Portable PM2.5 detector

Abstract

The utility model discloses a portable PM2.5 detector, which relates to the technical field of air detection and specifically comprises a detector, a battery accommodating bin is arranged at the bottom of the rear surface of the detector, a bottom block is slidably connected in the battery accommodating bin in the front-back direction, and a battery is placed in the battery accommodating bin and located above the bottom block. An elastic element is arranged between the bottom surface of the bottom block and the battery accommodating bin, and a rear cover for sealing the open end of the battery accommodating bin is arranged at the position, close to the rear surface of the detector, of the battery accommodating bin. Through the arrangement of the detector, the battery, the bottom block, the elastic element and the rear cover, when the battery of the detector needs to be replaced, the rear cover is opened, and the battery can be pushed out of a part of the battery accommodating bin under the pushing of the elastic element through the bottom block, so that the battery can be conveniently taken out of the battery accommodating bin by hands, the battery is convenient to disassemble, and the replacement efficiency is improved. And the purpose of replacing the battery is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air detection, in particular to a portable PM2.5 detector. Background Art

[0002] PM2.5 air quality detector is a special detection instrument used to measure the PM2.5 (respirable particulate matter) value in the air. It is suitable for the determination of public place environment and atmospheric environment, and can also be used for the evaluation and analysis of the purification efficiency of air purifiers.

[0003] Existing PM2.5 detectors are available in fixed and mobile types depending on demand, and the mobile ones are generally smaller in size and easier to carry, and are usually placed in a storage box. When the detector is in use, it is taken out to detect the surrounding air through the air inlet. A back cover is provided on the rear surface of the detector. The battery can be taken out of the battery storage compartment by opening the back cover, which facilitates battery replacement. However, since the battery is tightly stuck in the battery storage compartment and the surface of the battery is tightly combined with the battery storage compartment, when opening the back cover, the battery needs to be taken out by hand, which is time-consuming and laborious. Utility Model Content

[0004] In view of the above background technology, the shortcomings and defects of the prior art PM2.5 detector in that the battery is inconvenient to disassemble.

[0005] The utility model discloses a portable PM2.5 detector, including the detector, a battery accommodating compartment is provided at the bottom of the rear surface of the detector, a bottom block is slidably connected to the battery accommodating compartment in the front-to-back direction, a battery is placed in the battery accommodating compartment and is located above the bottom block, an elastic element is provided between the bottom surface of the bottom block and the battery accommodating compartment, and a rear cover for sealing the open end of the battery accommodating compartment is provided at a position close to the battery accommodating compartment and the rear surface of the detector.

[0006] Furthermore, a slide groove is provided at a position on the rear surface of the detector corresponding to the battery storage compartment, the slide groove is connected to the battery storage compartment, and the rear cover is slidably arranged in the slide groove.

[0007] Furthermore, a socket is provided on the bottom wall of the slide slot, and an L-shaped block is slidably connected to the socket. The horizontal portion of the L-shaped block is slidably arranged in the socket in the forward and backward directions, and the upper end surface of the vertical portion of the L-shaped block contacts the lower end surface of the rear cover.

[0008] Furthermore, a sliding groove is provided on the side wall of the battery accommodating compartment, a snap-in block is slidably connected inside the sliding groove, a spring is provided between the lower end surface of the snap-in block and the side wall of the sliding groove, and a driving inclined surface is provided on one end of the snap-in block protruding from the side wall of the battery accommodating compartment; a snap-in groove is provided at a position corresponding to the bottom block and the snap-in block.

[0009] Furthermore, a driving groove is provided on the rear surface of the card block, and the side wall of the driving groove close to the spring is a first inclined surface, and one end of the horizontal part of the L-shaped block is provided with a second inclined surface adapted to the inclined surface; the top of the socket is provided with an L-shaped card block vertical part accommodating groove connected to the socket.

[0010] Furthermore, guide rails are provided on both the left and right sides of the rear cover, and guide grooves are provided at positions corresponding to the side walls of the slide groove and the guide grooves, which extend all the way to the side walls of the battery compartment, and the rear cover is slidably connected to the detector through the guide rails and the guide grooves.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model is provided with a detector, a battery, a bottom block, an elastic element, and a back cover. When the battery of the detector needs to be replaced, the back cover is opened, and the battery can be pushed out of a part of the battery accommodating compartment under the push of the elastic element through the bottom block, so that the battery can be conveniently taken out of the battery accommodating compartment by hand, thereby achieving the purpose of facilitating the removal of the battery and replacing the battery.

[0013] 2. The utility model provides an L-shaped card block, a detector, and a back cover. After the battery is installed in the battery accommodating compartment, the back cover is slid upward so that the back cover seals the opening of the battery accommodating compartment. Then, the L-shaped card block is slidably connected to the jack so that the upper end surface of the vertical portion of the L-shaped card block contacts the lower end surface of the back cover, so that the position of the back cover is locked to prevent the back cover from being opened due to external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the rear cover of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the detector of the utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping block of the utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the battery storage compartment of the utility model;

[0021] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the sliding groove of the utility model;

[0022] Figure 8 This is a schematic diagram of the three-dimensional structure of the L-shaped clamping block and the clamping block of the utility model;

[0023] Fig. 9 It is an enlarged schematic diagram of the local structure of the utility model.

[0024] In the figure: 1. detector; 2. battery storage compartment; 3. bottom block; 4. battery; 5. elastic element; 6. back cover; 7. slide groove; 8. jack; 9. L-shaped card block; 10. slide groove; 11. card block; 12. spring; 13. driving inclined surface; 14. driving groove; 15. first inclined surface; 16. second inclined surface; 17. L-shaped card block vertical portion storage groove. DETAILED DESCRIPTION

[0025] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0026] See also Figure 1-9 The portable PM2.5 detector described in the utility model includes a detector 1, a battery accommodating compartment 2 is provided at the bottom of the rear surface of the detector 1, a bottom block 3 is slidably connected to the battery accommodating compartment 2 in the front-to-back direction, a battery 4 is placed in the battery accommodating compartment 2 and is located above the bottom block 3, an elastic element 5 is provided between the bottom surface of the bottom block 3 and the battery accommodating compartment 2, and a rear cover 6 for sealing the open end of the battery accommodating compartment 2 is provided at a position close to the battery accommodating compartment 2 and the rear surface of the detector 1.

[0027] When the battery 4 of the detector 1 needs to be removed, the rear cover 6 is opened, and the bottom block 3 moves upward from the battery compartment 2 under the push of the elastic element 5, thereby pushing the battery 4 in the battery compartment 2 to move upward, making it easy to take out the battery 4 in the battery compartment 2.

[0028] See also Figure 3 , 4 , 5, 6, 7 and 9, in order to facilitate the opening of the rear cover 6, in the present embodiment, a slide groove 7 is provided on the rear surface of the detector 1 at a position corresponding to the battery accommodating compartment 2, the slide groove 7 is connected with the battery accommodating compartment 2, and the rear cover 6 is slid up and down in the slide groove 7. When the rear cover 6 needs to be opened, the rear cover 6 is slid downward so that the rear cover 6 opens the opening of the battery accommodating compartment 2, so as to facilitate the removal of the battery 4.

[0029] See also Figure 3 , 4 , 5, 6 and 7, in order to increase the stability of the rear cover 6 moving in the slide groove 7, in the present embodiment, guide rails are provided on the left and right sides of the rear cover 6, and guide grooves are provided at positions corresponding to the side walls of the slide groove 7 and the guide grooves, and the guide grooves extend all the way to the side walls of the battery accommodating compartment 2. The rear cover 6 is connected to the detector 1 in an up and down direction through the guide rails and the guide grooves. When the rear cover 6 is slid, the guide rails slide in the guide grooves, thereby increasing the stability of the movement of the rear cover 6.

[0030] See also Figure 3 , 4 , 5, 6 and 7, in order to lock the position of the rear cover 6 when the rear cover 6 is in a position to slide upward to seal the battery accommodating compartment 2, in this embodiment, a socket 8 is provided on the bottom wall of the slide groove 7, and an L-shaped block 9 is connected to the socket 8 for front-to-back sliding. The horizontal portion of the L-shaped block 9 is slidably arranged in the socket 8 in the front-to-back direction, and the upper end surface of the vertical portion of the L-shaped block 9 abuts against the lower end surface of the rear cover 6; when the rear cover 6 slides upward in the slide groove 7 to seal the opening of the battery accommodating compartment 2, the horizontal portion of the L-shaped block 9 is inserted into the socket 8, so that the vertical portion of the L-shaped block 9 abuts against the rear cover 6, thereby locking the position of the rear cover 6 and preventing the rear cover 6 from sliding open due to external force.

[0031] See also Figure 4 , 5 , 6, 7, 8 and 9. When the detector 1 is in normal use, since the battery 4 is located in the battery accommodating compartment 2, it will be pushed backward by the elastic element 5, causing the back cover 6 to bear the force in the front-to-back direction, causing the sliding connection between the back cover 6 and the slide groove 7 to be damaged due to the long-term bearing of the force in the front-to-back direction. In order to solve this problem, in this embodiment, a sliding groove 10 is provided on the side wall of the battery accommodating compartment 2, and a clamping block 11 is slidably connected inside the sliding groove 10. A spring 12 is provided between the lower end surface of the clamping block 11 and the side wall of the sliding groove 10. A driving inclined surface 13 is provided on one end of the clamping block 11 protruding from the side wall of the battery accommodating compartment 2; a clamping groove is provided at a position corresponding to the clamping block 11; when the battery 4 is placed The bottom block 3 is inserted into the battery accommodating chamber 2 and pressure is applied to the bottom block 3, so that the bottom block 3 compresses the elastic element 5. When the bottom block 3 contacts the clamping block 11, the clamping block 11 is driven to enter the sliding groove 10 by the driving inclined surface 13 of the clamping block 11. When the clamping groove of the bottom block 3 is docked with the clamping block 11, the clamping block 11 extends outward under the action of the spring 12 and enters the clamping groove of the bottom block 3 to fix the bottom block 3. At this time, the battery 4 is just placed in place in the battery accommodating chamber 2, and then the back cover 6 is slid upward to seal the battery accommodating chamber 2; because the bottom block 3 is restricted by the clamping block 11, the force of the elastic element 5 on the bottom block 3 will no longer be transmitted to the battery 4, and then the back cover 6 is no longer pushed by the battery 4, thereby increasing the service life of the back cover 6.

[0032] See also Figure 4 , 5 , 6, 8 and 9, in order to enable the clamping block 11 to move to the battery accommodating compartment 2 and be inserted into the clamping groove of the bottom block 3, so as to drive the L-shaped clamping block 9 to move to the position locking the rear cover 6, in this embodiment, a driving groove 14 is provided on the rear surface of the clamping block 11, and the side wall of the driving groove 14 close to the spring 12 is a first inclined surface 15, and one end of the horizontal portion of the L-shaped clamping block 9 is provided with a second inclined surface 16 adapted to the inclined surface; the top end of the socket 8 is provided with an L-shaped clamping block vertical portion accommodating groove 17 connected to the socket 8.

[0033] When in use, when the rear cover 6 needs to be opened, since the vertical portion of the L-shaped card block 9 locks the rear cover 6, it is necessary to press the L-shaped card block 9 downward, so that the horizontal portion of the L-shaped card block 9 continues to move toward the inside of the insertion hole 8 and then enters the sliding groove 10, and the vertical portion of the L-shaped card block 9 completely enters the L-shaped card block vertical portion accommodating groove 17. When the horizontal portion of the L-shaped card block 9 enters the sliding groove 10, it enters the driving groove 14 of the clamping block 11 at the same time, and the second inclined surface 16 of the horizontal portion of the L-shaped card block 9 is aligned with the driving groove 14. The first inclined surface 15 of 14 cooperates so that the card block 11 moves downward to compress the spring 12, thereby making the card block 11 disengage from the card slot of the bottom block 3; at this time, the vertical portion of the L-shaped card block 9 is completely hidden in the vertical portion accommodating groove 17 of the L-shaped card block, and does not interfere with the downward sliding of the rear cover 6. The rear cover 6 is slid downward to open the opening of the battery accommodating compartment 2, and then the battery 4 can be pushed out of a part of the battery accommodating compartment 2 under the push of the elastic element 5 through the bottom block 3, so that the battery 4 can be conveniently taken out; when installing the battery When the battery 4 is inserted into the battery compartment 2, the bottom block 3 is not restricted by the clamping block 11 at this time, and the battery 4 needs to be pressed downward so that the rear cover 6 can slide upward to close the opening of the battery compartment 2. When the rear cover 6 slides upward to completely close the battery compartment 2, the L-shaped clamping block 9 is not covered by the rear cover 6. The clamping block 11 moves into the battery compartment 2 under the action of the spring 12 and is inserted into the clamping slot of the bottom block 3. At the same time, the first inclined surface 15 of the driving slot 14 of the clamping block 11 and the L-shaped clamping block 9 are The second inclined surface 16 cooperates to drive the L-shaped card block 9 to move backward, so that the horizontal part of the L-shaped card block 9 moves to the outside of the insertion hole 8, and the vertical part of the L-shaped card block 9 is ejected from the L-shaped card block vertical part accommodating groove 17, and contacts with the lower end surface of the rear cover 6, locking the position of the rear cover 6, and realizing the upward sliding movement of the rear cover 6 to the position of the sealed battery accommodating compartment 2, the card block 11 is automatically inserted into the card groove of the bottom block 3, and at the same time, the vertical part of the L-shaped card block 9 is ejected from the L-shaped card block vertical part accommodating groove 17 to lock the position of the rear cover 6.

[0034] When using the utility model: through the arrangement of the bottom block 3 and the elastic element 5, when the rear cover 6 is opened, the battery 4 is pushed out of a part of the battery accommodating compartment 2 by the elastic element 5 through the bottom block 3, so as to facilitate the removal of the battery 4. At the same time, through the arrangement of the L-shaped card block 9 and the card connection block 11, when the rear cover 6 slides upward to completely seal the battery accommodating compartment 2, the card connection block 11 is automatically inserted into the card slot of the bottom block 3 under the action of the spring 12, so as to prevent the bottom block 3 from pushing the rear cover 6 through the battery 4, so that the rear cover 6 can bear the front and rear forces when in use; when the card connection block 11 is inserted into the card slot of the bottom block 3, it can drive the vertical part of the L-shaped card block 9 to be ejected from the accommodating groove 17 of the vertical part of the L-shaped card block, so as to lock the position of the rear cover 6.

[0035] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A portable PM2.5 detector, comprising a detector (1), characterized in that: A battery storage compartment (2) is provided at the bottom of the rear surface of the detector (1), a bottom block (3) is slidably connected in the battery storage compartment (2) in the front-rear direction, a battery (4) is placed in the battery storage compartment (2) and is located above the bottom block (3), an elastic element (5) is provided between the bottom surface of the bottom block (3) and the battery storage compartment (2), and a rear cover (6) for sealing the open end of the battery storage compartment (2) is provided at a position close to the battery storage compartment (2) and the rear surface of the detector (1).

2. The portable PM2.5 detector according to claim 1, characterized in that: A slide groove (7) is provided on the rear surface of the detector (1) at a position corresponding to the battery storage compartment (2); the slide groove (7) is connected to the battery storage compartment (2); and the rear cover (6) is slidably arranged in the slide groove (7).

3. The portable PM2.5 detector according to claim 2 is characterized in that: The bottom wall of the slide groove (7) is provided with an insertion hole (8), and an L-shaped block (9) is slidably connected in the insertion hole (8). The horizontal part of the L-shaped block (9) is slidably arranged in the insertion hole (8) in the front-back direction, and the upper end surface of the vertical part of the L-shaped block contacts the lower end surface of the rear cover (6).

4. The portable PM2.5 detector according to claim 1, characterized in that: A sliding groove (10) is provided on the side wall of the battery accommodating compartment (2); a clamping block (11) is slidably connected inside the sliding groove (10); a spring (12) is provided between the lower end surface of the clamping block (11) and the side wall of the sliding groove (10); and a driving inclined surface (13) is provided on one end of the clamping block (11) protruding from the side wall of the battery accommodating compartment (2); and a clamping groove is provided at a position corresponding to the clamping block (11) of the bottom block (3).

5. The portable PM2.5 detector according to claim 4, characterized in that: A driving groove (14) is provided on the rear surface of the clamping block (11); a side wall of the driving groove (14) close to the spring (12) is a first inclined surface (15); a second inclined surface (16) adapted to the inclined surface is provided at one end of the horizontal portion of the L-shaped block; and a vertical portion accommodating groove (17) of the L-shaped clamping block connected to the insertion hole (8) is provided at the top end of the insertion hole (8).

6. The portable PM2.5 detector according to claim 2, characterized in that: Guide rails are arranged on both left and right sides of the rear cover (6), and guide grooves are provided on the side walls of the slide groove (7) at positions corresponding to the guide rails. The guide grooves extend all the way to the side walls of the battery storage compartment (2), and the rear cover (6) is slidably connected to the detector (1) via the guide rails and the guide grooves.

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