Sparkproof and waterproof elevator door lock device for safety protection

Abstract

The utility model relates to the technical field of elevator safety, in particular to a spark-proof and waterproof elevator door lock device for safety protection. A door lock electrical switch is installed on a door lock device support, the lower end of the support extends forwards to form an L-shaped connecting part, a lower door lock hook is integrally formed at the end of the L-shaped connecting part, an upper door lock hook is integrally formed at the position, corresponding to the lower door lock hook, of the front end of a lock hook plate, and a pressing rod support is fixedly connected to the upper end of the lock hook plate. A switch pressing rod is fixedly connected to the upper end of the pressing rod support, an upper door pulley and a lower door pulley are installed on the side, away from the upper door lock hook, of the lock hook plate, a gap is reserved between the vertical face of the lock hook plate and the vertical face of the upper hook support, and the lock hook plate is fixedly connected with the upper hook support through screws. Special materials and structural design are adopted, so that the door lock can still keep integrity and functionality in emergency situations such as fire disasters or flood disasters, and safety and reliability of an elevator in the emergency situations are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator safety, in particular to an elevator door lock device for spark-proof and waterproof safety protection. Background Art

[0002] With the rapid development of modern construction technology and the acceleration of urbanization, elevators, as a vital means of vertical transportation, have been widely used in various buildings. However, during elevator operation, especially in emergency situations such as fire or flooding, the safety and reliability of elevator door locks have become crucial considerations. Traditional elevator door locks often fail due to a lack of effective protective measures when exposed to sparks from fire or flooding. This not only affects the normal operation of the elevator but also poses a serious threat to the lives of passengers.

[0003] In the event of a fire, if the elevator door lock device cannot effectively resist the invasion of sparks, it is very likely to cause the door lock to fail, preventing the elevator door from closing tightly. The fire and toxic gases may quickly spread to the elevator shaft, posing a serious threat to passengers. Furthermore, the high temperature generated by the fire may also deform the door lock material, further affecting the locking effect of the door lock. Flooding is also a major challenge for elevator door lock devices. In humid environments, moisture can penetrate the door lock, causing problems such as electrical shorts and rust on mechanical components, thereby affecting the normal operation of the door lock. Elevators in basements or low-lying areas are particularly susceptible to flooding. Therefore, designing elevator door lock devices with waterproof functions is also crucial to ensure stable operation of elevators in humid environments.

[0004] To address these issues, while some fireproof and waterproof door locks have emerged on the market, specialized designs for elevator door locks remain relatively scarce. While some products incorporate reinforced layers like fire and waterproof layers, in practice, due to the unique characteristics and complexity of elevator door locks, these products often fail to fully meet the safety and reliability requirements. Therefore, developing a safety-protective elevator door lock device with integrated spark and waterproof features, tailored to the actual application needs of elevator door locks, is crucial for improving elevator safety and reliability in emergency situations and protecting passengers. Utility Model Content

[0005] Based on the problems existing in the above-mentioned background technology, the utility model provides a safety protection elevator door lock device for preventing spark and water, which includes a bracket, a lock hook plate and an upper hook bracket. A door lock electrical switch is installed on the bracket. The lower end of the bracket extends forward with an L-shaped connecting part, and a lower door lock hook is integrally formed at the end of the L-shaped connecting part. An upper door lock hook is integrally formed at the front end of the lock hook plate corresponding to the lower door lock hook. A pressure rod bracket is fixedly connected to the upper end of the lock hook plate, and a switch pressure rod is fixedly connected to the upper end of the pressure rod bracket. Upper door pulleys and lower door pulleys are respectively installed on one side of the lock hook plate away from the upper door lock hook. A gap is left between the vertical surface of the lock hook plate and the vertical surface of the upper hook bracket, and the lock hook plate and the upper hook bracket are fixedly connected by screws.

[0006] Preferably, the upper end of the bracket is bent backward at 90 degrees and extends upward with a fixed end, and slot holes are symmetrically opened on the fixed end.

[0007] Preferably, the lower door lock hook is fixedly connected to the bracket by screws, and the door lock electrical switch is fixedly connected to the bracket by screws.

[0008] Preferably, the left end of the switch pressure rod is rectangular, a rectangular through hole is opened in the rectangular end of the switch pressure rod, the right end of the switch pressure rod is formed into a triangle, a first connecting part extends forward at 90 degrees at the lower part of the right part of the switch pressure rod, and a connecting hole is opened on the first connecting part.

[0009] Preferably, connecting parts extend forward at both the upper and lower ends of the pressure rod bracket, connecting holes are opened at the connecting parts at both the upper and lower ends of the pressure rod bracket, and the pressure rod bracket and the switch pressure rod are fixedly connected by screws.

[0010] Preferably, a fixing part extends forward at 90 degrees at the upper end of the lock hook plate, a connecting hole is opened on the fixing part, the upper part of the lock hook plate and the pressure rod bracket are fixedly connected by screws, the left end of the lock hook plate is integrally formed with an upper door lock hook, a screw connecting hole is opened on the lock hook plate, and the lock hook plate and the upper hook bracket are fixedly connected by screws.

[0011] Preferably, a plurality of oval through holes and round holes are opened on the upper hook bracket, and the longitudinal cross-section of the upper hook bracket is in a U shape.

[0012] Preferably, the door lock electrical switch has an IP65 protection level to achieve the effect of dust and water protection; the material of the lower door lock hook is made of anti-spark material.

[0013] Preferably, the material of the lower door lock hook is copper. The lower door lock hook is made of anti-spark materials such as copper, and will not generate sparks due to impact during operation, causing the surrounding flammable and explosive gases or dust to ignite and explode.

[0014] Compared to existing technologies, this utility model offers the following advantages: The design and development of a safety-protective elevator door lock device with integrated spark and water protection features is of great significance for improving elevator safety and reliability in emergency situations and protecting passengers. The device utilizes specialized materials and structural design to ensure that the door lock maintains integrity and functionality in emergencies such as fire and flooding, providing passengers with valuable escape time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The diagram is a structural diagram of an elevator door lock device for spark and waterproof safety protection.

[0016] In the accompanying drawings, the names of the components represented by each reference numeral are as follows: 1. Door lock electrical switch; 2. Bracket; 3. Lower door lock hook; 4. Upper door lock hook; 5. Lower door pulley; 6. Upper hook bracket; 7. Upper door pulley; 8. Pressure rod bracket; 9. Switch pressure rod; 10. Lock hook plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, inside, outside, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0019] A safety protection elevator door lock device for preventing spark and water, including a bracket 2, a lock hook plate and an upper hook bracket 6. A door lock electrical switch 1 is installed on the bracket 2. The lower end of the bracket 2 extends forward with an L-shaped connecting part, and a lower door lock hook 3 is integrally formed at the end of the L-shaped connecting part. An upper door lock hook 4 is integrally formed at the corresponding position of the front end of the lock hook plate and the lower door lock hook 3. A pressure rod bracket 8 is fixedly connected to the upper end of the lock hook plate, and a switch pressure rod 9 is fixedly connected to the upper end of the pressure rod bracket 8. An upper door pulley 7 and a lower door pulley 5 are respectively installed on the side of the lock hook plate away from the upper door lock hook 4. There is a gap between the vertical surface of the lock hook plate and the vertical surface of the upper hook bracket 6, and the lock hook plate and the upper hook bracket 6 are fixedly connected by screws.

[0020] Further, the upper end of the bracket 2 is bent 90 degrees backward and extends upward to form a fixed end, and slot holes are symmetrically opened on the fixed end.

[0021] Further, the lower door lock hook 3 is fixedly connected to the bracket 2 by screws, and the door lock electrical switch 1 is fixedly connected to the bracket 2 by screws.

[0022] Further, the left end of the switch pressure rod 9 is rectangular, a rectangular through hole is opened in the rectangular end of the switch pressure rod 9, the right end of the switch pressure rod 9 is formed into a triangle, and a first connecting part is formed by extending 90 degrees forward at the lower end of the right part of the switch pressure rod 9, and a connecting hole is opened on the first connecting part.

[0023] Further, the upper and lower ends of the pressure rod bracket 8 extend forward to form connecting parts, connecting holes are opened at the upper and lower connecting parts of the pressure rod bracket 8, and the pressure rod bracket 8 and the switch pressure rod 9 are fixedly connected by screws.

[0024] Further, the upper end of the lock hook plate extends 90 degrees forward to form a fixed part, a connecting hole is opened on the fixed part, the upper part of the lock hook plate and the pressure rod bracket 8 are fixedly connected by screws, the left end of the lock hook plate is integrally formed with an upper door lock hook 4, screw connection holes are opened on the lock hook plate, and the lock hook plate and the upper hook bracket 6 are fixedly connected by screws.

[0025] Further, a number of oval through holes and round holes are opened on the upper hook bracket 6, and the longitudinal cross section of the upper hook bracket 6 is in a U shape.

[0026] Further, the door lock electrical switch 1 has an IP65 protection level, and the material of the lower door lock hook 3 is made of anti-spark material.

[0027] Further, the material of the lower door lock hook 3 is copper.

[0028] The working process of the present utility model is as follows: <​When the elevator door closes, the upper door lock hook 4 automatically drops down and engages with the lower door lock hook 3, achieving self-locking. As the upper door lock hook 4 drops down, the switch pressure rod 9 presses on the door lock electrical switch 1, activating the elevator safety circuit and enabling normal operation. When the elevator door opens, the elevator's door blade pushes the upper door pulley 7, lifting the upper door lock hook 4. Simultaneously, the switch pressure rod 9 lifts up, disconnecting the door lock electrical switch 1 and the elevator safety circuit, preventing the elevator from operating when the door is open.

[0030] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications shall also be considered within the scope of protection of the present invention.

Claims

1. An elevator door lock device for spark and water proof safety protection, characterized by: It includes a bracket, a lock hook plate and an upper hook bracket. A door lock electric switch is installed on the bracket. The lower end of the bracket extends forward with an L-shaped connecting part. A lower door lock hook is integrally formed at the end of the L-shaped connecting part. An upper door lock hook is integrally formed at the front end of the lock hook plate corresponding to the lower door lock hook. A pressure rod bracket is fixedly connected to the upper end of the lock hook plate. A switch pressure rod is fixedly connected to the upper end of the pressure rod bracket. An upper door pulley and a lower door pulley are respectively installed on the side of the lock hook plate away from the upper door lock hook. There is a gap between the vertical plane of the lock hook plate and the vertical plane of the upper hook bracket. The lock hook plate and the upper hook bracket are fixedly connected by screws.

2. The spark-proof and waterproof elevator door lock device according to claim 1, characterized in that: The upper end of the bracket is bent 90 degrees backward and extends upward with a fixed end, and slot holes are symmetrically opened in the fixed end.

3. The spark-proof and waterproof elevator door lock device according to claim 1, characterized in that: The lower door lock hook is fixedly connected to the bracket by screws, and the door lock electric switch is fixedly connected to the bracket by screws.

4. The spark-proof and waterproof elevator door lock device according to claim 1, characterized in that: The left end of the switch pressure rod is rectangular, a rectangular through hole is opened in the rectangular end of the switch pressure rod, the right end of the switch pressure rod is formed into a triangle, a first connecting part is formed by extending 90 degrees forward at the lower part of the right end of the switch pressure rod, and a connecting hole is opened in the first connecting part.

5. The spark-proof and waterproof elevator door lock device according to claim 4, characterized in that: The upper and lower ends of the pressure rod bracket extend forward to form connecting parts, connecting holes are opened in the connecting parts at the upper and lower ends of the pressure rod bracket, and the pressure rod bracket and the switch pressure rod are fixedly connected by screws.

6. The spark-proof and waterproof elevator door lock device according to claim 5, characterized in that: The upper end of the lock hook plate extends 90 degrees forward with a fixed part, a connecting hole is opened in the fixed part, the upper part of the lock hook plate and the pressure rod bracket are fixedly connected by screws, the left end of the lock hook plate is integrally formed with an upper door lock hook, a screw connecting hole is opened in the lock hook plate, and the lock hook plate and the upper hook bracket are fixedly connected by screws.

7. The spark-proof and waterproof elevator door lock device according to claim 1, characterized in that: A number of oval through holes and round holes are opened in the upper hook bracket, and the longitudinal cross-section of the upper hook bracket is in a U shape.

8. The spark-proof and waterproof elevator door lock device according to claim 1, characterized in that: The door lock electric switch has an IP65 protection level, and the material of the lower door lock hook is made of anti-sparking material.

9. The spark-proof and waterproof elevator door lock device according to claim 8, characterized in that: The material of the lower door lock hook is copper.

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