Shell mounting structure of fire detector

Abstract

The utility model relates to the technical field of fire detectors, and discloses a shell mounting structure of a fire detector, which comprises a base, two sides of the top end of the base are fixedly connected with fixing blocks, the two fixing blocks are internally provided with cavities, the two cavities are internally provided with limiting grooves, and the limiting grooves are fixedly connected with the fixing blocks. The inner sides of the two fixing blocks are both provided with connecting shafts, one ends of the two connecting shafts are both fixedly connected with handles, the outer sides of the two connecting shafts are both provided with springs, one ends of the two springs are both fixedly connected with the fixing blocks, and the other ends of the two springs are both fixedly connected with limiting assemblies. According to the utility model, the push block fixed at the other end of the connecting shaft is driven by the handle to slide, and the push block is pushed by the spring, so that the shell and the base of the fire detector are firmly connected, and the problem that the base and the shell are not firmly connected due to magnetic force regression after a magnetic attraction piece is used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire detectors, in particular to a shell installation structure of a fire detector. Background Art

[0002] Fire detectors are devices used in fire alarm systems to detect fires on site. Fire detectors are the sensory organs of the system, and their function is to monitor whether there is a fire in the environment. Once there is a fire, the characteristic physical quantities of the fire, such as temperature, smoke, gas, and radiation intensity, are converted into electrical signals, and the fire alarm controller is immediately activated to send an alarm signal.

[0003] After searching, the Chinese patent announcement number: CN206696989U discloses a mounting structure of a fire detector, including a detachably connected upper shell and a base, the base fixedly covers the opening of the upper shell and forms a accommodating cavity, a first magnetic component is arranged at the connection between the base and the upper shell, a second magnetic component is arranged at the connection between the upper shell and the base, the first magnetic component and the second magnetic component attract each other; a sensor, a circuit board and a battery are arranged in the accommodating cavity; a sampling hole is arranged on the upper shell to connect the accommodating cavity with the outside. The upper shell and the base of the utility model are detachable, which is convenient for the inspection or replacement of components such as sensors, circuit boards and batteries in the accommodating cavity; the base and the upper shell are fixed as a whole by the mutual attraction between the first magnetic attraction member and the second magnetic attraction member, which makes disassembly and assembly convenient and quick, improves work efficiency, causes little damage to the base and the upper shell, and increases the service life of the base and the upper shell. However, the device adopts a connection method in which the magnetic attraction members are fixed as a whole by mutual attraction. After long-term operation, the magnetic force of the magnetic attraction members will fade, resulting in a decrease in the suction force of the magnetic attraction members, which makes the connection between the base and the upper shell loose. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a shell installation structure of a fire detector, which aims to improve the connection method in the prior art that uses magnetic suction parts to attract each other and be fixed as one. After a long period of operation, the magnetic force of the magnetic suction parts will fade, resulting in a decrease in the suction force of the magnetic suction parts, resulting in a loose connection between the base and the shell.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shell mounting structure of a fire detector, including a base, fixed blocks are fixedly connected to both sides of the top of the base, cavities are opened inside the two fixed blocks, and limiting grooves are opened on both sides of the top and bottom of the inner side walls of the two cavities, connecting shafts are arranged on the inner sides of the two fixed blocks, one end of the two connecting shafts passes through the inner side walls of the cavity and are fixedly connected to handles, springs are arranged on the outer sides of the two connecting shafts, one end of the two springs is fixedly connected to the fixed blocks, and the other ends of the two springs are fixedly connected to the limiting components, a protective shell is fixedly connected to the top of the base, a waterproof structure is arranged on the top of the protective shell, and a limiting component is arranged on the other ends of the two connecting shafts.

[0006] Through the above technical solution: through the cavity and limit groove opened inside the fixed block, the push block and the limit block can slide inside, and the inner wall of the fixed block and the push block are fixedly connected by the spring, so that the push block can be automatically reset and form an engagement with the protective shell.

[0007] As a further description of the above technical solution:

[0008] The waterproof structure includes a protective cover, the outer wall of the protective cover is provided with two ventilation holes, the bottom inner side of the protective cover is provided with a first groove, a sealing strip is arranged in the first groove, a hinge is fixedly connected to the rear end of the protective shell, the upper end of the hinge is fixedly connected to the protective cover, the bottom end of the protective cover is engaged with the top end of the protective shell, a second groove is provided on the top inner side of the protective shell, the sealing strip is slidably connected inside the second groove, and a fixing component is arranged at the front end of the protective cover.

[0009] Through the above technical solution: a hinge is arranged at the rear end of the protective cover, so that the protective cover can be opened and closed, and a sealing strip is installed in the bottom groove of the protective cover, which can play a role of sealing and waterproofing when the protective cover is closed.

[0010] As a further description of the above technical solution:

[0011] The fixing assembly includes a first connecting plate, one end of the first connecting plate is fixedly connected to the front end of the outer wall of the protective cover, the other end of the first connecting plate is rotatably connected to a connecting block, the outer wall of the connecting block is fixedly connected to a lever, the front end of the protective shell is fixedly connected to a second connecting plate, the other end of the second connecting plate is fixedly connected to a fixing column, a mounting hole is opened in the middle of the fixing column, and the end of the lever away from the connecting block is rotatably connected to the inside of the mounting hole.

[0012] Through the above technical solution: the outer wall of the connecting block is fixed with a lever, and the lever is pushed to slide out of the mounting hole, so that the protective cover can be opened.

[0013] As a further description of the above technical solution:

[0014] The limit assembly includes two push blocks, the top and bottom ends of the two push blocks are fixedly connected to the limit blocks, and the multiple limit blocks are slidably connected inside the limit grooves. Slide grooves are provided on both sides of the protective shell, and the two push blocks are slidably connected in the slide grooves. One end of the two push blocks is fixedly connected to the end of the connecting shaft away from the handle.

[0015] Through the above technical solution: the limit blocks fixed at the upper and lower ends of the push block slide in the limit groove, which can prevent the push block from popping out of the cavity under the action of the spring.

[0016] As a further description of the above technical solution:

[0017] The top of the base is fixedly connected with a plurality of bolts near the edge.

[0018] Through the above technical solution: a plurality of bolts fixed near the edge of the top of the base play a role in fixing the base on the installation object.

[0019] As a further description of the above technical solution:

[0020] A first protective plate is arranged at the top of the protective shell, a sound outlet is opened on the left side of the top of the first protective plate, two transparent plates are arranged at the front end of the first protective plate, and a plurality of triangular support plates are fixedly connected to the top of the first protective plate.

[0021] Through the above technical solution: the sound outlet hole can let the sound of the internal alarm come out, and the two transparent panels can conveniently observe the status of the indicator light inside the fire detector.

[0022] As a further description of the above technical solution:

[0023] The top ends of the plurality of triangular support plates are fixedly connected to a protective ring, a second protective plate is arranged on the top end of the protective ring, the four corners of the top end of the protective ring are fixedly connected to pillars, and the other ends of the plurality of pillars are fixedly connected to the four corners of the bottom end of the second protective plate.

[0024] Through the above technical solution: a protective ring is fixedly connected to the top of the triangular support plate, which can protect the internal detector.

[0025] As a further description of the above technical solution:

[0026] A battery cavity is provided in the middle of the bottom end of the base.

[0027] Through the above technical solution: a battery cavity is opened in the middle of the bottom end of the base, and a battery is placed inside to provide power to the fire detector.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, by using the connecting shaft, spring, push block and limit block in combination, a firm connection between the fire detector housing and the base is achieved, which solves the problem that the magnetic force of the magnetic attraction part disappears after long-term use, resulting in a loose connection between the base and the housing.

[0030] 2. In the present invention, by using the protective cover, the sealing strip and the hinge in coordination, the waterproof performance of the fire detector housing can be improved, ensuring that the detector works normally in a humid environment, and at the same time, the internal detector can be easily maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional diagram of a shell installation structure of a fire detector proposed by the utility model;

[0032] Figure 2 A schematic diagram of a connection block of a shell mounting structure of a fire detector proposed by the utility model;

[0033] Figure 3 A cross-sectional view of a fixing assembly of a shell mounting structure of a fire detector proposed by the utility model;

[0034] Figure 4 A cross-sectional view of a protective cover of a shell mounting structure of a fire detector proposed by the utility model;

[0035] Figure 5 A cross-sectional view of a protective shell of a shell installation structure of a fire detector proposed by the utility model;

[0036] Figure 6 A three-dimensional diagram of a hinge of a housing mounting structure of a fire detector proposed by the utility model;

[0037] Figure 7 A schematic diagram of a triangular support plate of a shell mounting structure of a fire detector proposed by the utility model;

[0038] Figure 8 This is a three-dimensional diagram of a protective ring of a shell mounting structure of a fire detector proposed by the utility model.

[0039] Legend:

[0040] 1. Base; 2. Fixed block; 3. Connecting shaft; 4. Handle; 5. Spring; 6. Waterproof structure; 601. Protective cover; 602. Ventilation hole; 603. First groove; 604. Sealing strip; 605. Hinge; 606. Second groove; 7. Push block; 8. Limit block; 9. Cavity; 10. Limit groove; 11. Bolt; 12. Protective shell; 13. First connecting plate; 14. Connecting block; 15. Mounting hole; 16. Lever; 17. Second connecting plate; 18. Slide groove; 19. Battery cavity; 20. Fixed column; 21. First protective plate; 22. Transparent plate; 23. Triangular support plate; 24. Protective ring; 25. Second protective plate; 26. Sound outlet; 27. Pillar. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] Reference Figure 1 , Figure 3 and Figure 5 The utility model provides an embodiment: a shell mounting structure of a fire detector, comprising a base 1, both sides of the top of the base 1 are fixedly connected with fixing blocks 2, the insides of the two fixing blocks 2 are provided with cavities 9, and both sides of the top and bottom of the inner side walls of the two cavities 9 are provided with limiting grooves 10;

[0043] Specifically, a cavity 9 is provided inside the fixed block 2, and a push block 7 is slidably provided inside. Limiting grooves 10 are provided at the upper and lower ends of the cavity 9, so that the limiting block 8 can slide inside, and can prevent the push block 7 from popping out of the cavity under the action of the spring 5. The spring 5 is fixedly connected to the inner wall of the fixed block 2 and the push block 7.

[0044] A connecting shaft 3 is provided on the inner side of the two fixing blocks 2, one end of the two connecting shafts 3 passes through the inner wall of the cavity 9 and is fixedly connected to a handle 4, a spring 5 is provided on the outer side of the two connecting shafts 3, one end of the two springs 5 ​​is fixedly connected to the fixing block 2, and the other end of the two springs 5 ​​is fixedly connected to the limit assembly, the top of the base 1 is fixedly connected to a protective shell 12, and the top of the protective shell 12 is provided with a waterproof structure 6;

[0045] Specifically, a connecting shaft 3 is provided on the inner side of the fixed block 2, one end of the connecting shaft 3 passes through the inner wall of the cavity 9 and is fixed with a handle 4, and a spring 5 is provided on the outer side of the connecting shaft 3. When the protective shell 12 needs to be removed, the handle 4 is pulled, and the connecting shaft 3 on the fixed handle 4 drives the push block 7 to be pulled out, so that it can be easily disassembled.

[0046] The limiting assembly includes two push blocks 7, both top and bottom ends of the two push blocks 7 are fixedly connected to the limiting blocks 8, and the plurality of limiting blocks 8 are slidably connected inside the limiting groove 10. Both sides of the protective shell 12 are provided with sliding grooves 18, and the two push blocks 7 are slidably connected in the sliding grooves 18. One end of the two push blocks 7 is fixedly connected to the end of the connecting shaft 3 away from the handle 4.

[0047] Specifically, when the protective shell 12 is pressed down and fixed, the push block 7 can be automatically reset and engage with the slide groove 18 provided on the outer wall of the protective shell 7 .

[0048] Reference Figure 2 , Figure 4 and Figure 6 The waterproof structure 6 includes a protective cover 601, the outer wall of the protective cover 601 is provided with two ventilation holes 602, the bottom inner side of the protective cover 601 is provided with a first groove 603, a sealing strip 604 is provided in the first groove 603, and a hinge 605 is fixedly connected to the rear end of the protective shell 12;

[0049] Specifically, a hinge is provided at the rear end of the protective cover to enable the protective cover to be opened and closed.

[0050] The upper end of the hinge 605 is fixedly connected with the protective cover 601, the bottom end of the protective cover 601 is engaged with the top of the protective shell 12, a second groove 606 is provided on the inner side of the top of the protective shell 12, the sealing strip 604 is slidably connected inside the second groove 606, and a fixing component is provided at the front end of the protective cover 601;

[0051] Specifically, a sealing strip is installed in the bottom groove of the protective cover, which can play a role of sealing and waterproofing when the protective cover is closed.

[0052] The fixing assembly includes a first connecting plate 13, one end of which is fixedly connected to the front end of the outer wall of the protective cover 601, the other end of the first connecting plate 13 is rotatably connected to the connecting block 14, the outer wall of the connecting block 14 is fixedly connected to the lever 16, the front end of the protective shell 12 is fixedly connected to the second connecting plate 17, the other end of the second connecting plate 17 is fixedly connected to the fixing column 20, the middle part of the fixing column 20 is provided with a mounting hole 15, and the end of the lever 16 away from the connecting block 14 is rotatably connected to the inside of the mounting hole 15;

[0053] Specifically, when the detector inside the protective cover 601 needs to be maintained, the lever 16 fixed to the outer wall of the connecting block 14 is pushed to make the bottom end of the lever 16 slide out of the mounting hole 15, so that the protective cover 601 can be opened.

[0054] Reference Figure 1 and Figure 5 , a plurality of bolts 11 are fixedly connected to the top of the base 1 near the edge;

[0055] Specifically, the base 1 can be fixed on the installation object by means of a plurality of bolts 11 fixed at the top of the base 1 near the edge.

[0056] A battery cavity 19 is provided in the middle of the bottom end of the base 1;

[0057] Specifically, a battery cavity 19 is provided in the middle of the bottom end of the base 1 , and a battery can be installed inside the battery cavity 19 to provide power to the fire detector.

[0058] Reference Figure 7 and Figure 8 A first protective plate 21 is provided at the top of the protective shell 12, a sound outlet 26 is provided at the left side of the top of the first protective plate 21, two transparent plates 22 are provided at the front end of the first protective plate 21, a plurality of triangular support plates 23 are fixedly connected to the top of the first protective plate 21; a protective ring 24 is fixedly connected to the top of the plurality of triangular support plates 23, a second protective plate 25 is provided at the top of the protective ring 24, pillars 27 are fixedly connected to the four corners of the top of the protective ring 24, and the other ends of the plurality of pillars (27) are fixedly connected to the four corners of the bottom end of the second protective plate 25;

[0059] Specifically, by opening a sound outlet hole 26 on the left side of the top of the first protective plate 21, the sound of the alarm of the internal alarm device can be transmitted. Through the two transparent plates 22 set at the front end of the first protective plate 21, the status of the internal indicator light of the fire detector can be easily observed, and it can be known whether the fire detector is working normally. The top of the triangular support plate 23 is fixedly connected with a protective ring 24, which can protect the internal detector and prevent the detector from being damaged by collision.

[0060] Working principle: When it is necessary to install the shell of the fire detector, it is necessary to first align the slide groove 18 on the protective shell 12 with the fixed block 2, and then press the protective shell 12 downward. The push block 7 will slide in the cavity 9 after being squeezed by the protective shell 12, and at the same time drive the limit block 8 to slide in the limit groove. When the protective shell 12 completely falls on the base 1, the spring 5 placed in the cavity 9 will push the push block 7 to reset and engage with the slide groove 18, so that the protective shell 12 and the base 1 are fixed, and then the base 1 is fixed to the surface of the installation object by the bolt 11, so that the shell of the fire detector is installed. When it is necessary to disassemble and maintain the fire detector, the handle 4 is pulled out, and the connecting shaft 3 fixed on the handle 4 drives the push block 7 to slide inward, so that the protective shell 12 can be removed, and then the lever 16 is moved to make the lever 16 slide out of the mounting hole 15, so that the protective cover 601 can be opened to maintain the internal detector.

[0061] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire detector housing mounting structure, comprising a base (1), characterized in that: Both sides of the top of the base (1) are fixedly connected with fixed blocks (2), each of the two fixed blocks (2) has a cavity (9) inside, and both sides of the top and bottom of the inner side walls of the two cavities (9) are provided with limiting grooves (10), the inner sides of the two fixed blocks (2) are provided with connecting shafts (3), one end of the two connecting shafts (3) passes through the inner side wall of the cavity (9) and is fixedly connected with a handle (4), the outer sides of the two connecting shafts (3) are provided with springs (5), one end of the two springs (5) is fixedly connected with the fixed block (2), and the other end of the two springs (5) is fixedly connected with the limiting assembly, and the top of the base (1) is fixedly connected with a protective shell (12), and the top of the protective shell (12) is provided with a waterproof structure (6).

2. The housing installation structure of a fire detector according to claim 1, characterized in that: The waterproof structure (6) comprises a protective cover (601), the outer wall of the protective cover (601) is provided with two ventilation holes (602), the inner side of the bottom of the protective cover (601) is provided with a first groove (603), a sealing strip (604) is arranged in the first groove (603), a hinge (605) is fixedly connected to the rear of the protective shell (12), the upper end of the hinge (605) is fixedly connected to the protective cover (601), the bottom end of the protective cover (601) is engaged with the top end of the protective shell (12), a second groove (606) is provided on the inner side of the top of the protective shell (12), the sealing strip (604) is slidably connected in the second groove (606), and a fixing component is arranged at the front end of the protective cover (601).

3. The housing installation structure of a fire detector according to claim 2, characterized in that: The fixing assembly comprises a first connecting plate (13), one end of the first connecting plate (13) is fixedly connected to the front end of the outer wall of the protective cover (601), the other end of the first connecting plate (13) is rotatably connected to a connecting block (14), the outer wall of the connecting block (14) is fixedly connected to a lever (16), the front end of the protective shell (12) is fixedly connected to a second connecting plate (17), the other end of the second connecting plate (17) is fixedly connected to a fixing column (20), a mounting hole (15) is provided in the middle of the fixing column (20), and one end of the lever (16) away from the connecting block (14) is rotatably connected to the inside of the mounting hole (15).

4. The shell installation structure of a fire detector according to claim 1, characterized in that: The limit assembly comprises two push blocks (7), the top and bottom ends of the two push blocks (7) are fixedly connected to the limit blocks (8), the plurality of limit blocks (8) are slidably connected inside the limit groove (10), both sides of the protective shell (12) are provided with slide grooves (18), the two push blocks (7) are slidably connected in the slide grooves (18), and one end of the two push blocks (7) is fixedly connected to the end of the connecting shaft (3) away from the handle (4).

5. The shell installation structure of a fire detector according to claim 1, characterized in that: A plurality of bolts (11) are fixedly connected to the top end of the base (1) near the edge.

6. The shell installation structure of a fire detector according to claim 1, characterized in that: A first protective plate (21) is arranged at the top of the protective shell (12); a sound outlet hole (26) is opened on the left side of the top of the first protective plate (21); two transparent plates (22) are arranged at the front end of the first protective plate (21); and a plurality of triangular support plates (23) are fixedly connected to the top of the first protective plate (21).

7. The shell installation structure of a fire detector according to claim 6, characterized in that: The top ends of the plurality of triangular support plates (23) are fixedly connected to a protective ring (24), a second protective plate (25) is arranged at the top end of the protective ring (24), the four corners of the top end of the protective ring (24) are fixedly connected to pillars (27), and the other ends of the plurality of pillars (27) are fixedly connected to the four corners of the bottom end of the second protective plate (25).

8. The shell installation structure of a fire detector according to claim 2, characterized in that: A battery cavity (19) is provided in the middle of the bottom end of the base (1).

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