Gas sensor for air purifier

Abstract

The utility model relates to the technical field of gas sensors, and discloses a gas sensor for an air purifier, which comprises a circular plate, pins are fixedly mounted at the bottom of the circular plate, a protective cover is movably connected in the circular plate, and a side cavity positioned on the left side of the protective cover is formed in the bottom of the circular plate; the protection mechanism is arranged in the side cavity; wherein the protection mechanism comprises a first spring. By arranging the protective cover, the first spring, the plug pin and the pull rod, the pull rod is pulled to move leftwards, the plug pin extrudes the first spring to move leftwards, when the plug pin moves to the interior of the side cavity, the protective cover is inserted into the circular plate at the moment, and due to the elastic force recovery effect of the first spring, the safety of the circular plate is improved. And the bolt moves leftwards to be inserted into the protective cover, so that the protective cover is in a fixed state, the purpose of protecting the pins is achieved, and the protection effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sensors, and more specifically, to a gas sensor for an air purifier. Background Art

[0002] Gas sensors are sensors used to detect gas concentration and composition. They play an extremely important role in environmental protection and safety supervision.

[0003] Gas sensors are often installed during the production and processing of air purifiers. Although existing gas sensors can detect gas concentrations during actual use, the pins of existing gas sensors generally have no protective devices. If the gas sensor is not installed on the air purifier, the pins without protective devices are prone to bending or deformation, thereby affecting the subsequent use of the gas sensor. Therefore, it is necessary to improve it. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a gas sensor for an air purifier, which has the advantage of protecting pins.

[0005] To achieve the above object, the utility model provides the following technical solution: a gas sensor for an air purifier, comprising:

[0006] A circular plate, wherein a pin is fixedly mounted on the bottom of the circular plate, a protective cover is movably connected inside the circular plate, and a side cavity is opened at the bottom of the circular plate and located on the left side of the protective cover;

[0007] A protection mechanism, wherein the protection mechanism is arranged inside the side cavity;

[0008] Among them, the protective mechanism includes a first spring, the left side of the first spring is fixedly connected to the left side of the side cavity, the other end of the first spring is fixedly connected to a latch, the outer surface of the latch is movably connected to the inner surface of the side cavity, the right end of the latch passes through the protective cover and extends to the inside of the protective cover, the left side of the bottom of the latch is fixedly connected to a pull rod, the pull rod passes through the side cavity and extends to the bottom of the side cavity, and the latch moves to the left to release the fixing effect on the protective cover.

[0009] As a preferred technical solution of the utility model, a dust cover is fixedly installed on the top of the circular plate, and a gas sensor body located inside the dust cover is fixedly installed on the top of the circular plate.

[0010] As a preferred technical solution of the utility model, a slide groove is provided on the top of the circular plate, and a movable block is movably connected to the inner surface of the slide groove.

[0011] As a preferred technical solution of the utility model, the number of the movable blocks is two, and a first cavity is opened inside the two movable blocks, a second spring is fixedly installed inside the first cavity, the other end of the second spring is fixedly connected to a first scraper, the outer surface of the first scraper is movably connected to the outer surface of the dust cover, and the outer surface of the first scraper is movably connected to the inner surface of the first cavity.

[0012] As a preferred technical solution of the utility model, a connecting block is fixedly installed between the movable blocks, a second cavity is opened inside the connecting block, a third spring is fixedly installed on the top of the second cavity, the number of the third springs is two, and the bottoms of the two third springs are fixedly connected with a second scraper, the outer surface of the second scraper is movably connected to the inner surface of the second cavity, and the bottom of the second scraper is movably connected to the top of the dust cover.

[0013] As a preferred technical solution of the utility model, a handle is fixedly installed in the middle of the top of the connecting block, and the outer surface of the handle is rough.

[0014] As a preferred technical solution of the utility model, there are two first scrapers, the two first scrapers have the same size, and the two first scrapers are symmetrical with respect to the center of the dust cover.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a protective cover, a first spring, a latch and a pull rod. When the pull rod is pulled to the left, the latch will squeeze the first spring to move to the left. When the latch moves to the inside of the side cavity, the protective cover is inserted into the inside of the circular plate. Due to the elastic restoring effect of the first spring, the latch moves to the left and is inserted into the inside of the protective cover, so that the protective cover is in a fixed state, thereby achieving the purpose of protecting the pin and improving the protective effect of the device.

[0017] 2. The utility model provides a first scraper, a second scraper and a handle. When the operator holds the handle and rotates it, the two first scrapers and the second scraper will be driven to rotate, so that the two first scrapers and the second scraper respectively scrape dust from the surface and the top of the dust cover, thereby facilitating the scraping of dust from the surface of the dust cover, so that the gas sensor body can quickly detect the concentration of the gas, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the side of the utility model;

[0021] Figure 4 It is a schematic cross-sectional structural diagram of the first scraper of the utility model;

[0022] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] In the figure: 1. round plate; 2. pin; 3. protective cover; 4. side cavity; 5. first spring; 6. latch; 7. dust cover; 8. gas sensor body; 9. slide groove; 10. movable block; 11. first cavity; 12. second spring; 13. first scraper; 14. connecting block; 15. second cavity; 16. third spring; 17. second scraper; 18. handle; 19. pull rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, the utility model provides a gas sensor for an air purifier, comprising:

[0026] A circular plate 1, a pin 2 is fixedly mounted on the bottom of the circular plate 1, a protective cover 3 is movably connected inside the circular plate 1, and a side cavity 4 is opened at the bottom of the circular plate 1 and located on the left side of the protective cover 3;

[0027] A protection mechanism, which is arranged inside the side cavity 4;

[0028] Among them, the protective mechanism includes a first spring 5, the left side of the first spring 5 is fixedly connected to the left side of the side cavity 4, the other end of the first spring 5 is fixedly connected to a latch 6, the outer surface of the latch 6 is movably connected to the inner surface of the side cavity 4, the right end of the latch 6 penetrates the protective cover 3 and extends to the inside of the protective cover 3, the left side of the bottom of the latch 6 is fixedly connected to a pull rod 19, the pull rod 19 passes through the side cavity 4 and extends to the bottom of the side cavity 4, and the latch 6 moves to the left to release the fixing effect on the protective cover 3.

[0029] Pulling the pull rod 19 to the left will cause the pin 6 to squeeze the first spring 5 and move to the left. When the pin 6 moves to the inside of the side cavity 4, the protective cover 3 is inserted into the inside of the circular plate 1. Under the elastic force of the first spring 5, the pin 6 is driven to reset and insert into the inside of the protective cover 3 and fix the protective cover 3, thereby achieving the purpose of protecting the pin 2.

[0030] A dust cover 7 is fixedly mounted on the top of the circular plate 1 , and a gas sensor body 8 located inside the dust cover 7 is fixedly mounted on the top of the circular plate 1 .

[0031] The design of the dust cover 7 plays a role in preventing the gas sensor body 8 from dust.

[0032] A slide groove 9 is provided on the top of the circular plate 1 , and a movable block 10 is movably connected to the inner surface of the slide groove 9 .

[0033] The inner wall of the slide groove 9 is smooth, so that the movable block 10 can move more smoothly.

[0034] Among them, the number of movable blocks 10 is two, and the first cavity 11 is opened inside the two movable blocks 10. The second spring 12 is fixedly installed inside the first cavity 11, and the other end of the second spring 12 is fixedly connected to the first scraper 13. The outer surface of the first scraper 13 is movably connected to the outer surface of the dust cover 7, and the outer surface of the first scraper 13 is movably connected to the inner surface of the first cavity 11.

[0035] When there are objects that are difficult to scrape off on the surface of the dust cover 7 , the first scraper 13 is driven to move left and right under the action of the second spring 12 to pass over the objects that are difficult to scrape off, thereby avoiding damage to the first scraper 13 .

[0036] Among them, a connecting block 14 is fixedly installed between the movable blocks 10, a second cavity 15 is opened inside the connecting block 14, a third spring 16 is fixedly installed on the top of the second cavity 15, the number of the third springs 16 is two, and the bottoms of the two third springs 16 are fixedly connected with a second scraper 17, the outer surface of the second scraper 17 is movably connected to the inner surface of the second cavity 15, and the bottom of the second scraper 17 is movably connected to the top of the dust cover 7.

[0037] The design of the second scraper 17 facilitates the purpose of scraping off the dust attached to the top of the dust cover 7 .

[0038] A handle 18 is fixedly mounted in the middle of the top of the connection block 14 , and the outer surface of the handle 18 is rough.

[0039] The rough design of the outer surface of the handle 18 makes it easier for the operator to hold the handle 18 better.

[0040] There are two first scrapers 13 , the two first scrapers 13 have the same size, and the two first scrapers 13 are symmetrical with respect to the center of the dust cover 7 .

[0041] The design of the two first scrapers 13 can quickly scrape off the dust on the surface of the dust cover 7.

[0042] The working principle and use process of this utility model:

[0043] When the gas sensor body 8 is not installed on the air purifier, pulling the pull rod 19 to the left will cause the pin 6 to squeeze the first spring 5 to move to the left. When the pin 6 moves to the inside of the side cavity 4, the protective cover 3 is inserted into the inside of the circular plate 1. Under the action of the elastic force of the first spring 5, the pin 6 is reset and inserted into the inside of the protective cover 3, so that the protective cover 3 is in a fixed state, thereby realizing the protection of the pin 2 and ensuring the subsequent use effect of the gas sensor body 8.

[0044] When a large amount of dust adheres to the surface of the dust cover 7, the operator holds the handle 18 and rotates it, which will drive the two first scrapers 13 and the second scraper 17 to rotate, thereby causing the two first scrapers 13 and the second scraper 17 to scrape off the dust on the surface and top of the dust cover 7 respectively, thereby facilitating the scraping of dust on the surface of the dust cover 7, so that the gas sensor body 8 can quickly detect the concentration of the gas and send out a signal.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas sensor for an air purifier, characterized in that: Included are: A circular plate (1), wherein a pin (2) is fixedly mounted on the bottom of the circular plate (1), a protective cover (3) is movably connected inside the circular plate (1), and a side cavity (4) is formed at the bottom of the circular plate (1) and is located on the left side of the protective cover (3); A protection mechanism, the protection mechanism being arranged inside the side cavity (4); The protective mechanism comprises a first spring (5), the left side of the first spring (5) is fixedly connected to the left side of the side cavity (4), the other end of the first spring (5) is fixedly connected to a latch (6), the outer surface of the latch (6) is movably connected to the inner surface of the side cavity (4), the right end of the latch (6) passes through the protective cover (3) and extends to the inside of the protective cover (3), the left side of the bottom of the latch (6) is fixedly connected to a pull rod (19), the pull rod (19) passes through the side cavity (4) and extends to the bottom of the side cavity (4), and the latch (6) moves to the left to release the fixing effect on the protective cover (3).

2. The gas sensor for air purifier according to claim 1, characterized in that: A dust cover (7) is fixedly mounted on the top of the circular plate (1), and a gas sensor body (8) located inside the dust cover (7) is fixedly mounted on the top of the circular plate (1).

3. The gas sensor for air purifier according to claim 1, characterized in that: A sliding groove (9) is provided on the top of the circular plate (1), and a movable block (10) is movably connected to the inner surface of the sliding groove (9).

4. The gas sensor for air purifier according to claim 3, characterized in that: There are two movable blocks (10), each of which has a first cavity (11) formed therein, a second spring (12) being fixedly installed inside the first cavity (11), a first scraper (13) being fixedly connected to the other end of the second spring (12), an outer surface of the first scraper (13) being movably connected to an outer surface of the dust cover (7), and an outer surface of the first scraper (13) being movably connected to an inner surface of the first cavity (11).

5. The gas sensor for air purifier according to claim 3, characterized in that: A connecting block (14) is fixedly installed between the movable blocks (10), a second cavity (15) is opened inside the connecting block (14), a third spring (16) is fixedly installed on the top of the second cavity (15), the number of the third springs (16) is two, the bottoms of the two third springs (16) are fixedly connected to a second scraper (17), the outer surface of the second scraper (17) is movably connected to the inner surface of the second cavity (15), and the bottom of the second scraper (17) is movably connected to the top of the dust cover (7).

6. The gas sensor for air purifier according to claim 5, characterized in that: A handle (18) is fixedly mounted in the middle of the top of the connection block (14), and the outer surface of the handle (18) is rough.

7. The gas sensor for air purifier according to claim 4, characterized in that: There are two first scrapers (13), the two first scrapers (13) have the same size, and the two first scrapers (13) are symmetrical with respect to the center of the dust cover (7).

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