CN201133121Y - Lock bolt of fireproof door lock - Google Patents

Abstract

The utility model relates to a set bar of fire prevention lock, it includes a bolt bottom plate, a lock seat, a lock tongue, a clamp plate and a theftproof piece, this lock seat has a first lateral part, a second lateral part for first lateral part, a third lateral part of connecting first lateral part and second lateral part, this lock tongue telescopically pivot is located in the lock seat, and it has a bolt portion and a drive portion that forms in bolt portion one end, this clamp plate has one and presses splenium, a stop portion and a stirring portion that connects according to splenium and stop portion of the corresponding bolt portion of lock tongue, this stirring portion can swing the pivot locate in the lock seat and can stir the drive portion of lock tongue, this theftproof piece telescopically pivot is located in the lock seat, the bolt portion of lock tongue can push away the theftproof piece, so that the theftproof piece retracts in the lock seat, and the bolt portion of the stop of clamp plate can stop. The utility model discloses can firmly maintain the shutting state, improve the theftproof nature of fire door lock by a wide margin.

Description

Fire door lock bolt

technical field

The utility model relates to a lock bolt, in particular to a lock bolt of a fireproof door lock with an anti-theft part.

Background technique

Usually, when the bolt of the fireproof door lock is locked, its bolt will be buckled in the hole of the door frame to maintain the locked state. Generally, it is very easy to be pulled and retracted into the lock seat to cause unbolting, which greatly reduces the anti-theft performance of the fire door lock.

In view of the above-mentioned defects in the existing fireproof door lock bolts, the designer actively researches and innovates based on years of rich practical experience and professional knowledge in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a The lock bolt of the fireproof door lock with a new structure can improve the lockbolt of the general existing fireproof door lock, making it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created.

Contents of the invention

The main purpose of the utility model is to overcome the defects of the existing fireproof door lock bolts, and provide a new type of fireproof door lock bolt. The technical problem to be solved is to make it stably maintain the locked state, Greatly improve the anti-theft performance of fire door locks.

The purpose of this utility model and the solution to its technical problems are achieved by adopting the following technical solutions. According to the lock bolt of the fireproof door lock proposed by the utility model, it includes a lock bolt bottom plate, which has an upper surface; a lock seat, which has a first side portion and a second side portion opposite to the first side portion . A third side portion connecting the first side portion and the second side portion, wherein the first side portion and the second side portion are fixed to the bolt bottom plate, and the third side portion faces the side of the lock bolt bottom plate Upper surface; a lock tongue, telescopically pivoted in the lock seat, which has a latch portion and a driving portion formed at one end of the latch portion; a pressing plate, which has a pressing portion, a pair of corresponding locks The stop part of the latch part of the tongue and a toggle part connecting the pressing part and the stop part, the toggle part is swingably pivoted in the lock seat and can toggle the driving part of the dead bolt; And an anti-theft part, which is telescopically pivoted in the lock seat, the latch part of the deadbolt can push the anti-theft part, so that the anti-theft part can be retracted into the lock seat, and the stop part of the pressing plate can Block the latch portion of the deadbolt.

The purpose of this utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The lock bolt of the aforementioned fireproof door lock further includes at least one guide rod, and the first side and the second side of the lock seat are respectively formed with an arc guide groove, each arc guide groove corresponds to each other, the lock The driving part of the tongue has a through hole, the through hole corresponds to each arc guide groove, and the guide rod passes through each arc guide groove and the through hole.

The aforementioned lock bolt of the fireproof door lock, wherein the anti-theft part has a sliding bottom plate arranged between the latch portion and the lock bolt bottom plate and a convex plate formed at one end of the sliding bottom plate, the latch portion can be Push the convex plate of the anti-theft piece.

In the aforementioned lock bolt of a fireproof door lock, the convex plate of the anti-theft component can limit the stop portion of the pressing plate.

In the aforementioned lock bolt of a fireproof door lock, wherein the stop portion of the pressing plate presses against the sliding bottom plate of the anti-theft component.

The aforementioned lock bolt of the fireproof door lock further includes a first elastic element, which is pivotally installed in the lock seat, and one end of the first elastic element presses against the toggle portion of the pressing plate.

The aforementioned lock bolt of the fireproof door lock, wherein the sliding bottom plate of the anti-theft element has a first end, a second end and a third end opposite to the second end, and the convex plate forms the first end of the sliding bottom plate .

The aforementioned lockbolt of the fireproof door lock, wherein the anti-theft part further has a first side plate and a second side plate, the first side plate is formed at the second end of the sliding bottom plate, and the second side plate formed at the third end of the sliding bottom plate.

The lock bolt of the aforementioned fireproof door lock further includes a slide bar, and the first side and the second side of the lock base respectively form a chute, each chute corresponds to each other, and the anti-theft piece also has a The pivot holes of the first side plate and the second side plate correspond to the sliding slots, and the sliding rods are passed through the sliding slots and the pivot holes.

The aforementioned lock bolt of the fireproof door lock, wherein the toggle portion of the pressing plate has a first side, a second side opposite to the first side, a first flange protruding from the first side, and a The second flange protrudes from the second side, the first side plate of the anti-theft component corresponds to the first flange, and the second side plate of the anti-theft component corresponds to the second flange.

In the lock bolt of the aforementioned fireproof door lock, a first lug is formed at one end of the first side plate, and a second lug is formed at one end of the second side plate, and the first lug and the second lug are respectively opposite to each other. Should be the first flange and the second flange.

In the aforementioned lockbolt of a fireproof door lock, the first lug and the second lug contact the first flange and the second flange respectively.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. It can be seen from the above that in order to achieve the above purpose, the utility model provides a lock bolt of a fireproof door lock, which includes a lock bolt bottom plate, a lock seat, a lock tongue, a pressure plate and an anti-theft piece, which can be locked by the lock While the tongue retracts into the lock seat, a latch portion of the dead bolt pushes the anti-theft piece, so that the anti-theft piece and the dead bolt retract into the lock seat together. After closing the door, the dead bolt will stretch out and Buckle in a card hole of a door frame, and the anti-theft part will be stopped by the door frame and be limited in the lock seat, and a stop part of the pressure plate originally limited by the anti-theft part will be displaced to the Behind the bolt part of the lock tongue, when a thief intends to deliberately pry the lock tongue open with external force or destructive objects, the stopper part of the pressing plate can block the latch part of the lock tongue, so as to prevent the lock tongue from retracting into the lock seat and untied. By means of the above technical solution, the utility model can stably maintain the locked state and greatly improve the anti-theft performance of the fireproof door lock.

The utility model has the above-mentioned advantages and practical value, and it has great improvement in product structure and function, has remarkable progress in technology, and has produced easy-to-use and practical effects, and is more effective than existing fireproof door locks. The lock bolt has enhanced outstanding functions, so it is more suitable for practical use, and has wide application value in the industry. It is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better. It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a lock bolt of a fireproof door lock according to a preferred embodiment of the present invention.

Fig. 2 is a three-dimensional assembled view of the lock bolt of the fireproof door lock according to the preferred embodiment of the present invention.

3A to 3D are schematic diagrams of the action of the lock bolt of the fireproof door lock of the preferred embodiment of the present invention.

10: Lock Bottom Plate 10a: Upper Surface

20: Lock seat 21: First side 21a: Arc guide groove

21b: Chute 22: Second side 22a: Arc guide groove

22b: Chute 23: Third side 24: Connection hole

30: Lock tongue 31: Locking part 32: Driving part

32a: through hole 33: through hole

40: Pressing plate 41: Pressing part 42: Stopping part

43: toggle part 43a: first side 43b: second side

431: First flange 432: Second flange

50: anti-theft piece 51: sliding bottom plate 51a: first end

51b: second end 51c: third end 52: raised plate

53: First side panel 53a: First lug 54: Second side panel

54a: Second lug 55: Pivot hole

61: Connecting rod 62: Guide rod 63: The first elastic element

63a: Support end 63b: Crimp end 64: Slider

65: second elastic element

70: push handle 71: pressing rod

80: door frame 81: buckle seat 82: card hole

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the specific implementation of the bicycle disc brake brake pad positioning structure proposed according to the utility model, The structure, characteristics and functions are described in detail below. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.

Please refer to Fig. 1 and shown in Fig. 2, the preferred embodiment of the lock bolt of a kind of fireproof door lock of the present invention, it comprises a lock bolt bottom plate 10, a lock seat 20, a dead bolt 30, a pressing plate 40 and a An anti-theft piece 50, the lock base plate 10 can be fixed on a fire door, the lock base plate 10 has an upper surface 10a, the lock seat 20 has a first side portion 21, and a The second side portion 22, a third side portion 23 connecting the first side portion 21 and the second side portion 22 and a connection hole 24 passing through the first side portion 21 and the second side portion 22, wherein the first The side part 21 and the second side part 22 are fixed on the lock bolt bottom plate 10, and the third side part 23 faces the upper surface 10a of the lock bolt bottom plate 10. In this embodiment, the first side part 21 forms a circle arc guide groove 21a and a slide groove 21b, and the second side portion 22 is also formed with an arc guide groove 22a and a slide groove 22b, each arc guide groove 21a of the first side portion 21 and the second side portion 22 , 22a correspond to each other, and similarly, the slide grooves 21b, 22b of the first side 21 and the second side 22 also correspond to each other, the bolt 30 is telescopically pivoted in the lock seat 20, and the lock The tongue 30 has a locking part 31, a driving part 32 formed at one end of the locking part 31 and a through hole 33 passing through the driving part 32. The through hole 33 corresponds to the connecting hole 24 of the lock base 20. In addition, The driving part 32 has a through hole 32a, and the through hole 32a corresponds to each arc guide groove 21a, 22a of the first side part 21 and the second side part 22. In this embodiment, the lock bolt further includes a connecting rod 61 and at least one guide rod 62, the connecting rod 61 is passed through the connecting hole 24 of the lock base 20 and the through hole 33 of the lock tongue 30, so that the lock tongue 30 is pivotally installed in the lock base 20, and the The guide rod 62 passes through the arc guide grooves 21a, 22a of the first side part 21 and the second side part 22 and the through hole 32a of the driving part 32, and the guide rod 62 can be inserted into each arc guide groove 21a. , 22a slide.

Please refer to FIG. 1 and FIG. 2 again, the pressing plate 40 has a pressing portion 41, a stop portion 42 corresponding to the latch portion 31, and a toggle portion 43 connecting the pressing portion 41 and the stopping portion 42. , the toggle part 43 is swingably pivoted in the lock seat 20, and the toggle part 43 can toggle the driving part 32 of the lock tongue 30 to drive the lock tongue 30 to retract into the lock seat 20, In addition, the toggle portion 43 has a first side 43a, a second side 43b opposite to the first side 43a, a first flange 431 protruding from the first side 43a, and a protruding flange 431 on the second side. The second flange 432 on the two side surfaces 43b, in this embodiment, the lock bolt further includes a first elastic element 63 pivotally arranged in the lock seat 20, the first elastic element 63 can be a support end 63 a and a torsion spring at a crimping end 63 b , wherein the supporting end 63 a abuts against the third side portion 23 of the lock seat 20 , and the crimping end 63 b is pressed against the toggle portion 43 of the pressing plate 40 .

Please refer to Fig. 1 and Fig. 2 again, the anti-theft part 50 is telescopically pivoted in the lock seat 20, the anti-theft part 50 has a sliding bottom plate 51 and a convex plate 52 formed at one end of the sliding bottom plate 51, the anti-theft part 50 The sliding bottom plate 51 is disposed between the latch portion 31 of the deadbolt 30 and the latch bottom plate 10, and the sliding bottom plate 51 has a first end 51a, a second end 51b and a corresponding to the second end 51b. The third end 51c, in this embodiment, the convex plate 52 is formed on the first end 51a of the sliding bottom plate 51, in addition, the anti-theft component 50 has a first side plate 53, a second side plate 54 and a The pivot hole 55 runs through the first side plate 53 and the second side plate 54, wherein the first side plate 53 is formed at the second end 51b of the sliding bottom plate 51, and one end of the first side plate 53 is formed with a first Lug 53a, the first lug 53a corresponds to the first flange 431 of the toggle part 43, the second side plate 54 is formed at the third end 51c of the sliding bottom plate 51, and one end of the second side plate 54 is formed There is a second lug 54a, the second lug 54a corresponds to the second flange 432 of the toggle portion 43, and the pivot hole 55 corresponds to each slide groove 21b of the first side portion 21 and the second side portion 22 , 22b, preferably, the sliding bottom plate 51, convex plate 52, first side plate 53 and second side plate 54 of the anti-theft component 50 are integrally bent and formed by a metal plate, please refer to Fig. 1 and Fig. 2 again, In this embodiment, the lock bolt further includes a sliding rod 64 and a pair of second elastic elements 65, and the sliding rod 64 passes through the sliding grooves 21b, 22b and 21b of the first side part 21 and the second side part 22 The pivot hole 55 of the anti-theft component 50, wherein the sliding bar 64 and the anti-theft component 50 can be interlocked with each other, and the sliding bar 64 can also be in each slide groove 21b of the first side part 21 and the second side part 22 , 22b, each second elastic element 65 is respectively arranged on the first side portion 21 and the second side portion 22 of the lock base 20, and the two ends of each second elastic element 65 are respectively fixed on the connecting rod 61 and the The sliding rod 64, preferably, each second elastic element 65 is a telescopic spring.

Please refer to FIG. 3A to FIG. 3D for schematic diagrams of the action of the lock bolt of the fire door lock. First, please refer to FIG. 3A , which is a schematic diagram of the position of each component of the lock bolt in the door-open state, and the lock bolt is used in combination with a push handle 70. In this embodiment, the latch portion 31 and The anti-theft component 50 protrudes from the lock seat 20, and the convex plate 52 of the anti-theft component 50 limits the stop portion 42 of the pressure plate 40 to prevent the stop portion 42 of the pressure plate 40 from shifting to the lock tongue 30. In addition, the first lug 53a of the first side plate 53 of the anti-theft component 50 and the second lug 54a of the second side plate 54 will contact the first flange 431 of the toggle portion 43 respectively. And the second flange 432, after that, referring to Fig. 3B, when the fire door starts to close, the latch portion 31 of the deadbolt 30 will be pressed against by a buckle seat 81 of a door frame 80 and gradually retract in the lock seat 20, while the latch portion 31 retracts, it will push the convex plate 52 of the anti-theft piece 50, so that the anti-theft piece 50 and the dead bolt 30 are retracted into the lock seat 20 together. Then, please refer to the figure 3C, when the fire door is completely closed, the latch portion 31 of the lock tongue 30 will protrude from the lock seat 20 and be snapped into a latch hole 82 of the door frame 80 to achieve locking. In addition, the anti-theft piece 50 is received The buckle seat 81 of the door frame 80 is stopped and limited in the lock seat 20, and each second elastic element 65 is in a stretched state due to the displacement of the anti-theft piece 50 and the slide bar 64. On the other hand, the pressing plate The blocking portion 42 of 40 is disengaged from the limit of the convex plate 52 of the anti-theft component 50 and shifted to the rear of the latch portion 31 of the lock tongue 30 , or, in another embodiment, the blocking portion 42 of the pressing plate 40 The sliding bottom plate 51 of the anti-theft piece 50 can be pressed directly, and when a thief intends to deliberately pry the deadbolt open by force or destruction, the stop portion 42 of the pressing plate 40 can stop the latch portion 31 of the deadbolt 30 to prevent The deadbolt 30 retracts into the lock seat 20 and unbolts, thereby stably maintaining the locked state of the lockbolt and greatly improving the anti-theft performance of the fireproof door lock. Finally, please refer to FIG. 3D, when the fireproof door is to be opened, Press the push handle 70, so that a pressing rod 71 of the push handle 70 presses down the pressing portion 41 of the pressing plate 40, and at the same time, the toggle portion 43 of the pressing plate 40 will rotate counterclockwise to stir the driving force of the dead bolt 30. part 32, and make the latch part 31 of the lock tongue 30 retract into the lock seat 20 to unbolt, and after the fire door is opened, the lock bolt will return to the state shown in Figure 3A, in this embodiment Each second elastic element 65 can reset the anti-theft component 50 so that the anti-theft component 50 protrudes from the lock seat 20 .

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those skilled in the art can use the technical content disclosed above to make some changes or modify them into equivalent embodiments without departing from the technical solution of the present utility model. Content, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (12)

1. A lock bolt of a fireproof door lock, characterized in that it comprises: a latch base plate having an upper surface; A lock seat, which has a first side, a second side opposite to the first side, a third side connecting the first side and the second side, wherein the first side and the second side portion is fixed to the bolt bottom plate, and the third side portion faces the upper surface of the bolt bottom plate; A lock tongue is telescopically pivoted in the lock base, and has a locking part and a driving part formed at one end of the locking part; A pressing plate, which has a pressing portion, a blocking portion corresponding to the latch portion of the lock tongue, and a toggle portion connecting the pressing portion and the blocking portion, the toggle portion is swingably pivoted on the lock in the seat and can move the driving part of the deadbolt; and An anti-theft part is telescopically pivoted in the lock seat, the latch part of the deadbolt can push the anti-theft part so that the anti-theft part retracts into the lock seat, and the stop part of the pressing plate can block the anti-theft part. Lock the locking part of the deadbolt. 2. The fireproof door lock bolt according to claim 1, further comprising at least one guide rod, and the first side and the second side of the lock base are respectively formed with an arc guide groove , each arc guide groove corresponds to each other, the driving part of the deadbolt has a through hole, the through hole corresponds to each arc guide groove, and the guide rod penetrates each arc guide groove and the through hole. 3. The fireproof door lock bolt according to claim 1, wherein the anti-theft element has a sliding bottom plate arranged between the latch portion and the bolt bottom plate and a sliding bottom plate formed on the sliding bottom plate The protruding plate at one end, the locking part can push the protruding plate of the anti-theft piece. 4. The bolt of a fireproof door lock according to claim 3, wherein the convex plate of the anti-theft component can limit the stop portion of the pressing plate. 5. The bolt of a fireproof door lock according to claim 3, wherein the stop portion of the pressure plate presses against the sliding bottom plate of the anti-theft component. 6. The lock bolt of a fireproof door lock according to claim 1, further comprising a first elastic element, the first elastic element is pivotally installed in the lock seat, and one end of the first elastic element presses against the toggle portion of the pressing plate . 7. The bolt of a fireproof door lock as claimed in claim 3, wherein the sliding bottom plate of the anti-theft element has a first end, a second end and a third end opposite to the second end, The raised plate forms a first end of the sliding bottom plate. 8. The bolt of a fireproof door lock according to claim 7, wherein said anti-theft part further has a first side plate and a second side plate, and the first side plate is formed on the sliding bottom plate. the second end, and the second side plate is formed at the third end of the sliding bottom plate. 9. The lock bolt of a fireproof door lock according to claim 8, characterized in that it further comprises a slide bar, and the first side and the second side of the lock seat are respectively formed with a chute, and each chute corresponds to each other. , the anti-theft component also has a pivot hole passing through the first side plate and the second side plate, the pivot hole corresponds to each slide slot, and the slide bar passes through each slide slot and the pivot hole. 10. The bolt of fireproof door lock according to claim 8, wherein the toggle part of the pressure plate has a first side, a second side opposite to the first side, and a protruding part on the The first flange on the first side and a second flange protruding from the second side, the first side plate of the anti-theft piece corresponds to the first flange, and the second side plate of the anti-theft piece corresponds to the second flange. 11. The fire door lock bolt according to claim 10, wherein a first lug is formed at one end of the first side plate, and a second lug is formed at one end of the second side plate, the The first lug and the second lug correspond to the first flange and the second flange respectively. 12. The bolt of a fireproof door lock as claimed in claim 11, wherein the first lug and the second lug contact the first flange and the second flange respectively.

Images