Shell structure of photoelectric smoke fire detector

Abstract

The utility model discloses a housing structure of a photoelectric smoke fire detector, and relates to the technical field of photoelectric smoke fire detectors. The shell structure of the photoelectric smoke fire detector comprises a mounting plate, a mounting ring is arranged at the bottom of the mounting plate, a limiting mechanism is arranged at the bottom of the mounting ring, and a cleaning mechanism is arranged at the bottom of the mounting ring. According to the shell structure of the photoelectric smoke-sensing fire detector, through the arrangement of the connecting ring, when the ventilation groove needs to be prevented from being blocked, the output shaft of the motor drives the screw rod to rotate, and at the moment, the threaded groove in threaded sleeving connection with the outer surface of the screw rod ascends and descends; and when the threaded groove ascends and descends, the connecting rod and the limiting disc drive the connecting ring and the cleaning head to vertically ascend and descend in the connecting head and the vent groove, the vent groove is cleaned through the cleaning head, cobwebs, dust or oil sludge attached to the vent groove are scraped away, and the device can conveniently avoid blockage of the vent groove.

Description

Technical Field

[0001] This utility model belongs to the technical field of photoelectric smoke detectors, specifically relating to the housing structure of a photoelectric smoke detector. Background Technology

[0002] Photoelectric smoke detectors are a common type of fire detection device. Under normal, smoke-free monitoring conditions, the photosensitive element in the detector does not receive any light signal. When smoke particles enter the detection chamber, the smoke particles scatter the light emitted by the infrared light-emitting element, and some of the scattered light is received by the photosensitive element. When the intensity of the light signal received by the photosensitive element reaches a certain threshold, the detector issues a fire alarm signal.

[0003] The aforementioned device lacks a structure for cleaning the housing of the photoelectric smoke detector during use. This means that existing photoelectric smoke detectors require good airflow to detect and issue alarms in a timely manner. However, since the detectors are often used in corridors and basements, the housing is easily entangled with cobwebs and other dust and debris, resulting in slow airflow around the housing and affecting the detector's real-time detection. Based on the shortcomings of existing technology, this utility model designs a housing structure for a photoelectric smoke detector. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a housing structure for a photoelectric smoke detector, which features the ability to clean the outer shell of the photoelectric smoke detector.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a housing structure for a photoelectric smoke detector, including a mounting plate, a mounting ring at the bottom of the mounting plate, a limiting mechanism at the bottom of the mounting ring, and a cleaning mechanism at the bottom of the mounting ring;

[0006] A cleaning mechanism includes a connecting ring, a cleaning head, a connecting rod, a sleeve, a threaded groove, and a limiting plate. The connecting ring is slidably connected to the bottom of a mounting ring. The cleaning head is disposed inside the connecting ring. The connecting rod is fixedly connected inside the connecting ring. A sleeve is fixedly connected to one side of the connecting rod. The sleeve has a threaded groove inside. A limiting plate is fixedly connected to one side of the connecting rod.

[0007] As a preferred technical solution for the housing structure of a photoelectric smoke detector according to this utility model, the limiting mechanism includes a connector, a venting groove, a limiting ring, a motor, a lead screw, and a limiting groove. The connector is fixedly connected to the bottom of the mounting ring, and a venting groove is provided on one side of the connector. A limiting ring is fixedly connected inside the connector. The motor is installed at the bottom of the mounting plate, and a lead screw is provided at the bottom of the motor. A limiting groove is provided on one side of the connector.

[0008] As a preferred technical solution for the housing structure of a photoelectric smoke detector according to this utility model, the top of the mounting plate is provided with a mounting hole, the top of the mounting plate is provided with a sliding groove, and one side of the sliding groove is provided with a retaining groove.

[0009] As a preferred technical solution for the housing structure of a photoelectric smoke detector according to this utility model, a retaining strip is fixedly connected to the top of the mounting ring, a limiting plate is fixedly connected to the bottom of the mounting ring, a connecting hole is opened on the top of the limiting plate, and a limiting rod is fixedly connected to the bottom of the limiting plate.

[0010] As a preferred technical solution for the housing structure of a photoelectric smoke detector of this utility model, the connecting ring is slidably sleeved on the outer surface of the connector, and the cleaning head is slidably connected inside the ventilation groove.

[0011] As a preferred technical solution for the housing structure of a photoelectric smoke detector of this utility model, the connecting rod is slidably connected inside the limiting groove, and the sleeve is threaded onto the outer surface of the lead rod.

[0012] As a preferred technical solution for the housing structure of a photoelectric smoke detector according to this utility model, the sleeve is slidably connected to the bottom of the limiting plate, and the limiting disc is slidably connected to the outer surface of the limiting rod.

[0013] As a preferred technical solution for the housing structure of a photoelectric smoke detector of this utility model, the lead screw is rotatably connected inside the connector and the lead screw is rotatably connected inside the limiting ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, this utility model, by setting a connecting ring, when it is necessary to avoid clogging of the ventilation groove, firstly, the output shaft of the motor drives the lead screw to rotate. At this time, the threaded groove on its outer surface is raised and lowered accordingly. When the threaded groove is raised and lowered, the connecting rod and the limiting plate drive the connecting ring and the cleaning head to rise and fall vertically inside the connecting head and the ventilation groove. The cleaning head cleans the ventilation groove and scrapes off the cobwebs, dust or grease attached to it. This device helps to avoid clogging of the ventilation groove. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the mounting ring structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting hole structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the card strip structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the cleaning mechanism structure of this utility model.

[0023] In the diagram: 1. Mounting plate; 101. Mounting hole; 102. Slide groove; 103. Slot; 2. Mounting ring; 201. Locking strip; 202. Limiting plate; 203. Connecting hole; 204. Limiting rod; 3. Limiting mechanism; 301. Connector; 302. Vent groove; 303. Limiting ring; 304. Motor; 305. Lead screw; 306. Limiting groove; 4. Cleaning mechanism; 401. Connecting ring; 402. Cleaning head; 403. Connecting rod; 404. Sleeve; 405. Threaded groove; 406. Limiting plate. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1-6 The present invention provides the following technical solution: a housing structure for a photoelectric smoke detector, including a mounting plate 1, a mounting ring 2 at the bottom of the mounting plate 1, a limiting mechanism 3 at the bottom of the mounting ring 2, and a cleaning mechanism 4 at the bottom of the mounting ring 2.

[0027] The mounting plate 1 has a mounting hole 101 on its top, a sliding groove 102 on its top, and a slot 103 on one side of the sliding groove 102.

[0028] The top of the mounting ring 2 is fixedly connected with a retaining strip 201, and the bottom of the mounting ring 2 is fixedly connected with a limiting plate 202. The top of the limiting plate 202 is provided with a connecting hole 203, and the bottom of the limiting plate 202 is fixedly connected with a limiting rod 204.

[0029] Further explanation is needed: The bottom of the mounting plate 1 is equipped with electronic components for detection and warning, and the top of the mounting plate 1 has a mounting hole 101. The mounting plate 1 is fixed to the ceiling by inserting bolts into the mounting hole 101. The mounting plate 1 has a sliding groove 102 and a locking groove 103. The mounting ring 2, the limiting mechanism 3 and the cleaning mechanism 4 can be locked onto the bottom of the mounting plate 1 by the locking strip 201 set on the top of the mounting ring 2. The cleaning mechanism 4 is set to prevent the ventilation groove 302 from being blocked and affecting the detector effect.

[0030] Example 2

[0031] Please see Figure 2-6 The present invention provides the following technical solution:

[0032] The cleaning mechanism 4 includes a connecting ring 401, a cleaning head 402, a connecting rod 403, a sleeve 404, a threaded groove 405, and a limiting plate 406. The connecting ring 401 is slidably connected to the bottom of the mounting ring 2. The cleaning head 402 is provided inside the connecting ring 401. The connecting rod 403 is fixedly connected inside the connecting ring 401. The sleeve 404 is fixedly connected to one side of the connecting rod 403. The sleeve 404 has a threaded groove 405 inside. The limiting plate 406 is fixedly connected to one side of the connecting rod 403.

[0033] The limiting mechanism 3 includes a connector 301, a venting groove 302, a limiting ring 303, a motor 304, a lead screw 305, and a limiting groove 306. The connector 301 is fixedly connected to the bottom of the mounting ring 2. A venting groove 302 is provided on one side of the connector 301. A limiting ring 303 is fixedly connected inside the connector 301. The motor 304 is installed at the bottom of the mounting plate 1. A lead screw 305 is provided at the bottom of the motor 304. A limiting groove 306 is provided on one side of the connector 301.

[0034] The connecting ring 401 is slidably sleeved on the outer surface of the connector 301, and the cleaning head 402 is slidably connected to the inside of the venting groove 302.

[0035] The connecting rod 403 is slidably connected inside the limiting groove 306, and the sleeve 404 is threaded onto the outer surface of the lead screw 305.

[0036] Sleeve 404 is slidably connected to the bottom of limit plate 202, and limit disc 406 is slidably connected to the outer surface of limit rod 204.

[0037] The lead screw 305 is rotatably connected inside the connector 301, and the lead screw 305 is rotatably connected inside the limit ring 303.

[0038] Further explanation is needed: the output shaft of motor 304 drives the lead screw 305 to rotate, and at this time, the threaded groove 405 on its outer surface rises and falls accordingly. When the threaded groove 405 rises and falls, it drives the connecting ring 401 and the cleaning head 402 to rise and fall vertically inside the connecting head 301 and the ventilation groove 302 through the connecting rod 403 and the limiting plate 406. The cleaning head 402 cleans the ventilation groove 302 and scrapes off the cobwebs, dust or grease attached to it.

[0039] Working principle: When the housing structure of a photoelectric smoke detector is used, the top of the mounting plate 1 is first provided with a mounting hole 101. The mounting plate 1 is fixed to the ceiling by inserting bolts into the mounting hole 101. The mounting plate 1 is provided with a sliding groove 102 and a locking groove 103. The mounting ring 2, the limiting mechanism 3 and the cleaning mechanism 4 can be locked onto the bottom of the mounting plate 1 by the locking strip 201 provided on the top of the mounting ring 2. The cleaning mechanism 4 is provided to prevent the ventilation groove 302 from being blocked and affecting the detector effect.

[0040] When it is necessary to prevent the ventilation groove 302 from becoming clogged, the output shaft of the motor 304 drives the lead screw 305 to rotate. At this time, the threaded groove 405 on its outer surface rises and falls accordingly. When the threaded groove 405 rises and falls, the connecting rod 403 and the limiting plate 406 drive the connecting ring 401 and the cleaning head 402 to rise and fall vertically inside the connecting head 301 and the ventilation groove 302. The cleaning head 402 cleans the ventilation groove 302, scraping off the cobwebs, dust or grease attached to it. This device helps to prevent the ventilation groove 302 from becoming clogged.

[0041] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A housing structure for a photoelectric smoke detector, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a mounting ring (2) at the bottom, the mounting ring (2) is provided with a limiting mechanism (3) at the bottom, and the mounting ring (2) is provided with a cleaning mechanism (4) at the bottom. The cleaning mechanism (4) includes a connecting ring (401), a cleaning head (402), a connecting rod (403), a sleeve (404), a threaded groove (405), and a limiting plate (406). The connecting ring (401) is slidably connected to the bottom of the mounting ring (2). The cleaning head (402) is provided inside the connecting ring (401). The connecting rod (403) is fixedly connected inside the connecting ring (401). The sleeve (404) is fixedly connected to one side of the connecting rod (403). The threaded groove (405) is provided inside the sleeve (404). The limiting plate (406) is fixedly connected to one side of the connecting rod (403). The limiting mechanism (3) includes a connector (301), a vent groove (302), a limiting ring (303), a motor (304), a lead screw (305), and a limiting groove (306). The connector (301) is fixedly connected to the bottom of the mounting ring (2). A vent groove (302) is provided on one side of the connector (301). A limiting ring (303) is fixedly connected inside the connector (301). The motor (304) is installed at the bottom of the mounting plate (1). A lead screw (305) is provided at the bottom of the motor (304). A limiting groove (306) is provided on one side of the connector (301). The mounting plate (1) has a mounting hole (101) on its top, a sliding groove (102) on its top, and a slot (103) on one side of the sliding groove (102). The top of the mounting ring (2) is fixedly connected with a retaining strip (201), the bottom of the mounting ring (2) is fixedly connected with a limiting plate (202), the top of the limiting plate (202) is provided with a connecting hole (203), and the bottom of the limiting plate (202) is fixedly connected with a limiting rod (204).

2. The housing structure of a photoelectric smoke detector according to claim 1, characterized in that: The connecting ring (401) is slidably sleeved on the outer surface of the connector (301), and the cleaning head (402) is slidably connected to the inside of the ventilation groove (302).

3. The housing structure of a photoelectric smoke detector according to claim 1, characterized in that: The connecting rod (403) is slidably connected inside the limiting groove (306), and the sleeve (404) is threaded onto the outer surface of the lead screw (305).

4. The housing structure of a photoelectric smoke detector according to claim 1, characterized in that: The sleeve (404) is slidably connected to the bottom of the limiting plate (202), and the limiting disc (406) is slidably connected to the outer surface of the limiting rod (204).

5. The housing structure of a photoelectric smoke detector according to claim 1, characterized in that: The lead screw (305) is rotatably connected inside the connector (301) and the lead screw (305) is rotatably connected inside the limiting ring (303).

Images