CN2546582Y - Fireproof door lock with anti-theft structure - Google Patents

Abstract

The utility model discloses a fireproof door lock with an anti-theft structure, which is characterized in that an anti-theft bolt is suspended on a lock seat, a clamp spring rod is suspended on the left side of the anti-theft bolt, a compression spring is fixedly connected below the clamp spring rod, the clamp spring rod is pushed to a high point by the aid of the compression spring, the clamp spring rod stretches across under a sliding rail of the anti-theft bolt and stretches across to the lower part of an L-shaped clamp plate transverse plate, the L-shaped clamp plate transverse plate is pressed by the clamp spring rod, when the door is closed, the anti-theft bolt is retracted into the lock seat by the pushing of the clamp plate, the clamp spring rod is lowered to a low point by the aid of the sliding rail difference of the anti-theft bolt, so that the L-shaped clamp plate transverse plate is pushed out by the aid of the spring in the L-shaped clamp plate and is lowered to the low point, the front end of the L-shaped clamp plate is further protruded out of 1 and is clamped on a step seat, thereby the bolt can not be retracted into the lock, and can prevent a prying thief from unlocking and entering, and has practicability and safety.

Description

Fireproof door lock with anti-theft structure

technical field

The utility model relates to a lockset, in particular to a fireproof door lock with an anti-theft structure.

Background technique

As shown in Figure 1, the traditional fireproof door lock A utilizes a door bolt B to be fixed in the clamping plate C to achieve the function of closing the door lock. However, when the thief uses an elastic and firm sheet from the outside, The door bolt B can be pushed into the traditional fireproof door lock A by cutting from top to bottom through the door crack, so that the door lock can be easily opened and entered into the house, as shown in Figure 2, and then the property in the house will be stolen by thieves Take, the loss is heavy, and the personnel in this house is also easily injured its life by the thief or gangster, really lacks practicability and safety.

It can be seen from the above that the traditional fire door lock has the following disadvantages:

1. The fire door lock is easy to be opened by thieves.

2. The property in the house is stolen by thieves, resulting in heavy losses.

3. People in the house are vulnerable to thieves or gangsters harming their lives.

4. Not practical.

5. Not safe.

Therefore, how to improve the above deficiencies is the technical difficulty that the utility model intends to solve.

For this reason, the author in the present utility model relies on the professional accomplishment and technical idea that oneself possesses and the experience that oneself are engaged in related industries, after repeated tests and improvements, finally draws the fireproof door lock with anti-theft structure in the present utility model .

Contents of the invention

The fireproof door lock with anti-theft structure in the utility model is mainly to solve various problems caused by the lack of anti-theft function of the existing fireproof door locks.

The fireproof door lock with anti-theft structure in the utility model mainly has an anti-theft door bolt suspended on the lock seat, and a circlip rod is suspended on the left side of the anti-theft door bolt, and a compression spring is fixedly connected below the circlip rod. With the help of the compression spring, the spring rod is pushed up to the highest point. The spring rod spans under the slide rail of the anti-theft door bolt, and extends across to the bottom of the L-shaped clamping plate, and uses the spring rod to press against the L-shaped When the door is closed, the anti-theft door bolt is retracted into the lock seat by the push of the card board, and the spring bar is lowered to the lowest point by means of the slide rail position difference of the anti-theft door bolt, so that the L-shaped card board is horizontally locked. The plate is pushed out with the help of the spring in it and the spring lever is lowered to a low point, and the front end of the L-shaped clamping plate is further protruded from the door bolt 1, and is fixed on the stepped seat, so that the door bolt cannot be retracted into the lock seat Inside, it achieves the function of locking the bolt and prevents thieves from unlocking and entering, which is practical and safe.

Description of drawings

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a three-dimensional schematic view of a traditional fire door lock in a combined state;

Fig. 2 is the embodiment diagram of traditional fireproof door lock;

Fig. 3 is a three-dimensional structural schematic diagram of the fireproof door lock in the combined state in the utility model;

Fig. 4 is a three-dimensional exploded schematic view of the fireproof door lock in the present utility model;

Fig. 5 is the embodiment diagram one of the fireproof door lock in the utility model;

Fig. 6 is the second embodiment of the fireproof door lock in the utility model;

Fig. 7 is the third embodiment of the fireproof door lock in the utility model;

Fig. 8 is the fourth embodiment of the fireproof door lock in the utility model.

Detailed ways

As shown in Figures 3, 4, and 8, the fireproof door lock 1 in the utility model is used in conjunction with the clamp 2, wherein the fireproof door lock 1 includes a lock cover 3, a V-shaped pressure bar 7, a lock seat 11, a lock Latch 21, an L-shaped clamp 31, an anti-theft door bolt 37 and a jumper bar 40.

Wherein, the lock base 11 is drilled with a through hole 10 behind it, and the through hole 10 is connected in series with the through hole 9 on the V-shaped pressure bar 7, that is, the fixing pin 15 locked on the left side of the through hole 10 is used to pair the V-shaped Depression bar 7 is positioned; In the lock seat 11, a tilting seat 5 is suspended, and a C-shaped buckle 6 is fastened on the bottom side of the tilting seat 5, which can be pushed by using the tilting seat 5 and the C-shaped buckle 6. The V-shaped pressing rod 7 moves; a through hole 12 is drilled in front of the lock seat 11, and the through hole 12 is used to connect in series with the through hole 25 of the lock bolt 21 and the through hole 36 of the anti-theft door bolt 37, that is, to use the through hole 12, the positioning screw 13 locked on the right side and the nut 17 locked on the left side of the screw 13 are used to locate the lock bolt 21 and the anti-theft door bolt 37; 20 is connected in series with the through hole 30 of the L-shaped clamp 31, that is, the positioning pin 22 is placed in the through hole 20 to achieve the series connection of the latch 21 and the L-shaped clamp 31, and at the same time, the positioning pin 22 is fixed in front of the There is a snap ring pin 23, and the snap ring pin 23 is hooked with an extension spring 26, and the other end of the extension spring 26 is hooked on the snap ring pin 14 located at the front end of the lock seat 11, by means of the extension spring 26 The pull of the latch can make the latch 21 protrude from the position outside the lock seat 11; a sleeve 27 is provided in the through hole 25 in front of the snap ring pin 23, and the latch 21 can not be rotated when the sleeve 27 is used. Jamming occurs. On the inner surface of the latch 21, a concave hole seat 28 is drilled, a compression spring 29 is suspended below the concave hole seat 28, and the other end of the compression spring 29 is suspended on the concave hole seat of the L-shaped clamping plate 31. 32; at the same time, the latch 21 is drilled with a through hole 34 below it, and a positioning pin 52 is embedded in the through hole 34. At this time, the compression spring 29 is used to push against the L-shaped clamping plate 31, and further stop the position The pin 52 makes the front end 44 of the L-shaped clamping plate 31 exposed outside the latch 21; Connect a jump ring bar 40, then a compression spring 41 is affixed to the front bump of the jump ring bar 40, and the other end of the compression spring 41 is inserted in the concave hole seat 19 of the lock seat 11, and then the lock seat 11 is drilled with a screw hole 18, and a screw 43 is locked in the screw hole 18, and the screw 43 is passed through the through hole 42 of the ring rod 40 and the ring rod 40 is fixed on the lock seat 11, Utilize compression spring 41 to push down jumper bar 40, thereby make jumper bar 40 push against L-shaped clip plate horizontal plate 51 and do upward extension and descending motion; The rotation of the anti-theft door bolt 37 between the high point 49 of the slide rail and the low point 50 of the slide rail makes the spring bar 40 move up and down, and a sleeve 33 is embedded in the through hole 36 in the anti-theft door bolt 37. The sleeve 33 can prevent the anti-theft door bolt 37 from being stuck when rotating, and a through hole 35 is drilled on the rear side of the sleeve 33, and a snap ring pin 38 is fixedly connected to the left side of the through hole 35. Circlip pin 38 is hooked with a tension spring 39, and the other end of this tension spring 39 is hooked on the circlip pin 16 of lock seat 11, thereby can pull against antitheft door bolt 37 protruding lock seat by means of this tension spring 39 11 outboard position.

When pressure is applied to the rear end 47 of the V-shaped pressing rod 7, the front end 46 of the V-shaped pressing rod 7 is raised and pressed against the L-shaped clamping plate 31 by using the leverage principle of the V-shaped pressing rod 7, as shown in Figure 6 and Figure 7 As shown, the front end 44 of the L-shaped clip 31 is further retracted into the latch 21, and the front end 44 of the L-shaped clip 31 is not stuck against the stepped seat 45, so as to achieve the function of unlocking. Again because the jumper bar 40 straddles under the slide rail of the anti-theft door bolt 37, as shown in Figure 5 and Figure 6, and extends across to the below of the L-shaped clip horizontal plate 51, when the door is closed, the anti-theft door bolt 37 is Pushed by the clamping plate 2, it retracts into the lock seat 11, and the front end 48 of the snap ring rod 40 drops from the high point 49 of the slide rail to the low point 50 of the slide rail by means of the height difference of the anti-theft door bolt 37 slide rails, and The L-shaped clamping plate 31 is released by means of the spring in the latch 21, thereby causing the front end 44 of the L-shaped clamping plate horizontal plate 51 to protrude from the front of the latch 21, and the front end 44 of the L-shaped clamping plate 31 is clamped. On the ladder 45, the latch 21 cannot be retracted into the lock seat 11 to achieve the function of locking the latch 21, and prevent thieves from brushing the latch 21 with a sheet and entering the house, which is safe and practical sex.

In summary, the fireproof door lock with anti-theft structure in the utility model has the following advantages:

1. Thieves cannot use tools to open the door lock.

2. It can make the storage of property in the house safe and worry-free.

3. If there are old and weak women and children in the house, you should feel at ease.

4. It is practical.

5. It is safe.

6. It has the utilization value of the industrial and commercial circles.

Claims (1)

1. A fireproof door lock with an anti-theft structure, comprising a fireproof door (1) locked with a clamp (2), wherein the fireproof doorlock includes a lock cover (3), a pressure rod (7), and a lock seat (11), a lock bolt (21), another clamp (31), an anti-theft door bolt (37), a spring bar (40); The lock seat (11) is drilled with a through hole (10) at its rear, and the through hole passes through the through hole (9) of the pressure rod (7) through the fixed pin (15) locked in on its left side. ) and connected in series with the pressure bar; in the lock seat (11) is suspended a tilting push seat (5) that can push the pressure bar (7) to move, and a buckle is fixed on the bottom side of the tilt push seat ring (6); the lock seat (11) is drilled with a through hole (12) in front of it, and the through hole passes through the set screw (13) locked on the right side and the screw locked on the left side of the screw. The cap (18) passes through the through holes (25, 36) of the lock bolt (21) and the anti-theft door bolt (37) and is connected in series with the lock bolt and the anti-theft door bolt; The rear side drill is provided with a through hole (20), which is connected in series with the clamp plate by inserting a certain pull pin (22) and passing through the through hole (30) of the clamp plate (31); A snap ring pin (23) is fixedly connected to the front of the pin (22), and the snap ring pin (23) is connected with a tension spring (26) that can make the latch (21) protrude outside the lock seat (11). ), and the other end of the tension spring (26) is hooked on the snap ring pin (14) in front of the lock seat (11). 21) The sleeve (27) that is clamped when it rotates; it is characterized in that: a concave hole seat (28) is drilled in the inner surface of the lock bolt (21), and a compression hole is connected below the concave hole seat. Spring (29), the other end of the compression spring (29) is connected to the recessed hole seat (32) in the clamp (31), and at the same time, a through hole (34) is drilled below the latch ), a positioning pin (52) is embedded in the through hole (34); a clamping plate (51) is protruded on the left side of the concave hole seat (32), and a clamping plate (51) is provided on the left side of the step plate (51) ) is crimped with a circlip lever (40) on the lower side of the circlip lever (40), and a compression spring (41) is affixed to the front bump of the circlip lever (40), and the other end of the compression spring (41) is inserted into the lock seat (11) in the recessed hole seat (19); said lock seat (11) is drilled with a screw hole (18) again, and in this screw hole (18) the inner screw is provided with a can pass through the said snap ring rod (40 ) through hole (42) and can lock the screw (43) of the snap ring bar (40), and then on the upper side of the snap ring bar (40) is provided with an anti-theft door latch (37), the anti-theft door latch (37 ) has a slide rail from the high point to the low point, and at the same time, a sleeve (33) that can prevent the anti-theft bolt from being locked when it is rotated is sleeved in the through hole (36) of the anti-theft bolt (37), Drill a through hole (35) at the rear side of the sleeve (33) again, and a snap ring pin (38) is affixed to the left side of the through hole, and the snap ring pin (38) is hooked with a tension spring (30), and the other end of this tension spring hooks up the snap ring pin (16) that is connected in lock seat.

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