CN102661089B

CN102661089B - Electric pull lock for box door

Info

Publication number: CN102661089B
Application number: CN201210145556.0A
Authority: CN
Inventors: 魏超; 李赐平; 魏劭
Original assignee: XIAMEN AMPLLY BIO-TECH Inc
Current assignee: XIAMEN AMPLLY BIO-TECH Inc
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2014-06-04
Anticipated expiration: 2032-05-11
Also published as: CN102661089A

Abstract

The invention discloses an electric pull lock for a box door. The electric pull lock comprises a draw hook fixed with the box door and a lock frame fixed with a box body; the lock frame is provided wit a pair of lock wheels which can rotate relative to the lock frame and fixed with a motor; an eccentric slot hole is formed on the lock wheel; a drive shaft of the motor is fixed with a crank bar; one end of the crank bar is extended into the eccentric slot hole of the lock wheel to drive the lock wheel to rotate; one end of a torsion spring is fixed with the drive shaft of the motor, and the other end of the torsion spring is fixed with the lock wheel; one part of one end face of the lock wheel, which is close to the outer edge is provided with an annular bulge with an opening; the hook end of the draw hook can be matched with the end and the inner circumferential surface of the annular bulge; when the hook end of the draw hook is matched with the inner circumferential surface of the annular bulge, and the lock wheel is rotated, the hook end of the draw hook and the center of the lock wheel can gradually approach each other and then keep still, and the rotation phase of the drive shaft of the motor is controlled by a controller; the hook end of the draw hook is provided with a pulley; and by using the electric pull lock, the box door can be quickly closed and locked, and the box door and the box body can pull each other tightly, and the electric pull lock is simple in structure.

Description

A kind of electronic zip of chamber door

Technical field

The present invention relates to lock for box door, especially a kind ofly make the tension and pin the electronic zip of chamber door mutually fast of chamber door and casing while being applicable to close chamber door.

Background technology

In the casing that is provided with chamber door for casing and chamber door are reliably closed, need between casing and chamber door, lockset be set, in some industrial casings, for space and outside in casing are isolated, as high speed, refrigerated centrifuge are set in casing, in the function of product, need the eccentric angle rotary head of the high speed rotary motion in instrument inner chamber, comprise acoustical vibration ripple and extraneous reliable completely cutting off that machine produces, isolated extraneous heat, the impact of cold air on the specific temperature of cabinets cavity simultaneously, therefore need chamber door and casing positiver sealing and prevent from arbitrarily opening chamber door, this just need to arrange seal and make chamber door and casing is strained mutually at chamber door inward flange, traditional lock for box door cannot make chamber door and casing mutually strain, therefore tensioning mechanism and lockset need to be set between chamber door and casing simultaneously, while closing chamber door, first make the reliable tension mutually of chamber door and casing by tensioning mechanism, and then lock door lock, reach the object that chamber door sealed and prevented from arbitrarily opening chamber door, it is cumbersome that but this conventional way is closed chamber door, speed is slow, and complicated structure.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of electronic zip of chamber door, and can quick closedown pin chamber door and make chamber door and casing is strained mutually, and simple in structure.

For achieving the above object, technical scheme of the present invention is: a kind of electronic zip of chamber door, comprise the drag hook fixing with chamber door, the lock frame fixing with casing, one lockwheel that can rotate with respect to lock frame is housed on lock frame, on lock frame, also fix a motor, lockwheel is provided with eccentric slotted hole, on the driving shaft of motor, fix a connecting lever, the eccentric slotted hole of lockwheel is stretched into drive lockwheel rotation in one end of connecting lever, one torsion spring one end and motor driving shaft fix, the other end and lockwheel fix, one end face of lockwheel is provided with the annular protrusion with opening near outward flange, the hook end of described drag hook can match with the end of described annular protrusion and inner peripheral surface, the hook end of described drag hook matches with the inner peripheral surface of described annular protrusion and while then rotating lockwheel, can make the hook end of drag hook and lockwheel center progressively near then remaining unchanged, the rotation phase of motor driving shaft is by controller control.

Further improve, hook end and the hook body of described drag hook are perpendicular, on hook end, pulley are housed, and facilitate the hook end of drag hook and end and the inner peripheral surface of described annular protrusion to match.

Preferably described motor is stepper motor or reducing motor, facilitates the control of motor driving shaft rotation phase.

The center line overlaid of the axis of preferred described motor driving shaft and lockwheel, the distance at the inner peripheral surface of described annular protrusion and lockwheel center, along progressively dwindling then and remain unchanged counterclockwise, facilitates the processing of lockwheel, makes overall structure more reasonable.

The present invention fixes due to a torsion spring one end and motor driving shaft being set, the other end and lockwheel fix, when closing chamber door, chamber door drives the hook end of drag hook to match with the end of the annular protrusion of lockwheel, force lockwheel to be rotated, lockwheel rotation can make torsion spring tighten, in the time that the hook end of drag hook continues the end of mobile release lock wheel annular protrusion, lockwheel loses constraint, the torsion of torsion spring drives lockwheel to reverse rapidly, the hook end that the inner peripheral surface of lockwheel annular protrusion just fastens rapidly drag hook makes chamber door quick closedown, and then controller makes the drive shaft turns of motor, motor driving shaft drives lockwheel rotation by connecting lever in rotation process, can make hook end and the lockwheel center of drag hook progressively close, the hook end of drag hook and lockwheel center progressively close process are also the progressively processes of tension mutually of chamber door and casing, when the drive shaft turns of motor is when setting phase place, it is nearest that the hook end of drag hook and lockwheel center are leaned on, it is the tightest that chamber door and casing draw mutually, chamber door is also locked, therefore the present invention can quick closedown pins chamber door and makes chamber door and casing is strained mutually.

On the other hand, the present invention, compared with traditional way, saves a tensioning mechanism, and structure is relatively simple, and overcomes chamber door trouble, the slow-footed problem of closing.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the front view of lockwheel of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing and concrete embodiment, the present invention is described in further detail.

Fig. 1, Fig. 2, shown in Fig. 3, a kind of electronic zip of chamber door, comprise the drag hook 1 fixing with chamber door 10, the lock frame 2 fixing with casing 20, the lockwheel 3 that can rotate with respect to lock frame 2 is installed on lock frame 2, in lockwheel 3, process an eccentric slotted hole 31 and a centre bore 32, one end face of lockwheel 3 is provided with the annular protrusion 33 with opening near outer edge, on lock frame 2, fix again a motor 4, described motor 4 can be selected stepper motor or reducing motor, on the driving shaft 41 of motor 4, fix a connecting lever 5, one end of connecting lever 5 is stretched in the eccentric slotted hole 31 of lockwheel 3 to drive lockwheel 3 to rotate, when mounted motor 4, can make the driving shaft 41 of motor 4 stretch in the centre bore 32 of lockwheel 3 and make both central axis overlaid, but driving shaft 41 external surfaces of motor 4 do not contact with the inner surface of the centre bore 32 of lockwheel 3,

The driving shaft 41 of one torsion spring 6 one end and motor 4 fixes, the other end and lockwheel 3 fix;

The hook end 11 of described drag hook 1 can be perpendicular with drag hook 1 body, pulley 7 also can be housed on the hook end 11 of described drag hook 1, drag hook 1 can by two ends 331,332 of pulley 7 and described annular protrusion 33 and inner peripheral surface 333 is tangent coordinates, then the inner peripheral surface 333 of described annular protrusion 33 progressively dwindles and remains unchanged counterclockwise with the distance at lockwheel 3 centers edge from end 331, the hook end 11 of described drag hook 1 and the inner peripheral surface 33 of described annular protrusion 33 is matched and while then rotating lockwheel 3, can make the hook end 11 of drag hook 1 then remain unchanged with lockwheel 3 centers are progressively close;

The rotational angle of the driving shaft 21 of motor 4 can be by controller control.

Operating principle of the present invention is as follows: in the time pressing lower chamber door 10, pulley 7 on drag hook 1 hook end 11 is touched the end face 331 of annular protrusion 33, force lockwheel 3 to be rotated counterclockwise, torsion spring 6 tightens simultaneously, in the time that pulley 7 moves to the end face 331 that departs from annular protrusion 33, lockwheel 3 loses reversion rapidly under the effect that constrains in torsion spring 6 torsion, inner peripheral surface 333 by annular protrusion 33 fastens rapidly pulley 7, after stopping, the driving shaft 41 of controller control motor 4 stops after being clockwise to set angle, connecting lever 5 drives lockwheel 3 dextrorotations to go to by eccentric slotted hole 31 and makes pulley 7 and lockwheel 3 the most close places, center, now chamber door 10 is progressively mutually tensioned to the tightest state and is pinned chamber door 10 by drag hook 1 and casing 20, reach sealed container door 10 and the object that prevents from arbitrarily opening chamber door 10.

In the time that needs are opened chamber door 10, driving shaft 41 dextrorotations that controller is controlled motor 4 again go back to initial position, connecting lever 7 drives lockwheel 3 to continue to turn clockwise simultaneously, pulley 7 on drag hook 1 hook end 11 will depart from annular protrusion 33 from the other end of annular protrusion 33 332, in unlocking condition, can be easy to open chamber door 10.

Below be only preferred embodiment of the present invention, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.

Claims

1. the electronic zip of a chamber door, comprise the drag hook fixing with chamber door, the lock frame fixing with casing, it is characterized in that: the lockwheel that can rotate with respect to lock frame is housed on lock frame, on lock frame, also fix a motor, lockwheel is provided with eccentric slotted hole, on the driving shaft of motor, fix a connecting lever, the eccentric slotted hole of lockwheel is stretched into drive lockwheel rotation in one end of connecting lever, one torsion spring one end and motor driving shaft fix, the other end and lockwheel fix, one end face of lockwheel is provided with the annular protrusion with opening near outward flange, the hook end of described drag hook can match with the end of described annular protrusion and inner peripheral surface, the hook end of described drag hook matches with the inner peripheral surface of described annular protrusion and while then rotating lockwheel, can make the hook end of drag hook and lockwheel center progressively near then remaining unchanged, the rotation phase of motor driving shaft is by controller control.

2. the electronic zip of a kind of chamber door according to claim 1, is characterized in that: hook end and the hook body of described drag hook are perpendicular, on hook end, pulley are housed.

3. the electronic zip of a kind of chamber door according to claim 1, is characterized in that: described motor is stepper motor or reducing motor.

4. according to the electronic zip of a kind of chamber door described in claims 1 to 3 any one, it is characterized in that: the center line overlaid of the axis of described motor driving shaft and lockwheel, the distance at the inner peripheral surface of described annular protrusion and lockwheel center is along progressively dwindling then and remain unchanged counterclockwise.