Alarm

Abstract

The utility model discloses an alarm, and relates to the field of alarm devices. The utility model relates to an alarm which comprises an alarm main body and a key, the alarm body comprises a shell, the shell is provided with a plurality of cantilevers arranged in the circumferential direction of the alarm, at least part of each cantilever can move relative to the shell in the axial direction of the alarm, and each cantilever is provided with a first connecting part. The area, located on the periphery of the cantilever, of the shell is provided with a plurality of first limiting parts corresponding to the first connecting parts. The key is provided with a pressing end and an extrusion end deviating from the pressing end, the extrusion end abuts against the cantilever, the extrusion end is provided with a plurality of second connecting parts and a plurality of second limiting parts, each second connecting part is connected with the corresponding first connecting part in a matched mode, and the second limiting parts are connected with the second connecting parts in a matched mode. And each second limiting part is in limiting fit with the corresponding first limiting part in the axial direction. The application at least can solve the problem that the key is inclined and even stuck.

Description

Technical Field

[0001] This application belongs to the technical field of alarm devices, and particularly relates to an alarm. Background Art

[0002] An alarm is used to emit an alarm signal in case of a fire to play a reminder role. Some current alarms have a self-check function or a reset function. When self-check or reset is required, the self-check button or the reset button can be pressed to implement the self-check or reset function of the alarm; in addition, it is required that pressing the self-check button or the reset button in any orientation can trigger the alarm to perform the self-check or reset function.

[0003] However, for the alarm in the related art, although the button can move relative to the alarm body when pressed, since the middle area of the button is connected to the alarm body, when pressing the edge area of the button, the button will tilt severely, and it is easy to occur that the button gets stuck, affecting the self-check or reset operation of the alarm. Summary of the Utility Model

[0004] The purpose of the embodiment of this application is to provide an alarm, which can at least solve the problems of button tilt and even jamming.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The embodiment of this application provides an alarm, including: an alarm main body and a button;

[0007] The alarm main body includes a housing, the housing is provided with a plurality of cantilevers arranged along the circumference of the alarm, at least part of each cantilever is movable relative to the housing along the axis of the alarm, each cantilever is provided with a first connecting portion, and a plurality of first limiting portions corresponding to the plurality of first connecting portions are respectively arranged in the area of the housing outside the cantilever;

[0008] The button has a pressing end and a pressing end facing away from the pressing end, the pressing end abuts against the cantilever, the pressing end is provided with a plurality of second connecting portions and a plurality of second limiting portions, each second connecting portion is connected in cooperation with the corresponding first connecting portion, and each second limiting portion is in axial limiting cooperation with the corresponding first limiting portion.

[0009] In the embodiments of the present application, by pressing the pressing end of the button against the cantilever and connecting the second connecting portion of the button with the first connecting portion provided on the cantilever, the connection between the button and the cantilever can be achieved, ensuring the stability and reliability of the connection between the button and the cantilever, so that when a force is applied to the cantilever through the button, the cantilever can move axially relative to the housing, facilitating the triggering of the self-check or reset switch of the alarm by the cantilever, thereby realizing the self-check or reset function of the alarm; through the limiting cooperation between the first limiting portion and the second limiting portion, the button can be limited axially, making the button not easily separated from the housing. Moreover, in the case of the cooperation between multiple first limiting portions and multiple second limiting portions, when a pressing force is applied to the non-central area (such as the edge area, etc.) of the pressing end to make the button form a seesaw, the limiting cooperation between the first limiting portion and the second limiting portion on the side opposite to the pressing area can ensure that the button does not tilt or shake relative to the housing, thereby ensuring the stability of the button and preventing the situation of jamming caused by a large tilt or shake amplitude of the button, and further enabling the normal use of the button. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the alarm disclosed in the embodiments of the present application;

[0011] Figure 2 is a schematic cross-sectional view of the alarm disclosed in the embodiments of the present application;

[0012] Figure 3 is a schematic structural diagram of the button disclosed in the embodiments of the present application;

[0013] Figure 4 is a first schematic structural diagram of the alarm main body disclosed in the embodiments of the present application;

[0014] Figure 5 is a second schematic structural diagram of the alarm main body disclosed in the embodiments of the present application;

[0015] Figure 6 is a first schematic structural diagram of the concave housing disclosed in the embodiments of the present application;

[0016] Figure 7 is a second schematic structural diagram of the concave housing disclosed in the embodiments of the present application;

[0017] Figure 8 is a schematic structural diagram of the mounting member disclosed in the embodiments of the present application.

[0018] Description of the Reference Numerals:

[0019] 10 - Alarm main body;

[0020] 11 - Housing; 11a - Concave housing; 11b - Cover; 111 - Cantilever; 112 - First connection part; 1121 - First inclined surface; 113 - First limiting part; 114 - Through hole; 1141 - Hole wall; 115 - First boss; 1151 - Card slot; 116 - Avoidance groove; 117 - Third limiting part; 118 - Third connection part; 119 - Elastic buckle;

[0021] 12 - Alarm circuit;

[0022] 13 - Sensor assembly;

[0023] 14 - Sound - emitting device;

[0024] 15 - Light - emitting device;

[0025] 20 - Button; 21 - Pressing disk; 211 - Pressing end; 22 - Extrusion ring; 221 - Extrusion end; 23 - Connecting piece; 24 - Second connection part; 241 - Clamping projection; 242 - Second inclined surface; 25 - Second limiting part; 26 - Second boss; 27 - Fourth limiting part;

[0026] 30 - Mounting part; 31 - Fourth connection part; 32 - Fixing hole;

[0027] M - Flow channel space; N - Connecting space; P - Collection space. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0030] Next, the embodiments of the present application will be described in detail in conjunction with the accompanying drawings through specific embodiments and their application scenarios.

[0031] Refer to Figures 1 to 8, embodiments of the present application disclose an alarm for issuing an alarm in the event of an abnormality to serve as a warning. Among them, the alarm can be a smoke detector, a flame detector, a gas leakage detector, etc. Of course, it can also be other types of alarms, which are not specifically limited here.

[0032] Considering that after the alarm has been operating for a period of time, problems such as alarm failures and reduced sensitivity are likely to occur. To ensure that the alarm can work properly for a long time, the alarm can be maintained regularly. Specifically, it can include regularly self-checking or resetting the alarm to ensure that the alarm that has been operating for a period of time can also determine whether there is a fault through self-checking, or restore the function of the alarm through resetting, so as to ensure that the alarm can be restored to its initial working state to prevent its normal operation from being affected due to faults or reduced sensitivity.

[0033] The disclosed alarm includes an alarm main body 10 and a key 20, as Figure 1 shown. Among them, the alarm main body 10 is used to detect the external environment and issue an alarm signal in the event of an abnormality. By applying a force to the key 20, the alarm can be self-checked or reset to ensure the normal operation of the alarm.

[0034] Exemplarily, the alarm main body 10 can have a trigger switch for self-checking or resetting. By pressing the key 20, the trigger switch can be turned on, thereby realizing the self-checking or resetting of the alarm.

[0035] It should be noted here that the specific working principle of the alarm main body 10 and the related structures for realizing the alarm principle can all refer to the prior art and will not be elaborated in detail here.

[0036] Referring to Figure 4 , in some embodiments, the alarm main body 10 can include a housing 11. Through the housing 11, some components of the alarm main body 10 can be accommodated, and the housing 11 plays a protective role to prevent external factors from damaging some components of the alarm main body 10.

[0037] To withstand the pressing force from the key 20, the housing 11 can be provided with a plurality of cantilevers 111, as Figure 6 and Figure 7 shown. The plurality of cantilevers 111 can be arranged circumferentially on the housing 11 along the alarm, and at least part of each cantilever 111 is axially movable relative to the housing 11 along the alarm. Based on this, through the movement of at least part of each cantilever 111 relative to the housing 11, it is used to contact the corresponding trigger switch of the alarm main body 10 to facilitate triggering the trigger switch, thereby realizing the self-checking or resetting of the alarm.

[0038] Exemplarily, the cantilever 111 can be a strip-shaped structure, such as an arc-shaped strip structure, etc.; when the cantilever 111 is subjected to a force, it can also produce local deformation. One end of the cantilever 111 or a part near one end is fixedly connected to the housing 11, and the other end is a free end and can move relative to the housing 11. Thus, when a pressing force from the button 20 is applied to the area of the cantilever 111 near the free end, the free end can move axially relative to the housing 11 to facilitate triggering the trigger switch through the free end.

[0039] In addition, when the button 20 is subjected to a pressing force, the button 20 can drive at least one cantilever 111 to deform, and accordingly trigger at least one trigger switch.

[0040] Refer to Figure 3 , in some embodiments, the button 20 can have a pressing end 211 and a squeezing end 221. The pressing end 211 is used to bear the pressing force from the operator, and the squeezing end 221 is used to squeeze the cantilever 111, and the pressing end 211 and the squeezing end 221 are arranged in opposite directions, that is, the squeezing end 221 is located at a position away from the pressing end 211. Thus, the pressing force is borne by the pressing end 211 and finally transmitted to the cantilever 111 through the squeezing end 221, so that the cantilever 111 deforms and its free end moves axially relative to the housing 11 of the alarm to facilitate triggering the trigger switch through the cantilever 111.

[0041] To realize the connection between the button 20 and the cantilever 111, each cantilever 111 can be provided with a first connecting portion 112, such as Figure 6 and Figure 7 shown; correspondingly, as Figure 3 shown, the squeezing end 221 can be provided with a plurality of second connecting portions 24, and each second connecting portion 24 is cooperatively connected with the corresponding first connecting portion 112. At the same time, the squeezing end 221 is also in contact with the cantilever 111. Based on this setting, a reliable connection between the squeezing end 221 of the button 20 and the cantilever 111 can be realized. On the one hand, the pressing force can be transmitted to the cantilever 111 to cause the cantilever 111 to deform, and on the other hand, it can prevent the button 20 from detaching from the cantilever 111 and falling. Therefore, the stable and reliable connection between the button 20 and the cantilever 111 is ensured, and the self-check or reset requirements of the alarm are met.

[0042] It should be noted here that the cooperative connection method between the first connecting portion 112 and the second connecting portion 24 can be a snap connection, a plug connection, a hook connection, a screw connection, etc. Of course, it can also be other methods, as long as stable and reliable connection can be achieved, and the specific form is not limited. Of course, for easy disassembly and assembly, the first connecting portion 112 and the second connecting portion 24 can be detachably connected.

[0043] Since the button 20 is respectively connected to a plurality of cantilevers 111, when the non-central area of the button 20, such as the area near the edge, is pressed, at least one of the cantilevers 111 corresponding to this area will be deformed. In this way, during this process, the button 20 will be greatly tilted or shaken, and it is easy to occur that the button 20 is stuck by the housing 11, ultimately resulting in the failure of the alarm to achieve normal self-check or reset functions.

[0044] To solve the problems of tilting and jamming of the button 20, in the embodiments of the present application, as Figure 6 and Figure 7 shown, the housing 11 may further be provided with a plurality of first limiting portions 113, and the plurality of first limiting portions 113 are respectively located in the peripheral areas of the cantilevers 111 and are respectively arranged corresponding to the plurality of first connecting portions 112. Exemplarily, the first limiting portion 113 may be located outside the corresponding first connecting portion 112. Of course, the first limiting portion 113 and the first connecting portion 112 may also be arranged in other ways, which are not specifically limited herein.

[0045] Correspondingly, the pressing end 221 may further be provided with a plurality of second limiting portions 25, and each second limiting portion 25 and the corresponding first limiting portion 113 may be in axial limiting cooperation in the alarm. Based on this setting, the corresponding second limiting portion 25 can be axially limited by the first limiting portion 113, so that when the button 20 is subjected to an unbalanced pressing force, a certain axial limiting effect can also be exerted on the local part of the button 20 to prevent the button 20 from tilting or shaking greatly.

[0046] It should be noted here that since the pressing end 221 of the button 20 is respectively connected to a plurality of cantilevers 111, when a pressing force is applied to a local part of the button 20, the cantilever 111 corresponding to this area will be deformed, while the cantilevers 111 in other areas will not be deformed or have a smaller degree of deformation, resulting in the button 20 being greatly tilted or shaken. In this case, the button 20 can be regarded as a seesaw with the deformed cantilever 111 as the fulcrum. Thus, the second limiting portion 25 of the button 20 far from the pressing place will approach the corresponding first limiting portion 113. Under the limiting effect of the first limiting portion 113 on the corresponding second limiting portion 25, the button 20 can be effectively prevented from tilting or shaking greatly, thereby ensuring the stability and reliability of the button 20 and preventing the button 20 from getting stuck.

[0047] Exemplarily, the second limiting portion 25 may be located outside the corresponding second connecting portion 24 so that the second limiting portion 25 can be arranged corresponding to the first limiting portion 113. In some more specific embodiments, the second limiting portion 25 may be provided on the outer end face of the second connecting portion 24. Of course, it may also be provided at other positions, which are not specifically limited herein.

[0048] Based on the above settings, in the embodiments of the present application, by abutting the pressing end 221 of the button 20 against the cantilever 111 and connecting the second connecting portion 24 of the button 20 with the first connecting portion 112 provided on the cantilever 111, the connection between the button 20 and the cantilever 111 can be realized, ensuring the stability and reliability of the connection between the button 20 and the cantilever 111, so that when a force is applied to the cantilever 111 through the button 20, the cantilever 111 can move axially relative to the housing 11, facilitating the triggering of the self-check or reset switch of the alarm by the cantilever 111, thereby realizing the self-check or reset function of the alarm; through the limiting cooperation between the first limiting portion 113 and the second limiting portion 25, the button 20 can be limited axially, making the button 20 not easily separated from the housing 11. Moreover, when multiple first limiting portions 113 cooperate with multiple second limiting portions 25, by applying a pressing force to a non-central area (such as the edge area, etc.) of the pressing end 211 to form a seesaw of the button 20, the limiting cooperation between the first limiting portion 113 and the second limiting portion 25 on the side opposite to the pressing area can ensure that the button 20 will not tilt or shake relative to the housing 11, thus ensuring the stability of the button 20 and preventing the situation of jamming caused by a large tilt or shake amplitude of the button 20, and further enabling the normal use of the button 20.

[0049] It should be noted here that when the number of the first limiting portion 113 and the second limiting portion 25 that are mutually limited and cooperate is large enough, it can cover the entire circumferential range or most of the range of the alarm. In this way, no matter from which direction the button 20 is pressed, it can be ensured that the button 20 will not tilt or shake relative to the housing 11. Therefore, the stability of the button 20 can be ensured.

[0050] In some embodiments, the button 20 is detachably connected to the alarm main body 10, facilitating the disassembly and assembly of the button 20, and thus facilitating the maintenance or cleaning of the alarm main body 10. Among them, the button 20 and the alarm main body 10 can be detachably connected by a rotating method, which is convenient for disassembly and assembly and can also ensure the stability and reliability of the connection. Based on this setting, it is convenient to clean and maintain some components such as detection elements inside the alarm main body 10.

[0051] Among them, the first connecting portion 112 and the second connecting portion 24 can be cooperatively connected or disconnected by moving relatively in the circumferential direction of the alarm; in addition, the first limiting portion 113 and the second limiting portion 25 can also be cooperatively connected or disconnected by moving relative to each other in the circumferential direction of the alarm. Based on this, the connection or separation of the button 20 from the housing 11 and the cantilever 111 can be facilitated, thereby improving the maintenance efficiency of the alarm.

[0052] ReferenceFigure 6 and Figure 7 , in some embodiments, one end of the housing 11 along the axial direction of the alarm can be provided with a through hole 114, and the through hole 114 can communicate with the inner cavity of the housing 11 to facilitate the communication between the inner cavity of the housing 11 and the outside. Exemplarily, the alarm can be used to detect gases in the external environment, such as smoke, carbon monoxide, etc. In this case, the external gas can enter the inner cavity of the housing 11 through the through hole 114 to facilitate the detection of the gas and issue an alarm when preset conditions are met. For example, an alarm is issued when the detected gas concentration reaches a preset concentration.

[0053] The cantilever 111 is connected to the hole wall 1141 of the through hole 114 and has a free end spaced from the hole wall 1141. Based on this, by connecting the cantilever 111 to the hole wall 1141, the stability of the cantilever 111 can be ensured, and an extrusion force can be applied to the free end of the cantilever 111 through the button 20 to enable the free end to move along the axial direction of the alarm. It should be noted here that the area of each cantilever 111 far from the free end can be fixed to the hole wall 1141, such as by welding, bonding, riveting, screwing, clamping, plugging, etc. Of course, each cantilever 111 can also be an integral structure with the housing 11, that is, during the manufacturing process of the housing 11, a plurality of cantilevers 111 are formed together.

[0054] In some embodiments, the first connecting portion 112 can protrude from the end face of the cantilever 111 facing the hole wall 1141, that is, at least a part of the first connecting portion 112 extends into the spaced space between the cantilever 111 and the hole wall 1141; correspondingly, the second connecting portion 24 is located between the cantilever 111 and the hole wall 1141. Based on this, through the arrangement forms of the cantilever 111 and the hole wall 1141, and the second connecting portion 24 and the cantilever 111, an accommodation space can be formed to accommodate the second connecting portion 24, and the end face of the cantilever 111 facing the hole wall 1141 can also play a limiting role on the second connecting portion 24 to prevent the button 20 from moving towards the center of the alarm in a plane perpendicular to the axial direction.

[0055] Moreover, the end face of the second connecting portion 24 and the end face of the extrusion end 221 are axially spaced apart, and the first connecting portion 112 is located between the second connecting portion 24 and the end face of the extrusion end 221 to facilitate providing space for assembling the first connecting portion 112. In this way, the first connecting portion 112 can limit the second connecting portion 24 axially to prevent the button 20 from detaching from the cantilever 111.

[0056] Exemplarily, the first connecting portion 112 can be a convex block structure, and the second connecting portion 24 can be a strip-shaped structure extending in the circumferential direction. Of course, it is not limited to this form, and they can also be other shapes as long as they can achieve mating connection.

[0057] To further achieve the limiting effect on the button 20 to prevent the button 20 from moving in a plane perpendicular to the axial direction, in the embodiment of the present application, as Figure 6 shown, a first boss 115 may be provided on the end face of the cantilever 111 facing the extrusion end 221, and the first boss 115 is located in the edge area of the cantilever 111 close to the hole wall 1141. In addition, the first connecting portion 112 may be provided on the first boss 115, so that the height of the first connecting portion 112 in the axial direction can be increased, thereby providing a larger space for assembling the second connecting portion 24.

[0058] Exemplarily, the first boss 115 and the cantilever 111 may be an integral structure, or the first boss 115 is fixed to the cantilever 111. The first connecting portion 112 and the first boss 115 may be an integral structure. Of course, the first connecting portion 112 may also be fixed to the first boss 115. In addition, the first connecting portion 112 is located on the end face of the first boss 115 facing the hole wall 1141.

[0059] Correspondingly, as Figure 3 shown, a second boss 26 may also be provided on the end face of the extrusion end 221, and the second boss 26 abuts against the cantilever 111. In this way, the button 20 can apply an extrusion force to the cantilever 111 through the second boss 26 to cause the cantilever 111 to deform. Exemplarily, the second boss 26 and the extrusion end 221 may be an integral structure, or the second boss 26 is fixed to the extrusion end 221.

[0060] In addition, the second connecting portion 24 is provided at intervals on the outside of the second boss 26, and the first boss 115 is provided between the second boss 26 and the second connecting portion 24. Based on this, the limiting effect on the button 20 in a plane perpendicular to the axial direction can be achieved by the abutment of the first boss 115 and the second boss 26, or the abutment of the first boss 115 and the second connecting portion 24, so as to prevent the button 20 from moving randomly in a plane perpendicular to the axial direction, thereby ensuring the stability and reliability of the button 20.

[0061] To prevent the button 20 from being accidentally separated from the cantilever 111, a card slot 1151 may be provided on the end face of the first boss 115 facing the hole wall 1141, as Figure 6 shown, and the card slot 1151 and the first connecting portion 112 are arranged in a circumferential dislocation along the alarm. Exemplarily, when the button 20 is connected to the alarm main body 10 in a rotating manner, the card slot 1151 may be located at the rear end of the first connecting portion 112.

[0062] Correspondingly, a card projection 241 may be provided on the end face of the second connecting portion 24 facing the extrusion end 221, as Figure 3 shown, and the card projection 241 is in snap-fit with the card slot 1151.

[0063] Based on the above settings, when the first connecting portion 112 is cooperatively connected with the second connecting portion 24, the clamping protrusion 241 is in clamping fit with the clamping groove 1151, thereby effectively preventing the accidental disengagement of the first connecting portion 112 and the second connecting portion 24, and ensuring the stability and reliability of the assembly of the button 20.

[0064] Reference Figure 7 , in some embodiments, a first inclined surface 1121 is provided on one side of the end of the first connecting portion 112 facing away from the clamping groove 1151 (i.e., the rear end) and facing the second connecting portion 24; correspondingly, as Figure 3 shown, a second inclined surface 242 may be provided at the front end of the second connecting portion 24, and the second inclined surface 242 is in guiding fit with the first inclined surface 1121. Based on this, during the process of rotatably installing the button 20 onto the alarm main body 10, as the button 20 rotates, the second inclined surface 242 will contact the first inclined surface 1121 and play a guiding role, so that the second connecting portion 24 can smoothly move into the accommodation space surrounded by the cantilever 111, the hole wall 1141, and the first connecting portion 112; when the second connecting portion 24 moves into place, the clamping protrusion 241 is engaged with the clamping groove 1151 to ensure the stability and reliability of the connection between the button 20 and the cantilever 111.

[0065] Of course, the front end surface of the clamping protrusion 241 can also be a part of the first inclined surface 1121, and the rear end surface of the clamping protrusion 241 can also be designed as an inclined surface to facilitate the separation of the button 20 from the cantilever 111 when disassembling the button 20.

[0066] In some embodiments, the first limiting portion 113 may be a limiting groove, and the limiting groove may be provided on the hole wall 1141 of the through hole 114. In this way, when the first connecting portion 112 is cooperatively connected with the second connecting portion 24, the second limiting portion 25 can be provided in the limiting groove to axially limit the second limiting portion 25 through the limiting groove.

[0067] Exemplarily, the second limiting portion 25 may be a limiting protrusion, and the limiting protrusion is adapted to the limiting groove.

[0068] In addition, the second limiting portion 25 may be provided on the end surface of the second connecting portion 24 facing the hole wall 1141. In this way, when the second connecting portion 24 is located between the cantilever 111 and the hole wall 1141, the second limiting portion 25 can be in limiting fit with the limiting groove provided on the hole wall 1141.

[0069] To facilitate the cooperation between the second limiting portion 25 and the first limiting portion 113, the hole wall 1141 may further be provided with an avoidance groove 116, as Figure 6 and Figure 7As shown, the avoidance groove 116 and the limiting groove are arranged circumferentially offset from each other along the circumference of the alarm and are connected and communicated. In this way, the second limiting portion 25 can move from the avoidance groove 116 to the limiting groove.

[0070] Specifically, when installing the button 20, first move the button 20 axially along the alarm towards the housing 11. As the button 20 moves, the second connecting portion 24 is moved into the space between the cantilever 111 and the hole wall 1141. Correspondingly, the second limiting member is moved into the avoidance groove 116. Subsequently, rotate the button 20 so that the second connecting portion 24 can be moved into the accommodation space surrounded by the cantilever 111, the hole wall 1141, and the first connecting portion 112 to achieve the mating connection between the second connecting portion 24 and the first connecting portion 112. Moreover, the cantilever 111 can limit the second connecting portion 24. Correspondingly, the second limiting member is moved from the avoidance groove 116 into the limiting groove to axially limit the second limiting member through the limiting groove.

[0071] Refer to Figure 6 and Figure 7 , in some embodiments, the housing 11 may further be provided with a third limiting portion 117. Correspondingly, as Figure 3 shown, the end face of the extrusion end 221 may further be provided with a fourth limiting portion 27. When the first connecting portion 112 and the second connecting portion 24 are in mating connection, the fourth limiting portion 27 and the third limiting portion 117 are in limiting cooperation.

[0072] Based on the above settings, through the limiting cooperation between the third limiting portion 117 and the fourth limiting portion 27, the button 20 can be further limited to prevent the button 20 from detaching from the housing 11, thereby further ensuring the stability and reliability of the connection between the button 20 and the housing 11.

[0073] It should be noted here that through the cooperation between the third connecting portion 118 and the fourth connecting portion 31, and the cooperation between the convexity 241 and the slot 1151, the stability and reliability of the connection between the button 20 and the housing 11 can be maximally ensured.

[0074] Continue to refer to Figure 3, in some embodiments, the button 20 may include a pressing disc 21, a squeezing ring 22 and a plurality of connecting pieces 23. Among them, the pressing disc 21 and the squeezing ring 22 are arranged at intervals along the axial direction of the alarm, and the plurality of connecting pieces 23 are arranged circumferentially along the alarm and are respectively connected between the pressing disc 21 and the squeezing ring 22, so as to ensure the connection strength and stiffness between the pressing disc 21 and the squeezing ring 22. Among them, one end of the pressing disc 21 facing away from the squeezing ring 22 is the pressing end 211, and one end of the squeezing ring 22 facing away from the pressing disc 21 is the squeezing end 221. Based on this, the pressing end 211 can bear the pressing force from the operator, and the pressing force on the pressing disc 21 can be transmitted to the squeezing ring 22 through the plurality of connecting pieces 23, and the squeezing end 221 of the squeezing ring 22 can exert a squeezing effect on the cantilever 111 to cause the cantilever 111 to deform.

[0075] Optionally, the second connecting portion 24, the second boss 26 and the fourth limiting portion 27 can all be arranged on the end face of the squeezing ring 22 facing away from the pressing disc 21. In addition, the second limiting portion 25 is arranged on the outer side surface of the second connecting portion 24 and protrudes from the outer ring surface of the squeezing ring 22 to prevent the squeezing ring 22 from interfering with the cooperation between the second limiting portion 25 and the first limiting portion 113.

[0076] Reference Figure 2 , when the button 20 is installed on the alarm main body 10, a collection space P can be formed between the pressing disc 21 and the end face of the housing 11 to facilitate collecting the external gas from all directions to the collection space P; a communication space N is jointly formed among the pressing disc 21, the squeezing ring 22 and two adjacent connecting pieces 23, and the communication space N is used for transporting gas; a flow channel space M is formed between the pressing disc 21 and the squeezing ring 22, and the flow channel space M is used for transporting gas into the housing 11.

[0077] In the embodiments of the present application, the collection space P is communicated with the flow channel space M through a plurality of communication spaces N, and the flow channel space M is communicated with the inner cavity of the housing 11. Based on this, the external gas can be better aggregated through the collection space P, and finally transported to the inner cavity of the housing 11 through the communication space N and the flow channel space M in sequence, so as to facilitate detecting, analyzing and judging whether to issue an alarm for the gas. In this way, the gas collected in all directions can be kept consistent, and to a certain extent, the sensitivity and performance of the alarm can be improved. It should be noted here that the principles and processes of the above detection, analysis and judgment of gas can all refer to the prior art.

[0078] To realize the installation of the alarm, the alarm may further include a mounting member 30, such as Figure 1 and Figure 2As shown, the mounting member 30 can be mounted to the mounting body, wherein the mounting body can be a wall, a ceiling, etc. In addition, the mounting member 30 and the mounting body can be detachably connected or fixedly connected, such as screwing, welding, bonding, riveting, clamping, plugging, etc.

[0079] Optionally, the mounting member 30 may be provided with a fixing hole 32, such as Figure 8 As shown, a locking member may be passed through the fixing hole 32 to fix the mounting member 30 to the mounting body through the locking member.

[0080] In addition, the mounting member 30 and the housing 11 are detachably connected, so that the alarm body 10 can be easily disassembled and assembled during the process of fixing and installing the alarm.

[0081] Among them, the end of the housing 11 away from the button 20 can be provided with a plurality of third connecting parts 118 along the circumference of the alarm, such as Figure 5 As shown; accordingly, Figure 8 As shown, a plurality of fourth connection parts 31 can be provided on the mounting member 30 along the circumference of the alarm, and each third connection part 118 is detachably connected to the corresponding fourth connection part 31 by rotation. Based on this, the mounting member 30 and the shell 11 can be easily disassembled and assembled, thereby facilitating the disassembly and assembly of the alarm.

[0082] In some embodiments, the third connection portion 118 may be a protrusion, and the fourth connection portion 31 may have a slide groove. The third connection portion 118 and the fourth connection portion 31 may be rotatably installed or disassembled by sliding fit between the protrusion and the slide groove.

[0083] In order to improve the hand feel during the installation of the alarm body 10, a plurality of elastic buckles 119 may be provided on the end of the housing 11 away from the button 20. Figure 5 As shown, a plurality of elastic buckles 119 are arranged along the circumference of the alarm, so that when the mounting member 30 and the shell 11 are not installed in place, the elastic buckles 119 elastically abut against the corresponding fourth connecting portion 31; when the mounting member 30 and the shell 11 are installed in place, the elastic buckles 119 are separated from the corresponding fourth connecting portion 31.

[0084] Based on the above settings, when the elastic buckle 119 is elastically abutted against the corresponding fourth connecting part 31, a friction force can be generated between the elastic buckle 119 and the corresponding fourth connecting part 31, thereby increasing the damping effect of the relative rotation between the shell 11 and the mounting part 30. Under the damping effect, the rotation feel of the alarm body 10 can be made better.

[0085] When the elastic buckle 119 is separated from the corresponding fourth connecting portion 31, the elastic buckle 119 is elastically reset, so that the operator can feel obvious feedback, such as feedback in the form of vibration, etc., so that the operator can know that the alarm main body 10 has rotated in place, thereby improving the operation experience.

[0086] Exemplarily, the elastic buckle 119 can be an elastic strip structure, and bumps can be provided on the surface of the elastic strip structure. One end of the elastic strip is fixed to the housing 11, and the other end is a free end. The bumps can be provided at the free end to abut against the fourth connecting portion 31 under the elastic force.

[0087] Reference Figure 4 , in some embodiments, the alarm main body 10 may further include an alarm circuit 12 and a sensor assembly 13 electrically connected to the alarm circuit 12. Among them, both the alarm circuit 12 and the sensor assembly 13 can be provided in the housing 11 to install the alarm circuit 12 and the sensor assembly 13 through the housing 11. Based on this, the sensor assembly 13 can detect parameters in the external environment, such as smoke concentration, carbon monoxide concentration, temperature, etc., and send the detected parameters to the alarm circuit 12 for analysis and judgment by the alarm circuit 12 to determine whether an abnormal situation occurs. It should be noted here that the specific structure and working principle of the alarm circuit 12 can refer to the prior art and will not be elaborated in detail here.

[0088] Exemplarily, the alarm circuit 12 can be provided in the housing 11 to play a protective role through the housing 11; the sensor assembly 13 can be provided in the housing 11, and its detection end can extend out of the housing 11 to facilitate the detection of the external environment.

[0089] Among them, the sensor assembly 13 can include at least one of a smoke sensor and a carbon monoxide sensor, and a temperature sensor. The specific inclusion methods are as follows: the smoke sensor and the temperature sensor are used in combination to improve the alarm accuracy and reduce the false alarm rate through the combination of smoke detection and temperature detection; the carbon monoxide sensor and the temperature sensor are used in combination to improve the alarm accuracy and reduce the false alarm rate through the combination of carbon monoxide detection and temperature detection; the smoke sensor, the carbon monoxide sensor and the temperature sensor are used in combination to improve the alarm accuracy and reduce the false alarm rate through the combination of smoke detection, carbon monoxide detection and temperature detection. Of course, there can also be other detection methods, which are not specifically limited here.

[0090] Based on the above settings, the false alarm rate can be reduced through the mutual verification of at least two sensors; in addition, the application of at least two sensors can also be applicable to different scenarios to improve the applicability of the alarm.

[0091] Continue to refer toFigure 4 In some embodiments, the alarm body 10 may further include a sounding device 14, which is electrically connected to the alarm circuit 12, so that when the alarm circuit 12 determines that an abnormal situation occurs, control information is sent to the sounding device 14, so that the sounding device 14 sounds an alarm. Exemplarily, the sounding device 14 may be a buzzer.

[0092] The sound-generating device 14 may be disposed in the shell 11 , and a sound hole may be disposed on the end surface of the shell 11 . The sound-generating device 14 and the sound hole are disposed correspondingly to each other so as to send an alarm to the outside through the sound hole.

[0093] In addition, the alarm body 10 may further include a light emitting device 15, which is electrically connected to the alarm circuit 12, so that when the alarm circuit 12 determines that an abnormal situation occurs, control information is sent to the light emitting device 15 to light up the light emitting device 15.

[0094] The light emitting device 15 may be disposed in the housing 11 , and a lamp hole may be disposed on the end surface of the housing 11 . The light emitting device 15 is disposed corresponding to the lamp hole so as to emit light of the light emitting device 15 to the outside through the lamp hole.

[0095] In some embodiments, the alarm body 10 may further include a power supply device, which is disposed in the housing 11 and electrically connected to the alarm circuit 12 to provide power to the alarm body 10. Exemplarily, the power supply device may be a battery, a storage battery, or the like.

[0096] refer to Figure 5 In some embodiments, the housing 11 may include a concave shell 11a and a cover 11b, the housing 11 of the concave shell 11a is provided with a through hole 114, an end of the concave shell 11a away from the through hole 114 is provided with an opening, and the cover 11b is detachably mounted to the opening to facilitate blocking the opening, so as to enclose the inner cavity of the housing 11. Exemplarily, the cover 11b and the concave shell 11a may be connected by snap fasteners to facilitate assembly and disassembly.

[0097] The alarm circuit 12, sensor assembly 13, sound-generating device 14, light-emitting device 15, power supply device, etc. can all be arranged in the concave shell 11a and blocked by the cover body 11b. The detachable connection between the cover body 11b and the concave shell 11a facilitates disassembly and assembly, thereby facilitating the maintenance or replacement of the alarm circuit 12, sensor assembly 13, sound-generating device 14, light-emitting device 15, power supply device, etc.

[0098] Among them, the third connecting portion 118 , elastic buckle 119 and other structures mentioned above can be arranged on the cover body 11 b , and can be located in the edge area of ​​the cover body 11 b , so as to realize the detachable installation of the mounting member 30 .

[0099] In addition, the cover 11b may also be provided with an avoidance hole through which the electrical device can be installed into the inner cavity of the housing 11, so as to facilitate the disassembly and assembly of the electrical device through the avoidance hole.

[0100] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. An alarm, characterized in that: include: Alarm body (10) and button (20); The alarm body (10) comprises a shell (11), the shell (11) being provided with a plurality of cantilevers (111) arranged along the circumference of the alarm, at least a portion of each cantilever (111) being movable relative to the shell (11) along the axial direction of the alarm, each cantilever (111) being provided with a first connecting portion (112), and a region of the shell (11) located at the periphery of the cantilever (111) being provided with a plurality of first limiting portions (113) respectively arranged corresponding to the plurality of first connecting portions (112); The button (20) comprises a pressing end (211) and an extrusion end (221) which is away from the pressing end (211); the extrusion end (221) is in contact with the cantilever (111); the extrusion end (221) is provided with a plurality of second connecting parts (24) and a plurality of second limiting parts (25); each of the second connecting parts (24) is cooperatively connected with the corresponding first connecting part (112); each of the second limiting parts (25) is cooperatively connected with the corresponding first limiting part (113) at the axial upper limit.

2. The alarm according to claim 1, characterized in that: A through hole (114) is provided at one end of the housing (11) along the axial direction; the cantilever (111) is connected to a hole wall (1141) of the through hole (114) and has a free end spaced apart from the hole wall (1141); The first connecting portion (112) protrudes from an end surface of the cantilever (111) facing the hole wall (1141); The second connecting portion (24) is located between the cantilever (111) and the hole wall (1141), and the second connecting portion (24) and the end surface of the extrusion end (221) are arranged at intervals along the axial direction, and the first connecting portion (112) is located between the second connecting portion (24) and the end surface of the extrusion end (221).

3. The alarm device according to claim 2, characterized in that: A first boss (115) is provided on the end surface of the cantilever (111) facing the extrusion end (221); the first boss (115) is located at an edge of the cantilever (111) close to the hole wall (1141); and the first connecting portion (112) is provided on the first boss (115); The end surface of the extrusion end (221) is also provided with a second boss (26), the second boss (26) is in abutment with the cantilever (111), the second connecting portion (24) is arranged at intervals on the periphery of the second boss (26), and the first boss (115) is arranged between the second boss (26) and the second connecting portion (24).

4. The alarm device according to claim 3, characterized in that: The end surface of the first boss (115) facing the hole wall (1141) is provided with a clamping groove (1151), and the clamping groove (1151) and the first connecting portion (112) are staggered in the circumferential direction; The end surface of the second connecting portion (24) facing the extrusion end (221) is provided with a locking protrusion (241), and the locking protrusion (241) is locked and matched with the locking groove (1151).

5. The alarm device according to claim 2, characterized in that: The hole wall (1141) is provided with an avoidance groove (116) and a limiting groove serving as the first limiting portion (113), the avoidance groove (116) and the limiting groove being staggered in the circumferential direction and being in communication with each other; The second limiting portion (25) is arranged on the end surface of the second connecting portion (24) facing the hole wall (1141), and the second limiting portion (25) can move from the avoidance groove (116) to the limiting groove.

6. The alarm device according to claim 1, characterized in that: The housing (11) is provided with a third limiting portion (117), and the end surface of the extrusion end (221) is also provided with a fourth limiting portion (27); When the first connection portion (112) is connected in a cooperative manner with the second connection portion (24), the fourth limiting portion (27) is cooperatively limited with the third limiting portion (117).

7. The alarm device according to any one of claims 1 to 6, characterized in that: The button (20) is detachably connected to the alarm body (10) by means of rotation.

8. The alarm device according to any one of claims 1 to 6, characterized in that: The button (20) comprises a pressing plate (21), a pressing ring (22) and a plurality of connecting pieces (23); The pressing plate (21) and the extrusion ring (22) are arranged at intervals along the axial direction, a plurality of connecting pieces (23) are arranged along the circumferential direction and are respectively connected between the pressing plate (21) and the extrusion ring (22), an end of the pressing plate (21) away from the extrusion ring (22) is the pressing end (211), and an end of the extrusion ring (22) away from the pressing plate (21) is the extrusion end (221); A flow channel space (M) is formed between the pressing plate (21) and the extrusion ring (22); a connecting space (N) is formed between the pressing plate (21), the extrusion ring (22) and two adjacent connecting pieces (23); and a collecting space (P) is formed between the pressing plate (21) and the housing (11); The collecting space (P) is connected to the flow channel space (M) through a plurality of the communicating spaces (N), and the flow channel space (M) is connected to the inner cavity of the shell (11).

9. The alarm device according to claim 1, characterized in that: The alarm device further comprises a mounting member (30), a plurality of third connection portions (118) are provided along the circumferential direction at one end of the housing (11) away from the button (20), and a plurality of fourth connection portions (31) are provided along the circumferential direction; Each of the third connecting parts (118) is detachably connected to the corresponding fourth connecting part (31) by means of rotation.

10. The alarm device according to claim 9, characterized in that: A plurality of elastic buckles (119) are further provided at one end of the housing (11) away from the button (20), and the plurality of elastic buckles (119) are arranged along the circumferential direction; When the mounting member (30) and the housing (11) are not installed in place, the elastic buckle (119) elastically abuts against the corresponding fourth connecting portion (31); When the mounting member (30) and the housing (11) are mounted in place, the elastic buckle (119) is separated from the corresponding fourth connecting portion (31).

11. The alarm device according to claim 1, characterized in that: The alarm body (10) further comprises an alarm circuit (12) and a sensor assembly (13) electrically connected to the alarm circuit (12); The alarm circuit (12) and the sensor assembly (13) are both arranged in the housing (11); the sensor assembly (13) comprises at least one of a smoke sensor and a carbon monoxide sensor, and a temperature sensor.

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