CN210402630U

CN210402630U - Novel smoke alarm

Info

Publication number: CN210402630U
Application number: CN201921373319.3U
Authority: CN
Inventors: 袁林虎
Original assignee: Ningbo Sentek Electronics Co ltd
Current assignee: Ningbo Sentek Electronics Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-04-24
Anticipated expiration: 2029-08-22

Abstract

The utility model provides a novel smoke alarm belongs to electronic equipment's technical field. A novel smoke alarm comprises a base, a middle cover and an upper cover; the utility model discloses a set up the first screens groove that the groove width is different on the base, cover in and set up the first fixture block with first screens groove one-to-one, simultaneously, cover in and be provided with the second screens groove that the groove width is different, set up the second card foot that corresponds with second screens groove on the optics maze, make the installation of base and well lid and optics maze possess the directionality, it is more convenient to install; in addition, the elastic sheet terminal on the base is of an integrated structure and is fixed on the base through the pin with the sawtooth, and the elastic sheet terminal is in elastic contact with the probe of the optical maze, so that the connection is convenient, and the electric conduction is reliable; in addition, an annular blocking rib is arranged between the middle cover and the upper cover, so that the problem that smoke cannot enter due to air pressure can be effectively solved, and the performance of the smoke alarm is more reliable.

Description

Novel smoke alarm

Technical Field

The utility model relates to an electronic equipment's technical field specifically relates to a novel smoke alarm.

Background

With the improvement of safety consciousness of people, smoke alarms are widely used.

At present, smoke alarm on the market is because the restriction of structure, its base, the connection between well lid and the upper cover passes through screw or buckle connection, the directionality is relatively poor, cause the problem of installation direction misloading easily, influence smoke alarm subsequent use, cause the inconvenient problem of installation, in addition, the shell fragment in the conductive structure between smoke alarm's base and the well lid is the screw fixation, the inconvenient problem of wiring installation has been caused, there is the risk of contact failure, also do not benefit to conductive structure's production preparation simultaneously, in addition, in the use, there is the air current between installation carriers such as base and ceiling, make smoke alarm internal storage be atmospheric pressure, there is the problem that the flue gas can't enter into in the upper cover.

Disclosure of Invention

To the above-mentioned problem that exists among the prior art, it aims at providing a novel smoke alarm now, through setting up the screens structure of variation in size, the directionality of installation has been improved, quick installation has been realized, the problem that the installation direction makes mistakes has been avoided, conductive structure adopts the shell fragment terminal and the probe of integral type to carry out elastic contact simultaneously, it is more convenient to install, it is electrically conductive more reliable, more do benefit to the production preparation of structure, in addition, be provided with annular fender muscle between well lid and the upper cover, can effectively prevent the problem that leads to the unable entering of flue gas because of the atmospheric pressure problem, make smoke alarm's performance more reliable.

The specific technical scheme is as follows:

a novel smoke alarm having the features comprising: base, well lid and upper cover, well lid joint on the base, the upper cover joint covers in, wherein:

a first caulking groove is formed in one end of the base, a plurality of wiring fixing positions are arranged at the bottom of the first caulking groove, each wiring fixing position is clamped with a spring piece terminal, meanwhile, a plurality of first clamping grooves are formed in the wall of the first caulking groove, and the widths of the first clamping grooves are different;

the outer wall of one end of the middle cover is provided with a plurality of first clamping blocks which are inserted into the first caulking grooves, the first clamping blocks correspond to the first clamping grooves one by one, the other end of the middle cover is convexly provided with an annular blocking rib, the blocking rib is provided with a plurality of second clamping grooves, the groove widths of the second clamping grooves are different, the middle cover is provided with a plurality of probe holes on the inner side of the blocking rib, the inner side of the blocking rib is also provided with an optical labyrinth, the outer wall of the optical labyrinth is provided with second clamping pins which correspond to the second clamping grooves one by one, and probes on a circuit board of the optical labyrinth penetrate through the probe holes and abut against the elastic sheet terminals;

the upper cover is arranged on the middle cover;

the shell fragment terminal includes wiring portion, participates in and the shell fragment, and wiring portion, participates in and shell fragment formula structure as an organic whole, and the screw hole has been seted up to the one end of wiring portion, and the both ends of wiring portion all are provided with participating in of perpendicular setting, and participate in and be provided with the sawtooth, simultaneously, serve in the non-shell fragment that sets up the orientation of participating in that one side slope was arranged that deviates from of wiring portion.

Foretell novel smoke alarm, wherein, on the base and be located the one end relative with first caulking groove and be provided with the wiring groove, the tank bottom of wiring groove and the tank bottom coincidence of first caulking groove, and the middle part of the tank bottom of wiring groove and first caulking groove has seted up the through wires hole, and the through wires hole is located in the middle of the fixed position region of enclosing of a plurality of wiring.

Foretell novel smoke alarm, wherein, be provided with the fretwork between the tank bottom of wiring groove and the cell wall of wiring groove.

Foretell novel smoke alarm, wherein, first screens groove all is "L" font setting, and the groove terminal of the horizontal trough in each first screens groove all is provided with the perpendicular groove that sinks towards the tank bottom in first screens groove.

Foretell novel smoke alarm, wherein, in the first draw-in groove and towards first draw-in groove inboard be provided with the recess, set up the bump that corresponds with the recess on the first fixture block.

The novel smoke alarm comprises a probe, a spring plate, a circuit board and a probe hole, wherein the spring plate is provided with a contact end and a fixed end, the probe is arranged in a T shape, the fixed end is arranged on the large cross section, the contact end is arranged on the small cross section, the fixed end is fixed on the circuit board, and the contact end penetrates through the probe hole and abuts against the spring plate.

Foretell novel smoke alarm, wherein, cover on and seted up the light guide post hole, and the light guide post hole corresponds with the pilot lamp in the optics maze, and the light guide post is inserted and is located in the light guide post hole.

The novel smoke alarm is characterized in that a light guide column clamping seat is arranged on the optical maze and located at the position of the indicating lamp, the light guide column clamping seat is provided with a jack with an opening, and one end of the light guide column, which is inserted into the hole of the light guide column, is inserted into the jack with the opening and clamped.

Foretell novel smoke alarm, wherein, on the base and be located the cell wall of wiring groove and be provided with obviously adorn the wiring mouth, and the wall thickness of obviously adorning wiring mouth department is less than the cell wall thickness in other regions of wiring groove.

The positive effects of the technical scheme are as follows:

according to the novel smoke alarm, the first clamping grooves with different groove widths are arranged on the base, and the second clamping grooves with different groove widths are arranged on the blocking ribs, so that the clamping connection of the base and the middle cover and the clamping connection of the optical labyrinth on the middle cover can only be in one installation direction, the problem of error in the installation direction is avoided, and the installation is more convenient; in addition, the elastic sheet terminal abutted to the probe of the optical maze is of an integrated structure and is fixed on the base through the pin with the sawtooth, so that the production and the manufacture are convenient, the installation and the fixation on the base are convenient, the installation efficiency is improved, and the electric conduction reliability is ensured; in addition, the annular blocking rib is arranged on the middle cover, so that the optical labyrinth can be conveniently installed, the problem that smoke in the upper cover cannot enter due to the fact that air pressure is formed at the top due to the fact that air flow enters can be solved, and the detection reliability is higher; moreover, the upper cover is provided with a light guide column hole, and the optical labyrinth is provided with a light guide column clamping seat with an open jack, so that the light guide column can be inserted into the jack from the outside of the upper cover and can be elastically clamped, and the light guide column is convenient to mount; in addition, the hollows are arranged on the base and between the bottom of the wiring groove and the groove wall, so that the problem of outer wall deformation caused by shrinkage during production due to over-thick outer wall of the base can be effectively prevented, and the appearance of the product is improved; the outer wall of the shell is provided with an exposed wiring port which is beneficial to wiring of the smoke alarm; in addition, the probe is arranged in a T shape, and the fixed end with a large cross section is fixed on the circuit board, so that the probe is more stably installed on the circuit board, the problems of inclination and the like are prevented, and the structure is more reasonable; in addition, still be provided with the recess in first draw-in groove and towards first draw-in groove inboard, set up the bump that corresponds with the recess on the first fixture block for base and well lid can sound the suggestion when the joint targets in place, have improved the installation and have felt, are convenient for the acquisition of installation state.

Drawings

Fig. 1 is an exploded view of an embodiment of a novel smoke alarm of the present invention;

fig. 2 is a structural diagram of a spring terminal according to a preferred embodiment of the present invention;

fig. 3 is a diagram of the connection structure of the spring terminal and the screw according to a preferred embodiment of the present invention;

fig. 4 is a structural diagram of the middle cover according to a preferred embodiment of the present invention.

In the drawings: 1. a base; 11. a first caulking groove; 12. threading holes; 111. a wiring fixing position; 112. a dome terminal; 113. a first clamping groove; 1121. a wiring portion; 1122. a pin; 1123. a spring plate; 1124. saw teeth; 1125. a screw hole; 1131. a horizontal groove; 1132. sinking the vertical groove; 2. a middle cover; 21. a first clamping block; 22. blocking ribs; 23. a probe hole; 24. an optical maze; 211. salient points; 221. a second clamping groove; 241. a second clamping pin; 242. a probe; 3. an upper cover; 31. a light guide post hole; 4. a light guide pillar; 5. a screw; 6. and (7) a gasket.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically described with reference to fig. 1 to 4, but the following contents are not intended to limit the present invention.

Fig. 1 is an exploded view of an embodiment of the novel smoke alarm of the present invention. As shown in fig. 1, the novel smoke alarm provided by the present embodiment includes: base 1, well lid 2 and upper cover 3, well lid 2 joint is on base 1, and upper cover 3 joint is covered 2 in well, and the joint has optics maze 24 on well lid 2.

Specifically, the one end of base 1 is provided with first caulking groove 11, and the tank bottom of first caulking groove 11 is provided with a plurality of wiring fixed position 111, all block on each wiring fixed position 111 and be equipped with an elastic sheet terminal 112, the mounted position has been provided for elastic sheet terminal 112 through wiring fixed position 111, the electric connection of elastic sheet terminal 112 with the wire has also been convenient for simultaneously, a plurality of first screens groove 113 have been seted up on the cell wall of first caulking groove 11, and the groove width of first screens groove 113 all is different, make first screens groove 113 possess the discernability, only can just cooperate with first screens groove 113 under the condition that satisfies the groove width of all first screens grooves 113, provide the structure basis for follow-up and the setting of the single joint direction of well lid 2.

Specifically, the one end of well lid 2 is inserted and is located in first caulking groove 11, and well lid 2 is inserted and is provided with a plurality of first fixture blocks 21 on the outer wall of the one end of locating first caulking groove 11, and first fixture block 21 and first screens groove 113 one-to-one, make the one end of well lid 2 insert and locate first caulking groove 11 in the back, first fixture block 21 can block into first screens groove 113 in, and only when all first fixture blocks 21 all satisfy the groove width of first screens groove 113, first fixture block 21 just can block into first draw-in groove completely, thereby guaranteed the directionality of well lid 2 and base 1 joint, structural reliability is higher. In addition, the protruding annular fender muscle 22 that is provided with on the other end of well lid 2, and keep off and seted up a plurality of second screens groove 221 on the muscle 22, and the groove width of second screens groove 221 all differs, well lid 2 is gone up and is located the inboard of keeping off muscle 22 and has seted up a plurality of spy pinhole 23, and the inboard of keeping off muscle 22 still is provided with optics maze 24, be provided with the second card foot 241 with second screens groove 221 one-to-one on the outer wall of optics maze 24, equally, just can block in completely after needing to satisfy the demand of one-to-one between second screens groove 221 and the first card foot, the directionality of optics maze 24 installation on well lid 2 has been guaranteed equally, it supports to lean on shell fragment terminal 112 to do benefit to probe 242 on the circuit board of optics maze 24 to pass spy pinhole 23, structural design is more reasonable.

Specifically, the upper cover 3 covers the middle cover 2, and the optical labyrinth 24 is covered by the upper cover 3.

Fig. 2 is a structural diagram of a spring terminal according to a preferred embodiment of the present invention; fig. 3 is a connection structure diagram of the spring terminal and the screw according to a preferred embodiment of the present invention. As shown in fig. 1, fig. 2 and fig. 3, the elastic piece terminal 112 fixed on the wiring fixing portion 111 includes a wiring portion 1121, a pin 1122 and an elastic piece 1123, the wiring portion 1121, the pin 1122 and the elastic piece 1123 are integrated to facilitate the production of the elastic piece terminal 112, meanwhile, one end of the wiring portion 1121 is provided with a screw hole 1125, a screw 5 penetrates through the screw hole 1125 to compress the gasket 6, so that the power supply lead is pressed on the elastic piece terminal 112, and the electrical connection with the power supply lead is realized through the screw hole 1125. In addition, the both ends of wiring portion 1121 all are provided with the round pin 1122 of perpendicular setting, and be provided with sawtooth 1124 on the round pin 1122, make the accessible peg graft on the groove bottom of the first caulking groove 11 of disect insertion base 1, and through the chucking of sawtooth 1124, the problem that the shell fragment terminal 112 drops from base 1 and cause the electrical connection inefficacy or take place the incident has effectively been prevented, simultaneously, it is provided with towards the shell fragment 1123 of participating in one side slope arrangement to serve in one of wiring portion 1121 non-being provided with screw hole 1125, make shell fragment 1123 possess certain elastic force, make behind well lid 2 and base 1 joint, probe 242 can elasticity support and lean on shell fragment 1123, thereby the reliability of contact has been improved.

More specifically, the base 1 is gone up and is located the one end relative with first caulking groove 11 and be provided with the wiring groove, and the tank bottom of wiring groove does benefit to the line of walking of power supply wire through the wiring groove with the tank bottom coincidence of first caulking groove 11. And the middle part of the tank bottom of wiring groove and first caulking groove 11 has seted up through wires hole 12, and through wires hole 12 is located the regional centre that a plurality of wiring fixed positions 111 enclose for the end of a thread of power supply wire can penetrate first caulking groove 11 in from through wires hole 12, is convenient for carry out the electricity with shell fragment terminal 112 and is connected, and structural design is more reasonable.

More specifically, be provided with the fretwork between the tank bottom of wiring groove and the cell wall of wiring groove to, can set up the brace rod in the fretwork and connect, improve joint strength, thereby effectively prevented to shrink when leading to the fact production because of the outer wall of base 1 is too thick, cause the outer wall deformation and the problem of unevenness appears, improved the outward appearance aesthetic property of product.

More specifically, first screens groove 113 all is "L" font setting, and the groove terminal of the horizontal groove 1131 of each first screens groove 113 all is provided with the vertical groove 1132 that sinks towards the tank bottom of first screens groove 113, make first draw-in groove form for two "L" font structure combinations that are the centrosymmetric setting, thereby make behind first fixture block 21 card income first screens groove 113, need rotatory certain angle just can be died by the card, and realize the auto-lock, the reliability of well lid 2 and base 1 joint has been guaranteed.

Fig. 4 is a structural diagram of the middle cover according to a preferred embodiment of the present invention. As shown in fig. 1 and 4, a groove is formed in the first clamping groove of the base 1 and faces the inner side of the first clamping groove, and meanwhile, a convex point 211 corresponding to the groove is formed in the middle cover 2 and located on the first clamping block 21, so that when the middle cover 2 is clamped on the base 1 and clamped in place, the convex point 211 can be limited by the groove, the middle cover 2 is prevented from reversing, meanwhile, clamping in place prompting is also provided, installation handfeel is improved, and the installation state can be conveniently obtained.

More specifically, probe 242 of optics maze 24 still includes contact jaw and stiff end, and probe 242 is "T" font setting, and the cross section is big for the stiff end, and the cross section is little for the contact jaw, and the stiff end is fixed in on the circuit board, and the contact jaw passes probe hole 23 and supports and lean on shell fragment 1123, and through being fixed with the big stiff end of cross section and circuit board, can guarantee that the contact surface with the junction of circuit board is bigger, can provide spacing for the installation of probe 242 on the circuit board, also can prevent probe 242 slope simultaneously, and structural stability is higher.

More specifically, light guide column hole 31 has been seted up on upper cover 3, and light guide column hole 31 corresponds with the pilot lamp on the optics maze 24, and light guide column 4 inserts and locates in light guide column hole 31 for light guide column 4 can follow and insert in the light guide column hole 31. And, be provided with the leaded light post cassette on optics maze 24 and be located pilot lamp department, the leaded light post cassette is provided with and takes open-ended jack, leaded light post 4 inserts and take open-ended jack and chucking in locating the one end in leaded light post hole 31, make can all install the completion back at smoke alarm inner structure and upper cover 3, at last step insert leaded light post 4 directly from leaded light post hole 31 on the leaded light post cassette, take open-ended jack through the leaded light post cassette with 4 elasticity chuckles of leaded light post, realize the installation of leaded light post 4, make the installation of leaded light post 4 more convenient.

More specifically, be provided with the surface mounting wiring mouth on the base 1 and be located the cell wall of wiring groove, and the wall thickness that the surface mounting wiring mouth was located is less than the cell wall thickness of other regions of wiring groove for when needs are opened the line to smoke alarm installation, only need tear slightly the surface mounting wiring mouth can, the wiring of being convenient for, structural design is more reasonable.

The novel smoke alarm provided by the embodiment comprises a base 1, a middle cover 2 and an upper cover 3; the installation of the base 1, the middle cover 2 and the optical maze 24 has directionality and is more convenient because the base 1 is provided with the first clamping grooves 113 with different groove widths, the middle cover 2 is provided with the first clamping blocks 21 corresponding to the first clamping grooves 113 one by one, meanwhile, the middle cover 2 is provided with the second clamping grooves 221 with different groove widths, and the optical maze 24 is provided with the second clamping feet 241 corresponding to the second clamping grooves 221; in addition, the elastic sheet terminal 112 on the base 1 is an integrated structure and is fixed on the base 1 through the pin 1122 with the saw tooth 1124, and the elastic sheet terminal 112 elastically contacts with the probe 242 of the optical labyrinth 24, so that the connection is convenient, and the electric conduction is reliable; in addition, an annular blocking rib 22 is arranged between the middle cover 2 and the upper cover 3, so that the problem that smoke cannot enter due to air pressure can be effectively solved, and the performance of the smoke alarm is more reliable.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. A novel smoke alarm, comprising: base, well lid and upper cover, well lid joint in on the base, the upper cover joint in well cover, wherein:

a first caulking groove is formed in one end of the base, a plurality of wiring fixing positions are arranged at the bottom of the first caulking groove, each wiring fixing position is clamped with an elastic piece terminal, meanwhile, a plurality of first clamping grooves are formed in the wall of the first caulking groove, and the widths of the first clamping grooves are different;

the outer wall of one end of the middle cover is provided with a plurality of first clamping blocks which are inserted into the first caulking grooves, the first clamping blocks correspond to the first clamping grooves one by one, the other end of the middle cover is convexly provided with an annular blocking rib, the blocking rib is provided with a plurality of second clamping grooves, the groove widths of the second clamping grooves are different, the middle cover is provided with a plurality of probe holes which are positioned at the inner sides of the blocking ribs, the inner sides of the blocking ribs are also provided with an optical labyrinth, the outer wall of the optical labyrinth is provided with second clamping feet which correspond to the second clamping grooves one by one, and probes on a circuit board of the optical labyrinth penetrate through the probe holes and abut against the elastic sheet terminals;

the upper cover is arranged on the middle cover;

the shell fragment terminal includes wiring portion, participates in and the shell fragment, wiring portion participate in and shell fragment formula structure as an organic whole, the screw hole has been seted up to the one end of wiring portion, the both ends of wiring portion all are provided with the perpendicular setting participate in, just it is provided with the sawtooth on participating in, simultaneously, in wiring portion non-sets up one of screw hole is served and is provided with the orientation and deviates from participate in that one side slope arranges the shell fragment.

2. The novel smoke alarm device as claimed in claim 1, wherein a wiring groove is formed in the base at an end opposite to the first caulking groove, the bottom of the wiring groove coincides with the bottom of the first caulking groove, a threading hole is formed in the middle of the bottom of the wiring groove and the bottom of the first caulking groove, and the threading hole is located in the middle of an area surrounded by the plurality of wiring fixing positions.

3. The smoke alarm as claimed in claim 2, wherein a hollow is provided between the bottom of the groove and the wall of the groove.

4. The novel smoke alarm device as claimed in claim 1, wherein the first blocking grooves are all arranged in an L shape, and the groove terminal of the horizontal groove of each first blocking groove is provided with a sunken vertical groove facing the groove bottom of the first blocking groove.

5. The novel smoke alarm according to claim 1, wherein a groove is formed in the first clamping groove and faces the inner side of the first clamping groove, and a protruding point corresponding to the groove is formed on the first clamping block.

6. The smoke alarm as claimed in claim 1, wherein the probe comprises a contact end and a fixed end, the probe is arranged in a T shape, the fixed end is arranged with a larger cross section, the contact end is arranged with a smaller cross section, the fixed end is fixed on the circuit board, and the contact end passes through the probe hole and abuts against the elastic sheet.

7. The smoke alarm as claimed in claim 1, wherein the top cover is provided with a light guide hole corresponding to the indicator light on the optical labyrinth, and the light guide is inserted into the light guide hole.

8. The novel smoke alarm device as claimed in claim 7, wherein a light guide column clamping seat is arranged on the optical maze and located at the position of the indicator lamp, the light guide column clamping seat is provided with a jack with an opening, and one end of the light guide column inserted into the light guide column hole is inserted into the jack with the opening and clamped.

9. The smoke alarm as claimed in claim 2, wherein the base is provided with an open wiring port on the wall of the wiring groove, and the wall thickness of the open wiring port is smaller than the wall thickness of the wall of the other region of the wiring groove.