CN102661089A

CN102661089A - Electric pull lock for box door

Info

Publication number: CN102661089A
Application number: CN2012101455560A
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: 2012-09-12
Anticipated expiration: 2032-05-11
Also published as: CN102661089B

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 the chamber door lockset, especially a kind of electronic zip that makes chamber door and casing strain and pin chamber door fast each other when closing chamber door that is applicable to.

Background technology

In being provided with the casing of 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 the casing are isolated; As in casing, be provided with at a high speed, refrigerated centrifuge, need be in the function of product, comprise acoustical vibration ripple that machine produces with extraneous reliable isolated with the eccentric angle rotary head of the high speed rotary motion in the instrument inner chamber, isolated simultaneously extraneous heat, cold air are to the influence of the specific temperature of cabinets cavity; Therefore need chamber door and casing positiver sealing and prevent arbitrarily to open chamber door; This just need be provided with seal and make chamber door and casing is strained each other at the chamber door inward flange; Traditional chamber door lockset can't make chamber door and casing strain each other, therefore tensioning mechanism and lockset need be set simultaneously between chamber door and casing, makes the reliable each other tension of chamber door and casing through tensioning mechanism earlier when closing chamber door; And then lock door lock; Reach chamber door sealing and prevent arbitrarily to open the purpose of chamber door, but this way commonly used closes that chamber door is cumbersome, speed is slow, and the structure more complicated.

Summary of the invention

The technical problem that the present invention will solve provides a kind of electronic zip of chamber door, but quick closedown pin chamber door and make chamber door and casing is strained each other, 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 that fixes with chamber door, with the lock frame that casing fixes, the lock wheel that can rotate with respect to the lock frame is housed, an also fixing motor on the lock frame on the lock frame; The lock wheel is provided with eccentric slotted hole; The eccentric slotted hole that a fixing connecting lever on the driving shaft of motor, an end of connecting lever stretch into the lock wheel to be driving the rotation of lock wheel, and a torsion spring one end is with motor driving shaft fixes, the other end and lock are taken turns and fixed; One end face of lock wheel is provided with the annular protrusion of band opening near outward flange; The hook end of described drag hook can match with the end and the inner peripheral surface of said annular protrusion, and the hook end of said drag hook matches with the inner peripheral surface of said annular protrusion and can make the hook end of drag hook when rotation lock is taken turns then and lock the wheel center progressively near remaining unchanged then, and the rotation phase of motor driving shaft is controlled by controller.

Further improve, the hook end and the hook body of said drag hook are perpendicular, on the hook end pulley are housed, and make things convenient for the hook end of drag hook to match with the end and the inner peripheral surface of said annular protrusion.

Preferred described motor is stepper motor or reducing motor, makes things convenient for the control of motor driving shaft rotation phase.

The axis of preferred said motor driving shaft and the center line overlaid of locking wheel, the inner peripheral surface of said annular protrusion progressively dwindle then counterclockwise with the distance edge of locking the wheel center and remain unchanged, and the processing that convenient lock is taken turns makes overall structure more reasonable.

The present invention is owing to be provided with a torsion spring one end with motor driving shaft fixes, the other end and lock wheel fixes, and when closing chamber door, the hook end that chamber door drives drag hook matches with the end of locking the annular protrusion of taking turns; Force the lock wheel to rotate, the rotation of lock wheel can make torsion spring tighten, when the hook end of drag hook continues to move the end of release lock wheel annular protrusion; The lock wheel loses constraint; The torsion of torsion spring drives the counter-rotating rapidly of lock wheel, and the hook end that the inner peripheral surface of lock wheel annular protrusion just fastens drag hook rapidly makes the chamber door quick closedown, and and then controller makes the drive shaft turns of motor; Motor driving shaft drives the rotation of lock wheel through connecting lever in rotation process; The hook end that can make drag hook and lock wheel center progressively near, the hook end of drag hook and lock wheel center progressively near the process process that also to be chamber door progressively strain with casing each other, when the drive shaft turns of motor when setting phase place; It is nearest that the hook end of drag hook and lock wheel center are leaned on; It is the tightest that chamber door and casing draw each other, and chamber door also obtains locking, but so the present invention's quick closedown pin chamber door and make chamber door and casing is strained each other.

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

Description of drawings

Fig. 1 is a structural representation of the present invention.

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

Fig. 3 is the front view that the present invention locks wheel.

The specific embodiment

Below in conjunction with accompanying drawing and concrete embodiment the present invention is done further explain.

Fig. 1, Fig. 2, shown in Figure 3, a kind of electronic zip of chamber door, the lock frame 2 that comprises the drag hook 1 that fixes with chamber door 10, fixes with casing 20; On lock frame 2, install one and can take turns 3 with respect to the lock that lock frame 2 rotates; Locking an eccentric slotted hole 31 of processing and a centre bore 32 on the wheel 3, an end face of lock wheel 3 is provided with the annular protrusion 33 of being with opening near outer edge, a fixing again motor 4 on lock frame 2; Described motor 4 can be selected stepper motor or reducing motor for use; A fixing connecting lever 5 on the driving shaft 41 of motor 4, an end of connecting lever 5 stretch in the eccentric slotted hole 31 of locking wheel 3 and rotate to drive lock wheel 3, when motor 4 is installed; Can make the driving shaft 41 of motor 4 stretch in the centre bore 32 of lock wheel 3 and make both central axis overlaid, but driving shaft 41 external surfaces of motor 4 and lock are taken turns the inner surface of 3 centre bore 32 and do not contacted;

The driving shaft 41 of one torsion spring, 6 one ends and motor 4 fixes, the other end and lock wheel 3 fixes;

The hook end 11 of said drag hook 1 can be perpendicular with drag hook 1 body; On the hook end 11 of said drag hook 1, also pulley 7 can be housed; Drag hook 1 can be through two ends 331,332 and inner peripheral surface 333 tangent cooperate of pulley 7 with said annular protrusion 33; 331 edges progressively dwindle then and remain unchanged the distance at the inner peripheral surface 333 of said annular protrusion 33 and lock wheel 3 centers counterclockwise from the end, make the hook end 11 of said drag hook 1 rotation lock that matches with the inner peripheral surface 33 of said annular protrusion 33 then take turns the hook end 11 that can make drag hook 1 and take turns 3 centers progressively near remaining unchanged then with lock at 3 o'clock;

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

Operating principle of the present invention is following: when pressing lower chamber door 10; The end face 331 of the pulley 7 touching annular protrusions 33 on the drag hook 1 hook end 11 forces lock wheel 3 to be rotated counterclockwise, and torsion spring 6 tightens simultaneously; When pulley 7 moves to the end face 331 that breaks away from annular protrusion 33; Lock wheel 3 loses the effect counter-rotating rapidly down that constrains in torsion spring 6 torsion, and the inner peripheral surface 333 through annular protrusion 33 fastens pulley 7 rapidly, after stopping; The driving shaft 41 of controller control motor 4 stops along clockwise rotating to set angle; Connecting lever 5 drives 3 dextrorotations of lock wheel through eccentric slotted hole 31 and goes to and make pulley 7 and lock wheel 3 centers near locating, and chamber door 10 progressively was tensioned to the tightest state each other and pinned chamber door 10 through drag hook 1 and casing 20 this moment, reached sealed container door 10 and the purpose that prevents arbitrarily to open chamber door 10.

When 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 drive lock wheels 3 continue to turn clockwise simultaneously; Pulley 7 on the drag hook 1 hook end 11 will break away from annular protrusion 33 from the other end 332 of annular protrusion 33, is in unlocking condition, can be easy to open chamber door 10.

Below only be 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 that fixes with chamber door, with the lock frame that casing fixes, it is characterized in that: the lock wheel that can rotate with respect to the lock frame is housed, an also fixing motor on the lock frame on the lock frame; The lock wheel is provided with eccentric slotted hole; The eccentric slotted hole that a fixing connecting lever on the driving shaft of motor, an end of connecting lever stretch into the lock wheel to be driving the rotation of lock wheel, and a torsion spring one end is with motor driving shaft fixes, the other end and lock are taken turns and fixed; One end face of lock wheel is provided with the annular protrusion of band opening near outward flange; The hook end of described drag hook can match with the end and the inner peripheral surface of said annular protrusion, and the hook end of said drag hook matches with the inner peripheral surface of said annular protrusion and can make the hook end of drag hook when rotation lock is taken turns then and lock the wheel center progressively near remaining unchanged then, and the rotation phase of motor driving shaft is controlled by controller.

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

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

4. according to the electronic zip of each described a kind of chamber door of claim 1 to 3; It is characterized in that: the axis of said motor driving shaft and the center line overlaid of locking wheel, the inner peripheral surface of said annular protrusion progressively dwindle then counterclockwise with the distance edge of locking the wheel center and remain unchanged.