A detection device for fire alarms

Abstract

This utility model relates to the field of detection device technology and discloses a detection device for a fire alarm, including a smoke storage box. A sealing cover is rotatably connected to the left side of the top of the smoke storage box. A support frame is fixedly installed at the top of the inner cavity of the smoke storage box. Magnets are fixedly installed at the right ends of both the sealing cover and the support frame. A steel wire rope is fixedly installed at the right end of the top of the sealing cover. By pulling the steel wire rope downwards, the sealing cover can be rotated upwards to open the top of the smoke storage box. The smoke storage box is then placed over the smoke alarm for detection. After detection, the steel wire rope is released. The compressed push spring, under its elastic force, moves the push rod upwards, pushing the extension block to rotate. This, in turn, causes the sealing cover to rotate in the opposite direction, sealing the smoke storage box and preventing smoke emission during movement. This reduces the use of smoke pellets and lowers detection costs.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and more specifically, to a detection device for a fire alarm. Background Technology

[0002] Smoke detectors are a common type of fire alarm, usually installed on the ceiling. When the indoor smoke concentration reaches the detection threshold, the smoke detector will sound an alarm to indicate the occurrence of a fire. To ensure that the installed smoke detectors can function properly, they need to be checked. Most existing detection devices use artificially generated smoke to trigger the smoke detectors, producing smoke by burning smoke pellets. However, once the smoke pellets are burning, they will continue to produce smoke until they are extinguished. Since each smoke detector is installed at a certain distance, and multiple smoke detectors are installed on each floor, most detection devices have their detection ports open during detection, allowing smoke to continuously escape. This results in most of the smoke generated by the smoke pellets being wasted on the movement path from one smoke detector to another, increasing detection costs. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a detection device for fire alarms, which has the advantage of reducing detection costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detection device for a fire alarm, comprising a smoke storage box, a sealing cover rotatably connected to the left side of the top of the smoke storage box, a support frame fixedly installed at the top of the inner cavity of the smoke storage box, magnets fixedly installed at the right ends of both the sealing cover and the support frame, a steel wire rope fixedly installed at the right end of the top of the sealing cover, a slide rail fixedly installed at the left end of the smoke storage box, a push rod slidably connected to the middle of the slide rail, an upward push spring fixedly installed at the bottom end of the push rod, and an extension block fixedly installed at the left end of the sealing cover.

[0005] As a preferred embodiment of this utility model, the magnets provided at the right ends of the sealing cover and the support frame are in contact with each other, and the magnetic poles of the contact surfaces of the magnets on the sealing cover and the support frame are opposite.

[0006] As a preferred embodiment of this utility model, the bottom end of the push spring is fixedly installed on the cigarette storage box, the push spring is located on the right side of the wire rope and the two are not in contact, and the push rod is located below the extension block.

[0007] As a preferred embodiment of this utility model, a lifting plate is slidably connected to the bottom end of the inner cavity of the cigarette storage box, a positioning rod is fixedly installed at the bottom end of the lifting plate, and a stud is rotatably connected to the bottom end of the lifting plate.

[0008] In a preferred embodiment of this utility model, the stud engages with the bottom end of the cigarette storage box, and the lifting plate is located below the support frame.

[0009] As a preferred embodiment of this utility model, a fixing tube is fixedly installed at the bottom of the cigarette storage box, an extension rod is engaged at the bottom of the fixing tube, and the bottom of the steel wire rope passes through the fixing tube and the extension rod and extends to the bottom of the extension rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model features a rotatable sealing cover. Before testing, the sealing cover is placed on top of the cigarette storage box, which is filled with smoke. When the top of the cigarette storage box is close to the smoke alarm, pulling down the steel wire rope causes the sealing cover to rotate upward and open the top of the cigarette storage box. The cigarette storage box is then placed over the smoke alarm for testing. After testing, the steel wire rope is released, and the compressed push spring, under its elasticity, moves the push rod upward and pushes the extension block to rotate. This causes the sealing cover to rotate in the opposite direction and close the cigarette storage box, preventing smoke from escaping during movement, thus reducing the use of smoke pellets and lowering testing costs.

[0012] 2. This utility model can move the lifting plate up and down by rotating the stud. After the test is completed, if the smoke cake is not completely burned, the lifting plate can be moved up to reduce the distance between the sealing cover and the lifting plate, thereby reducing the oxygen content in the space where the smoke cake exists. When the oxygen is consumed, the smoke cake will be extinguished for the next use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the cigarette storage box structure of this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a cross-sectional view of the extended rod of the present invention.

[0017] Figure 5 This utility model Figure 4 Enlarged diagram of point B in the middle.

[0018] In the diagram: 1. Cigarette box; 2. Sealing lid; 3. Support frame; 4. Magnet; 5. Steel wire rope; 6. Slide rail; 7. Push rod; 8. Push spring; 9. Extension block; 10. Lifting plate; 11. Positioning rod; 12. Stud; 13. Fixing tube; 14. Extension rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown, this utility model provides a detection device for a fire alarm, including a smoke box 1, a sealing cover 2 rotatably connected to the left side of the top of the smoke box 1, a support frame 3 fixedly installed at the top of the inner cavity of the smoke box 1, magnets 4 fixedly installed at the right ends of both the sealing cover 2 and the support frame 3, a steel wire rope 5 fixedly installed at the right end of the top of the sealing cover 2, a slide rail 6 fixedly installed at the left end of the smoke box 1, a push rod 7 slidably connected to the middle of the slide rail 6, an upward push spring 8 fixedly installed at the bottom end of the push rod 7, and an extension block 9 fixedly installed at the left end of the sealing cover 2.

[0021] Among them, the magnets 4 set at the right end of the sealing cover 2 and the support frame 3 are in contact with each other, and the magnetic poles of the contact surfaces of the magnets 4 on the sealing cover 2 and the support frame 3 are opposite.

[0022] By setting a magnet 4, after the sealing cover 2 is placed on the support frame 3, the sealing cover 2 and the magnet 4 on the support frame 3 will attract each other, so as to completely seal the top of the cigarette box 1 and prevent the sealing cover 2 from popping up due to shaking during the inspection personnel's movement.

[0023] The bottom end of the push spring 8 is fixedly installed on the cigarette storage box 1. The push spring 8 is located on the right side of the wire rope 5 and the two are not in contact. The push rod 7 is located below the extension block 9.

[0024] By setting the left side of the push spring 8, the elasticity of the push spring 8 can be used to push the push rod 7 upward after the steel wire rope 5 is released, thereby pushing the extension block 9 to rotate, so that the sealing cover 2 covers the cigarette storage box 1.

[0025] Among them, a lifting plate 10 is slidably connected to the bottom of the inner cavity of the cigarette storage box 1, a positioning rod 11 is fixedly installed at the bottom of the lifting plate 10, and a stud 12 is rotatably connected to the bottom of the lifting plate 10.

[0026] By rotating the stud 12, the stud 12 can drive the lifting plate 10 to move upward in the inner cavity of the cigarette storage box 1, thereby raising the position of the cigarette cake and reducing the storage space of the cigarette cake. The smaller the space, the lower the smoke content, and the faster the cigarette cake can be extinguished.

[0027] Among them, the stud 12 engages with the bottom end of the cigarette storage box 1, and the lifting plate 10 is located below the support frame 3.

[0028] By engaging the stud 12 with the smoke storage box 1, the lifting plate 10 can be moved up or down when the stud 12 is rotated, thereby changing the position of the smoke cake. The position of the smoke cake can also be adjusted before detection so that the smoke cake is closer to the smoke alarm, thus enabling rapid detection.

[0029] The bottom of the cigarette storage box 1 is fixedly installed with a fixing tube 13, and the bottom of the fixing tube 13 is engaged with an extension rod 14. The bottom of the wire rope 5 passes through the fixing tube 13 and the extension rod 14 and extends to the bottom of the extension rod 14.

[0030] The engagement connection between the extension rod 14 and the fixed tube 13 allows the extension rod 14 to be detached from the fixed tube 13 for easy storage. The bottom end of the extension rod 14 is also threaded, allowing multiple extension rods 14 to be spliced ​​together to achieve the effect of an extension device.

[0031] Working principle and usage process of this utility model:

[0032] When in use, first splice the ends of multiple extension rods 14 together, then screw the spliced ​​top end into the fixing tube 13 to install the device. Then pull down the steel wire rope 5 to open the sealing cover 2, place the lit smoke cake in the smoke storage box 1, then release the steel wire rope 5 to close the sealing cover 2. Then hold the extension rod 14 to raise the device. When the smoke storage box 1 is below the smoke alarm, pull down the steel wire rope 5 at the bottom of the extension rod 14.

[0033] The steel wire rope 5 drives the push rod 7 to descend, and at the same time the steel wire rope 5 opens the sealing cover 2 upwards, and then covers the smoke storage box 1 on the smoke alarm. The smoke generated by the smoke cake triggers the threshold of the smoke alarm. If the smoke alarm alarms normally, it means that the state is normal. Otherwise, if it does not alarm, it means that the smoke alarm cannot be used normally.

[0034] After the test is completed, the cigarette storage box 1 is lowered. When the cigarette storage box 1 is completely away from the smoke alarm, the steel wire rope 5 is released. At this time, the upward push spring 8, which is in a compressed state, pushes the push rod 7 upward under the action of elasticity, which in turn pushes the extension block 9 to rotate upward and cover the sealing cover 2 on the cigarette storage box 1. When the sealing cover 2 contacts the support frame 3, the magnets 4 installed on the two attract each other and close the sealing cover 2 on the cigarette storage box 1.

[0035] The device is then moved to the next smoke detector. During the movement, although the smoke pellet continues to burn, the smoke produced will remain in the smoke storage box 1, so there will be no waste of smoke.

[0036] Even after the smoke pellets have completely burned, there is still smoke in the smoke storage box 1. The next smoke pellet will not be lit until the smoke from the burning smoke has completely dissipated.

[0037] After all smoke detectors have finished detecting, if there are still unburned smoke cakes, rotating the stud 12 will move the lifting plate 10 upward, reducing the distance between the sealing cover 2 and the lifting plate 10. This reduces the oxygen content in the space where the smoke cake exists. Once the oxygen is consumed, the smoke cake will extinguish, making it ready for the next use.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for fire alarm, comprising a smoke storage box (1), characterized in that: A sealing cover (2) is rotatably connected to the left side of the top of the cigarette storage box (1). A support frame (3) is fixedly installed at the top of the inner cavity of the cigarette storage box (1). Magnets (4) are fixedly installed at the right ends of both the sealing cover (2) and the support frame (3). A steel wire rope (5) is fixedly installed at the right end of the top of the sealing cover (2). A slide rail (6) is fixedly installed at the left end of the cigarette storage box (1). A push rod (7) is slidably connected to the middle of the slide rail (6). An upward push spring (8) is fixedly installed at the bottom end of the push rod (7). An extension block (9) is fixedly installed at the left end of the sealing cover (2).

2. A fire alarm detector according to claim 1, characterised in that: The magnets (4) provided on the right end of the closed cover (2) and the support frame (3) are in contact with each other, and the magnetic poles of the contact surfaces of the magnets (4) on the closed cover (2) and the support frame (3) are opposite.

3. The fire alarm detector device of claim 1, wherein: The bottom end of the push spring (8) is fixedly installed on the cigarette storage box (1). The push spring (8) is located on the right side of the wire rope (5) and the two are not in contact. The push rod (7) is located below the extension block (9).

4. The fire alarm detector of claim 1, wherein: The bottom of the inner cavity of the cigarette storage box (1) is slidably connected to a lifting plate (10), and a positioning rod (11) is fixedly installed at the bottom of the lifting plate (10). A stud (12) is rotatably connected to the bottom of the lifting plate (10).

5. A fire alarm detector according to claim 4, wherein: The stud (12) engages with the bottom end of the cigarette storage box (1), and the lifting plate (10) is located below the support frame (3).

6. The fire alarm detector device of claim 1, wherein: The bottom end of the cigarette storage box (1) is fixedly installed with a fixing tube (13), and the bottom end of the fixing tube (13) is engaged with an extension rod (14). The bottom end of the wire rope (5) passes through the fixing tube (13) and the extension rod (14) and extends to the bottom of the extension rod (14).

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