Gas alarm instrument with magnetic attraction fixing structure

Abstract

The utility model discloses a gas alarm apparatus with a magnetic attraction fixing structure, which comprises a shell, a detector, a cover body and a mounting plate, and is characterized in that the shell is provided with an inner cavity, a positioning mechanism is arranged in the inner cavity, and the bottom of the shell is provided with a first clamping groove; the detector is detachably installed in the positioning mechanism, the lower portion of the detector is fixedly connected with a detection head through a connecting column, and the connecting column is embedded into the first clamping groove so that the detection head can be located outside the shell; the cover body detachably covers the surface of the shell, a second clamping groove is formed in the cover body, and the connecting column is embedded into the second clamping groove; the mounting plate is fixedly connected with the bottom surface of the shell, the mounting plate is provided with an annular magnetic attraction part, the shell is located in the magnetic attraction part, and the end face of the shell can be fixed to the magnetic attraction part in a magnetic attraction mode. And through magnetic attraction fixation between the magnetic attraction part and the cover body, the connection stability between the shell and the cover body can be improved while the disassembly is convenient, and external protection of the detector is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustible gas alarm field, especially in a kind of gas alarm with magnetic attraction fixed structure. BACKGROUND

[0002] Gas alarm is gas leakage detection alarm instrument. When gas leaks in industrial environment, gas alarm detects that gas concentration reaches the critical point set by explosion or poisoning alarm, and gas alarm will send alarm signal. The utility model discloses combustible gas concentration alarm in application No. CN202021819578.7, including alarm main part and fixed hanger, the alarm main part is composed of upper cover and lower cover, the alarm is the conventional design structure of existing, without protection structure, it is easy to cause gas detection sensor to be damaged by external damage and lead to damage in use. The common protection mechanism is often wrapped around gas alarm, which is not convenient to install. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art. To this end, the utility model provides a kind of gas alarm with magnetic attraction fixed structure, which can improve protection effect.

[0004] According to the gas alarm with magnetic attraction fixed structure of the first aspect embodiment of the utility model, including shell, detector, cover body and mounting plate, the shell has inner cavity, the inner cavity is built-in with positioning mechanism, the bottom of the shell is provided with first clamping groove;Detector is detachably installed in the positioning mechanism, and the lower portion of the detector is fixedly connected with detection head through connecting column, and the connecting column is embedded in the first clamping groove, so that the detection head is located outside the shell;Cover body is detachably covered on the surface of the shell, and the cover body is provided with second clamping groove, and the connecting column is embedded in the second clamping groove;Mounting plate and the bottom surface of the shell are fixedly connected, the mounting plate is provided with annular magnetic attraction part, the shell is located inside the magnetic attraction part, and the end surface of the shell can be magnetically attracted and fixed with the magnetic attraction part.

[0005] According to the gas alarm with magnetic attraction fixed structure of the utility model embodiment, at least has following beneficial effects: through the magnetic attraction between magnetic attraction part and cover body, it is convenient to disassemble, and also can improve the connection stability between shell and cover body, realizes the external protection of detector.

[0006] According to some embodiments of the utility model, the mounting plate and the cover body are integrally formed, the mounting plate is provided with annular groove, and the magnetic attraction part is embedded in the groove, so that the end surface of the cover body and the surface of the mounting plate are attached.

[0007] According to some embodiments of the utility model, the end surface of the cover is provided with a fixedly connected magnetic ring, and the magnetic ring can be magnetically connected with the magnetic attraction part.

[0008] According to some embodiments of the utility model, the lower part of the shell is provided with a first mounting shell, the lower part of the cover is provided with a second mounting shell, the first mounting shell and the second mounting shell can be spliced and wrap the connecting column, the first mounting shell and the second mounting shell are detachably connected with a filter screen, and the filter screen wraps the detection head.

[0009] According to some embodiments of the utility model, the end part of the first mounting shell and the second mounting shell is provided with a first threaded part, the upper end of the filter screen is provided with a connecting part, the inner measurement of the connecting part is provided with a second threaded part, and the first threaded part and the second threaded part are screw connected.

[0010] According to some embodiments of the utility model, one side of the shell is provided with a through hole, the detector is connected with an alarm, and the through hole passes through and is externally arranged outside the shell.

[0011] According to some embodiments of the utility model, the positioning mechanism comprises a supporting block and an abutting unit, the supporting block is fixed at the lower part of the inner cavity, the supporting block is provided with a supporting groove, the supporting block is provided with an avoiding groove, the detector is arranged on the supporting groove, and the connecting column is arranged in the avoiding groove; the abutting unit is provided with a plurality of abutting units, the abutting unit has elasticity, one end of the abutting unit is fixedly connected with the inner wall of the inner cavity, and the other end is abutted with the outer wall of the detector; wherein the plurality of abutting units are arranged at intervals around the detector and are wrapped with the supporting block.

[0012] According to some embodiments of the utility model, the abutting unit comprises a connecting block, an abutting block and a spring, the connecting block is fixedly connected with the inner wall of the inner cavity; the abutting block is abutted with the outer wall of the detector; one end of the spring is fixedly connected with the connecting block, and the other end is fixedly connected with the abutting block.

[0013] According to some embodiments of the utility model, the end surface of the cover is provided with a positioning groove, and the positioning convex point is embedded in the positioning groove.

[0014] According to some embodiments of the utility model, the detector is provided with a display screen, the surface of the cover is provided with a transparent window, and the transparent window and the display screen are correspondingly arranged.

[0015] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model makes further illustration below combining with the drawing and example, wherein:

[0017] Figure 1 It is the schematic diagram of gas alarm instrument with magnetic attraction fixed structure of the utility model embodiment;

[0018] Figure 2 It is the schematic diagram of the shell of gas alarm instrument with magnetic attraction fixed structure of the utility model embodiment;

[0019] Figure 3 It is the schematic diagram of the cover of gas alarm instrument with magnetic attraction fixed structure of the utility model embodiment.

[0020] The following is the technical word according to the label of the inclusion between structures:

[0021] 100, shell, 110, inner chamber, 1111, support block, 1111a, support groove, 1111b, avoidance slot, 1112, abutment unit, 1112a, connecting block, 1112b, abutment block, 1112c, spring, 120, first clamping groove, 130, first mounting shell, 140, through hole,

[0022] 200, detector, 210, connecting column, 220, detection head,

[0023] 300, cover, 310, second clamping groove, 320, second mounting shell, 330, positioning slot, 340, transparent window, 50, magnetic ring,

[0024] 400, mounting plate, 410, magnetic attraction part, 420, recess, 430, positioning convex point,

[0025] 500, filter screen, 510, connecting portion,

[0026] 600, alarm,

[0027] 700, display screen, DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and can not be understood as the limitation of the utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The gas alarm with magnetic fixing structure according to an embodiment of the present invention includes a housing 100, a detector 200, a cover 300, and a mounting plate 400. The housing 100 has an inner cavity 110, in which a positioning mechanism is built-in. A first slot 120 is provided at the bottom of the housing 100. The detector 200 is detachably installed in the positioning mechanism. A detection head 220 is fixedly connected to the bottom of the detector 200 via a connecting post 210. The connecting post 210 is embedded in the first slot 120 so that the detection head 220 is located outside the housing 100. The cover 300 is detachably covered on the surface of the housing 100. The cover 300 is provided with a second slot 310, in which the connecting post 210 is embedded. The mounting plate 400 is fixedly connected to the bottom surface of the housing 100. The mounting plate 400 is provided with an annular magnetic part 410. The housing 100 is located inside the magnetic part 410, and the end face of the housing 100 can be magnetically fixed with the magnetic part 410.

[0033] The magnetic attraction between the magnetic part 410 and the cover 300 not only facilitates disassembly but also improves the connection stability between the housing 100 and the cover 300, providing external protection for the detector 200 while ensuring the compactness and reliability of the entire device.

[0034] Preferably, the mounting plate 400 and the cover 300 are integrally formed, and the mounting plate 400 is provided with a recess 420 in the shape of a ring, and the magnetic attraction part 410 is embedded in the recess 420, so that the end surface of the cover 300 and the surface of the mounting plate 400 are flush. The embedded design makes the connection between the cover 300 and the mounting plate 400 more compact, the appearance more simple, and at the same time provides a stable mounting position for the magnetic attraction part 410.

[0035] It should be noted that the end surface of the cover 300 is provided with a fixedly connected magnetic ring 50, and the magnetic ring 50 can be magnetically connected with the magnetic attraction part 410. Through the magnetic attraction between the magnetic ring 50 and the magnetic attraction part 410, the quick fixing and dismounting between the cover 300 and the mounting plate 400 is realized, greatly improving the operation convenience of the user, and at the same time ensuring the stability of the connection, avoiding the loosening of the cover 300 due to external impact or vibration.

[0036] In some embodiments, the lower part of the shell 100 is provided with a first mounting shell 130, and the lower part of the cover 300 is provided with a second mounting shell 320, and the first mounting shell 130 and the second mounting shell 320 can be spliced and wrapped around the connecting column 210, and the first mounting shell 130 and the second mounting shell 320 are detachably connected with a filter screen 500, and the filter screen 500 wraps around the detection head 220. The first mounting shell 130 and the second mounting shell 320 provide physical protection for the connecting column 210, and the filter screen 500 provides physical protection for the detection head 220, and also filters impurities in the air through the filter screen 500, ensuring that the detection head 220 can accurately detect the gas composition and prolong its service life.

[0037] Preferably, the end part of the first mounting shell 130 and the second mounting shell 320 is provided with a first threaded part, the upper end of the filter screen 500 is provided with a connecting part 510, the inner surface of the connecting part 510 is provided with a second threaded part, and the first threaded part and the second threaded part are screw-connected. The threaded connection makes the installation and replacement of the filter screen 500 more convenient and fast, and the user can replace the filter screen 500 at any time according to the actual situation, ensuring that the performance of the gas alarm is not affected.

[0038] In some embodiments, one side of the shell 100 is provided with a through hole 140, and the detector 200 is connected with an alarm 600 which passes through the through hole 140 and is externally exposed outside the shell 100. The alarm 600 can timely send an alarm signal to the outside to remind the user to take measures.

[0039] It needs to be mentioned that the positioning mechanism includes a supporting block 1111 and an abutting unit 1112, the supporting block 1111 is fixed at the lower part of the inner cavity 110, the supporting block 1111 is provided with a supporting groove 1111a, the supporting block 1111 is provided with a avoiding groove 1111b, the detector 200 is arranged on the supporting groove 1111a, and the connecting column 210 is arranged in the avoiding groove 1111b; the abutting unit 1112 is provided with a plurality of abutting units 1112, the abutting unit 1112 has elasticity, one end of the abutting unit 1112 is fixedly connected with the inner wall of the inner cavity 110, and the other end is abutted with the outer wall of the detector 200; wherein the plurality of abutting units 1112 are arranged at intervals around the detector 200 and wrap the detector 200 in cooperation with the supporting block 1111.

[0040] The detector 200 is overlapped on the supporting block 1111, the avoiding groove 1111b is used for placing the connecting column 210, at the same time, the detector 200 is pressed to the supporting block 1111 by using the plurality of elastic abutting units 1112, the detector 200 is clamped in cooperation with the supporting block 1111, and the stable fixing of the detector 200 is realized through cooperation of the elastic abutting unit 1112 and the supporting block 1111, and the installation and dismounting of the detector 200 are facilitated.

[0041] Preferably, the abutting unit 1112 includes a connecting block 1112a, an abutting block 1112b and a spring 1112c, the connecting block 1112a is fixedly connected with the inner wall of the inner cavity 110; the abutting block 1112b is abutted with the outer wall of the detector 200; one end of the spring 1112c is fixedly connected with the connecting block 1112a, and the other end is fixedly connected with the abutting block 1112b. The abutting unit 1112 has good elastic buffering capacity, can adapt to detectors 200 of different sizes, and ensures the stability of the detector 200 in the inner cavity 110.

[0042] In order to more conveniently install the cover body 300 and the shell 100, the end surface of the cover body 300 is provided with a positioning groove 330, the mounting plate 400 is provided with a positioning convex point 430, and the positioning convex point 430 is embedded in the positioning groove 330. The connection and cooperation between the positioning convex point 430 and the positioning groove 330 not only improve the connection precision between the cover body 300 and the mounting plate 400, but also ensure that the cover body 300 can be quickly aligned during installation, and the assembly efficiency is improved.

[0043] Preferably, the detector 200 is provided with a display screen 700, the surface of the cover body 300 is provided with a transparent window 340, and the transparent window 340 and the display screen 700 are correspondingly arranged. The user can directly observe the detection data on the display screen 700 through the transparent window 340, without opening the cover body 300, which not only facilitates user operation, but also ensures the sealing performance and protection performance of the device.

[0044] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A gas alarm with magnetic attraction fixing structure, characterized in that, The utility model relates to a detector, including: The shell (100) has the inner chamber (110), and the inner chamber (110) is built-in positioning mechanism, and the bottom of shell (100) is provided with first clamping slot (120); The detector (200) is detachably installed in the positioning mechanism, and the lower portion of the detector (200) is fixedly connected with the detection head (220) through the connecting column (210), and the connecting column (210) is embedded in the first clamping slot (120), so that the detection head (220) is located outside the shell (100); The cover (300) is detachably covered on the surface of the shell (100), and the cover (300) is provided with a second clamping slot (310), and the connecting column (210) is embedded in the second clamping slot (310); The mounting plate (400) is fixedly connected with the bottom surface of the shell (100), and the mounting plate (400) is provided with a ring-shaped magnetic attraction part (410), and the shell (100) is located inside the magnetic attraction part (410), and the end surface of the shell (100) can be magnetically attracted and fixed with the magnetic attraction part (410).

2. The gas alarm instrument with magnetic attraction fixing structure according to claim 1, characterized in that, The mounting plate (400) and the cover (300) are integrally formed, and the mounting plate (400) is provided with a ring-shaped groove (420), and the magnetic attraction part (410) is embedded in the groove (420), so that the end surface of the cover (300) is attached to the surface of the mounting plate (400).

3. The gas alarm instrument with magnetic attraction fixing structure according to claim 1 or 2, characterized in that, The end surface of the cover (300) is provided with a fixedly connected magnetic ring (50), and the magnetic ring (50) can be magnetically connected with the magnetic attraction part (410).

4. The gas alarm with magnetic attraction fixing structure according to claim 1, characterized in that, The lower portion of the shell (100) is provided with a first mounting shell (130), and the lower portion of the cover (300) is provided with a second mounting shell (320), and the first mounting shell (130) and the second mounting shell (320) can be spliced and wrapped around the connecting column (210), and the first mounting shell (130) and the second mounting shell (320) are detachably connected with a filter screen (500), and the filter screen (500) wraps around the detection head (220).

5. The gas alarm instrument with magnetic attraction fixing structure according to claim 4, characterized in that, The end portion of the first mounting shell (130) and the second mounting shell (320) is provided with a first threaded portion, and the upper end of the filter screen (500) is provided with a connecting portion (510), and the inner surface of the connecting portion (510) is provided with a second threaded portion, and the first threaded portion and the second threaded portion are threadedly connected.

6. The gas alarm with magnetic fixing structure according to claim 1, characterized in that, One side of the shell (100) is provided with a through hole (140), and the detector (200) is connected with an alarm (600), and the alarm (600) passes through the through hole (140) and is externally located outside the shell (100).

7. The gas alarm with magnetic fixing structure according to claim 1, characterized in that, The positioning mechanism includes: The supporting block (1111) is fixedly connected with the lower portion of the inner chamber (110), and the supporting block (1111) is provided with a supporting groove (1111a), and the supporting block (1111) is provided with an avoiding groove (1111b), and the detector (200) is arranged on the supporting groove (1111a), and the connecting column (210) is built-in the avoiding groove (1111b). The abutting units (1112) are provided with elasticity, one end of the abutting units (1112) is fixedly connected with the inner wall of the inner cavity (110), and the other end is abutted with the outer wall of the detector (200); The plurality of abutting units (1112) are arranged at intervals around the detector (200) and cooperated with the supporting blocks (1111) to wrap the detector (200).

8. The gas alarm instrument with magnetic attraction fixing structure according to claim 7, characterized in that, The abutting units (1112) comprise: The connecting blocks (1112a) are fixedly connected with the inner wall of the inner cavity (110); The abutting blocks (1112b) are abutted with the outer wall of the detector (200); The springs (1112c) have one end fixedly connected with the connecting blocks (1112a) and the other end fixedly connected with the abutting blocks (1112b).

9. The gas alarm with magnetic fixing structure according to claim 1, characterized in that, The end surface of the cover body (300) is provided with a positioning groove (330), the mounting plate (400) is provided with a positioning convex point (430), and the positioning convex point (430) is embedded in the positioning groove (330).

10. The gas alarm with magnetic fixing structure according to claim 1, characterized in that, The detector (200) is provided with a display screen (700), the surface of the cover body (300) is provided with a transparent window (340), and the transparent window (340) and the display screen (700) are correspondingly arranged.

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