CN201133158Y

CN201133158Y - Centrifugal machine automatic door lock

Info

Publication number: CN201133158Y
Application number: CNU2007201442777U
Authority: CN
Inventors: 陆永泉
Original assignee: SHANGHAI ANTING SCIENTIFIC INSTRUMENT FACTORY
Current assignee: SHANGHAI ANTING SCIENTIFIC INSTRUMENT FACTORY
Priority date: 2007-10-31
Filing date: 2007-10-31
Publication date: 2008-10-15
Anticipated expiration: 2017-10-31

Abstract

The utility model relates to a centrifuge automatic door lock; the prior centrifuge door lock cannot automatically pop up the cover door when being unlocked, and cannot instantly open the cover door after being locked in case of the particular situation such as the power failure during the operation. The technical proposal is that a spring and a torsion-spring component are configured in a door-lock mechanism; the cover door is automatically popped up by the elastic force of the spring; the door lock comprise a lock pin, a lock hook, a lock underplate, a pin, a pullback spring, a pull rod, a rubber handle, a torsion spring, an electromagnetic latch, an unlock pull rod, a signal switch, a torsion-spring pin and an emergent manually-unlocking pull rope. The centrifuge automatic door lock has the advantages that the structure of the lock is compact, the lock takes less space, the lock is mainly formed by sheet metals, the process is more fine, the lock is easy to be assembled, the lock is convenient to be aimed for assembling compared with the traditional door lock; with the display of an electric signal, the lock is safe and reliable; the lock can be manually opened in case of emergency, and is an ideal lock for the instrument power equipment.

Description

The centrifuge automatic door lock

Technical field

The utility model relates to a kind of lockset, particularly relates to the lockset between a kind of laboratory centrifuge lid door and the casing.

Background technology

Centrifuge is one of biomedical engineering plant and instrument commonly used; the rotor and the Centrifuge Cup (pipe) of sample separation are housed in the casing of laboratory centrifuge usually; what have also is provided with fan housing; rotor has bigger kinetic energy during running; if because motor; driving shaft; the defective of rotor or control system; rotor or part rotor take place to break away from; just having a large amount of kinetic energy discharges; be protection user's the safety and the fastness of assurance centrifugal device; generally in the rotor bottom of centrifuge be provided with certain centrifugal protection chamber on every side; the lid door that also is provided with band metal trim ring on centrifugal chamber is protected rotor-support-foundation system; the lid door is fixed on the frame by general door lock, when loading centrifugal sample, and manual unlocking lid door; loading finishes; manually will cover door and shut, door lock be pinned, after the running of finishing setting; door lock automatic disconnection locking-in state, not much else.When being to unblank, the weak point of this kind lockset can not automatically spring open lid door: and can not open the lid door immediately when being in operation special circumstances such as running into power failure after being lockable.

Summary of the invention

In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of centrifuge automatic door lock, and the technical solution of the utility model is configuration spring and a torsion spring assembly in door lock mechanism, by spring force from the door of uncapping of moving; Disposal when the design emergency opening device takes place to adapt to special circumstances.The technical solution of the utility model is to come specific implementation by following technical measures, a kind of lid door A by centrifuge, lid door latch B, locking mechanism fixed head C, locking mechanism D, the centrifuge automatic door lock that centrifuge body E and urgent manually drag-line F form, it is characterized in that described automatic door lock locking mechanism comprises lock pin 1, latch hook 2, bottom-locking plate 3, bearing pin 4, extension spring 5, pull bar 6, rubber stem 7, torsion spring 8, latch solenoid 9, the pull bar 10 of unblanking, signaling switch 11, installing hole 13 and torsion spring bearing pin 14, wherein: three bearing pins 4 pass lock pin 1 respectively, latch hook 2 and pull bar 6 are riveted on the bottom-locking plate 3, can relatively rotate with bearing pin 4; Lock pin 1 usefulness 5～6mm steel plate is made, and shape has tapered end, the lock wing, lock tail three parts as " pheasant " shape; Latch hook 2 usefulness 5～6mm steel plate is made, and top is circular-arc hook, and the bottom contacts and be subjected to the restriction of left-hand motion with pull bar 6 right tops; Pull bar 6 usefulness 2～3mm steel sheet is made, and its waist is connected with the lock portion of lock pin 1 by spring 5, and its underpart is done bending (6mm) and wrap up rubber to form rubber stem 7 slightly; Signaling switch 11 is installed in the below of lock pin 1, utilizes the contact in the lock portion move left and right of lock pin 1 to make it " opening " or " pass "; The shape of the pull bar made from 2～3mm steel sheet 10 of unblanking is as " L " shape, corner's kink is on torsion spring bearing pin 14 and controlled by the torsion of torsion spring 8, the also bending slightly (6mm) of upper end of pull bar 10 of unblanking, contact with rubber stem 7, bending is in order to increase contact area, to increase the service life, the unblank right-hand member of pull bar 10 contacts with latch solenoid 9, acceptance is from the unlock instruction and the action of the signal of telecommunication, and there is a circular hole below of the pull bar 10 of unblanking, fastens that drag-line F can promptly manually unblank, the door of uncapping; Lock cap adopts the steel sheet flanging to be combined on the bottom-locking plate 3, and each part is wrapped in wherein; The below of bottom-locking plate 3 is left and right respectively an installing hole 13, is used for lockset is fixed on locking mechanism fixed head D, is lifted on then on the centrifuge body E.The course of action of lockset is as follows: during unlocking condition, the lock portion of lock pin 1 is strained on pull bar 6 by extension spring 5, tapered end and lock alar part are upwarped all the time, when centrifuge cup door A closes centrifuge body E downwards, the ligulate snap close B that the lid student stretches out moves downward, the contact lock pin 1 the lock alar part and to pressing down, overcome the elastic force of spring 5, make lock pin 1 integral body clockwise around bearing pin 4 rotations, when snap close B moved downward the minimum point place, the hole among the snap close B was passed by the lock head branch of lock pin 1, reached to hook below the circular arc hook of latch hook 2 always, oppositely can not withdraw from, this moment, lid door A just was lockable, and turning clockwise to make to lock at lock pin 1 drives signaling switch 11 when portion moves forward, and exports an electric signal, on control panel, demonstrate a lid door A and reliably pinned, can safety, carrying out centrifuge has reliably moved.When needs are opened door lock, on control panel by the key that opens the door, latch solenoid 9 can stretch out downwards and be pressed onto the pull bar 10 of unblanking, and the pull bar 10 of unblanking overcomes the torsion of torsion spring 8, turns clockwise around torsion spring bearing pin 14, the pull bar 10 head bending parts of unblanking promote rubber stem 7 backward, therefore and the restriction of 6 pairs of latch hooks 2 of releasing lever can turn clockwise latch hook 2 around bearing pin 4 pull bar 6 that links to each other with rubber stem 7 is rotated counterclockwise around bearing pin 4,, lock pin 1 under the circular arc hook is no longer hooked, and can freely withdraw from; Pull bar 6 be rotated counterclockwise also further back-moving spring 5, lock pin 1 integral body is rotated counterclockwise, both made the tapered end of lock pin 1 partly withdraw from lid door A snap close B hole down, the lock alar part of lock pin 1 is upspring ligule snap close B, just will cover an A and upspring.Close the signal of telecommunication again when moving after the lock portion of lock pin 1, being reflected on the guidance panel also is the information of not locking, and when meeting special circumstances or power failure, when electromagnetic door lock can not be worked, the drag-line F that promptly manually unblanks of can leaving behind can unblank to flick the lid door equally.

Good effect of the present utility model is this lock structure compactness, it is little to take up room, and mainly combined by sheet metal component, and technology is meticulousr, be easy to assembling, be convenient to positive justification assembling than traditional door lock, increased can the upspring function of lid door of spring, seem convenient, lock pin passes snap close, lock pin is pushed down by latch hook again, add the demonstration of power on signal, the safety of more apparent this lockset, unfailing performance, running into promptly manual unlocking of special circumstances, is a kind of desirable instrument power-equipment lockset.

Description of drawings

The structural representation of Fig. 1, an embodiment device of the present utility model.

Fig. 2, a schematic diagram that embodiment installs in centrifuge of the present utility model.

Among the figure: 1----lock pin, 2----latch hook, 3----bottom-locking plate, 4----bearing pin, the 5----extension spring, 6----pull bar, 7----rubber stem, 8----torsion spring, 9----latch solenoid, the 10----pull bar of unblanking, the 11----signaling switch, 13----installing hole, 14----torsion spring bearing pin, A----centrifuge cup door, the ligulate snap close on the B----lid door, C----locking mechanism fixed head, D----locking mechanism, E----centrifuge body, the F----drag-line of promptly manually unblanking.

The specific embodiment

Be an embodiment of the present utility model below, the utility model is described in further detail in conjunction with the accompanying drawings:

Present embodiment is the automatic door lock on a kind of TDL-40C of being applied in centrifuge, the door lock assembly width is 60mm, maximum length is 94.5mm after the bending, the thickness of lock pin 1 and latch hook 2 is 6mm, shape by illustrated " pheasant " shape, pull bar 6 adopts the 2mm cold-reduced sheet to make, shape by shape shown, three bearing pins 4 are riveted on the bottom-locking plate 3 by the position of figure, lock pin 1, latch hook 2 and pull bar 6 are enclosed within respectively on the bearing pin 4, can freely rotate, at the lower end of pull bar 6 bending 6mm and wrap up rubber and become rubber stem 7, the pull bar 10 of unblanking adopts the 2mm cold-reduced sheets to make, and the upper end of the pull bar 10 of unblanking is bending 6mm also, can increase the service life with the contact surface that increases with rubber 7, and contact with the rubber friction and can reduce noise; Lock portion at pull bar 6 and lock pin 1 is connected with spring 5 extension springs, diameter phi 0.5mm steel wire coiled is adopted in this extension spring, extension spring external diameter φ 6mm, natural length 10mm, unblank pull bar 10 and torsion spring 8 is actively set on the torsion spring bearing pin 14, and torsion spring bearing pin spare is riveted on the bottom-locking plate 3, and the pull bar 10 of unblanking is controlled by torsion spring 8 torsion, it is φ 11mm that torsion spring 8 adopts the steel wire coiled external diameter of diameter phi 0.8mm, the 4-5 circle; The signaling switch 11 that install lock pin 1 below adopts Honeywell 311SM-T miniature switch; The latch solenoid 9 that contacts with the pull bar 10 of unblanking adopts 2HD-1-24D direct solenoid door lock; Bottom-locking plate 3 and lock cap all adopt the A3 cold-reduced sheet punching press of 2mm, and the deburring of bending surface finish is zinc-plated; The hole center to center distance of two installing holes 13 is 80mm, and the lockset gross thickness after the assembling is 12mm; One of the urgent drag-line F that manually unblanks is connected in the pull bar 10 bottom circular holes of unblanking, and the other end ties up on the handle of guidance panel, and turning handle can be opened the lid door.

Claims

1. lid door [A] by centrifuge, lid door latch [B], locking mechanism fixed head [C], locking mechanism [D], the centrifuge automatic door lock that centrifuge body [E] and urgent manually drag-line [F] are formed, it is characterized in that described automatic door lock locking mechanism comprises lock pin [1], latch hook [2], bottom-locking plate [3], bearing pin [4], extension spring [5], pull bar [6], rubber stem [7], torsion spring [8], latch solenoid [9], the pull bar [10] of unblanking, signaling switch [11], installing hole [13] and torsion spring bearing pin [14], wherein:three bearing pins [4] pass lock pin [1] respectively, latch hook [2] and pull bar [6] are connected on the bottom-locking plate [3], can and bearing pin [4] relatively rotate; Lock pin [1] is made with steel plate, and shape has tapered end, the lock wing, lock tail three parts as " pheasant " shape; Latch hook [2] is made with steel plate, and top is circular-arc hook, and the bottom contacts and be subjected to the restriction of left-hand motion with the right top of pull bar [6]; Pull bar [6] is made with steel sheet, and its waist is connected with the lock portion of lock pin [1] by spring [5], and its underpart bending is also wrapped up rubber formation rubber stem [7]; Signaling switch [11] is installed in the below of lock pin [1], utilizes the contact in the lock portion move left and right of lock pin [1] to make it " opening " or " pass "; Unblank the shape of pull bar [10] as " L " shape, corner's kink goes up and is subjected to the torsion control of torsion spring [8] at torsion spring bearing pin [14], the also bending of upper end of pull bar [10] of unblanking, contact with rubber stem [7], the unblank right-hand member of pull bar [10] contacts with latch solenoid [9], there is a circular hole the unblank below of pull bar [10], fastens that drag-line F can promptly manually unblank, the door of uncapping; The lock cap that each part is wrapped in wherein adopts the steel sheet flanging to be combined on the bottom-locking plate [3], the below of bottom-locking plate [3] is left and right respectively an installing hole [13], by screw lockset is fixed on the locking mechanism fixed head [D], is lifted on then on the centrifuge body [E].

2. centrifuge automatic door lock according to claim 1 is characterized in that the thickness of the steel plate of described lock pin [1] and latch hook [2] is 5～6mm.

3. centrifuge automatic door lock according to claim 1 is characterized in that the steel sheet that described pull bar [6] and the pull bar of unblanking [10] are 2～3mm thickness makes.

4. centrifuge automatic door lock according to claim 1 is characterized in that the bending of described pull bar [6] bottom and the upper end bending of the pull bar of unblanking [10] are bending 6mm.