Portable formaldehyde detector

Abstract

The utility model relates to the technical field of formaldehyde detectors, and provides a portable formaldehyde detector which comprises a formaldehyde detector body, the outer side of the formaldehyde detector body is in sliding connection with a protection box, the top of the formaldehyde detector body is provided with a slot, and the inner side of the slot is in sliding fit with a detection probe. An elastic supporting piece is arranged at the bottom end of the inner side of the protection box, a winding piece is arranged on one side of the formaldehyde detection instrument body and comprises a winding wheel, a gear is coaxially and fixedly connected to one end of the winding wheel, a toothed plate is fixedly connected to the top end of the inner side of the protection box, and an elastic piece is arranged at the bottom end of the formaldehyde detection instrument body. The inner side of the protection box is fixedly connected with a limiting seat, and a pushing piece is arranged at the bottom end of the outer side of the protection box. According to the formaldehyde detection instrument, the top of the formaldehyde detection instrument body is pressed downwards to be inserted into the protection box, so that the rolling wheel rotates and the air guide hose of the detection probe is automatically rolled, and the labor amount of workers can be reduced, so that the formaldehyde detection instrument is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of formaldehyde detector technology, specifically to a portable formaldehyde detector. Background Technology

[0002] As people pay more and more attention to their health, they are becoming increasingly concerned about the health of their surrounding work or living environment, especially newly renovated factories or residences, which contain volatile pollutants, among which formaldehyde is the most harmful. As a common pollutant, formaldehyde poses a significant threat to both the environment and human health. Therefore, it is often necessary to test for formaldehyde in living or working spaces to ensure a healthy environment. Currently, portable formaldehyde detectors are used for portability. These detectors usually have a detection head attached to the outside, and the user holds the detection head to test the air in the corresponding space. However, when these instruments are not in use, the detection head is difficult to place and may get tangled with the wiring, interfering with subsequent use.

[0003] A search revealed that Chinese Patent Publication No. CN220690897U discloses "a portable formaldehyde detector, including a protective box, inside which is a formaldehyde detector body that can be vertically raised and lowered. A connecting block is fixedly connected to the upper part of one side wall of the formaldehyde detector body, and a gas guiding hose is fixedly connected to the outside of the connecting block. A detection probe is fixedly connected to the end of the gas guiding hose. A horizontally movable winding drum is provided on one side wall of the formaldehyde detector body below the connecting block. The gas guiding hose can be wound around the winding drum. A corresponding placement groove is opened on the top of the formaldehyde detector body, and the detection probe can be inserted into the inside of the placement groove for fixation."

[0004] However, during the implementation of the relevant technology, the applicant discovered certain technical defects in the aforementioned patent. Although the patent allows the air delivery hose to be wound around the winding drum to avoid the problem of the air delivery hose being too long and affecting its use, the detection probe requires manual rewinding of the air delivery hose onto the winding drum after each use. This does not achieve automatic winding of the air delivery hose, which greatly increases the amount of manual labor and makes it inconvenient to use. In view of this, this utility model proposes a portable formaldehyde detector. Utility Model Content

[0005] This invention proposes a convenient formaldehyde detector that solves the problem of the inability to automatically rewind the air delivery hose in the prior art.

[0006] The technical solution of this utility model is as follows: A portable formaldehyde detector includes a formaldehyde detector body, a protective box slidably connected to the outer side of the formaldehyde detector body, a slot on the top of the formaldehyde detector body, a detection probe slidably fitted inside the slot, the detection probe being connected to the formaldehyde detector body via a gas-conducting hose, an elastic support member for supporting the formaldehyde detector body being provided at the bottom of the inner side of the protective box, a winding member being provided on one side of the formaldehyde detector body, the winding member including a winding wheel for winding the gas-conducting hose of the detection probe, the winding wheel being rotatably connected to the outer side of the formaldehyde detector body, a gear being coaxially fixedly connected to one end of the winding wheel, a toothed plate meshing with the gear being fixedly connected to the top of the inner side of the protective box, an elastic member being provided at the bottom of the formaldehyde detector body, a limiting seat for restricting the movement of the elastic member being fixedly connected to the inner side of the protective box, and a pushing member for driving the elastic member to disengage from the limiting seat being provided at the bottom of the outer side of the protective box.

[0007] Preferably, the top of the protective box is hinged with a cover plate, and the outside of the protective box is fixedly connected with a handle.

[0008] Preferably, the elastic support includes a support plate, a guide rail is fixedly connected to the inner side of the protective box in the vertical direction, one end of the support plate is slidably connected to the guide rail, and two ends of the bottom of the support plate are welded with springs, the bottom ends of the two springs are welded to the bottom wall of the inner side of the protective box.

[0009] Preferably, a guide plate is fixedly connected to one end of the bottom of the formaldehyde detection instrument body, and the guide plate is slidably connected to the guide rail.

[0010] Preferably, the top end of the limiting seat has an arc surface structure, and the bottom end of the limiting seat has a planar structure.

[0011] Preferably, the elastic element includes a slide rod 1, which is slidably connected to the side wall of the formaldehyde detection instrument body. A positioning block is fixedly connected to one end of the slide rod 1, and the positioning block abuts against the limiting seat. A spring 2 is sleeved on the slide rod 1, with one end of the spring 2 abutting against the positioning block and the other end of the spring 2 abutting against the side wall of the formaldehyde detection instrument body.

[0012] Preferably, the formaldehyde detection instrument body has an installation groove on its inner side, and a slider is slidably connected to the inner side of the installation groove. One side of the slider is fixedly connected to the end of the slider rod.

[0013] Preferably, the pushing component includes a slide rod two that penetrates the side wall of the protective box. One end of the slide rod two is fixedly connected to a push block, which abuts against a positioning block by translation. The other end of the slide rod two is fixedly connected to a pressing block. A spring three is sleeved on the slide rod two. One end of the spring three abuts against the pressing block, and the other end of the spring three abuts against the outer wall of the protective box.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. When storing the formaldehyde detection instrument, insert the detection probe into the slot, and then press down on the top of the formaldehyde detection instrument to insert it into the protective box. This will cause the gear to roll down along the toothed plate, which will cause the roller to rotate and automatically rewind the air guide hose of the detection probe. This will reduce manual labor and make it easier to use.

[0016] 2. When storing the formaldehyde detector, press down on the top of the detector to insert it into the protective box. This causes the detector to apply pressure to the support plate and move downwards, compressing the spring and accumulating potential energy until the elastic element moves to the bottom of the limiting seat and is restricted by the limiting seat. This allows the detector to be stably stored inside the protective box, preventing damage from impacts and making it convenient to carry and use. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of a portable formaldehyde detector according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective box of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the winding component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limiting seat of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the elastic element of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the pusher component of this utility model.

[0024] In the diagram: 1. Protective box; 2. Formaldehyde detection instrument body; 3. Cover plate; 4. Handle; 5. Elastic support component; 51. Support plate; 52. Guide rail; 53. Spring 1; 54. Guide plate; 6. Detection probe; 61. Slot; 7. Rewinding component; 71. Rewinding wheel; 72. Gear; 73. Toothed plate; 8. Limiting seat; 9. Elastic component; 91. Slide rod 1; 92. Positioning block; 93. Spring 2; 94. Slider; 95. Mounting groove; 10. Pushing component; 101. Slide rod 2; 102. Push block; 103. Pressing block; 104. Spring 3. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-6 As shown, this embodiment proposes a portable formaldehyde detector, including a formaldehyde detector body 2, a protective box 1 slidably connected to the outside of the formaldehyde detector body 2, a slot 61 opened on the top of the formaldehyde detector body 2, a detection probe 6 slidably fitted inside the slot 61, the detection probe 6 being connected to the formaldehyde detector body 2 through a gas-conducting hose, an elastic support 5 for supporting the formaldehyde detector body 2 provided at the bottom of the inner side of the protective box 1, a cover plate 3 hinged to the top of the protective box 1, and a handle 4 fixedly connected to the outside of the protective box 1; the protective box 1 can store and protect the formaldehyde detector body 2, not only preventing the formaldehyde detector body 2 from being damaged by impact from external objects, but also making it convenient to carry and use.

[0027] A winding component 7 is provided on one side of the formaldehyde detection instrument body 2. The winding component 7 includes a winding wheel 71 for winding the air guide hose of the detection probe 6. The winding wheel 71 is rotatably connected to the outside of the formaldehyde detection instrument body 2. A gear 72 is coaxially fixedly connected to one end of the winding wheel 71. A toothed plate 73 that meshes with the gear 72 is fixedly connected to the top of the inner side of the protective box 1. An elastic element 9 is provided at the bottom of the formaldehyde detection instrument body 2. A limiting seat 8 for restricting the movement of the elastic element 9 is fixedly connected to the inner side of the protective box 1. The top of the limiting seat 8 has an arc surface structure, and the bottom of the limiting seat 8 has a flat structure. A pushing component 10 for driving the elastic element 9 to disengage from the limiting seat 8 is provided at the bottom of the outer side of the protective box 1.

[0028] When storing the formaldehyde detection instrument body 2, insert the detection probe 6 into the slot 61, and then press down on the top of the formaldehyde detection instrument body 2 to insert it into the protective box 1. This causes the gear 72 to roll down along the toothed plate 73, which causes the winding wheel 71 to rotate and automatically wind up the air guide hose of the detection probe 6. This reduces manual labor and makes it easier to use.

[0029] Furthermore, the elastic support 5 includes a support plate 51, a guide rail 52 fixedly connected to the inner side of the protective box 1 in the vertical direction, one end of the support plate 51 slidably connected to the guide rail 52, and springs 53 welded to both ends of the bottom of the support plate 51. The bottom ends of the two springs 53 are welded to the bottom wall of the inner side of the protective box 1. A guide plate 54 is fixedly connected to one end of the bottom of the formaldehyde detection instrument body 2, and the guide plate 54 is slidably connected to the guide rail 52. When the formaldehyde detection instrument body 2 is stored, pressing down on the top of the formaldehyde detection instrument body 2 inserts it into the protective box 1, causing the formaldehyde detection instrument body 2 to apply pressure to the support plate 51 and move downward, compressing the springs 53 and accumulating potential energy until the elastic element 9 moves below the limiting seat 8 and is restricted by the limiting seat 8, thereby allowing the formaldehyde detection instrument body 2 to be stably stored inside the protective box 1.

[0030] Furthermore, the elastic element 9 includes a slide rod 91, which is slidably connected to the side wall of the formaldehyde detection instrument body 2. One end of the slide rod 91 is fixedly connected to a positioning block 92, which abuts against the limiting seat 8. A spring 93 is sleeved on the slide rod 91, with one end of the spring 93 abutting against the positioning block 92 and the other end of the spring 93 abutting against the side wall of the formaldehyde detection instrument body 2. An installation groove 95 is provided on the inner side of the formaldehyde detection instrument body 2, and a slider 94 is slidably connected to the inner side of the installation groove 95. One side of the slider 94 is fixedly connected to the end of the slide rod 91. When storing the formaldehyde detection instrument body 2, press down on the top of the formaldehyde detection instrument body 2 to insert it into the protective box 1. First, the positioning block 92 contacts the top of the limiting seat 8, causing the positioning block 92 to slide under pressure, causing the slide rod 91 to slide into the mounting groove 95. At this time, the spring 93 is compressed and accumulates potential energy. Then, the positioning block 92 follows the formaldehyde detection instrument body 2 and moves downward along the limiting seat 8. When the formaldehyde detection instrument body 2 is completely stored inside the protective box 1, the positioning block 92 moves to the bottom of the limiting seat 8. At this time, the spring 93 releases potential energy, causing the positioning block 92 to move in the opposite direction, so that the positioning block 92 contacts the bottom wall of the limiting seat 8, thereby limiting the upward movement of the positioning block 92 and making the formaldehyde detection instrument body 2 stably stored inside the protective box 1.

[0031] Furthermore, the pushing component 10 includes a slide rod 101 that penetrates the side wall of the protective box 1. One end of the slide rod 101 is fixedly connected to a push block 102, which abuts against the positioning block 92 by translation. The other end of the slide rod 101 is fixedly connected to a pressing block 103. A spring 104 is sleeved on the slide rod 101. One end of the spring 104 abuts against the pressing block 103, and the other end of the spring 104 abuts against the outer wall of the protective box 1.

[0032] Working principle: When the formaldehyde detection instrument body 2 is stored, pressing down on the top of the formaldehyde detection instrument body 2 inserts it into the protective box 1, causing the gear 72 to roll down along the toothed plate 73. This causes the roller 71 to rotate and automatically wind up the air guide hose of the detection probe 6. At the same time, the formaldehyde detection instrument body 2 applies pressure to the support plate 51 and moves downward, causing the spring 53 to be compressed and store potential energy.

[0033] When the positioning block 92 moves downwards following the formaldehyde detection instrument body 2, it first contacts the top of the limiting seat 8, causing the positioning block 92 to slide under pressure. This causes the slide rod 91 to slide into the mounting groove 95. At this time, the spring 93 is compressed and stores potential energy. Then, the positioning block 92 moves downwards along the limiting seat 8 along with the formaldehyde detection instrument body 2. When the formaldehyde detection instrument body 2 is completely retracted into the protective box 1, the positioning block 92 moves to the bottom of the limiting seat 8. At this time, the spring 93 releases potential energy, causing the positioning block 92 to move in the opposite direction, making the positioning block 92 contact the bottom wall of the limiting seat 8. This restricts the upward movement of the positioning block 92, allowing the formaldehyde detection instrument body 2 to be stably retracted into the protective box 1.

[0034] When the formaldehyde detection instrument body 2 is used, the sliding rod 101 slides when the pressing block 103 is applied, causing the pushing block 102 to move closer to the positioning block 92 and apply pressure. This causes the positioning block 92 to slide and disengage from the bottom wall of the limiting seat 8. At this time, the positioning block 92 is no longer restricted by the limiting seat 8, and the spring 53 releases potential energy, causing the support plate 51 to slide upward. This causes the support plate 51 to push the formaldehyde detection instrument body 2 upward from the protective box 1. At the same time, the gear 72 rolls upward along the toothed plate 73, causing the roller 71 to rotate in the opposite direction and release the air guide hose of the detection probe 6. This makes it easy to remove the detection probe 6 for formaldehyde detection. The whole process is convenient to operate and easy to use for the formaldehyde detection instrument body 2.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A portable formaldehyde detector, comprising a formaldehyde detector body (2), a protective box (1) slidably connected to the outer side of the formaldehyde detector body (2), a slot (61) provided on the top of the formaldehyde detector body (2), a detection probe (6) slidably fitted inside the slot (61), the detection probe (6) being connected to the formaldehyde detector body (2) via a gas-conducting hose, characterized in that, The bottom of the inner side of the protective box (1) is provided with an elastic support (5) for supporting the formaldehyde detection instrument body (2). A winding member (7) is provided on one side of the formaldehyde detection instrument body (2). The winding member (7) includes a winding wheel (71) for winding the air guide hose of the detection probe (6). The winding wheel (71) is rotatably connected to the outside of the formaldehyde detection instrument body (2). A gear (72) is coaxially fixedly connected to one end of the winding wheel (71). A toothed plate (73) that meshes with the gear (72) is fixedly connected to the top of the inner side of the protective box (1). An elastic member (9) is provided at the bottom of the formaldehyde detection instrument body (2). A limiting seat (8) for restricting the movement of the elastic member (9) is fixedly connected to the inner side of the protective box (1). A pushing member (10) for driving the elastic member (9) to disengage from the limiting seat (8) is provided at the bottom of the outer side of the protective box (1).

2. The portable formaldehyde detector according to claim 1, characterized in that, The top of the protective box (1) is hinged with a cover plate (3), and a handle (4) is fixedly connected to the outside of the protective box (1).

3. The portable formaldehyde detector according to claim 1, characterized in that, The elastic support (5) includes a support plate (51), and a guide rail (52) is fixedly connected to the inner side of the protective box (1) in the vertical direction. One end of the support plate (51) is slidably connected to the guide rail (52). Springs (53) are welded to both ends of the bottom of the support plate (51), and the bottom ends of the two springs (53) are welded to the bottom wall of the inner side of the protective box (1).

4. A portable formaldehyde detector according to claim 3, characterized in that, A guide plate (54) is fixedly connected to one end of the bottom of the formaldehyde detection instrument body (2), and the guide plate (54) is slidably connected to the guide rail (52).

5. A portable formaldehyde detector according to claim 1, characterized in that, The top of the limiting seat (8) is an arc surface structure, and the bottom of the limiting seat (8) is a planar structure.

6. A portable formaldehyde detector according to claim 5, characterized in that, The elastic element (9) includes a slide rod (91), which is slidably connected to the side wall of the formaldehyde detection instrument body (2). A positioning block (92) is fixedly connected to one end of the slide rod (91), and the positioning block (92) abuts against the limiting seat (8). A spring (93) is sleeved on the slide rod (91), and one end of the spring (93) abuts against the positioning block (92), while the other end of the spring (93) abuts against the side wall of the formaldehyde detection instrument body (2).

7. A portable formaldehyde detector according to claim 6, characterized in that, The formaldehyde detection instrument body (2) has an installation groove (95) on its inner side. A slider (94) is slidably connected to the inner side of the installation groove (95). One side of the slider (94) is fixedly connected to the end of the slider rod (91).

8. A portable formaldehyde detector according to claim 7, characterized in that, The pushing component (10) includes a sliding rod two (101) that penetrates the side wall of the protective box (1). One end of the sliding rod two (101) is fixedly connected to a push block (102). The push block (102) abuts against the positioning block (92) by translation. The other end of the sliding rod two (101) is fixedly connected to a pressing block (103). A spring three (104) is sleeved on the sliding rod two (101). One end of the spring three (104) abuts against the pressing block (103), and the other end of the spring three (104) abuts against the outer wall of the protective box (1).

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