Light alarm device of security door

Abstract

The utility model belongs to the technical field of security check doors, and discloses a light alarm device of a security check door, which comprises a security check door main body, a metal detector is arranged in the security check door main body, and a driving mechanism for driving a detector to rotate on one side of the metal detector is arranged between the inner walls of the left side and the right side of the security check door main body. Clamping grooves are formed in the front side and the rear side of the driving mechanism, supporting mechanisms are installed in the two sets of clamping grooves of the driving mechanism, a protection mechanism is arranged on the upper surface of the driving mechanism, and a positioning mechanism is arranged on the side, away from the metal detector, of the protection mechanism. The whole body of a detector can be detected without rotating when the detector stands on one side of the metal detector, so that the labor amount and time consumed by the subsequent detector in the detection process by using the device are reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of security inspection equipment, in particular to a light alarm device for a security inspection door. Background Art

[0002] A security gate is a detection device that detects whether a person is carrying metal objects. It is also called a metal detection gate. Metal detection security gates are mainly used in airports, stations, large conferences and other public places with large crowds to check for metal objects hidden on the body, such as guns, controlled knives, etc.

[0003] For example, a utility model with announcement number CN214623768U discloses a security door light alarm device, including a security door and a gate, characterized in that a left column and a right column are fixedly installed at the bottom of the security door, self-locking universal wheels are fixedly installed at the bottom of the left column and the right column, a control box is fixedly connected to the top of the left column and the right column, a display screen is fixedly installed on one side of the control box, a group of alarm lights are fixedly installed on the top of the control box, a card reading identification module is fixedly installed on one side of the right column, and the gate is movably installed on one side inside the security door. The device has a simple structure and a novel design. A control line is used to connect the first circuit or the second circuit so that the working states of the first circuit and the second circuit are opposite. The first circuit can be used to replace the second circuit, or the second circuit can be used to replace the first circuit. This is conducive to reducing the situation where the alarm light of the security door is damaged and cannot be used, thereby achieving the effect of extending the security inspection life of the security door.

[0004] In the process of implementing this application, it was found that the technology has the following problems: the existing security door light alarm device mostly relies on the detection personnel to rotate themselves during use to complete a comprehensive detection of the detection personnel, but most people with mobility impairments find it difficult to rotate when passing through the device, so that subsequent staff do not need to support the detection personnel, thereby increasing the labor consumed by subsequent staff in operating the device, thereby reducing the practicality of the equipment.

[0005] For this reason, a light alarm device for a security door is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that most people with mobility impairments find it difficult to turn the device when passing through it, so that subsequent staff do not need to support the detection personnel, thereby increasing the labor consumed by subsequent staff when operating the device. The utility model provides a light alarm device for a security door.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A light alarm device for a security door comprises a security door body, wherein a metal detector is provided inside the security door body, a driving mechanism for driving an inspector to rotate on one side of the metal detector is arranged between the left and right inner walls of the security door body, a card slot is provided on both the front and rear sides of the driving mechanism, a supporting mechanism is installed inside the two groups of card slots of the driving mechanism, a protective mechanism is arranged on the upper surface of the driving mechanism, and a positioning mechanism is arranged on the side of the protective mechanism away from the metal detector.

[0009] Furthermore, the driving mechanism includes a connecting plate and a U-shaped fixing plate, the upper surface of the connecting plate is provided with a groove, the connecting plate is installed between the left and right inner walls of the security door body, a fixed disc is rotatably connected inside the groove of the connecting plate, a top plate is installed on the upper surface of the fixed disc, and two groups of hydraulic cylinders are provided on the lower surface of the connecting plate, through holes are provided on the left and right upper surfaces of the U-shaped fixing plate, and output ends of the two groups of hydraulic cylinders are installed at the bottom of the inner walls of the two groups of through holes of the U-shaped fixing plate, a motor is provided at the bottom of the inner wall of the U-shaped fixing plate, a positioning block is installed on the output shaft of the motor, a slot is provided on the lower surface of the fixed disc, the position of the fixed disc slot is located on the moving path of the positioning block, and the position of the top plate is located on one side of the metal detector.

[0010] Furthermore, the protective mechanism includes two groups of guardrails 1 and hinges, the two groups of guardrails 1 are installed on the upper surface of the top plate, the left group of guardrails 1 is hinged to guardrail 2 through the hinge, and the right group of guardrails 1 is provided with a slot on the front side, and a contact switch is arranged inside the slot of the right group of guardrails 1, the contact switch is located on the rotation path of the guardrail 2, and the contact switch is electrically connected to the control end of the motor.

[0011] Furthermore, the positioning mechanism includes an L-shaped fixing rod and a U-shaped clamping block, the U-shaped clamping block is installed on the side of the guardrail one in the right group away from the metal detector, and the L-shaped fixing rod is installed on the side of the guardrail two away from the metal detector. The position of the internal groove of the U-shaped clamping block is located on the rotation path of the L-shaped fixing rod, a fixing block is arranged inside the groove of the U-shaped clamping block, and through holes are opened on the side of the fixing block and the L-shaped fixing rod away from the metal detector, and rods are inserted into the through holes of the fixing block and the L-shaped fixing rod.

[0012] Furthermore, the two groups of support mechanisms include support inclined plates, and the front and rear sides of the connecting plate are provided with slots. The two groups of support inclined plates are respectively clamped in the two groups of slots of the connecting plate, and the lower surfaces of the two groups of support inclined plates are both in contact with the ground. The lower end inclined surfaces of the two groups of support inclined plates are provided with slots, and the slots of the two groups of support inclined plates are slidably connected with fixed plates. The lower surfaces of the two groups of fixed plates are provided with support plates, and the positions of the lower surfaces of the two groups of support plates are respectively kept parallel to the lower surface of the adjacent group of support inclined plates.

[0013] Furthermore, the inner walls on both sides of the security door body are provided with slots, and the two groups of slots in the security door body are slidably connected with limit plates, and the adjacent sides of the two groups of limit plates are respectively installed on the left and right sides of the U-shaped fixed plate.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model starts a motor to drive the fixed disc and the top plate to rotate, so that during the rotation of the top plate, the inspector is driven to rotate on one side of the metal detector, so that the inspector can perform full-body inspection without rotating when standing on one side of the metal detector, thereby reducing the labor and time consumed by subsequent inspectors in the process of using the device for inspection, thereby improving the practicality of the device; when the top plate is in use, the U-shaped fixed plate is pushed downward by starting two groups of hydraulic cylinders, and the lower surface of the U-shaped fixed plate is abutted against the ground, so that the U-shaped fixed plate and the two groups of hydraulic cylinders support the connecting plate, thereby minimizing bending of the upper end of the subsequent connecting plate when the load-bearing mass is too large, thereby improving the service life of the driving mechanism.

[0016] 2. The utility model arranges the two sets of guardrails 1 on the left and right sides of the upper end of the top plate respectively, so that when the subsequent inspection personnel stand on the upper surface of the top plate, the arms on the left and right sides can be supported on the upper ends of the two sets of guardrails 1, thereby minimizing the shaking of the inspection personnel in the process of the subsequent top plate driving the inspection personnel to rotate, thereby improving the stability and safety of the subsequent inspection personnel standing on the upper end of the top plate; by rotating guardrail 2, the back side of guardrail 2 is abutted against the front side of the contact switch, so that the contact switch triggers the starting motor to drive the top plate to rotate, and then when the subsequent inspection personnel have not completely stood on the upper end of the top plate, the staff cannot start the motor to drive the top plate to rotate, thereby improving the safety of the subsequent staff when using the driving mechanism to drive the inspection personnel to rotate on one side of the metal detector, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front structural schematic diagram of the utility model;

[0018] Figure 2 It is a side structural schematic diagram of the utility model;

[0019] Figure 3 It is a front structural schematic diagram of the motor of the utility model;

[0020] Figure 4 It is a front structural schematic diagram of the fixed disc of the utility model;

[0021] Figure 5 This utility model Figure 1 Enlarged view of point A in the middle.

[0022] Figure numerals: 1. Security door body; 2. Driving mechanism; 201. Connecting plate; 202. U-shaped fixing plate; 203. Motor; 204. Top plate; 205. Fixing disc; 206. Positioning block; 207. Hydraulic cylinder; 3. Support mechanism; 301. Support inclined plate; 302. Fixing plate; 303. Support plate; 4. Protection mechanism; 401. Guardrail 1; 402. Guardrail 2; 403. Hinge; 404. Contact switch; 5. Limiting plate; 6. Positioning mechanism; 601. L-shaped fixing rod; 602. U-shaped block; 603. Fixing block; 604. Insert rod; 7. Metal detector. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figures 1 to 5 As shown, a light alarm device for a security door comprises a security door body 1, wherein the interior of the security door body 1 comprises a metal detector 7, a driving mechanism 2 for driving an inspector to rotate on one side of the metal detector 7 is arranged between the left and right inner walls of the security door body 1, and a card slot is provided on both the front and rear sides of the driving mechanism 2, and a supporting mechanism 3 is installed inside the two groups of card slots of the driving mechanism 2, and a protective mechanism 4 is arranged on the upper surface of the driving mechanism 2, and a positioning mechanism 6 is arranged on the side of the protective mechanism 4 away from the metal detector 7; specifically, by starting the driving mechanism 2 to drive the inspector to rotate on one side of the metal detector 7, the inspector can perform a full-body inspection without rotating when standing on one side of the metal detector 7, thereby reducing the labor and time consumed by subsequent inspectors in the process of using the device for inspection, thereby improving the practicality of the device.

[0028] like Figures 1 to 4 As shown, the driving mechanism 2 includes a connecting plate 201 and a U-shaped fixed plate 202. A groove is provided on the upper surface of the connecting plate 201. The connecting plate 201 is installed between the inner walls on the left and right sides of the security door body 1. A fixed disc 205 is rotatably connected inside the groove of the connecting plate 201. A top plate 204 is installed on the upper surface of the fixed disc 205. Two groups of hydraulic cylinders 207 are provided on the lower surface of the connecting plate 201. Through holes are provided on the upper surfaces of the left and right sides of the U-shaped fixed plate 202. The output ends of the two groups of hydraulic cylinders 207 are installed at the bottom of the inner wall of the two groups of through holes of the U-shaped fixed plate 202. A motor 203 is provided at the bottom of the inner wall of the U-shaped fixed plate 202. A positioning block 206 is installed on the output shaft of the motor 203. A card slot is provided on the lower surface of the fixed disc 205. The position of the card slot of the fixed disc 205 is located on the moving path of the positioning block 206. The position of the top plate 204 is located on one side of the metal detector 7.

[0029] Specifically, when the subsequent inspection personnel stand on the upper surface of the top plate 204, the fixed disc 205 and the top plate 204 are driven to rotate by starting the motor 203, so that the top plate 204 is driven to rotate on one side of the metal detector 7 during the rotation, so that the inspection personnel can perform full-body inspection without rotating when standing on one side of the metal detector 7, thereby reducing the labor and time consumed by the subsequent inspection personnel in the process of using the device for inspection, thereby improving the practicality of the device; when the top plate 204 is in use, the U-shaped fixed plate 202 is pushed downward by starting the two groups of hydraulic cylinders 207, and the lower surface of the U-shaped fixed plate 202 is abutted against the ground, so that the U-shaped fixed plate 202 and the two groups of hydraulic cylinders 207 support the connecting plate 201, thereby minimizing bending when the upper end of the subsequent connecting plate 201 bears too much weight, thereby improving the service life of the driving mechanism 2.

[0030] At the same time, when subsequent staff members are transporting and moving the device, they start the two groups of hydraulic cylinders 207 to drive the U-shaped fixing plate 202 to move, and make the upper surface of the U-shaped fixing plate 202 fit against the lower surface of the connecting plate 201, so that the height of the U-shaped fixing plate 202 can be adjusted and moved when it is idle, thereby minimizing the collision between the U-shaped fixing plate 202 and foreign objects on the ground when subsequent staff members are transporting and moving the device; the position of the motor 203 is set inside the U-shaped fixing plate 202, so that the U-shaped fixing plate 202 limits the moving path of the motor 203, thereby minimizing the collision between the motor 203 and foreign objects on the ground when subsequent staff members are pulling the device to move, thereby minimizing the damage to the motor 203.

[0031] like Figures 1 to 3 As shown, the protection mechanism 4 includes two groups of protection fences 1 401 and hinges 403. The two groups of protection fences 1 401 are installed on the upper surface of the top plate 204. The left group of protection fences 1 401 is hinged with the protection fence 2 402 through the hinge 403. The front of the right group of protection fences 1 401 is provided with a card slot. The card slot of the right group of protection fences 1 401 is provided with a contact switch 404. The contact switch 404 is located on the rotation path of the protection fence 2 402. The contact switch 404 is electrically connected to the control end of the motor 203.

[0032] Specifically, when the subsequent inspection personnel stand on the upper surface of the top plate 204, the positions of the two sets of guardrails 401 are respectively set on the left and right sides of the upper end of the top plate 204, so that when the subsequent inspection personnel stand on the upper surface of the top plate 204, the left and right arms can be supported on the upper ends of the two sets of guardrails 401, thereby minimizing the shaking of the inspection personnel in the process of the subsequent top plate 204 driving the inspection personnel to rotate, thereby improving the stability and safety of the subsequent inspection personnel standing on the upper end of the top plate 204; by rotating the guardrail 202, the back side of the guardrail 202 is abutted against the front side of the contact switch 404, so that the contact switch 404 triggers the starting motor 203 to drive the top plate 204 to rotate, and then when the subsequent inspection personnel do not completely stand on the upper end of the top plate 204, the staff cannot start the motor 203 to drive the top plate 204 to rotate, thereby improving the safety of the subsequent staff when using the driving mechanism 2 to drive the inspection personnel to rotate on one side of the metal detector 7, thereby improving the practicality of the device.

[0033] like Figure 5 As shown, the positioning mechanism 6 includes an L-shaped fixing rod 601 and a U-shaped clamping block 602. The U-shaped clamping block 602 is installed on the side of the right side group of guardrails 401 away from the metal detector 7. The L-shaped fixing rod 601 is installed on the side of the guardrail 402 away from the metal detector 7. The position of the inner groove of the U-shaped clamping block 602 is located on the rotation path of the L-shaped fixing rod 601. A fixing block 603 is arranged inside the groove of the U-shaped clamping block 602. The fixing block 603 and the side of the L-shaped fixing rod 601 away from the metal detector 7 are both provided with through holes. The fixing block 603 and the L-shaped fixing rod 60 1 is inserted with an insertion rod 604; specifically, the L-shaped fixing rod 601 is clamped in the groove of the U-shaped clamping block 602 by rotating the guardrail 2 402, and then the insertion rod 604 is pushed to insert the insertion rod 604 into the through holes of the fixing block 603 and the L-shaped fixing rod 601, so that the positioning mechanism 6 limits the position of the guardrail 2 402 in front of the two groups of guardrails 1 401, thereby avoiding the position of the guardrail 2 402 from being offset during the subsequent rotation of the protection mechanism 4, thereby improving the stability of the guardrail 2 402 during use.

[0034] like Figures 1 to 3 As shown, the two groups of support mechanisms 3 both include support inclined plates 301, and the front and rear sides of the connecting plate 201 are provided with card slots. The two groups of support inclined plates 301 are respectively carded in the two groups of card slots of the connecting plate 201, and the lower surfaces of the two groups of support inclined plates 301 are both in contact with the ground. The lower end inclined surfaces of the two groups of support inclined plates 301 are provided with card slots, and the card slots of the two groups of support inclined plates 301 are both slidably connected with fixed plates 302. The lower surfaces of the two groups of fixed plates 302 are both provided with support plates 303, and the positions of the lower surfaces of the two groups of support plates 303 are respectively kept parallel to the lower surfaces of the adjacent groups of support inclined plates 301.

[0035] Specifically, the positions of the two groups of supporting inclined plates 301 are respectively set on the front and rear sides of the top plate 204, so that the subsequent inspection personnel can walk to the upper surface of the top plate 204 through the two groups of supporting inclined plates 301 when standing on the upper surface of the top plate 204, thereby minimizing the possibility that the subsequent inspection personnel fail to pay attention to their feet during walking and are tripped by the connecting plate 201, thereby improving the safety of the device during use; the lower surfaces of the two groups of supporting plates 303 are abutted against the ground, so that the adjacent side of the subsequent two groups of supporting inclined plates 301 and the two groups of card slots of the connecting plate 201 are not easy to tip over when the connection is disconnected, thereby improving the stability and safety of the subsequent inspection personnel when walking on the upper surface of the two groups of supporting inclined plates 301; the two groups of supporting inclined plates 301 are driven to move out of the two groups of card slots of the connecting plate 201 by pulling the two groups of supporting inclined plates 301, so that the two groups of supporting mechanisms 3 can be disassembled during use, thereby facilitating the subsequent staff to replace or maintain the two groups of supporting mechanisms 3.

[0036] like Figure 3 As shown, the left and right inner walls of the security door body 1 are provided with slots, and the two groups of slots of the security door body 1 are slidably connected with the limit plates 5, and the adjacent sides of the two groups of limit plates 5 are respectively installed on the left and right sides of the U-shaped fixed plate 202; specifically, the opposite ends of the two groups of limit plates 5 are slidably connected to the two groups of slots of the security door body 1, so that the subsequent U-shaped fixed plate 202 can synchronously drive the two groups of limit plates 5 to slide during the up and down movement, and then the two groups of limit plates 5 limit the movement path of the U-shaped fixed plate 202, so as to avoid the subsequent U-shaped fixed plate 202 from deviating during the movement, which may cause the output shaft of the motor 203 or the two groups of fixed discs 205 to bend, thereby improving the service life of the driving mechanism 2.

[0037] In summary: by starting the motor 203 to drive the fixed disc 205 and the top plate 204 to rotate, the top plate 204 is driven to rotate on one side of the metal detector 7 during the rotation, so that the inspector can perform full-body inspection without rotating when standing on one side of the metal detector 7, thereby reducing the labor and time consumed by subsequent inspectors in the process of using the device for inspection; by starting the two sets of hydraulic cylinders 207 to push the U-shaped fixed plate 202 downward, the lower surface of the U-shaped fixed plate 202 is abutted against the ground On the upper side, the U-shaped fixing plate 202 and the two groups of hydraulic cylinders 207 support the connecting plate 201, thereby avoiding bending when the upper end of the connecting plate 201 bears too much weight in the future; by starting the two groups of hydraulic cylinders 207 to drive the U-shaped fixing plate 202 to move, the upper surface of the U-shaped fixing plate 202 is fitted against the lower surface of the connecting plate 201, so that the height of the U-shaped fixing plate 202 can be adjusted and moved when it is idle, thereby avoiding collision between the U-shaped fixing plate 202 and foreign objects on the ground when the subsequent staff transport and move the device.

[0038] At the same time, by setting the positions of the two groups of guardrails 401 on the left and right sides of the upper end of the top plate 204 respectively, the subsequent inspection personnel can support their left and right arms on the upper ends of the two groups of guardrails 401 when standing on the upper surface of the top plate 204, thereby minimizing the shaking of the inspection personnel during the subsequent rotation of the top plate 204 driven by the inspection personnel; by rotating the guardrail 2 402 to make the back side of the guardrail 2 402 abut against the front side of the contact switch 404, the contact switch 404 triggers the start motor 203 to drive the top plate 204 to rotate, so that when the subsequent inspection personnel have not completely stood on the upper end of the top plate 204, the staff cannot start the motor 203 to drive the top plate 204 to rotate, thereby improving the safety of the subsequent staff when using the driving mechanism 2 to drive the inspection personnel to rotate on one side of the metal detector 7.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A light alarm device for a security door, comprising a security door body (1), characterized in that: The security door body (1) includes a metal detector (7) inside, and a driving mechanism (2) is arranged between the left and right inner walls of the security door body (1) to drive the inspector to rotate on one side of the metal detector (7). The front and rear sides of the driving mechanism (2) are provided with card slots, and the two groups of card slots of the driving mechanism (2) are internally installed with a supporting mechanism (3). The upper surface of the driving mechanism (2) is provided with a protective mechanism (4), and the side of the protective mechanism (4) away from the metal detector (7) is provided with a positioning mechanism (6).

2. The light alarm device for a security door according to claim 1, characterized in that: The driving mechanism (2) comprises a connecting plate (201) and a U-shaped fixing plate (202), the upper surface of the connecting plate (201) being provided with a groove, the connecting plate (201) being installed between the left and right inner walls of the security door body (1), a fixing disc (205) being rotatably connected inside the groove of the connecting plate (201), a top plate (204) being installed on the upper surface of the fixing disc (205), two groups of hydraulic cylinders (207) being arranged on the lower surface of the connecting plate (201), and the left and right upper surfaces of the U-shaped fixing plate (202) being provided with a fixing disc (205) being provided with a fixing disc (206). Through holes are provided on the surface, the output ends of the two groups of hydraulic cylinders (207) are installed at the bottom of the inner wall of the two groups of through holes of the U-shaped fixing plate (202), a motor (203) is provided at the bottom of the inner wall of the U-shaped fixing plate (202), a positioning block (206) is installed on the output shaft of the motor (203), a slot is provided on the lower surface of the fixing disc (205), the position of the slot of the fixing disc (205) is located on the moving path of the positioning block (206), and the position of the top plate (204) is located on one side of the metal detector (7).

3. The light alarm device for a security door according to claim 2, characterized in that: The protection mechanism (4) comprises two groups of protection fences (401) and hinges (403). The two groups of protection fences (401) are installed on the upper surface of the top plate (204). The left group of protection fences (401) is hinged to protection fences (402) through the hinges (403). The front of the right group of protection fences (401) is provided with a slot. A contact switch (404) is arranged inside the slot of the right group of protection fences (401). The contact switch (404) is located on the rotation path of the protection fences (402). The contact switch (404) is electrically connected to the control end of the motor (203).

4. The light alarm device for a security door according to claim 3 is characterized in that: The positioning mechanism (6) comprises an L-shaped fixing rod (601) and a U-shaped clamping block (602). The U-shaped clamping block (602) is mounted on a side of the right side group of the guardrail 1 (401) away from the metal detector (7). The L-shaped fixing rod (601) is mounted on a side of the guardrail 2 (402) away from the metal detector (7). The position of the internal groove of the U-shaped clamping block (602) is located on the rotation path of the L-shaped fixing rod (601). A fixing block (603) is arranged inside the groove of the U-shaped clamping block (602). Through holes are provided on the sides of the fixing block (603) and the L-shaped fixing rod (601) away from the metal detector (7). Insertion rods (604) are inserted into the through holes of the fixing block (603) and the L-shaped fixing rod (601).

5. The light alarm device for a security door according to claim 2, characterized in that: The two groups of support mechanisms (3) each comprise a support inclined plate (301), the front and rear sides of the connecting plate (201) are provided with a card slot, the two groups of support inclined plates (301) are respectively carded inside the two groups of card slots of the connecting plate (201), the lower surfaces of the two groups of support inclined plates (301) are both in contact with the ground, the lower end inclined surfaces of the two groups of support inclined plates (301) are provided with a card slot, the card slots of the two groups of support inclined plates (301) are both slidably connected with a fixing plate (302), the lower surfaces of the two groups of fixing plates (302) are both provided with a support plate (303), and the positions of the lower surfaces of the two groups of support plates (303) are respectively kept parallel to the lower surface of the adjacent group of support inclined plates (301).

6. The light alarm device for a security door according to claim 2, characterized in that: The inner walls on the left and right sides of the main body (1) of the security door are provided with card slots, and the insides of the two groups of card slots of the main body (1) of the security door are slidably connected with limit plates (5), and the adjacent sides of the two groups of limit plates (5) are respectively installed on the left and right sides of the U-shaped fixing plate (202).

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