Fire detection device

Abstract

The utility model provides a fire detection device which comprises an infrared detector, a detachable rear cover is installed on the back face of the infrared detector, an L-shaped plate is fixedly connected to the face, away from the infrared detector, of the rear cover, the vertical portion of the L-shaped plate is inserted into a socket, the socket is formed in the upper surface of a supporting arm plate, and the supporting arm plate is fixedly connected with the rear cover. The end, away from the rear cover, of the supporting arm plate is fixedly connected with a bottom plate, a plurality of evenly-formed fixing holes are formed in one side face of the bottom plate, a vertically-arranged column rod is installed on the lower surface of the horizontal portion of the L-shaped plate, the lower end of the column rod is fixedly connected with a threaded head, and the threaded head is in threaded connection with the interior of the threaded blind hole. The threaded blind hole is formed in the upper surface of the lifting rod, the column rod is sleeved with a shielding piece used for hiding the threaded head, and the infrared detector maintenance device has the advantages that a worker does not need to climb up and down to maintain an infrared detector, and safety is improved.

Description

Technical Field

[0001] The utility model relates to a fire detection device, belonging to the technical field of fire detection. Background Art

[0002] Infrared detectors are commonly used equipment for fire detection. Infrared detectors are generally fixed to walls or other high places with bolts. Dust and other attachments on the infrared detector lenses need to be cleaned from time to time and the batteries inside the infrared detectors need to be replaced to prevent dust and other attachments or insufficient power from affecting the use of infrared detectors. Since infrared detectors are installed at a high height, personnel need to use tools such as ladders to climb up and down to operate them. Climbing up and down poses a great safety hazard, so it is necessary to design a fire detection device that does not require personnel to climb up and down to inspect and repair infrared detectors. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a fire detection device to solve the problems raised in the above-mentioned background technology. The utility model does not require personnel to climb up and down to inspect and repair the infrared detector, thereby improving safety.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a fire detection device, including an infrared detector, a detachable back cover is installed on the back of the infrared detector, an L-shaped plate is connected and fixed to the side of the back cover facing away from the infrared detector, the vertical part of the L-shaped plate is inserted in the socket, the socket is opened on the upper surface of the support arm plate, the end of the support arm plate away from the back cover is connected and fixed to the base plate, a side surface of the base plate is opened with a plurality of evenly arranged fixing holes, a vertically arranged column rod is installed on the lower surface of the horizontal part of the L-shaped plate, a threaded head is connected and fixed to the lower end of the column rod, the threaded head is threadedly connected in the threaded blind hole, the threaded blind hole is opened on the upper surface of the lifting rod, and a shielding member for hiding the threaded head is sleeved on the column rod.

[0005] Furthermore, two parallel side surfaces in the socket are both pasted with rubber sheets, and the rubber sheets are in contact with the vertical portion of the L-shaped plate.

[0006] Furthermore, the shielding member includes a shielding tube, the shielding tube is sleeved on the column rod, the lower end of the column rod is sleeved with a limiting ring connected and fixed to the column rod, the limiting ring is slidably installed in the shielding tube, the shielding tube is sleeved on the lifting rod, a rubber disk is connected and fixed at the lower position of the shielding tube, and a plurality of strip slits are equidistantly opened in a circular shape at the middle position of the lower surface of the rubber disk.

[0007] Furthermore, a lug is connected and fixed to the outer surface of the upper end of the shielding tube, a vertically arranged spring is installed on the upper surface of the lug, and the upper end of the spring is connected and fixed to the horizontal part of the L-shaped plate.

[0008] Furthermore, two ends of the spring extend into two positioning sleeves respectively, and the two positioning sleeves are respectively connected and fixed to the support ears and the horizontal part of the L-shaped plate.

[0009] Furthermore, the bottom plate and the arm plate are arranged perpendicular to each other, and the bottom plate and the arm plate are an integrally formed structure.

[0010] Furthermore, a rubber sleeve is sleeved on the lower end of the lifting rod, and the lower end of the rubber sleeve is closed.

[0011] Beneficial effects of the utility model:

[0012] 1. After installing the support arm plate on the high area of ​​the wall with bolts, insert the vertical part of the L-shaped plate into the socket to realize the connection between the L-shaped plate and the support arm plate, that is, the infrared detector with a built-in battery is plugged into the wall. When the infrared detector needs to be cleaned or repaired, align the threaded blind hole on the lifting rod with the threaded head, twist the lifting rod, and make the threaded head threaded in the threaded blind hole to complete the assembly of the lifting rod and the L-shaped plate. Use the lifting rod to push the L-shaped plate upward to make the vertical part of the L-shaped plate out of the socket, so as to facilitate the removal of the infrared detector from a high place without the need to climb up and down with the help of ladders and other tools, thereby improving safety.

[0013] 2. After the infrared detector is overhauled, screw the threaded head into the threaded blind hole again, use the lifting rod to insert the vertical part of the L-shaped plate into the socket, and then rotate the lifting rod to disengage the threaded head from the threaded blind hole. Under the weight of the shielding tube, move the shielding tube downward until the shielding tube contacts the limit ring. At this time, the threaded head is hidden in the closed space formed by the shielding tube and the rubber disc, which prevents dust in the environment from arbitrarily adhering to the threaded head and affecting the threaded connection between the threaded head and the threaded blind hole. Multiple strip seams are processed on the rubber disc, and then when the lifting rod presses the rubber disc, the strip seams are opened, thereby not affecting the lifting rod from entering and exiting the shielding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a structural schematic diagram of a fire detection device of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the assembly of a bottom plate, a rubber sheet and an arm plate in a fire detection device of the utility model;

[0018] Figure 4This is a schematic diagram of the assembly of a shielding tube, a threaded head and a column rod in a fire detection device of the utility model;

[0019] Figure 5 It is a cross-sectional view of a lifting rod in a fire detection device of the utility model;

[0020] Figure 6 This is a bottom view of a rubber disc in a fire detection device of the utility model;

[0021] In the figure: 1-infrared detector, 2-back cover, 3-column, 4-L-shaped plate, 5-support arm plate, 6-bottom plate, 7-shielding tube, 8-lifting rod, 9-support ear, 10-positioning sleeve, 11-spring, 12-socket, 13-rubber sheet, 14-limiting ring, 15-threaded head, 16-rubber disc, 17-threaded blind hole, 18-strip seam, 19-rubber sleeve. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figure 1 The utility model provides a technical solution: a fire detection device, including an infrared detector 1, a detachable back cover 2 is installed on the back of the infrared detector 1, and the back cover 2 realizes the blocking of the back of the infrared detector 1. The application principle of the infrared detector 1 in fire detection and its internal structure have been fully disclosed in the prior art, so they are not repeated here.

[0024] See also Figure 1 and Figure 3 An L-shaped plate 4 is connected and fixed to the side of the back cover 2 facing away from the infrared detector 1. The vertical portion of the L-shaped plate 4 is inserted into the socket 12. The socket 12 is opened on the upper surface of the support arm plate 5. Rubber sheets 13 are pasted on two parallel side surfaces in the socket 12. After the vertical portion of the L-shaped plate 4 is inserted into the socket 12, the rubber sheet 13 fits with the vertical portion of the L-shaped plate 4, thereby increasing the friction coefficient between the vertical portion of the L-shaped plate 4 and the inner wall of the socket 12.

[0025] See also Figure 1 , Figure 3 , Figure 4 and Figure 5The end of the arm plate 5 away from the rear cover 2 is connected and fixed with a bottom plate 6, and a side surface of the bottom plate 6 is provided with a plurality of evenly arranged fixing holes, wherein the bottom plate 6 and the arm plate 5 are arranged perpendicular to each other and the bottom plate 6 and the arm plate 5 are an integrally formed structure. After the bottom plate 6 is installed at a height such as a wall by bolts, the position of the arm plate 5 is restricted. A vertically arranged column 3 is installed on the lower surface of the horizontal portion of the L-shaped plate 4. A threaded head 15 is connected and fixed to the lower end of the column 3. The threaded head 15 is threadedly connected in a threaded blind hole 17. The threaded blind hole 17 is provided on the upper surface of the lifting rod 8. The lower end of the lifting rod 8 is provided with a rubber sleeve 19 with a closed lower end. The arm plate 5 is installed on the lower surface of the lifting rod 8 by bolts. After reaching the high area of ​​the wall, the vertical part of the L-shaped plate 4 is inserted into the socket 12 to realize the connection between the L-shaped plate 4 and the support arm plate 5, that is, the infrared detector 1 with a built-in battery is plugged into the wall. When the infrared detector 1 needs to be cleaned or repaired, the threaded blind hole 17 on the lifting rod 8 is aligned with the threaded head 15, and the lifting rod 8 is twisted to make the threaded head 15 threadedly connected in the threaded blind hole 17 to complete the assembly of the lifting rod 8 and the L-shaped plate 4. The lifting rod 8 is used to push the L-shaped plate 4 upward to make the vertical part of the L-shaped plate 4 disengage from the socket 12, so as to facilitate the removal of the infrared detector 1 from a high place without the need to climb up and down with the help of tools such as ladders, thereby improving safety.

[0026] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 , a shielding tube 7 is sleeved on the column 3, a limiting ring 14 connected and fixed to the column 3 is sleeved on the lower end of the column 3, the limiting ring 14 is slidably installed in the shielding tube 7, the shielding tube 7 is sleeved on the lifting rod 8, a rubber disc 16 is connected and fixed at the lower position of the shielding tube 7, and a plurality of strip slits 18 are equidistantly provided in the middle position of the lower surface of the rubber disc 16 in a circular shape. When the infrared detector 1 is overhauled, the threaded head 15 is screwed into the threaded blind hole 17 again, and the vertical part of the L-shaped plate 4 is inserted into the socket 12 by using the lifting rod 8, and then the lifting rod 8 is rotated, The threaded head 15 is disengaged from the threaded blind hole 17, and under the weight of the shielding tube 7, the shielding tube 7 moves downward until the shielding tube 7 contacts the limiting ring 14. At this time, the threaded head 15 is hidden in the closed space formed by the shielding tube 7 and the rubber disc 16, which prevents dust in the environment from arbitrarily adhering to the threaded head 15 and affecting the threaded connection between the threaded head 15 and the threaded blind hole 17. A plurality of strip slits 18 are processed on the rubber disc 16, and then when the lifting rod 8 presses the rubber disc 16, the strip slits 18 are opened, thereby not affecting the lifting rod 8 from entering and exiting the shielding tube 7.

[0027] See also Figure 1 and Figure 2A support ear 9 is connected and fixed to the outer surface of the upper end of the shielding tube 7, and a vertically arranged spring 11 is installed on the upper surface of the support ear 9. The upper end of the spring 11 is connected and fixed to the horizontal part of the L-shaped plate 4. The two ends of the spring 11 extend into two positioning sleeves 10 respectively. The two positioning sleeves 10 are respectively connected and fixed to the support ear 9 and the horizontal part of the L-shaped plate 4. The positioning sleeves 10 improve the stability of the installation of the spring 11. Under the action of the rebound force of the spring 11, the shielding tube 7 tends to move downward, so that the shielding tube 7 can smoothly shield the threaded head 15.

[0028] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire detection device, comprising an infrared detector (1), characterized in that: A detachable back cover (2) is installed on the back of the infrared detector (1); an L-shaped plate (4) is connected and fixed to a side of the back cover (2) facing away from the infrared detector (1); a vertical portion of the L-shaped plate (4) is inserted into a socket (12); the socket (12) is provided on the upper surface of the arm plate (5); an end of the arm plate (5) away from the back cover (2) is connected and fixed to a base plate (6); a side surface of the base plate (6) is provided with a plurality of evenly arranged fixing holes; a vertically arranged column (3) is installed on the lower surface of the horizontal portion of the L-shaped plate (4); a threaded head (15) is connected and fixed to the lower end of the column (3); the threaded head (15) is threadedly connected to a threaded blind hole (17); the threaded blind hole (17) is provided on the upper surface of the lifting rod (8); a shielding member for hiding the threaded head (15) is sleeved on the column (3).

2. A fire detection device according to claim 1, characterized in that: Two parallel side surfaces in the socket (12) are both adhered with rubber sheets (13), and the rubber sheets (13) are in contact with the vertical portion of the L-shaped plate (4).

3. A fire detection device according to claim 1, characterized in that: The shielding member comprises a shielding cylinder (7), the shielding cylinder (7) is sleeved on the column (3), the lower end of the column (3) is sleeved with a limiting ring (14) connected and fixed to the column (3), the limiting ring (14) is slidably installed in the shielding cylinder (7), the shielding cylinder (7) is sleeved on the lifting rod (8), a rubber disc (16) is connected and fixed at the lower position of the shielding cylinder (7), and a plurality of strip slits (18) are equidistantly provided in a circular shape at the middle position of the lower surface of the rubber disc (16).

4. A fire detection device according to claim 3, characterized in that: A support ear (9) is connected and fixed to the outer surface of the upper end of the shielding tube (7), a vertically arranged spring (11) is installed on the upper surface of the support ear (9), and the upper end of the spring (11) is connected and fixed to the horizontal part of the L-shaped plate (4).

5. A fire detection device according to claim 4, characterized in that: The two ends of the spring (11) extend into two positioning sleeves (10) respectively, and the two positioning sleeves (10) are respectively connected and fixed to the support ears (9) and the horizontal part of the L-shaped plate (4).

6. A fire detection device according to claim 1, characterized in that: The bottom plate (6) and the support arm plate (5) are arranged perpendicular to each other, and the bottom plate (6) and the support arm plate (5) are an integrally formed structure.

7. A fire detection device according to claim 1, characterized in that: The lower end of the lifting rod (8) is sleeved with a rubber sleeve (19), and the lower end of the rubber sleeve (19) is in a closed shape.

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