Automatic door with gas detection effect

Abstract

The application belongs to the technical field of automatic door with gas detection effect, and particularly relates to an automatic door with gas detection effect, which comprises a door frame, a pair of door bodies symmetrically hinged in one end of the door frame, a carbon dioxide detection and adjustment unit arranged on the door body, and an electric push rod hinged to one end of the door body and the other end of the electric push rod hinged to the top of the door frame. A detection mechanism is arranged in the door frame and comprises a lifting frame located in the door frame, two groups of flammable and explosive detectors arranged on the lifting frame, three groups of distance sensors fixedly installed on the lifting frame, two groups of receiving plates fixedly installed on the two sides of the lifting frame, a group of receiving plates screwed with a screw rod, and the other group of receiving plates slidingly connected with a sliding rod. The flammable and explosive detectors are driven to lift the lifting frame to detect the staff, to determine whether the staff carries flammable and explosive liquid and whether the door body is allowed to be opened, so as to prevent the staff from carrying flammable and explosive liquid into the warehouse.

Description

Technical Field

[0001] This invention belongs to the field of automatic door technology with gas detection effect, specifically an automatic door with gas detection effect. Background Technology

[0002] A warehouse consists of storage rooms, transportation and conveying facilities, pipelines and equipment for entering and leaving the warehouse, fire protection facilities, and management rooms. It is a general term for buildings and places for storing and keeping goods. Warehouses are usually closed to prevent theft of goods. Because warehouses are closed for a long time, the air circulation inside the warehouse is poor, which can easily lead to a high concentration of carbon dioxide inside. If staff enter the warehouse, it will cause harm to the staff.

[0003] Patent CN103375108A discloses an automatic door with carbon dioxide detection and regulation function, including an automatic door body and a carbon dioxide detection and regulation unit installed on the automatic door body. The carbon dioxide detection and regulation unit consists of a carbon dioxide concentration detection sensor, a regulation controller, a switch unit, and a fan. This solution uses the carbon dioxide concentration detection sensor to detect the gas inside the automatic door body and determine whether the carbon dioxide concentration in the warehouse exceeds the standard. If it exceeds the standard, the fan will discharge the gas inside the automatic door body to the outside of the automatic door body, thereby reducing the carbon dioxide concentration inside the automatic door body to a safe concentration. The operation is simple and stable, and it is highly practical.

[0004] In the above-mentioned solution, the carbon dioxide concentration detection sensor can only detect the carbon dioxide concentration outside the warehouse and cannot detect other flammable and explosive gases. When workers enter the warehouse, if they accidentally bring flammable and explosive liquids into the warehouse, the liquids will release flammable and explosive gases into the warehouse. As the flammable and explosive gases accumulate, they can easily cause a warehouse fire, resulting in huge personnel and economic losses. Therefore, this invention provides an automatic door with gas detection capabilities. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The automatic door with gas detection effect of the present invention includes a door frame, a pair of door bodies symmetrically hinged inside one end of the door frame, a carbon dioxide detection and adjustment unit is provided on the door body, and one end of an electric push rod is hinged to the upper end of the door body, the other end of the electric push rod is hinged to the top of the door frame, a detection mechanism is provided inside the door frame, the detection mechanism includes a lifting frame, the lifting frame is located inside the door frame, two sets of flammable and explosive detectors are respectively provided on the upper and lower sides of the lifting frame, three sets of distance sensors are fixedly installed on the lifting frame, two sets of receiving plates are fixedly installed on both sides of the lifting frame, one set of receiving plates is screwed to a screw rod, and the other set of receiving plates is slidably connected to a slide rod, rectangular slots are opened on both sides of the door frame, the screw rod is rotatably installed in one set of rectangular slots, the slide rod is fixedly installed in the other set of rectangular slots, and a retraction slot is opened at the bottom of the door frame, and a platform is fixedly installed in the retraction slot;

[0007] By driving the lifting frame to rise and fall, the flammable and explosive detector can detect personnel, determine whether they are carrying flammable and explosive liquids, and whether the door should be opened, thereby preventing personnel from bringing flammable and explosive liquids into the warehouse.

[0008] Preferably, the lifting frame includes a frame, two sets of support plates are fixedly connected to both sides of the frame, two sets of movable frames are respectively set on the upper and lower sides of the frame, a flammable and explosive detector is fixedly installed on the movable frame, a bracket is set at the rear of the movable frame, the bracket is fixedly installed at the edge of the frame, three sets of distance sensors are fixedly installed on the bracket, four sets of swing rods are distributed at equal angles in the inner circle of the frame, a drive shaft is fixedly connected to one end of the swing rod, two sets of guide grooves are opened at both ends of the movable frame, the guide grooves are slidably connected to the slide rail, the slide rail is fixedly installed on the frame, four sets of hinge grooves are opened at equal angles in the inner circle of the frame, one end of the swing rod is located in the hinge groove, and the drive shaft is rotatably installed in the hinge groove, a guide groove is opened at the bottom of the movable frame, and a pin is set at the other end of the swing rod, the pin is located in the guide groove;

[0009] As the flammable and explosive detector moves downward to scan the human body, it measures the distance relative to the body through a distance sensor. It can automatically adjust the position of the flammable and explosive detector relative to the human body, so that the detector can always maintain the optimal detection distance relative to the human body, ensuring the accuracy of the device in detecting body fat and thinness.

[0010] Preferably, a support mechanism is provided in the retraction groove. The support mechanism includes a lifting plate, which is movably installed in the retraction groove. Two sets of first springs are provided below the lifting plate. Two sets of movable grooves are opened on both sides of the lifting plate. A limiting plate is movably inserted into the movable groove. A second spring is provided at the tail of the limiting plate. The platform is movably inserted into the lifting plate. The two sets of first springs are symmetrically distributed in the retraction groove. A push plate is fixedly connected to the lower end face of the receiving plate. A clearance groove for inserting the push plate is opened on both sides of the retraction groove. An inclined surface is provided at the other end of the limiting plate. The push plate is located directly above the inclined surface. Two sets of limiting slide grooves are symmetrically opened on the lifting plate. The limiting slide grooves are connected to the movable grooves. A slider is provided on the upper end face of the limiting plate. The slider is located in the limiting slide groove.

[0011] Under the action of the first spring's rebound force, the lifting plate is made flush with the upper end of the retraction groove. At the same time, under the action of the second spring's rebound force, the other end of the limiting plate extends to the outside of the movable groove, and the other end of the limiting plate is located above the retraction groove. The two sets of limiting plates support the entire lifting plate, thereby facilitating the passage of goods-carrying tools through the door frame and ensuring that goods-carrying tools can pass through the door frame smoothly and quickly.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. By driving the lifting frame to rise and fall, the flammable and explosive detector can detect personnel, determine whether they are carrying flammable and explosive liquids, and whether the door should be opened, thereby preventing personnel from bringing flammable and explosive liquids into the warehouse.

[0014] 2. As the lifting frame moves downwards, the distance sensor located on the lower side of the frame first measures the distance relative to the worker's head. This distance is much smaller than the preset distance value. Then, four sets of motors drive four sets of drive shafts to rotate. The drive shafts drive the swing arm and the pin to rotate together. At the same time, the pin presses against the wall of the guide groove and slides along the guide groove, causing the movable frame to move along the slide rail towards the human body. Simultaneously, the position of the flammable and explosive detector relative to the human body is pulled closer. Therefore, as the flammable and explosive detector moves downwards to scan the human body, the distance sensor measures the distance relative to the human body, and the position of the flammable and explosive detector relative to the human body can be automatically adjusted so that the flammable and explosive detector can always maintain the optimal detection distance relative to the human body, ensuring the accuracy of the device in detecting body shape.

[0015] 3. During the downward movement of the lifting frame into the retraction slot, the lower end of the push plate will first press against the inclined surface of the other end of the limit plate. The lower end of the push plate will slide along the inclined surface, while the limit plate slides into the movable slot and compresses the second spring. At the same time, the slider will slide along the limit groove with the limit plate until the other end of the limit plate enters the movable slot. Simultaneously, the lower end of the push plate will insert into the clearance slot, and the other end of the limit plate will slide lower than the push plate. At this time, the lifting plate will be squeezed by the two sets of brackets on the lifting frame, causing the lifting plate to slide downward along the retraction slot and compress the first spring. After the inspection of the personnel is completed, the lifting frame returns to the initial position. Under the rebound force of the first spring, the lifting plate is flush with the upper end of the retraction slot. At the same time, under the rebound force of the second spring, the other end of the limit plate will extend to the outside of the movable slot and be located above the retraction slot. The two sets of limit plates support the entire lifting plate, thus facilitating the passage of the goods-carrying tool through the door frame and ensuring that the goods-carrying tool can pass through the door frame smoothly and quickly. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the combination of the door frame and the detection mechanism of the present invention.

[0019] Figure 3 This is a cross-sectional view of the door frame and detection mechanism assembly according to the present invention.

[0020] Figure 4 This is a schematic diagram of the combination of the lifting frame, flammable and explosive detector, bracket, distance sensor, and receiving plate of the present invention.

[0021] Figure 5 This is a schematic diagram of the combination of the frame, movable frame, swing arm, and drive shaft of the present invention.

[0022] Figure 6 This is a cross-sectional view of the door frame, frame, support plate, and cross-sectional view of the supporting mechanism assembly of the present invention.

[0023] Figure 7 This is a schematic diagram of the combination of the receiving plate and the cross-sectional support mechanism of the present invention.

[0024] In the diagram: 1. Door frame; 101. Recessed groove; 102. Platform; 103. Rectangular groove; 104. Clearance groove; 2. Door body; 3. Carbon dioxide detection and adjustment unit; 4. Electric push rod; 5. Detection mechanism; 6. Support mechanism; 501. Lifting frame; 502. Flammable and explosive detector; 503. Bracket; 504. Distance sensor; 505. Support plate; 5051. Push plate; 506. Screw; 507. Slide rod; 5011, frame; 111, slide rail; 112, hinge groove; 5012, movable frame; 121, guide groove; 122, guide groove; 5013, swing rod; 131, pin; 5014, drive shaft; 601, lifting plate; 602, first spring; 603, movable groove; 6031, limiting slide groove; 604, limiting plate; 6041, inclined plane; 6042, slider; 605, second spring. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Example 1

[0027] like Figures 1 to 3 As shown in the embodiment of the present invention, an automatic door with gas detection capability includes a door frame 1. A pair of door bodies 2 are symmetrically hinged to one end of the door frame 1. A carbon dioxide detection and adjustment unit 3 is provided on the door body 2, and one end of an electric push rod 4 is hinged to the upper end of the door body 2. The other end of the electric push rod 4 is hinged to the top of the door frame 1. A detection mechanism 5 is provided inside the door frame 1. The detection mechanism 5 includes a lifting frame 501, which is located inside the door frame 1. Two sets of flammable and explosive detectors 502 are respectively provided on the upper and lower sides of the lifting frame 501. Three sets of distance sensors 504 are fixedly installed on the lifting frame 501. Two sets of receiving plates 505 are fixedly installed on both sides of the lifting frame 501. One set of receiving plates 505 is screwed to a screw rod 506, and the other set of receiving plates 505 is slidably connected to a slide rod 507. Rectangular grooves 103 are opened on both sides inside the door frame 1. The screw rod 506 is rotatably installed in one set of rectangular grooves 103, and the slide rod 507 is fixedly installed in the other set of rectangular grooves 103. A retraction groove 101 is opened at the bottom inside the door frame 1, and a platform 102 is fixedly installed in the retraction groove 101.

[0028] Specifically, the flammable and explosive detector 502 uses internal sensors to detect the concentration of flammable and explosive gases released from flammable and explosive liquids into the air, and converts the measurement results into electrical signals for output, thereby detecting flammable and explosive liquids. The carbon dioxide detection and adjustment unit 3 adopts the corresponding structure in the automatic door with carbon dioxide detection and adjustment function disclosed in CN103375108A. The door frame 1 is fixedly installed at the door opening of the warehouse. The carbon dioxide detection and adjustment unit 3 can monitor the carbon dioxide concentration in the warehouse in real time and adjust the carbon dioxide concentration in the warehouse in real time. In the initial state, the lifting frame 501 is close to the top of the door frame 1, and the door 2 is in the closed state. When the staff needs to enter the warehouse to work, the staff first walks to the platform 102, stands with their legs together and straight, and then the motor drives the screw 506 to rotate, causing another set of receiving plates 505 to drive the lifting frame 501 and four sets of receiving plates 505 to rotate. The flammable and explosive detector 502 and a set of receiving plates 505 move downwards. At the same time, the set of receiving plates 505 slides along the slide bar 507. As the lifting frame 501 moves downwards, the worker passes through the lifting frame 501 headfirst, and the four sets of flammable and explosive detectors 502 begin to scan and detect the worker's body until the lifting frame 501 is submerged in the retraction groove 101, completing the detection of the worker. If the flammable and explosive detector 502 does not detect any abnormality, the electric push rod 4 will push the door 2 to open the door, allowing the worker to enter the warehouse. The lifting frame 501 returns to its initial position. Conversely, the door 2 does not open. Compared with the prior art, by driving the lifting frame 501 to rise and fall, the flammable and explosive detector 502 can detect the worker, determine whether the worker is carrying flammable and explosive liquids, and whether the door 2 is allowed to open, thereby preventing the worker from carrying flammable and explosive liquids into the warehouse.

[0029] like Figures 4 to 5As shown, the lifting frame 501 includes a frame 5011, two sets of support plates 505 fixedly connected to both sides of the frame 5011, and two sets of movable frames 5012 respectively set on the upper and lower sides of the frame 5011. A flammable and explosive detector 502 is fixedly installed on the movable frame 5012. A bracket 503 is provided behind the movable frame 5012, and the bracket 503 is fixedly installed at the edge of the frame 5011. Three sets of distance sensors 504 and four sets of swing rods 5013 are fixedly installed on the bracket 503. The four sets of swing rods 5013 are evenly distributed at angles in the inner circle of the frame 5011 and are fixedly connected. The drive shaft 5014 at one end of the swing arm 5013 and the movable frame 5012 are provided with two sets of guide grooves 121 at both ends. The guide grooves 121 are slidably connected to the slide rails 111. The slide rails 111 are fixedly installed on the frame 5011. The inner ring of the frame 5011 is provided with four sets of hinge grooves 112 at equal angles. One end of the swing arm 5013 is located in the hinge groove 112, and the drive shaft 5014 is rotatably installed in the hinge groove 112. The bottom of the movable frame 5012 is provided with a guide groove 122. The other end of the swing arm 5013 is provided with a pin 131, which is located in the guide groove 122.

[0030] Specifically, due to differences in body size among workers, if the flammable and explosive detector 502 remains stationary on the lifting frame 501, the distance between the detector and workers will be closer for workers with larger builds and farther for workers with smaller builds. This distance affects the accuracy of the detector. Initially, the distance sensor 504 is set with an optimal distance value relative to the human body, and the spacing between the two sets of flammable and explosive detectors 502 is maximized. Therefore, as the lifting frame 501 moves downward, the distance sensor 504 located on the lower side of the frame 5011 will first measure the distance relative to the worker's head. This distance is much smaller than the preset distance value, and then... Four sets of motors drive four sets of drive shafts 5014 to rotate. The drive shafts 5014 drive the swing arm 5013 to rotate together with the pin 131. At the same time, the pin 131 presses against the wall of the guide groove 122 and slides along the guide groove 122, causing the movable frame 5012 to move towards the human body along the slide rail 111. Simultaneously, the position of the flammable and explosive detector 502 relative to the human body is pulled closer. Therefore, as the flammable and explosive detector 502 moves downward to scan the human body, the distance sensor 504 measures the distance relative to the human body, and can automatically adjust the position of the flammable and explosive detector 502 relative to the human body, so that the flammable and explosive detector 502 can always maintain the optimal detection distance relative to the human body, ensuring the accuracy of the device in detecting body fat and thinness.

[0031] Example 2

[0032] like Figures 6 to 7As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a support mechanism 6 is provided in the retraction groove 101, the support mechanism 6 includes a lifting plate 601, the lifting plate 601 is movably installed in the retraction groove 101, two sets of first springs 602 are provided below the lifting plate 601, two sets of movable grooves 603 are opened on both sides of the lifting plate 601, a limiting plate 604 is movably inserted into the movable groove 603, a second spring 605 is provided at the tail of the limiting plate 604, the platform 102 is movably inserted into the lifting plate 601, and the two sets of first springs 602 are symmetrical. Distributed within the retraction groove 101, the lower end face of the receiving plate 505 is fixedly connected to the push plate 5051. The retraction groove 101 has clearance grooves 104 on both sides for inserting the push plate 5051. The other end of the limiting plate 604 is provided with an inclined surface 6041. The push plate 5051 is located directly above the inclined surface 6041. Two sets of limiting slide grooves 6031 are symmetrically provided on the lifting plate 601. The limiting slide grooves 6031 are connected to the movable groove 603. The upper end face of the limiting plate 604 is provided with a slider 6042, which is located within the limiting slide groove 6031.

[0033] Specifically, the width of the clearance groove 104 is smaller than the width of the limiting plate 604. Workers enter the warehouse through this door frame 1, and other tools for transporting goods, such as trolleys, also enter the warehouse through the door frame 1. However, a retraction groove 101 is provided at the bottom of the door frame 1. This retraction groove 101 obstructs the passage of tools carrying goods, affecting their efficiency in passing through the door frame 1. Initially, the lifting plate 601 is flush with the upper end of the retraction groove 101. The other end of the positioning plate 604 extends to the outside of the movable groove 603. During the downward movement of the lifting frame 501 to the retraction groove 101, the lower end of the push plate 5051 will first press against the inclined surface 6041 at the other end of the limiting plate 604. The lower end of the push plate 5051 will slide along the inclined surface 6041. At the same time, the limiting plate 604 slides towards the inside of the movable groove 603 and compresses the second spring 605. Meanwhile, the slider 6042 will move along the limiting groove 604 with the limiting plate 604. 31. Slide until the other end of the limiting plate 604 enters the movable groove 603. At the same time, the lower end of the push plate 5051 will insert into the clearance groove 104. The other end of the limiting plate 604 will slide lower than the push plate 5051. At this time, the lifting plate 601 will be squeezed by the two sets of brackets 503 on the lifting frame 501, causing the lifting plate 601 to slide down along the retraction groove 101 and compress the first spring 602. After the inspection of the staff is completed, the lifting frame 501 returns to the initial position. Under the rebound force of the first spring 602, the lifting plate 601 is flush with the upper end of the retraction groove 101. At the same time, under the rebound force of the second spring 605, the other end of the limiting plate 604 will extend to the outside of the movable groove 603 and the other end of the limiting plate 604 will be above the retraction groove 101. The two sets of limiting plates 604 support the entire lifting plate 601, thereby facilitating the passage of the tool carrying the goods through the door frame 1 and ensuring that the tool carrying the goods can pass through the door frame 1 smoothly and quickly.

[0034] Working principle: The worker first walks onto platform 102, stands with legs together and straight, and then the motor drives the screw 506 to rotate, causing another set of receiving plates 505 to move the lifting frame 501, along with four sets of flammable and explosive detectors 502 and one set of receiving plates 505, downwards. At the same time, one set of receiving plates 505 slides along the slide bar 507. As the lifting frame 501 moves downwards, the worker passes through the lifting frame 501 headfirst, and the four sets of flammable and explosive detectors 502 begin to scan and detect the worker's body until the lifting frame 501 is submerged in the retraction groove 101, completing the detection of the worker. If the flammable and explosive detectors 502 do not detect any abnormalities, the electric push rod 4 will push the door 2 to open the door, allowing the worker to enter the warehouse. The lifting frame 501 returns to its initial position. Otherwise, the door 2 will not open.

[0035] As the lifting frame 501 moves downward, the distance sensor 504 located on the lower side of the frame 5011 first measures the distance relative to the worker's head. This distance is much smaller than the preset distance value. Then, four sets of motors drive four sets of drive shafts 5014 to rotate. The drive shafts 5014 drive the swing arm 5013 to rotate together with the pin 131. At the same time, the pin 131 presses against the wall of the guide groove 122 and slides along the guide groove 122, causing the movable frame 5012 to move towards the human body along the slide rail 111. At the same time, the position of the flammable and explosive detector 502 relative to the human body is pulled closer. Therefore, as the flammable and explosive detector 502 moves downward to scan the human body, the distance sensor 504 measures the distance relative to the human body, and the position of the flammable and explosive detector 502 relative to the human body can be automatically adjusted.

[0036] During the downward movement of the lifting frame 501 to the retraction groove 101, the lower end of the push plate 5051 will first press against the inclined surface 6041 at the other end of the limiting plate 604. The lower end of the push plate 5051 will slide along the inclined surface 6041. At the same time, the limiting plate 604 slides towards the interior of the movable groove 603 and compresses the second spring 605. Simultaneously, the slider 6042 will slide along the limiting groove 6031 with the limiting plate 604 until the other end of the limiting plate 604 enters the movable groove 603. At the same time, the lower end of the push plate 5051 will insert into the clearance groove 104. The other end of the limiting plate 604... One end will slide lower than the push plate 5051. At this time, the lifting plate 601 will be squeezed by the two sets of brackets 503 on the lifting frame 501, causing the lifting plate 601 to slide down along the retraction groove 101 and compress the first spring 602. After the inspection of the staff is completed, the lifting frame 501 returns to the initial position. Under the rebound force of the first spring 602, the lifting plate 601 is flush with the upper end of the retraction groove 101. At the same time, under the rebound force of the second spring 605, the other end of the limiting plate 604 will extend to the outside of the movable groove 603, and the other end of the limiting plate 604 is located above the retraction groove 101.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic door with gas detection capability, comprising a door frame (1), characterized in that: A pair of door bodies (2) are symmetrically hinged inside one end of the door frame (1). A carbon dioxide detection and adjustment unit (3) is provided on the door body (2). One end of an electric push rod (4) is hinged to the upper end of the door body (2). The other end of the electric push rod (4) is hinged to the top inside the door frame (1). A detection mechanism (5) is provided inside the door frame (1). The testing organization (5) includes: The lifting frame (501) is located inside the door frame (1); Two sets of flammable and explosive detectors (502) are respectively installed on the upper and lower sides of the lifting frame (501). Two sets of support plates (505) are fixedly installed on both sides of the lifting frame (501); One set of the receiving plates (505) is screwed to the screw rod (506), and the other set of the receiving plates (505) is slidably connected to the slide rod (507). The door frame (1) has rectangular slots (103) on both sides inside. The screw (506) is rotatably installed in one set of rectangular slots (103), and the slide rod (507) is fixedly installed in another set of rectangular slots (103). The bottom of the door frame (1) is provided with a recess groove (101), and a platform (102) is fixedly installed in the recess groove (101). The lifting frame (501) includes: The frame (5011) is fixedly connected to both sides of the two sets of support plates (505); Two sets of movable frames (5012) are respectively set on the upper and lower sides of the frame (5011), and the flammable and explosive detector (502) is fixedly installed on the movable frame (5012); A bracket (503) is provided behind the movable frame (5012), and the bracket (503) is fixedly installed at the edge of the frame (5011); Three sets of distance sensors (504) are fixedly installed on the bracket (503); Four sets of swing arms (5013) are distributed at equal angles in the inner ring of the frame (5011); A drive shaft (5014) is fixedly connected to one end of the swing arm (5013). The movable frame (5012) has two sets of guide grooves (121) at both ends. The guide grooves (121) are slidably connected to the slide rails (111). The slide rails (111) are fixedly installed on the frame (5011). The frame (5011) has four sets of hinge slots (112) at equal angles in the inner ring. One end of the swing rod (5013) is located in the hinge slot (112), and the drive shaft (5014) is rotatably installed in the hinge slot (112).

2. An automatic door with gas detection function according to claim 1, characterized in that: The bottom of the movable frame (5012) is provided with a guide groove (122), and the other end of the swing rod (5013) is provided with a pin (131), which is located in the guide groove (122).

3. An automatic door with gas detection function according to claim 2, characterized in that: A support mechanism (6) is provided in the retraction groove (101), and the support mechanism (6) includes a lifting plate (601), which is movably installed in the retraction groove (101); Two sets of first springs (602) are provided below the lifting plate (601); Two sets of movable slots (603) are provided on both sides of the lifting plate (601); The limiting plate (604) is movably inserted into the movable slot (603); A second spring (605) is provided at the tail of the limiting plate (604).

4. An automatic door with gas detection function according to claim 3, characterized in that: The platform (102) is movably connected to the lifting plate (601), and two sets of the first springs (602) are symmetrically distributed in the retraction groove (101).

5. An automatic door with gas detection function according to claim 4, characterized in that: The lower end face of the receiving plate (505) is fixedly connected to the push plate (5051), and the two sides of the retraction groove (101) are provided with clearance grooves (104) for inserting the push plate (5051).

6. An automatic door with gas detection function according to claim 5, characterized in that: The limiting plate (604) has an inclined surface (6041) at the other end, and the push plate (5051) is located directly above the inclined surface (6041).

7. An automatic door with gas detection function according to claim 6, characterized in that: Two sets of limiting grooves (6031) are symmetrically opened on the lifting plate (601). The limiting grooves (6031) are connected to the movable groove (603). A slider (6042) is provided on the upper end face of the limiting plate (604). The slider (6042) is located in the limiting groove (6031).

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