CN214311986U

CN214311986U - Tunnel fire alarm's temperature-sensitive detector

Info

Publication number: CN214311986U
Application number: CN202120480470.8U
Authority: CN
Inventors: 刘维伟; 陈伟; 丁阳春
Original assignee: Zhangzhou Kangda Expressway Co ltd
Current assignee: Zhangzhou Kangda Expressway Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-09-28
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses a temperature-sensitive detector for tunnel fire alarm, which comprises a shell, base and temperature sensing device, L font spacing groove has been seted up to the both sides of base, the one end and the base bottom of spacing groove flush, the other end of spacing groove is at the middle part of base lateral wall, the bolt through-hole has been seted up to the base, the casing includes casing and lower casing, it passes through threaded connection with lower casing to go up the casing, go up the top of casing and seted up flutedly, the both sides fixedly connected with fixture block of recess, fixture block and spacing groove cooperation, go up the casing bottom and seted up the draw-in groove, temperature sensing device's top is connected with the mounting panel, the spout has all been seted up to the both sides of mounting panel, the outside fixedly connected with spring two of keeping away from the mounting panel of spout, two fixedly connected with slide bars of spring, the one end fixedly connected with kelly of slide bar, slide bar other end fixedly connected with depression bar, kelly and draw-in groove cooperation, the purpose of easy to assemble and dismantlement temperature sensing detector has been reached.

Description

Tunnel fire alarm's temperature-sensitive detector

Technical Field

The utility model relates to a temperature-sensing detector technical field specifically is a tunnel fire alarm's temperature-sensing detector.

Background

The heat-sensitive fire detector (temperature sensing for short) mainly uses a heat-sensitive element to detect fire. In the initial stage of a fire, on the one hand, a large amount of smoke is generated, and on the other hand, a large amount of heat is released in the combustion process of substances, and the temperature of the surrounding environment rises sharply. The detector has thermosensitive element with physical change, and responds to abnormal temperature, temperature rate and temperature difference to convert the temperature signal into electric signal for alarm. The temperature sensing elements are divided into three types, namely a constant temperature type, a differential type and a constant temperature difference dynamic type temperature sensing fire alarm, and the temperature sensing area is generally 30-40 square meters. The temperature-sensitive detectors are all installed at the top of the tunnel, and when the temperature-sensitive detectors need to be disassembled to overhaul or replace batteries, the disassembly of the existing temperature-sensitive detectors is generally troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel fire alarm's temperature-sensitive detector has solved the problem of mentioning in the above-mentioned technical background. In order to achieve the above object, the utility model provides a following technical scheme: a temperature-sensing detector for tunnel fire alarm comprises a shell, a base and a temperature-sensing device, wherein L-shaped limiting grooves are formed in two sides of the base, one end of each limiting groove is flush with the bottom of the base, the other end of each limiting groove is arranged in the middle of the side wall of the base, a bolt through hole is formed in the base, the shell comprises an upper shell and a lower shell, the upper shell is in threaded connection with the lower shell, a groove is formed in the top of the upper shell, clamping blocks are fixedly connected to two sides of the groove, the clamping blocks are matched with the limiting grooves, a clamping groove is formed in the bottom of the upper shell, a mounting plate is connected to the top of the temperature-sensing device, sliding grooves are formed in two sides of the mounting plate, a spring II is fixedly connected to the outer side of the sliding grooves far away from the mounting plate, a sliding rod is fixedly connected to the spring II, and a clamping rod is fixedly connected to one end of the sliding rod, the other end of the sliding rod is fixedly connected with a pressing rod, and the clamping rod is matched with the clamping groove.

Preferably, one end side wall of the limiting groove is connected with a first inclined block through a spring, one end of the clamping block is provided with a second inclined block, and the first inclined block is matched with the second inclined block.

Preferably, one end of the sliding groove, which is far away from the second spring, is fixedly connected with a fixed rod, one side of the sliding rod, which is close to the second spring, is provided with a limiting clamping groove, and the fixed rod is matched with the limiting clamping groove.

Preferably, the fixed rod and the limiting clamping groove are both polygonal.

Preferably, the outer side of the shell is provided with a high temperature resistant layer.

Preferably, one end of the clamping rod, which is far away from the second spring, is provided with a positioning rod.

To sum up, the utility model discloses following beneficial effect has:

this kind of tunnel fire alarm's temperature detector, through rotating the casing, the casing drives the fixture block and removes in the spacing groove, make fixture block and spacing groove not spacing together, base and casing separation this moment, the effect of casing and tunnel top separation has been realized, through rotating the screw thread, the effect of casing and casing separation down is gone up in the realization, through pressing down the limiting lever, make the clamping lever not spacing in the draw-in groove, make mounting panel and last casing separation, the realization is to the effect of temperature sensing device separation, the detection to temperature sensing device has been made things convenient for, when needing the installation, spacing in the draw-in groove through the clamping lever, it is spacing on last casing to make temperature sensing device, spacing in the limiting groove through the fixture block, make casing and base spacing together, realize the effect of casing installation at the tunnel top.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a sectional view of the present invention with parts separated;

fig. 3 is a top view of the mounting plate of the present invention;

FIG. 4 is a side view of the position of the limiting groove when the limiting groove is matched with the clamping block;

fig. 5 is an enlarged view of the position a of the present invention.

In the figure: the temperature sensing device comprises a shell 1, an upper shell 101, a lower shell 102, a groove 103, a clamping block 104, a base 2, a limiting groove 201, a first spring 202, a first inclined block 203, a bolt through hole 204, a temperature sensing device 3, a clamping groove 4, a mounting plate 5, a sliding groove 501, a second spring 502, a sliding rod 503, a clamping rod 504, a pressing rod 505, a thread 6, a fixing rod 7, a limiting clamping groove 701, a positioning rod 8 and a second inclined block 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a temperature detector for tunnel fire alarm comprises a housing 1, a base 2 and a temperature sensing device 3, wherein L-shaped limiting grooves 201 are formed on two sides of the base 2, the L-shaped limiting grooves 201 are divided into vertical limiting grooves 201 and horizontal limiting grooves 201, the vertical limiting grooves 201 and the horizontal limiting grooves 201 are perpendicular to each other, the bottom ends of the vertical limiting grooves 201 are flush with the bottom of the base 2, the horizontal limiting grooves 201 are formed in the middle of the side walls of the base 2, bolt through holes 204 are formed in the base 2, the housing 1 comprises an upper housing 101 and a lower housing 102, the upper housing 101 is connected with the lower housing 102 through threads 6, a groove 103 is formed in the top of the upper housing 101, clamping blocks 104 are fixedly connected to two sides of the groove 103, the clamping blocks 104 are matched with the limiting grooves 201, clamping grooves 4 are formed in two sides of the bottom of the upper housing 101, a mounting plate 5 is connected to the top of the temperature sensing device 3, sliding grooves 501 are formed in two sides of the mounting plate 5, spout 501 runs through the upper and lower both sides of mounting panel 5, two outside fixedly connected with springs 502 of mounting panel 5 are kept away from to spout 501, two 502 fixedly connected with slide bars 503 of spring, two 502 one ends of spring and the lateral wall fixed connection of slide bar 503, two 502 other ends of spring and the one end fixed connection of spout 501, the one end fixedly connected with kelly 504 of slide bar 503, slide bar 503 other end fixedly connected with depression bar 505, kelly 504 and draw-in groove 4 cooperation, kelly 504 is at the 5 upsides of mounting panel, depression bar 505 is at the downside of mounting panel 5, slide bar 503 runs through the upper and lower both sides of mounting panel 5, the utility model discloses reached easy to assemble and dismantled temperature detector's purpose.

The side wall of one end of the limiting groove 201 is connected with a first inclined block 203 through a first spring 202, one end of the fixture block 104 is provided with a second inclined block 9, the first inclined block 203 is matched with the second inclined block 9, the bottom side of the horizontal limiting groove 201 is provided with a groove, one end of the first spring 202 is fixedly connected to the bottom of the groove, the other end of the first spring 202 is fixedly connected with the first inclined block 203, two sides of the first inclined block 203 and the second inclined block 9 are provided with inclined planes, one end of the sliding groove 501, far away from the second spring 502, is fixedly connected with a fixed rod 7, one side of the sliding rod 503, near the second spring 502, is provided with a limiting clamping groove 701, the fixed rod 7 is matched with the limiting clamping groove 701, the fixed rod 7 is inserted into the limiting clamping groove 701 to fix the sliding rod 503, the fixed rod 7 and the limiting clamping groove 701 are both polygonal, when the fixed rod 7 and the limiting clamping groove 701 are limited together through the polygonal arrangement, the limiting is tighter, the outer side of the shell 1 is provided with a high temperature resistant layer, for example, the high temperature layer is a layer of metal such as tungsten, which plays a role in protecting the housing 1, the end of the clamping rod 504, which is far away from the second spring 502, is provided with a positioning rod 8, and the size of the positioning rod 8 is smaller than that of the clamping rod 504, so that the clamping rod 504 can conveniently enter the clamping groove 4.

The utility model discloses a method for using and the theory of operation of a temperature-sensitive detector for tunnel fire alarm are as follows, when needing to install the temperature-sensitive detector, firstly, the operator presses the pressure lever 505, the pressure lever 505 drives the slide bar 503 to extrude the second spring 502, the slide bar 503 drives the clamping bar 504 to move along the direction of the second spring 502, then the mounting plate 5 is moved upwards to align the clamping bar 504 with the clamping groove 4, then the clamping bar 504 is limited in the clamping groove 4 by the elastic force recovered by the second spring 502, at the moment, the mounting plate 5 is limited on the upper shell 1, the effect of installing the temperature-sensitive device 3 is realized, then the screw thread between the upper shell 101 and the lower shell 102 is aligned, the upper shell 101 and the lower shell 102 are installed together, then the operator passes the base 2 through the screw thread through hole 204 by the bolt, the bolt is fixed at the top of the tunnel, at the moment, the base 2 is fixed at the top of the tunnel, then the operator aligns the clamping block 104 at the top of the shell 1 with the vertical limiting groove 201, then the shell 1 is moved upwards to enable the fixture block 104 to enter the vertical limiting groove 201, after the fixture block 104 enters the top of the vertical limiting groove 201, the shell 1 is rotated to drive the fixture block 104 to move towards the direction of the first inclined block 203 to enter the horizontal limiting groove 201, at the moment, the fixture block 104 drives the inclined plane at one side of the second inclined block 9 to extrude the inclined plane at one side of the first inclined block 203, the first inclined block 203 extrudes the first spring 202 towards the direction far away from the second inclined block 9, the shell 1 is continuously rotated to enable the second inclined block 9 to enter one end of the horizontal limiting groove 201, then the first inclined block 203 is driven by the elastic force recovered by the first spring 202 to enable the second inclined block 9 to be limited at one end of the horizontal limiting groove 201, at the moment, the shell 1 is limited on the base 2 to achieve the effect that the temperature-sensing detector is installed at the top of the tunnel, when the shell 1 needs to be disassembled, an operator rotates the shell 1 in the opposite direction, the shell 1 drives the inclined plane at the other side of the second inclined block 9 to extrude the inclined plane at the other side of the first inclined block 203, at this moment, the first sloping block 203 extrudes the first spring 202 to move towards the direction away from the second sloping block 9, the shell 1 continues to rotate to enable the second sloping block 9 to reach one end, away from the first sloping block 203, of the horizontal limiting groove 201, then the shell 1 moves downwards, the fixture block 104 enters the vertical limiting groove 201, at this moment, the shell 1 is separated from the base 2, the shell 1 is detached from the top of the tunnel, then the lower shell 1 is rotated to enable the upper shell 101 to be separated from the lower shell 102, then an operator presses the pressing rod 505 to drive the sliding rod 503 to extrude the second spring 502, the sliding rod 503 drives the clamping rod 504 to leave the clamping groove 4, at this moment, the mounting plate 5 and the upper shell 101 are not limited together, the detachment of the temperature sensing device 3 is realized, the detection of the temperature sensing device 3 is convenient, and the detachment of the shell 1 is completed.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a tunnel fire alarm's temperature-sensing detector, includes casing (1), base (2) and temperature-sensing device (3), its characterized in that: the improved temperature sensing device is characterized in that L-shaped limiting grooves (201) are formed in two sides of the base (2), one end of each limiting groove (201) is flush with the bottom of the base (2), the other end of each limiting groove (201) is arranged in the middle of the side wall of the base (2), a bolt through hole (204) is formed in the base (2), the shell (1) comprises an upper shell (101) and a lower shell (102), the upper shell (101) is connected with the lower shell (102) through threads (6), a groove (103) is formed in the top of the upper shell (101), clamping blocks (104) are fixedly connected to two sides of the groove (103), the clamping blocks (104) are matched with the limiting grooves (201), clamping grooves (4) are formed in two sides of the bottom of the upper shell (101), a mounting plate (5) is connected to the top of the temperature sensing device (3), sliding grooves (501) are formed in two sides of the mounting plate (5), keep away from spout (501) outside fixedly connected with spring two (502) of mounting panel (5), spring two (502) fixedly connected with slide bar (503), the one end fixedly connected with kelly (504) of slide bar (503), slide bar (503) other end fixedly connected with depression bar (505), kelly (504) with draw-in groove (4) cooperation.

2. The temperature-sensitive detector for a tunnel fire alarm according to claim 1, wherein: the side wall of one end of the limiting groove (201) is internally connected with a first inclined block (203) through a first spring (202), one end of the clamping block (104) is provided with a second inclined block (9), and the first inclined block (203) is matched with the second inclined block (9).

3. The temperature-sensitive detector for a tunnel fire alarm according to claim 1, wherein: one end, far away from the second spring (502), of the sliding groove (501) is fixedly connected with a fixing rod (7), one side, close to the second spring (502), of the sliding rod (503) is provided with a limiting clamping groove (701), and the fixing rod (7) is matched with the limiting clamping groove (701).

4. The temperature-sensitive detector for a tunnel fire alarm according to claim 3, wherein: the fixed rod (7) and the limiting clamping groove (701) are both polygonal.

5. The temperature-sensitive detector for a tunnel fire alarm according to claim 1, wherein: and a high-temperature resistant layer is arranged on the outer side of the shell (1).

6. The temperature-sensitive detector for a tunnel fire alarm according to claim 1, wherein: and a positioning rod (8) is arranged at one end of the clamping rod (504) far away from the second spring (502).