Smoke detector

Abstract

The utility model relates to the technical field of smoke detectors, in particular to a smoke detector, which comprises a main body comprising a casing, a protective cover fixedly connected inside the casing, a mounting plate mounted at the bottom of the casing, a bottom plate arranged on the inner surface of the casing, a battery compartment fixedly connected to the surface of the bottom plate, and a power source connected with the battery compartment. A storage battery is mounted on the surface of the battery bin; the quick release mechanism comprises a clamping rod. According to the utility model, the housing and the mounting plate are split, the surface of the mounting plate is provided with the clamping groove, the split smoke detector is mounted and clamped, and the side surface of the housing is provided with the limiting groove, so that the limiting block can be connected with the limiting groove in a clamping manner under the action of the supporting spring; according to the smoke detector, the whole smoke detector is further limited and fixed, meanwhile, the purpose that the whole smoke detector is disassembled when the smoke detector is maintained or a battery is replaced is avoided, the disassembly frequency is reduced, and disassembly and assembly are more convenient and faster.

Description

Technical Field

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

[0002] Smoke detectors are used in fire protection systems, which mainly achieve fire prevention by monitoring the concentration of smoke. They are widely used in various fire alarm systems, which plays a good role in maintaining our safety and allowing us to further improve its process.

[0003] When installing a smoke detector, bolts are usually used to install and connect the detector to the wall. However, existing smoke detectors need to be disassembled many times during inspection, maintenance or battery installation. The bolt structure makes disassembly inconvenient and multiple disassembly will damage the structure, affecting its operating efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a smoke detector to solve the problem that the smoke detector proposed in the above background technology needs to be disassembled many times during inspection, maintenance or battery installation, the bolt structure makes disassembly inconvenient and multiple disassembly will damage the structure, affecting its operating efficiency.

[0005] In order to achieve the above object, the utility model provides the following technical solution, a smoke detector, comprising:

[0006] The main body comprises a casing, a protective cover is fixedly connected to the inside of the casing, a mounting plate is installed at the bottom of the casing, a bottom plate is arranged on the inner surface of the casing, a battery compartment is fixedly connected to the surface of the bottom plate, and a storage battery is installed on the surface of the battery compartment;

[0007] The quick-release mechanism includes a locking rod, which is fixedly connected to the lower surface of the casing, a locking groove is provided on the surface of the mounting plate, a mounting bin is fixedly connected to the surface of the mounting plate, a limiting groove is provided on the surface of the casing, a supporting spring is fixedly connected to the inner surface of the mounting bin, a connecting rod is abutted and connected to the inner surface of the mounting bin, and a limiting block and a pull plate are fixedly connected to the surface of the connecting rod.

[0008] Preferably, the surfaces of the engaging rod and the engaging groove are trapezoidal, and two groups of the engaging rod and the engaging groove are provided. The two groups of the engaging rods are fixedly connected to the two ends of the casing, the surface size of the engaging rod is smaller than the surface size of the engaging groove, and the two groups of the engaging rods are engaged and connected to the surfaces of the two groups of engaging grooves.

[0009] Preferably, the surface size of the limit block is smaller than the surface size of the limit slot, and two groups of mounting bins are provided, and the two groups of mounting bins are provided on both sides of the casing. One side of the connecting rod is fixedly connected with a pull plate, and the other side of the connecting rod is fixedly connected with a limit block, and a through hole is opened on the surface of the mounting bin.

[0010] Preferably, the limit block is connected to the surface of the through hole, the surface of the pull plate is L-shaped and fits on the upper surface of the installation bin, one end of the support spring is fixedly connected to the inner surface of the installation bin, and the other end of the support spring is fixedly connected to the surface of the connecting rod.

[0011] Preferably, a limiting mechanism is provided on the surface of the battery compartment, and the limiting mechanism includes a snap-fit ​​plate, which is snap-fitted to the surface of the battery, a protrusion is fixedly connected to the surface of the snap-fit ​​plate, a longitudinal groove and a transverse groove are provided on the inner surface of the battery compartment, and a connecting spring is fixedly connected to the surface of the snap-fit ​​plate.

[0012] Preferably, two groups of the snap-fit ​​plates are provided, one side of the two groups of the snap-fit ​​plates is arc-shaped, and the other side of the two groups of the snap-fit ​​plates is square, the snap-fit ​​plates are snap-connected to the surface of the battery, and the surface size of the snap-fit ​​plates is smaller than the inner surface size of the battery compartment.

[0013] Preferably, the protrusions are provided in two groups, each group has four protrusions, each group of the protrusions is fixedly connected to both sides of the clamping plates, the surface size of the protrusions is smaller than the surface size of the longitudinal groove and the transverse groove, and the two ends of the connecting spring are fixedly connected to the surfaces of the two groups of clamping plates.

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

[0015] 1. By disassembling the casing and the mounting plate, and opening a snap-fit ​​groove on the surface of the mounting plate, the disassembled smoke detector can be installed and snap-fitted, and by opening a limit groove on the side of the casing, the limit block can be snap-fitted and connected with the limit groove under the connection action of the support spring, thereby further realizing the limit fixation of the entire smoke detector, and at the same time avoiding the purpose of disassembling the entire smoke detector when repairing the smoke detector or replacing the battery, reducing the number of disassembly times, protecting the overall mechanism, and making disassembly and assembly more convenient and quick.

[0016] 2. By slotting the surface of the battery compartment and enabling the protrusion to slide on the surface of the transverse groove and the longitudinal groove, the battery can be snapped and fixed to the surface of the battery compartment through the snap plate under the connection action of the protrusion and the snap plate, and the snap plate can snap the battery more firmly under the connection action of the connecting spring and the snap plate, and at the same time, it can avoid the situation where the battery becomes loose or falls when installing the smoke detector, further reducing the malfunction problem when the smoke detector is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top-down perspective schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a bottom-up stereoscopic schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the installation bin of the utility model;

[0020] Figure 4 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the longitudinal groove of the utility model;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1. casing; 11. protective cover; 12. mounting plate; 13. bottom plate; 14. battery compartment; 15. battery; 2. engaging rod; 21. engaging groove; 22. mounting compartment; 23. limiting groove; 24. limiting block; 25. connecting rod; 26. pulling plate; 27. supporting spring; 3. engaging plate; 31. protrusion; 32. longitudinal groove; 33. transverse groove; 34. connecting spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 , an embodiment provided by the utility model:

[0025] A smoke detector comprising:

[0026] The main body includes a housing 1, a protective cover 11 is fixedly connected to the inside of the housing 1, a mounting plate 12 is installed at the bottom of the housing 1, a bottom plate 13 is arranged on the inner surface of the housing 1, a battery compartment 14 is fixedly connected to the surface of the bottom plate 13, and a battery 15 is installed on the surface of the battery compartment 14. The smoke detector is installed on the wall through the mounting plate 12 and the bolt mechanism on the surface thereof, and the housing 1 and the mounting plate 12 are split to reduce the splitting of the mounting plate 12 and the wall;

[0027] The quick-release mechanism includes a locking rod 2, which is fixedly connected to the lower surface of the casing 1. A locking groove 21 is provided on the surface of the mounting plate 12. A mounting bin 22 is fixedly connected to the surface of the mounting plate 12. A limiting groove 23 is provided on the surface of the casing 1. A supporting spring 27 is fixedly connected to the inner surface of the mounting bin 22. A connecting rod 25 is abutted against the inner surface of the mounting bin 22. A limiting block 24 and a pull plate 26 are fixedly connected to the surface of the connecting rod 25. The casing 1 is spliced ​​under the connection of the locking rod 2 and the locking groove 21. The spliced ​​casing 1 is fixed under the connection of the limiting groove 23 and the limiting block 24. This facilitates the disassembly and maintenance of the smoke detector and protects the overall structure of the smoke detector.

[0028] Furthermore, the surfaces of the engaging rod 2 and the engaging groove 21 are trapezoidal, and two groups of the engaging rod 2 and the engaging groove 21 are provided. The two groups of engaging rods 2 are fixedly connected to the two ends of the casing 1. The surface size of the engaging rod 2 is smaller than the surface size of the engaging groove 21. The two groups of engaging rods 2 are engaged with the surfaces of the two groups of engaging grooves 21. Through the engagement between the engaging rods 2 and the engaging grooves 21, the effect of connecting and installing the disassembled casing 1 and the mounting plate 12 is achieved.

[0029] Furthermore, the surface size of the limit block 24 is smaller than the surface size of the limit groove 23. Two groups of mounting bins 22 are provided, and the two groups of mounting bins 22 are provided on both sides of the housing 1. One side of the connecting rod 25 is fixedly connected with a pull plate 26, and the other side of the connecting rod 25 is fixedly connected with the limit block 24. A through hole is provided on the surface of the mounting bin 22. Through the connection among the limit block 24, the connecting rod 25 and the pull plate 26, the engagement effect of the limit block 24 and the limit groove 23 can be achieved by pulling the pull plate 26.

[0030] Furthermore, the limit block 24 penetrates and is connected to the surface of the through hole, the surface of the pull plate 26 is L-shaped and fits on the upper surface of the installation bin 22, one end of the support spring 27 is fixedly connected to the inner surface of the installation bin 22, and the other end of the support spring 27 is fixedly connected to the surface of the connecting rod 25. Under the action of the support spring 27, a certain force is applied to the connecting rod 25 to achieve the engagement between the limit block 24 and the limit groove 23, thereby further achieving the purpose of fixing and limiting the casing 1.

[0031] Furthermore, two groups of snap-fit ​​plates 3 are provided, one side of the two groups of snap-fit ​​plates 3 is arc-shaped, and the other side of the two groups of snap-fit ​​plates 3 is square. The snap-fit ​​plates 3 are snap-fitted to the surface of the battery 15, and the surface size of the snap-fit ​​plates 3 is smaller than the inner surface size of the battery compartment 14. The close fit between the snap-fit ​​plates 3 and the battery 15 prevents the battery 15 and the battery compartment 14 from falling off when the smoke detector is used.

[0032] Furthermore, two groups of protrusions 31 are provided, and the number of protrusions 31 in each group is four. Each group of protrusions 31 is fixedly connected to both sides of the locking plate 3. The surface size of the protrusions 31 is smaller than the surface size of the longitudinal groove 32 and the transverse groove 33. Both ends of the connecting spring 34 are fixedly connected to the surfaces of the two groups of locking plates 3. Each group of protrusions 31 is evenly distributed on both sides of the locking plate 3 with the central axis of the locking plate 3. Under the action of the two groups of connecting springs 34, the two groups of locking plates 3 are connected, and at the same time, the tension applied to the locking plate 3 makes the locking groove 21 and the transverse groove 33 more firmly engaged.

[0033] Working principle: first install the mounting plate 12 on the wall where the smoke detector is to be placed through the bolt mechanism on its surface, then slide the engaging rod 2 along the surface of the engaging groove 21 so that the two are fully engaged, and align the limiting groove 23 with the limiting block 24, then pull the pull plates 26 on both sides of the casing 1 to make them slide on the upper surface of the mounting bin 22. At this time, the support spring 27 is in a compressed state. After the casing 1 is installed, release the pull plates 26 on both sides, and support the connecting rod 25 under the action of the force generated by the mounting bin 22, so that the connecting rod 25 is abutted and connected to the inner surface of the mounting bin 22, and at the same time, the limiting block 24 penetrates the through hole and is engaged and connected to the surface of the limiting groove 23.

[0034] When installing the battery, first engage the battery 15 and the inner surface of the battery compartment 14, and pull the two sets of engaging plates 3 to stretch the connecting spring 34 to generate a certain force, and then slide the protrusions 31 connected on the two sets of engaging plates 3 along the longitudinal grooves 32 at the same time, so that the engaging plates 3 are engaged with the surface of the battery 15. At this time, release the two sets of engaging plates 3, and under the action of the connecting spring 34, the protrusion 31 slides along the surface of the transverse groove 33 until it abuts against the surface of the transverse groove 33.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A smoke detector, characterized in that: include: A main body comprises a casing (1), a protective cover (11) is fixedly connected to the inside of the casing (1), a mounting plate (12) is installed at the bottom of the casing (1), a bottom plate (13) is arranged on the inner surface of the casing (1), a battery compartment (14) is fixedly connected to the surface of the bottom plate (13), and a storage battery (15) is installed on the surface of the battery compartment (14); The quick release mechanism comprises a locking rod (2), the locking rod (2) is fixedly connected to the lower surface of the casing (1), the surface of the mounting plate (12) is provided with a locking groove (21), the surface of the mounting plate (12) is fixedly connected to a mounting bin (22), the surface of the casing (1) is provided with a limiting groove (23), the inner surface of the mounting bin (22) is fixedly connected to a supporting spring (27), the inner surface of the mounting bin (22) is abuttedly connected to a connecting rod (25), and the surface of the connecting rod (25) is fixedly connected to a limiting block (24) and a pull plate (26).

2. A smoke detector according to claim 1, characterized in that: The surfaces of the engaging rod (2) and the engaging groove (21) are trapezoidal, and the engaging rod (2) and the engaging groove (21) are provided in two groups. The two groups of the engaging rod (2) are fixedly connected to the two ends of the housing (1), and the surface size of the engaging rod (2) is smaller than the surface size of the engaging groove (21). The two groups of the engaging rod (2) are engaged with the surfaces of the two groups of engaging grooves (21).

3. A smoke detector according to claim 1, characterized in that: The surface size of the limit block (24) is smaller than the surface size of the limit slot (23); two groups of the installation bins (22) are provided, and the two groups of the installation bins (22) are provided on both sides of the housing (1); one side of the connecting rod (25) is fixedly connected to a pull plate (26), and the other side of the connecting rod (25) is fixedly connected to the limit block (24); and a through hole is provided on the surface of the installation bin (22).

4. A smoke detector according to claim 3, characterized in that: The limit block (24) is connected to the surface of the through hole, the surface of the pull plate (26) is L-shaped and fits the upper surface of the installation bin (22), one end of the support spring (27) is fixedly connected to the inner surface of the installation bin (22), and the other end of the support spring (27) is fixedly connected to the surface of the connecting rod (25).

5. A smoke detector according to claim 1, characterized in that: The surface of the battery compartment (14) is provided with a limiting mechanism, the limiting mechanism comprising a clamping plate (3), the clamping plate (3) is clamped and connected to the surface of the storage battery (15), a protrusion (31) is fixedly connected to the surface of the clamping plate (3), a longitudinal groove (32) and a transverse groove (33) are provided on the inner surface of the battery compartment (14), and a connecting spring (34) is fixedly connected to the surface of the clamping plate (3).

6. A smoke detector according to claim 5, characterized in that: The snap-fit ​​plates (3) are provided in two groups, one side of the two groups of snap-fit ​​plates (3) is arc-shaped, and the other side of the two groups of snap-fit ​​plates (3) is square. The snap-fit ​​plates (3) are snap-fitted and connected to the surface of the storage battery (15), and the surface size of the snap-fit ​​plates (3) is smaller than the inner surface size of the battery compartment (14).

7. A smoke detector according to claim 5, characterized in that: The protrusions (31) are provided in two groups, each group of the protrusions (31) has four protrusions, each group of the protrusions (31) is fixedly connected to the two sides of the clamping plate (3), the surface size of the protrusions (31) is smaller than the surface size of the longitudinal groove (32) and the transverse groove (33), and the two ends of the connecting spring (34) are fixedly connected to the surfaces of the two groups of clamping plates (3).

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