CN112177461B

CN112177461B - Locking mechanism, rack device and medical imaging equipment

Info

Publication number: CN112177461B
Application number: CN202011051000.6A
Authority: CN
Inventors: 张运芝; 马梅; 杨雅彬
Original assignee: Neusoft Medical Systems Co Ltd
Current assignee: Neusoft Medical Systems Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2022-04-01
Anticipated expiration: 2040-09-29
Also published as: CN112177461A

Abstract

The invention discloses a locking mechanism, a rack device and medical imaging equipment. The locking mechanism comprises an installation unit, a lock tongue and a clamping piece; the lock tongue comprises a connecting part, an accommodating part and a first matching body, wherein the connecting part is rotatably connected with the mounting unit and can drive the first matching body and the accommodating part to rotate, so that the accommodating part can be switched between an unlocking state and a locking state; the clamping piece is movably arranged on the mounting unit and comprises a second matching body and a driving part fixed with the second matching body, and the driving part can drive the second matching body to move; the clamping piece can automatically reset, so that the second matching body moves close to the connecting part and locks the first matching body; the accommodating portion can be automatically reset to an unlocked state. The locking mechanism, the rack device and the medical imaging equipment can simplify the disassembly and assembly operation process and are beneficial to improving the maintenance efficiency.

Description

Locking mechanism, rack device and medical imaging equipment

Technical Field

The invention relates to the technical field of medical instruments, in particular to a locking mechanism, a rack device and medical imaging equipment.

Background

For convenience of maintenance of medical imaging equipment such as CT (Computed Tomography), a locking mechanism which is convenient to detach and install is disposed between the housing unit and the frame, for example, the locking mechanism is used to detach and install the side cover, so as to facilitate maintenance, replacement, or maintenance of the electrical element of the corresponding protection portion of the side cover.

However, the locking mechanism applied to the medical imaging equipment at present has structural defects, so that the unlocking and opening processes of the side cover are complicated and inconvenient, and the maintenance efficiency of the medical imaging equipment is not improved.

Disclosure of Invention

Therefore, there is a need for a locking mechanism, a rack device and a medical imaging apparatus, which can simplify the assembling and disassembling process and improve the maintenance efficiency.

The technical scheme is as follows:

on one hand, the invention provides a locking mechanism which comprises an installation unit, a bolt and a clamping piece; the mounting unit comprises a first limiting part; the lock tongue comprises a connecting part, an accommodating part and a first matching body, the connecting part is rotatably connected with the mounting unit and can drive the first matching body and the accommodating part to rotate, so that the accommodating part can be switched between an unlocking state and a locking state, the accommodating part is provided with a groove, and the first matching body is provided with a first locking part; the clamping piece is movably arranged on the mounting unit and comprises a second matching body, a second limiting part and a driving part fixed with the second matching body, the driving part can drive the second matching body to move, and the second matching body is provided with a second locking part; when the accommodating part rotates from the unlocking state to the locking state, the first matching body can push the second matching body, so that the second matching body moves away from the connecting part; when the accommodating part rotates to a locking state, the clamping piece can automatically reset, so that the second matching body moves close to the connecting part and locks the first matching body; after the second matching body locks the first matching body, the second limiting part abuts against the first limiting part, so that the second matching body can only move towards the direction far away from the connecting part; the length of the first limiting part or/and the second limiting part is adjustable, so that the matching amount between the second locking part and the first locking part is adjustable; when the driving part drives the clamping piece to move, the accommodating part can be automatically reset to an unlocking state when the second matching body is separated from the first matching body.

The locking mechanism may be mounted in a door frame-like structure, such as a frame; and the lock cylinder may be mounted in a door-like structure, such as a hood door. So, when the lock from opening to the in-process of locking, the lock can with the portion cooperation of holding, promote the portion of holding and rotate to the locking state from the unblock state, and then can lock the lock in the portion of holding. In the process, the lock column can push the lock tongue to rotate, and further drive the first matching body to rotate; when the first matching body is contacted with the second matching body, the lock column is continuously pushed, so that the first matching body pushes the second matching body to move away from the connecting part; when the accommodating part rotates to the locking state, the clamping piece automatically resets, so that the second matching body is restored to the initial position, a rotation stopping structure can be formed, the first matching body cannot move towards the unlocking state, the accommodating part can not rotate to the unlocking state, and the lock cylinder is locked. When the lock cylinder needs to be unlocked from the locking state, the driving part is only needed to drive the clamping piece to move, so that the second matching body is separated from the first matching body, and the bolt automatically resets the accommodating part to the unlocking state under the automatic resetting force; thus, the lock cylinder can move to complete unlocking. Above-mentioned in-process, can adjust the cooperation volume of first cooperation body and second cooperation body as required for the cooperation of spring bolt and card firmware is more reliable, and the lock post can lock reliably in locking mechanical system. The locking mechanism is applied to medical imaging equipment, and the cover door can be locked on the rack only by pushing the cover door to move; in the unlocking process, the cover door can be unlocked only by simple rotation or push-pull operation, so that the cover door can be conveniently opened. Compared with the prior art, the locking mechanism can simplify the operation steps and is beneficial to improving the maintenance efficiency of the medical imaging equipment.

The technical solution is further explained below:

in one embodiment, the first matching body is provided with a first leading-in part, the first locking part is arranged adjacent to or at an interval with the first leading-in part, the second matching body is provided with a second leading-in part, and the second locking part is arranged adjacent to or at an interval with the second leading-in part; when the accommodating part rotates from the unlocking state to the locking state, the first leading-in part abuts against the second leading-in part and pushes the second matching body to move away from the connecting part; when the accommodating part rotates to a locking state, the clamping piece and the lock tongue can automatically reset, so that the second locking part is in locking fit with the first locking part; when the driving part drives the clamping piece to move, the second locking part can drive the first locking part to rotate towards the direction far away from the unlocking state.

In one embodiment, the mounting unit comprises a first limiting part, and the clamping piece is provided with a second limiting part; when the accommodating part rotates to a locking state, the clamping piece can automatically reset, so that the second limiting part is abutted against the first limiting part, and the second matching body can only move towards the direction far away from the connecting part; when the accommodating part rotates from the unlocking state to the locking state, the first leading-in part is abutted against the second leading-in part and can push the second limiting part to be separated from the first limiting part.

In one embodiment, the length of the first limiting part or/and the second limiting part is adjustable, so that the matching amount between the second locking part and the first locking part is adjustable.

In one embodiment, the first limiting part comprises a first threaded hole arranged on the mounting unit and a first screw bolt in threaded fit with the first threaded hole, and the abutting end of the first screw bolt protrudes out of the first threaded hole; correspondingly, or/and the second limiting part comprises a second threaded hole formed in the clamping piece and a second screw matched with the second threaded hole in a threaded mode, and the abutting end of the second screw protrudes out of the second threaded hole.

In one embodiment, the fixing member is rotatably disposed on the mounting unit, a force-saving arm is formed between the first engaging body and a rotation center of the fixing member, and a force-saving arm is formed between the driving portion and the rotation center of the fixing member.

In one embodiment, an elastic element is arranged between the clamping element and the bolt, so that the clamping element and the bolt can automatically reset.

In one embodiment, the locking mechanism further comprises a flexible transmission unit, and one end of the flexible transmission unit is fixedly connected with the driving part and used for driving the driving part to move.

In another aspect, the present invention further provides a rack apparatus, which includes a rack and the locking mechanism in any of the above embodiments, wherein the locking mechanism is fixedly mounted on the rack through a mounting unit.

When the frame device is used, when the cover door needs to be installed, the lock cylinder only needs to be installed at the preset position of the cover door. So, when needs locking cover door, only need promote cover door for the lock cylinder can with the portion cooperation that holds, and promote the portion that holds and rotate to the locking state from the unblock state, and then can lock the lock cylinder in the portion that holds, accomplish the locking of cover door. In the process, the lock column can push the lock tongue to rotate, and further drive the first matching body to rotate; when the first matching body is contacted with the second matching body, the lock column is continuously pushed, so that the first matching body pushes the second matching body to move away from the connecting part; when the accommodating part rotates to the locking state, the clamping piece automatically resets, so that the second matching body is restored to the initial position, a rotation stopping structure can be formed, the first matching body cannot move towards the unlocking state, the accommodating part can not rotate to the unlocking state, and the lock cylinder is locked. When the cover door needs to be opened, the driving part is only needed to drive the clamping and fixing piece to move, so that the second matching body is separated from the first matching body, and the spring bolt enables the accommodating part to automatically reset to an unlocking state under the automatic resetting force; thus, the lock cylinder can move to complete the unlocking of the cover door, and the cover door can be opened at the moment. Above-mentioned in-process, can adjust the cooperation volume of first cooperation body and second cooperation body as required for the cooperation of spring bolt and card firmware is more reliable, and the lock post can lock reliably in locking mechanical system, makes the cover door lock reliably in the frame. The medical imaging equipment utilizes the locking mechanism to form a frame device, and the cover door can be locked on the frame only by pushing the cover door to move; in the unlocking process, the cover door can be unlocked only by simple rotation or push-pull operation, so that the cover door can be conveniently opened. Compared with the prior art, the method can simplify the operation steps and is beneficial to improving the maintenance efficiency of the medical imaging equipment.

On the other hand, the invention also provides medical imaging equipment, which comprises a cover door and the rack device in the embodiment, wherein the cover door is rotatably arranged on the rack, and the cover door is provided with a lock rod matched with the accommodating part.

When the medical imaging equipment is used and needs to lock the cover door, the cover door only needs to be pushed, so that the lock cylinder can be matched with the accommodating part, the accommodating part is pushed to rotate to the locking state from the unlocking state, and then the lock cylinder can be locked in the accommodating part to complete the locking of the cover door. In the process, the lock column can push the lock tongue to rotate, and further drive the first matching body to rotate; when the first matching body is contacted with the second matching body, the lock column is continuously pushed, so that the first matching body pushes the second matching body to move away from the connecting part; when the accommodating part rotates to the locking state, the clamping piece automatically resets, so that the second matching body is restored to the initial position, a rotation stopping structure can be formed, the first matching body cannot move towards the unlocking state, the accommodating part can not rotate to the unlocking state, and the lock cylinder is locked. When the cover door needs to be opened, the driving part is only needed to drive the clamping and fixing piece to move, so that the second matching body is separated from the first matching body, and the spring bolt enables the accommodating part to automatically reset to an unlocking state under the automatic resetting force; thus, the lock cylinder can move to complete the unlocking of the cover door, and the cover door can be opened at the moment. Above-mentioned in-process, can adjust the cooperation volume of first cooperation body and second cooperation body as required for the cooperation of spring bolt and card firmware is more reliable, and the lock post can lock reliably in locking mechanical system, makes the cover door lock reliably in the frame. The frame device is applied to medical imaging equipment, and the cover door can be locked on the frame only by pushing the cover door to move; in the unlocking process, the cover door can be unlocked only by simple rotation or push-pull operation, so that the cover door can be conveniently opened; compared with the prior art, the unlocking and locking operation process of the cover door is simple, the unlocking and locking efficiency is convenient to improve, and the maintenance efficiency is favorably improved.

Drawings

Fig. 1 is a partial schematic structural view of a medical imaging apparatus according to an embodiment;

FIG. 2 is a schematic view of a portion of the door shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the rack assembly shown in FIG. 1;

FIG. 4 is a schematic front view of the locking mechanism shown in FIG. 3;

FIG. 5 is a side schematic view of the locking mechanism shown in FIG. 3;

FIG. 6 is a schematic view of the receptacle of the locking mechanism shown in FIG. 4 rotated from an unlocked state to a locked state;

FIG. 7 is a schematic view of the locking mechanism of FIG. 4 with the receiver rotated in a locked condition;

FIG. 8 is a schematic view of the receptacle of the locking mechanism rotated from an unlocked state to a locked state in another embodiment;

FIG. 9 is a schematic view of the receiver of the locking mechanism shown in FIG. 8 in a locked condition;

FIG. 10 is a schematic front view of a locking mechanism in another embodiment;

FIG. 11 is a side view of a locking mechanism in another embodiment.

Description of reference numerals:

10. a rack device; 12. a frame; 14. a locking mechanism; 20. a cover door; 22. a lock cylinder; 100. a mounting unit; 110. a first limiting part; 120. an avoidance groove; 200. a latch bolt; 210. a connecting portion; 220. an accommodating portion; 230. a first mating body; 232. a first introduction part; 234. a first locking portion; 300. a clamping and fixing piece; 310. a second mating body; 312. a second introduction part; 314. a second lock portion; 320. a drive section; 330. a second limiting part; 332. a second threaded hole; 334. a second screw; 400. an elastic member; 500. a flexible transmission unit.

Brief description of the drawingsthe accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention, and together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only 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.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The traditional medical imaging equipment comprises a rack, wherein the rack is provided with a protective cavity, an electric device is arranged in the protective cavity, and the protective cavity is sealed through a cover door. The medical imaging equipment needs to be maintained, and the cover door needs to be opened in the process, so that the electric device is convenient to maintain, overhaul or replace and the like. At present, a cover door is fixed on a rack in a fixing mode through bolts, and at the moment, screwing a plurality of bolts is time-consuming and labor-consuming, so that the efficiency of operations such as maintenance, overhaul, replacement and the like is not improved; and part of the cover door can be rotatably arranged on the frame and locked by using the locking structure. However, the locking structure commonly used at present needs a large locking force to lock the cover door, and meanwhile, the unlocking of the cover door needs a large force, and an ejection mechanism needs to be additionally arranged to pull the cover door. Therefore, the locking and opening operations of the cover door of the traditional medical imaging equipment are time-consuming and labor-consuming, the locking or unlocking efficiency is low, and the maintenance efficiency of the medical imaging equipment is not improved favorably.

Therefore, there is a need for a locking mechanism, which can simplify the unlocking and locking processes, improve the locking and unlocking efficiency, and facilitate the maintenance efficiency of the medical imaging device.

For a better understanding of the locking mechanism of the present invention, reference is made to a medical imaging apparatus to which the locking mechanism is applied.

As shown in fig. 1 and 2, a medical imaging apparatus includes a frame device 10 and a cover door 20, wherein the cover door 20 cooperates with the frame device 10 to form a protection cavity for protecting electrical components.

As shown in fig. 3 and 4, the rack device 10 includes a rack 12 and a lock mechanism 14 provided on the rack 12. As shown, the locking mechanism 14 includes a mounting unit 100, a latch 200 and a fastener 300, which are mounted on the frame 12; the locking bolt 200 comprises a connecting part 210, an accommodating part 220 and a first matching body 230, wherein the connecting part 210 is rotatably connected with the mounting unit 100 and can drive the first matching body 230 and the accommodating part 220 to rotate, so that the accommodating part 220 can be switched between an unlocking state and a locking state; the fixing member 300 is movably disposed on the mounting unit 100, the fixing member 300 includes a second engaging body 310 and a driving portion 320 fixed to the second engaging body 310, and the driving portion 320 can drive the second engaging body 310 to move; when the accommodating portion 220 rotates from the unlocked state to the locked state, the first engaging body 230 can push the second engaging body 310, so that the second engaging body 310 moves away from the connecting portion 210; when the accommodating portion 220 rotates to the locked state, the locking member 300 can automatically reset, so that the second engaging body 310 moves close to the connecting portion 210 and locks the first engaging body 230, and the engaging amount between the second engaging body 310 and the first engaging body 230 is adjustable; when the driving portion 320 drives the fastener 300 to move, so that the second mating body 310 is separated from the first mating body 230, the accommodating portion 220 can be automatically reset to the unlocked state.

Wherein, the cover door 20 is rotatably disposed on the frame 12, and the cover door 20 is provided with a lock rod matching with the receiving portion 220

When the medical imaging device is used, as shown in fig. 4 to 7, when the cover door 20 needs to be locked, the cover door 20 is pushed, so that the lock cylinder 22 is matched with the accommodating portion 220, the accommodating portion 220 is pushed to rotate from the unlocked state to the locked state, and the lock cylinder 22 can be locked in the accommodating portion 220, thereby completing the locking of the cover door 20. In this process, the lock cylinder 22 will push the lock tongue 200 to rotate, and further drive the first mating body 230 to rotate; after the first engaging body 230 contacts the second engaging body 310, the locking cylinder 22 is pushed continuously, so that the first engaging body 230 pushes the second engaging body 310 to move away from the connecting portion 210; when the accommodating portion 220 rotates to the locked state, the locking member 300 automatically resets, so that the second engaging body 310 is restored to the initial position, and a rotation stop structure can be formed, so that the first engaging body 230 cannot move toward the unlocked state, and the accommodating portion 220 cannot rotate to the unlocked state, and the lock cylinder 22 is locked. When the cover door 20 needs to be opened, the driving part 320 is only needed to drive the clamping and fixing piece 300 to move, so that the second matching body 310 is separated from the first matching body 230, and the bolt 200 automatically resets the accommodating part 220 to an unlocking state under the automatic resetting force; in this manner, the lock cylinder 22 may be moved to complete the unlocking of the door 20, at which time the door 20 may be opened. In the above process, the fitting amount of the first fitting body 230 and the second fitting body 310 can be adjusted as required, so that the fitting of the latch tongue 200 and the fastener 300 is more reliable, and the lock cylinder 22 can be reliably locked in the locking mechanism 14, so that the cover door 20 is reliably locked on the rack 12. The frame device is applied to medical imaging equipment, and the cover door 20 can be locked on the frame 12 only by pushing the cover door 20 to move; in the unlocking process, the cover door 20 can be unlocked only by simple rotation or push-pull operation, so that the cover door 20 can be conveniently opened; compared with the prior art, the unlocking and locking operation process of the cover door 20 is simple, the unlocking and locking efficiency is convenient to improve, and the maintenance efficiency is favorably improved.

It should be noted that "the engagement amount between the second engaging member 310 and the first engaging member 230 is adjustable" means that the amount of displacement or rotation to be overcome for preventing the two engaging members from being separated can be adjusted, for example, the second engaging member 310 needs to move more distance to be separated from the first engaging member 230. The specific implementation manner can be various, including but not limited to the length of the first fitting body 230 or/and the second fitting body 310 being adjustable, or the fitting position of the first fitting body 230 or/and the second fitting body 310 being variable, or the extreme position of the movement of the second fitting body 310 being adjustable.

In addition, according to the above technical solution, when the locking mechanism 14 is assembled, the manufacturing error or the assembling error can be overcome by the above means, and the adaptability of the locking mechanism 14 is improved.

It should be noted that "the second matching body 310 locks the first matching body 230" means that the first matching body 230 cannot push the second matching body 310 to rotate, and only the driving portion 320 drives the fastening member 300 to move, so that after the second matching body 310 is separated from the first matching body 230, the first matching body 230 can rotate, so that the accommodating portion 220 can be smoothly reset to the unlocking state.

It should be noted that, the "accommodating portion 220" can be opened and set up the recess, hold the chamber isotructure and realize, can set up through spacing convex body interval and form the holding tank, and concrete implementation can have the multiple, as long as can hold the pinning can.

In addition to the above embodiments, as shown in fig. 6 and 7, or as shown in fig. 8 and 9, in an embodiment, the first engaging body 230 is provided with a first introduction portion 232 and a first locking portion 234 adjacent to or spaced from the first introduction portion 232, and the second engaging body 310 is provided with a second introduction portion 312 and a second locking portion 314 adjacent to or spaced from the second introduction portion 312; when the accommodating part 220 rotates from the unlocked state to the locked state, the first lead-in part 232 abuts against the second lead-in part 312 and pushes the second matching body 310 to move away from the connecting part 210; when the accommodating part 220 rotates to the locked state, the fastener 300 and the bolt 200 can automatically reset, so that the second locking part 314 is in locking fit with the first locking part 234; when the driving portion 320 drives the card fixing element 300 to move, the second locking portion 314 can drive the first locking portion 234 to rotate in a direction away from the unlocking state. Therefore, the first guiding portion 232 is matched with the second guiding portion 312, so that the first matching body 230 can smoothly push the second matching body 310 to move, after the first matching body 230 is separated from the second matching body 310, under the automatic resetting force of the clamping member 300 and the lock tongue 200, the second locking portion 314 is matched with the first locking portion 234, and then the locking matching of the second matching body 310 and the first matching body 230 is realized, so that the accommodating cavity is reliably and fixedly arranged in the locking state, the locking of the lock column 22 is realized, and the cover door 20 is locked on the rack 12. When the cover door 20 needs to be opened, the driving part 320 is only needed to drive the clamping piece 300 to move, so that the second locking part 314 drives the first locking part 234 to rotate towards the direction away from the unlocking state until the second locking part 314 is separated from the first locking part 234, the accommodating part 220 rotates to the unlocking state under the action of the automatic resetting force of the lock tongue 200, at the moment, the cover door 20 can pop out a distance, and an operator can conveniently pull the cover door 20 continuously to open the cover door 20.

Alternatively, "first introduction portion 232" and "second introduction portion 312" have a rounded or reverse-tapered configuration.

On the basis of the above embodiments, as shown in fig. 6 and 7, or as shown in fig. 8 and 9, in an embodiment, the mounting unit 100 includes a first limiting portion 110, and the fastening member 300 has a second limiting portion 330; when the accommodating portion 220 rotates to the locked state, the locking member 300 can automatically reset, such that the second position-limiting portion 330 abuts against the first position-limiting portion 110, and the second engaging body 310 can only move in a direction away from the connecting portion 210; when the accommodating portion 220 rotates from the unlocked state to the locked state, the first guiding portion 232 abuts against the second guiding portion 312 and can push the second limiting portion 330 to separate from the first limiting portion 110. In this way, by providing the first limiting portion 110 on the mounting unit 100 and by providing the fastening member 300 on the second limiting portion 330 abutting against the first limiting portion 110, the limiting of the limit position of the movement of the second mating body 310 is realized, and further, when the accommodating portion 220 is in the locking state, the fastening member 300 can automatically reset, and the second locking portion 314 is in locking fit with the first locking portion 234. At this time, even if the cover door 20 is pulled outward, the second engaging body 310 can only move in a direction away from the connecting portion 210 because the second stopper 330 abuts against the first stopper 110, and the first locking portion 234 cannot push the second locking portion 314 to move, thereby reliably locking the cover door 20. When the driving portion 320 drives the fastener 300 to move, the second locking portion 314 can drive the first locking portion 234 to rotate in the opposite direction away from the unlocking state, so that the separation of the first locking portion and the second locking portion can be accelerated, the stroke of the second locking portion 314 can be shortened, and the unlocking can be completed as soon as possible.

Based on the above embodiments, as shown in fig. 6 and 7 or fig. 8 and 9, optionally, in an embodiment, the length of the first limiting portion 110 or/and the second limiting portion 330 is adjustable, so that the engagement amount between the second locking portion 314 and the first locking portion 234 is adjustable. In this way, the movement limit position of the second engaging body 310 can be adjusted by adjusting the lengths of the first limiting portion 110, the second limiting portion 330, or the first limiting portion 110 and the second limiting portion 330, so that the engaging amount between the second locking portion 314 and the first locking portion 234 can be adjusted. The technical means is simple to operate and easy to calibrate and adjust, so that the matching amount of the second locking part 314 and the first locking part meets the design requirement.

Specifically, in an embodiment, the first position-limiting portion 110 includes a first threaded hole (not shown) disposed on the mounting unit 100 and a first screw (not shown) screwed with the first threaded hole, and a pressing end of the first screw protrudes out of the first threaded hole. Therefore, the screw transmission is utilized to stop immediately after rotating and keep away from self locking, so that the position of the abutting end of the first screw rod extending out of the first threaded hole is adjusted, and the length of the first limiting part 110 is adjustable.

Alternatively, in an embodiment, the first position-limiting part 110 includes a first threaded hole (not shown) disposed on the mounting unit 100 and a first screw (not shown) screwed with the first threaded hole, and a pressing end of the first screw protrudes out of the first threaded hole; the second limiting portion 330 includes a second threaded hole 332 disposed on the fastening member 300 and a second screw 334 screwed with the second threaded hole 332, and a pressing end of the second screw 334 protrudes out of the second threaded hole 332 (see fig. 6 and 7). Thus, in combination with the above analysis, the length of the first and second position-limiting

portions

110 and 330 can be adjusted by adjusting the extending positions of the pressing ends of the first and second screws 334

Alternatively, as shown in fig. 6 and fig. 7, specifically in this embodiment, the second limiting portion 330 includes a second threaded hole 332 disposed on the fastening member 300 and a second screw 334 screwed with the second threaded hole 332, and the pressing end of the second screw 334 protrudes out of the second threaded hole 332. Therefore, the position of the second screw 334 extending out of the abutting end of the second threaded hole 332 is adjusted by utilizing the screw thread transmission, namely, the stop-and-go and the self-locking distance, so that the length of the second limiting part 330 is adjustable.

The "mounting unit 100" is an assembly or a member having a mounting function, that is, an assembly or a member having a mounting function, which is capable of completing mounting integration of at least one member/unit, and includes any structure that can implement mounting of the above components, such as a wire, without being limited to a mounting bracket, a mounting seat, and a mounting case. The first position-limiting portion 110 is an independent component of the mounting unit 100 or a protruding structure.

Specifically, in the embodiment, as shown in fig. 4 and 5, the first position-limiting portion 110 is a side plate body, and thus has a larger area to be matched with the pressing end of the second screw 334.

In addition, the "mounting unit 100" is provided with an avoiding groove 120, and the first engaging body 230 and the second engaging body 310 are convexly disposed in the avoiding groove 120, so that the lock cylinder 22 is conveniently matched with the locking mechanism through the avoiding groove 120, and the mounting manner of the lock cylinder 22 on the cover body can be varied.

It should be noted that the movable setting of the "fastener 300" includes, but is not limited to, translation, vertical movement, oblique movement, rotation, and the like.

On the basis of any of the above embodiments, as shown in fig. 4 and fig. 5, in the embodiment, the fixing member 300 is rotatably disposed on the mounting unit 100, a force-saving arm is formed between the first engaging body 230 and the rotation center of the fixing member 300, and a force-saving arm is formed between the driving portion 320 and the rotation center of the fixing member 300. Thus, the force-saving arm is formed to make the locking force between the first mating body 230 and the second mating body 310 greater, and when unlocking, the force-saving arm only needs a smaller operating force to drive the fastener 300 to rotate through the driving portion 320, so as to separate the second mating body 310 from the first mating body 230.

Alternatively, the rotation center line of the card holder 300 and the rotation center line of the connecting portion 210 are parallel to each other. Therefore, in the process of matching the first matching body 230 and the second matching body 310, self-locking interference is not easy to occur, the stability and smoothness of rotation are improved, the automatic resetting of the lock tongue 200 is facilitated, and the accommodating part 220 is reset to the unlocking state.

The driving unit may be provided in any manner, including, but not limited to, the manner shown in fig. 4 and 5 or the manner shown in fig. 10, as long as it can form an arm.

On the basis of any of the above embodiments, as shown in fig. 3, in an embodiment, an elastic member 400 is disposed between the fastening member 300 and the latch 200, so that the fastening member 300 and the latch 200 can be automatically reset. Thus, the elastic element 400 is arranged between the clamping element 300 and the bolt 200, so that the clamping element 300 and the bolt 200 can be automatically reset, and the linkage fit of the clamping element 300 and the bolt 200 can be realized; for example, when the second engaging body 310 is separated from the first engaging body 230, the elastic member 400 therebetween continues to stretch, so that when the two are separated, the elastic member 400 has a larger restoring force to drive the latch tongue 200 to restore, so that the accommodating portion 220 is in the unlocked state.

The elastic member 400 includes, but is not limited to, a tension spring, an elastic string, an elastic sheet, and the like.

On the basis of any of the above embodiments, as shown in fig. 4, 5 and 11, in an embodiment, the locking mechanism 14 further includes a flexible transmission unit 500, and one end of the flexible transmission unit 500 is fixedly connected to the driving portion 320 for driving the driving portion 320 to move. The unlocking force is small, so that the cable unlocking device is more suitable for being integrated with a cable driving device, remote driving is realized, the arrangement of an unlocking position is more convenient, the application can be expanded in an area with inconvenient unlocking operation, and the convenience of maintenance operation is improved. The unlocking position is flexibly set, the operation of a maintainer is facilitated, and the appearance is not influenced.

Optionally, the flexible transmission unit 500 includes, but is not limited to, a tension rope, a traction rope, a steel wire rope, a nylon rope, etc., and the other end of the flexible transmission unit 500 is a force application end, and can be flexibly disposed at an unobtrusive hidden position such as the bottom and the back of the frame 12, which is beneficial to improving the appearance of the medical imaging device.

The specific structure of the "driving portion 320" includes, but is not limited to, a hole-like structure such as a hexagon socket, or a protrusion structure such as a hexagon socket.

It should be noted that the "first mating body 230" may be a part of the locking tongue 200, that is, the "first mating body 230" and "other parts of the locking tongue 200, such as the connecting portion 210 and the accommodating portion 220", are manufactured by integral molding; the "first mating body 230" may be manufactured separately from the "other parts of the locking tongue 200, such as the connecting portion 210 or the receiving portion 220", and then may be combined with the "other parts of the locking tongue 200, such as the connecting portion 210 or the receiving portion 220" into a whole.

Equivalently, the "body" and the "certain part" can be parts of the corresponding "component", i.e., the "body" and the "certain part" are integrally manufactured with other parts of the "component"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present invention are only one embodiment, and are not intended to limit the scope of the present invention for reading convenience, and the present invention should be construed as equivalent technical solutions if the features and the effects described above are included.

It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present invention can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above components into the present invention is only one embodiment, which is convenient for reading and is not a limitation to the protection scope of the present invention, and the equivalent technical solutions of the present invention should be understood as if they include the above components and have the same function.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to 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 invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is regarded as being fixedly connected with the other element in a transmission manner, the two elements can be detachably connected and also can be fixed in an undetachable manner, power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, and the traditional technology can achieve the purpose of no encumbrance. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A locking mechanism, comprising:

a mounting unit including a first stopper;

the bolt comprises a connecting part, an accommodating part and a first matching body, wherein the connecting part is rotationally connected with the mounting unit and can drive the first matching body and the accommodating part to rotate, so that the accommodating part can be switched between an unlocking state and a locking state, the accommodating part is provided with a groove, and the first matching body is provided with a first locking part; and

the clamping piece is movably arranged on the mounting unit and comprises a second matching body, a second limiting part and a driving part fixed with the second matching body, the driving part can drive the second matching body to move, and the second matching body is provided with a second locking part;

wherein when the accommodating portion is rotated from the unlocked state toward the locked state, the first engaging body can push the second engaging body so that the second engaging body moves away from the connecting portion;

when the accommodating part rotates to the locking state, the clamping piece can automatically reset, so that the second matching body moves close to the connecting part, and the first matching body is locked; after the second matching body locks the first matching body, the second limiting part abuts against the first limiting part, so that the second matching body can only move towards the direction far away from the connecting part; the length of the first limiting part or/and the second limiting part is adjustable, so that the matching amount between the second locking part and the first locking part is adjustable;

when the driving part drives the clamping piece to move, so that the second matching body is separated from the first matching body, the accommodating part can be automatically reset to the unlocking state.

2. The lock mechanism according to claim 1, wherein the first engaging body is provided with a first introduction portion, the first lock portion being provided adjacent to or spaced apart from the first introduction portion, and the second engaging body is provided with a second introduction portion, the second lock portion being provided adjacent to or spaced apart from the second introduction portion; wherein,

when the accommodating part rotates from the unlocking state to the locking state, the first leading-in part abuts against the second leading-in part and pushes the second matching body to move away from the connecting part;

when the accommodating part rotates to the locking state, the clamping piece and the lock tongue can automatically reset, so that the second locking part is in locking fit with the first locking part;

when the driving part drives the clamping piece to move, the second locking part can drive the first locking part to rotate towards the direction far away from the unlocking state.

3. The lock mechanism according to claim 2, wherein when the accommodating portion is rotated from the unlocked state toward the locked state, the first introduction portion abuts against the second introduction portion and can push the second stopper portion away from the first stopper portion.

4. The locking mechanism according to claim 1, wherein the first limiting portion comprises a first threaded hole arranged on the mounting unit and a first screw bolt in threaded fit with the first threaded hole, and a pressing end of the first screw bolt protrudes out of the first threaded hole; correspondingly, or/and the second limiting part comprises a second threaded hole formed in the clamping piece and a second screw rod in threaded fit with the second threaded hole, and the abutting end of the first screw rod protrudes out of the first threaded hole.

5. The locking mechanism of claim 1, wherein the engaging member is rotatably disposed on the mounting unit, and a force-saving arm is formed between the first engaging body and a rotation center of the engaging member, and a force-saving arm is formed between the driving portion and the rotation center of the engaging member.

6. The lock mechanism as claimed in claim 5, wherein an elastic member is provided between the engaging member and the latch tongue for automatically restoring the engaging member and the latch tongue.

7. The locking mechanism according to any one of claims 1 to 6, further comprising a flexible transmission unit, one end of the flexible transmission unit being fixedly connected to the driving portion for driving the driving portion to move.

8. A frame device, characterized in that the frame device comprises a frame and a locking mechanism according to any one of claims 1 to 7, which locking mechanism is secured to the frame by means of the mounting unit.

9. Medical imaging equipment, comprising a door and the frame device of claim 8, wherein the door is rotatably disposed on the frame and the door is provided with a lock rod cooperating with the receiving portion.