Fire-fighting detector and base for fire-fighting detector

Abstract

The utility model provides a fire-fighting detector and a base used for the fire-fighting detector, and the base comprises a mounting seat which comprises a mounting plate which is provided with a first side provided with a plurality of terminals and a second side opposite to the first side, and is provided with a plurality of through holes; the first connecting piece is provided with a first connecting end which is connected with one of the plurality of terminals through the through hole, and a first free end which is positioned on the second side; the second connecting piece is provided with a second connecting end which is connected with another terminal in the plurality of terminals through the through hole, and a second free end which is positioned on the second side; the limiting piece is arranged on the second side, the first free end can be arranged at a first position and a second position relative to the limiting piece, and in the first position, the first free end and the second free end are not electrically connected, so that the corresponding terminals are in a non-electric connection state; in the second position, the first and second free ends are electrically connected such that the corresponding terminals are in an electrically connected state.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a fire detector, in particular, to a base for a fire detector. BACKGROUND

[0002] Fire detectors are fire safety products and are one of the important equipment to protect people's life and property safety. As part of the early warning system, fire detectors can timely warn risks through sound and light alarm methods.

[0003] In the global market environment, fire detector product compliance is the primary prerequisite for entering the markets of different countries and regions. The Chinese market requires products to meet the national standard GB, while the North American market adopts the UL (Underwriters Laboratories) certification standard. Although a single market certification can meet the basic access requirements, as market competition intensifies, meeting multiple certification standards has become the key to improving product competitiveness. Such multiple certifications not only can expand the market coverage of products, but also can enhance the market recognition of products.

[0004] However, the implementation of the new GB brings new challenges to existing products. The new national standard has higher requirements for the performance, structure and safety of the base, so that the original base that meets the old GB and UL double standards cannot meet the new GB. Therefore, it is necessary to redesign and mold the detector base. However, this process not only prolongs the project development cycle, but also significantly increases the development cost. In addition, the cost of re-molding is high, which brings a large economic burden to enterprises. Therefore, developing a base that can meet the new GB and comply with the UL certification standard has become a technical problem to be solved.

[0005] In addition, in the base of the related art, the terminals inside are usually connected by a cable. This connection method has many problems: first, manual welding has high process requirements, is tedious and inefficient, and increases production cost and time cost; second, the reliability of the welding point is poor, and connection failure is easily caused by factors such as corrosion and aging, thereby affecting the stability and safety of the entire system. These problems are particularly prominent in practical applications, especially in scenarios with complex wiring and high reliability requirements, the limitations of existing technologies are increasingly evident. Therefore, it is urgent to provide an improved base for a fire detector to improve connection efficiency, flexibility, reliability and economy. SUMMARY

[0006] The present disclosure aims to provide an improved base for a fire detector, the inside of which is electrically connected or disconnected by connection or disconnection between multiple connectors, so that the corresponding terminals are in an electrically connected state or a non-electrically connected state. Such a base not only meets the UL certification standard, but also meets the requirements of the new national standard, and can be flexibly installed according to different use scenarios, with the advantages of time saving, labor saving and cost optimization.

[0007] To solve the above problems, the present disclosure provides an improved base for a fire detector, comprising: a mounting seat comprising a mounting plate having a first side provided with a plurality of terminals and a second side opposite to the first side, and a plurality of through holes are provided on the mounting plate; and a connector comprising: a first connector having a first connecting end connected with one of the plurality of terminals through the through hole, and a first free end located at the second side; a second connector having a second connecting end connected with another of the plurality of terminals through the through hole, and a second free end located at the second side; and a limiting piece provided at the second side, the first free end can be set at a first position and a second position relative to the limiting piece, at the first position, the first free end and the second free end are not electrically connected, so that the one terminal and the another terminal are in a non-electrically connected state; at the second position, the first free end and the second free end are electrically connected, so that the one terminal and the another terminal are in an electrically connected state.

[0008] In an embodiment of the present disclosure, at least one of the first connector and the second connector has elasticity.

[0009] In an embodiment of the present disclosure, the limiting piece is located at the second side of the mounting plate and is arranged to stop the first free end.

[0010] In an embodiment of the present disclosure, the limiting piece is provided with at least two protrusions, when the first free end is at the first position, the first free end is stopped on the protrusion away from the mounting plate; when the first free end is at the second position, the first free end is stopped on the protrusion close to the mounting plate.

[0011] In an embodiment of the present disclosure, the second free end is provided with a limiting piece, when the first free end is at the first position, the first free end is not electrically connected with the second free end; when the first free end is at the second position, the first free end is stopped on the limiting piece and is electrically connected with the second free end.

[0012] In an embodiment of the present disclosure, a surface of the first free end facing the second free end when the first free end is in the first position is provided with a non-conductive material, or an insulating sheet is pasted to a surface of the first free end facing the second free end when the first free end is in the first position.

[0013] In an embodiment of the present disclosure, the first free end is provided with a ring-shaped portion, and when the first free end is in the second position, the limiting member passes through the center of the ring-shaped portion and is clamped to a conductive surface of the ring-shaped portion.

[0014] In an embodiment of the present disclosure, the base further comprises a protective cover for covering the second side of the mounting seat.

[0015] In an embodiment of the present disclosure, the protective cover is provided with an adjusting hole at a position corresponding to the connecting member, to provide an operation space for adjusting the connection or separation between the first connecting member and the second connecting member.

[0016] In an embodiment of the present disclosure, the protective cover is further provided with a hole cover for closing the adjusting hole.

[0017] In an embodiment of the present disclosure, at least one of the first connecting member and the second connecting member has an adjustable length.

[0018] The present disclosure also proposes a fire detector, comprising a sensor and the base as described in the above embodiments, wherein the sensor is arranged on the base.

[0019] The foregoing and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and serve to explain the principles of the present disclosure. In the drawings:

[0021] Figure 1 is an exploded perspective view showing a base of a fire detector;

[0022] Figure 2 is a perspective view of a mounting seat of the base in Figure 1

[0023] Figure 3A is a plan view showing a first side of the mounting seat in Figure 2

[0024] Figure 3B Figure 2 ​​​Figure 1 is a perspective view of a mounting base according to an embodiment of the present disclosure;

[0025] Figure 4 Figure 2 is a perspective view of a mounting base according to an embodiment of the present disclosure, wherein a first connecting member and a second connecting member are shown in a state of not being electrically connected;

[0026] Figure 4A Figure 3 is a partial enlarged view of part A circled by a dashed line in Figure 2; Figure 4

[0027] Figure 4 is a partial enlarged view of part B circled by a dashed line in Figure 2; Figure 4B Figure 4A Figure 5 is a partial enlarged view of the first connecting member and the second connecting member in Figure 2 changing to an electrically connected state;

[0028] Figure 5 Figure 6 is a perspective view of a mounting base according to another embodiment of the present disclosure, wherein a first connecting member and a second connecting member are shown in a state of not being electrically connected;

[0029] Figure 5A Figure 7 is a partial enlarged view of part A circled by a dashed line in Figure 6; Figure 5

[0030] Figure 8 is a partial enlarged view of part B circled by a dashed line in Figure 6; Figure 5B Figure 5A Figure 9 is a partial enlarged view of the first connecting member and the second connecting member in Figure 6 changing to an electrically connected state;

[0031] Figure 6A Figure 10 is a perspective view of a base for a fire detector according to an embodiment of the present disclosure, wherein an adjustment hole on a protective cover is covered by a hole cover.

[0032] Figure 6B Figure 11 is another perspective view of the base shown in Figure 10, wherein the hole cover covering the adjustment hole is removed. Figure 6A

List of reference numerals

[0033] 10 mounting base

[0034] 11 terminal

[0035] 12 through hole

[0036] 13 mounting plate

[0037] 20 protective cover

[0038] 21 adjustment hole

[0039] 22 hole cover

[0040] 30 connecting member

[0041] 31 first connecting member

[0042] ​​​

[0043] 311 first connecting end

[0044] 312 first free end

[0045] 32 second connecting member

[0046] 321 second connecting end

[0047] 322 second free end

[0048] 33 limiting member

[0049] 331 protrusion

[0050] 40 wiring assembly DETAILED DESCRIPTION

[0051] Although the present disclosure is illustrated and described herein with reference to specific embodiments, the present disclosure is not intended to be limited to the details shown. Rather, various modifications can be made in the details within the scope and range of equivalents of the claims and without departing from the present disclosure.

[0052] Figure 1 is an exploded perspective view showing a base of a fire detector. Generally, a fire detector comprises a base and a sensor mounted on the base.

[0053] As shown in Figure 1 , the base can comprise a mounting base 10, a protective cover 20 and a wiring assembly 40. One side of the mounting base 10 can be used to mount the sensor and the other side can be provided with a removable protective cover 20. The base can be secured to an external object, such as a ceiling, a wall, a roof, etc. via the protective cover 20.

[0054] Figure 2 is a perspective view of the mounting base 10. Figure 3A and Figure 3B show schematic plan views of a first side of the mounting base 10 facing away from the protective cover 20 and a second side of the mounting base 10 facing towards the protective cover 20, respectively.

[0055] As shown, the mounting base 10 can have a mounting plate 13 and an annular wall portion provided therearound. The mounting plate 13 can be provided within the annular wall portion such that an inner space can be enclosed between the mounting plate 13 and the annular wall portion, respectively, in order to provide respective structures on the first and second sides of the mounting plate 13 and electronic devices such as the wiring assembly, the controller, etc.

[0056] The mounting plate 13 can be provided with a wiring assembly and various components adapted to the sensor. The first side and the second side of the mounting plate 13 are opposite sides. The protective cover 20 is provided on the second side of the mounting base 10. The protective cover 20 can be a cover plate having a shape adapted to the annular wall portion of the mounting base 10, for example, can be approximately circular plate-shaped. The protective cover 20 can be provided with a fixing structure for fixing to the mounting base 10 to close the internal space of the mounting base 10. For example, a buckle structure can be provided at the peripheral position of the side surface of the protective cover 20 facing the mounting base 10 to be buckled with the corresponding buckle structure provided on the inner wall of the annular wall portion. In other embodiments, the mounting base 10 and the protective cover 20 can also be fixed in other ways, such as screw connection, adhesion, etc.

[0057] The sensor can be provided on the first side of the mounting base 10. Similarly, the sensor can also be provided with a buckle structure or other fixing structure for combination with the corresponding buckle structure or corresponding other fixing structure of the annular wall portion of the mounting base 10.

[0058] It should be noted that the shape of the mounting base 10 of the present disclosure is not limited to the above-mentioned annular shape, but can also be other shapes, such as polygonal shape, as long as the mounting base 10 and the protective cover 20 and the sensor can be shape-adapted and assembled with each other.

[0059] As shown in Figure 3A , a plurality of electrical connection terminals 11 connected with the wiring assembly are provided on the first side of the mounting plate 13 for connecting external cables, such as connecting with cables drawn from the ceiling. The terminals 11 can adopt a terminal structure with a tightening screw, and the external cables can be connected and fixed to the terminal seat by tightening the screw. The terminals 11 can also adopt other existing connection methods such as wire clips, as long as they can be connected with the external cables and form good electrical conduction with them.

[0060] A plurality of through holes 12 are also provided on the mounting plate 13. The number of through holes 12 can be equal to or greater than the number of terminals 11. The through holes 12 can be used for the terminals 11 located on the first side of the mounting plate 13 to pass through, and can also be used for the connecting pieces connected with the terminals 11 to pass through to the second side of the mounting plate 13, as shown in Figure 2 and 3B The connecting end can be an integral part of the terminal 11, or can be a separate part electrically connected with the terminal 11.

[0061] According to the UL certification standard, the same terminal can connect two cables, but the new national standard requires that only one cable is allowed to be connected to one terminal.

[0062] To this end, the disclosure proposes to realize the conduction or turn-off between the corresponding terminals by setting the connection and separation of multiple connecting pieces, which can be flexibly applied to the UL authentication standard and the new national standard without the need to redesign and open the mold of the existing detector base.

[0063] In the following, the structure and action principle between the connecting piece 30 and the terminal 11 proposed by the disclosure will be described in detail. Figures 4 to 6B The structure and action principle between the connecting piece 30 and the terminal 11 proposed by the disclosure will be described in detail.

[0064] As shown in Figure 4 and Figure 5 , in the embodiment proposed by the disclosure, multiple connecting pieces 30 are provided. Among them, the material of the connecting piece 30 can be the same as that of the terminal 11, that is, also made of conductive material. It can be understood that the connecting piece 30 and the terminal 11 can be integrally formed, or can be separately made.

[0065] As shown in the embodiment, the connecting piece 30 and the limiting piece 33 are provided on the mounting plate 13 of the base. The limiting piece 33 is located on the second side of the mounting plate 13, used to connect with the connecting piece 30, and is provided with two-stage limiting structure, so that the connecting piece 30 is clamped in the first position or the second position relative to the limiting piece 33. In the first position, the connecting piece 30 can be non-electrically connected with the connecting end of the corresponding terminal 11; in the second position, the connecting piece 30 can be in contact with the connecting end of the corresponding terminal 11 to form an electrical connection.

[0066] It should be noted that the specific setting position of the limiting piece 33 is not specifically limited in this embodiment, as long as the non-electric connection or electric connection between the first connecting piece 31 and the second connecting piece 32 can be formed.

[0067] The connecting piece 30 can have a first connecting piece 31 and a second connecting piece 32 separated from each other. The first connecting piece 31 and the second connecting piece 32 are respectively connected with the corresponding two terminals 11. The limiting piece 33 can be provided at the second connecting piece 32, used to position the position of the first connecting piece 31 relative to the second connecting piece 32. When the first connecting piece 31 is set in the first position on the limiting piece 33, the first connecting piece 31 and the second connecting piece 32 are not electrically connected with each other, and the two terminals 11 are in a non-electrically connected state, which can be applied to the UL authentication standard; when the first connecting piece 31 is set in the second position on the limiting piece 33, the first connecting piece 31 and the second connecting piece 32 are electrically connected with each other, and the two terminals 11 are in an electrically connected state, which can be applied to the new national standard.

[0068] In an embodiment of the disclosure, the connecting piece 30 can be provided with multiple connecting pieces to meet the needs of different wiring scenes.

[0069] In an embodiment of the present disclosure, at least one of the first connecting member 31 and the second connecting member 32 has an adjustable length. It can be understood that the present disclosure has a plurality of terminals, and according to specific scenarios, the distance between two terminals that need to be connected changes, and therefore, the length of at least one of the first connecting member 31 and the second connecting member 32 connecting the two terminals can change with the change of the distance between the terminals.

[0070] Figure 4 is a perspective view of the mounting base 10 according to an embodiment of the present disclosure, in which the first connecting member 31 and the second connecting member 32 are shown in a state of not being electrically connected. Figure 4A is Figure 4 is a partial enlarged view of part A enclosed by a dashed line in Figure 4B is Figure 4A is a partial enlarged view of the first connecting member 31 and the second connecting member 32 in

[0071] As shown, the first connecting member 31 has a first connecting end 311 for connecting one of the two terminals 11. As described above, the first connecting end 311 can be integrally formed with the terminal 11 or separately formed, as long as the two are electrically connected. If the first connecting member 31 and the terminal 11 are separately formed, the first connecting end 311 can be electrically connected to the corresponding terminal 11 by means such as clamping, welding, winding, sleeving, etc., which are not limited by the present disclosure. Similarly, the second connecting member 32 has a second connecting end 321 for connecting the other of the two terminals 11. Similarly, the second connecting end 321 can be integrally formed with the terminal 11 or separately formed, as long as the two are electrically connected.

[0072] The first connecting member 31 has a first free end 312, and the second connecting member 32 has a second free end 322. The first free end 312 and the second free end 322 can be electrically connected or not electrically connected to each other by means of a limiting member 33, and the specific connection manner will be described in detail below.

[0073] According to an embodiment of the present disclosure, on the first side of the mounting plate 13, the first connecting end 311 of the first connecting member 31 is connected to one terminal 11, the second connecting end 321 of the second connecting member 32 is connected to the other terminal 11, and the first free end 312 of the first connecting member 31 and the second free end 322 of the second connecting member 32 are arranged on the second side of the mounting plate 13 and can be electrically connected or not electrically connected to each other by means of the limiting member 33.

[0074] It can be understood that the through hole 12 of the present disclosure can be shaped to allow the connecting member 30 to pass through smoothly, and preferably, the shape of the through hole 12 matches the shape of the connecting member 30.

[0075] In an embodiment of the present disclosure, one of the first connecting member 31 and the second connecting member 32 can be formed as a strip-shaped spring piece to make contact with the other one.

[0076] For the purpose of illustration, the first connecting member 31 is described as being provided as a spring piece. The second connecting member 32 can be provided in a shape adapted to the spring piece to make good electrical contact. Specifically, the body of the first connecting member 31 can be provided as a long strip-shaped piece, and the body of the second connecting member 32 can also be provided as a long strip-shaped piece, wherein the body of the first connecting member 31 is longer than the body of the second connecting member 32 to bridge between the two terminals 11. The second connecting member 32 can be located near the terminal 11 to which it is connected, and the limiting member 33 can be provided near the second connecting member 32 to control the positional relationship between the first connecting member 31 and the second connecting member 32, thereby controlling whether the two are electrically connected.

[0077] In addition, the first free end 312 of the first connecting member 31 is provided in a shape adapted to the second free end 322 of the second connecting member 32. Specifically, as shown in Figure 4A and Figure 4B the first free end 312 is, for example, square-shaped, and the second free end 322 is also square-shaped, so that the two make contact with a large contact surface to make stable electrical connection. It can be understood that the shapes of the first connecting member 31 and the second connecting member 32, and the shapes of the first free end 312 and the second free end 322 in the present disclosure are not limited to those described in the present embodiment.

[0078] In an embodiment of the present disclosure, in each connecting member 30, at least one of the first connecting member 31 and the second connecting member 32 is of a flexible structure. It can be understood that the first free end 311 and the second free end 321 can be connected to each other by the deformation of the first connecting member 31 and / or the second connecting member 32 with the aid of the limiting member 33.

[0079] Referring again to Figure 4A and Figure 4BThe first connecting end 311 of the first connecting piece 31 is connected with the corresponding terminal 11 on the first side of the mounting plate 13, and the first free end 312 thereof is exposed on the second side of the mounting plate 13. The body of the first connecting piece 31 is bent on the second side and extends the first free end 312 towards the direction of the second free end 322, so that the first free end 312 is clamped in the first position or the second position relative to the limiting piece 33. Correspondingly, the second connecting end 321 of the second connecting piece 32 is connected with the corresponding terminal 11 on the first side of the mounting plate 13, and the second free end 322 thereof is exposed on the second side of the mounting plate 13 and extends below the first free end 312 and at the limiting piece 33, so that the first free end 312 and the second free end 322 can be stacked on each other in a direction perpendicular to the mounting plate 13.

[0080] It should be noted that the number of limiting pieces 33 is not specifically limited in the present disclosure, and the corresponding number of limiting pieces can be set according to the specific structure. In the present disclosure, the limiting piece 33 is provided with at least two protrusions 331.

[0081] As shown in Figure 4A and Figure 4B , preferably, the limiting pieces 33 are symmetrically arranged on both sides of the second free end 322. The limiting piece 33 extends substantially perpendicularly from the second side of the mounting plate 13 and has a certain elasticity for clamping the first free end 311. At least two protrusions 331 are arranged on the inner side of each limiting piece 33. The at least two protrusions 331 are arranged at intervals along the extension direction of the limiting piece 33. It should be noted that the distance between the two limiting pieces 33 can be slightly smaller than the width (in the direction perpendicular to the extension direction of the limiting piece 33) of the first free end 312, so as to reliably clamp the first free end 311 between the two limiting pieces, more specifically, in the limiting groove formed by the adjacent two protrusions 331.

[0082] Here, taking the case of arranging two protrusions 331 as an example, the second free end 322 can be clamped at the protrusion 331 of the limiting piece 33 away from the mounting plate 13, in other words, at the limiting groove between the two protrusions 331 of the limiting piece 33, or at the protrusion 331 of the limiting piece 33 close to the mounting plate 13. When the first free end 312 is clamped in the limiting groove (first position), the first free end 312 and the second free end 322 are separated from each other, i.e. the first connecting piece 31 and the second connecting piece 32 are separated from each other, and the corresponding terminal 11 is in a non-electrically connected state, as shown in Figure 4A .

[0083] When the first free end 312 is clamped at the protrusion 331 of the limiting member 33 close to the mounting plate 13 (second position), the first free end 312 and the second free end 322 are connected to each other, i.e. the first connecting member 31 and the second connecting member 32 are connected to each other, and the corresponding terminals are in an electrically connected state, as shown in Figure 4B .

[0084] According to the present disclosure, more than two protrusions 331 can also be provided, for example, three protrusions. In this way, the second free end 322 can be arranged at the limiting recess between the two protrusions 331 of the limiting member 33 away from the mounting plate 13, or at the limiting recess between the two protrusions 331 of the limiting member 33 close to the mounting plate 13. When the first free end 312 is clamped at the limiting recess away from the mounting plate 13, the first free end 312 and the second free end 322 are separated from each other, and when the first free end 312 is clamped at the limiting recess close to the mounting plate 13, the first free end 312 and the second free end 322 are connected to each other.

[0085] Here, it should be noted that the protrusion 331 of the limiting member 33 can be arranged downward at a position closer to the mounting plate 13 than the second free end 322, so that the first free end 312 and the second free end 322 can be more firmly abutted due to the flexible structure of the first connecting member 31 and the deformation thereof.

[0086] Figure 5 is a perspective view of the mounting seat 10 according to another embodiment of the present disclosure. Figure 5 The embodiment shown is different from the embodiment shown in Figure 4 in that no separate limiting member 33 is provided, but the limiting member 33 is formed on the second free end, so that the first free end 312 and the second free end 322 are not electrically connected or are electrically connected. For the sake of brevity, the same parts as in the embodiment shown in Figure 4 will not be described again.

[0087] Figure 5A is a partial enlarged view of part B outlined by a dashed line in Figure 5 , in which the first connecting member 31 and the second connecting member 32 are shown in a state of not being electrically connected. Figure 5B is a partial enlarged view of the first connecting member 31 and the second connecting member 32 in Figure 5A transformed to an electrically connected state.

[0088] In the present embodiment, the first free end 312 is provided with a ring-shaped portion, for example, which can be arranged at Figure 4The central part of the square sheet-shaped part of the embodiment is cut to form a hollow ring-shaped part. The side of the second free end 322 away from the first connecting member 31 can be provided with a limiting member 33. The ring-shaped part of the first free end 312 can be sleeved on the limiting member 33 of the second free end 322. In other embodiments, the ring-shaped part of the first free end 312 can also have other shapes, and the shape of the limiting member 33 is not limited, as long as the limiting members 33 on the first free end 312 and the second free end 322 can be connected when the first connecting member 31 and the second connecting member 32 are connected, and the present disclosure is not limited thereto.

[0089] Optionally, the surface of the first free end 312 facing the second free end 322 in the first position, which in this embodiment can be the surface of the first free end 312 facing the mounting plate 13, is made of a non-conductive material, and is used to prevent accidental contact when the surface of the first free end 312 is in contact with the second free end when the two terminals 11 are in a non-electrically connected state. Preferably, the surface of the first free end 312 facing the second free end 322 in the first position can be pasted with an insulating sheet.

[0090] As shown in FIG. 1, the first free end 312 is not electrically connected with the second free end 322 in the first position, and at this time, the first connecting member 31 and the second connecting member 32 are also not electrically connected, and the corresponding terminal 11 is in a non-electrically connected state. Figure 5A As shown in FIG. 2, the limiting member 33 passes through the center of the ring-shaped part of the first free end 312 and is clamped to the conductive surface of the first free end 312, causing the first free end 312 to contact the limiting member 33 of the second free end 322 at this time, and the first connecting member 31 and the second connecting member 32 form an electrical connection, and the corresponding terminal 11 is in an electrically connected state.

[0091] Figure 5B As shown in FIG. 2, the limiting member 33 passes through the center of the ring-shaped part of the first free end 312 and is clamped to the conductive surface of the first free end 312, causing the first free end 312 to contact the limiting member 33 of the second free end 322 at this time, and the first connecting member 31 and the second connecting member 32 form an electrical connection, and the corresponding terminal 11 is in an electrically connected state.

[0092] It should be noted that the first free end 312 is pulled towards the second free end 312 under the action of an external force F (such as the arrow direction shown in FIG. 3) and is sleeved on the limiting member 33, and the stable connection with the second free end 322 is maintained by the elastic restoring force of the first connecting member 31. Figure 5B

[0093] In the embodiments shown in FIGS. 1 and 2, it is mentioned that the first connecting member 31 has elasticity, but the present disclosure is not limited thereto, and in other embodiments, the second connecting member 32 can also have elasticity, or both can have elasticity. Figure 4 Figure 5

[0094] ​​​​Furthermore, when at least one of the first connector 31 and the second connector 32 is designed as a spring, even if there is an error in the size of the contact fit between the first connector 31 and the second connector 32 after installation, a reliable contact can be easily formed by adjusting the spring to deform it appropriately.

[0095] Figure 6A and Figure 6B A schematic diagram of the base 10 is shown, in which... Figure 6A A schematic diagram showing the adjustment hole 21 of the protective cover 20 being covered by the hole cover 22 is shown. Figure 6A A schematic diagram showing the adjustment hole 21 of the protective cover 20 not being covered by the hole cover 22.

[0096] In addition to being used for installation on external objects, the protective cover 20 can also prevent foreign objects, such as dust, from contaminating the interior space of the mounting base 10.

[0097] Furthermore, to facilitate adjustment of the connection between the first connector 31 and the second connector 32, in this disclosure, an adjustment hole 21 can be provided at the position of the protective cover 20 corresponding to the second free end 322, such as... Figure 6B As shown. The adjustment hole 21 provides operating space for manually adjusting the connection or separation between the first connector 31 and the second connector 32. Through this adjustment hole 21, the operator can easily manually connect or separate the first free end 312 and the second free end 322 without removing the protective cover 20.

[0098] After adjusting the state of the first connector 31 and the second connector 32, the hole cover 22 can be placed on the adjustment hole 21 to seal the adjustment hole and prevent contamination by foreign objects.

[0099] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0100] Although this application has been described with reference to exemplary embodiments, the terminology used is descriptive and exemplary, and not restrictive. Because this application can be embodied in many forms without departing from its spirit and essence, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted in the broadest possible sense within the scope defined by the claims. Therefore, all variations falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A base for a fire detector, characterised in that, The base comprises: a mounting seat (10) comprising a mounting plate (13) having a first side provided with a plurality of terminals (11) and a second side opposite to the first side, and a plurality of through holes (12) provided on the mounting plate (13); and a connecting piece (30) comprising: a first connecting piece (31) having a first connecting end (311) connected with one of the plurality of terminals (11) through the through hole (12) and a first free end (312) located at the second side; a second connecting piece (32) having a second connecting end (321) connected with another of the plurality of terminals (11) through the through hole (12) and a second free end (322) located at the second side; and a limiting piece (33) provided at the second side, the first free end (312) being capable of being arranged at a first position and a second position relative to the limiting piece (33), in the first position, the first free end (312) and the second free end (322) are not electrically connected, so that the one terminal (11) and the another terminal (11) are in a non-electrically connected state; in the second position, the first free end (312) and the second free end (322) are electrically connected, so that the one terminal (11) and the another terminal (11) are in an electrically connected state.

2. A base for a fire detection probe as claimed in claim 1, characterised in that, At least one of the first connecting piece (31) and the second connecting piece (32) has elasticity.

3. A base for a fire detection probe as claimed in claim 2, wherein, The limiting piece (33) is located at the second side of the mounting plate (13) and is arranged to stop the first free end (312).

4. The base for a fire detection probe of claim 3, wherein, The limiting piece (33) is provided with at least two protrusions (331), when the first free end (312) is in the first position, the first free end (312) is stopped on the protrusion (331) away from the mounting plate (13); when the first free end (312) is in the second position, the first free end (312) is stopped on the protrusion (331) close to the mounting plate (13).

5. The base for a fire detection probe of claim 2, wherein, The second free end (322) is provided with a limiting piece (33), when the first free end (312) is in the first position, the first free end (312) is not electrically connected with the second free end (322); when the first free end (312) is in the second position, the first free end (312) is stopped on the limiting piece (33) and is electrically connected with the second free end (322).

6. A base for a fire detection probe as claimed in claim 5, wherein, The surface of the first free end (312) facing the second free end (322) in the first position is provided with a non-conductive material, or an insulating sheet is pasted on the surface of the first free end (312) facing the second free end (322) in the first position.

7. The base for a fire detection probe of claim 5, wherein, The first free end (312) is provided with an annular portion, when the first free end (312) is in the second position, the limiting piece (33) passes through the center of the annular portion and is stopped on the conductive surface of the annular portion.

8. A base for a fire detection probe as claimed in any one of claims 1 to 7, wherein, The base further comprises a protective cover (20) for covering the second side of the mounting seat (10).

9. A base for a fire detection probe as claimed in claim 8, wherein, The protective cover (20) is provided with an adjusting hole (21) at a position corresponding to the connecting piece (30) for providing an operating space for adjusting the connection or separation between the first connecting piece (31) and the second connecting piece (32).

10. A base for a fire detection probe as claimed in claim 9, wherein, The protective cover (20) is further provided with a hole cover (22) for closing the adjusting hole (21).

11. A base for a fire detection probe as claimed in any one of claims 1 to 7, wherein, At least one of the first connecting piece (31) and the second connecting piece (32) has an adjustable length.

12. A fire detector comprising: The fire detection device has: a sensor; and The base of any one of claims 1-11, wherein the sensor is disposed on the base.

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