Air shower with overcrowding alarm function

Abstract

The utility model discloses an overload alarm air shower, and particularly relates to the technical field of air showers, the overload alarm air shower comprises an air shower bin body, one end part of the air shower bin body is provided with a bin door, and an intelligent door lock is connected between the middle edge of the bin door and the air shower bin body; a face recognition access control device is installed on the side, close to the bin door, of the outer wall of the top of the air shower bin body, an alarm is installed above the face recognition access control device, a single-chip microcomputer is installed below the face recognition access control device, and an entering limiting mechanism is arranged on the inner side, close to the bin door, of the interior of the air shower bin body. On the basis of the requirement for clean environment control, personnel passing each time are controlled through the entry limiting mechanism, air quality reduction and potential safety hazards caused by excessive personnel are avoided by means of the separation bar angular displacement sensor, safety and sanitation in a specific environment are guaranteed, and the service life of the separation bar is prolonged. And the number of people entering the air shower can be conveniently detected and judged.

Description

Technical Field

[0001] This utility model relates to the field of air shower technology, and more specifically, to an overcrowding alarm air shower. Background Technology

[0002] An air shower is an air purification device primarily used at the entrance of cleanrooms or dust-free workshops to reduce contamination from people entering and exiting the cleanroom. An overcrowding alarm air shower is a high-tech purification device widely used in laboratories, precision machinery, pharmaceuticals, food, bioengineering, and other industrial and research fields to control air cleanliness levels.

[0003] Existing air showers are not convenient for controlling the number of people entering, and overcrowding often occurs. The cleanroom environment cannot be better controlled, resulting in decreased air quality and safety hazards due to overcrowding. In other words, safety and hygiene issues need to be improved in terms of the number of people entering. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides an overcrowding alarm air shower room.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an overcrowding alarm air shower, comprising an air shower chamber, a door at one end of the air shower chamber, an intelligent door lock connected between the middle edge of the door and the air shower chamber, a facial recognition access control device installed on the top outer wall of the air shower chamber near the door, an alarm installed above the facial recognition access control device, and a microcontroller installed below the facial recognition access control device, an entry restriction mechanism provided inside the air shower chamber near the door, and a weighing detection mechanism provided at the bottom of the air shower chamber behind the entry restriction mechanism.

[0006] As a further improvement to the technical solution of this utility model, the end of the air shower chamber is provided with an opening for installing a matching chamber door, and one side edge of the chamber door is rotatably connected to the air shower chamber via a hinge.

[0007] As a further improvement to the technical solution of this utility model, the outer wall of the middle part of the compartment door is provided with a groove for inserting the lock tongue of the smart door lock.

[0008] As a further improvement to the technical solution of this utility model, the face recognition access control device, the alarm and the microcontroller are all fixedly installed on the outer wall of the air shower chamber by screws.

[0009] As a further improvement to the technical solution of this utility model, the entry restriction mechanism includes a rotating column arranged vertically inside the air shower chamber. Bearing seats are installed on the upper and lower inner walls of the air shower chamber at the end positions corresponding to the rotating column. An angular displacement sensor for detecting the rotation angle of the rotating column is installed on the outer wall of the bearing seats. Several partitions are arranged in a ring at equal intervals on the outer wall of the rotating column.

[0010] As a further improvement to the technical solution of this utility model, the partition is welded and fixed to the outer wall of the rotating column, and the bearing seat is fixedly connected to the inner wall of the air shower chamber by screws.

[0011] As a further improvement to the technical solution of this utility model, the weighing and detection mechanism includes a pedal installed at the bottom of the air shower chamber cavity, pressure sensors are installed at the bottom of the pedal near the four corners, and the upper surface of the pedal is provided with anti-slip texture.

[0012] The beneficial effects of this utility model are:

[0013] This invention, based on the requirements for clean environment control, controls the passage of personnel through an access restriction mechanism. Utilizing angular displacement sensors on the partitions, it avoids air quality degradation and safety hazards caused by overcrowding, ensuring safety and hygiene in a specific environment. Personnel must have their faces recorded by a facial recognition access control device to unlock the smart door, which in turn opens the door. Once inside, the access restriction mechanism, based on the rotation angle of the rotating column detected by the angular displacement sensor, roughly analyzes the number of personnel entering. If the number exceeds the limit, the smart door will not lock, and the door will not close. Simultaneously, to prevent personnel from entering without adhering to the spacing between adjacent partitions, a weighing detection mechanism is incorporated. This limits the maximum number of personnel entering a single air shower and sets an alarm weight value. If the weighing data exceeds the alarm value, the microcontroller controls the alarm to sound, and the door cannot be closed. This facilitates weighing of personnel entering the air shower, further assisting in the detection of personnel numbers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation structure of the entry restriction mechanism in this utility model.

[0016] Figure 3 This is a top view of the entry restriction mechanism in this utility model.

[0017] Figure 4 This is a side sectional view of the air shower chamber of this utility model.

[0018] Figure 5 This is a schematic diagram of the electrical structure control principle in this utility model.

[0019] The attached diagram is labeled as follows: 1. Air shower chamber body; 2. Chamber door; 3. Smart door lock; 4. Facial recognition access control device; 5. Alarm; 6. Microcontroller; 7. Rotating column; 8. Bearing seat; 9. Divider; 10. Angular displacement sensor; 11. Pedal; 12. Pressure sensor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figure 1-5 The air shower shown includes an air shower chamber 1, with a door 2 at one end of the air shower chamber 1. A smart door lock 3 is connected between the middle edge of the door 2 and the air shower chamber 1. A face recognition access control device 4 is installed on the top outer wall of the air shower chamber 1 near the door 2. An alarm 5 is installed above the face recognition access control device 4, and a microcontroller 6 is installed below the face recognition access control device 4. An entry restriction mechanism is provided inside the air shower chamber 1 near the door 2, and a weighing detection mechanism is provided at the bottom of the air shower chamber 1 behind the entry restriction mechanism.

[0022] As attached Figure 1 As shown, the end of the air shower chamber 1 is provided with an opening for the matching chamber door 2. The edge of one side of the chamber door 2 is connected to the air shower chamber 1 by a hinge, which facilitates the opening and closing of the chamber door 2.

[0023] As attached Figure 1 As shown, the outer wall of the middle part of the compartment door 2 is provided with a groove for the smart door lock 3 to insert its bolt, so that the smart door lock 3 can lock the compartment door 2.

[0024] As attached Figure 1 and attached Figure 4 As shown, the face recognition access control device 4, the alarm 5, and the microcontroller 6 are all fixedly installed on the outer wall of the air shower chamber 1 with screws, which facilitates the installation and fixation of the face recognition access control device 4, the alarm 5, and the microcontroller 6 on the outer wall of the air shower chamber 1.

[0025] As attached Figure 1-3As shown, the entry restriction mechanism includes a rotating column 7 vertically arranged inside the air shower chamber 1. Bearing seats 8 are installed on the upper and lower inner walls of the air shower chamber 1 at the end positions corresponding to the rotating column 7. An angular displacement sensor 10 for detecting the rotation angle of the rotating column 7 is installed on the outer wall of the bearing seat 8. Several partitions 9 are arranged in a ring at equal intervals on the outer wall of the rotating column 7. The partitions 9 are welded and fixed to the outer wall of the rotating column 7. The bearing seats 8 are fixed to the inner wall of the air shower chamber 1 by screws, which facilitates the restriction of the number of people entering the air shower chamber 1.

[0026] As attached Figure 4 As shown, the weighing and detection mechanism includes a pedal 11 installed at the bottom of the inner cavity of the air shower chamber 1. Pressure sensors 12 are installed at the bottom of the pedal 11 near the four corners. The upper surface of the pedal 11 is provided with anti-slip texture, which facilitates the weighing of personnel entering the air shower chamber 1 and further assists in detecting the number of personnel.

[0027] Among them, the smart door lock 3, the facial recognition access control device 4, the alarm 5, the microcontroller 6, the angular displacement sensor 10, and the pressure sensor 12 all adopt common models and types on the market, and there is no specific limitation. For specific circuit connection methods, please refer to the instruction manual. Figure 5 .

[0028] Working principle: This utility model designs an overcrowding alarm air shower, the specific structure of which is shown in the attached instruction manual. Figure 1-5As shown, the overcrowding alarm air shower designed in this technical solution only allows adult staff to enter. During use, personnel need to have their faces recognized by the facial recognition access control device 4 before the smart door lock 3 opens, which in turn opens the door 2. At this point, personnel enter. Through the set entry restriction mechanism, referencing the exit rotation design of some stations, it is only necessary to control the gap between the two partitions 9 to allow only one person to enter at a time. After personnel enter, the door 2 is closed, waiting for the next person to enter. If multiple people enter the door 2 at the same time before it is closed, only one person completes the facial recognition record. In this case, after the person enters through the entry restriction mechanism, the rotation angle of the partition 9 on the rotating column 7 is calculated, taking the gap between two partitions 9 as one person. Since multiple partitions 9 are arranged equidistantly in a ring on the rotating column 7, the rotation angle of the two partitions 9 can be calculated based on the number of partitions 9. The included angle between adjacent partitions 9 can be used to roughly analyze the number of people entering based on the rotation angle of the rotating column 7 detected by the angular displacement sensor 10. If the number of people exceeds the limit, the smart door lock 3 will not lock and the door 2 will not close. At the same time, in order to prevent people from entering without following the gaps between adjacent partitions, a weighing detection mechanism is also designed in this technical solution. Taking the maximum number of people entering a single air shower as four as an example, it is only necessary to set the basic weight of a single person to 130 catties, so four people would weigh 520 catties. If five people enter, this weight will be exceeded. The preset alarm weight is 580-600 catties. After the weighing data exceeds 600 catties, the microcontroller 6 controls the alarm 5 to sound an alarm, and the door 2 cannot be closed, which facilitates the weighing of people entering the air shower chamber 1 and further achieves the auxiliary effect of detecting the number of people.

[0029] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An over-occupancy alarm deluge shower room comprising a deluge shower room housing (1), characterized in that: One end of the air shower chamber (1) is provided with a door (2). A smart door lock (3) is connected between the middle edge of the door (2) and the air shower chamber (1). A face recognition access control device (4) is installed on the top outer wall of the air shower chamber (1) near the door (2). An alarm (5) is installed above the face recognition access control device (4), and a microcontroller (6) is installed below the face recognition access control device (4). An entry restriction mechanism is provided inside the air shower chamber (1) near the door (2), and a weighing detection mechanism is provided at the bottom of the air shower chamber (1) behind the entry restriction mechanism.

2. The super-employee alarm wind room according to claim 1, wherein: The air shower chamber (1) has an opening at its end for mounting a matching chamber door (2), and the edge of one side of the chamber door (2) is rotatably connected to the air shower chamber (1) via a hinge.

3. The super-employee alarm air shower room according to claim 1, wherein: The outer wall of the middle part of the door (2) is provided with a groove for the lock tongue of the smart door lock (3) to be inserted.

4. The overcrowding alarm air shower room according to claim 1, characterized in that: The facial recognition access control device (4), alarm (5) and microcontroller (6) are all fixedly installed on the outer wall of the air shower chamber (1) by screws.

5. The super-employee alarm air shower room according to claim 1, wherein: The entry restriction mechanism includes a rotating column (7) arranged vertically inside the air shower chamber (1). Bearing seats (8) are installed on the upper and lower inner walls of the air shower chamber (1) at the end positions of the rotating column (7). An angular displacement sensor (10) for detecting the rotation angle of the rotating column (7) is installed on the outer wall of the bearing seat (8). Several partitions (9) are arranged in a ring at equal intervals on the outer wall of the rotating column (7).

6. The super-employee alarm air shower room according to claim 5, wherein: The partition (9) is welded and fixed to the outer wall of the rotating column (7), and the bearing seat (8) is fixed to the inner wall of the air shower chamber (1) by screws.

7. The overcrowding alarm air shower room according to claim 1, characterized in that: The weighing and detection mechanism includes a pedal (11) installed at the bottom of the inner cavity of the air shower chamber (1). Pressure sensors (12) are installed at the bottom of the pedal (11) near the four corners. The upper surface of the pedal (11) is provided with anti-slip texture.

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