Manual alarm button

Abstract

The utility model relates to the technical field of warning equipment, and provides a manual alarm button. The manual alarm button comprises a main shell, a protective cover, a key assembly and an elastic driving piece, the main shell is provided with a rotating side and a locking side which are opposite in the first direction and arranged at intervals, and the main shell is provided with an assembling groove in the locking side. The protective cover is rotationally connected to the rotating side; the elastic driving piece is pre-pressed between the protective cover and the main shell and is used for applying an acting force far away from the main shell to the protective cover; at least part of the key assembly is contained in the assembling groove and comprises a pressing plate and an actuating block, the pressing plate and the groove wall of the assembling groove jointly define a guide cavity, one part of the actuating block is inserted into the guide cavity, and the other part of the actuating block is matched with the protective cover in a buckled mode; the actuating block can move in the guide cavity in a reciprocating mode so that the actuating block and the protective cover can be locked or unlocked. The manual alarm button provided by the utility model is convenient for a user to open in time and is also beneficial to repeated opening and closing for multiple times, so that the alarm efficiency and timeliness of personnel are improved.

Description

Technical Field

[0001] The present application relates to the technical field of alarm equipment, and in particular to a manual alarm button. Background Art

[0002] Manual call points are mostly used for fire alarms. When a fire is detected, personnel can manually press the button to report the fire. Due to their small size, easy installation, and timely response, manual call points are widely used. Currently, manual call points consist of several components: a protective cover, a button, a main housing, and a base. The protective cover provides protection against accidental touches and the ingress of foreign matter such as dust. Consequently, the protective cover is typically firmly attached to the main housing, requiring users to apply considerable force to release it, reducing the effectiveness of personnel alarms. Utility Model Content

[0003] Based on this, it is necessary to provide a manual alarm button that is convenient for users to open in time, and is also conducive to repeated opening and closing conveniently multiple times, thereby improving the efficiency and timeliness of personnel alarms.

[0004] A manual alarm button comprises a main shell, a protective cover, a button assembly and an elastic driving member; the main shell has a rotating side and a locking side which are opposite and spaced apart along a first direction, and the main shell is provided with an assembly groove on the locking side; the protective cover is rotatably connected to the rotating side; the elastic driving member is pre-pressed between the protective cover and the main shell, and is used to apply a force to the protective cover away from the main shell; the button assembly is at least partially accommodated in the assembly groove and comprises a pressure plate and an actuating block, the pressure plate and the groove wall of the assembly groove jointly enclose a guide cavity, a part of the actuating block is inserted in the guide cavity, and the other part is snap-fitted with the protective cover; wherein the actuating block can move back and forth in the guide cavity to lock or unlock with the protective cover.

[0005] It can be understood that since the button assembly is arranged on the main shell and engages with the protective cover, the connection between the protective cover and the main shell is satisfied. When the actuator block engages with the protective cover, the protective cover is closed relative to the main shell to protect the alarm structure in the main shell and avoid accidental touch. When an alarm operation is required, the actuator block is driven to move toward the guide cavity to unlock the protective cover. At this time, the protective cover rotates in the direction away from the main shell under the action of the elastic drive member to satisfy the opening of the protective cover. After use, the protective cover can be manually driven to rotate in the opposite direction and lock with the actuator block. Such a setting simplifies the structure and is easy to operate; and due to the reciprocating movement of the actuator block and the cooperation of the elastic drive member, it can be opened and closed repeatedly, thereby improving the efficiency and timeliness of personnel alarms.

[0006] In some embodiments, the button assembly further includes an elastic return member, which is disposed between the actuating block and the groove wall of the assembly groove and / or the pressure plate, and is used to apply a force to the actuating block toward the outside of the guide cavity.

[0007] In some embodiments, the groove wall of the assembly groove and / or the side of the pressure plate opposite to the actuating block is used as the first side wall; the first side wall and / or the actuating block are protruding with a boss, and the elastic return member is sleeved on the boss.

[0008] In some embodiments, the actuating block is capable of reciprocating in the guide cavity along a first direction.

[0009] In some embodiments, the assembly groove is provided with a first limiting portion at a portion away from the rotating side, and the actuating block is provided with a second limiting portion, and the first limiting portion abuts against the second limiting portion to limit the displacement of the actuating block.

[0010] In some embodiments, one of the protective cover and the main shell is provided with a receiving groove, and the other is provided with a rotating shaft, and the rotating shaft can be received in the receiving groove; the manual alarm button also includes an elastic shaft, and the rotating shaft is inserted with an elastic shaft at at least one end along its own axial direction, and the end of the elastic shaft facing away from the rotating shaft is rotatably connected to the main shell.

[0011] In some embodiments, the rotating shaft is provided with an insertion cavity for inserting the elastic shaft; the elastic shaft includes an elastomer and a shaft body, the elastomer is pressed between the shaft body and the cavity wall of the insertion cavity, and the end of the shaft body facing away from the elastomer is rotatably connected to the main shell.

[0012] In some embodiments, the shaft body is provided with a limiting protrusion, and a gap is provided between the limiting protrusion and the groove wall on the same side of the accommodating groove.

[0013] In some embodiments, the rotating shaft is provided with a rotating portion at one end along its own axis, and the rotating portion is rotatably connected to the main shell; the elastic driving member is sleeved on the rotating portion and connected to the protective cover and the main shell.

[0014] In some embodiments, the protective cover is provided with a second cavity on one side facing the main shell, the second cavity is provided with a slot at the locking side and one of the actuating block, and the other is provided with a protrusion, and the protrusion can be locked in the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of a manual alarm button provided in an embodiment of the present application with the protective cover opened;

[0017] Figure 2 A partial exploded view of a manual alarm button provided in one embodiment of the present application;

[0018] Figure 3 A partial cross-sectional view of the main housing at the locking side of a manual alarm button provided in one embodiment of the present application;

[0019] Figure 4 A partial cross-sectional view of the manual alarm button provided in one embodiment of the present application at the locking side;

[0020] Figure 5 A partial cross-sectional view of the manual alarm button provided in one embodiment of the present application at the rotating side.

[0021] Figure numerals: 10, main shell; 20, protective cover; 30, button assembly; 31, pressure plate; 32, actuator; 33, elastic return member; 40, elastic driving member; 60, boss; 71, latching protrusion; 72, latching groove; 73, rotating shaft; 74, accommodating groove; 75, first concave cavity; 76, connecting part; 80, elastic shaft; 81, elastic body; 82, shaft body; 103, assembly groove; 321, pressing part; 322, connecting part; 731, rotating part; 821, limiting protrusion; 1031, first limiting part; 3201, second limiting part; 7301, insertion cavity. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when a component is referred to as being "fixed to" or "provided on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0025] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0027] In related technologies, manual alarm buttons are mostly mounted on walls. When a fire is discovered, personnel can manually press them to sound the alarm, facilitating timely reporting of the fire. However, because manual alarm buttons need to be easy to operate, they are usually installed at a convenient height, which creates the risk of accidental activation.

[0028] To address this, in some cases a protective cover is added to the outside of the device to provide protection. The button can only be pressed when the cover is open, and the cover also acts as a dust-proof device, ensuring that the button is not affected by dust and other foreign matter, ensuring smooth pressing. Therefore, considering the protective function of the cover itself, it is usually installed more firmly, which means that the user needs to apply a large force to open the cover, which is not conducive to timely triggering in critical situations. Moreover, it is even more difficult for users with less strength to open the cover, thereby reducing the efficiency of personnel alarms. Moreover, precisely because a large force needs to be applied when opening the cover, that is, the cover and the main shell tend to be rigidly connected, the cover may be damaged after opening, which is not conducive to reuse.

[0029] To address the above issues, one embodiment of the present application provides a manual alarm button. While ensuring effective protection, it not only facilitates timely user activation, improving the efficiency and timeliness of personnel alarms, but also facilitates repeated activation and deactivation, reducing costs. The following describes the manual alarm button in detail.

[0030] Please refer to Figures 1 to 4 Exemplarily, the manual alarm button includes a main shell 10, a protective cover 20, a button assembly 30 and an elastic drive member 40. The main shell 10 has a rotating side and a locking side that are opposite and spaced apart along a first direction, and the main shell 10 is provided with an assembly groove 103 at the locking side. The protective cover 20 is rotatably connected to the rotating side of the main shell 10, and the elastic drive member 40 is pre-pressed between the protective cover 20 and the main shell 10 to apply a force to the protective cover 20 away from the main shell 10. The button assembly 30 is at least partially accommodated in the assembly groove 103 and includes a pressure plate 31 and an actuating block 32. The pressure plate 31 and the groove wall of the assembly groove 103 together enclose a guide cavity. A portion of the actuating block 32 is inserted into the guide cavity, and the other portion is snap-fitted with the protective cover 20. The actuating block 32 can move back and forth in the guide cavity to lock or unlock with the protective cover 20.

[0031] The main housing 10 is provided with a button and an alarm structure for alarming. Pressing the button can trigger the alarm structure, which serves the purpose of timely alarming in case of fire. The protective cover 20 is provided to protect the button and prevent dust. Among them, the provision of the assembly groove 103 can ensure that the key assembly 30 does not protrude relative to the main housing 10, and ensure as much as possible that when the protective cover 20 is locked with the actuating block 32, the contact point between the protective cover 20 and the main housing 10 is flush, thereby ensuring the protective effect of the protective cover 20. The pressure plate 31 can be bonded, snap-fitted, etc. with the groove wall of the assembly groove 103, as long as it can ensure that they are jointly enclosed to form a guide cavity; and when the actuating block 32 moves in the guide cavity, it can guide the movement of the actuating block 32, and avoid as much as possible the actuating block 32 from shaking and affecting the timely opening effect.

[0032] When the protective cover is rotated and closed relative to the main housing 10, the actuator block 32 on the main housing 10 can be used to engage the protective cover 20, ensuring the connection between the protective cover 20 and the main housing 10, thereby preventing the risk of accidental button activation. When an alarm operation is required, the actuator block 32 can be driven into the guide cavity to unlock the protective cover 20. The protective cover 20 then rotates away from the main housing 10 under the action of the elastic drive member 40, causing it to spring open, facilitating timely triggering of the button, eliminating the need for manual manipulation to open the protective cover 20. After use, the protective cover 20 can be manually driven to rotate in the opposite direction and lock with the actuator block 32 for reopening. Therefore, the manual alarm button provided in this embodiment is easy to operate. It only needs to press the actuating block 32 to move to ensure that the protective cover 20 is smoothly popped open under the action of the elastic driving member 40, thereby improving the efficiency and timeliness of personnel alarms; and, by utilizing the reciprocating movement of the actuating block 32 and the cooperation of the elastic driving member 40, it can be repeatedly opened and closed, reducing the wear on the protective cover 20 and the main shell 10, thereby reducing costs.

[0033] Furthermore, the actuating block 32 is capable of moving along a first direction in the guide cavity. When the manual alarm button is installed on a wall, the first direction is along the vertical direction, that is, the actuating block 32 moves along the vertical direction to meet the unlocking and locking with the protective cover 20. In other words, the moving direction of the actuating block 32 is set at an angle to the opening direction of the protective cover 20. Such a setting can avoid the impact of accidental touching of the actuating block 32 when a person accidentally collides with the wall, thereby reducing the risk of accidental opening of the protective cover 20; and, it can also improve the compactness of the structure. In actual use, the actuating block 32 can move upward in the vertical direction to unlock the protective cover 20, and move downward in the vertical direction to lock with the protective cover 20. This is also more convenient for personnel to operate.

[0034] Please refer to Figure 3 and Figure 4 In some embodiments, the button assembly 30 further includes an elastic return member 33, which is pressed against the wall of the assembly slot 103 between the actuating block 32 and the actuating block 32, and is used to apply a force toward the outside of the guide cavity to the actuating block 32. That is, under the pressure applied by a person, the actuating block 32 can move in a first direction toward the inside of the guide cavity to unlock the protective cover 20. The elastic return member 33 is squeezed by the actuating block 32 to store energy. When the actuating block 32 is unlocked from the protective cover 20, the protective cover 20 springs open under the action of the elastic drive member 40, facilitating personnel alarm activation. After the protective cover 20 is unlocked and springs open, the actuating block 32, under the action of the elastic return member 33, moves in the first direction toward the outside of the guide cavity to restore its initial position, facilitating relocking with the protective cover 20.

[0035] In some specific embodiments, both the elastic return member 33 and the elastic driving member 40 can be springs. The elastic return member 33 can be a compression spring, a spring plate, or another structure connected to an elastic element. The side of the assembly slot 103 that faces the actuating block 32 along the first direction serves as the first side wall, and the elastic return member 33 is compressed between the first side wall and the actuating block 32.

[0036] Alternatively, when the pressure plate 31 is L-shaped, comprising a long side and a short side, the short side can abut against the side wall of the mounting groove 103 opposite the actuating block 32 along the first direction, while the bottom of the short side is pressed against the bottom of the mounting groove 103. The long side and the bottom of the groove are opposite and spaced apart along the thickness direction of the protective cover 20. In this case, the elastic return member 33 is pressed between the short side and the actuating block 32. Alternatively, the bottom of the short side does not abut against the bottom of the groove. In this case, the end of the elastic return member 33 facing away from the actuating block 32 can abut against both the groove wall and the short side. This is sufficient as long as the elastic return member 33 can be assembled to drive the actuating block 32 out of the guide cavity, facilitating its automatic return to its initial position.

[0037] See also Figures 2 to 4 Alternatively, for example, the elastic return member 33 is press-fitted between the groove wall (i.e., the aforementioned first sidewall) of the assembly groove 103 and the actuating block 32. A protruding stud 60 is provided on each of the first sidewall and the actuating block 32's facing sides. The first sidewall correspondingly has a first protruding stud, while the actuating block 32 correspondingly has a second protruding stud. The two ends of the elastic return member 33 along the first direction are respectively sleeved onto the first and second protruding studs, thereby improving the installation stability and reliability of the elastic return member 33. When the actuating block 32 is in its initial position, a press-fitted space is provided between the first and second protruding studs, facilitating movement of the actuating block 32 into the guide cavity.

[0038] The initial position of the actuating block 32 is the position when the actuating block 32 is engaged with the protective cover 20 .

[0039] Alternatively, the boss 60 may be provided only on the first side wall, or only on the actuating block 32 , as long as reliable assembly of the elastic return member 33 is ensured.

[0040] Please continue reading Figures 2 to 4Alternatively, the assembly slot 103 may be provided with a first limiting portion 1031 on the portion facing away from the rotational side, and the actuating block 32 may be provided with a second limiting portion 3201. The first limiting portion 1031 may abut against the second limiting portion 3201 to limit the displacement of the actuating block 32. Specifically, the first limiting portion 1031 serves to limit the movement of the actuating block 32 into the guide cavity. Because the elastic return member 33 is pressed between the actuating block 32 and the first sidewall, excessive movement of the actuating block 32 into the guide cavity may significantly compress the elastic return member 33. This may increase fatigue of the elastic return member 33 over time, thereby shortening its service life. Therefore, the first limiting portion 1031 and the second limiting portion 3201 may be used to limit the displacement of the actuating block 32, reduce fatigue of the elastic return member 33, and extend its service life.

[0041] In some specific embodiments, the assembly groove 103 is configured as a stepped groove, having a limiting surface along the thickness direction of the protective cover 20, which serves as the aforementioned first limiting portion 1031. Simultaneously, the actuator 32 includes a pressing portion 321 and a connecting portion 322 connected to the pressing portion 321, the two being arranged at an angle. The connecting portion 322 is inserted into the guide cavity to cooperate with the elastic return member 33. The pressing portion 321 is located outside the guide cavity, and the end surface of the pressing portion 321 facing the connecting portion 322 forms the aforementioned second limiting portion 3201. The aforementioned second protrusion can be protruded from the middle of the connecting portion 322, with the first protrusion corresponding to the second protrusion.

[0042] like Figure 4 As shown, the protective cover 20 further has a second concave cavity on the side facing the main housing 10. A locking groove 72 is provided on one of the locking side of the actuating block 32 and the second concave cavity, and a locking protrusion 71 is provided on the other side. The locking protrusion 71 can be locked into the locking groove 72. The cooperation between the locking protrusion 71 and the locking groove 72 enables the actuating block 32 to be locked with the protective cover 20, and the structure is simple and easy to manufacture.

[0043] like Figure 3 and Figure 4 As shown, specifically, the pressing portion 321 of the actuating block 32 is L-shaped, the vertical edge is connected to the connecting portion 322, and a recessed slot 72 is provided on the side of the vertical edge away from the connecting portion 322, and the horizontal edge is protruding when the protective cover 20 is buckled, which is convenient for people to press.

[0044] Alternatively, a latching protrusion 71 may be provided on the side of the actuating block 32 facing away from the guide cavity, and a latching groove 72 may be provided on the protective cover 20 to meet the requirements of the latching fit.

[0045] See also Figure 2 and Figure 5As another example, the protective cover 20 is provided with a rotating shaft 73 near the rotating side, and the main shell 10 is provided with a receiving groove 74 at the rotating side, and the rotating shaft 73 is received in the receiving groove 74. At the same time, the manual alarm button also includes an elastic shaft 80. The elastic shaft 80 is inserted at one end of the rotating shaft 73 along its own axial direction, and the other end is convexly provided with a rotating portion 731. The receiving groove 74 is provided with a first concave cavity 75 on both sides of the axial direction of the rotating shaft 73. The elastic shaft 80 can be inserted into the first concave cavity 75 on the same side, and the rotating portion 731 is inserted into the first concave cavity 75 on the same side to meet the rotational connection between the protective cover 20 and the main shell 10. Moreover, precisely because of the provision of the elastic shaft 80, its end facing the corresponding first concave cavity 75 can elastically expand and contract along the axial direction of the rotating shaft 73, which is convenient for the disassembly of the protective cover 20 and the main shell 10.

[0046] A connecting portion 76 is protruded from one side of the protective cover 20 facing the main housing 10 , and an extended end of the connecting portion 76 is connected to the rotating shaft 73 to ensure that the protective cover 20 has more rotation space.

[0047] Furthermore, the rotating shaft 73 is provided with an insertion cavity 7301 for inserting the elastic shaft 80, and the insertion cavity 7301 is a blind hole. The elastic shaft 80 includes an elastomer 81 and a shaft 82, and the elastomer 81 is pressed between the shaft 82 and the cavity wall of the insertion cavity 7301. The end of the shaft 82 facing away from the elastomer 81 is used to be inserted into the corresponding first concave cavity 75 to achieve a rotational connection with the main shell 10. When disassembly is required, the shaft 82 can be driven to move toward the side close to the elastomer 81 to squeeze the elastomer 81, so as to detach from the first concave cavity 75 and achieve removal. When installing, due to the setting of the elastomer 81, it can be ensured that the end of the shaft 82 is stably inserted in the corresponding first concave cavity 75. Among them, a guide column is protruding from the side of the shaft 82 facing the elastomer 81, and the diameter of the guide column is smaller than the diameter of the shaft 82 itself. The elastic body 81 is a compression spring, one end of which is sleeved on the guide column and abuts against the end surface of the shaft body 82 facing the guide column, and the other end of the elastic body abuts against the cavity wall of the insertion cavity 7301.

[0048] Furthermore, the outer surface of the shaft body 82 is provided with a stopper protrusion 821. The stopper protrusion 821 is located outside the insertion cavity 7301 and has a gap with the corresponding groove wall on the same side of the receiving groove 74. This facilitates the user to grasp the stopper protrusion 821 on the side facing away from the elastic body 81 to apply force, thereby facilitating the removal of the shaft body 82. The side of the stopper protrusion facing the elastic body is inclined, reducing obstruction during shaft assembly. The diameter of the rotating portion 731 is substantially the same as that of the shaft body 82, and both are smaller than the diameter of the rotating shaft 73.

[0049] like Figure 2As shown, in some specific embodiments, the aforementioned elastic driving member 40 adopts a torsion spring, which is mounted on the rotating part 731 and connected between the protective cover 20 and the main shell 10 to apply a force to the protective cover 20 away from the main shell 10, thereby facilitating the protective cover 20 to pop open.

[0050] Alternatively, both ends of the rotating shaft 73 along its own axial direction are provided with an insertion cavity 7301, and the two insertion cavities 7301 are not connected, that is, both are blind holes. Each insertion cavity 7301 corresponds to the insertion of an elastic shaft 80. At the same time, the accommodating groove 74 can also be provided with convex shafts on both side walls along the axial direction of the rotating shaft 73, and the shaft body 82 of the elastic shaft 80 and the aforementioned rotating part 731 are both recessed with a first concave cavity 75 for the insertion of the convex shaft, which only needs to realize the rotational connection between the protective cover 20 and the main shell 10. Another alternative is that the main shell 10 can be provided with a convex rotating shaft 73 on the rotating side, and the protective cover 20 can be provided with an accommodating groove 74 near the rotating side. This is only for illustration.

[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A manual alarm button, characterized in that: include: A main housing (10) has a rotating side and a locking side that are opposite and spaced apart along a first direction, and the main housing (10) is provided with an assembly groove (103) on the locking side; a protective cover (20) rotatably connected to the rotating side; an elastic driving member (40) pre-compressed between the protective cover (20) and the main housing (10) and used for applying a force to the protective cover (20) away from the main housing (10); A key assembly (30) is at least partially accommodated in the assembly groove (103) and includes a pressure plate (31) and an actuating block (32), wherein the pressure plate (31) and the groove wall of the assembly groove (103) together form a guide cavity, a portion of the actuating block (32) is inserted into the guide cavity, and the other portion is snap-fitted with the protective cover (20); The actuating block (32) is capable of reciprocating in the guide cavity to lock or unlock with the protective cover (20).

2. The manual alarm button according to claim 1, characterized in that: The button assembly (30) further includes an elastic return member (33), which is arranged between the actuating block (32) and the groove wall of the assembly groove (103) and / or the pressure plate (31), and is used to apply a force to the actuating block (32) toward the outside of the guide cavity.

3. The manual alarm button according to claim 2, characterized in that: The groove wall of the assembly groove (103) and / or the side of the pressure plate (31) opposite to the actuating block (32) is used as the first side wall; The first side wall and / or the actuating block (32) is provided with a protruding column (60), and the elastic return member (33) is sleeved on the protruding column (60).

4. The manual alarm button according to claim 1, characterized in that: The actuating block (32) can reciprocate along a first direction in the guide cavity.

5. The manual alarm button according to claim 4, characterized in that: The assembly groove (103) is provided with a first limiting portion (1031) at a portion away from the rotating side, and the actuating block (32) is provided with a second limiting portion (3201), and the first limiting portion (1031) abuts against the second limiting portion (3201) to limit the displacement of the actuating block (32).

6. The manual alarm button according to claim 1, characterized in that: One of the protective cover (20) and the main housing (10) is provided with a receiving groove (74), and the other is provided with a rotating shaft (73), and the rotating shaft (73) can be received in the receiving groove (74); The manual alarm button further comprises an elastic shaft (80), the elastic shaft (80) being inserted into at least one end of the rotating shaft (73) along its own axial direction, and the end of the elastic shaft (80) facing away from the rotating shaft (73) being rotatably connected to the main housing (10).

7. The manual alarm button according to claim 6, characterized in that: The rotating shaft (73) is provided with an insertion cavity (7301) for inserting the elastic shaft (80); The elastic shaft (80) includes an elastic body (81) and a shaft body (82), wherein the elastic body (81) is pressed between the shaft body (82) and the cavity wall of the insertion cavity (7301), and the end of the shaft body (82) facing away from the elastic body (81) is rotatably connected to the main shell (10).

8. The manual alarm button according to claim 7, characterized in that: The shaft body (82) is provided with a limiting protrusion (821), and a gap is provided between the limiting protrusion (821) and the groove wall on the same side of the accommodating groove (74).

9. The manual alarm button according to claim 6, characterized in that: The rotating shaft (73) is provided with a rotating portion (731) at one end along its axial direction, and the rotating portion (731) is rotatably connected to the main housing (10); The elastic driving member (40) is sleeved on the rotating portion (731) and connected to the protective cover (20) and the main housing (10).

10. The manual alarm button according to any one of claims 1 to 9, characterized in that: The protective cover (20) is provided with a second concave cavity on one side facing the main housing (10); the second concave cavity is provided with a card slot (72) at the locking side and one of the actuating block (32); the other is provided with a card protrusion (71); the card protrusion (71) can be locked in the card slot (72).

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