CN211785260U

CN211785260U - Directly-heated gas sensor

Info

Publication number: CN211785260U
Application number: CN202020213449.7U
Authority: CN
Inventors: 陈立强; 张金鑫
Original assignee: Shenzhen Mixsen Electronics Co ltd
Current assignee: Shenzhen Mixsen Electronics Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-10-27
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses a directly-heated type gas sensor, including the gas-supply pipe, the both ends of gas-supply pipe are provided with flange, the centre of gas-supply pipe is provided with the test tube, be provided with fastening bolt and gauge outfit flange on the test tube, the bottom of test tube is located the gas-supply pipe and is provided with detecting element, the top of test tube is provided with detects the table, it is provided with protective structure to lie in test tube department on the gas-supply pipe, one side that lies in protective structure on the gas-supply pipe is provided with controlling means. A directly-heated type gas sensor, be provided with controlling means, can control gas through controlling means, avoid needing install control switch alone, gas in can direct gas-supply pipe is controlled, it is more convenient, be provided with protective structure, can protect the test tube through protective structure, avoid the test tube to receive the striking and the condition that the test tube damaged appears, guarantee check out test set's normal use, it is more practical.

Description

Directly-heated gas sensor

Technical Field

The utility model relates to a gas sensor field, in particular to directly-heated gas sensor.

Background

The gas sensor is a converter which converts the volume fraction of a certain gas into a corresponding electric signal, the probe conditions a gas sample through the gas sensor, and generally comprises a display part which filters impurities and interfering gases and is used for drying or refrigerating an instrument, the gas sensor is a device which converts the information of the components, concentration and the like of the gas into information which can be utilized by personnel, instruments, computers and the like, and comprises a semiconductor gas sensor, an electrochemical gas sensor, a catalytic combustion type gas sensor, a thermal conductivity type gas sensor, an infrared gas sensor, a solid electrolyte gas sensor and the like, and the direct heating type gas sensor is one of the thermal conductivity type gas sensors. However, the existing thermal conductivity type gas sensor can control the circulation of gas of a gas pipeline only by installing valve bodies at two ends of a connecting flange independently, cannot be controlled directly independently, is relatively troublesome, and is also provided with a detection pipe which is easy to be damaged by impact to influence the use.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a directly-heated gas sensor, which can effectively solve the problems of the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a directly-heated type gas sensor, includes the gas-supply pipe, the both ends of gas-supply pipe are provided with flange, the centre of gas-supply pipe is provided with the test tube, be provided with fastening bolt and gauge outfit flange on the test tube, the bottom of test tube is located the gas-supply pipe and is provided with detecting element, the top of test tube is provided with the detection table, it is provided with protective structure to lie in test tube department on the gas-supply pipe, one side that lies in protective structure on the gas-supply pipe is provided with controlling means.

Preferably, controlling means includes knob, baffle, connecting rod, sealing washer and rotates the seat, the one side that lies in protective structure on the gas-supply pipe is provided with two and rotates the seat, it is provided with the connecting rod to rotate between the seat, the upper end of connecting rod is provided with the knob, the inside of gas-supply pipe is located baffle department and is provided with the sealing washer, and the baffle laminates with the sealing washer mutually, the baffle rotates round the connecting rod, can control gas through controlling means, avoids need install control switch alone, and the gas in the gas-supply pipe that can be direct is controlled, and is more convenient.

Preferably, protective structure includes fixed block, fixing bolt, places hole and holder, the fixed block is two circular-arcs of mutually supporting, the welding has the holder between the fixed block, seted up in the middle of the holder and placed the hole, corresponding screw hole has been seted up on the fixed block respectively, be provided with fixing bolt in the screw hole, the gauge outfit flange is located between two fixing bolt, the test tube runs through and places hole department, can protect the test tube through protective structure, avoids the test tube to receive the striking and the condition that the test tube damaged appears, guarantees test equipment's normal use, and is more practical.

Preferably, the detection meter is provided with a wire outlet hole, and the wire outlet hole is connected with a power supply through a lead.

Preferably, the front end of the detection meter is provided with a display screen and a function key.

Preferably, the connecting flange is connected with a gas pipeline through a fixing hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, be provided with controlling means, can control gas through controlling means, avoid needing install control switch alone, gas in can direct gas-supply pipe is controlled, and is more convenient, is provided with protective structure, can protect the detecting tube through protective structure, avoids the detecting tube to receive the striking and the condition that the detecting tube damaged appears, guarantees the normal use of check out test set, and is more practical.

Drawings

Fig. 1 is a schematic view of the overall structure of a directly-heated gas sensor according to the present invention;

fig. 2 is a front view of a directly-heated gas sensor according to the present invention;

FIG. 3 is an enlarged view at A of FIG. 2;

fig. 4 is a schematic view of a protection structure of a directly-heated gas sensor of the present invention.

In the figure: 1. a gas delivery pipe; 2. a connecting flange; 3. a fixing hole; 4. a control device; 401. a knob; 402. a baffle plate; 403. a connecting rod; 404. a seal ring; 405. a rotating seat; 5. fastening a bolt; 6. a detection tube; 7. detecting a table; 8. a wire outlet hole; 9. a display screen; 10. function keys; 11. a protective structure; 1101. a fixed block; 1102. fixing the bolt; 1103. placing holes; 1104. a holder; 12. a gauge head flange; 13. a detection element.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a directly-heated gas sensor comprises a gas pipe 1, wherein connecting flanges 2 are arranged at two ends of the gas pipe 1, a detection pipe 6 is arranged in the middle of the gas pipe 1, a fastening bolt 5 and a gauge head flange 12 are arranged on the detection pipe 6, a detection element 13 is arranged in the gas pipe 1 at the bottom end of the detection pipe 6, a detection gauge 7 is arranged above the detection pipe 6, a protection structure 11 is arranged on the gas pipe 1 at the detection pipe 6, and a control device 4 is arranged on one side of the gas pipe 1 at the protection structure 11;

the control device 4 comprises a knob 401, a baffle 402, a connecting rod 403, a sealing ring 404 and a rotating seat 405, wherein two rotating seats 405 are arranged on one side of the gas pipe 1, which is positioned on the protective structure 11, the connecting rod 403 is arranged between the rotating seats 405, the knob 401 is arranged at the upper end of the connecting rod 403, the sealing ring 404 is arranged inside the gas pipe 1, which is positioned at the baffle 402, the baffle 402 is attached to the sealing ring 404, the baffle 402 rotates around the connecting rod 403, the gas can be controlled through the control device 4, the need of installing a control switch separately is avoided, and the gas in the gas pipe 1 can be directly controlled, which is more convenient; the protection structure 11 comprises fixing blocks 1101, fixing bolts 1102, placing holes 1103 and a retainer 1104, the fixing blocks 1101 are two circular arcs which are matched with each other, the retainer 1104 is welded between the fixing blocks 1101, the placing holes 1103 are formed in the middle of the retainer 1104, corresponding threaded holes are respectively formed in the fixing blocks 1101, the fixing bolts 1102 are arranged in the threaded holes, the gauge head flange 12 is located between the two fixing bolts 1102, the detection tube 6 penetrates through the placing holes 1103, the detection tube 6 can be protected through the protection structure 11, the situation that the detection tube 6 is damaged due to collision of the detection tube 6 is avoided, normal use of detection equipment is guaranteed, and the detection device is practical; the detection meter 7 is provided with a wire outlet hole 8, and the wire outlet hole 8 is connected with a power supply through a lead; the front end of the detection meter 7 is provided with a display screen 9 and a function key 10; the connecting flange 2 is connected with a gas pipeline through a fixing hole 3.

It should be noted that, the present invention is a directly-heated gas sensor, during installation, the connecting flanges 2 at the two ends of the gas pipe 1 are aligned with the pipe, and then inserted into the fixing holes 3 through bolts, at this time, the pipe is connected, then the detecting element 13 is inserted into the bottom end of the detecting pipe 6, the placing hole 1103 in the middle of the holder 1104 is placed at the fastening bolt 5, the detecting element 13 of the detecting meter 7 is inserted into the gas pipe 1, then the fastening bolt 5 is screwed, then the fixing bolt 1102 on the fixing block 1101 is inserted into the threaded hole, and after the fixing bolt 1102 on the two sides supports the meter head flange 12, the fixing block 1101 is welded on the gas pipe 1, at this time, the detecting pipe 6 is fixed through the protective structure 11, during use, the wire in the outlet hole 8 is connected with the power supply, and the function key 10 of the detecting meter 7 is debugged, make and show relevant parameter in display screen 9, then through the circulation of controlling means 4 control air current, can be through the knob 401 of rotating controlling means 4 this moment for connecting rod 403 drives baffle 402 and rotates round rotating seat 405, when closing, can turn to inside the sealing washer 404 with baffle 402, detect and show relevant parameter through display screen 9 after accomplishing, seal up gas through sealing washer 404.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A directly-heated gas sensor, characterized in that: including gas-supply pipe (1), the both ends of gas-supply pipe (1) are provided with flange (2), the centre of gas-supply pipe (1) is provided with test tube (6), be provided with fastening bolt (5) and gauge outfit flange (12) on test tube (6), the bottom of test tube (6) is located and is provided with detecting element (13) in gas-supply pipe (1), the top of test tube (6) is provided with detects table (7), it is provided with protective structure (11) to lie in test tube (6) department on gas-supply pipe (1), one side that lies in protective structure (11) on gas-supply pipe (1) is provided with controlling means (4).

2. A direct-heating type gas sensor according to claim 1, wherein: controlling means (4) include knob (401), baffle (402), connecting rod (403), sealing washer (404) and rotate seat (405), the one side that lies in protective structure (11) on gas-supply pipe (1) is provided with two and rotates seat (405), it is provided with connecting rod (403) to rotate between seat (405), the upper end of connecting rod (403) is provided with knob (401), the inside of gas-supply pipe (1) is located baffle (402) and locates to be provided with sealing washer (404), and just baffle (402) laminate mutually with sealing washer (404), baffle (402) rotate round connecting rod (403).

3. A direct-heating type gas sensor according to claim 1, wherein: protective structure (11) include fixed block (1101), fixing bolt (1102), place hole (1103) and holder (1104), fixed block (1101) are two circular-archs that mutually support, welding has holder (1104) between fixed block (1101), place hole (1103) have been seted up in the middle of holder (1104), corresponding screw hole has been seted up on fixed block (1101) respectively, be provided with fixing bolt (1102) in the screw hole, gauge outfit flange (12) are located between two fixing bolt (1102), test tube (6) run through and place hole (1103) department.

4. A direct-heating type gas sensor according to claim 1, wherein: the detection meter (7) is provided with a wire outlet hole (8), and the wire outlet hole (8) is connected with a power supply through a lead.

5. A direct-heating type gas sensor according to claim 1, wherein: the front end of the detection meter (7) is provided with a display screen (9) and a function key (10).

6. A direct-heating type gas sensor according to claim 1, wherein: the connecting flange (2) is connected with a gas pipeline through a fixing hole (3).