CN202831886U

CN202831886U - Fire prevention pipeline lock

Info

Publication number: CN202831886U
Application number: CN 201220423127
Authority: CN
Inventors: 陈凤华
Original assignee: WUXI GERUITE METAL PRODUCTS CO Ltd
Current assignee: WUXI GERUITE METAL PRODUCTS CO Ltd
Priority date: 2012-08-24
Filing date: 2012-08-24
Publication date: 2013-03-27
Anticipated expiration: 2022-08-24

Abstract

The utility model discloses a fire prevention pipeline lock. The fire prevention pipeline lock comprises a lock body face board and a lock shell which is connected with the lock body face board. A lock tongue in the lock shell is provided with a guide hole. A supporting pillar which is fixedly connected onto a bottom shell is arranged in the guide hole. The lateral side of the tail portion of the lock tongue is provided with a groove, and the lock tongue can slide around in the lock shell. A cylinder-shaped key plug is arranged in the lock shell and can rotate in the lock shell. When a key is inserted into the key plug and rotates, a stirring wheel which is fixedly connected onto the periphery of the key plug drives the lock tongue to slide around through a stirring buckle. One end of a torsional spring is connected onto the bottom shell, and the other end of the torsional spring is connected onto the stirring buckle. The automatic locking of the lock tongue is achieved through the spring force. The volume of the pipeline lock is reduced, and the fireproof performance of a fireproof door is guaranteed. Meanwhile, the lock tongue can automatically stretch out, and the safety performance of a door lock is guaranteed.

Description

A kind of fire protect duct lock

Technical field

The utility model relates to the fire prevention field of lockset, especially locks without the fire protect duct of tapered end.

Background technology

Pipeline lock generally is applied on piping shaft and the labeled door, because normally pipeline, water meter or stair, ventilation stack in the conduit shaft door, labeled door, thereby antitheft requirement is lower, fire line is had relatively high expectations, and will be convenient to simultaneously open and close.Present Pipeline lock complicated structure on the market, the lock body volume is larger, and the part door-plate that lock body is installed is thinner, causes the fire line of door to descend; The section of tubing lock construction is simple, small volume, but dead bolt can auto-extending, the operator may occur and forget the situation of closing the door and causing the equipment such as pipeline in the door to be damaged.

The utility model content

The applicant is large for the complicated volume of the part lock body structure of above-mentioned existing fire protect duct lock, and the part lock body structure is too simple, the problem that dead bolt can not auto-extending, improve research, another kind of fire protect duct lock is provided, reduces the volume of Pipeline lock, guarantee the fireproof performance of labeled door; Can allow simultaneously the dead bolt auto-extending, guarantee the security performance of door lock.

The technical solution of the utility model is as follows:

A kind of fire protect duct lock comprises lock panel and the lock housing that is connected with lock panel, and described lock housing is connected and composed by drain pan and lid shell; Have dead bolt hole on the lock panel, one end of dead bolt stretches out from described dead bolt hole, described dead bolt is cuboid, have the pilot hole of waist type on the dead bolt, be provided with the cylindrical support column that is connected on the drain pan in the described pilot hole, also offer groove on the side of the afterbody of dead bolt, described dead bolt can be done in described lock housing and horizontally slip; One end of columniform key plug is inserted in the circular hole of drain pan, and the other end passes from the circular hole of described lid shell, and is nested on the fixed head that is fixed in the door-plate outside, and described key plug can rotate in described lock housing; The periphery of described key plug is fixed with thumb wheel, and described thumb wheel is positioned at described lock housing, and its side is with dialling button, and described group of button is fastened in the described groove, rotates when key inserts in the described key plug, and the moving described dead bolt of cingulum of dialling on the described thumb wheel horizontally slips; Returning apparatus has torsion spring in the described lock housing, and an end of described torsion spring is connected on the drain pan, and the other end is connected to dial and buckles, and the spring section suspending apparatus of torsion spring is in described lock housing.

It is further characterized in that:

The edge of described groove is with hypotenuse, and described hypotenuse is positioned at the junction of the side of the edge of described groove and described dead bolt, when dead bolt is in the lock state, and the end face of described group of button and described hypotenuse butt;

Described thumb wheel has two straight flanges that are parallel to each other, and is respectively the first straight flange and the second straight flange, when dead bolt is in the lock state, and the inwall butt of the first straight flange and described drain pan, the lower side butt of the second straight flange and described dead bolt;

The inside of described support column is with axial screwed hole;

The external part of described dead bolt is the inclined-plane.

The beneficial effects of the utility model are as follows:

Three critical pieces of thumb wheel that the utility model inside only has dead bolt, torsion spring and is connected with key plug, simple in structure, the lock body volume is small and exquisite, and therefore the installing hole of offering on the labeled door diminishes, and has strengthened the fireproof performance of door; By the spring force of torsion spring, thumb wheel can drive voluntarily dead bolt and enter lock-out state in addition, and door can autoshutdown, has avoided because forget the accident of closing the door and occuring; The utility model can be without lock cylinder, and same key can insert in the key plug of the same type, further simplified lock body structure, also the inspection of the equipment such as the pipeline in the handled easily person opposite house, water meter.

Description of drawings

Fig. 1 is the partial sectional view of the utility model front view.

Fig. 2 is the front view of the utility model installment state, and broken section.

Fig. 3 is the utility model installment state left view.

Fig. 4 is the front view of the thumb wheel in the utility model.

The specific embodiment

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

As shown in Figure 1 and Figure 2, the utility model comprises lock panel 1 and the lock housing that is connected with lock panel 1, and described lock housing is connected and composed by drain pan 4 and lid shell 10; Have dead bolt hole on the lock panel 1, an end of dead bolt 2 stretches out from described dead bolt hole, and dead bolt 2 is rectangular structure, and the external part of dead bolt 2 is the inclined-plane; Have the pilot hole 3 of waist type on the dead bolt 2, be provided with the cylindrical support column 9 that is connected on the drain pan 4 in the pilot hole 3, also offer groove 12 on the side of the afterbody of dead bolt 2, dead bolt 2 can do horizontally slipping in described lock housing under the common guide effect of described dead bolt hole and support column 9.One end of columniform key plug 8 is inserted in the circular hole of drain pan 4, passes the circular hole of the other end from lid shell 10, and is nested on the fixed head 14 that is fixed in door-plate 16 outsides, and key plug 8 can rotate in described lock housing.The periphery of key plug 8 is fixed with thumb wheel 7, thumb wheel 7 is positioned at described lock housing, its thickness is identical with the height of drain pan 4 inside, thereby restriction key plug 8 is in axial movement, the side of thumb wheel 7 is with dialling button 6, dial button 6 and be fastened in the groove 12, rotate when key 15 inserts in the key plugs 8, the button 6 of dialling that is connected on the thumb wheel 7 of key plug 8 peripheries drives dead bolts 2 and horizontally slips; Returning apparatus has torsion spring 13 in the described lock housing, and an end of torsion spring 13 is fastened at one piece of nail on the screw on the drain pan 4, and the other end passes the circular hole 18 of dialling on the button 6, is fixed on and dials on the button 6, and the spring section suspending apparatus of torsion spring 13 is in described lock housing.

As shown in Figure 1, the edge of the groove 12 of dead bolt 2 afterbodys is with hypotenuse 5, and hypotenuse 5 is positioned at the junction of the side of the edge of groove 12 and dead bolt 2, when dead bolt 2 is in the lock state, dials end face and hypotenuse 5 butts of button 6, thereby dead bolt 2 can not be retracted voluntarily.

Such as Fig. 1 and shown in Figure 4, thumb wheel 7 outer is with two straight flanges that are parallel to each other, and is respectively the first straight flange 17-1 and the second straight flange 17-2; When dead bolt 2 is in the lock state, the inwall butt of the first straight flange 17-1 and drain pan 4, the lower side butt of the second straight flange 17-2 and dead bolt 2, thus limited the rotational angle of key plug 8, prevent from that key plug 8 from rotating excessively and making to dial the outside that button 6 forwards groove 12 to.

As shown in Figure 1 and Figure 2, the drain pan 4 of described lock housing is connected by screw 11 with lid shell 10, outside the support column 9 of removal apparatus in gathering sill 3, also is fixed with two support columns 9 on the drain pan 4, and there is axial screwed hole the inside of support column 9, in order to attachment screw 11.

7 three critical pieces of thumb wheel that the utility model inside only has dead bolt 2, torsion spring 13 and is connected with key plug 8, simple in structure, the lock body volume is small and exquisite, and the installing hole of therefore offering at labeled door is less, has strengthened the fireproof performance of door; By the spring force of torsion spring, thumb wheel can drive voluntarily dead bolt and enter lock-out state in addition, and door can autoshutdown, has avoided because forget the accident of closing the door and occuring; Consider the installation environment of fire protect duct lock, key plug 8 of the present utility model can use the simple plug of not being with lock cylinder, same key can insert in a plurality of key plugs of the same type 8, both simplified lock body structure, also the inspection of the equipment such as the pipeline in the handled easily person opposite house, water meter.

It should be noted that at last: above description is to explanation of the present utility model, is not to restriction of the present utility model, and the utility model limited range is referring to claim.In the situation of the utility model spirit, the utility model can be done any type of change.

Claims

1. a fire protect duct lock comprises lock panel (1) and the lock housing that is connected with lock panel (1), and lock housing is connected and composed by drain pan (4) and lid shell (10); Lock panel has dead bolt hole on (1), and an end of dead bolt (2) stretches out from described dead bolt hole; It is characterized in that: dead bolt (2) is cuboid, have the pilot hole (3) of waist type on the dead bolt (2), be provided with the cylindrical support column (9) that is connected on the drain pan (4) in the pilot hole (3), also offer groove (12) on the side of the afterbody of dead bolt (2), dead bolt (2) can be done in described lock housing and horizontally slip; One end of columniform key plug (8) is inserted in the circular hole of drain pan (4), and the other end passes from the circular hole of lid shell (10), and is nested on the fixed head (14) that is fixed in door-plate (16) outside, and key plug (8) can rotate in described lock housing; The periphery of key plug (8) is fixed with thumb wheel (7), thumb wheel (7) is positioned at described lock housing, its side is with dialling button (6), dialling button (6) is fastened in the groove (12), rotate when key (15) inserts in the key plug (8), button (6) the drive dead bolt (2) of dialling on the thumb wheel (7) horizontally slips; Returning apparatus has torsion spring (13) in the described lock housing, and an end of torsion spring (13) is connected on the drain pan (4), and the other end is connected to be dialled on the button (6), and the spring section suspending apparatus of torsion spring (13) is in described lock housing.

2. a kind of fire protect duct as claimed in claim 1 is locked, it is characterized in that: the edge of groove (12) is with hypotenuse (5), hypotenuse (5) is positioned at the junction of the side of groove (12) edge and dead bolt (2), when dead bolt (2) when being in the lock state, dial end face and hypotenuse (5) butt of button (6).

3. a kind of fire protect duct as claimed in claim 1 is locked, it is characterized in that: thumb wheel (7) has two straight flanges that are parallel to each other, respectively the first straight flange (17-1) and the second straight flange (17-2), when dead bolt (2) when being in the lock state, the inwall butt of the first straight flange (17-1) and drain pan (4), the lower side butt of the second straight flange (17-2) and dead bolt (2).

4. a kind of fire protect duct as claimed in claim 1 is locked, and it is characterized in that: the inside of support column (9) is with axial screwed hole.

5. such as the arbitrary described a kind of fire protect duct lock in the claim 1 to 3, it is characterized in that: the external part of dead bolt (2) is the inclined-plane.