CN215768559U - Exhaust pipe for mercury detector - Google Patents

Abstract

The utility model discloses an exhaust pipe for a mercury tester, and relates to the technical field of mercury testers. The wind-proof and wind-proof connector comprises a connecting piece, a first pipe body and a second pipe body, wherein the connecting piece comprises a ventilating pipe and a group of wind-proof boards, the ventilating pipe comprises a rectangular pipe, two ends of the rectangular pipe are respectively connected with the end parts of the first pipe body and the second pipe body through connecting ends, the upper part of the rectangular pipe is fixedly communicated with an outer channel, one side of the lower part of the rectangular pipe is provided with a sunken part, one side of the upper part of the outer channel, which is far away from the sunken part, is fixedly communicated with an outer connecting pipe, rotating shafts are respectively fixed at the inner middle part and one end of the outer channel, which is far away from the sunken part, and one end of the group of wind-proof boards is respectively arranged on the two rotating shafts through sleeves and is rotatably connected with the two rotating shafts. According to the utility model, the novel connecting piece is arranged on the tube body between the mercury detector and the sample tube, so that the tube body can have a backflow prevention function under the condition of normal use, and the service life and subsequent detection precision of the mercury detector are ensured.

Description

Exhaust pipe for mercury detector

Technical Field

The utility model belongs to the technical field of mercury detectors, and particularly relates to an exhaust pipe for a mercury detector.

Background

In order to improve the detection efficiency, the detection precision and the sensitivity of mercury detector, the shorter the body that uses is the better, and the sample pipe passes through the pipeline directly to be connected with mercury detector simultaneously, simultaneously because the pipeline is shorter relatively, if negative pressure state appears in the pump body in the mercury detector, then the condition of backward flow easily appears to influence the detection precision, if the material backward flow then can influence the life and subsequent detection precision of mercury detector in to mercury detector simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an exhaust pipe for a mercury meter, which has the function of backflow prevention under the condition of ensuring normal use of a pipe body by arranging a novel connecting piece on the pipe body between the mercury meter and a sample pipe, and ensures the service life and the subsequent detection precision of the mercury meter.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an exhaust pipe for a mercury detector, which comprises a connecting piece, a first pipe body and a second pipe body;

the connecting piece comprises a vent pipe and a group of wind shields, the vent pipe comprises a rectangular pipe, and two ends of the rectangular pipe are respectively connected with the end parts of the first pipe body and the second pipe body through connecting ends;

an outer channel is fixedly communicated with the upper part of the rectangular tube, a concave part is arranged on one side of the lower part of the rectangular tube, an outer connecting tube is fixedly communicated with one side of the upper part of the outer channel, which is far away from the concave part, and rotating shafts are fixed at the inner middle part of the outer channel and one end of the outer channel, which is far away from the concave part;

one end of each wind shield is arranged on the two rotating shafts through a sleeve and is rotationally connected with the two rotating shafts, and a coil spring is fixed between the two ends of each sleeve and the two sides in the outer channel;

a first limiting edge is arranged in the outer channel and between the concave part and the outer connecting pipe, a second limiting edge is arranged on one side in the concave part, and one surface of a wind shield is attached to and movably connected with one side edge of the first limiting edge and one side edge of the second limiting edge;

the lower portion of the rotating shaft far away from the depressed part in the outer channel is fixed with a third limiting edge, the outer pipe is far away from the third limiting edge and is fixed with a fourth limiting edge along an inner wall, and the other surface of the wind shield is attached to and movably connected with the fourth limiting edge and the third limiting edge along the upper portion of the inner top surface of the outer channel.

Furthermore, one end of the first pipe body, which is far away from the connecting piece, is connected with the mercury detector, and one end of the second pipe body, which is far away from the connecting piece, is connected with the sample tube.

Further, the sleeve both ends have all been seted up and have been accomodate the groove, the coil spring is fixed and is accomodate the inslot.

Furthermore, fixed rings are fixed at two ends of the coil spring, and a group of positioning end rods are fixed on one end face, far away from the coil spring, of each fixed ring.

Further, a set of first constant head tank has been seted up to the groove inner wall of accomodating, a set of second constant head tank has been seted up to outer passageway inner wall and the position that is located the pivot outside, two location end bars at coil spring both ends set up respectively in a set of first constant head tank and second constant head tank.

Furthermore, the vent pipe is composed of two half pipe fittings, and the two half pipe fittings are symmetrically arranged.

The utility model has the following beneficial effects:

according to the utility model, the novel connecting piece is arranged on the tube body between the mercury detector and the sample tube, so that the tube body can have a backflow prevention function under the condition of normal use, and the service life and subsequent detection precision of the mercury detector are ensured.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 a schematic diagram of a connector for an exhaust pipe of a mercury vapor meter according to the present invention;

FIG. 2 is a top view of the structure of the connector;

FIG. 3 is a cross-sectional view of the structure at A-A in FIG. 2;

FIG. 4 is a cross-sectional view of the structure at B-B in FIG. 2;

FIG. 5 is a schematic view of the structure of the windshield;

FIG. 6 is a schematic view of the construction of the coil spring;

FIG. 7 is a schematic view of the present invention after connection;

FIG. 8 is a schematic structural view of the half pipe body;

in the drawings, the components represented by the respective reference numerals are listed below:

1-connecting piece, 2-first pipe body, 3-second pipe body, 4-wind shield, 5-rectangular pipe, 6-coil spring, 7-mercury detector, 8-sample pipe, 9-half pipe body, 401-sleeve, 402-accommodating groove, 403-first positioning groove, 501-connecting end, 502-outer channel, 503-recessed part, 504-outer connecting pipe, 505-rotating shaft, 506-first limiting edge, 507-second limiting edge, 508-third limiting edge, 509-fourth limiting edge, 510-second positioning groove, 601-fixing ring and 602-positioning end rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention is an exhaust pipe for a mercury vapor detector, comprising a connecting member 1, a first pipe 2 and a second pipe 3;

the connecting piece 1 comprises a vent pipe and a group of wind shields 4, the vent pipe comprises a rectangular pipe 5, and two ends of the rectangular pipe 5 are respectively connected with the end parts of the first pipe body 2 and the second pipe body 3 through connecting ends 501;

an outer channel 502 is fixedly communicated with the upper part of the rectangular tube 5, a concave part 503 is arranged on one side of the lower part of the rectangular tube 5, an outer connecting tube 504 is fixedly communicated with one side of the upper part of the outer channel 502, which is far away from the concave part 503, and rotating shafts 505 are respectively fixed at the inner middle part of the outer channel 502 and one end of the outer channel, which is far away from the concave part 503;

one end of each wind shield 4 is arranged on the two rotating shafts 505 through a sleeve 401 and is rotationally connected with the two rotating shafts 505, and a coil spring 6 is fixed between the two ends of the sleeve 401 and the two inner sides of the outer channel 502;

a first limiting edge 506 is arranged in the outer channel 502 and between the recessed part 503 and the outer connecting pipe 504, a second limiting edge 507 is arranged on one side in the recessed part 503, and one surface of a wind shield 4 is attached to and movably connected with one side edge of the first limiting edge 506 and one side edge of the second limiting edge 507;

a third limiting edge 508 is fixed on the lower part of the rotating shaft 505 in the outer channel 502 far away from the recessed part 503, a fourth limiting edge 509 is fixed on an inner wall of the outer connecting pipe 504 far away from the third limiting edge 508, and one surface of the other wind shield 4 is attached and movably connected with the inner top surface of the outer channel 502 at the upper parts of the fourth limiting edge 509 and the third limiting edge 508.

As shown in fig. 7, one end of the first tube 2, which is far away from the connector 1, is connected to the mercury detector 7, and one end of the second tube 3, which is far away from the connector 1, is connected to the sample tube 8.

As shown in fig. 4 to 5, the sleeve 401 has receiving grooves 402 formed at both ends thereof, and the coil spring 6 is fixed in the receiving grooves 402.

As shown in fig. 4 and 6, fixing rings 601 are fixed to both ends of the coil spring 6, and a set of positioning end rods 602 are fixed to an end surface of the fixing ring 601 away from the coil spring 6.

As shown in fig. 4-5 and 8, a set of first positioning grooves 403 is formed on the inner wall of the receiving groove 402, a set of second positioning grooves 510 is formed on the inner wall of the outer channel 502 and located at the outer side of the rotating shaft 505, and two positioning end rods 602 at two ends of the coil spring 6 are respectively disposed in the set of first positioning grooves 403 and the set of second positioning grooves 510.

As shown in fig. 8, the vent pipe is composed of two half pipe members 9, the two half pipe members 9 are symmetrically arranged, and the half pipe members 9 are integrally formed and then fixed by welding.

The working principle of the utility model is as follows: when needing to exhaust, gaseous through first body 2 and link 501 row to rectangular pipe 5 in, because the fourth is spacing to be followed 509 existence and is taken over the deep bead 4 on 504 and block up external pipe 504, the pressure of gas promotes deep bead 4 in the rectangular pipe 5 and lifts the intercommunication that realizes the rectangular pipe 5 of deep bead 4 both sides, and gaseous follow-up discharges through second body 3.

If when stopping the exhaust, can drive the deep bead 4 at the middle part of rectangular tube 5 through coil spring 6 and paste first spacing edge 506 and the spacing shutoff that realizes rectangular tube 5 along 507 of second, if negative pressure state appears, pressure drives deep bead 4 of outer takeover 504 lower part and breaks away from the spacing 509 edge of fourth and realizes being connected of outer takeover 504 and rectangular tube 5, avoids the negative pressure to cause sample tube 8 the condition that the backward flow appears.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (6)

1. An exhaust pipe for a mercury porosimeter, characterized in that: comprises a connecting piece (1), a first pipe body (2) and a second pipe body (3);

the connecting piece (1) comprises a vent pipe and a group of wind shields (4), the vent pipe comprises a rectangular pipe (5), and two ends of the rectangular pipe (5) are respectively connected with the end parts of the first pipe body (2) and the second pipe body (3) through connecting ends (501);

an outer channel (502) is fixedly communicated with the upper part of the rectangular tube (5), a concave part (503) is arranged on one side of the lower part of the rectangular tube (5), an outer connecting tube (504) is fixedly communicated with one side of the upper part of the outer channel (502) far away from the concave part (503), and rotating shafts (505) are fixed at the inner middle part of the outer channel (502) and one end of the outer channel far away from the concave part (503);

one end of each wind shield (4) is arranged on each of the two rotating shafts (505) through a sleeve (401) and is in rotating connection with the two rotating shafts (505), and a coil spring (6) is fixed between each of the two ends of each sleeve (401) and the inner two sides of the outer channel (502);

a first limiting edge (506) is arranged in the outer channel (502) and between the recessed portion (503) and the outer connecting pipe (504), a second limiting edge (507) is arranged on one side in the recessed portion (503), and one surface of the wind shield (4) is attached to and movably connected with one side of the first limiting edge (506) and one side of the second limiting edge (507);

a third limiting edge (508) is fixed to the lower portion of the rotating shaft (505) far away from the recessed portion (503) in the outer channel (502), a fourth limiting edge (509) is fixed to the inner wall of the outer connecting pipe (504) far away from the third limiting edge (508), and the other surface of the wind shield (4) is attached to and movably connected with the inner top surface of the outer channel (502) on the upper portion of the fourth limiting edge (509) and the third limiting edge (508).

2. Exhaust pipe for a mercury-vapor meter according to claim 1, characterized in that the end of the first pipe body (2) remote from the connection piece (1) is connected to a mercury-vapor meter (7), and the end of the second pipe body (3) remote from the connection piece (1) is connected to a sample tube (8).

3. An exhaust pipe for a mercury porosimeter according to claim 1, wherein the sleeve (401) is provided with a receiving groove (402) at both ends thereof, and the coil spring (6) is fixed in the receiving groove (402).

4. An exhaust pipe for a mercury porosimeter according to claim 3, characterized in that fixing rings (601) are fixed to both ends of the coil spring (6), and a set of positioning end rods (602) are fixed to one end face of the fixing rings (601) away from the coil spring (6).

5. The exhaust pipe for the mercury porosimeter according to claim 4, wherein the inner wall of the receiving groove (402) is formed with a set of first positioning grooves (403), the inner wall of the outer channel (502) is formed with a set of second positioning grooves (510) at positions outside the rotating shaft (505), and the two positioning end rods (602) at the two ends of the coil spring (6) are respectively disposed in the set of first positioning grooves (403) and the set of second positioning grooves (510).

6. An exhaust pipe for a mercury porosimeter according to claim 1, characterized in that the vent pipe consists of two half-pipes (9), the two half-pipes (9) being arranged symmetrically.

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