Smoke-sensing fire detector
By designing structures such as lifting mechanisms and curved plates in the fire-sensitive detector, the detector is automatically cleaned, which solves the problem of dust clogging the smoke inlet, and improves the detection accuracy and cleaning convenience.
Patent Information
- Application Number
- CN202420992079.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-09
AI Technical Summary
After a long standby time, existing fire detectors may easily block the smoke inlet due to dust, affecting the detection accuracy and inconvenient cleaning.
A fire-sensitive detector with dust removal capability was designed, using structures such as lifting mechanisms and curved plates to realize automatic cleaning of wireless smoke detectors. Dust is blocked through the filter screen to prevent dust from falling out of the shell.
Automatic cleaning of the detector is realized, avoiding dust affecting detection accuracy and false alarms, reducing cleaning difficulty, and reducing the dispersion of dust indoors.
Smart Images
Figure CN222482806U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of smoke fire detection, in particular to a smoke fire detector. Background Art
[0002] Smoke fire detector, smoke fire detector product introduction, smoke fire detector is a fire detector that responds to solid particles produced by combustion or heat media. Smoke detectors use smoke as their main detection object and are suitable for places with smoldering stages in the early stages of fire.
[0003] Most smoke detectors are directly fixed on the ceiling and standby for long periods of time. If they are left idle for too long, a lot of dust will form on the surface of the smoke detector, which can easily block the smoke inlet and affect the detection accuracy of the smoke detector, making false alarms prone to occur. Since the smoke detector is fixed on the ceiling, it is very inconvenient to clean it.
[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content
[0005] In order to solve the above problems, the purpose of this utility model is to provide a smoke fire detector with dust cleaning capability.
[0006] To achieve the above-mentioned purpose, the utility model proposes a smoke fire detector, including a mounting plate, the lower surface of the mounting plate is fixedly connected to a shell, the lower surface of the shell is provided with a through hole, the side wall of the through hole is slidably connected to two vertical rods, the upper ends of the two vertical rods are fixedly connected to the fixing plate, one side of the fixing plate is fixedly connected to a support plate, a lifting mechanism is installed above the support plate, the lower surface of the fixing plate is rotatably connected to the wireless smoke detector, the vertical rods are located on both sides of the wireless smoke detector, there is a certain distance between the vertical rods and the wireless smoke detector, the upper surface of the fixing plate is fixedly connected to a driving motor, the main shaft of the driving motor is fixedly connected to the wireless smoke detector, the side wall of the shell is provided with a square through groove, two cross rods are slidably connected in the square through groove, one end of the two cross rods are fixedly connected to an arc plate, the inner side of the arc plate is fixedly connected to a cleaning brush, and the inner sides of the two arc plates are fixedly connected to multiple filters.
[0007] In one example, the lower end of the vertical rod is fixedly connected to the baffle, the lower surface of the baffle is fixedly connected to the supporting plate, the shape of the baffle is the same as the through hole, and the thickness is the same as the thickness of the shell.
[0008] In one example, the cleaning brush increases in length from top to bottom, the arc plate is a semicircular ring, the height of the arc plate is the same as the distance between the fixed plate and the baffle, and the inner diameter of the arc plate is greater than the radius of the wireless smoke detector.
[0009] In one example, all the filters are arranged in a vertical array, the filter area increases continuously from top to bottom, the shape of the bottom filter is semicircular, and the filters are distributed in a stepped manner from top to bottom.
[0010] In one example, one side of the two cross bars is fixedly connected to a support rod, one end of the support rod is fixedly connected to a rack, one side of the shell is fixedly connected to a protective cover, a servo motor is fixedly connected to the protective cover, a main shaft of the servo motor is fixedly connected to a gear, the racks are located on both sides of the gear, and the racks are meshed with the gear.
[0011] In one example, the height of the housing is greater than the distance between the upper surface of the drive motor and the lower surface of the support plate.
[0012] The smoke fire detector proposed by the utility model can bring the following beneficial effects:
[0013] First, by setting two arc plates, the lifting mechanism pulls the wireless smoke detector back into the shell, the two arc plates are close to each other, the wireless smoke detector is covered between the two arc plates, and the driving motor drives the wireless smoke detector to rotate. When rotating, the cleaning brush quickly cleans the wireless smoke detector, and dust falls from the wireless smoke detector and falls on the filter below, blocking the dust to prevent a large amount of dust from falling out of the shell. The device can automatically clean the wireless smoke detector in the shell, and does not require manual cleaning by the cleaning staff. The cleaning process is carried out in the shell, and the dust stirred up during cleaning can be blocked to prevent the dust from spreading everywhere;
[0014] Secondly, by setting a baffle, when the lifting mechanism pulls the wireless smoke detector back into the shell, the fixed plate drives the baffle and the supporting plate to move up through the vertical rod, the baffle enters the through hole to block the through hole, and the supporting plate contacts the bottom of the shell to block the gap. When cleaning, dust will not fall into the room through the through hole and reduce the indoor air quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 Schematic diagram of the structure inside the shell.
[0018] Figure 3 It is a schematic diagram of the structure of the baffle and the support plate.
[0019] Figure 4It is a schematic diagram of the structure of the curved plate, cleaning brush and filter.
[0020] 1. Mounting plate; 2. Shell; 3. Support plate; 5. Fixing plate; 6. Wireless smoke detector; 7. Driving motor; 8. Cross bar; 9. Arc plate; 10. Cleaning brush; 11. Filter; 12. Vertical bar; 13. Baffle; 14. Support plate; 15. Support rod; 16. Rack; 17. Protective cover; 18. Servo motor; 19. Gear. DETAILED DESCRIPTION
[0021] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.
[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.
[0026] like Figure 1 to Figure 4 As shown, an embodiment of the utility model proposes a smoke fire detector, including a mounting plate 1, the lower surface of the mounting plate 1 is fixedly connected to a shell 2, the lower surface of the shell 2 is provided with a through hole, the side wall of the through hole is slidably connected to two vertical rods 12, the upper ends of the two vertical rods 12 are fixedly connected to a fixing plate 5, one side of the fixing plate 5 is fixedly connected to a support plate 3, a lifting mechanism is installed above the support plate 3, the lower surface of the fixing plate 5 is rotatably connected to a wireless smoke detector 6, the vertical rods 12 are located on both sides of the wireless smoke detector 6, and there is a certain distance between the vertical rods 12 and the wireless smoke detector 6, the upper surface of the fixing plate 5 is fixedly connected to a driving motor 7, the main shaft of the driving motor 7 is fixedly connected to the wireless smoke detector 6, the side wall of the shell 2 is provided with a square through groove, two cross rods 8 are slidably connected in the square through groove, one end of the two cross rods 8 are fixedly connected to an arc plate 9, the inner side of the arc plate 9 is fixedly connected to a cleaning brush 10, the inner sides of the two arc plates 9 are fixedly connected to a plurality of filter screens 11, the mounting plate 1 is installed on the ceiling, the through hole faces downward, the wireless smoke detector 6 has a built-in battery, and when the wireless smoke detector 6 is working , the lifting mechanism is an electric push rod, which is located above the support plate 3. The lifting mechanism pushes the support plate 3 down, so that the wireless smoke detector 6 extends downwardly out of the through hole to detect the room. When a large amount of dust accumulates on the surface of the wireless smoke detector 6, the wireless smoke detector 6 is first remotely closed. At this time, the lifting mechanism pulls the wireless smoke detector 6 back into the shell 2, pushes the cross bar 8 to approach each other, and makes the two arc plates 9 approach each other, and the wireless smoke detector 6 is covered between the two arc plates 9. The cleaning brush 10 contacts the outside of the wireless smoke detector 6. At this time, the driving motor 7 drives the wireless smoke detector 6 to rotate. During rotation, the cleaning brush 10 quickly cleans the wireless smoke detector 6. Dust falls from the wireless smoke detector 6 and falls on the filter screen 11 below to block the dust and prevent a large amount of dust from falling out of the shell 2. By setting the arc plate 9, the wireless smoke detector 6 can be automatically cleaned in the shell 2, without the need for manual cleaning by the cleaning personnel. The cleaning process is carried out in the shell 2, and the dust stirred up during cleaning can be blocked to prevent dust from spreading everywhere.
[0027] Specifically, the lower end of the vertical rod 12 is fixedly connected to the baffle 13, and the lower surface of the baffle 13 is fixedly connected to the support plate 14. The shape of the baffle 13 is the same as the through hole, and the thickness is the same as the thickness of the shell 2. When the lifting mechanism pulls the wireless smoke detector 6 back into the shell 2, the fixed plate 5 drives the baffle 13 and the support plate 14 to move upward, and the baffle 13 enters the through hole to block the through hole. The support plate 14 contacts the bottom of the shell 2 to block the gap. When cleaning, dust will not fall into the room through the through hole and reduce the indoor air quality.
[0028] Specifically, the length of the cleaning brush 10 increases continuously from top to bottom, the arc plate 9 is a semicircular ring, the height of the arc plate 9 is the same as the distance between the fixed plate 5 and the baffle 13, and the inner diameter of the arc plate 9 is larger than the radius of the wireless smoke detector 6. During cleaning, due to the larger inner diameter of the arc plate 9, the two arc plates 9 are close to each other and fit each other to form a circular cylinder to cover the wireless smoke detector 6. At this time, the two arc plates 9 are located between the fixed plate 5 and the support plate 14, and the two ends are blocked by the fixed plate 5 and the support plate 14. At this time, the wireless smoke detector 6 is located in a cylindrical box formed by two arc plates 9, a fixed plate 5, and a baffle 13, which blocks dust and prevents dust from spreading around in the shell 2 during cleaning.
[0029] Specifically, all filters 11 are arranged in a vertical array, the area of the filter 11 increases continuously from top to bottom, the shape of the lowest filter 11 is semicircular, and the filter 11 is distributed in steps from top to bottom. When the two arc plates 9 are in contact, the lowest semicircular filter 11 is in contact to form a circular filter 11, which seals the bottom of the two arc plates 9, catches dust and reduces omissions.
[0030] Specifically, one side of the two cross bars 8 is fixedly connected to the support rod 15, one end of the support rod 15 is fixedly connected to the rack 16, one side of the shell 2 is fixedly connected to the protective cover 17, the protective cover 17 covers the rack 16, the protective cover 17 is fixedly connected to the servo motor 18, the main shaft of the servo motor 18 is fixedly connected to the gear 19, the rack 16 is located on both sides of the gear 19, the rack 16 is meshed with the gear 19, when the arc plate 9 is driven to move, the servo motor 18 drives the gear 19 to rotate, the gear 19 drives the two racks 16 to move, and the cross bar 8 is controlled to move, and the cross bar 8 drives the arc plate 9 to move, which reduces human participation and is more convenient.
[0031] Specifically, the height of the shell 2 is greater than the distance between the upper surface of the drive motor 7 and the lower surface of the support plate 14, so that the shell 2 can accommodate the equipment from the drive motor 7 to the support plate 14, which is convenient for the next step of cleaning.
[0032] Working principle: The wireless smoke detector 6 is turned off by remote control. At this time, the lifting mechanism pulls the wireless smoke detector 6 back into the shell 2, the baffle 13 enters the through hole to block the through hole, the support plate 14 contacts the bottom of the shell 2 to block the gap, and the servo motor 18 drives the gear 19 to rotate, the gear 19 drives the two racks 16 to move, the control cross bar 8 moves, the two arc plates 9 approach each other, and the wireless smoke detector 6 is covered between the two arc plates 9. The driving motor 7 drives the wireless smoke detector 6 to rotate. During rotation, the cleaning brush 10 quickly cleans the wireless smoke detector 6, and dust falls from the wireless smoke detector 6 and falls on the filter 11 below.
[0033] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
[0034] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A smoke fire detector, characterized in that: The invention comprises a mounting plate (1), the lower surface of the mounting plate (1) is fixedly connected to a housing (2), the lower surface of the housing (2) is provided with a through hole, the side wall of the through hole is slidably connected to two vertical rods (12), the upper ends of the two vertical rods (12) are fixedly connected to a fixing plate (5), one side of the fixing plate (5) is fixedly connected to a support plate (3), a lifting mechanism is installed above the support plate (3), the lower surface of the fixing plate (5) is rotatably connected to a wireless smoke detector (6), the vertical rods (12) are located on both sides of the wireless smoke detector (6), and are connected to the wireless smoke detector (6). There is a certain distance between the wireless smoke detectors (6), the upper surface of the fixing plate (5) is fixedly connected to the driving motor (7), the main shaft of the driving motor (7) is fixedly connected to the wireless smoke detector (6), the side wall of the shell (2) is provided with a square through groove, two cross bars (8) are slidably connected in the square through groove, one end of the two cross bars (8) are fixedly connected to the arc plate (9), the inner side of the arc plate (9) is fixedly connected to the cleaning brush (10), and the inner sides of the two arc plates (9) are fixedly connected to a plurality of filter screens (11).
2. A smoke fire detector according to claim 1, characterized in that: The lower end of the vertical rod (12) is fixedly connected to a baffle (13), and the lower surface of the baffle (13) is fixedly connected to a support plate (14). The baffle (13) has the same shape as the through hole and the same thickness as the shell (2).
3. A smoke fire detector according to claim 2, characterized in that: The length of the cleaning brush (10) increases continuously from top to bottom, the arc plate (9) is a semicircular ring, the height of the arc plate (9) is the same as the distance between the fixed plate (5) and the baffle (13), and the inner diameter of the arc plate (9) is greater than the radius of the wireless smoke detector (6).
4. A smoke fire detector according to claim 1, characterized in that: All the filter screens (11) are arranged in a vertical array, the area of the filter screens (11) increases continuously from top to bottom, the shape of the bottom filter screen (11) is semicircular, and the filter screens (11) are distributed in a stepped manner from top to bottom.
5. A smoke fire detector according to claim 1, characterized in that: One side of the two cross bars (8) is fixedly connected to a support rod (15), one end of the support rod (15) is fixedly connected to a rack (16), one side of the housing (2) is fixedly connected to a protective cover (17), the protective cover (17) is fixedly connected to a servo motor (18), the main shaft of the servo motor (18) is fixedly connected to a gear (19), the rack (16) is located on both sides of the gear (19), and the rack (16) is meshed with the gear (19).
6. A smoke fire detector according to claim 2, characterized in that: The height of the housing (2) is greater than the distance between the upper surface of the drive motor (7) and the lower surface of the support plate (14).