and automatic locking can be realized by forcibly pressing the door plate; the door plate can be opened by rotating the handle, and the door plate is greatly improved compared with the traditional equipment and is suitable for popularization and use.

Drawings

FIG. 1 is a schematic view of a locking mechanism;

FIG. 2 is a side view of the lock body shackle;

figure 3 is a cross-sectional schematic view of the lock body shackle;

FIG. 4 is an exploded view of the lock body;

FIG. 5 is a schematic structural view of a transmission disc;

FIG. 6 is a schematic structural view of the transmission disc;

fig. 7 is a schematic view of a connection structure of the adapter plate;

fig. 8 is a schematic view of the installation structure of the lock body and the door panel.

The reference numerals in the schematic drawings illustrate: 1. a lock body buckle; 11. a base; 111. an ear mount; 112. a shaft lever; 12. a locking spring; 13. locking; 131. a contact; 132. a bayonet; 133. a substrate; 134. a limiting seat; 135. a process sloping plate; 2. a lock body lever; 21. a lock rod fixing seat; 22. a lock lever leg; 23. a lock cylinder shaft; 24. a lock rod rotating sleeve; 3. a handle; 31. a handle; 311. a handle seat; 32. a drive plate; 321. rotating the disc body; 322. a limit baffle; 323. a transmission baffle; 324. a spring clamp slot; 325. a transmission rib plate; 33. a sleeve; 34. a return spring; 35. an end cap; 36. a switching disk; 361. a transmission section; 362. a connecting portion; 37. fixing the bolt; 41. a door panel; 42. the door panel is provided with a lock hole.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Referring to fig. 1, a latch mechanism of the present embodiment includes: the lock body buckle 1 and the lock body rod 2 can be locked with each other. The lock catch 1 comprises a base 11 and a catch 13, wherein the base 11 is used for installation and fixation, a contact 131 is connected to the top of a base plate 133 of the catch 13, the top surface and one side surface of the contact 131 are obliquely arranged, and a bayonet 132 is arranged on the bottom surface of the contact 131. The lock body rod 2 comprises a lock rod fixing seat 21 and a lock rod shaft 23 arranged between two support legs of the lock rod fixing seat 21, when clamping is carried out, the lock rod shaft 23 presses the top surface of the contact 131, the lock body buckle 1 can deflect to return, and the lock rod shaft 23 is clamped into the bayonet 132; by rotating the lock body shackle 1 or the lock body lever 2, the lock lever shaft 23 is disengaged from the bayonet 132 along the side slope of the contact 131.

Specifically, referring to fig. 2 and 3, the lock body buckle 1 is used as a swingable return member in the present embodiment. The two ends of the bottom plate of the base 11 are provided with countersunk holes for fixing the base 11 on the equipment. Two ear seats 111 are arranged on the base 11 in parallel, the base plate 133 is hinged with the base 11, and the base plate 133 is arranged on the two ear seats 111 through a shaft rod 112. The shaft lever 112 is provided with a locking spring 12, and two ends of the locking spring 12 are wound on the shaft lever 112 and abut against the base 11; the middle section of the locking spring 12 abuts against the back surface of the substrate 133, so that the substrate 133 has a tendency to move in the direction of the contact. The bottom of the substrate 133 is provided with a limiting seat 134 for limiting the posture of the substrate 133.

When the stopper 134 at the bottom of the base plate 133 is engaged with the base 11, it can be used as an initial position posture, and the base plate 133 can always keep the initial position posture by abutting against the back surface of the base plate 133 with the lock spring 12. The connection part of the base plate 133 and the limiting seat 134 is provided with a process inclined plate 135, that is, an inclined surface is arranged on the base plate 133, or the base plate 133 is in an arc structure, so that the base plate 133 can rotate relative to the base 11.

In use, the shaft 112 moves forward to contact with the top slope of the contact 131, and as the shaft 112 continues to move, under its action, the base plate 133 swings back against the spring force; when the shaft 112 contacts the bottom surface of the contact 131, the base plate 133 swings back due to the resilient force provided by the locking spring 12, automatically snapping the shaft 112 into the bayonet 132.

Referring to fig. 2, in order to optimize the structure and prolong the service life of the mechanism, a spring slot is formed on the back side of the substrate 133, and the middle section of the locking spring 12 is located in the spring slot. The side of the bayonet 132 close to the base plate 133 should have a sufficient curvature to ensure the distance between it and the locking spring 12, so as to prevent the locking rod fixing seat 21 or the locking rod shaft 23 from contacting and rubbing with the locking spring 12 when the component is rotated to unlock.

Further, the base 11 and the substrate 133 may be fixedly connected. One end of the lock rod fixing seat 21 is hinged with the fixing table, and the spring is used for realizing the swinging return function. The other end of the lock rod fixing seat 21 is fixedly connected with the lock rod support leg 22. The two locking lever legs 22 are symmetrically arranged to form a Y-shaped structure, and the locking lever shaft 23 is installed between the two locking lever legs 22. Since the locking lever fixing base 21 can swing back, the shaft 112 can be automatically snapped into the bayonet 132 when the locking lever fixing base is engaged with the contact 131.

The lock bar shaft 23 of this embodiment is sleeved with a rotatable lock bar turn sleeve 24, the lock bar turn sleeve 24 can rotate relative to the lock bar shaft 23, and when contacting with the contact 131, sliding friction can be changed into rolling friction through the lock bar turn sleeve 24, so that friction force can be reduced to a greater extent, which is beneficial to the engagement and separation between the lock buckle 1 and the lock bar 2.

In the embodiment, one side of the contact 131 is obliquely arranged, and the contact and the top inclined surface are in round transition, and by rotating the lock body buckle 1 or the lock body rod 2, the lock rod rotary sleeve 24 is matched with the side inclined surface, so that the lock rod rotary sleeve 24 can be separated from the bayonet 132.

Preferably, two inclined planes of the contact 131 may be both inclined planes, and a portion between the bottom surface of the contact 131 and the bayonet 132 is a planar structure, so that the lock body buckle 1 and the lock body rod 2 can be opened by rotating the components in two directions. When normal use, for the convenience of operation, mostly only limit the rotation of a direction, but different equipment places the position differently to and the difference of setting up the position of its lock body, all can need to detain the direction of rotation of 1 or lock body pole 2 to the lock body and adjust. In the embodiment, the contact 131 is provided with two side inclined planes, so that different use requirements can be met, and the standardized processing of products is facilitated.

In addition, the contact 131 may be provided in a tapered structure, and the bottom surface of the contact 131 may be still flat, which may be formed by cutting a portion of the rim material from the contact 131. The contact 131 with a conical structure still has the top surface and the side surface both of which are inclined surface structures, and does not influence the clamping locking and rotating unlocking operation.

It should be noted that, in order to facilitate the unlocking operation, when the lock body lever 2 is used as a rotating member, the rotating shaft is deviated from the middle section of the contact 131 and is close to the side inclined surface of the contact 131. The rotation axis of the present embodiment is the rotation center axis of the lock body lever 2, which is deviated from the middle section of the contact 131. If the central axis is located on the middle section of the contact 131, after the lock rod shaft 23 rotates a certain angle, the corresponding part of the rotating central axis is still located on the same plane as the sharp corner part of the contact 131, the lock rod shaft 23 is blocked by the end of the contact 131, and from the mechanical angle analysis, a stressed dead angle is formed, so that the lock rod rotary sleeve 24 cannot be separated from the bottom surface of the contact 131. Of course, when in use, the sharp corner of the end of the contact 131 is set to be in a circular arc transition structure, or the size difference between the sharp corner of the end and the locking bar rotary sleeve 24 is large, so that the locking bar rotary sleeve 24 can be separated from the bottom surface of the contact 131 by applying a certain pulling force. However, as a more optimized design, the lock rod rotating sleeve 24 can directly slide to one side of the inclined plane after rotating through the deviation arrangement of the rotating shaft, and the lock rod rotating sleeve 24 is separated from the bayonet 132.

Referring to fig. 4, the lock of the present embodiment includes a handle 3 and the above-mentioned locking mechanism, and the lock shackle 1 or the lock rod 2 is mounted on the handle 3. The handle 3 enables a rotational operation of the lock catch 1 or the lock lever 2. Preferably, the present embodiment connects the lock body lever 2 with the handle 3.

Specifically, the handle 3 mainly includes a handle 31, a return spring 34 and an adapter plate 36, the fixing base 21 is mounted on the adapter plate 36, the other end of the adapter plate 36 is connected with the handle 31, and the adapter plate 36 can be driven by the handle 31 to rotate synchronously. The return spring 34 is provided to restore the adapter plate 36 to the initial position, and after the unlocking operation, the return spring can automatically return to be in a state of being capable of being locked again.

Further, for the convenience of installation and use, and considering the structural stability, the end of the handle 31 is provided with a handle seat 311, the center of the handle seat 311 is provided with a mounting hole, and the adapter plate 36 is connected with the handle seat 311 through the transmission plate 32.

Referring to fig. 5 and 6, a slot is formed in the bottom surface of the mounting hole of the handle holder 311, a transmission rib 325 is formed on one side, facing the bottom surface of the mounting hole, of the rotation disc body 321 of the transmission disc 32, the transmission rib 325 is clamped into the slot of the handle holder 311, a transmission baffle 323 is formed on one side, facing the adapter disc 36, of the rotation disc body 321, the two transmission baffles 323 are symmetrically arranged, two symmetrical protrusions are correspondingly formed on the adapter disc 36, and the transmission baffle 323 and the protrusions are clamped into a cylinder in a staggered manner to transmit rotation torque. The return spring 34 is sleeved on the periphery of a cylinder formed by the transmission baffle 323 and the protrusion in a matching manner, one end of the return spring 34 abuts against the external fixed part, and the other end abuts against the transmission disc 32 or the adapter disc 36, so that the rotating part can automatically return.

Referring to fig. 7, the adaptor plate 36 of the present embodiment includes a transmission portion 361 and a connection portion 362, the transmission portion 361 is used for matching with the transmission plate 32, and the connection portion 362 is used for connecting the locking rod fixing seat 21. The connecting portion 362 may be a rectangular structure with an opening at one side, and the locking rod fixing seat 21 also has three side walls attached to the connecting portion 362, so as to be able to transmit a large torque. A screw rod can be used to sequentially pass through the adapter plate 36 and the circular hole in the middle of the transmission plate 32 to be fixed in the mounting hole of the handle seat 311. When the handle holder 311, the adapter plate 36 or the transmission plate 32 are rotatably connected in a sleeve, and the sleeve is used for being fixed with an external door panel, so that the handle 31 can be rotated relative to the sleeve.

Preferably, the transmission plate 32 is sleeved in the sleeve 33, a stop ring is arranged at one end of the sleeve 33 far away from the rotating plate 321, the stop ring and the sleeve 33 can be of an integral structure, the inner diameter of the stop ring is smaller than the inner diameter of the sleeve 33, and the protrusion on the transmission part 361 is inserted into the sleeve 33 from the inner hole of the stop ring. The return spring 34 is compressed between the rotating disc 321 and the end stop ring of the sleeve 33.

The rotating disc 321 of this embodiment is further provided with a limiting baffle 322, the limiting baffle 322 and the transmission baffle 323 are located on the same side, and are symmetrically distributed, and the length of the limiting baffle 322 is greater than that of the transmission baffle 323, so as to provide a certain space for the return spring 34. The root of the limit baffle 322 is provided with a disc protrusion, the diameter of the disc is smaller than that of the rotating disc body 321, and the disc can be matched with the inner wall of the sleeve 33. A spring slot 324 may be formed on the limit stop 322, and the movable end of the return spring 34 is engaged with the spring slot 324. A limiting block can be arranged in the sleeve 33 according to requirements to limit the maximum rotation range of the transmission disc 32, and the structure of the rotation range is not particularly limited as long as the rotation range can meet the separation condition of the locking bar rotary sleeve 24 and the contact.

The adapter 36 of the present embodiment is restricted to rotate in the end cap 35, and the end cap 35 is similar to the sleeve 33 in structure and is an integral structure, and the end cover plate and the cylinder may be two separate parts. A disk is arranged between the transmission part 361 and the connection part 362 of the adapter plate 36, and the disk is matched with the inner cavity of the end cover 35 and used for limiting the rotation center of the adapter plate 36.

In addition, the diameter of the disk on the adapter plate 36 is greater than the inner diameter of the end stop ring of the sleeve 33, and the disk, in cooperation with the limit stop 322, can limit the axial movement of the rotating portion. More preferably, the inner wall of the baffle ring at the end of the sleeve 33 can be set to be a slope structure with a small inside and a large outside, that is, the size is gradually increased from inside to outside, and the transmission part 361 and the connection part 362 of the adapter plate 36 are in transition connection through a slope ring, so that the slope ring can be matched with the inner diameter of the baffle ring, and the axial movement of the rotating part is better limited. The end cap 35 is provided with a through bolt hole, the sleeve 33 is correspondingly provided with a threaded hole, and the end cap 35 and the sleeve 33 can be fixed on the door panel through a fixing bolt 37.

The lock body can be applied to kitchen equipment, such as a steam cabinet, a pressure cooker or a steam oven, and can be used as a locking part of a door plate and a box body.

Referring to fig. 8, in this embodiment, the lock body is applied to a steam cabinet, a door plate lock hole 42 is formed in a door plate 41 of the steam cabinet, the adapter plate 36 and the transmission plate 32 are pressed and locked in a mounting hole of the handle seat 311 by a central screw rod,

the lock body rod 2 is positioned in the door panel lock hole 42, and the lock body buckle 1 is positioned at the corresponding position of the equipment body. The fixing bolt 37 fixes the end cover 35 and the sleeve 33 on the end side wall of the door lock hole 42, the sleeve 33 is also positioned in the mounting hole of the handle seat 311 after installation, the end cover 35 partially protrudes out of the end surface of the handle seat 311, the handle 31 is positioned outside the door 41, and the lock body rod 2 is positioned in the door lock hole 42. The base 11 is installed at a corresponding position on the cabinet body of the steam cabinet, after the door panel 41 is closed, the lock catch 13 is inserted into the door panel lock hole 42 to be clamped with the lock body rod 2, and the elastic sealing part on the door panel 41 can be matched with the cabinet body, so that a better sealing effect is achieved. When the door plate 41 needs to be opened, the handle 31 is rotated, the locking rod rotating sleeve 24 is separated from the bottom surface of the contact 131 and is matched with the inclined surface of the contact 131, the door plate 41 can be opened, the operation is simple, and the locking structure is safe and reliable.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, without departing from the spirit of the present invention, a person of ordinary skill in the art should understand that the present invention shall not be limited to the embodiments and the similar structural modes without creative design.

Claims

1. A latch mechanism, its characterized in that: the method comprises the following steps:

the lock body buckle (1), the lock body buckle (1) is made up of base (11) and lock catch (13), the base (11) is used for installing and fixing, the top of base plate (133) of the lock catch (13) is connected with the contact (131), the top surface and at least one side of the contact (131) are set up obliquely, or the contact (131) is set up as the toper; the end part of the contact (131) is a sharp corner, the sharp corner of the end part of the contact (131) is set to be in an arc transition structure, and the bottom surface of the contact (131) is provided with a bayonet (132);

the lock body rod (2) comprises a lock rod fixing seat (21) and a lock rod shaft (23) arranged between two support legs of the lock rod fixing seat (21), and the lock rod shaft (23) is sleeved with a rotatable lock rod rotating sleeve (24);

when the lock is clamped, the lock rod shaft (23) extrudes the top surface of the contact (131), the lock body buckle (1) or the lock body rod (2) can deflect to return, and the lock rod shaft (23) is clamped into the bayonet (132); the lock rod shaft (23) is separated from the bayonet (132) along the side inclined plane of the contact (131) by rotating the lock body buckle (1) or the lock body rod (2).

2. A latch mechanism according to claim 1, wherein: the bottom of the substrate (133) is provided with a limiting seat (134) for limiting the posture of the substrate (133); the base plate (133) is hinged with the base (11), the hinge shaft lever (112) is provided with a locking spring (12), and the locking spring (12) is propped against the base plate (133) and can enable the base plate (133) to return after deflection.

3. A latch mechanism according to claim 1, wherein: the lock body shaft (2) can rotate, and the rotating shaft of the lock body shaft deviates from the middle section of the contact (131) and is close to the side inclined surface of the contact (131), and the inclined surface is used for enabling the lock rod shaft (23) to be separated from the bayonet (132).

4. A lock body is characterized in that: comprising a handle (3) and a shackle mechanism as claimed in any one of claims 1 to 3, the lock shackle (1) or lock stem (2) being mounted on the handle (3).

5. A lock body according to claim 4, characterized in that: the handle (3) comprises a handle (31), a return spring (34) and an adapter plate (36), the fixed seat (21) is installed on the adapter plate (36), and the adapter plate (36) is driven by the handle (31) to rotate; the return spring (34) can restore the adapter plate (36) to the initial position.

6. A lock according to claim 5, characterized in that: the transfer disc (36) is connected with the handle seat (311) through the transmission disc (32), one side, facing the transfer disc (36), of the transmission disc (32) is provided with a transmission baffle plate (323), and the transmission baffle plate (323) is clamped with a protrusion on the transfer disc (36); and the return spring (34) is sleeved on the periphery of a cylinder formed by the matching of the transmission baffle plate (323) and the protrusion.

7. A lock body according to claim 6, characterized in that: the transmission disc (32) is sleeved in the sleeve (33), the return spring (34) is compressed between the rotating disc body (321) and the retaining ring at the end part of the sleeve (33), and a spring clamping groove (324) is arranged on a limiting baffle (322) of the transmission disc (32); the adapter plate (36) is limited to rotate in the end cover (35).

8. The utility model provides an application of lock body in kitchen equipment which characterized in that: use of the lock body according to any one of claims 4 to 7 in a steam cabinet, a pressure cooker or a steam oven.

9. Use of a lock body according to claim 8 in kitchen equipment, characterized in that: a door plate lock hole (42) is formed in a door plate (41) of the kitchen equipment, the lock body rod (2) is located in the door plate lock hole (42), and the lock body buckle (1) is located at the corresponding position of the equipment body.