An interlocking alarm device for protective doors of multi-layer lifting platforms in Class A workshops

Abstract

The utility model discloses an interlock alarm device for protective doors of multi-layer lifting platforms in Class A workshops, including a lifting platform, multiple protective gates and an interlock control component. The lifting platform is arranged in a shaft, and protective gates are arranged on door openings of each layer of the shaft. The protective gates are provided with an alarm light group. The interlock control component is electrically connected to the control end of the lifting platform. The interlock control component is used to detect the opening and closing of the protective gates. When one of the protective gates is sensed to be opened, the interlock control component is also used to control the lifting platform to stop running and light up the alarm light group on the protective gate. By setting the lifting platform, the protective gates and the interlock control component, the requirements of explosion-proof specifications can be met, ensuring safe and stable operation in high-risk environments such as Class A workshops, thereby replacing the use of traditional explosion-proof elevators, thereby greatly reducing construction costs and daily maintenance costs.

Description

Technical Field

[0001] The utility model relates to the technical field of protective doors, in particular to an interlocking alarm device for protective doors of multi-layer lifting platforms in Class A workshops. Background Art

[0002] Class A workshops refer to chemical production workshops with a higher risk level, mainly producing flammable and explosive, toxic and harmful, highly corrosive, and high-pressure dangerous chemical products. These workshops usually use organic solvents that are easy to release flammable gases, involve high-temperature and high-pressure equipment and high-risk operating processes, and have complex operating environments and great safety risks. Due to the high risk of Class A workshops, explosion-proof elevators with better explosion-proof performance are widely used and important in Class A workshops.

[0003] However, the construction cost of explosion-proof elevators is relatively high, and the maintenance threshold of explosion-proof elevators is more stringent than that of ordinary elevators, which also increases their maintenance costs. Utility Model Content

[0004] The utility model aims to provide an interlocking alarm device for protective doors of multi-layer lifting platforms in Class A workshops.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A multi-layer lifting platform protective door interlock alarm device for Class A workshops, comprising a lifting platform, multiple protective gates and an interlock control component, the lifting platform is arranged in a shaft, the protective gates are arranged on the door openings of each layer of the shaft, an alarm light group is provided on the protective gates, the interlock control component is electrically connected to the control end of the lifting platform, the interlock control component is used to detect the opening and closing of the protective gates, and when it is sensed that one of the protective gates is opened, the interlock control component is also used to control the lifting platform to stop running and light up the alarm light group on the protective gate.

[0007] Preferably, the interlocking control component includes a controller and a plurality of explosion-proof contacts, wherein the plurality of explosion-proof contacts are respectively arranged above the protective gate, the explosion-proof contacts are electrically connected to the input end of the controller, and the explosion-proof contacts are used to detect the opening and closing of the protective gate, and the output end of the controller is electrically connected to the alarm light group and the control end of the lifting platform.

[0008] Preferably, the protective gate comprises a first door leaf and a second door leaf, the first door leaf and the second door leaf are respectively hinged to the left and right sides of the door opening through door hinges, and the explosion-proof contacts are provided above the first door leaf and the second door leaf.

[0009] Preferably, the alarm light group includes an audible and visual alarm light and a plurality of floor prompt lights. When one of the protective gates is opened, the controller lights up the audible and visual alarm light on the protective gate and the floor prompt lights indicating the corresponding floors on each of the protective gates.

[0010] Preferably, a lock plate is provided on the first door leaf, and a lock buckle is provided on the second door leaf, and the lock plate is used to engage with the lock buckle to lock the first door leaf and the second door leaf.

[0011] Preferably, both the first door leaf and the second door leaf are explosion-proof door leaves.

[0012] The beneficial effects of the utility model are as follows: by providing a lifting platform, a protective gate and an interlocking control component, the requirements of explosion-proof specifications can be met, ensuring safe and stable operation in high-risk environments such as Class A workshops, thereby replacing traditional explosion-proof elevators and greatly reducing construction costs and daily maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0014] Figure 1 It is a schematic diagram of the principle of an interlocking control assembly of one embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a protective gate in one embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the hoistway layout of one embodiment of the utility model.

[0017] Among them: lifting platform 2, protective gate 3, hoistway 1, door opening 11, explosion-proof contact 41, first door leaf 31, second door leaf 32, sound and light alarm light 51, floor prompt light 52, lock plate 61, lock buckle 62. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0019] This embodiment is a protective door interlock alarm device for a multi-layer lifting platform 2 in a Class A workshop, see the attached Figures 1 to 3, including a lifting platform 2, multiple protective gates 3 and an interlocking control component. The lifting platform 2 is arranged in the shaft 1, and the protective gates 3 are arranged on the door openings 11 of each layer of the shaft 1. The protective gates 3 are provided with an alarm light group. The interlocking control component is electrically connected to the control end of the lifting platform 2. The interlocking control component is used to detect the opening and closing of the protective gates 3. When it is sensed that one of the protective gates 3 is opened, the interlocking control component is also used to control the lifting platform 2 to stop running and light up the alarm light group on the protective gate 3.

[0020] By setting multiple protective gates 3 and interlock control components, when one of the protective gates 3 is opened, the lifting platform 2 will stop running immediately, and light up the alarm light group on the protective gate 3 for warning, which not only ensures that the device of this embodiment meets the requirements of explosion-proof regulations, but also effectively prevents safety accidents caused by accidental opening of the gate, greatly improving the safety of the multi-layer lifting platform 2 of the Class A workshop. Compared with traditional explosion-proof elevators, the cost and maintenance cost are lower.

[0021] Preferably, the interlocking control component includes a controller and multiple explosion-proof contacts 41, and the multiple explosion-proof contacts 41 are respectively arranged above the protective gate 3. The explosion-proof contacts 41 are electrically connected to the input end of the controller. The explosion-proof contacts 41 are used to detect the opening and closing of the protective gate 3, and the output end of the controller is electrically connected to the alarm light group and the control end of the lifting platform 2.

[0022] By setting a plurality of explosion-proof contacts 41 above the protective gate 3, it is used to detect the opening and closing status of each protective gate 3. Once the explosion-proof contact 41 detects that the protective gate 3 is opened, the controller will immediately receive a signal, control the lifting platform 2 to stop running, realize the interlocking of the explosion-proof contact 41 and the lifting platform 2, and light up the alarm light group for warning, effectively preventing accidents. The use of the explosion-proof contact 41 and the controller meets the requirements of the explosion-proof specification, and the maintenance cost is lower.

[0023] Preferably, the protective gate 3 includes a first door leaf 31 and a second door leaf 32, and the first door leaf 31 and the second door leaf 32 are respectively hinged to the left and right sides of the door opening 11 through door hinges, and explosion-proof contacts 41 are provided above the first door leaf 31 and the second door leaf 32. The protective gate 3 is a double-door structure including the first door leaf 31 and the second door leaf 32. The double-door design provides a larger opening area, making it more convenient for materials to enter and exit. At the same time, explosion-proof contacts 41 are provided on the first door leaf 31 and the second door leaf 32 to ensure that when the first door leaf 31 or the second door leaf 32 is opened, it can be detected by the explosion-proof contact 41 and the corresponding interlocking control action is immediately triggered.

[0024] Preferably, the alarm light group includes an audible and visual alarm light 51 and a plurality of floor prompt lights 52. When one of the protective gates 3 is opened, the controller lights up the audible and visual alarm light 51 on the protective gate 3 and the floor prompt lights 52 on each protective gate 3 indicating the corresponding floor. The audible and visual alarm light 51 is used to combine the two warning methods of light and alarm sound, thereby improving the warning effect. By lighting up the floor prompt lights 52 on each protective gate 3 indicating the corresponding floor, it is convenient to remind the staff which floor's protective gate 3 is opened and which floor is using the lifting platform to enter and exit materials.

[0025] Preferably, a lock plate 61 is provided on the first door leaf 31, and a lock buckle 62 is provided on the second door leaf 32. The lock plate 61 is used to buckle the lock buckle 62 to lock the first door leaf 31 and the second door leaf 32. Through the buckling of the lock plate 61 and the lock buckle 62, the first door leaf 31 and the second door leaf 32 can be tightly locked, effectively preventing unauthorized entry or accidental opening. The first door leaf 31 and the second door leaf 32 can be safely operated in a closed state, and at the same time, the operation is not easily affected by external forces and shaken or shifted, thereby ensuring the safety and stability of the lifting platform 2 during operation.

[0026] Preferably, both the first door leaf 31 and the second door leaf 32 are explosion-proof door leaves, which meet the requirements of explosion-proof performance in high-risk environments such as Class A workshops.

[0027] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. An interlocking alarm device for protective doors of multi-layer lifting platforms in Class A workshops, characterized in that: It includes a lifting platform, multiple protective gates and an interlocking control component. The lifting platform is arranged in the shaft. The protective gates are arranged on the door openings of each layer of the shaft. An alarm light group is provided on the protective gates. The interlocking control component is electrically connected to the control end of the lifting platform. The interlocking control component is used to detect the opening and closing of the protective gates. When it is sensed that one of the protective gates is opened, the interlocking control component is also used to control the lifting platform to stop running and light up the alarm light group on the protective gate.

2. The interlock alarm device for protective doors of multi-layer lifting platforms in Class A workshops according to claim 1 is characterized in that: The interlocking control component includes a controller and multiple explosion-proof contacts, and the multiple explosion-proof contacts are respectively arranged above the protective gate. The explosion-proof contacts are electrically connected to the input end of the controller, and the explosion-proof contacts are used to detect the opening and closing of the protective gate. The output end of the controller is electrically connected to the alarm light group and the control end of the lifting platform.

3. The interlock alarm device for protective doors of multi-layer lifting platforms in Class A workshops according to claim 2 is characterized in that: The protective gate comprises a first door leaf and a second door leaf, wherein the first door leaf and the second door leaf are respectively hinged to the left and right sides of the door opening through door hinges, and the explosion-proof contacts are arranged above the first door leaf and the second door leaf.

4. The interlock alarm device for protective doors of multi-layer lifting platforms in Class A workshops according to claim 2 is characterized in that: The alarm light group includes an audible and visual alarm light and a plurality of floor prompt lights. When one of the protective gates is opened, the controller lights up the audible and visual alarm light on the protective gate and the floor prompt lights indicating the corresponding floors on each of the protective gates.

5. The interlock alarm device for protective doors of multi-layer lifting platforms in Class A workshops according to claim 3 is characterized in that: The first door leaf is provided with a lock plate, and the second door leaf is provided with a lock buckle. The lock plate is used to buckle the lock buckle to lock the first door leaf and the second door leaf.

6. The interlock alarm device for protective doors of multi-layer lifting platforms in Class A workshops according to claim 5 is characterized in that: The first door leaf and the second door leaf are both explosion-proof door leaves.

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