Fireproof and explosion-proof electric lock for elevator
The fireproof and explosion-proof electric lock for elevator doors addresses direct exposure issues by using a protective box body with insulation and reinforcement, ensuring door functionality during fires or impacts.
Patent Information
- Application Number
- CN202323585245.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-27
AI Technical Summary
Existing electric locks for elevator doors are often damaged by fire or impact, leading to safety hazards due to their direct exposure during installation.
A fireproof and explosion-proof electric lock for elevator doors, featuring a protective box body with a heat insulation layer, reinforcing ribs, and a buffer pad, along with a sliding protective plate and a power-driven mechanism, providing multi-layer protection against external damage.
The solution effectively prevents damage to the lock mechanism, ensuring normal operation of elevator doors even in fire or impact scenarios, thereby enhancing safety.
Smart Images
Figure CN222181463U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator locks, in particular to a fireproof and explosion-proof electric lock for an elevator. Background Art
[0002] The elevator floor door lock device is installed in the elevator floor door system to lock the elevator floor door. At the same time, the opening and closing of the floor door is realized through the cooperation of the movable door knife in the elevator door opener and the door lock. It is an important elevator safety component. Existing designers often use electric locks to open and close the elevator floor door.
[0003] At present, electric locks for elevator floor doors are often directly exposed to the outside during installation. When a fire or a foreign object hits them, they are often directly damaged, causing the elevator floor doors to be unable to open and close normally, resulting in a safety hazard. Utility Model Content
[0004] The utility model aims to provide an elevator fireproof and explosion-proof electric lock, which solves the problem that the electric locks for elevator floor doors are often directly exposed to the outside during installation, and are often directly damaged when a fire or a foreign object hits them, causing the elevator floor doors to be unable to open and close normally, thereby causing safety hazards.
[0005] To achieve the above-mentioned purpose, the utility model provides an elevator fireproof and explosion-proof electric lock, which is installed at the upper end of the elevator floor door, including a protective box body, which is divided into two groups. The two groups of protective box bodies are respectively used to protect the lock core seat and the pin hole seat of the electric lock. An operating port is provided on the close side of the two groups of protective box bodies, and a protective plate is slidably installed at the operating port. The protective plate is driven by a driving member in the protective box body to slide linearly. A cavity is provided in the inner wall of the protective box body, and the cavity is filled with a heat insulation layer. A reinforcing plate is provided on the upper cover of the protective box, and a buffer pad is installed on the upper side of the reinforcing plate.
[0006] As a further solution of the utility model, the protection plate is provided with a plurality of groups of positioning strips on one side close to the corresponding protection box body, and the plurality of groups of positioning strips are slidably connected in the positioning grooves provided at the end surface of the operating port of the protection box body.
[0007] As a further solution of the utility model, the driving assembly includes a rotating screw and a lifting nut. The rotating screw is rotatably installed in the protective box body and is driven to rotate by a power motor. The lifting nut is fixedly installed on the inner side of the protective plate and forms a spiral pair transmission with the rotating screw.
[0008] As a further solution of the utility model, the heat insulation layer is made of flame-retardant heat insulation foam, and the heat insulation layer is arranged around the circumference of the protective box body.
[0009] As a further solution of the utility model, reinforcing ribs are fixedly connected to the side of the protection box body, and multiple groups of the reinforcing ribs are distributed at equal intervals.
[0010] As a further solution of the present invention, the reinforcement plate is an explosion-proof reinforcement plate made of stainless steel, and the explosion-proof reinforcement plate is fixedly connected to the upper side of the protective box body by multiple sets of fastening bolts.
[0011] As a further solution of the utility model, the buffer pad is a buffer foam board.
[0012] Compared with the prior art, the utility model provides combined protection for the lock core seat and the pin hole seat by designing a protection box body, a protection plate, a reinforcement plate and a buffer pad, wherein a heat insulation layer is arranged inside the protection box body to prevent the external high temperature from being transmitted to the inside of the protection box body, and multiple groups of reinforcement ribs are arranged on the outside of the protection box body to improve the structural strength of the protection box body. Through the combination of the reinforcement plate and the buffer pad, the top of the protection box body is provided with multi-layer protection, thereby solving the problem that the electric locks for elevator floor doors are often directly exposed to the outside during installation, and when a fire occurs or the door is damaged by impact from foreign objects, the elevator floor door cannot be opened and closed normally, causing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model provides a structural schematic diagram of an elevator fireproof and explosion-proof electric lock.
[0014] Figure 2 A diagram showing the internal structure of a set of protective boxes provided by the utility model.
[0015] Figure 3 This is a schematic diagram of the installation of the protective plate provided by the utility model.
[0016] Figure 4 The utility model provides Figure 2 A magnified schematic diagram of center A.
[0017] In the attached figure: 1. elevator door; 2. protection box body; 3. protection plate; 301. positioning strip; 4. reinforcement plate; 5. buffer pad; 6. reinforcement rib; 7. insulation layer; 8. lock core seat; 9. rotary screw; 10. power motor; 11. transmission belt; 12. lifting nut. DETAILED DESCRIPTION
[0018] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.
[0019] like Figure 1 and Figure 2As shown, in an embodiment of the utility model, an elevator fireproof and explosion-proof electric lock is installed at the upper end of the elevator floor door 1, including a protective box body 2, which is divided into two groups. The two groups of protective box bodies 2 are respectively used to protect the lock core seat 8 and the pin hole seat of the electric lock. An operating port is provided on the near side of the two groups of protective box bodies 2, and a protective plate 3 is slidably installed at the operating port. The protective plate 3 is driven by a driving member in the protective box body 2 to slide linearly. A cavity is provided in the inner wall of the protective box body 2, and the cavity is filled with a heat insulation layer 7. A reinforcing plate 4 is provided on the upper cover of the protective box, and a buffer pad 5 is installed on the upper side of the reinforcing plate 4.
[0020] like Figure 3 As shown, in an embodiment of the utility model, the protective plate 3 is provided with multiple groups of positioning strips 301 on one side close to the corresponding protective box body 2, and the multiple groups of positioning strips 301 are slidably connected in the positioning grooves provided at the end face of the operating port of the protective box body 2. The protective plate 3 in the utility model is driven by the driving assembly to slide in the vertical direction, and the positioning strips 301 are slidably cooperated with the positioning grooves to improve the stability of the protective plate 3 when sliding.
[0021] like Figure 2 and Figure 4 As shown, in the embodiment of the utility model, the driving assembly includes a rotary screw 9 and a lifting nut 12, the rotary screw 9 is rotatably installed in the protective box body 2, and is driven to rotate by the power motor 10, and the lifting nut 12 is fixedly installed on the inner side of the protective plate 3, and forms a spiral pair transmission with the rotary screw 9;
[0022] The output shaft of the power motor 10 in the utility model is connected to one end of the rotating screw 9 through a transmission belt 11. The power motor 10 rotates, and the rotating screw 9 is driven to rotate by the transmission belt 11, and the lifting nut 12 and the protective plate 3 are lifted and lowered. Of course, in actual design, the driving component can also be replaced by other components with linear transmission capabilities, and a gear rack transmission structure or a driving cylinder telescopic structure, etc. can be selected.
[0023] like Figure 2 As shown, in the embodiment of the utility model, the thermal insulation layer 7 is made of flame-retardant thermal insulation foam, and the thermal insulation layer 7 is arranged around the circumference of the protection box body 2. By arranging the thermal insulation layer 7, the external high temperature is prevented from being transmitted to the inside of the protection box body 2, and the damage of the high-temperature lock core seat 8 and the pin hole seat is prevented, thereby improving the fire resistance of the protection box body 2.
[0024] like Figure 1 As shown, in the embodiment of the utility model, the side of the protection box body 2 is fixedly connected with a reinforcing rib 6, and multiple groups of the reinforcing ribs 6 are distributed at equal intervals. By providing multiple groups of reinforcing ribs 6, the structural strength of the protection box body 2 is improved to prevent the protection box body 2 from being deformed when it is hit.
[0025] like Figure 1 As shown, in the embodiment of the utility model, the reinforcement plate 4 is an explosion-proof reinforcement plate 4, which is made of stainless steel. The explosion-proof reinforcement plate 4 is fixedly connected to the upper side of the protection box body 2 by multiple sets of fastening bolts. By setting the explosion-proof reinforcement plate 4, the strength of the stainless steel material is high, and the explosion-proof reinforcement plate 4 is used to protect the top of the protection box body 2, so that the top of the protection box body 2 is stable when it is deformed by the impact of foreign objects.
[0026] like Figure 1 As shown, in the embodiment of the utility model, the buffer pad 5 is a buffer foam board, and the specific buffer foam board is made of a flame retardant and heat-insulating foam board. By using a flame retardant and heat-insulating foam board to make the buffer foam board, while realizing the buffer function, it can also play a role of flame retardancy and heat insulation, thereby avoiding the spontaneous combustion of the buffer foam board itself.
[0027] In summary, the utility model provides combined protection for the lock core seat 8 and the pin hole seat by designing a protection box body 2, a protection plate 3, a reinforcement plate 4 and a buffer pad 5, wherein a heat insulation layer 7 is arranged inside the protection box body 2 to prevent the high temperature from the outside from being transmitted to the inside of the protection box body 2, and multiple groups of reinforcement ribs 6 are arranged on the outside of the protection box body 2 to improve the structural strength of the protection box body 2. Through the combination of the reinforcement plate 4 and the buffer pad 5, the top of the protection box body 2 is provided with multi-layer protection, thereby solving the problem that the electric lock for the elevator floor door 1 is often directly exposed to the outside during installation, and when a fire occurs or it is damaged by impact from foreign objects, the elevator floor door 1 cannot be opened and closed normally, causing a safety hazard.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0029] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.
Claims
1. An elevator fireproof and explosion-proof electric lock, which is installed at the upper end of the elevator door, characterized in that: It includes two groups of protective box bodies, which are respectively used to protect the lock core seat and the pin hole seat of the electric lock. The close sides of the two groups of protective box bodies are provided with operation ports, and a protective plate is slidably installed at the operation port. The protective plate is driven by a driving assembly in the protective box body to slide linearly. A cavity is provided in the inner wall of the protective box body, and the cavity is filled with a heat insulation layer. A reinforcing plate is provided on the upper cover of the protective box, and a buffer pad is installed on the upper side of the reinforcing plate.
2. The fireproof and explosion-proof electric lock for elevators according to claim 1, characterized in that: A plurality of groups of positioning strips are arranged on one side of the protection plate close to the corresponding protection box body, and the plurality of groups of positioning strips are slidably connected in positioning grooves provided at the end surface of the operating port of the protection box body.
3. The fireproof and explosion-proof electric lock for elevators according to claim 1, characterized in that: The driving assembly includes a rotating screw and a lifting nut. The rotating screw is rotatably installed in the protective box body and driven to rotate by a power motor. The lifting nut is fixedly installed on the inner side of the protective plate and forms a spiral pair transmission with the rotating screw.
4. The fireproof and explosion-proof electric lock for elevators according to claim 1, characterized in that: The heat insulation layer is made of flame-retardant heat insulation foam and is arranged around the periphery of the protection box body.
5. The fireproof and explosion-proof electric lock for elevators according to claim 1, characterized in that: The side surface of the protection box body is fixedly connected with reinforcing ribs, and multiple groups of the reinforcing ribs are distributed at equal intervals.
6. The fireproof and explosion-proof electric lock for elevators according to claim 1, characterized in that: The reinforcement plate is an explosion-proof reinforcement plate made of stainless steel. The explosion-proof reinforcement plate is fixedly connected to the upper side of the protection box body by multiple sets of fastening bolts.
7. The fireproof and explosion-proof electric lock for elevators according to claim 1, characterized in that: The buffer pad is a buffer foam board.