manual alarm button

Abstract

The application provides a manual alarm button. The manual alarm button comprises a shell, a pressing plate, a first elastic reset component, a second elastic reset component and a locking component. The shell comprises a fixedly connected outer wall and an inner wall. The pressing plate has a first end side and a second end side. The first end side of the pressing plate is fixed to the outer wall of the shell in a rotatable manner. The second end side is provided with an outwardly extending protruding portion. The first elastic reset component is provided with a guide column, a first elastic member and a stopper. The guide column extends through the inner wall. The stopper is located in the cavity and fixed to the guide column. One end of the first elastic member abuts against the inner wall, and the other end of the first elastic member abuts against the stopper. The second elastic reset component is provided with a fastening bolt and a second elastic member. The locking component is provided with a clamping hook and a third elastic member. The clamping hook is fixed to the outer wall in a rotatable manner. The manual alarm button has the advantages of good product consistency and high reliability.

Description

Technical Field

[0001] This application relates to the field of fire alarm technology, and more particularly to a manual alarm button. Background Technology

[0002] The information provided in this section is for the purpose of generally presenting the background of this disclosure. To the extent described in this section, the work of the currently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art of this disclosure.

[0003] In fire safety configurations for various types of buildings (such as commercial complexes, industrial plants, and residential buildings), manual alarm buttons have become an indispensable and important component of fire alarm systems due to their ease of operation, direct response, and high reliability. Manual alarm buttons can be triggered by manual operation, quickly transmitting fire information to the fire control center, buying valuable time for early fire response and evacuation, and effectively compensating for the limitations of automatic detection systems. Utility Model Content

[0004] In view of this, this application provides a manual fire alarm button, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art, or providing an alternative technical solution to the prior art.

[0005] According to the present application, a manual alarm button is provided, which includes: A housing comprising an outer wall and an inner wall fixedly connected thereto, with a cavity formed between the outer wall and the inner wall; The pressing plate has a first end side and a second end side. The first end side of the pressing plate is rotatably fixed to the outer wall of the housing, so that the pressing plate can rotate in the cavity. The second end side of the pressing plate is provided with an outwardly extending protrusion. The first elastic reset assembly includes a guide post, a first elastic element, and a stop. The guide post extends through the inner wall and at least a portion of the guide post extends into the cavity. The stop is located in the cavity and fixed to the guide post. One end of the first elastic element abuts against the inner wall, and the other end of the first elastic element abuts against the stop. When the pressing plate rotates toward the cavity, the guide post can slide along the length of the guide post under the push of the pressing plate and cause the first elastic element to deform. The second elastic reset assembly includes a fastening bolt and a second elastic element. The fastening bolt is fixed to the outer wall, and at least a portion of the fastening bolt extends into the cavity. One end of the second elastic element abuts against a protrusion of the pressing plate, while the other end abuts against the fastening bolt. When the pressing plate rotates toward the cavity, the protrusion causes the second elastic element to deform. A locking assembly is provided with a hook and a third elastic element. The hook is rotatably fixed to the outer wall and has a first end and a second end. One end of the third elastic element abuts against the outer wall and the other end abuts against the first end of the hook. The pressing plate has a first position and a second position. In the first position, the guide post extends into the cavity to the maximum length, and the protrusion maintains line contact with the second end of the hook. In the second position, the guide post extends into the cavity to the minimum length, and the protrusion engages with the second end of the hook.

[0006] In another embodiment of the manual alarm button according to this application, the rotation plane of the pressing plate is perpendicular to the rotation plane of the hook.

[0007] In another embodiment of the manual alarm button according to this application, the first end of the hook is provided with a first bend, and the second end of the hook is provided with a second bend. The first bend and the second bend extend outward perpendicular to the body of the hook, wherein, in the first position, the protrusion and the second bend of the second end of the hook maintain line contact, and the contact line between the second bend and the protrusion is perpendicular to the rotation plane where the hook is located.

[0008] In another embodiment of the manual alarm button according to this application, a reset hole for inserting a reset key is provided on the outer wall of the housing, the reset hole being located near the first end of the latch.

[0009] In another embodiment of the manual alarm button according to this application, the inner wall of the housing is provided with a through hole for receiving the guide post, and the manual alarm button further includes an elastic seal located in the cavity and fixed on the inner wall for sealing the through hole on the inner wall.

[0010] In another embodiment of the manual alarm button according to this application, the guide post, the fastening bolt, and the latch are all made of metal.

[0011] In another embodiment of the manual alarm button according to this application, the first elastic element, the second elastic element and the third elastic element are all springs, and the springs are made of corrosion-resistant materials.

[0012] In another embodiment of the manual alarm button according to this application, the first end of the hook is provided with a protrusion, and the third elastic member is fitted onto the protrusion.

[0013] In another embodiment of the manual alarm button according to this application, the outer wall and inner wall of the housing are arranged parallel to each other, the center line of the guide post is perpendicular to the inner wall, and the center line of the fastening bolt is perpendicular to the outer wall.

[0014] In another embodiment of the manual alarm button according to this application, the protrusion extends outward along the plane of the pressing plate and is located on the center line of the pressing plate, wherein the thickness of the protrusion is less than the thickness of the pressing plate.

[0015] It is understood that the manual alarm button of this application, by adopting the design of a dual elastic reset component, can not only accurately control the reset action of the manual alarm button and greatly reduce the impact of the external environment on the product function, but also further improve the consistency and reliability of the product. Attached Figure Description

[0016] The technical solutions of this application will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are intended to conceptually illustrate the structural construction described herein, and are not necessarily drawn to scale.

[0017] Figure 1 An exemplary embodiment of the manual alarm button according to this application is shown in a front view in the first position; Figure 2 An exemplary embodiment of the manual alarm button according to this application is shown in a cross-sectional schematic diagram in the first position; Figure 3 An example is shown Figure 2 A partially enlarged cross-sectional schematic diagram of an embodiment of a manual alarm button; Figure 4 An exemplary embodiment of the manual alarm button according to this application is shown in a front view in the second position; Figure 5 An exemplary embodiment of the manual alarm button according to this application is shown in a cross-sectional schematic diagram in the second position; Figure 6 An example is shown Figure 5 A partially enlarged cross-sectional schematic diagram of an embodiment of a manual alarm button; and Figure 7 An example is shown Figure 1 Rear view of the outer wall, first elastic reset component, second elastic reset component, and locking component of an embodiment of a manual alarm button. Detailed Implementation

[0018] The content of this application and the differences between this application and the prior art can be understood by referring to the accompanying drawings and text. The technical solution of this application will be further described in detail below by means of the accompanying drawings and examples of some optional embodiments. In the accompanying drawings, the same or similar reference numerals represent the same or similar components.

[0019] It should be noted that any technical feature or technical solution in this embodiment is one or more of a variety of optional technical features or optional technical solutions. For the sake of brevity, this document cannot exhaustively list all alternative technical features and alternative technical solutions of this application, nor is it convenient to emphasize that the implementation of each technical feature is one of a variety of optional implementations. Therefore, those skilled in the art should know that any technical means provided by this application can be replaced or any two or more technical means or technical features provided by this application can be combined to obtain a new technical solution.

[0020] Any technical features and solutions within this embodiment do not limit the scope of protection of this application. The scope of protection of this application should include any alternative technical solutions that can be conceived by those skilled in the art without creative effort, as well as new technical solutions obtained by those skilled in the art by combining any two or more technical means or technical features provided in this application.

[0021] Currently, manual alarm is the most direct alarm method in fire alarm systems. Therefore, the smoothness of operation and the rationality of the design of manual alarm buttons are crucial to their proper functioning. Existing manual fire alarm buttons, regardless of whether the control panel is sliding or rotating, always have a gap between the button and the front panel after being pressed. This gap makes it easy for dust, debris, and other foreign objects to enter, causing internal mechanisms, such as springs, to malfunction.

[0022] like Figure 1 As shown, it schematically illustrates the structure of one embodiment of the manual alarm button of this application. (Also combined with...) Figure 1 and Figure 2The manual alarm button 10 is composed of a housing 100, a pressing plate 200, a first elastic reset assembly 300, a second elastic reset assembly 400, and a locking assembly 500. The housing 100 includes an outer wall 110 and an inner wall 120 fixedly connected, which can be arranged parallel to each other and form a cavity 130 between them. The pressing plate 200 has a first end side 210 and a second end side 220. The first end side 210 of the pressing plate 200 is rotatably fixed to the outer wall 110 of the housing 100, so that the pressing plate 200 can rotate within the cavity 130. The second end side 220 is provided with an outwardly extending protrusion 221. Specifically, the protrusion 221 extends outward along the plane of the pressing plate 200, and the protrusion 221 is located on the center line of the pressing plate 200. The thickness of the protrusion 221 can be set to be less than the thickness of the pressing plate 200.

[0023] It should be noted that the first elastic reset component 300 and the second elastic reset component 400 are both important components of this application. It is through their relative movement with the pressing plate 200 that the pressing plate is finally reset. The basic structure of these two components and their relative movement will be described below.

[0024] In the manual alarm button 10, the first elastic reset assembly 300 is provided with a guide post 310, a first elastic element 320, and a stop element 330. The guide post 310 extends through the inner wall 120, and the center line of the guide post 310 can be set perpendicular to the inner wall 120. Figure 2 and Figure 3As shown, at least a portion of the guide post 310 extends into the cavity 130 and is close to the pressing plate 200. The stop member 330 is located within the cavity 130 and fixed to the guide post 310, and one end of the first elastic member 320 abuts against the inner wall 120, while the other end of the first elastic member 320 abuts against the stop member 330, so that the first elastic member 320 is in a compressed state. When the pressing plate 200 rotates toward the cavity 130, the guide post 310 can slide along the length direction of the guide post 310 under the push of the pressing plate 200, and the first elastic member 320 can deform under the action of the guide post 310. That is, the first elastic member 320 is further compressed. On the other hand, the second elastic reset assembly 400 is provided with a fastening bolt 410 and a second elastic element 420. The fastening bolt 410 is fixed to the outer wall 110, and at least a portion of the fastening bolt 410 extends into the cavity 130, wherein the centerline of the fastening bolt 410 can be arranged perpendicular to the outer wall 110. One end of the second elastic element 420 abuts against the protrusion 221 of the pressing plate 200, while the other end of the second elastic element 420 abuts against the fastening bolt 410, so that the second elastic element 420 is in a compressed state. When the pressing plate 200 rotates toward the cavity 130, the second elastic element 420 can deform under the action of the protrusion 221. That is, the second elastic element 420 is further compressed.

[0025] Continue to refer to Figure 3 The locking assembly 500 is provided with a hook 510 and a third elastic member 520. The hook 510 is rotatably fixed to the outer wall 110 and has a first end 511 and a second end 512. One end of the third elastic member 520 abuts against the outer wall 110, and the other end abuts against the first end 511 of the hook 510. In this case, the first end 511 of the hook 510 may be provided with a protrusion 513, so that the third elastic member 520 can be fitted onto the protrusion 513. The pressing plate 200 has a first position and a second position. Figures 1 to 3 In the first position shown, the pressing plate 200 is in its initial state, the guide post 310 extends into the cavity 130 to its maximum length, and the protrusion 221 maintains line contact with the second end 512 of the hook 510, thereby generating very little friction between them and preventing friction from affecting the product's function. Figures 4 to 6In the second position shown, the press plate 200 is in an alarm state, the guide post 310 extends into the cavity 130 to its minimum length, and the protrusion 221 engages with the second end 512 of the hook 510 to prevent the press plate 200 from returning to its initial state under the action of the first elastic reset component 300 and the second elastic reset component 400. It should be noted that the manual alarm button of this application adopts a dual elastic reset component design, which can effectively prevent the reset function from failing: when one elastic reset component fails, the other elastic reset component can continue to perform the product reset action, thus ensuring high product reliability.

[0026] In the above embodiment, the rotation plane of the pressing plate 200 is perpendicular to the rotation plane of the hook 510. Further, the first end 511 of the hook 510 is provided with a first bent portion 511a, and the second end 512 of the hook 510 is provided with a second bent portion 512a. The first bent portion 511a and the second bent portion 512a extend outward perpendicular to the body of the hook 510. In the first position, the protrusion 221 maintains line contact with the second bent portion 512a of the second end 512 of the hook 510, and the contact line between the second bent portion 512a and the protrusion 221 is perpendicular to the rotation plane of the hook 510.

[0027] To facilitate operation and reset of the pressing plate 200, a reset hole (not shown) for inserting a reset key 700 is provided on the outer wall 110 of the housing 100. The reset hole is located near the first end 511 of the latch 510. Figure 7 As shown. When the fire alarm is cleared, if the press plate 200 needs to be reset, the operator only needs to insert the reset key 700 into the reset hole and turn the reset key 700.

[0028] In other optional embodiments, in conjunction with the above embodiments, the inner wall 120 of the housing 100 is provided with a through hole for accommodating the guide post 310, and the manual alarm button 10 further includes an elastic seal 600. The elastic seal 600 is located inside the cavity 130 and is fixed to the inner wall 120 by bolts, and is used to seal the through hole on the inner wall 120, thereby preventing dust, debris, and other foreign objects from entering the through hole and causing the internal mechanism of the manual alarm button 10 to malfunction. During operation, when the operator manually presses the press plate 200, the press plate 200 first pushes the elastic seal 600 and causes it to deform to a certain extent. Then, the elastic seal 600 pushes the guide post 310 to slide downward. Under the action of the guide post 310, the first elastic element 320 deforms.

[0029] For example, the guide post 310, the fastening bolt 410, and the hook 510 can all be made of metal or other materials, such as stainless steel. The first elastic element 320, the second elastic element 420, and the third elastic element 520 are all springs, and these springs are made of corrosion-resistant materials, thereby reducing the impact of the external environment on product function. Furthermore, the first elastic element 320, the second elastic element 420, and the third elastic element 520 can be standard springs, minimizing differences between different batches and ensuring product consistency.

[0030] The working principle of the manual alarm button of this application will be explained in detail below with reference to the accompanying drawings.

[0031] In the absence of a fire, the manual alarm button 10's press plate 200 is in its initial state, i.e., in its first position. The first elastic element 320 of the first elastic reset assembly 300 and the second elastic element 420 of the second elastic reset assembly 400 are compressed, providing axial support to the press plate 200. At this time, the protrusion 221 maintains line contact with the second end 512 of the latch 510 of the locking assembly 500, and the third elastic element 520 of the locking assembly 500 is compressed. Figures 1 to 3As shown. In the event of a fire, the operator manually presses the pressure plate 200 of the manual alarm button 10 to report the fire signal. During the rotation of the pressure plate 200 from the first position to the second position, the first elastic element 320 of the first elastic reset assembly 300 and the second elastic element 420 of the second elastic reset assembly 400 are triggered and further compressed under the push of the pressure plate 200. At this time, the third elastic element 520 of the locking assembly 500 is triggered and pushes the hook 510 to rotate, causing the protrusion 221 to disengage from the second end 512 of the hook 510, and when the pressure plate 200 rotates to the second position, the protrusion 221 engages with the second end 512 of the hook 510, so that the pressure plate 200 remains fixed in the second position. When the fire alarm is cleared, to reset the press plate 200, the operator can insert the reset key 700 through the reset hole, first turning the reset key 700 to rotate the first end 511 of the hook 510 upwards, while simultaneously rotating the second end 512 of the hook 510 downwards, causing the hook 510 to disengage from the press plate 200. At this time, under the elastic force of the first elastic member 320 and the second elastic member 420, the press plate 200 moves from the second position back to the first position, and the hook 510 rotates under the action of the third elastic member 520, so that the protrusion 221 and the second end 512 of the hook 510 of the locking assembly 500 regain line contact. After the press plate 200 has rotated back to its reset position, the operator removes the reset key 700. When the next fire occurs, the press plate 200 of the manual fire alarm button 10 can be pressed again.

[0032] In summary, the manual alarm button of this application adopts a dual elastic reset component design, which can not only accurately control the reset action and greatly reduce the interference of the external environment on the product function, effectively improving the consistency and reliability of the product; but also form a double protection to prevent the reset function from failing. Even if one elastic reset component fails, the other can still independently complete the product reset action, further enhancing the operational reliability of the product.

[0033] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0034] Furthermore, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this application include states or shapes that are similar to, analogous to, or close to those described above. Any component provided in this application can be assembled from multiple individual components or can be a single component manufactured using a one-piece molding process.

[0035] If the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” etc. are used in the description of this application, the orientation or positional relationship indicated by the above terms is based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment, mechanism, component, or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A manual alarm button, characterized in that, It includes: A housing comprising an outer wall and an inner wall fixedly connected thereto, with a cavity formed between the outer wall and the inner wall; The pressing plate has a first end side and a second end side. The first end side of the pressing plate is rotatably fixed to the outer wall of the housing, so that the pressing plate can rotate in the cavity. The second end side of the pressing plate is provided with an outwardly extending protrusion. The first elastic reset assembly includes a guide post, a first elastic element, and a stop. The guide post extends through the inner wall and at least a portion of the guide post extends into the cavity. The stop is located in the cavity and fixed to the guide post. One end of the first elastic element abuts against the inner wall, and the other end of the first elastic element abuts against the stop. When the pressing plate rotates toward the cavity, the guide post can slide along the length of the guide post under the push of the pressing plate and cause the first elastic element to deform. The second elastic reset assembly includes a fastening bolt and a second elastic element. The fastening bolt is fixed to the outer wall, and at least a portion of the fastening bolt extends into the cavity. One end of the second elastic element abuts against a protrusion of the pressing plate, while the other end abuts against the fastening bolt. When the pressing plate rotates toward the cavity, the protrusion causes the second elastic element to deform. A locking assembly is provided with a hook and a third elastic element. The hook is rotatably fixed to the outer wall and has a first end and a second end. One end of the third elastic element abuts against the outer wall and the other end abuts against the first end of the hook. The pressing plate has a first position and a second position. In the first position, the guide post extends into the cavity to the maximum length, and the protrusion maintains line contact with the second end of the hook. In the second position, the guide post extends into the cavity to the minimum length, and the protrusion engages with the second end of the hook.

2. The manual alarm button according to claim 1, characterized in that, The plane of rotation of the pressing plate is perpendicular to the plane of rotation of the hook.

3. The manual alarm button according to claim 2, characterized in that, The first end of the hook is provided with a first bend, and the second end of the hook is provided with a second bend. The first bend and the second bend extend outward perpendicular to the body of the hook. In the first position, the protrusion and the second bend of the second end of the hook maintain line contact, and the contact line between the second bend and the protrusion is perpendicular to the rotation plane of the hook.

4. The manual alarm button according to any one of claims 1-3, characterized in that, The outer wall of the housing is provided with a reset hole for inserting a reset key, and the reset hole is located near the first end of the hook.

5. The manual alarm button according to any one of claims 1-3, characterized in that, The inner wall of the housing is provided with a through hole for accommodating the guide post, and the manual alarm button also includes an elastic seal, which is located in the cavity and fixed on the inner wall to seal the through hole on the inner wall.

6. The manual alarm button according to any one of claims 1-3, characterized in that, The guide post, the fastening bolt, and the hook are all made of metal.

7. The manual alarm button according to any one of claims 1-3, characterized in that, The first elastic element, the second elastic element, and the third elastic element are all springs, and the springs are made of corrosion-resistant materials.

8. The manual alarm button according to any one of claims 1-3, characterized in that, The first end of the hook is provided with a protrusion, and the third elastic element is fitted onto the protrusion.

9. The manual alarm button according to any one of claims 1-3, characterized in that, The outer and inner walls of the housing are arranged parallel to each other, the center line of the guide post is perpendicular to the inner wall, and the center line of the fastening bolt is perpendicular to the outer wall.

10. The manual alarm button according to any one of claims 1-3, characterized in that, The protrusion extends outward along the plane of the pressing plate and is located on the center line of the pressing plate, wherein the thickness of the protrusion is less than the thickness of the pressing plate.

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