Gas concentration detection device with alarm function

Abstract

The utility model belongs to the technical field of gas detection equipment, and particularly relates to a gas concentration detection device with an alarm function, which comprises a detection device main body, a controller, a breather pipe, a connecting end arranged on the detection device main body, a display screen arranged on the detection device main body, an alarm device and a connecting wire arranged on the detection device main body, a power supply connecting end, an external equipment connecting end, a function connecting end and a detection connecting end are arranged at the bottom of the controller, a locking piece is arranged on the connecting end, a control ring is arranged on the locking piece, a connecting pipe end is arranged on the breather pipe, and a control rod is arranged on the locking piece. Through the locking piece, the control ring, the control rod, the threaded hole, the bearing, the rotating groove and the limiting ring, the sealing performance between the detection device main body and the connecting pipe end in the breather pipe is guaranteed, the sealing performance is prevented from being reduced due to abrasion, the sealing effect between the detection device main body and the connecting pipe end in the breather pipe is improved, and the service life of the sealing effect between the detection device main body and the connecting pipe end in the breather pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection equipment, in particular to a gas concentration detection device with an alarm function. Background Art

[0002] Gas detector is an instrument tool for detecting gas leakage concentration, including: portable gas detector, handheld gas detector, fixed gas detector, online gas detector, etc. Gas sensors are mainly used to detect the types of gases in the environment. Gas sensors are sensors used to detect the composition and content of gases. The concentration of the measured gas can also be obtained during the detection process.

[0003] The prior art has the following problems:

[0004] The gas concentration detection device with alarm function in the prior art needs to be installed in the corresponding ventilation pipeline during use. During the installation process, the pipeline connection is generally carried out in the form of threads, and its sealing effect mainly comes from the threaded connection structure and the sealing ring. After the equipment has been used for a long time, as the thread structure wears, the connection sealing between the detection device and the corresponding gas pipeline during installation is reduced, and the service life of the sealing structure of the detection device can be further improved. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a gas concentration detection device with an alarm function, which solves the problem that during the installation of the existing detection device, the connection of the pipeline is generally carried out in the form of threads, and the sealing effect mainly comes from the threaded connection structure and the sealing ring. After the equipment has been used for a long time, as the thread structure wears, the connection sealing between the detection device and the corresponding gas pipeline during installation is reduced, and the service life of the sealing structure of the detection device can be further improved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas concentration detection device with an alarm function, comprising a detection device body, a controller, and a ventilation pipe, the detection device body is provided with a connection end, the detection device body is provided with a display screen, the detection device body is provided with an alarm device and a connecting line, the bottom of the controller is provided with a power connection end, an external device connection end, a function connection end, and a detection connection end, a locking piece is provided on the connection end, a control ring is provided on the locking piece, a connecting pipe end is provided on the ventilation pipe, a control rod is provided on the locking piece, a threaded hole is provided at the bottom of the connection end, a bearing is provided between the locking piece and the control rod, a rotating groove is provided on the outer side of the locking piece, a limiting ring is provided on the inner side of the control ring, and the control rod includes tooth patterns, spiral patterns, and a mounting end.

[0007] As a preferred technical solution of the utility model: one end of the connecting line is electrically connected to the controller through the connection detection connecting end, and the other end of the connecting line is electrically connected to the detection device body.

[0008] As a preferred technical solution of the utility model: there is an electrical connection between the alarm device and the detection device body, and there is an electrical connection between the power connection terminal, the external device connection terminal, the function connection terminal, and the detection connection terminal and the controller.

[0009] As a preferred technical solution of the utility model: the locking piece is inserted in the connecting end, the bearings and control rods have several groups, the outer ring of the bearing is fixedly embedded in the outer corner of the locking piece, and the mounting end of the control rod is sleeved and fixed in the inner ring on the bearing.

[0010] As a preferred technical solution of the utility model: the number of the threaded holes is consistent with the number of control rods and bearings, the position of the threaded hole corresponds to the position of the control rod, and the control rod is inserted into the threaded hole and threadedly connected to the threaded hole through the spiral pattern.

[0011] As a preferred technical solution of the utility model: the restriction ring is connected with the control ring to form a whole, the outer side of the restriction ring is coated with a silicone layer, and the restriction ring is sunk into the rotating groove and adapted to the rotating groove.

[0012] As a preferred technical solution of the utility model: the corresponding contact position between the control ring and the control rod is provided with a tooth groove adapted to the tooth pattern, the control ring and the control rod are meshed through the tooth pattern, and the end of the connecting pipe end is made of rubber and is in a sheet shape slightly larger than the specification of the connecting pipe end.

[0013] Compared with the prior art, the utility model provides a gas concentration detection device with an alarm function, which has the following beneficial effects:

[0014] The gas concentration detection device with an alarm function is provided with a locking piece, a control ring, a control rod, a threaded hole, a bearing, a rotation groove, and a limiting ring. The control ring rotates to drive the control rod to rotate together. During the rotation of the control rod, the control rod gradually enters the threaded hole through the effect of the thread. During the process, the locking piece will move upward toward the connection end and squeeze the rubber section on the top of the connecting pipe end to form a seal, thereby achieving a sealing effect. There are several groups of control rods. After the spiral pattern of one group of control rods decreases due to wear, the remaining control rods can be used normally in the same way, thereby ensuring the sealing effect and the sealing between the detection device body and the connecting pipe end in the ventilation pipe, avoiding the reduction of the sealing due to wear, and prolonging the service life of the sealing effect between the detection device body and the connecting pipe end in the ventilation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 For this utility model Figure 1 A magnified schematic diagram;

[0017] Figure 3 This is a schematic diagram of the installation structure of the control rod and control ring of the utility model;

[0018] Figure 4 For this utility model Figure 3 Enlarged schematic diagram at B;

[0019] Figure 5 This is a schematic diagram of the control rod structure of the utility model.

[0020] In the figure: 1. detection device body; 2. controller; 3. connection end; 4. display screen; 5. alarm device; 6. connecting line; 7. power connection end; 8. external device connection end; 9. function connection end; 10. detection connection end; 11. locking piece; 12. control ring; 13. connecting pipe end; 14. ventilation pipe; 15. control rod; 16. threaded hole; 17. bearing; 18. rotating groove; 19. limiting ring; 20. tooth pattern; 21. spiral pattern; 22. installation end. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 In this embodiment: a gas concentration detection device with an alarm function comprises a detection device body 1, a controller 2, and a ventilation pipe 14. A connection terminal 3 is arranged on the detection device body 1, a display screen 4 is arranged on the detection device body 1, an alarm device 5 and a connecting line 6 are arranged on the detection device body 1, a power connection terminal 7, an external device connection terminal 8, a function connection terminal 9, and a detection connection terminal 10 are arranged at the bottom of the controller 2, a locking piece 11 is arranged on the connection terminal 3, a control ring 12 is arranged on the locking piece 11, a connecting pipe end 13 is arranged on the ventilation pipe 14, a control rod 15 is arranged on the locking piece 11, a threaded hole 16 is opened at the bottom of the connection terminal 3, a bearing 17 is arranged between the locking piece 11 and the control rod 15, a rotation groove 18 is opened on the outer side of the locking piece 11, a limiting ring 19 is arranged on the inner side of the control ring 12, and the control rod 15 comprises a tooth pattern 20, a spiral pattern 21, and a mounting end 22.

[0023] In this embodiment, one end of the connecting wire 6 is electrically connected to the controller 2 through the connecting detection connecting terminal 10, and the other end of the connecting wire 6 is electrically connected to the detection device body 1, so that the detection device body 1 is conveniently connected to the controller 2 through the connecting wire 6; there is an electrical connection between the alarm device 5 and the detection device body 1, and the power connection terminal 7, the external device connection terminal 8, the function connection terminal 9, and the detection connection terminal 10 are all electrically connected to the controller 2. The controller 2 can be connected to an external power supply through the power connection terminal 7, and the controller 2 can be connected to an external host through the external device connection terminal 8. The controller 2 can be connected to an externally adapted exhaust fan, electromagnetic valve, sprinkler system and sound and light alarm mechanism through the function connection terminal 9, and the detection device body 1 can be conveniently connected through the detection connection terminal 10; the locking member 11 is inserted in the connection terminal 3, and the bearing 17 and the control rod 15 have a total of several groups. The outer ring of the bearing 17 is fixedly embedded in the outer corner of the locking member 11, and the mounting end 22 of the control rod 15 is sleeved and fixed in the inner ring on the bearing 17, through the shaft The bearing 17 can limit the position of the control rod 15 and ensure the rotation effect of the control rod 15; the number of the threaded holes 16 is consistent with the number of the control rod 15 and the bearing 17, the position of the threaded hole 16 corresponds to the position of the control rod 15, the control rod 15 is inserted into the threaded hole 16 and is threadedly connected with the threaded hole 16 through the spiral pattern 21, and the threaded connection can be formed between the threaded hole 16 and the spiral pattern 21 on the control rod 15; the limiting ring 19 is connected to the control ring 12 to form a whole, and the outer side of the limiting ring 19 is coated with a silicone layer. The limiting ring 19 is sunk into the rotating groove 18 and matched with the rotating groove 18. The limiting ring 19 can limit the position of the control ring 12 and ensure the rotation effect of the control ring 12. The corresponding contact position between the control ring 12 and the control rod 15 is provided with a tooth groove matched with the tooth pattern 20. The control ring 12 and the control rod 15 are meshed through the tooth pattern 20. The end of the connecting pipe end 13 is made of rubber and is in a sheet shape slightly larger than the specification of the connecting pipe end 13. The tooth pattern 20 can form a meshing structure with the control ring 12 to ensure the transmission effect of the control ring 12.

[0024] The working principle and use process of the utility model: in actual use, the controller 2 is fixedly installed in a suitable position, and the power connection terminal 7 is connected to an external power supply, the external device connection terminal 8 is connected to an external host, and the function connection terminal 9 is connected to an externally adapted exhaust fan, electromagnetic valve, sprinkler system and sound and light alarm mechanism, and the connecting line 6 on the detection device body 1 is connected to the detection connection terminal 10, and then the connecting pipe end 13 on the corresponding ventilation pipe 14 of the gas to be detected needs to be connected to the connecting end 3 on the detection device body 1. During the connection process, the rubber section on the top of the connecting pipe end 13 is squeezed and deformed to pass through the locking piece 11 and then stretched between the locking piece 11 and the connecting end 3, and then the control ring 12 is rotated, and the control ring 12 rotates in the rotating groove 18 through the limiting ring 19. At the same time, due to the meshing between the control ring 12 and the tooth pattern 20 on the control rod 15, the control When the ring 12 rotates, it will drive the control rod 15 to rotate together. The bearing 17 can limit the position of the control rod 15 and ensure the rotation effect of the control rod 15. During the rotation of the control rod 15, since the spiral pattern 21 on the upper part of the control rod 15 is threadedly connected with the threaded hole 16, the control rod 15 will gradually enter the threaded hole 16 through the effect of the thread. During the process, the locking piece 11 will move upward close to the connecting end 3 and squeeze the rubber section on the top of the connecting pipe end 13 to form a seal to achieve a sealing effect. There are several groups of control rods 15. After the spiral pattern 21 of one group of control rods 15 is worn down, the remaining control rods 15 can be used normally to ensure the sealing effect, ensure the sealing between the detection device body 1 and the connecting pipe end 13 in the ventilation pipe 14, avoid reducing the sealing due to wear, and improve the service life of the sealing effect between the detection device body 1 and the connecting pipe end 13 in the ventilation pipe 14.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gas concentration detection device with an alarm function, characterized in that: The invention comprises a detection device body (1), a controller (2), and a ventilation pipe (14); the detection device body (1) is provided with a connection terminal (3); the detection device body (1) is provided with a display screen (4); the detection device body (1) is provided with an alarm device (5) and a connection line (6); the controller (2) is provided with a power connection terminal (7), an external device connection terminal (8), a function connection terminal (9), and a detection connection terminal (10) at the bottom; the connection terminal (3) is provided with a locking piece (11); the locking piece (11) is provided with a A control ring (12) is provided, a connecting pipe end (13) is provided on the ventilation pipe (14), a control rod (15) is provided on the locking member (11), a threaded hole (16) is provided at the bottom of the connecting end (3), a bearing (17) is provided between the locking member (11) and the control rod (15), a rotation groove (18) is provided on the outer side of the locking member (11), a limiting ring (19) is provided on the inner side of the control ring (12), and the control rod (15) comprises a tooth pattern (20), a spiral pattern (21), and a mounting end (22).

2. A gas concentration detection device with alarm function according to claim 1, characterized in that: One end of the connection line (6) is electrically connected to the controller (2) via the connection detection connection end (10), and the other end of the connection line (6) is electrically connected to the detection device body (1).

3. A gas concentration detection device with alarm function according to claim 1, characterized in that: There is an electrical connection between the alarm device (5) and the detection device body (1), and there is an electrical connection between the power connection terminal (7), the external device connection terminal (8), the function connection terminal (9), and the detection connection terminal (10) and the controller (2).

4. A gas concentration detection device with alarm function according to claim 1, characterized in that: The locking member (11) is inserted into the connecting end (3), and the bearing (17) and the control rod (15) are provided in a plurality of groups. The outer ring of the bearing (17) is fixedly embedded in the outer corner of the locking member (11), and the mounting end (22) of the control rod (15) is sleeved and fixed in the inner ring of the bearing (17).

5. A gas concentration detection device with alarm function according to claim 1, characterized in that: The number of the threaded holes (16) is consistent with the number of the control rods (15) and the bearings (17); the position of the threaded hole (16) corresponds to the position of the control rod (15); the control rod (15) is inserted into the threaded hole (16) and is threadedly connected to the threaded hole (16) via the spiral pattern (21).

6. A gas concentration detection device with alarm function according to claim 1, characterized in that: The limiting ring (19) is connected to the control ring (12) to form a whole, the outer side of the limiting ring (19) is covered with a silica gel layer, and the limiting ring (19) is sunk into the rotating groove (18) and is adapted to the rotating groove (18).

7. A gas concentration detection device with alarm function according to claim 1, characterized in that: A tooth groove matching the tooth pattern (20) is provided at a position where the control ring (12) and the control rod (15) contact each other. The control ring (12) and the control rod (15) are meshed with each other via the tooth pattern (20). The end of the connecting pipe end (13) is made of rubber and is in the shape of a sheet slightly larger than the specification of the connecting pipe end (13).

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