Push rod fire-fighting lock

Abstract

The utility model relates to a push rod fire-fighting lock which is provided with a supporting seat used for being installed on a door, and a plurality of inserting rods are installed on the supporting seat and extend out of the supporting seat in different directions. The rotating disc is arranged on the supporting base and used for being connected with the multiple inserting rods, and the multiple inserting rods are synchronously driven to do telescopic motion through rotation of the rotating disc. The push rod is assembled on the supporting seat, can move relative to the supporting seat and is connected with the turntable through the transmission system, so that the push rod is operated to drive the turntable to rotate. According to the utility model, the plurality of inserting rods extend towards different directions to obtain a multi-point inserting and buckling effect and increase a firm locking effect, the plurality of inserting rods are synchronously driven by the turntable, and the turntable is connected with the push rod through the transmission system, so that the push rod is operated to drive the turntable to rotate, and the plurality of inserting rods do telescopic motion for unlocking and inserting and buckling; the safety escape door can be opened easily and quickly, so that the fastest evacuation can be realized, and internal personnel can escape safely under emergency conditions such as fire disasters and the like. The structure is simple, convenience and practicability are achieved, and good social benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a fire-fighting lock. Background Art

[0002] Fire locks are primarily used on emergency exit doors in high-traffic public places like subways, large supermarkets, shopping malls, office buildings, hospitals, schools, and factories. They prevent unauthorized entry while ensuring safe escape in emergencies like fires. Therefore, fire locks must provide a secure locking mechanism while also being lightweight and quick to open for prompt evacuation. Consequently, convenient and practical fire lock designs have become a focus of industry attention. Summary of the Invention

[0003] The purpose of the utility model is to provide a wire fixing structure for earplugs, which simplifies assembly and reduces production costs.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Push rod fire lock, which has:

[0006] A support base, used for installation on the door;

[0007] A plurality of rods are mounted on the support base and extend from the support base in different directions;

[0008] The turntable is provided on the support base and is used to connect multiple rods. The rotation of the turntable synchronously drives the multiple rods to perform telescopic movement.

[0009] The push rod is assembled on the support base and can move relative to the support base. The push rod is connected to the turntable through a transmission system so that the push rod can be operated to drive the turntable to rotate.

[0010] The above solution is further that the transmission system includes a first bevel gear and a second bevel gear that are meshed with each other, the first bevel gear is coaxially connected to the turntable, and the second bevel gear is installed on the rotating shaft, which is installed on the support seat through a bearing and fixedly connected to the push rod.

[0011] The above solution is further provided with an external tooth portion on the outer periphery of the turntable, and a rack portion is provided at the corresponding end of the insertion rod, and the rack portion is meshed and connected with the external tooth portion.

[0012] The above solution is further provided with three insertion rods which extend upward, downward, leftward or rightward from the support seat on the same plane, and elastic locking tongues which can adapt to and retract themselves are provided at the extended ends of the insertion rods.

[0013] The above scheme is further that the support seat includes a bottom plate, a surface cover and an upper cover, the bottom plate and the surface cover are combined to form a hollow structure, the turntable is placed between the bottom plate and the surface cover, and the turntable and the first bevel gear are installed on the same connecting shaft, the first bevel gear protrudes to the outside of the surface cover and engages with the second bevel gear, the upper cover is fixed on the surface cover and covers the first bevel gear and the second bevel gear, and one end of the rotating shaft extends from the upper cover and is connected to the push rod.

[0014] The above solution is further provided with a torsion spring on the rotating shaft, which provides elastic force for the push rod to self-adaptively reset.

[0015] The above solution is further provided with guide openings on the surface cover, and the number and positions of the guide openings match the insertion rods so that the insertion rods extend from the corresponding guide openings.

[0016] The above solution is further that the insertion rod is also provided with a long guide groove, the length direction of the guide groove is consistent with the length direction of the rack part; the guide groove cooperates with the preset positioning pin on the support seat to guide the movement of the insertion rod and the rack part.

[0017] This push-rod fire lock features multiple rods extending in different directions, achieving multi-point locking and a secure locking effect. The rods are synchronously driven by a rotating disk, which is connected to the push rods via a transmission system. The push rods are operated to rotate the disk, allowing the rods to move telescopically for unlocking and locking. The lock can be opened easily and quickly, allowing for the fastest possible evacuation, ensuring safe escape in emergencies such as fires. The lock features a simple structure, convenient practicality, and excellent social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attachment Figure 1 This is a schematic structural diagram of a preferred embodiment of the utility model;

[0019] Attachment Figure 2 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0020] Attachment Figure 3 for Figure 1 An exploded and enlarged schematic diagram of a local structure of an embodiment;

[0021] Attachment Figure 4 for Figure 1 An enlarged schematic diagram of the internal assembly structure of the embodiment. DETAILED DESCRIPTION

[0022] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0023] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] See Figure 1 、 2 , 3, and 4 are schematic diagrams of preferred embodiments of the present invention. The present invention relates to a push rod fire lock, which comprises: a support base 1, a plurality of plug rods 2, a turntable 3, and a push rod 4. The support base 1 is used to be installed on the door and provides an installation space, such as Figure 1 、 2 As shown in Figures 3 and 4, the support base 1 includes a base plate 11, a surface cover 12 and an upper cover 13. The base plate 11 and the surface cover 12 are fastened together by screws to form a hollow structure. The upper cover 13 is further fixed to the outer surface of the surface cover 12 by screws. The multi-layer structure is convenient for production and assembly. Multiple rods 2 are installed on the support base 1 and each extends from the support base 1 in different directions, thereby obtaining a multi-point buckle effect. In this embodiment, at least up and down and left or right buckles are realized to increase the locking function. The turntable 3 is provided on the support base 1, and is used to connect multiple rods 2. The rotation of the turntable 3 synchronously drives the multiple rods 2 to perform telescopic movements; Figure 3 、 4 As shown, the turntable 3 is placed between the base plate 11 and the cover 12. The corresponding ends of the multiple insertion rods 2 are also assembled between the base plate 11 and the cover 12 and connected to the turntable 3, so that the turntable 3 can synchronously drive the multiple insertion rods 2 to perform telescopic movement. The push rod 4 is assembled on the support base 1 and can move relative to the support base 1. The push rod 4 is connected to the turntable 3 through a transmission system, so that the push rod can be operated to drive the turntable 3 to rotate. This structure is transmitted through the transmission system, and the turntable 3 is rotated by pulling the push rod 4, which drives the multiple insertion rods 2 to perform telescopic movement to achieve the unlocking or locking effect. The power transmission is smooth and the operating force is small, which is suitable for use by a wider range of people. It can be opened lightly and quickly to enable the fastest evacuation and allow the safe escape of occupants in emergency situations such as fire.

[0025] Figure 2 、 3As shown, in this embodiment, the transmission system includes a first bevel gear 51 and a second bevel gear 52 that mesh with each other. The first bevel gear 51 is coaxially connected to the turntable 3, while the second bevel gear 52 is mounted on a rotating shaft 53. The rotating shaft 53 is mounted on the support base 1 via a bearing and fixedly connected to the push rod 4. This compact structure allows for smooth and lightweight power transmission. In this embodiment, the turntable 3 and the first bevel gear 51 are mounted on the same connecting shaft. The first bevel gear 51 protrudes beyond the outer side of the cover 12 and meshes with the second bevel gear 52. The upper cover 13 covers the first and second bevel gears 51 and 52 for increased protection. One end of the rotating shaft 53 extends from the upper cover 13 and connects to the push rod 4. The rotating shaft 53 is connected to the upper cover 13 via corresponding bearings, facilitating rotation. In this embodiment, the push rod 4 is provided with support legs 41 at both ends. One support leg 41 is fixedly connected to the rotating shaft 53, while the other support leg 41 is connected to the door body or the like via a hinged structure, providing rotational support and improving operability.

[0026] Figure 2 、 3 As shown, this embodiment further comprises an outer toothed portion 31 on the outer periphery of the turntable 3, and a rack portion 21 on the corresponding end of the insertion rod 2. The rack portion 21 meshes with the outer toothed portion 31, enhancing transmission stability and ensuring stable and effective movement of the insertion rod 2 by the turntable 3. The insertion rods 2 are provided in three positions and extend upward, downward, leftward, or rightward from the support base 1 on the same plane. An adaptively retractable elastic locking tongue 22 is provided at the extended end of the insertion rod 2. The elastic locking tongue 22 is designed so that when the door is impacted while closing, it automatically retracts and ejects, allowing it to be inserted into the corresponding lock slot, achieving a latch lock.

[0027] In this embodiment, the cover 12 is provided with guide openings 121. The number and position of these openings 121 match the insertion rod 2, allowing the rod 2 to extend through the corresponding openings 121. The guide openings 121 are partially cutaway structures in the cover 12, creating passageways that facilitate the extension of the insertion rod 2 and provide a guiding and restraining effect. The insertion rod 2 is also provided with an elongated guide slot 23, the length of which aligns with the length of the rack portion 21. The guide slot 23 cooperates with the positioning pins 14 provided on the support base 1 to guide the movement of the insertion rod 2 and the rack portion 21, enhancing the smoothness and effectiveness of the movement of the insertion rod 2.

[0028] In this embodiment, a torsion spring 54 is provided on the rotating shaft 53 to provide elastic force for the push rod 4 to self-adaptively reset, thereby increasing usability. The torsion spring 54 is correspondingly sleeved on the rotating shaft 53 to facilitate manufacturing and installation.

[0029] This push-rod fire lock features multiple rods extending in different directions, achieving multi-point locking and a secure locking effect. The rods are synchronously driven by a rotating disk, which is connected to the push rods via a transmission system. The push rods are operated to rotate the disk, allowing the rods to move telescopically for unlocking and locking. The lock can be opened easily and quickly, allowing for the fastest possible evacuation, ensuring safe escape in emergencies such as fires. The lock features a simple structure, convenient practicality, and excellent social benefits.

[0030] Although the preferred specific embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention should not be limited to the structure and operation exactly the same as the above description and drawings. For those skilled in the art, many equivalent improvements and changes can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and changes should all fall within the scope of protection claimed by the present invention.

Claims

1. Push rod fire lock, characterized in that: have: A support base (1) for mounting on a door; A plurality of insertion rods (2) are mounted on the support base (1) and extend from the support base (1) in different directions; A turntable (3) is arranged on the support seat (1) and is used to connect the plurality of plug rods (2). The rotation of the turntable (3) synchronously drives the plurality of plug rods (2) to perform telescopic movement; A push rod (4) is assembled on the support base (1) and can move relative to the support base (1). The push rod (4) is connected to the turntable (3) through a transmission system so that the push rod can be operated to drive the turntable (3) to rotate.

2. The push rod fire lock according to claim 1, characterized in that: The transmission system comprises a first bevel tooth (51) and a second bevel tooth (52) meshing with each other, the first bevel tooth (51) being coaxially connected to the rotating disk (3), and the second bevel tooth (52) being mounted on a rotating shaft (53), and the rotating shaft (53) being mounted on a support seat (1) via a bearing and fixedly connected to a push rod (4).

3. The push rod fire lock according to claim 1 or 2, characterized in that: An outer tooth portion (31) is provided on the outer periphery of the rotating disk (3), and a rack portion (21) is provided on the corresponding end of the insert rod (2), and the rack portion (21) is meshingly connected with the outer tooth portion (31).

4. The push rod fire lock according to claim 1, characterized in that: The insertion rods (2) are three in number and extend upward, downward, leftward or rightward from the support seat (1) on the same plane. A self-adaptively retractable elastic locking tongue (22) is provided at the extended end of the insertion rods (2).

5. The push rod fire lock according to claim 2, characterized in that: The support seat (1) comprises a bottom plate (11), a surface cover (12) and an upper cover (13); the bottom plate (11) and the surface cover (12) are combined to form a hollow structure; the turntable (3) is arranged between the bottom plate (11) and the surface cover (12); the turntable (3) and the first bevel gear (51) are mounted on the same connecting shaft; the first bevel gear (51) protrudes to the outside of the surface cover (12) and meshes with the second bevel gear (52); the upper cover (13) is fixed on the surface cover (12) and covers the first bevel gear (51) and the second bevel gear (52); one end of the rotating shaft (53) protrudes from the upper cover (13) and is connected to the push rod (4).

6. The push rod fire lock according to claim 5, characterized in that: The rotating shaft (53) is provided with a torsion spring (54), and the torsion spring (54) provides elastic force for the push rod (4) to self-adaptively reset.

7. The push rod fire lock according to claim 5, characterized in that: The surface cover (12) is provided with guide openings (121), and the number and positions of the guide openings (121) match the insertion rods (2), so that the insertion rods (2) can extend from the corresponding guide openings (121).

8. The push rod fire lock according to claim 3, characterized in that: The insertion rod (2) is also provided with a long guide groove (23), the length direction of the guide groove (23) being consistent with the length direction of the rack portion (21); the guide groove (23) cooperates with a positioning pin (14) preset on the support seat (1) to guide the movement of the insertion rod (2) and the rack portion (21).

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