CN204826931U - Locking device that micropore board centrifugal separator was used - Google Patents

Abstract

The utility model relates to a locking device that micropore board centrifugal separator was used, including the casing, open and close complex upper cover, its characterized in that with the casing the casing on a fixed mount pad, set up a pivot on the mount pad, a latch hook is put to the cover on the pivot, a cooperation solenoid valve on the latch hook, the hook portion that lock portion on the latch hook covered on with forms the plug -in type and opens and close the cooperation. The utility model discloses the beneficial effect who has: 1, the buckle formula that changes prior art, enables lock portion accident hardly and withdraws from hook portion during the locking for the plug -in type, adopts the solenoid valve to come control simultaneously and opens and close, and it is accurate and reliable to open and close, makes the centrifugal separator use safe and reliable more. 2, the latch hook is ingenious with the cooperation structure of solenoid valve, and the action is succinct reliable. 3, set up the latch hook piece that resets, simplify the part of stirring the latch hook. 4, driving micro -gap switch by the latch hook action and moving, structure cooperation just right is guaranteeing to start the work of micropore board centrifugal separator by micro -gap switch under the circumstances that the upper cover locked totally.

Description

The locking device of Microplate centrifuge

Technical field

The utility model relates to a kind of locking device of Microplate centrifuge.

Background technology

Centrifuge is the scientific instrument for separating substances, is widely used in the fields such as life science, medical science, chemistry.The rotor of centrifuge is large, and rotating speed is high.At present, if centrifuge upper cover and housing cover are all rely on the Elastic buckle of working of plastics to carry out locking cover rotor to fly to split, rotor can knock lid, causes upper cover to be opened, and will damage experimenter, dangerous.Therefore the fastening type structure of prior art is unreliable, lacks safety.

Summary of the invention

The purpose of this utility model is the problems referred to above that solution prior art exists and provides a kind of locking device of Microplate centrifuge, and changing fastening type structure is hook lock formula structure, and is opened and closed by solenoid control, avoids unexpected unlatching, improves safety in utilization.

Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: the locking device of Microplate centrifuge, comprise housing, the upper cover coordinated is opened and closed with housing, it is characterized in that described housing fixes a mount pad, described mount pad is arranged a pivot, described pivot is nested with a latch hook, described latch hook coordinates an electromagnetic valve, the lock section on described latch hook and the hook portion above covered form plug-in type and open and close and coordinate.The buckle-type changing prior art is plug-in type, and during locking, the effect that hook portion forms bolt is inserted in lock section, even if rotor can knock lid, lock section also almost can not be made to exit hook portion, adopt electromagnetic valve to control to open and close simultaneously, open and close accurate and reliably, centrifuge used more safe and reliable.

As improving further and supplementing technique scheme, the utility model adopts following technical measures: described pivot is nested with a latch hook return unit, and one end of described latch hook return unit is fixed on described mount pad, and the other end is fixed on latch hook.When the state of hook portion formation lock is inserted in lock section, latch hook return unit puts aside reset force.When latch hook loses the active force of electromagnetic valve, the reset force that latch hook return unit is put aside makes latch hook rotate, and finally makes latch hook exit hook portion, and upper cover is opened.

Described mount pad is fixedly installed the first dead bolt, described latch hook is fixedly installed the second dead bolt, described latch hook is provided with one guide groove, and described guide groove is in circular arc centered by pivot, and described first dead bolt passes described guide groove and have extension outside latch hook.The setting of gathering sill, makes the first dead bolt be arranged on the interior zone of latch hook, does not affect again the effect of the first dead bolt, makes the volume of latch hook return unit reduce simultaneously, has offered gathering sill, also reduced the weight of latch hook.One end of latch hook return unit is connected on extension.

Described electromagnetic valve comprises electromagnetic valve body, by the solenoid shaft of electromagnetic valve body drive actions, cannelure is offered in described solenoid shaft upper end, described cannelure arranges a transverse axis, the edge of described latch hook arranges a bayonet socket, the internal diameter of described bayonet socket and the external diameter of described transverse axis match, and when described lock section is positioned at the position of inserting described hook portion, described transverse axis inserts described bayonet socket.When hook portion is inserted in lock section, during upper cover locking, the edge of the position latch hook corresponding with cannelure inserts cannelure, and transverse axis is positioned at bayonet socket, and electromagnetic valve is in off-position, and solenoid shaft is in the state of elongation.When solenoid valves, solenoid shaft is pulled down by electromagnetic valve body, and transverse axis departs from bayonet socket, and latch hook rotates under the effect of latch hook return unit, makes lock section exit hook portion, and upper cover is opened.The outfit of bayonet socket and transverse axis avoids latch hook to rotate under the effect of latch hook return unit, plays the effect of location.

Described mount pad also arranges a microswitch, the below of described microswitch arranges a contact cantilever, described latch hook edge is provided with a touching extension arm coordinated with described contact cantilever, described contact cantilever and touching extension arm all has the part mutually overlapped respectively, when described lock section is positioned at the position of inserting described hook portion, described contact cantilever touches the contact of described microswitch.When latch hook is rotatably inserted in the process of hook portion, touching extension arm promotes contact cantilevered swing, until when latch hook insertion hook portion puts in place, contact cantilever touches the contact on microswitch, makes Microplate centrifuge start working.

Described touching extension arm and described hook portion lay respectively at the diagonal position of described latch hook.Both touched extension arm and hook portion is set in parallel, when latch hook insert hook portion put in place time, touching extension arm be horizontal positioned, and now, contact cantilever is also horizontal positioned, and contact cantilever then can make contact trigger completely.

Described lock section is U-shaped, and an arm in described U-shape lock portion is short torque arm, and another arm is long hammerlock, and described short torque arm coordinates with the lock chamber grafting in hook portion, and described long hammerlock and hook portion lower wall are against coordinating.

The beneficial effect that the utility model has: the buckle-type 1, changing prior art is plug-in type, during locking, almost can not make lock section surprisingly exit hook portion, adopts electromagnetic valve to control to open and close simultaneously, opens and closes accurately and reliably, centrifuge is used more safe and reliable.2, the fit structure of latch hook and electromagnetic valve is ingenious, and action is succinctly reliable.3, latch hook return unit is set, simplifies the parts stirring latch hook.4, drive microswitch action by latch hook action, respective outer side edges is just right, starts Microplate centrifuge work when ensureing that upper cover locks completely by microswitch.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model upper cover open mode.

Fig. 2 is the structural representation of the utility model upper cover lock-out state.

Detailed description of the invention

Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment: the locking device of Microplate centrifuge, as depicted in figs. 1 and 2, it comprises housing 1, the upper cover 2 coordinated is opened and closed with housing, described housing 1 is fixed a mount pad 3, described mount pad 3 is arranged a pivot 4, described pivot is nested with a latch hook 5, described latch hook 5 coordinates an electromagnetic valve 6, the lock section 51 on described latch hook 5 and the hook portion 21 on upper cover 2 form plug-in type and open and close and coordinate.Described lock section 51 is U-shaped, and an arm in described U-shape lock portion 51 is short torque arm 511, and another arm is long hammerlock 512, and described short torque arm 511 coordinates with the lock chamber grafting in hook portion 21, and described long hammerlock 512 and hook portion 21 lower wall are against coordinating.

Described pivot 4 is nested with a latch hook return unit 8, one end of described latch hook return unit 8 is fixed on described mount pad 3, and the other end is fixed on latch hook 5.Latch hook return unit is as a rule torsion spring.

Described mount pad 3 is fixedly installed the first dead bolt 90, described latch hook 5 is fixedly installed the second dead bolt 91, described latch hook 5 is provided with one guide groove 10, described guide groove 10 is in circular arc centered by pivot 4, and described first dead bolt 90 passes described guide groove 10 and have extension outside latch hook 5.

Described electromagnetic valve 6 comprises electromagnetic valve body 60, by the solenoid shaft 61 of electromagnetic valve body drive actions, cannelure is offered in described solenoid shaft 61 upper end, described cannelure arranges a transverse axis 63, the edge of described latch hook 5 arranges a bayonet socket 53, the internal diameter of described bayonet socket 53 and the external diameter of described transverse axis 63 match, and when described lock section 51 is positioned at the position of inserting described hook portion 21, described transverse axis 63 inserts described bayonet socket 53.Latch hook 5 is corresponding is all be arranged in cannelure with the edge of cannelure.

Described mount pad 3 is also arranged a microswitch 7, the below of described microswitch 7 arranges a contact cantilever 71, described latch hook 5 edge is provided with a touching extension arm 52 coordinated with described contact cantilever 71, described contact cantilever 71 and touching extension arm 52 all has the part mutually overlapped respectively, when described lock section 51 is positioned at the position of inserting described hook portion 21, described contact cantilever 71 touches the contact of described microswitch 7.

Described touching extension arm 52 and described hook portion 51 lay respectively at the diagonal position of described latch hook 5.

During use, when upper cover is from the status transition opened to lock-out state, hook portion 21 presses down the long hammerlock 512 of lock section 51, latch hook 5 inverse clock is rotated, and when turning to certain angle, hook portion 21 is inserted in short torque arm 511, transverse axis 63 snaps in bayonet socket, and latch hook 5 stops operating, and upper cover latch hook pins.In the process that latch hook 5 rotates, touching extension arm 52 promotes contact cantilever 71 and swings, when upper cover latch hook pins, contact cantilever 71 oppresses the contact of microswitch 7, and microswitch 7 sends the work of signal enabling Microplate centrifuge to the controller in Microplate centrifuge.When opening upper cover, controller in Microplate centrifuge sends letter to electromagnetic valve, solenoid valves, solenoid shaft 61 is moved to electromagnetic valve body 60 direction, transverse axis 63 is deviate from from bayonet socket, latch hook 5 rotates at the clockwise under influence of latch hook return unit 8, and short torque arm 511 is deviate from from hook portion 21, and upper cover is opened.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.In the above-described embodiments, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (7)

1. the locking device of Microplate centrifuge, comprise housing (1), the upper cover (2) coordinated is opened and closed with housing, it is characterized in that described housing (1) fixes a mount pad (3), described mount pad (3) is arranged a pivot (4), described pivot is nested with a latch hook (5), upper cooperation one electromagnetic valve (6) of described latch hook (5), the lock section (51) on described latch hook (5) and the hook portion (21) on upper cover (2) form plug-in type and open and close and coordinate.

2. the locking device of Microplate centrifuge according to claim 1, it is characterized in that described pivot (4) being nested with a latch hook return unit (8), one end of described latch hook return unit (8) is fixed on described mount pad (3), and the other end is fixed on latch hook (5).

3. the locking device of Microplate centrifuge according to claim 2, it is characterized in that described mount pad (3) is fixedly installed the first dead bolt (90), described latch hook (5) is fixedly installed the second dead bolt (91), described latch hook (5) is provided with one guide groove (10), described guide groove (10) is in circular arc centered by pivot (4), and described first dead bolt (90) is through described guide groove (10) and have extension in latch hook (5) outside.

4. the locking device of the Microplate centrifuge according to Claims 2 or 3, it is characterized in that described electromagnetic valve (6) comprises electromagnetic valve body (60), by the solenoid shaft (61) of electromagnetic valve body drive actions, cannelure is offered in described solenoid shaft (61) upper end, described cannelure arranges a transverse axis (63), the edge of described latch hook (5) arranges a bayonet socket (53), the internal diameter of described bayonet socket (53) and the external diameter of described transverse axis (63) match, when described lock section (51) is positioned at the position of inserting described hook portion (21), described transverse axis (63) inserts described bayonet socket.

5. the locking device of Microplate centrifuge according to claim 4, it is characterized in that described mount pad (3) also arranges a microswitch (7), the below of described microswitch (7) arranges a contact cantilever (71), described latch hook (5) edge is provided with a touching extension arm (52) coordinated with described contact cantilever (71), described contact cantilever (71) and touching extension arm (52) all has the part mutually overlapped respectively, when described lock section (51) is positioned at the position of inserting described hook portion (21), the contact of described microswitch (7) is touched in described contact cantilever (71).

6. the locking device of Microplate centrifuge according to claim 5, is characterized in that described touching extension arm (52) and described hook portion (51) lay respectively at the diagonal position of described latch hook (5).

7. the locking device of Microplate centrifuge according to claim 6, it is characterized in that described lock section (51) is U-shaped, one arm of described U-shape lock portion (51) is short torque arm (511), another arm is long hammerlock (512), described short torque arm (511) coordinates with the lock chamber grafting in hook portion (21), and described long hammerlock (512) and hook portion (21) lower wall are against coordinating.