CN116434458A - Constant temperature fire detector - Google Patents
Constant temperature fire detector Download PDFInfo
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- CN116434458A CN116434458A CN202211379557.1A CN202211379557A CN116434458A CN 116434458 A CN116434458 A CN 116434458A CN 202211379557 A CN202211379557 A CN 202211379557A CN 116434458 A CN116434458 A CN 116434458A
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- temperature fire
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Abstract
The invention relates to the field of fire protection, and aims to provide a constant-temperature fire detector so as to solve the technical problem that the inside of the detector in the prior art is easy to generate electrical connection failure and circuit failure so as to be incapable of alarming. The constant temperature fire detector comprises a sealed bin, a detection mechanism and a compressed gas container, wherein the compressed gas container is used for storing high-pressure gas, and the high-pressure gas is discharged through an exhaust port on the sealed bin after the compressed gas container is broken; the detection mechanism comprises a mounting base which is directly or indirectly arranged on the sealed cabin, an impact component is slidably arranged on the mounting base along the direction facing to and away from the sealed cabin, and an elastic piece which drives the impact component to penetrate into the sealed cabin and puncture the compressed gas container is also arranged on the mounting base; the constant temperature fire detector also comprises a retaining body, wherein the retaining body is used for overcoming the elastic force of the elastic piece and limiting the impact part so as to enable the impact part and the compressed gas container to be mutually separated, and when the temperature reaches a threshold value, the retaining body is broken or melted to enable the elastic piece to reset.
Description
Technical Field
The invention relates to the field of fire protection, in particular to a constant temperature fire detector.
Background
The common temperature sensing fire detector is internally provided with a heat-sensitive element, the fire is detected through the heat-sensitive element, when the fire happens, the ambient temperature in a fire area is obviously increased in a short time, the heat-sensitive element is affected by the temperature so as to generate physical change, and an alarm electric signal is sent out through heat signal conversion after the heat-sensitive element is heated, so that an alarm device in a linkage setting area is subjected to alarm treatment, and the temperature sensing fire detector is widely applied to the fire protection field.
The temperature-sensing fire detector can be divided into two main types of mechanical type and electronic type according to the different mechanical structures of the sensors, and each type of detector can be divided into a constant temperature detector, a differential temperature detector and a differential constant temperature detector according to the different response characteristics of the sensors. The constant temperature fire detector sends out alarm action signal when the ambient temperature reaches or exceeds the preset temperature. The common constant temperature fire detector comprises a bimetal type constant temperature detector, a fusible metal type constant temperature detector and an electronic constant temperature detector. The main working principle of the bimetal type constant temperature detector is that the contact is closed by deformation at a certain temperature due to the fact that the thermal expansion coefficients of two metals are different and the deformation is different when the two metals are heated, and an electric signal is sent out; when the main working principle of the fusible metal type constant temperature detector is that fusible alloy is melted and falls off at a certain temperature, an electric control system is operated by means of an internal pressure spring and other mechanisms to electrically connect and close contacts, so that an alarm signal is sent out through a circuit; the main working principle of the electronic constant temperature detector is that the characteristic that the resistance value of elements such as a thermistor is reduced along with the temperature rise is utilized, and when the temperature reaches a certain threshold value, the current changes to a specific value, and an alarm is generated.
According to the working principle, the constant temperature fire detector in the prior art converts temperature signals into electric signals, the electric signals are electrically connected with the alarm system through a circuit, the alarm system alarms through the electric signals, but the constant temperature fire detector is easy to fail in electric connection or has circuit faults in severe high-temperature environments or environments with large temperature fluctuation, so that the fire detector cannot alarm in a constant temperature range, cannot play a specific fire monitoring role when a fire happens, and finally a fire accident is caused.
Disclosure of Invention
The invention aims to provide a constant temperature fire detector, which solves the technical problems that the inside of the constant temperature fire detector in the prior art is easy to generate electrical connection failure and circuit failure so as to not alarm.
In order to achieve the above purpose, the technical scheme of the constant temperature fire detector provided by the invention is as follows:
the constant temperature fire detector comprises a sealed bin and a compressed gas container arranged in the sealed bin, wherein the compressed gas container is used for storing high-pressure gas, the sealed bin is provided with an exhaust port, and the high-pressure gas can be exhausted through the exhaust port after the compressed gas container is broken; the constant temperature fire detector also comprises a detection mechanism, wherein the detection mechanism comprises a mounting base which is directly or indirectly arranged on the sealed cabin, an impact part is arranged on the mounting base in a sliding manner along the direction towards and away from the sealed cabin, and an elastic part which drives the impact part to move towards the sealed cabin so as to penetrate into the sealed cabin and puncture the compressed gas container is also arranged on the mounting base; the constant temperature fire detector comprises a retaining body fixedly arranged on the mounting base, wherein the retaining body is used for overcoming the elastic force of the elastic piece and limiting the impact part so as to enable the impact part and the compressed gas container to be spaced from each other, and the retaining body is used for breaking or melting when the temperature reaches a set threshold value so as to reset the elastic piece.
The beneficial effects are that: the constant temperature fire detector comprises a sealing bin and a detection mechanism connected to the sealing bin, wherein the whole detector is of a mechanical structure, and when a fire disaster occurs in a detector arrangement area, high-pressure gas in a compressed gas container in the sealing bin is sprayed out to trigger a subsequent related mechanism. When the temperature is lower than the set threshold value, the impact part can be limited by the retaining body and is separated from the compressed gas container, when the temperature in the arrangement area exceeds the threshold value, the retaining body is melted or broken, the elastic piece elastically returns in the direction towards the compressed gas container so as to eject the impact part by the elastic force of the elastic piece, the impact part can be ejected into the sealing bin to puncture the compressed gas container, so that the sealing bin is filled with high-pressure gas, the high-pressure gas can be discharged through the exhaust port so as to impact and trigger a subsequent related mechanism, the whole process realizes the efficient conversion of temperature signals and pressure signals, and compared with the mode of converting the temperature signals into electric signals in the prior art, no electric connection is needed, and the technical problems that the inside of the constant-temperature fire detector in the prior art is easy to generate electric connection failure and circuit failure so as to be unable to alarm are effectively solved.
Preferably, a protection sleeve is arranged on the sealing bin, and penetrates into the sealing bin; the impact member includes a striker disposed within the protective sleeve, and the impact member further includes a ram extending into the protective sleeve and driving movement of the striker. One end of the protective sleeve penetrates into the sealing cavity, and the other end of the protective sleeve can penetrate into the ejector rod to eject the firing pin, so that the tightness of the sealing bin is ensured, and high-pressure gas is prevented from leaking from the position where the protective sleeve penetrates into the sealing bin.
Preferably, the striking component comprises a guide post, the ejector rod is arranged on the guide post, one end of the guide post, which faces the sealing bin, is provided with a blocking edge along the radial outer edge, and the elastic piece is a pressure spring elastically compressed between the blocking edge and the mounting base. The guide post can stably press the pressure spring into the mounting base and stably support and push the ejector rod, so that the elastic impact of the impact part is ensured to have stable driving force.
Preferably, the mounting base comprises a baffle plate, the baffle plate is used for being in stop fit with the guide column so as to limit the movement limit of the guide column towards the sealing bin, and a push rod through hole for the push rod to penetrate is formed in the baffle plate. The baffle can limit the movement limit position of the guide post and the pressure spring in the mounting base, and the guide post is prevented from moving excessively to strike the sealing bin.
Preferably, the end of the protective sleeve, which is far away from the sealing bin, is supported on the baffle. The protection sleeve can be stably installed and supported, and the tightness of the connection arrangement of the protection sleeve is further ensured.
Preferably, at least two connecting columns are arranged between the mounting base and the sealing bin, a space is arranged between adjacent connecting columns, and the retainer is communicated with the space between the adjacent connecting columns. The mounting base is connected with the seal cartridge through the connecting column and communicates the holding body with the space of the connecting column, thereby exposing the holding body outside the seal cartridge and the mounting base, and enabling the holding body to directly communicate with the air in the arrangement area to directly sense the temperature change in the arrangement area.
Preferably, the sealing bin is fixedly provided with a first support column, the impact part is provided with a second support column, the first support column and the second support column are arranged in a staggered mode, the retaining body is arranged between the two support columns, and the retaining body is positioned between the sealing bin and the mounting base. The first support columns and the second support columns are arranged in a staggered mode, and when the retainer is melted or broken, the elastic pieces can be reset without interference, so that the reliability of elastic reset is guaranteed.
Preferably, the holder is a fusible alloy which melts when the temperature reaches a set threshold.
Preferably, the holding body is a fire-fighting temperature-sensing glass ball, and the fire-fighting temperature-sensing glass ball breaks when the temperature reaches the set threshold.
Preferably, the exhaust port is connected with a pipeline joint. The pipeline joint can be used for connecting an air valve or a pipeline, and is beneficial to the butt joint of the constant temperature fire detector and the alarm system.
Drawings
FIG. 1 is a schematic diagram of a constant temperature fire detector in embodiment 1 according to the present invention;
reference numerals illustrate:
1. a mounting base; 2. sealing the bin; 3. an exhaust line; 4. a pipe joint; 5. a guide post; 6. a pressure spring; 7. a push rod; 8. a baffle; 9. a holding body; 10. a first support column; 11. a protective sleeve; 12. a connecting column; 13. a second support column; 14. and a blocking edge.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" or the like is not excluded from a process, method, or the like that includes the element.
In the description of the present invention, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; either directly, indirectly through intermediaries, or in communication with the interior of the two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
The present invention is described in further detail below with reference to examples.
Specific embodiment 1 of the constant temperature fire detector provided by the invention:
as shown in fig. 1, the constant temperature fire detector in this embodiment includes a sealing cabin 2 and a detecting mechanism which are arranged at intervals from top to bottom, the detecting mechanism includes a mounting base 1 fixed below the sealing cabin 2, the constant temperature fire detector further includes a holding body 9 fixed on the mounting base 1, an elastic member and an impact member are arranged on the mounting base 1, an exhaust port is arranged at the upper end of the sealing cabin 2, an exhaust pipeline 3 is connected on the exhaust port, the exhaust pipeline 3 is used for being connected with an alarm system when the constant temperature fire detector is connected and arranged, and the alarm system connected with the constant temperature fire detector in this embodiment is a pneumatic water valve and a water pipe thereof. The retaining body 9 can keep the elastic element in a compressed state after connection and arrangement and limit the impact part so as to enable the impact part and the sealing bin 2 to be mutually spaced, the retaining body 9 can be melted and deformed when the temperature in the arrangement area reaches the set threshold range, so that the elastic element is elastically restored and the impact part is sprung into the sealing bin 2 upwards, a compressed gas container is arranged in the sealing bin 2, high-pressure gas is stored in the compressed gas container, the compressed gas container can be pierced by the impact part when the impact part is sprung into the sealing bin 2, the high-pressure gas stored in the compressed gas container is discharged, the high-pressure gas is led into the alarm system through the exhaust pipeline 3, the conversion of a thermal signal and a pneumatic pressure signal is realized, and the alarm is triggered.
As shown in fig. 1, the sealed cabin 2 is of a closed box type structure, the mounting base 1 is of a cylinder structure fixedly arranged at the lower end of the sealed cabin 2, the mounting base 1 extends up and down, the exhaust pipeline 3 is arranged at the upper end of the sealed cabin 2, and the interior of the exhaust pipeline 3 is communicated with the interior of the sealed cabin 2. The compressed gas container comprises an air bag which is fixedly arranged in the sealed bin 2 and is internally used for storing high-pressure gas in a sealed mode. As shown in fig. 1, the mounting base 1 is fixed to the lower end of the seal housing 2 by connecting columns 12, the connecting columns 12 are provided with a plurality of connecting columns 12 and are fixed to the outer periphery of the upper end surface of the mounting base 1, the connecting columns 12 form an exposed space between the mounting base 1 and the seal housing 2, and the holding body 9 is provided in the space, so that temperature sensing can be performed by exposing to the air.
As shown in fig. 1, the elastic member in this embodiment is a compression spring 6 that is disposed in the mounting base 1 and extends up and down, and the bottom of the compression spring 6 is fixedly disposed at the bottom of the inner cavity of the cylinder of the mounting base 1. The striking part comprises a guide post 5 penetrating through a pressure spring 6, a blocking edge 14 extending horizontally in the radial direction is arranged on the periphery of the top end of the guide post 5, the blocking edge 14 can downwards push the pressure spring 6 to compress the pressure spring 6, and when the bottom of the guide post 5 is contacted with the bottom of the inner cavity of the mounting base 1, the pressure spring 6 is in a compressed state. The top of the guide post 5 is fixedly provided with a push rod 7 which extends up and down, and the push rod 7 can move upwards along with the guide post 5 when the pressure spring 6 elastically returns upwards. Wherein, the top of mounting base 1 is equipped with the baffle 8 that the level extends, and baffle 8 is used for simultaneously with the top shutoff of mounting base 1 stopping the cooperation with the top of guide post 5 to limit the limit that guide post 5 and pressure spring 6 upwards moved, be equipped with the ejector pin perforation that supplies ejector pin 7 to pass on the baffle 8, in ejector pin 7 can stretch out the baffle entering mounting base 1 and seal storehouse 2 interval.
As shown in fig. 1, a protection sleeve 11 is arranged on the sealing bin 2, the protection sleeve 11 is positioned in the interval between the mounting base 1 and the sealing bin 2, the top end of the protection sleeve 11 is fixedly arranged at the bottom of the sealing bin 2 and extends into the sealing bin 2 to be communicated with the sealing bin 2, and the bottom end of the protection sleeve 11 is supported on the baffle plate 8. The striking component further comprises a firing pin slidingly assembled in the protective sleeve 11, the bottom end of the protective sleeve 11 corresponds to the ejector rod perforation on the baffle plate 8, so that the ejector rod 7 can extend into the protective sleeve 11 after passing through the ejector rod perforation, and the ejector rod 7 can extend into the protective sleeve 11 to push the firing pin when the pressure spring 6 elastically returns, and the firing pin is driven to move towards the inside of the seal bin 2.
In order to keep the guide post 5 in an initial state of pressing the compression spring 6 downwards during initial setting, as shown in fig. 1, a pressing perforation which is arranged at intervals with the ejector rod perforation is arranged on the baffle plate 8, a first support post 10 which is arranged adjacent to the protective sleeve 11 and extends downwards is fixedly arranged at the bottom of the sealing bin 2, a second support post 13 which penetrates through the pressing perforation and stretches into the interval is arranged at the top of the guide post 5, the first support post 10 and the second support post 13 are arranged in a staggered manner up and down, a retaining body 9 is arranged between the two support posts to fix the adjacent end parts of the two support posts, and the retaining body 9 keeps the second support post 13 in a state of pressing the guide post 5 downwards, so that the compression spring 6 maintains a compressed state.
The holding body 9 in this embodiment is made of a fusible alloy which fixedly connects opposite ends of the first support column 10 and the second support column 13. The holding body 9 can induce temperature change in the arrangement area in the interval between the sealing bin 2 and the mounting base 1, when the temperature rises to exceed the melting threshold of the fusible alloy, the holding body 9 is melted, the connection of the first support column 10 and the second support column 13 cannot be supported and fixed, the first support column 10 and the second support column 13 can be separated from the fixed state, the guide column 5 can move upwards under the elastic restoring top pressure of the pressure spring 6, so that the top ejector rod 7 of the guide column can collide with the striker in the protective sleeve 11, the striker can move upwards into the sealing bin 2 along the protective sleeve 11, the air bag in the compressed air container is punctured, and the compressed air in the sealing bin 2 can be discharged from the air outlet, thereby triggering the alarm system.
In this embodiment, the entire mounting base 1 is made of alloy, and the self-connection strength can be ensured. The exhaust pipeline 3 at the top of the sealing bin 2 extends along the horizontal direction, and a pipeline joint 4 for being in butt joint with an alarm system is arranged on the exhaust pipeline 3. The connection arrangement and the alarm triggering process of the constant temperature fire detector in the embodiment in the appointed area are as follows: the whole constant temperature fire detector is fixed in a designated area, the sealing bin 2 and the mounting base 1 can be fixed through a connecting piece or a connecting plate, and then the pipeline joint 4 of the exhaust pipeline 3 is connected with a touch valve of an alarm system, so that the installation of the constant temperature fire detector is completed. When a fire disaster occurs in a detector arrangement area or the temperature exceeds the melting threshold of the fusible metal, the fusible metal is melted and deformed, the first support column 10 and the second support column 13 are separated from fixation, the top pressure on the pressure spring 6 at the moment disappears, the pressure spring 6 pushes the guide column 5 upwards to move upwards, the guide column 5 pushes the ejector rod 7 upwards, the ejector rod 7 penetrates through the ejector rod perforation to extend into the protective sleeve 11 to push the firing pin upwards, the firing pin moves upwards along the protective sleeve 11 and enters the sealing bin 2, the firing pin can puncture the compressed gas container to enable high-pressure gas to enter the exhaust pipeline 3 from the exhaust port of the sealing bin 2, and finally the high-pressure gas in the exhaust pipeline 3 is flushed into the pneumatic water valve of the alarm system through the pipeline joint 4, so that the water valve is opened to extinguish fire and an alarm device on the water valve is triggered to enable the alarm system to alarm. In this embodiment, by adopting different types of fusible metals, the change of the temperature threshold of the constant temperature fire detector can also be realized, so that the constant temperature fire detector is applicable to more arrangement scenes.
The constant temperature fire detector in this embodiment sets up mechanical pneumatic type's mounting base 1 and sealed storehouse 2 to can be when the conflagration takes place in the detector arrangement area, trigger the firing pin by pressure spring 6 drive ejector pin 7, the high-efficient conversion of temperature signal and pressure signal has been realized to whole constant temperature fire detector's triggering process, mechanical transmission through elastic conduction and gas pressure direct drive alarm system need not to carry out circuit connection and arrange the electrical components, thereby the technical problem that the electrical connection inefficacy and circuit failure can't report to the police appear easily in the constant temperature fire detector inside among the prior art has been solved effectively.
Specific example 2 of the constant temperature fire detector provided by the invention:
the difference from embodiment 1 is that in embodiment 1, a protection sleeve 11 is provided on the seal cartridge 2, the protection sleeve 11 penetrates into the seal cartridge 2, a striker is provided inside the protection sleeve 11, and a push rod 7 for driving the striker to move is provided on the guide post 5. In this embodiment, the protective sleeve is omitted, the bottom of the seal cartridge is provided with a striker perforation, the top of the striker extends into the striker perforation to maintain a separation from the compressed gas container, and the bottom of the striker extends into contact with the ejector pin. In other embodiments, the ejector rod and the protective sleeve can be simultaneously removed, and the top end of the guide post is directly provided with a firing pin which can extend into the sealed bin, so that the firing pin is driven to move upwards when the guide post moves upwards, and the compressed gas container is punctured.
Specific embodiment 3 of the constant temperature fire detector provided by the invention:
unlike embodiment 1, in embodiment 1, the striking member includes a guide post 5, and a radially and horizontally extending blocking edge 14 is provided at the top end of the guide post 5, and the blocking edge 14 can press down against the compression spring 6 to compress the compression spring 6. In this embodiment, the pressure spring top sets up the roof that the level extends, and the roof can downwardly compress the pressure spring, and ejector pin and second support column all establish on the roof.
the difference from embodiment 1 is that in embodiment 1, the holding body 9 is made of a fusible metal. In this embodiment, the retainer is a fire-fighting temperature-sensing glass ball, and the fire-fighting temperature-sensing glass ball can be heated and ruptured after reaching its hot melting threshold, and the fire-fighting temperature-sensing glass ball is supported and fixed between the first support column and the second support column. The material of the retainer in the invention can be changed, and the retainer which can be melted by heating within a threshold value is within a protection range.
Specific example 5 of the constant temperature fire detector provided by the invention:
unlike embodiment 1, in embodiment 1, the bottom of the sealed cabin 2 is provided with a first support column 10, the guide column 5 is provided with a second support column 13, and the first support column 10 and the second support column 13 are staggered and fixed by the holding body 9. In this embodiment, the first support column and the second support column are vertically corresponding, and the holding body is required to be made into a longer rod-shaped structure to ensure the moving distance of the guide column 5 when the holding body is melted. In other embodiments, the first support column and the second support column can be directly replaced by the retaining body, and only the retaining body is required to be manufactured into a columnar structure, for example, a guide rod is provided with an upward extending support column, the bottom of the sealing bin is provided with a downward extending columnar retaining body, and the retaining body and the support column are propped against each other to compress the pressure spring. Therefore, in extreme cases, the first support column and the second support column are not arranged, the retaining body is directly manufactured into a long column structure, and then the retaining body is propped between the sealing bin and the mounting base, so that the pressure spring is compressed.
Specific example 6 of the constant temperature fire detector provided by the invention:
the difference from embodiment 1 is that in embodiment 1, the elastic member is a compression spring 6, and the striking member includes a guide post 5 engaged with the compression spring 6. In this embodiment, the elastic component is the extension spring, and extension spring one end is fixed on the baffle, and the striking part is equipped with the second support column including setting up the even board at the other end of downwardly extending on even board, even board can be overcome the pulling force of extension spring and push down, keeps the tensile state of extension spring, and the extension spring can resume the pull-up when keeping the body melting to strike the firing pin in the striking part.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The constant temperature fire detector is characterized by comprising a sealing bin (2) and a compressed gas container arranged in the sealing bin (2), wherein the compressed gas container is used for storing high-pressure gas, the sealing bin (2) is provided with an exhaust port, and the high-pressure gas can be exhausted through the exhaust port after the compressed gas container is broken; the constant temperature fire detector also comprises a detection mechanism, wherein the detection mechanism comprises a mounting base (1) which is directly or indirectly arranged on the sealed bin (2), an impact part is arranged on the mounting base (1) in a sliding manner along the direction towards and away from the sealed bin (2), and an elastic piece which drives the impact part to move towards the sealed bin (2) so as to penetrate into the sealed bin (2) and puncture a compressed gas container is also arranged on the mounting base (1); the constant temperature fire detector comprises a retaining body (9) fixedly arranged on the mounting base (1), the retaining body (9) is used for overcoming the elastic force of the elastic piece and limiting the impact part so as to enable the impact part and the compressed gas container to be mutually spaced, and the retaining body (9) is used for breaking or melting when the temperature reaches a set threshold value so as to reset the elastic piece.
2. The constant temperature fire detector according to claim 1, wherein a protective sleeve (11) is arranged on the sealed cabin (2), and the protective sleeve (11) penetrates into the sealed cabin (2); the impact component comprises a firing pin positioned in the protective sleeve (11), and also comprises a push rod (7) which extends into the protective sleeve (11) and drives the firing pin to move.
3. A constant temperature fire detector according to claim 2, characterized in that the impact member comprises a guide post (5), the ejector rod (7) is arranged on the guide post (5), one end of the guide post (5) facing the sealing bin (2) is provided with a blocking edge (14) along the radial direction, and the elastic member is a pressure spring (6) elastically compressed between the blocking edge (14) and the mounting base (1).
4. A constant temperature fire detector according to claim 3, wherein the mounting base (1) comprises a baffle (8), the baffle (8) being adapted to be in a stop fit with the guide post (5) to limit the movement of the guide post (5) towards the seal cartridge (2), the baffle (8) being provided with a ram aperture through which the ram (7) extends.
5. A constant temperature fire detector according to claim 4, characterized in that the end of the protective sleeve (11) remote from the sealed cabin (2) is supported on a baffle (8).
6. A constant temperature fire detector according to any one of claims 1-5, characterized in that at least two connecting posts (12) are arranged between the mounting base (1) and the sealed cabin (2), a space is arranged between adjacent connecting posts (12), and the retainer (9) is communicated with the space of the adjacent connecting posts (12).
7. The constant temperature fire detector according to claim 6, wherein a first support column (10) is fixedly arranged on the sealing bin (2), a second support column (13) is arranged on the impact component, the first support column (10) and the second support column (13) are arranged in a staggered mode, the retaining body (9) is arranged between the two support columns, and the retaining body (9) is located between the sealing bin (2) and the mounting base (1).
8. A constant temperature fire detector according to any one of claims 1-5, wherein the holder (9) is a fusible alloy which melts when the temperature reaches a set threshold.
9. A constant temperature fire detector according to any one of claims 1-5, wherein the holder (9) is a fire-fighting temperature-sensitive glass sphere which breaks when the temperature reaches the set threshold.
10. A constant temperature fire detector according to any one of claims 1-5, characterised in that the exhaust port is connected with a pipe connection (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211379557.1A CN116434458A (en) | 2022-11-04 | 2022-11-04 | Constant temperature fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211379557.1A CN116434458A (en) | 2022-11-04 | 2022-11-04 | Constant temperature fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116434458A true CN116434458A (en) | 2023-07-14 |
Family
ID=87082027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211379557.1A Pending CN116434458A (en) | 2022-11-04 | 2022-11-04 | Constant temperature fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116434458A (en) |
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2022
- 2022-11-04 CN CN202211379557.1A patent/CN116434458A/en active Pending
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