CN202377268U

CN202377268U - Locking device

Info

Publication number: CN202377268U
Application number: CN2011204510147U
Authority: CN
Inventors: 唐明; 张靖; 徐强琦; 胡智伟; 唐国震; 鲁建雄
Original assignee: WUXI QIAOLIAN METALLURGICAL MACHINERY CO Ltd
Current assignee: WUXI QIAOLIAN METALLURGICAL MACHINERY CO Ltd
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-08-15
Anticipated expiration: 2021-11-15

Abstract

The utility model relates to a locking device, which comprises a support sleeve. A through hole is arranged in the middle of the support sleeve, a cover plate is connected to the top of the support sleeve by a fastener, a spring is mounted in the through hole of the support sleeve, one end of the spring is abutted to the inner side surface of the cover plate, the other end of the spring is abutted to the top of a rack, a locking block structure is formed at the bottom of the rack, a hole is disposed on the wall surface of one side of the support sleeve, and a tooth-shaped component is mounted in the hole and connected with a handle by a hinge structure. The tooth-shaped component connected to one end of the handle is in mesh transmission with the rack, the rack can conveniently move up and down only by means of simple operation of upwards pushing and downwards pressing the handle, a rolling mill door is locked by the rack driven by the spring and the tooth-shaped component, and the locking device is simple and convenient in operation and accurate in positioning.

Description

A kind of locking device

Technical field

The utility model relates to locking device, especially is applicable to the locking device at mill Qianmen.

Background technology

Mill is the machine that difficult deformable metal thin strip such as stainless steel, silicon steel is rolled processing.Common Sendzimir mill, it comprises frame, roller system, screwdown gear, drive unit etc.Owing on the Qianmen of Sendzimir mill bearing arrangement is housed, after door was closed, the bearing arrangement in the door withstood working roll, prevented that working roll from producing axial float, also was provided with the entrance device of conveying lubricating fluid etc. in addition on the door.Need door lock tightly be closed during this mill work, thus the operate as normal of assurance milling train.The locking device at milling train of the prior art Qianmen adopts the presser type sealing usually, and the front end at the Qianmen uses a pressing plate, has the bolt hole that is cooperated with the Qianmen on the pressing plate; During locking, make pressing plate and front door lock tight fit through bolt, when opening; Unclamp bolt, take off the pressing plate back pullout (BPO).This method is simple in structure, and cost is low, but complex operation need be that intermediate connector just can make the Qianmen reach locking state through pressing plate; And during owing to milling train work, the high speed rotating of roller only is the locking that bolted pressing plate can't reliably guarantee the Qianmen, is prone to produce loosening; Can cause the working roll can't operate as normal, and have potential safety hazard, in addition because the installation and removal of pressing plate need be through the stubborn bolt of manually-operated; Strengthen workman's work workload, wasted time and energy inefficiency.

The utility model content

The applicant is unreliable to above-mentioned locking device of the prior art, and shortcomings such as installation and removal trouble provide a kind of rational in infrastructure, and are easy to operate, can accurately locate a kind of locking device of locking, thereby the Qianmen of Sendzimir mill is reliably locked.

The technical scheme that the utility model adopted is following:

A kind of locking device; Comprise support set, have a through hole in the middle of the said support set, said support set top connects a cover plate through securing member; In the said support set through hole spring is installed; Said spring one end withstands the cover plate medial surface, and its other end connects the tooth bar top, and said tooth bar bottom becomes the latch structure; Have the hole on said support set one side wall surface, tooth shaped component is installed in the said hole, said tooth shaped component connects handle through hinge arrangement.Its further technical scheme is:

Said support set through hole one side is provided with keyway, and said tooth bar moves up and down along the keyway in the support set through connecting dive key;

Said tooth bar bottom is a ligulate latch structure.

The beneficial effect of the utility model is following:

The utility model utilizes the engaged transmission of tooth-shape structure spare with the tooth bar of the connection of handle one end; Only need through on push away and press down handle simple operations can realize moving up and down of tooth bar easily; Tooth bar has been realized the locking of door under the driving action of spring and tooth shaped component; Easy and simple to handle, accurate positioning.

Because the tongue type latch structure of tooth bar bottom, when lockup state, a side of tongue type latch contacts with the internal face of door-plate; Contact-making surface is the plane, rather than contact point, and the locking area is big; Avoid the malfunctioning problem of locked point contact easy abrasion, thereby increased the reliability of locking device, and simple in structure firm; Durable in use, long service life.

The utility model utilizes dive key to be connected with support set in a side of tooth bar, and the circumferentially fixing effect of tooth bar has been played in the installation of dive key on the one hand, and keyway moves up and down the tooth bar that can lead on the other hand along the key place.

Description of drawings

Fig. 1 is the application structure sketch map of the utility model.

Fig. 2 is the structural representation of the utility model locking device.

Fig. 3 is the schematic partial sectional view of the utility model locked position.

Fig. 4 is the schematic partial sectional view of the utility model open position.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described.

As shown in Figure 1, the described locking device of the utility model, locking device 1 is installed on the upper center at Qianmen 2, and locking device 1 is embedded in the inboard at Qianmen, and locking device 1 is connected on the support through connecting rod and (does not draw among the figure), and fastening through four bolts 7.As shown in Figures 2 and 3, locking device 1 comprises support set 8, and support set 8 vertical orientation have a through hole; Support set 8 tops connect a cover plate 6 through bolt 5, in support set 8 through holes spring 11 are installed, and spring 11 1 ends withstand cover plate 6 medial surfaces; Its other end connects tooth bar 13 tops; Because spring has flexibility, and can play auto-lock function, can guarantee the accurate location of tooth bar 13; Tooth bar 13 bottoms are ligulate latch structure 14; Support set 8 right side walls have the hole in the horizontal direction, and tooth shaped component 12 is installed in the hole, and tooth shaped component 12 is connected with a joggle with tooth bar 13, and tooth shaped component 12 connects handle 4 through hinge arrangement; Support set 8 through holes left side is provided with keyway 17; Tooth bar 13 is connected in support set 8 through holes through dive key 15; Dive key 15 can not only make tooth bar circumferentially fixing in support set 8; Prevent that tooth bar 13 from producing rotation at support set 8, tooth bar 13 moves up and down along the keyway 17 in the support set 8 through connecting dive key 15.

In the actual use, when the Qianmen need be closed, closed around the rotating shaft rotation through pillar 3 in Qianmen 2; Last pushing handle 4 rotates to an angle thereby handle 4 drives profile of tooth piece 12 through hinge arrangement, makes the tooth bar 13 formative gear tooth bar engaged transmission in profile of tooth piece 12 and the support set 8; As shown in Figure 3; Being rotated counterclockwise of profile of tooth piece 12 drives tooth bar 13 and moves down, and the spring 11 at tooth bar 13 tops is to stretched, and arrives front doors 16 places along the tongue type latch 14 that keyway is moved downward to tooth bar 13 bottoms; One end face of tongue type latch 14 contacts with the internal face of front door 16, thereby reaches locking state; When Qianmen 2 need be opened, as shown in Figure 4, only need pull lower handle 4; Profile of tooth piece 12 is turned clockwise; 13 of tooth bars are moving up along keyway, promote 11 compressions of tooth bar 13 top springs, move to the tongue type latch 14 that makes its bottom on the tooth bar 13 and get back in the support set 8 and reset.Only need promptly just can realize the locking at Qianmen easily that avoided needing in the prior art to use the troublesome operations of pressing plate as intermediate connector, the utility model is easy and simple to handle, and is safe and reliable, long service life through operating grip.

More than describing is the explanation to the utility model, is not the qualification to utility model, and the utility model institute restricted portion within the protection domain of the utility model, can be done any type of modification referring to claim.

Claims

1. locking device; It is characterized in that: comprise support set, have a through hole in the middle of the said support set, said support set top connects a cover plate through securing member; In the said support set through hole spring is installed; Said spring one end withstands the cover plate medial surface, and its other end connects the tooth bar top, and said tooth bar bottom becomes the latch structure; Have the hole on said support set one side wall surface, tooth shaped component is installed in the said hole, said tooth shaped component connects handle through hinge arrangement.

2. locking device as claimed in claim 1 is characterized in that: said support set through hole one side is provided with keyway, and said tooth bar moves up and down along the keyway in the support set through connecting dive key.

3. locking device as claimed in claim 1 is characterized in that: said tooth bar bottom is ligulate latch structure.