Gas detector with built-in pumping function

Abstract

The utility model relates to the technical field of gas detection, in particular to a gas detector with a built-in pumping function, which comprises a detection body, a gas inlet pipe and a protective shell, a lower cylinder is arranged at the top of the detection body, an upper cylinder is arranged at the bottom of the gas inlet pipe, the upper cylinder and the lower cylinder are detachably connected, and a dustproof net is arranged at the connecting part; a containing groove is formed in the detection body and is divided into an air suction cavity located on the upper left portion, a detection cavity located on the lower left portion and a power supply cavity located on the right side through partition pieces, and an air suction pump, a detection unit and a power source are arranged in the air suction cavity, the detection cavity and the power supply cavity respectively; the front side surface of the detection body is provided with an external display plate, the upper part of the external display plate is provided with a display screen, the bottom is provided with a button unit, the periphery of the external display plate is provided with a connecting groove, and the protective shell is detachably connected in the connecting groove. According to the utility model, dustproof treatment can be carried out on the detector while air suction detection is realized, dustproof parts are convenient to replace and maintain, and the air inlet pipe can be detached when not needed, so that space occupation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, specifically to a gas detector with a built-in pump suction function. Background Technology

[0002] A gas detector is an instrument used to detect the concentration of leaked gases. It draws gas into its body for detection and then expels the gas after the detection is complete. Due to the nature of detection, gas detectors involve electronic components. Furthermore, because gas detectors are used frequently and in complex environments, dust protection measures are necessary, and the dustproof structure needs to be easily replaceable or maintained.

[0003] Therefore, this utility model provides a novel gas detector with a built-in pump suction function, which can perform gas suction detection while providing dust protection for the detector and facilitating the replacement and maintenance of dust-proof components. Utility Model Content

[0004] This utility model provides a gas detector with a built-in pump function to achieve gas intake detection while providing dust protection for the detector and facilitating the replacement and maintenance of dustproof components.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A gas detector with a built-in pump suction function is provided. Its innovation lies in that it includes a detection body, an air inlet pipe, and a protective shell. The top of the detection body is provided with a lower cylinder, and the bottom of the air inlet pipe is provided with an upper cylinder. The upper and lower cylinders are detachably connected, and a dustproof net is detachably provided at the connection point. The detection body has a receiving groove, which is divided by a T-shaped partition into an air intake chamber located at the upper left, a detection chamber at the lower left, and a power supply chamber on the right. An air intake pump, a detection unit, and a power supply are respectively provided in the air intake chamber, the detection chamber, and the power supply chamber. The unit is connected by a vent pipe through a partition. The detection body has an air outlet, and the air outlet of the detection unit is connected to the outside through the air outlet. The partition has two through holes that connect the power supply chamber to the air intake chamber and the detection chamber respectively. The power supply is electrically connected to the air intake pump and the detection unit through the through holes respectively. The lower cylinder is connected to the air intake end of the air intake pump through a duct pipe built into the detection body. The front side of the detection body is set as an external display plate. The upper part of the external display plate is equipped with a display screen and the bottom is equipped with a button unit. The outer periphery of the external display plate is equipped with a connecting groove that adapts to the external display plate. The protective shell is outside the external display plate and is detachably connected to the connecting groove.

[0006] Furthermore, the structure in which the upper and lower cylinders are detachably connected is as follows: the lower and upper cylinders have the same outer diameter, the lower inner side of the lower cylinder is provided with a ring of bosses facing inward, the upper inner side of the connecting part is provided with a ring of pressure plates facing downward corresponding to the bosses, the outer surface of the pressure plates is provided with external threads, the upper inner side of the lower cylinder is provided with internal threads, and the pressure plates and the lower cylinder are threadedly connected.

[0007] Furthermore, the dustproof net is placed on the boss, and after the pressure table and the lower cylinder thread move down, the dustproof net is squeezed and set.

[0008] Furthermore, several elastic retaining balls are evenly arranged around the upper edge of the protrusion, and the bottom of the dustproof net is provided with a retaining groove corresponding to several elastic retaining balls, and the elastic retaining balls are engaged in the retaining groove.

[0009] Furthermore, a sealing gasket is provided between the upper cylinder and the lower cylinder.

[0010] Furthermore, a sealing element is provided at the air outlet, the sealing element including two symmetrical spherical elastic clips connected together, and two curved grooves are provided on both sides of the air outlet corresponding to the two elastic clips. The part where the two curved grooves are connected is a curved connecting part. The diameter of the connecting part is smaller than the diameter of the curved groove. The elastic clip can be squeezed by the connecting part to move from one curved groove into the other curved groove. A hand-held ring is provided on the side end of one elastic clip away from the other elastic clip.

[0011] Furthermore, a fixed ball groove is evenly provided along the connecting groove on any one of the inner sides of the connecting groove, and a spherical fixing clip is provided on the end side of the protective shell connected to the connecting groove corresponding to several fixed ball grooves, and the fixing clip is inserted into the corresponding fixed ball groove.

[0012] Furthermore, the connecting groove is also provided with a spring and a sealing ring gasket. The sealing ring gasket is adapted to be placed in the connecting groove. One end of the spring is connected to the sealing ring gasket, and the other end is connected to the bottom end of the connecting groove. After the protective shell is connected in the connecting groove, it compresses the sealing ring gasket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model discloses a gas detector with a built-in pump suction function, which is provided with a detachable lower cylinder and an upper cylinder. A dustproof net is detachably provided at the connection between the lower cylinder and the upper cylinder, which allows the air inlet pipe to be detachably connected to the detection body. This enables the detector to be dustproofed while performing air suction detection, and facilitates the replacement and maintenance of dustproof components. The air inlet pipe can also be removed when not needed to avoid occupying space.

[0015] This utility model provides a gas detector with a built-in pump suction function, which also features a protective shell that is detachably connected to the outside of the display panel. This protective shell protects the display panel from dust and water, thus improving the device's service life and performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a gas detector with a built-in pump suction function according to the present invention.

[0018] Figure 2 For the present utility model Figure 1 A schematic diagram of the structure after removing the protective shell.

[0019] Figure 3 This is a three-dimensional structural view of the upper and lower cylinders of this utility model (without dustproof netting).

[0020] Figure 4 This is a three-dimensional structural view of the upper and lower cylinders of this utility model (with dustproof netting).

[0021] Figure 5 This is a cross-sectional view showing the connection between the upper and lower cylinders of this utility model.

[0022] Figure 6 For the present utility model Figure 5 Enlarged view of point A in the image.

[0023] Figure 7 This is a frontal cross-sectional view of the detection body of this utility model.

[0024] Figure 8 This is a cross-sectional view of the left side of the detection body of this utility model (without a protective shell).

[0025] Figure 9 For the present utility model Figure 8 Enlarged view of point B in the image.

[0026] Figure 10 This is a cross-sectional view of the left side of the detection body of this utility model (with a protective shell).

[0027] Figure 11 For the present utility model Figure 10 Enlarged view of point C in the image.

[0028] The components include: 1. Detector body; 2. Air inlet pipe; 3. Protective shell; 4. Lower cylinder; 5. Upper cylinder; 6. Dustproof net; 7. Receptacle; 8. Spacer; 9. Suction chamber; 10. Detection chamber; 11. Power supply chamber; 12. Suction pump; 13. Detection unit; 14. Power supply; 15. Vent pipe; 16. Air outlet; 161. Curved groove; 162. Connecting part; 17. Through hole; 18. Air guide pipe; 19. External display panel; 20. Display screen; 21. Button unit; 22. Connecting groove; 23. Boss; 25. Pressing platform; 26. Elastic ball retainer; 27. Card slot; 28. Sealing gasket; 29. ​​Seal; 291. Elastic retainer; 292. Handheld ring; 30. Fixed ball groove; 31. Fixed retainer; 32. Sealing ring gasket; 33. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] The directional terms "front", "back", "left and right", "up", and "down" used in this utility model are only used to describe the accompanying drawings and are not intended to limit the actual use of the device. In actual use, the orientation of the device shall be determined by the actual usage.

[0031] Example 1

[0032] This embodiment provides a gas detector with a built-in pump suction function, including a detection body 1, an air inlet pipe 2, and a protective shell 3, such as... Figure 1 and 2 As shown, the top of the detection body 1 is provided with a lower cylinder 4, and the bottom of the air inlet pipe 2 is provided with an upper cylinder 5. The upper cylinder 5 and the lower cylinder 4 are detachably connected, and a dustproof net 6 is detachably provided at the connection part 162. The detection body 1 is provided with a receiving groove 7, which is divided by a T-shaped partition 8 into an air intake chamber 9 located on the upper left, a detection chamber 10 located on the lower left, and a power supply chamber 11 located on the right. Figure 7As shown, an air intake pump 12, a detection unit 13, and a power supply 14 are respectively installed in the air intake chamber 9, the detection chamber 10, and the power supply chamber 11. The air intake pump 12 and the detection unit 13 are connected by a vent pipe 15 passing through the partition 8. The detection body 1 is provided with an air outlet 16, and the air outlet of the detection unit 13 is connected to the outside through the air outlet 16. The partition 8 is provided with two through holes 17, which connect the power supply chamber 11 to the air intake chamber 9 and the detection chamber 10 respectively. The power supply 14 is electrically connected to the air intake pump 12 and the detection unit 13 through the through holes 17. Specifically, the electrical connection is made by connecting a power wire, and the power supply 14 is connected to the power supply through the through holes 17. The lower cylinder 4 is connected to the air intake end of the air intake pump 12 and the detection unit 13 through an air guide pipe 18 built into the detection body 1; the front side of the detection body 1 is provided as an external display plate 19, the upper part of the external display plate 19 is provided with a display screen 20, and the bottom is provided with a button unit 21. The display screen 20 and the button unit 21 on the external display plate 19 are both electrically connected to the power supply 14. Since the connection method is existing technology, it will not be described here. The outer periphery of the external display plate 19 is provided with a connecting groove 22 that is adapted to the external display plate 19. The protective shell 3 covers the external display plate 19 and is detachably connected to the connecting groove 22.

[0033] In this embodiment, the detection unit 13 is a gas sensor. The specific sensor used depends on the component of the gas being detected. For example, an infrared sensor or a catalytic combustion sensor is used to detect combustible gases, and a hazardous gas sensor is used to detect hazardous gases.

[0034] This embodiment features detachably connected lower cylinder 4 and upper cylinder 5 components. A dustproof net 6 is detachably installed at the connection point 162 between the lower cylinder 4 and upper cylinder 5, allowing the air inlet pipe 2 to be detachably connected to the detection body 1. This enables air intake detection while simultaneously providing dust protection for the detector and facilitating the replacement and maintenance of dustproof components. Furthermore, the air inlet pipe 2 can be removed when not needed, saving space. This embodiment also includes a protective shell 3, detachably connected to the outer display panel 19, providing protection against dust and water, thus improving the device's lifespan and performance.

[0035] Example 2

[0036] Based on the above embodiments, the detachable connection structure of the upper cylinder 5 and the lower cylinder 4 in this embodiment is as follows: Figure 3 As shown, the lower cylinder 4 and the upper cylinder 5 have the same outer diameter. The lower inner side of the lower cylinder 4 is provided with a boss 23. The upper inner side is provided with a pressure plate 25 corresponding to the boss 23. The outer surface of the pressure plate 25 is provided with external thread. The upper inner side of the lower cylinder 4 is provided with internal thread. The pressure plate 25 and the lower cylinder 4 are threaded together.

[0037] In this embodiment, the pressure table 25 is threaded downwards and connected to the lower cylinder 4. During the downward screwing process, the upper cylinder 5 and the lower cylinder 4 are connected to form a gas channel, that is, the air inlet pipe 2 and the air guide pipe 18 are indirectly connected. The gas is drawn in by the air pump 12, enters the air inlet pipe 2, and then passes through the channel connecting the upper cylinder 5 and the lower cylinder 4 and the air guide pipe 18 in sequence to enter the air pump 12. Then it enters the detection unit 13 through the air pipe 15 for detection. After the detection is completed, it is discharged through the air outlet 16.

[0038] Example 3

[0039] Based on the above embodiments, in order to facilitate the replacement and maintenance of the dustproof net 6, as shown... Figure 3-6 As shown, in this embodiment, the dustproof net 6 is placed on the boss 23. After the pressure table 25 and the lower cylinder 4 are screwed down, the dustproof net 6 is squeezed and set.

[0040] When in use, the dustproof net 6 is pressed and fixed by the pressure table 25 and the boss 23. When replacing or maintaining, simply unscrew the upper cylinder 5 and the air inlet pipe 2 upwards. It is convenient and efficient to use.

[0041] Example 4

[0042] Based on the above embodiments, in order to further ensure the stability of the dustproof net 6, several elastic locking balls 26 are evenly provided along the circumference of the boss 23 in this embodiment, and the bottom of the dustproof net 6 is provided with a locking groove 27 corresponding to several elastic locking balls 26, and the elastic locking balls 26 are locked in the locking groove 27.

[0043] By inserting the elastic ball 26 into the slot 27, the dustproof net 6 can be positioned and initially fixed. Then, the pressure table 25 is used to press down for secondary fixation, enhancing the installation stability of the dustproof net 6. When removing the dustproof net 6, apply force outward to the dustproof net 6, causing the elastic ball 26 to be pressed out of the slot 27.

[0044] Example 5

[0045] Based on the above embodiments, in order to ensure the cleanliness of the components and the stability of the detection, a sealing gasket 28 is provided between the upper cylinder 5 and the lower cylinder 4 in this embodiment.

[0046] Example 6

[0047] Based on the above embodiments, in order to prevent dust and other contaminants from entering the detection unit 13 when the detector is not in use, a sealing element 29 is provided at the air outlet 16 in this embodiment. Figure 8 and 9As shown, the sealing element 29 includes two symmetrical spherical elastic clips 291. The two elastic clips 291 are connected. The two elastic clips 291 on both sides of the air outlet 16 are provided with two curved grooves 161. The part where the two curved grooves 161 are connected is a curved connecting part 162. The inner diameter of the connecting part 162 is smaller than the inner diameter of the curved groove 161. The elastic clip 291 can be squeezed by the connecting part 162 to move from one curved groove 161 into the other curved groove 161. A hand ring 292 is provided on the side end of one of the elastic clips 291 away from the other elastic clip 291.

[0048] When the detector is not in use, to prevent impurities, dust, or moisture from entering the detection unit 13 through the air outlet 16, which could damage the detection unit 13 and affect its performance and lifespan, the air outlet 16 needs to be closed and sealed. In practical use, the elastic clip 291 (without the handgrip 292) can be pressed inward from the outer curved groove 161, passing through the connecting part 162 into the inner curved groove 161. The two elastic clips 291 are correspondingly pressed into the two curved grooves 161, forming a seal between the curved grooves 161 and the connecting part 162, thus creating a seal at the air outlet 16. When the detector needs to be used, force is applied outward through the handgrip 292 to move the seal 29 out of the air outlet 16, allowing the tested gas to exit the detector smoothly.

[0049] Example 7

[0050] Based on the above embodiments, in this embodiment, a fixing ball groove 30 is uniformly provided along the connecting groove 22 on any one of the inner side surfaces of the connecting groove 22, such as... Figure 10 and 11 As shown, the protective shell 3 and the connecting groove 22 are connected by a number of fixed ball grooves 30 with spherical fixing clips 31, which are inserted into the corresponding fixed ball grooves 30.

[0051] In this embodiment, the fixing clip 31 is still an elastic fixing clip 31. When installing the protective shell 3, the end of the protective shell 3 is pressed inward in the connecting groove 22. When the fixing clip 31 moves to the position of the fixing ball groove 30, it is inserted into the fixing ball groove 30, so that the protective shell 3 and the connecting groove 22 are connected. When the detector is to be used, the protective shell 3 is forced outward to disengage the fixing clip 31 from the fixing ball groove 30. In this embodiment, the protective shell 3 can be transparent.

[0052] Example 8

[0053] Based on the above embodiments, in order to prevent more impurities and dust from entering the connecting groove 22 during use, the connecting groove 22 in this embodiment is also provided with a spring 33 and a sealing ring gasket 32. The sealing ring gasket 32 ​​is adapted to be placed in the connecting groove 22. One end of the spring 33 is connected to the sealing ring gasket 32, and the other end is connected to the bottom end of the connecting groove 22. After the protective shell 3 is connected in the connecting groove 22, the sealing ring gasket 32 ​​is squeezed and set.

[0054] The sealing ring gasket 32 ​​and spring 33 in this embodiment can protect the connecting groove 22 by adapting the sealing ring gasket 32 ​​placed in the connecting groove 22 when the detection body 1 is in use (without the protective shell 3 installed), preventing excessive moisture and impurities from entering; when the detection instrument is not in use (with the protective shell 3 installed), the protective shell 3 presses the sealing ring gasket 32 ​​to form a seal in the space inside the protective shell 3, forming a sealed protection for the display screen 20 and the button unit 21, improving the quality and lifespan of the components.

[0055] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully described in the technical requirements.

Claims

1. A gas detector with a built-in pump suction function, characterized in that: The device includes a detection body, an air inlet pipe, and a protective shell. The detection body has a lower cylinder at its top and an upper cylinder at its bottom. The upper and lower cylinders are detachably connected, and a dustproof mesh is detachably installed at the connection point. The detection body has a receiving groove, which is divided by a T-shaped partition into an air intake chamber located at the upper left, a detection chamber at the lower left, and a power supply chamber on the right. An air intake pump, a detection unit, and a power supply are respectively located in the air intake chamber, the detection chamber, and the power supply chamber. The air intake pump and the detection unit are connected by a vent pipe passing through the partition. An air outlet is located on the detection body. The detection unit's air outlet is connected to the outside; the partition has two through holes that connect the power supply chamber to the air intake chamber and the detection chamber respectively, and the power supply is electrically connected to the air intake pump and the detection unit through the through holes respectively; the lower cylinder is connected to the air intake end of the air intake pump through an air guide tube built into the detection body; the front side of the detection body is set as an external display plate, the upper part of the external display plate is equipped with a display screen, the bottom is equipped with a button unit, the outer periphery of the external display plate is equipped with a connecting groove adapted to the external display plate, and the protective shell is outside the external display plate and is detachably connected to the connecting groove.

2. The gas detector with built-in pump suction function according to claim 1, characterized in that: The structure for the detachable connection between the upper and lower cylinders is as follows: the lower and upper cylinders have the same outer diameter; a boss is provided on the lower part of the inner side of the lower cylinder; a pressure plate is provided on the inner side of the upper part of the connection corresponding to the boss; the outer surface of the pressure plate is provided with external threads; the upper part of the inner side of the lower cylinder is provided with internal threads; and the pressure plate and the lower cylinder are threaded together.

3. The gas detector with built-in pump suction function according to claim 2, characterized in that: The dustproof net is placed on the boss, and after the pressure table and the lower cylinder thread move down, the dustproof net is squeezed and set.

4. The gas detector with built-in pump suction function according to claim 3, characterized in that: Several elastic locking balls are evenly arranged around the upper edge of the protrusion, and the bottom of the dustproof net is provided with a locking groove corresponding to several elastic locking balls, and the elastic locking balls are locked in the locking groove.

5. The gas detector with built-in pump suction function according to claim 2, characterized in that: A sealing gasket is provided between the upper and lower cylinders.

6. The gas detector with built-in pump suction function according to claim 1, characterized in that: The air outlet is provided with a sealing element, which includes two symmetrical spherical elastic clips connected together. The two elastic clips on both sides of the air outlet are provided with two curved grooves. The part where the two curved grooves are connected is a curved connecting part. The diameter of the connecting part is smaller than the diameter of the curved groove. The elastic clip can be squeezed by the connecting part and moved from one curved groove into the other curved groove. A hand-held ring is provided on the side end of one of the elastic clips away from the other elastic clip.

7. The gas detector with built-in pump suction function according to claim 1, characterized in that: A fixed ball groove is evenly provided on any one inner side of the connecting groove. A spherical fixing clip is provided on the end side of the protective shell that connects to the connecting groove, corresponding to several fixed ball grooves. The fixing clip is inserted into the corresponding fixed ball groove.

8. The gas detector with built-in pump suction function according to claim 7, characterized in that: The connecting groove is also provided with a spring and a sealing ring gasket. The sealing ring gasket is adapted to be placed in the connecting groove. One end of the spring is connected to the sealing ring gasket, and the other end is connected to the bottom end of the connecting groove. After the protective shell is connected in the connecting groove, it compresses the sealing ring gasket.

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