Fire fighting access supervision equipment

Abstract

The utility model relates to a fire fighting access supervision equipment, including mounting rack, connecting part, camera and drive part, mounting rack is used for mounting on the top of enclosing wall, connecting part is arranged on mounting rack in the way of sliding along the arc track, the arc top of arc track is upward and is located right above enclosing wall, and the camera is arranged on the connecting part. The two ends of the arc-shaped track are located on the inner side and the outer side of the enclosing wall respectively, the camera is fixedly arranged on the connecting part, and the driving part is used for driving the connecting part to slide towards one end of the arc-shaped track and further used for driving the connecting part to slide towards the other end of the arc-shaped track. According to the fire fighting access monitoring equipment, only one camera is needed to monitor the fire fighting accesses on the inner side and the outer side of the enclosing wall alternately, and the purchase cost of the camera is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire monitoring equipment, in particular to a fire passage monitoring equipment. Background Art

[0002] Fire passages are life passages for firefighters to rescue and evacuate trapped people. They play an important role in quickly extinguishing fires, saving people's lives and property, and reducing fire losses. Fire passages are the only way for firefighters to rescue and evacuate trapped people. The smooth flow of fire passages is conducive to the rapid operation of various firefighting facilities and equipment, buying time for emergency rescue, and is directly related to the efficiency of rescue work. When planning some residential communities, special fire passages will be set up on the inside and outside of the community walls, and fire doors will be opened on the walls (such as Figure 1 As shown), it is used for fire trucks to quickly enter the community through fire passages and fire doors to carry out timely rescue when a fire occurs in the community.

[0003] The unobstructed fire passage is extremely important, but in daily life, there are always people who park their vehicles on the fire passage, blocking it. To solve this problem, the community property will install monitoring equipment, namely cameras, on both the inside and outside of the community wall to monitor the fire passages set up on the inside and outside of the community wall. When the community property finds that a vehicle occupies the fire passage through camera monitoring, it can go to the scene in time and notify the owner to move away to ensure the unobstructed fire passage. However, when it is necessary to monitor the fire passages inside and outside the wall, it is often necessary to install cameras on both the inside and outside of the community wall, which makes the procurement cost of the cameras high. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a fire passage monitoring device to solve the problem that when it is necessary to monitor the fire passages inside and outside the wall, it is often necessary to install cameras both inside and outside the community wall, which makes the purchase cost of the camera high.

[0005] The utility model is realized by the following technical solutions:

[0006] A fire passage monitoring device comprises a mounting frame, a connecting part, a camera and a driving part, wherein the mounting frame is used to be installed on the top of a wall, the connecting part is arranged on the mounting frame in a manner that it can slide along a circular arc track, the top of the circular arc track faces upward and is located directly above the wall, and the two ends of the circular arc track are respectively located on the inner and outer sides of the wall, the camera is fixed on the connecting part, the driving part is used to drive the connecting part to slide toward one end of the circular arc track, and the driving part is also used to drive the connecting part to slide toward the other end of the circular arc track.

[0007] It is further defined that the mounting frame includes a sliding rod and a fixing portion, the sliding rod is in an arc shape, the sliding rod is arranged along the arc track, the two ends of the sliding rod are respectively located at the inner and outer sides of the wall, and the fixing portion is used to fix the sliding rod to the wall;

[0008] The connecting part comprises a sliding sleeve, the sliding sleeve is slidably matched on the sliding rod, and the camera is fixedly connected to the sliding sleeve.

[0009] It is further defined that the fixing portion is used to detachably fix the sliding rod to the wall.

[0010] It is further defined that the fixing part includes a fixing plate, a threaded sleeve, a first locking bolt and a support rod, a through hole is formed on the fixing plate, the through hole penetrates the fixing plate along the thickness direction of the fixing plate, the threaded sleeve is used to be fixed to the wall, the first locking bolt cooperates with the through hole, and the screw-in end of the first locking bolt is used to be screwed into the threaded sleeve after passing through the through hole; one end of the support rod is fixedly connected to the side of the fixing plate facing away from the wall, and the other end is fixedly connected to the sliding rod.

[0011] It is further defined that the mounting frame also includes an arc-shaped plate, the circle where the arc-shaped plate is located is arranged concentrically with the circle where the sliding rod is located, the arc-shaped plate is located on the side of the sliding rod that is away from the center of the circle, the two ends of the arc-shaped plate are respectively located on the inner and outer sides of the wall, and strip holes are formed on the arc-shaped plate, the strip holes are arranged along the circumferential direction of the arc-shaped plate, and the strip holes pass through the inner and outer arc surfaces of the arc-shaped plate; the fixing portion is also used to fix the arc-shaped plate to the wall;

[0012] The connecting part also includes a first connecting block, one end of which is fixedly connected to the sliding sleeve and the other end of which passes through the strip hole. The first connecting block cooperates with the strip hole, and the camera is fixedly connected to the other end of the first connecting block.

[0013] It is further defined that the connecting portion further comprises a mounting block, the mounting block is fixedly connected to the other end of the first connecting block, the mounting block abuts against the outer arc surface of the arc plate, and the camera is fixedly connected to the mounting block;

[0014] The driving part includes a motor, a gear and a rack. The motor is fixedly connected to the mounting block. The gear is fixedly connected to the output shaft of the motor. The rack is fixedly arranged on the arc plate. The rack is in an arc shape. The rack is arranged along an arc edge of the arc plate. The rack is meshed with the gear.

[0015] It is further defined that the connecting part also includes a second connecting block, a connecting rod and a second locking bolt, the second connecting block is fixed on the mounting block, the side of the second connecting block facing away from the arc plate is recessed inward to form a connecting groove, one end of the connecting rod is inserted into the connecting groove, the one end of the connecting rod cooperates with the connecting groove, a screw hole is formed on the second connecting block, one end of the screw hole is connected to the connecting groove, and the other end is connected to the outer surface of the second connecting block, the second locking bolt is screwed into the screw hole, and the screwed-in end of the second locking bolt is used to support the connecting rod; the camera is fixed to the other end of the connecting rod.

[0016] It is further defined that the cross-sections of the connecting groove and the connecting rod are both regular polygons, and the number of sides of the cross-section of the connecting groove is the same as the number of sides of the cross-section of the connecting rod.

[0017] The beneficial effects of the utility model are:

[0018] When the fire passage monitoring device described in the utility model is used, only one camera needs to be set up to monitor the fire passages inside and outside the wall alternately, thereby reducing the purchase cost of the camera.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the application scenario of the fire passage monitoring device of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fire passage monitoring device of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the fire passage monitoring device of the utility model after being installed on the wall;

[0023] Figure 4 It is a cross-sectional view of the combined structure of the fire passage monitoring equipment and the enclosure of the utility model;

[0024] Figure 5 It is a schematic diagram of the disassembled state of the combined structure of the second connecting block, the connecting rod, the second locking bolt and the camera in the fire passage monitoring device of the utility model.

[0025] In the figure: 1. wall; 2. mounting frame; 201. sliding rod; 202. fixing part; 2021. fixing plate; 2022. threaded sleeve; 2023. first locking bolt; 2024. support rod; 203. arc plate; 2031. strip hole; 3. connecting part; 301. sliding sleeve; 302. first connecting block; 303. mounting block; 304. second connecting block; 3041. connecting groove; 305. connecting rod; 306. second locking bolt; 4. camera; 5. driving part; 501. motor; 502. gear; 503. rack; DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] 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.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0031] See also Figure 2-Figure 4 The utility model provides a technical solution: a fire passage monitoring device, including a mounting frame 2, a connecting part 3, a camera 4 and a driving part 5, wherein the mounting frame 2 is used to be installed on the top of the fence 1, and the connecting part 3 is arranged on the mounting frame 2 in a manner that it can slide along a circular arc track, the top of the circular arc track faces upward and is located directly above the fence 1, and the two ends of the circular arc track are respectively located on the inner and outer sides of the fence 1. Specifically, the inner and outer sides of the fence 1 are the side of the fence 1 facing the community and the side of the fence 1 facing the outside of the community. The camera 4 is fixed on the connecting part 3, and the driving part 5 is used to drive the connecting part 3 to slide toward one end of the circular arc track, and the driving part 5 is also used to drive the connecting part 3 to slide toward the other end of the circular arc track.

[0032] The fire passage monitoring device described in the utility model can be installed on the top of the wall 1 through the mounting frame 2, and the driving unit 5 can drive the camera 4 to slide along the arc track. During use of the fire passage monitoring device described in the utility model, the connecting part 3 can be driven by the driving part 5 to slide along the circular arc track toward one end of the circular arc track, and the one end of the circular arc track can be the end of the circular arc track located on the inner side of the fence 1. When the driving part 5 drives the connecting part 3 to slide along the circular arc track toward one end of the circular arc track, the camera 4 can be moved to the inner side of the fence 1 so that the camera 4 can monitor the inner side of the fence 1; the connecting part 3 can also be driven by the driving part 5 to slide toward the other end of the circular arc track, and the other end of the circular arc track can be the end of the circular arc track located on the outer side of the fence 1. When the driving part 5 drives the connecting part 3 to slide toward the other end of the circular arc track, the camera 4 can be moved to the outside of the fence 1 so that the camera 4 can monitor the outside of the fence 1. In this structure, only one camera 4 is required to monitor the fire passages inside and outside the wall 1 alternately, thereby reducing the purchase cost of the camera 4 .

[0033] In this embodiment, the mounting frame 2 includes a sliding rod 201 and a fixing portion 202. The sliding rod 201 is arc-shaped and is arranged along the arc-shaped trajectory. The two ends of the sliding rod 201 are respectively located on the inner and outer sides of the fence 1. The fixing portion 202 is used to fix the sliding rod 201 to the fence 1. In this embodiment, there are two fixing portions 202, and the two fixing portions 202 are respectively arranged at the two ends of the sliding rod 201. It can be understood that in other embodiments, the fixing portion 202 can also be one, and one fixing portion 202 is arranged at one end of the sliding rod 201.

[0034] The connecting portion 3 includes a sliding sleeve 301 , the sliding sleeve 301 is slidably matched on the sliding rod 201 , and the camera 4 is fixedly connected to the sliding sleeve 301 .

[0035] The connecting portion 3 is slidably matched with the sliding rod 201 through the sliding sleeve 301, and the connecting portion 3 can slide along the sliding rod 201. The sliding rod 201 can guide the sliding of the sliding sleeve 301, and the sliding rod 201 is arranged along the circular arc track, so that the sliding sleeve 301 can slide along the circular arc track. With this structure, the connecting portion 3 can be arranged on the mounting frame 2 in a manner of sliding along the circular arc track.

[0036] In this embodiment, the fixing portion 202 is used to detachably fix the sliding rod 201 to the surrounding wall 1 .

[0037] The sliding rod 201 is detachably connected to the fence 1 via the fixing portion 202, so that the sliding rod 201 can be easily removed from the fence 1, and the installation position of the sliding rod 201 on the fence 1 can be changed, thereby facilitating the change of the installation position of the camera 4 on the fence 1, and providing better flexibility of use.

[0038] In this embodiment, the fixing portion 202 includes a fixing plate 2021, a threaded sleeve 2022, a first locking bolt 2023 and a support rod 2024. A through hole is formed on the fixing plate 2021, and the through hole penetrates the fixing plate 2021 along the thickness direction of the fixing plate 2021. The threaded sleeve 2022 is used to be fixed to the wall 1. The first locking bolt 2023 cooperates with the through hole, and the screw-in end of the first locking bolt 2023 is used to be screwed into the threaded sleeve 2022 after passing through the through hole; one end of the support rod 2024 is fixedly connected to the side of the fixing plate 2021 facing away from the wall 1, and the other end is fixedly connected to the sliding rod 201.

[0039] When the fixing part 202 is fixed, a hole matching the threaded sleeve 2022 is first drilled on the fence 1, and then a reinforcing glue is applied to the outer surface of the threaded sleeve 2022, and then the threaded sleeve 2022 is inserted into the hole drilled on the fence 1. At this time, the threaded sleeve 2022 can be bonded and fixed to the hole drilled on the fence 1 by the reinforcing glue, and the threaded sleeve 2022 can be fixed to the fence 1. Then, the screw-in end of the first locking bolt 2023 is passed through the through hole and screwed into the threaded sleeve 2022, so that the fixing plate 2021 can be fixedly installed on the fence 1, so that the sliding rod 201 can be fixedly installed on the fence 1. The first locking bolt 2023 is screwed out of the threaded sleeve 2022, and the first locking bolt 2023 is pulled out of the through hole, so that the fixing plate 2021 and the enclosure 1 can be loosened, and the sliding rod 201 can be removed from the enclosure 1. With this structure, the fixing portion 202 can detachably fix the sliding rod 201 to the enclosure 1.

[0040] In this embodiment, there are four through holes on the fixing plate 2021, and the fixing part 202 also includes four threaded sleeves 2022, which correspond to the four through holes one by one, and the fixing part 202 also includes four first locking bolts 2023, which correspond to the four through holes one by one, and the four threaded sleeves 2022 are all fixed on the enclosure 1. The screw-in end of each first locking bolt 2023 passes through the corresponding threaded sleeve 2022 and is screwed into the corresponding threaded sleeve 2022. It can be understood that the number of through holes on the fixing plate 2021 can also be other numbers, and the number of threaded sleeves 2022 included in the fixing portion 202 can also be other numbers. It is only necessary to ensure that the number of threaded sleeves 2022 included in the fixing portion 202 is the same as the number of through holes on the fixing plate 2021 and corresponds one to one, and the number of first locking bolts 2023 included in the fixing portion 202 is the same as the number of through holes and corresponds one to one.

[0041] In this embodiment, the mounting frame 2 also includes an arc-shaped plate 203, and the circle where the arc-shaped plate 203 is located is arranged concentrically with the circle where the sliding rod 201 is located. The arc-shaped plate 203 is located on the side of the sliding rod 201 that is away from the center of the circle. The two ends of the arc-shaped plate 203 are respectively located on the inner and outer sides of the wall 1. The arc-shaped plate 203 is formed with a strip hole 2031, and the strip hole 2031 is arranged along the circumferential direction of the arc-shaped plate 203. The strip hole 2031 passes through the inner and outer arc surfaces of the arc-shaped plate 203; the fixing portion 202 is also used to fix the arc-shaped plate 203 to the wall 1. Specifically, the arc-shaped plate 203 is fixedly connected to the support rod 2024. After the fixing plate 2021 is fixedly connected to the wall 1, the fixing portion 202 can fix the arc-shaped plate 203 to the wall 1.

[0042] The connecting portion 3 also includes a first connecting block 302 , one end of which is fixedly connected to the sliding sleeve 301 , and the other end of which passes through the strip hole 2031 . The first connecting block 302 cooperates with the strip hole 2031 , and the camera 4 is fixedly connected to the other end of the first connecting block 302 .

[0043] The first connection block 302 is matched with the strip hole 2031, that is, the two side surfaces of the first connection block 302 corresponding to the two arc edges of the strip hole 2031 respectively abut against the two arc edges of the strip hole 2031, so that the first connection block 302 can only slide along the length direction of the strip hole 2031 and cannot deflect in other directions. The strip hole 2031 can guide the sliding of the first connection block 302, and further guide the sliding of the sliding sleeve 301 on the sliding rod 201, so that the sliding of the sliding sleeve 301 on the sliding rod 201 is more stable, and further the sliding of the connecting part 3 on the mounting frame 2 is more stable.

[0044] In this embodiment, the connecting portion 3 further includes a mounting block 303, the mounting block 303 is fixedly connected to the other end of the first connecting block 302, the mounting block 303 abuts against the outer arc surface of the arc plate 203, and the camera 4 is fixedly connected to the mounting block 303;

[0045] The driving unit 5 includes a motor 501, a gear 502 and a rack 503. The motor 501 can be a motor of model WS-38ZYT64-R. The motor 501 is fixedly connected to the mounting block 303. The gear 502 is fixedly connected to the output shaft of the motor 501. The rack 503 is fixedly arranged on the arc plate 203. The rack 503 is in an arc shape. The rack 503 is arranged along an arc edge of the arc plate 203. The rack 503 is meshed with the gear 502.

[0046] The motor 501 is started, and the motor 501 drives the gear 502 to rotate. Since the rack 503 is fixedly connected to the arc plate 203, the rack 503 and the gear 502 are meshed. When the gear 502 rotates, the gear 502 can roll on the rack 503. The combined structure of the motor 501, the mounting block 303, the first connecting block 302 and the sliding sleeve 301 can move under the driving action of the gear 502, so that the sliding sleeve 301 can slide along the circular arc trajectory on the sliding rod 201 toward one end of the circular arc trajectory. At this time, the driving unit 5 can drive the camera 4 to slide toward one end of the circular arc trajectory. By changing the rotation direction of the shaft of the motor 501, the rolling direction of the gear 502 along the rack 503 can be changed, and then the sliding direction of the sliding sleeve 301 along the circular arc trajectory on the sliding rod 201 can be changed. At this time, the driving unit 5 can drive the camera 4 to slide to the other end of the circular arc trajectory.

[0047] In this embodiment, the connecting part 3 also includes a second connecting block 304, a connecting rod 305 and a second locking bolt 306. The second connecting block 304 is fixed on the mounting block 303. The side of the second connecting block 304 facing away from the arc plate 203 is recessed inward to form a connecting groove 3041. One end of the connecting rod 305 is inserted into the connecting groove 3041. The one end of the connecting rod 305 cooperates with the connecting groove 3041. A screw hole is formed on the second connecting block 304. One end of the screw hole is connected to the connecting groove 3041, and the other end is connected to the outer surface of the second connecting block 304. The second locking bolt 306 is screwed into the screw hole. The screwed-in end of the second locking bolt 306 is used to support the connecting rod 305. The camera 4 is fixed to the other end of the connecting rod 305.

[0048] After inserting the one end of the connecting rod 305 into the connecting groove 3041, the second locking bolt 306 is rotated in the screw hole so that the screwed-in end of the second locking bolt 306 abuts against the connecting rod 305, and the connecting rod 305 can be fixed on the second connecting block 304. The second locking bolt 306 is rotated in the screw hole so that the screwed-in end of the second locking bolt 306 is disengaged from the connecting rod 305, and the connecting rod 305 can be pulled out of the connecting groove 3041, and the combined structure of the connecting rod 305 and the camera 4 can be removed from the second connecting block 304. After the camera 4 is damaged, it is convenient to remove the combined structure of the connecting rod 305 and the camera 4 from the connecting block for replacement, which is more convenient when the camera 4 is removed from the fence 1 for replacement.

[0049] In this embodiment, the cross-sections of the connecting groove 3041 and the connecting rod 305 are both regular polygons, and the number of sides of the cross-section of the connecting groove 3041 is the same as the number of sides of the cross-section of the connecting rod 305 .

[0050] See also Figure 5 When the connecting rod 305 is inserted into the connecting groove 3041, each side surface of the connecting rod 305 abuts against the inner wall of the connecting groove 3041, and the connecting rod 305 cannot rotate horizontally in the connecting groove 3041, thereby preventing the direction of the camera 4 from being accidentally deflected.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fire passage monitoring device, characterized in that: The invention comprises a mounting frame (2), a connecting portion (3), a camera (4) and a driving portion (5), wherein the mounting frame (2) is used for being mounted on the top of a wall (1), the connecting portion (3) is arranged on the mounting frame (2) in a manner that it can slide along a circular arc track, the top of the circular arc track faces upward and is located directly above the wall (1), and the two ends of the circular arc track are respectively located on the inner and outer sides of the wall (1), the camera (4) is fixed on the connecting portion (3), the driving portion (5) is used for driving the connecting portion (3) to slide toward one end of the circular arc track, and the driving portion (5) is also used for driving the connecting portion (3) to slide toward the other end of the circular arc track.

2. The fire passage monitoring device according to claim 1 is characterized in that: The mounting frame (2) comprises a sliding rod (201) and a fixing portion (202); the sliding rod (201) is in an arc shape and is arranged along the arc track; two ends of the sliding rod (201) are respectively located at the inner and outer sides of the enclosure (1); and the fixing portion (202) is used to fix the sliding rod (201) to the enclosure (1); The connecting portion (3) comprises a sliding sleeve (301), the sliding sleeve (301) is slidably fitted on the sliding rod (201), and the camera (4) is fixedly connected to the sliding sleeve (301).

3. The fire passage monitoring device according to claim 2 is characterized in that: The fixing portion (202) is used to detachably fix the sliding rod (201) to the surrounding wall (1).

4. The fire passage monitoring device according to claim 3 is characterized in that: The fixing portion (202) comprises a fixing plate (2021), a threaded sleeve (2022), a first locking bolt (2023) and a support rod (2024); a through hole is formed on the fixing plate (2021), and the through hole penetrates the fixing plate (2021) along the thickness direction of the fixing plate (2021); the threaded sleeve (2022) is used for fixing on the wall (1); the first locking bolt (2023) cooperates with the through hole; the screw-in end of the first locking bolt (2023) is used for screwing into the threaded sleeve (2022) after passing through the through hole; one end of the support rod (2024) is fixedly connected to the side of the fixing plate (2021) facing away from the wall (1), and the other end is fixedly connected to the sliding rod (201).

5. The fire passage monitoring device according to claim 2 is characterized in that: The mounting frame (2) further comprises an arc-shaped plate (203), wherein the circle where the arc-shaped plate (203) is located is arranged concentrically with the circle where the sliding rod (201) is located, the arc-shaped plate (203) is located on the side of the sliding rod (201) facing away from the center of the circle, the two ends of the arc-shaped plate (203) are respectively located on the inner and outer sides of the wall (1), and the arc-shaped plate (203) is formed with a strip hole (2031), the strip hole (2031) is arranged along the circumferential direction of the arc-shaped plate (203), and the strip hole (2031) passes through the inner and outer arc surfaces of the arc-shaped plate (203); the fixing portion is also used to fix the arc-shaped plate (203) to the wall; The connecting portion (3) further comprises a first connecting block (302), one end of the first connecting block (302) being fixedly connected to the sliding sleeve (301), and the other end of the first connecting block (302) passing through the strip hole (2031), the first connecting block (302) being matched with the strip hole (2031), and the camera (4) being fixedly connected to the other end of the first connecting block (302).

6. The fire passage monitoring device according to claim 5 is characterized in that: The connecting portion (3) further comprises a mounting block (303), wherein the mounting block (303) is fixedly connected to the other end of the first connecting block (302), the mounting block (303) abuts against the outer arc surface of the arc-shaped plate (203), and the camera (4) is fixedly connected to the mounting block (303); The driving part (5) comprises a motor (501), a gear (502) and a rack (503); the motor (501) is fixedly connected to the mounting block (303); the gear (502) is fixedly connected to the output shaft of the motor (501); the rack (503) is fixedly arranged on the arc plate (203); the rack (503) is in an arc shape; the rack (503) is arranged along an arc edge of the arc plate (203); and the rack (503) is meshed with the gear (502).

7. The fire passage monitoring device according to claim 6 is characterized in that: The connecting portion (3) further comprises a second connecting block (304), a connecting rod (305) and a second locking bolt (306); the second connecting block (304) is fixedly mounted on the mounting block (303); the side surface of the second connecting block (304) which faces away from the arc-shaped plate (203) is inwardly recessed to form a connecting groove (3041); one end of the connecting rod (305) is inserted into the connecting groove (3041); the one end of the connecting rod (305) is matched with the connecting groove (3041); a screw hole is formed on the second connecting block (304); one end of the screw hole is connected to the connecting groove (3041) and the other end is connected to the outer surface of the second connecting block (304); the second locking bolt (306) is screwed into the screw hole; the screwed-in end of the second locking bolt (306) is used to abut against the connecting rod (305); the camera (4) is fixedly mounted on the other end of the connecting rod (305).

8. The fire passage monitoring device according to claim 7 is characterized in that: The cross-sections of the connecting groove (3041) and the connecting rod (305) are both regular polygons, and the number of sides of the cross-section of the connecting groove (3041) is the same as the number of sides of the cross-section of the connecting rod (305).

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