Portable gas detection device convenient dismounting mechanism

Abstract

The utility model relates to gas detection device technical field, concretely for portable gas detection device convenient dismounting mechanism, include: the bottom and the lid, the bottom is opened with positioning hole and limiting hole, the lid is fixed with the positioning pin, and the positioning pin is inserted in the positioning hole, and the lid is opened with the limiting rod installation groove, and the limiting rod installation groove is inserted with the one end of limiting rod in activity, beneficial effect is: when carrying out the split of bottom and lid, hold the handle, lift the card bar upwards, limiting rod can be withdrawn from the limiting hole, then the handle is pulled upwards, the split of bottom and lid can be realized, when carrying out the installation of bottom and lid, the positioning pin is inserted into the positioning hole, then presses the pull rod, the one end of limiting rod can be inserted into the limiting hole again, realizes the installation of bottom and lid, the whole dismounting process, disorder depends on the third party tool, makes the dismounting of bottom and lid more convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of gas detection devices, specifically a convenient assembly and disassembly mechanism for portable gas detection devices. Background Technology

[0002] In the prior art, portable gas detection devices include a housing structure, a main control board, multiple sensor modules, a display and alarm module, and a wireless communication module. The housing structure contains a gas chamber and gas inlet / outlet ports, protecting the main control board and sensors. The main control board includes a chip, LEDs, and buttons. The multiple sensor modules include humidity and heat sensors and gas concentration sensors, as well as additional sensor modules. The display and alarm module includes LEDs, a buzzer, and an OLED display. The wireless communication module includes a wireless serial port module and an antenna. The lower part of the housing uses a cylinder to fix the circuit board designed for the hardware detection system, and the upper part is covered. The circuit board is secured to the base using an embedded sliding cover and screws, preventing short circuits and damage caused by foreign objects falling into the main control board during operation or design. This also provides a dry environment, extending the lifespan of the main control board. The upper part of the casing has a rectangular cavity serving as an air chamber for storing and securing sensors. Annular inlet and outlet pipes are added to both ends of the air chamber to facilitate the flow of the gas to be detected. The left vent pipe is the air inlet, and the right vent pipe is the air outlet. A moisture-absorbing material is embedded in the left vent pipe. Neutral pH level to avoid reactions with acidic or alkaline gases that could affect the measurement of the gas concentration, reducing the impact of moisture in the air on the measurement of the gas concentration, keeping the sensor dry, and maintaining sensor performance; a small air pump is embedded in the right vent pipe, with the air inlet end being the air chamber and the air outlet end being the right vent, accelerating gas flow and preventing air and the gas to be detected from being blocked from flowing into the air chamber due to moisture-absorbing material on the left side of the air chamber, and preventing gas stratification; the main control board includes a microcontroller and a power supply module. The microcontroller receives and processes sensor signals, and drives the display and alarm modules when the gas concentration exceeds a preset threshold. The system includes a wireless communication module and a display and alarm module, comprising an OLED display screen, LED lights, and a buzzer. The OLED display screen shows the gas concentration and humidity index. When the microcontroller determines that the gas concentration or humidity index exceeds a preset threshold, it activates an alarm warning mode. In alarm mode, the LED lights change from green to red, and the buzzer sounds an audible and visual alarm. The wireless communication module transmits the processed humidity index, gas sensor concentration, location flag, and control bits to the receiving end's wireless serial port module and the host computer via a wireless serial port module. The receiving end displays, issues warnings, and adjusts humidity and heat levels based on the received information.

[0003] The housing of the portable gas detection device consists of a cover and a base. A socket and a screw hole are provided on the base, a buckle and a through hole are fixed on the cover. During installation, the cover is buckled on the base, then the buckle on the cover is inserted into the socket through sliding, after insertion, the through hole is aligned with the screw hole, and then a screw passes through the through hole and is tightened in the screw hole, so that the installation of the cover and the base can be realized, and this installation method is relatively stable.

[0004] However, in the prior art, when the cover and the base are assembled and disassembled by means of buckles and screws, a third-party tool such as a screwdriver is required for operation, which results in relatively inconvenient assembly and disassembly between the cover and the base. Utility Model Content

[0005] The purpose of the utility model is to provide a convenient disassembly and assembly mechanism for a portable gas detection device to solve the problems raised in the above background art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution: a convenient disassembly and assembly mechanism for a portable gas detection device, comprising a base and a cover, wherein a positioning hole and a limit hole are opened on the base, a positioning pin is fixed on the cover, the positioning pin is movably inserted into the positioning hole, a limit rod installation groove is opened on the cover, one end of a limit rod is movably inserted into the limit rod installation groove, and the other end of the limit rod is movably inserted into the limit hole.

[0007] Preferably, the limit rod is a rectangular rod structure, one end of the limit rod extending into the limit rod installation groove is movably connected with a first spring plate, the inner wall of the limit rod installation groove is movably connected with a second spring plate, and a spring is fixed between the first spring plate and the second spring plate.

[0008] Preferably, grooves are respectively opened on the end of the limit rod and the inner wall of the limit rod installation groove, the grooves are in a "convex" shaped groove structure, sliding blocks are fixed on the ends of the first spring plate and the second spring plate that are away from each other, the sliding blocks are in a "convex" shaped block structure, and two groups of sliding blocks are respectively movably inserted into two groups of grooves.

[0009] Preferably, a push rod groove is opened on the cover, a push rod is movably inserted into the push rod groove, the push rod is a rectangular rod structure, a wedge-shaped groove is opened on the limit rod, a wedge block is fixed at one end of the push rod, and the wedge block is movably inserted into the wedge-shaped groove.

[0010] Preferably, a sleeve seat is fixed on the cover, a sleeve is installed on the sleeve seat through threaded connection, the sleeve is a cylindrical structure, a pull rod is movably inserted into an end of the sleeve away from the cover, and an end of the pull rod extending into the sleeve is fixed on a surface of the end of the push rod extending out of the push rod groove.

[0011] Preferably, the top of the cover is fixed with a handle, the handle has a locking groove, the push rod has a locking groove, a locking rod is movably inserted into the locking groove, the locking rod has an "n" shaped plate structure, and the bottom end of the vertical rod is movably inserted into the locking groove.

[0012] Preferably, the top of the cover has a spring replacement port, which is a rectangular groove structure. The spring replacement port is connected to the limit rod mounting groove, and a sealing plate is movably inserted into the spring replacement port. The sealing plate is a rectangular plate structure.

[0013] Preferably, a screw is rotatably connected to the sealing plate, and a screw hole is provided on the cover. The screw is rotatably connected in the screw hole, and the screw shank has an external thread. The screw hole has an internal thread, and the external thread of the screw mates with the internal thread of the screw hole.

[0014] Preferably, a spring rod is fixed on the inner wall of the sleeve. The spring rod has a "C"-shaped rod structure, and the other end of the spring rod is fixed to the push rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are: The portable gas detection device proposed in this utility model has a convenient disassembly and assembly mechanism. When disassembling the base and cover, hold the handle and lift the locking rod upwards to disengage the limiting rod from the limiting hole. Then, pull the handle upwards to separate the base and cover. When installing the base and cover, insert the positioning pin into the positioning hole and press the pull rod to re-insert one end of the limiting rod into the limiting hole to install the base and cover. The entire disassembly and assembly process does not rely on third-party tools, making the disassembly and assembly of the base and cover more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the lid structure; Figure 3 Schematic diagram of the substrate structure; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure at point AA; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure at the CC section; Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point D; Figure 8 This is a schematic diagram of the limit rod and push rod structure; Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point E in the middle.

[0017] In the diagram: 1. Base; 2. Cover; 3. Positioning hole; 4. Positioning pin; 5. Limiting hole; 6. Limiting rod mounting groove; 7. Limiting rod; 8. Wedge groove; 9. Wedge block; 10. Push rod; 11. First spring plate; 12. Second spring plate; 13. Spring; 14. Groove; 15. Slider; 16. Spring replacement port; 17. Sealing plate; 18. Screw hole; 19. Slot; 20. Handle; 21. Locking rod groove; 22. Locking rod; 23. Sleeve seat; 24. Sleeve; 25. Pull rod; 26. Elastic rod; 27. Push rod groove; 28. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1: Please refer to Figures 1 to 9 This utility model provides a technical solution: a convenient disassembly and assembly mechanism for a portable gas detection device, comprising: a base 1 and a cover 2. The base 1 is provided with a positioning hole 3 and a limiting hole 5. A positioning pin 4 is fixed on the cover 2 and is movably inserted into the positioning hole 3. A limiting rod mounting groove 6 is provided on the cover 2. One end of a limiting rod 7 is movably inserted into the limiting rod mounting groove 6, and the other end of the limiting rod 7 is movably inserted into the limiting hole 5.

[0020] When installing the base 1 and the cover 2, fully retract the limiting rod 7 into the limiting rod mounting groove 6, insert the positioning pin 4 into the positioning hole 3, and then insert one end of the limiting rod 7 into the limiting hole 5, while the other end of the limiting rod 7 remains in the limiting rod mounting groove 6. This completes the installation of the base 1 and the cover 2. When separating the base 1 and the cover 2, remove the limiting rod 7 from the limiting hole 5, and then move the cover 2 upwards to pull the positioning pin 4 out of the positioning hole 3. This completes the separation of the base 1 and the cover 2.

[0021] Example 2: Based on Example 1, in order to operate the limiting rod 7, the limiting rod 7 has a rectangular rod structure. One end of the limiting rod 7 that extends into the limiting rod mounting groove 6 is movably connected to a first spring plate 11. A second spring plate 12 is movably connected to the inner wall of the limiting rod mounting groove 6. A spring 13 is fixed between the first spring plate 11 and the second spring plate 12. A push rod groove 28 is provided on the cover 2, and a push rod 10 is movably inserted into the push rod groove 28. The push rod 10 has a rectangular rod structure. A wedge groove 8 is provided on the limiting rod 7, and a wedge block 9 is fixed to one end of the push rod 10. The wedge block 9 is movably inserted into the wedge groove 8. A sleeve seat 24 is fixed on the cover 2. A sleeve 25 is installed via a threaded connection. The sleeve 25 has a cylindrical structure. A pull rod 26 is movably inserted into the end of the sleeve 25 away from the cover 2. One end of the pull rod 26, which extends into the sleeve 25, is fixed to the surface of the end of the push rod 10 that extends out of the push rod groove 28. A handle 21 is fixed to the top of the cover 2. A locking groove 22 is opened on the handle 21. A locking groove 20 is opened on the push rod 10. A locking rod 23 is movably inserted into the locking groove 22. The locking rod 23 has an "n"-shaped plate structure. The bottom end of the vertical rod of the locking rod 23 is movably inserted into the locking groove 20. A spring rod 27 is fixed to the inner wall of the sleeve 25. The spring rod 27 has a "C"-shaped rod structure. The other end of the spring rod 27 is fixed to the push rod 10.

[0022] When the limiting rod 7 needs to be fully retracted into the limiting rod mounting groove 6, pull the locking rod 23 upwards. The locking rod 23 exits from the locking groove 20. Under its own elasticity, the stretched elastic rod 27 pulls one end of the push rod 10 into the inner ring of the sleeve seat 24. This causes the wedge block 9 on the push rod 10 to exit from the wedge groove 8. Under its own elasticity, the stretched spring 13 pulls the first spring plate 11 towards the second spring plate 12. The first spring plate 11 pulls the limiting rod 7 towards the second spring plate 12, thereby realizing the limiting rod 7 from... The limit rod 7 is withdrawn from the limiting hole 5. When one end of the limiting rod 7 needs to be inserted into the limiting hole 5, the pull rod 26 is pushed back into the sleeve 25. The pull rod 26 pushes the push rod 10 so that the push rod 10 is fully pushed into the push rod groove 28 again, so that the wedge block 9 is gradually inserted into the wedge groove 8. During the insertion process, the inclined surface of the wedge block 9 slides over the inclined surface of the wedge groove 8, thereby pushing the limiting rod 7 towards the base 1, so that one end of the limiting rod 7 can be re-inserted into the limiting hole 5. Then, the locking rod 23 is re-inserted into the locking groove 20 under its own weight, limiting the push rod 10 in the push rod groove 28.

[0023] Embodiment 3: On the basis of Embodiment 2, in order to realize replacement of the spring 13 and the elastic rod 27, grooves 14 are formed on both the end of the limit rod 7 and the inner wall of the limit rod installation groove 6, the grooves 14 are of a "convex"-shaped groove structure, sliding blocks 15 are respectively fixed at ends of the first spring plate 11 and the second spring plate 12 that are away from each other, the sliding blocks 15 are of a "convex"-shaped block structure, and two groups of the sliding blocks 15 are respectively movably inserted into two groups of the grooves 14; a spring replacement opening 16 is formed at the top end of the cover 2, the spring replacement opening 16 is of a rectangular groove structure, the spring replacement opening 16 communicates with the limit rod installation groove 6, a sealing plate 17 is movably inserted into the spring replacement opening 16, and the sealing plate 17 is of a rectangular plate structure; a screw 19 is rotatably connected to the sealing plate 17, a screw hole 18 is formed in the cover 2, the screw 19 is rotatably connected in the screw hole 18, an external thread is formed on a rod body of the screw 19, an internal thread is formed in the screw hole 18, and the external thread of the screw 19 matches the internal thread of the screw hole 18.

[0024] When replacing the spring 13, screw and unscrew the screw 19, remove the screw 19 from the screw hole 18, then remove the sealing plate 17 from the spring replacement opening 16, then make the sliding blocks 15 withdraw from the grooves 14, so that the old first spring plate 11, old second spring plate 12 and old spring 13 can be removed from the limit rod installation groove 6, then insert the new sliding blocks 15 into the grooves 14, so that the new first spring plate 11, new second spring plate 12 and new spring 13 can be installed back into the limit rod installation groove 6; screw and unscrew the sleeve 25, unscrew the sleeve 25 from the sleeve seat 24, then pull the sleeve 25 in a direction away from the sleeve seat 24, the sleeve 25 pushes the pull rod 26, the pull rod 26 pulls the push rod 10 out of the push rod groove 28, then replace the sleeve 25, the pull rod 26 and the push rod 10 as a whole, so that replacement of the elastic rod 27 can be realized synchronously.

[0025] In actual use, when installing the base 1 and the cover 2, the limiting rod 7 is fully retracted into the limiting rod mounting groove 6, and the positioning pin 4 is inserted into the positioning hole 3. Then, one end of the limiting rod 7 is inserted into the limiting hole 5, and the other end of the limiting rod 7 remains in the limiting rod mounting groove 6, thus achieving the installation between the base 1 and the cover 2. When disassembling the base 1 and the cover 2, the limiting rod 7 is withdrawn from the limiting hole 5, and then the cover 2 is moved upward, causing the positioning pin 4 to be pulled out from the positioning hole 3, thus achieving the disassembly of the base 1 and the cover 2. When the limiting rod 7 needs to be fully retracted into the limiting rod mounting groove 6, pull the locking rod 23 upwards. The locking rod 23 disengages from the locking groove 20. Under its own elasticity, the stretched elastic rod 27 pulls one end of the push rod 10 into the inner ring of the sleeve seat 24. This causes the wedge block 9 on the push rod 10 to disengage from the wedge groove 8. Under its own elasticity, the stretched spring 13 pulls the first spring plate 11 towards the second spring plate 12. The first spring plate 11 then pulls the limiting rod 7 towards the second spring plate 12. This allows the limiting rod 7 to retract from the limiting hole 5. When one end of the limiting rod 7 needs to be inserted into the limiting hole 5, the pull rod 26 is pushed back into the sleeve 25. The pull rod 26 pushes the push rod 10 so that the push rod 10 is fully pushed into the push rod groove 28 again, causing the wedge block 9 to gradually insert into the wedge groove 8. During the insertion process, the inclined surface of the wedge block 9 slides over the inclined surface of the wedge groove 8, thereby pushing the limiting rod 7 towards the base 1, so that one end of the limiting rod 7 can be reinserted into the limiting hole 5. This portable gas detection device has a convenient disassembly and assembly mechanism. When disassembling the base 1 and the cover 2, hold the handle 21 and lift the locking rod 23 upwards to disengage the limiting rod 7 from the limiting hole 5. Then, pull the handle 21 upwards to disassemble the base 1 and the cover 2. When installing the base 1 and the cover 2, insert the positioning pin 4 into the positioning hole 3 and then press the pull rod 26 to re-insert one end of the limiting rod 7 into the limiting hole 5, thus installing the base 1 and the cover 2. The entire disassembly and assembly process does not rely on third-party tools, making the disassembly and assembly of the base 1 and the cover 2 more convenient.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient assembly and disassembly mechanism for a portable gas detection device, including: A base body (1) and a cover (2), characterized in that: the base body (1) is provided with a positioning hole (3) and a limiting hole (5), a positioning pin (4) is fixed on the cover (2), the positioning pin (4) is actively inserted into the positioning hole (3), a limiting rod installation groove (6) is formed on the cover (2), one end of a limiting rod (7) is actively inserted into the limiting rod installation groove (6), and the other end of the limiting rod (7) is actively inserted into the limiting hole (5).

2. The portable gas detection device easy-to-assemble and disassemble mechanism according to claim 1, characterized in that: The limiting rod (7) is of a rectangular rod structure, one end of the limiting rod (7) extending into the limiting rod installation groove (6) is movably connected with a first spring plate (11), a second spring plate (12) is movably connected on the inner wall of the limiting rod installation groove (6), and a spring (13) is fixed between the first spring plate (11) and the second spring plate (12).

3. The portable gas detection device easy-to-assemble and disassemble mechanism according to claim 2, characterized in that: Grooves (14) are formed on both the end of the limiting rod (7) and the inner wall of the limiting rod installation groove (6), the grooves (14) are of a "convex"-shaped groove structure, sliding blocks (15) are fixed at the ends of the first spring plate (11) and the second spring plate (12) away from each other, the sliding blocks (15) are of a "convex"-shaped block structure, and two groups of sliding blocks (15) are movably inserted into two groups of grooves (14) respectively.

4. The convenient assembly and disassembly mechanism for the portable gas detection device according to claim 3, characterized in that: A push rod groove (28) is formed on the cover (2), a push rod (10) is movably inserted into the push rod groove (28), the push rod (10) is of a rectangular rod structure, a wedge-shaped groove (8) is formed on the limiting rod (7), a wedge-shaped block (9) is fixed at one end of the push rod (10), and the wedge-shaped block (9) is movably inserted into the wedge-shaped groove (8).

5. The portable gas detection device easy-to-assemble and disassemble mechanism according to claim 4, characterized in that: A sleeve seat (24) is fixed on the cover (2), a sleeve (25) is installed on the sleeve seat (24) through threaded connection, the sleeve (25) is of a cylindrical structure, a pull rod (26) is movably inserted into the end of the sleeve (25) away from the cover (2), and one end of the pull rod (26) extending into the sleeve (25) is fixed on the surface of the end of the push rod (10) extending out of the push rod groove (28).

6. The portable gas detection device easy-to-assemble and disassemble mechanism according to claim 5, characterized in that: A handle (21) is fixed at the top end of the cover (2), a clamping rod groove (22) is formed on the handle (21), a clamping groove (20) is formed on the push rod (10), a clamping rod (23) is movably inserted into the clamping rod groove (22), the clamping rod (23) is of an "n"-shaped plate structure, and the bottom end of the vertical rod of the clamping rod (23) is movably inserted into the clamping groove (20).

7. The portable gas detection device easy-to-assemble and disassemble mechanism according to claim 6, characterized in that: A spring replacement opening (16) is formed at the top end of the cover (2), the spring replacement opening (16) is of a rectangular groove structure, the spring replacement opening (16) communicates with the limiting rod installation groove (6), a sealing plate (17) is movably inserted into the spring replacement opening (16), and the sealing plate (17) is of a rectangular plate structure.

8. The convenient assembly and disassembly mechanism for the portable gas detection device according to claim 7, characterized in that: A screw (19) is rotatably connected to the sealing plate (17), a screw hole (18) is formed on the cover (2), the screw (19) is rotatably connected in the screw hole (18), an external thread is formed on the rod body of the screw (19), an internal thread is formed in the screw hole (18), and the external thread of the screw (19) matches with the internal thread of the screw hole (18).

9. The portable gas detection device easy-to-assemble and disassemble mechanism according to claim 5, characterized in that: A spring rod (27) is fixed on the inner wall of the sleeve (25). The spring rod (27) has a "C" shaped rod structure, and the other end of the spring rod (27) is fixed on the push rod (10).

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