CN210401382U

CN210401382U - Formula gas sensor's protector and gas sensor cut straightly

Info

Publication number: CN210401382U
Application number: CN201921427426.XU
Authority: CN
Inventors: 王相; 庞喜龙; 田聪聪
Original assignee: Weihai Jingxun Changtong Electronic Technology Co Ltd
Current assignee: Weihai Jingxun Changtong Electronic Technology Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-04-24
Anticipated expiration: 2029-08-29

Abstract

The application provides a formula gas sensor's protector and gas sensor cut straightly relates to gas sensor technical field. The gas detector comprises a shell, wherein an opening is formed in the bottom of the shell, an connecting part of an external gas pipe is arranged on the shell, a cavity is formed in the shell, the external gas pipe is communicated with the cavity in the shell through the connecting part, and a gas detector head fixing assembly is arranged in the cavity. The built-in air chamber can get rid of the interference of external environment, and the trachea direct detection is gaseous directly inserting after filtering, increases the precision that gaseous detected, directly makes the gaseous detecting head contact survey gas, and gaseous the surveying of more efficient completion.

Description

Formula gas sensor's protector and gas sensor cut straightly

Technical Field

The utility model relates to a gas sensor technical field, concretely relates to formula gas sensor's protector and gas sensor cut straightly.

Background

Among the prior art, diffusion flow cell gas sensor with dustproof function is various, but because there is not good measuring environment, lead to the testing result to receive external environment's interference, cause the inaccuracy of gas detection precision, cause the testing result to report by mistake, and there is no way to prevent electromagnetic interference, just so make the meaning that has lost the detection, not only can not play the effect of detection, still cause very big work load for the staff, consequently design a section have can the quick contact survey gas, the dustproof flow cell gas sensor of formula of cuting straightly that does not receive external environment interference just seems to be especially important.

SUMMERY OF THE UTILITY MODEL

The testing result to the gas sensor who exists among the prior art can receive external environment's interference, causes the unsafe problem of gaseous detection precision, the utility model provides a formula gas sensor's that cut straightly protector and gas sensor to reach and to place optional position detection gas, and can invert, firm, built-in air chamber moreover, the direct contact of faster efficiency detects gas, can solve the technical problem that external environment disturbed gaseous detection completely, need not to use instruments such as screw and screwdriver, convenient and fast, easy installation, easy maintenance dismantles, provides the beneficial effect of staff's efficiency greatly.

The utility model provides a formula gas sensor's protector cut straightly, including the casing, the bottom of casing is equipped with the opening, is equipped with external tracheal adapting unit on the casing, and the inside of casing is equipped with the cavity, and external trachea passes through the inside cavity intercommunication of adapting unit and casing, is equipped with the fixed subassembly of gaseous detecting head in the cavity.

Furthermore, in order to realize a direct insertion type structure, the gas detecting head fixing assembly comprises a probe socket, a probe socket and a sealing plate, wherein a plurality of needle seats are arranged on the probe socket, and jacks matched with the needle seats are arranged on the probe socket; the bottom of the probe socket is provided with a plurality of second probes; the sealing plate is arranged at the bottom of the shell and is fixedly connected with the shell; the sealing plate is provided with a jack matched with the second probe; the probe socket, the probe socket and the sealing plate are sequentially spliced from top to bottom.

Further, in order to facilitate external connection of the air pipe, a mounting hole for external connection of the air pipe is formed in the shell, the connecting part adopts a pagoda joint, an internal thread is formed in the mounting hole, an external thread matched with the internal thread is formed at one end of the pagoda joint, and the pagoda joint is inserted into the mounting hole and is in threaded connection with the shell; the other end of the pagoda joint is used for connecting an air pipe.

Further, in order to improve the circulation effect of the monitored gas, the number of the mounting holes is two, the mounting holes are symmetrically distributed on the shell, and the symmetry can be axial symmetry or central symmetry.

Furthermore, in order to shield external electromagnetic interference, the shell is made of an aluminum alloy material.

Furthermore, in order to get rid of the impurity in the gas that is monitored, be equipped with dustproof filter screen between the top of casing and the fixed subassembly of gas detection head.

Further, in order to prevent gas leakage, a first sealing ring is arranged between the connecting part and the shell.

Further, in order to prevent gas leakage, a second sealing ring is arranged between the bottom of the shell and the gas probe fixing assembly.

Furthermore, in order to facilitate the insertion and fixation with the outer part, the sealing plate is provided with a fixing hole which can be used in an inverted manner.

The utility model provides a formula gas sensor's of cuting straightly protector of formula gas sensor's gas sensor, includes the gas detection head, and the bottom of gas detection head is equipped with a plurality of first probes with needle file matched with, and first probe inserts in the needle file.

The beneficial effects of the utility model reside in that:

the utility model provides a formula gas sensor's protector cut straightly includes the casing, and the casing adopts the aluminium alloy material preparation to form, can play the effect of shielding external electromagnetic wave. The fixed subassembly of gas detecting head after the grafting is accomplished is impressed in the cavity of casing, and formula gas sensor's protector, gas detecting head and the fixed subassembly of gas detecting head of cut straightly make up the built-in air chamber formula gas sensor of aluminum alloy shell, and the interference of external environment can be got rid of to built-in air chamber, and the gas is directly detected to the trachea of cut straightly after filtering, increases the precision that gaseous detected, directly makes gas detecting head contact detection gas, and the gaseous detection of more efficient completion. The shell shields external electromagnetic interference, ensures the stability of detection data and improves the detection precision. Impurity is got rid of through the filterable mode of dustproof filter screen to the fixed subassembly of inside gas detection head, and the centre seals through first sealing washer and second sealing washer, prevents that gas from revealing, then detects gas, has improved the precision that gas detection detected, has improved work efficiency, has reduceed the cost. The utility model discloses from having 6mm pagoda and connecting, can directly connect the external trachea, adopt the trachea to cut straightly the formula and connect, convenient to use is swift, need not external jointing equipment, can the gas sensor of lug connection connect the socket, there is a pair of fixed orifices bottom, can place the optional position and survey gas, and can invert, it is firm, and built-in air chamber, the direct contact of efficiency detects gas more, can solve the technical problem that external environment disturbed gas and surveyed completely, need not to use instruments such as screw and screwdriver, convenient and fast, easy installation, easy maintenance dismantles, staff's efficiency is greatly provided.

Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view of a protector for an in-line gas sensor according to an embodiment of the present invention.

Fig. 2 is a schematic view of an assembly structure of the housing and the connecting member according to an embodiment of the present invention.

Fig. 3 is a schematic assembled structural view of a protector for an in-line gas sensor according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the gas probe fixing assembly and the gas probe after being plugged in according to an embodiment of the present invention.

In the figure, the probe comprises a shell 1, a shell 2, a needle seat 3, a mounting hole 4, a gas probe 5, a probe socket 6, a sealing plate 7, a probe socket 8, a first probe 9, a jack 10, a pagoda joint 11, a dustproof filter screen 12, a first sealing ring 13, a second sealing ring 14, a fixing hole 15 and a second probe.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The following explains key terms appearing in the present invention.

The utility model provides a formula gas sensor's protector cut straightly, including casing 1.

Fig. 1 is an exploded view of a protector for an in-line gas sensor according to an embodiment of the present invention. As shown in fig. 1, although the housing 1 is a cylindrical conductor housing in the present embodiment, the housing 1 may have a shape other than a cylindrical shape in other embodiments.

The shell 1 is made of a conductor, in this embodiment, the shell 1 is made of an aluminum alloy material in a metal material, and can play a role in shielding external electromagnetic waves, and in other embodiments, other metal materials can be used.

The bottom of casing 1 is equipped with the opening, and the top and the periphery of casing 1 are sealed, are equipped with external tracheal adapting unit on casing 1, and the inside of casing 1 is equipped with the cavity, and external trachea passes through adapting unit and casing 1's inside cavity intercommunication. In this embodiment, the connecting component is a pagoda joint 10 with a diameter of 6mm, and the pagoda joint 10 is perpendicular to the length extension direction of the shell 1. One end of the pagoda joint 10 is communicated with the external air pipe, and the other end of the pagoda joint 10 is communicated with the cavity of the shell 1. The gas to be detected enters the cavity of the housing 1 through the gas pipe and the pagoda joint 10.

Be equipped with on casing 1 and be used for external tracheal mounting hole 3, be equipped with the internal thread in the mounting hole 3, the one end of pagoda joint 10 is equipped with the external screw thread that suits with the internal thread, and in pagoda joint 10 inserted mounting hole 3, with casing 1 threaded connection, adopt threaded connection's mode, the dismouting of pagoda joint 10 of being convenient for.

In other embodiments, the connecting part may also be directly welded to the housing 1, the connecting part is communicated with the cavity of the housing 1, and the gas to be detected enters the cavity of the housing 1 through the external air pipe and the connecting part in sequence.

A gas probe fixing component is arranged in the cavity. In the embodiment, the gas detection head fixing assembly comprises a probe socket 5, a probe socket 7 and a sealing plate 6 which are vertically inserted in sequence, wherein a plurality of needle beds 2 are arranged on the probe socket 5, and jacks 9 matched with the needle beds 2 are arranged on the probe socket 7; the bottom of the probe socket 7 is provided with a plurality of second probes 15; the sealing plate 6 is arranged at the bottom of the shell 1 and is fixedly connected with the shell 1; the sealing plate 6 is provided with a jack matched with the second probe 15; the probe socket 5, the probe socket 7 and the sealing plate 6 are sequentially and directly inserted from top to bottom.

Fig. 2 is a schematic view of an assembly structure of the housing and the connecting member according to an embodiment of the present invention. As shown in fig. 2, in the present embodiment, the number of the mounting holes 3 is two, and the mounting holes are symmetrically distributed on the housing 1, and the symmetry may be axial symmetry or central symmetry. Therefore, the number of the pagoda joints 10 is two, the two pagoda joints 10 are respectively inserted into the corresponding mounting holes 3, the two pagoda joints 10 can be interchanged from left to right, and the air pipes can be directly inserted.

Fig. 3 is a schematic assembled structural view of a protector for an in-line gas sensor according to an embodiment of the present invention. As shown in fig. 3, the bottom closing plate 6 is disposed at the bottom of the housing 1 and can be fixedly connected to the housing 1.

In general, the protector of the in-line gas sensor is used in a vertical position as shown in fig. 1, and in order to meet the placement requirements of different positions, an invertible fixing hole 14 is additionally arranged on the bottom sealing plate 6. In this embodiment, the protector of the in-line gas sensor can be placed vertically in the forward direction as shown in fig. 1 through the invertible fixing hole 14. In other embodiments, the protection device can be installed and used by inverting the protection device through the invertible fixing hole 14, and when the protection device is used in an inverted mode, the use function of the protection device is not affected, and the use range of the protection device is enlarged.

The number of the fixing holes 14 is two, and the fixing holes are symmetrically distributed on the bottom closing plate 6. The fixing hole 14 is used for inserting and fixing the protector of the in-line gas sensor and an external part. The fixing holes 14 are provided to enable stable installation of a fixing position, so that the sensor can be fixed to any wall surface or the like.

A dustproof filter screen 11 is arranged between the top of the shell 1 and the gas detector fixing component. A first sealing ring 12 is arranged between the pagoda joint 10 and the shell 1. And a second sealing ring 13 is arranged between the bottom of the shell 1 and the gas probe fixing component. Impurity is got rid of through the filterable mode of dustproof filter screen 11 to the fixed subassembly of inside gas detection head, and the centre is sealed through first sealing washer 12 and second sealing washer 13, prevents that gas from revealing, then detects gas, has improved the precision that gas detected, has improved work efficiency, has reduceed the cost.

The utility model provides a formula gas sensor's that cut straightly protector, from having 6mm pagoda joint 10, can the lug connection trachea, need not external connecting equipment, can the lug connection gas sensor connect the socket, there is a pair of fixed orifices 14 in the bottom, can place optional position detection gas, and can invert, it is firm, and built-in air chamber, the direct contact of faster efficiency detects gas, can solve the gaseous technical problem of surveying of external environment interference completely, need not to use instruments such as screw and screwdriver, high convenience and high speed, easy installation, easy maintenance dismantlement, staff's efficiency is greatly provided.

The application still provides a gas sensor, including the protector and the gas detection head 4 that cut straightly formula gas sensor, figure 4 is the utility model discloses the fixed subassembly of gas detection head in an embodiment constructs the schematic diagram with the gas detection head after pegging graft. Referring to fig. 1 and 4, the bottom of the gas probe 4 is provided with a plurality of first probes 8 matched with the needle base 2, and the first probes 8 are inserted into the needle base 2. The gas detecting head 4 in the prior art can be selected for use, and the quantity and the structure of needle file 2 can be set up according to the quantity and the structure of the first probe 8 of taking certainly in 4 bottoms of gas detecting head for in first probe 8 can insert needle file 2, first probe 8 carries out communication connection with needle file 2. In this embodiment, the first probe 8 is a three-electrode electrochemical sensor.

In the gas sensor provided by the present application, the second seal ring 13 is disposed between the bottom of the housing 1 and the gas probe 4, and the second seal ring 13 plays a role in sealing the housing 1 and the gas probe 4. In order to remove impurities in the detected gas, a dustproof filter screen 11 is arranged between the top of the shell 1 and the gas detection head 4.

The gas detector 4 is used for providing a driving circuit for the first probe 8 and converting a weak signal output by the first probe 8 into an AD signal which can be processed by the singlechip.

In order to prevent gas leakage, a first sealing ring 12 is arranged between the pagoda joint 10 and the shell 1. And a second sealing ring 13 is arranged between the dustproof filter screen 11 and the gas detector 4. The first seal ring 12 and the second seal ring 13 are both O-shaped seal rings. The first sealing ring 12 and the second sealing ring 13 both play a role of sealing and prevent gas from leaking.

In this embodiment, three first probes 8 are disposed at the bottom of the gas probe 4, three sockets corresponding to the first probes 8 are disposed on the corresponding needle base 2, and the first probes 8 are inserted into the sockets on the needle base 2. The probe socket 7 is provided with three jacks 9 which are matched with the needle stand 2. In this embodiment, five second probes 15 are disposed at the bottom of the probe socket 7, and the probe socket 7 performs a signal conversion function. The five second probes 15 can output TTL level and analog voltage, and 485 and 232 interface levels can be selected.

The probe socket 7 comprises a singlechip and a DA chip and is used for processing data and performing analog-to-digital conversion; and a standard gas concentration value is output, a user can design a secondary development circuit by himself, and the secondary development circuit can be used for threshold judgment and local alarm and can also upload a server to monitor data.

The gas detector fixing component and the gas detector 4 which are inserted are pressed into the cavity of the shell 1, and the gas detector fixing component and the gas detector 4 are combined into the aluminum alloy shell built-in gas chamber type gas sensor. The built-in air chamber can eliminate the interference of external environment, increases the precision of gas detection, directly makes the gas detection head contact and surveys gas, and gaseous the surveying of completion of higher efficiency.

Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a protector of formula gas sensor cut straightly which characterized in that: including casing (1), the bottom of casing (1) is equipped with the opening, is equipped with external tracheal adapting unit on casing (1), and the inside of casing (1) is equipped with the cavity, and external trachea passes through the inside cavity intercommunication of adapting unit and casing (1), is equipped with the fixed subassembly of gas detection head in the cavity.

2. The in-line gas sensor guard of claim 1, wherein: the gas detection head fixing assembly comprises a probe socket (5), a probe socket (7) and a sealing plate (6), wherein the probe socket (5) is provided with a plurality of needle seats (2), and the probe socket (7) is provided with jacks (9) matched with the needle seats (2); the bottom of the probe socket (7) is provided with a plurality of second probes (15); the sealing plate (6) is arranged at the bottom of the shell (1) and is fixedly connected with the shell (1); the sealing plate (6) is provided with a jack matched with the second probe (15); the probe socket (5), the probe socket (7) and the sealing plate (6) are sequentially spliced from top to bottom.

3. The in-line gas sensor guard of claim 1, wherein: the air pipe connecting structure is characterized in that a mounting hole (3) for externally connecting an air pipe is formed in the shell (1), the connecting part adopts a pagoda joint (10), an internal thread is formed in the mounting hole (3), an external thread matched with the internal thread is formed at one end of the pagoda joint (10), and the pagoda joint (10) is inserted into the mounting hole (3) and is in threaded connection with the shell (1);

the other end of the pagoda joint (10) is used for connecting an air pipe.

4. The in-line gas sensor guard of claim 3, wherein: the number of the mounting holes (3) is two, and the mounting holes are symmetrically distributed on the shell (1).

5. The in-line gas sensor guard of claim 1, wherein: the shell (1) is made of an aluminum alloy material.

6. The in-line gas sensor guard of claim 1, wherein: and a dustproof filter screen (11) is arranged between the top of the shell (1) and the gas probe fixing component.

7. The in-line gas sensor guard of claim 1, wherein: a first sealing ring (12) is arranged between the connecting part and the shell (1).

8. The in-line gas sensor guard of claim 1, wherein: and a second sealing ring (13) is arranged between the bottom of the shell (1) and the gas probe fixing component.

9. The in-line gas sensor guard of claim 2, wherein: the sealing plate (6) is provided with a fixing hole (14) which can be used in an inverted way.

10. A gas sensor comprising a guard of an in-line gas sensor according to any of claims 1 to 9, wherein: the gas probe comprises a gas probe head (4), wherein a plurality of first probes (8) matched with a needle seat (2) are arranged at the bottom of the gas probe head (4), and the first probes (8) are inserted into the needle seat (2).