CN220134891U - Automobile exhaust sampling connecting pipe - Google Patents

Abstract

The utility model discloses an automobile exhaust sampling connecting pipe, which comprises a connecting pipe, wherein a sampling pipe is connected to a back cover of the connecting pipe in a threaded manner, a plurality of spring pieces are arranged around a pipe orifice of the connecting pipe, the spring pieces are obliquely arranged from the pipe orifice of the connecting pipe to the central axis direction of the connecting pipe, guide rollers are arranged at the end parts of the spring pieces, locking screws are symmetrically arranged on the connecting pipe, and one end of each locking screw, which is positioned in the connecting pipe, is connected with a locking piece. The beneficial effects of the utility model are as follows: the funnel-shaped structure is formed by a plurality of spring pieces which are arranged in a surrounding manner, the funnel-shaped structure is matched with the guide roller to guide when the tail gas pipe is connected with the connecting pipe, the sampling pipe is positioned at the central position, and then the locking piece is driven by the locking screw rod to fix the connecting pipe on the tail gas pipe, so that the probe is not required to be fixed, the operation is convenient, and the stability is good.

Description

Automobile exhaust sampling connecting pipe

Technical Field

The utility model relates to the technical field of automobile exhaust detection equipment, in particular to an automobile exhaust sampling connecting pipe.

Background

The automobile exhaust is exhaust gas exhausted by an automobile exhaust pipe, contains a large amount of pollution, is one of main sources of air pollution, and when the automobile exhaust gas is sampled and detected, a sampling probe needs to extend into the automobile exhaust pipe.

Disclosure of Invention

The utility model aims to provide an automobile exhaust sampling connecting pipe so as to solve the problems in the background art.

The aim of the utility model is achieved by the following technical scheme:

the utility model provides an automobile exhaust sampling connecting pipe, includes the connecting pipe, threaded connection has the sampling tube on the back of the body of connecting pipe, the mouth of pipe of connecting pipe encircles and is equipped with a plurality of spring pieces, the spring piece by the mouth of pipe of connecting pipe to the axis direction slope setting of connecting pipe, the tip of spring piece is equipped with guide roller, the symmetry is equipped with locking screw on the connecting pipe, locking screw is located one end in the connecting pipe is connected with the retaining member.

Further, the guide roller is located at the outer side of the sampling tube and is provided with a gap with the sampling tube.

Still further, the retaining member includes connecting rod, adapter sleeve and arc fastening plate, the connecting rod with locking screw passes through the adapter sleeve rotates to be connected, set up the adaptation on the spring leaf the bar hole of connecting rod size, the other end of connecting rod passes the bar hole and connect the arc fastening plate.

Furthermore, one end of the locking screw rod, which is positioned outside the connecting pipe, is connected with an operation handle, and the connecting pipe is provided with a connecting screw sleeve which is matched with the locking screw rod.

Furthermore, the end part of the sampling tube, which is positioned outside the connecting tube, is provided with screw thread teeth.

Furthermore, a flange is arranged inwards at the pipe orifice of the connecting pipe, and the flange is fixedly connected with the spring piece.

The utility model has the following advantages:

1. the funnel-shaped structure is formed by a plurality of spring pieces which are arranged in a surrounding manner, the funnel-shaped structure is matched with the guide roller to guide when the tail gas pipe is connected with the connecting pipe, the sampling pipe is positioned at the central position, and then the locking piece is driven by the locking screw rod to fix the connecting pipe on the tail gas pipe, so that the probe is not required to be fixed, the operation is convenient, and the stability is good.

2. After the sampling is finished, the locking screw is operated to loosen the tail gas pipe, the connecting pipe can be automatically separated from the tail gas pipe under the action of the spring piece and the guide roller, and workers do not need to contact the connecting pipe in a high-temperature state, so that the safety is high.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic cross-sectional view of the present utility model.

Fig. 3 is a schematic elevational view of the present utility model.

Fig. 4 is a schematic structural view of the connecting rod.

In the figure, a 1-connecting pipe, a 101-flange, a 2-sampling pipe, a 3-spring piece, a 4-guide roller, a 5-locking screw, a 6-connecting rod, a 7-connecting sleeve, an 8-arc-shaped fastening plate, a 9-strip-shaped hole, a 10-operating handle, a 11-connecting screw sleeve and 12-thread teeth.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment of the present utility model is shown as:

the utility model provides an automobile exhaust sampling connecting pipe, includes connecting pipe 1, threaded connection has sampling tube 2 on the back of the body of connecting pipe 1, the mouth of pipe of connecting pipe 1 encircles and is equipped with a plurality of spring pieces 3, spring piece 3 by the mouth of pipe of connecting pipe 1 to the axis direction slope setting of connecting pipe 1, the tip of spring piece 3 is equipped with guide roller 4, the symmetry is equipped with locking screw 5 on the connecting pipe 1, locking screw 5 is located one end in the connecting pipe 1 is connected with the retaining member.

Specifically, the guide roller 4 is located at the outer side of the sampling tube 2 and has a gap with the sampling tube 2; the mouth of pipe inwards of connecting pipe 1 is equipped with flange 101, flange 101 with spring leaf 3 fixed connection, spring leaf 3 select to use the stainless steel sheetmetal that has the arcwall face.

Through encircle setting up spring leaf 3 at the mouth of pipe, form funnel-shaped structure, guide roller 4 that the cooperation tip set up leads when connecting the tail trachea at connecting pipe 1, and after sampling tube 2 connects, sampling tube 2 is in central point put, drives the retaining member through locking screw 5 afterwards and fixes the connecting pipe on the tail trachea, need not fix the probe again, can realize the centering sample of probe, convenient operation, stability is good.

When taking out, the tail gas pipe is loosened by operating the locking screw 5, and under the action of the spring piece, the connecting pipe 1 can be automatically separated from the tail gas pipe, so that a worker does not need to contact the connecting pipe in a high-temperature state, and the safety is high.

In this embodiment, the locking member includes a connecting rod 6, a connecting sleeve 7 and an arc-shaped fastening plate 8, the connecting rod 6 and the locking screw 5 are rotationally connected through the connecting sleeve 7, a strip-shaped hole 9 adapted to the size of the connecting rod 6 is formed in the spring piece 3, and the other end of the connecting rod 6 passes through the strip-shaped hole 9 and is connected with the arc-shaped fastening plate 8.

Specifically, referring to fig. 4, the connecting rod 6 is inserted in the area of the strip hole 9 and has a square tube structure, so that the connecting rod 6 is prevented from rotating due to the limitation of the strip hole, the position of the arc-shaped fastening plate 8 is ensured to deviate, and the stability of the tail gas pipe in locking and fastening is ensured.

The connecting sleeve 7 is connected with the connecting rod 6 and the locking screw 5 in three modes, specifically: one way is that the connecting sleeve 7 is fixedly connected with the connecting rod 6, but is rotationally connected with the locking screw 5; the other mode is that the connecting sleeve 7 is fixedly connected with the locking screw 5, but is rotationally connected with the connecting rod 6; the connecting sleeve 7 can also be connected with the connecting rod 6 and the locking screw 5 in a rotating way; when the locking device is specifically arranged, a person skilled in the art can specifically select according to actual conditions, and only the relative rotation between the connecting rod 6 and the locking screw rod needs to be realized.

One end of the locking screw 5, which is positioned outside the connecting pipe 1, is connected with an operation handle 10, and the connecting pipe 1 is provided with a connecting screw sleeve 11 which is matched with the locking screw 5.

The connecting rod 6 is arranged on the spring piece in a penetrating way, when the large-size tail gas pipe is installed, the locking screw 5 is rotated outwards, so that the arc-shaped fastening plate can be pulled outwards to the spring piece 3, the guide roller on the corresponding spring piece extrudes the tail gas pipe, and the connecting pipe 1 is convenient to be sleeved.

Simultaneously, connecting rod 6 wears to establish on spring leaf 3, and then makes corresponding arc fastening plate 8 and the relative setting of spring leaf 3 of symmetry position, and locking screw 5 rotation stroke is different in both sides, and the arc fastening plate of one side contacts with the tail trachea earlier, causes the extrusion force that spring leaf 3 on the two symmetry positions received different, and the staff can judge the contact state of arc fastening plate 8 and tail trachea according to the resistance of feeding back on the operating handle 10, and then adjusts the rotation stroke of both sides locking screw 5.

Further, a thread tooth 12 is provided at the end of the sampling tube 2 located outside the connecting tube 1.

The screw thread tooth that sets up is used for connecting the sample hose, and then connects detection device to detect automobile exhaust.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. An automobile exhaust sampling connecting pipe which is characterized in that: including the connecting pipe, threaded connection has the sampling tube on the back of the body lid of connecting pipe, the mouth of pipe of connecting pipe encircles and is equipped with a plurality of spring leaves, the spring leaf by the mouth of pipe of connecting pipe to the axis direction slope setting of connecting pipe, the tip of spring leaf is equipped with guide roller, the symmetry is equipped with locking screw on the connecting pipe, locking screw is located one end in the connecting pipe is connected with the retaining member.

2. An automobile exhaust sampling connection pipe according to claim 1, wherein: the guide roller is positioned at the outer side of the sampling tube and is provided with a gap with the sampling tube.

3. An automobile exhaust sampling connection pipe according to claim 1, wherein: the locking piece comprises a connecting rod, a connecting sleeve and an arc-shaped fastening plate, wherein the connecting rod is connected with the locking screw rod in a rotating mode through the connecting sleeve, a strip-shaped hole which is matched with the connecting rod in size is formed in the spring piece, and the other end of the connecting rod penetrates through the strip-shaped hole and is connected with the arc-shaped fastening plate.

4. An automobile exhaust sampling connection pipe according to claim 3, wherein: one end of the locking screw rod, which is positioned outside the connecting pipe, is connected with an operation handle, and the connecting pipe is provided with a connecting screw sleeve which is matched with the locking screw rod.

5. An automobile exhaust sampling connection pipe according to claim 1, wherein: the end part of the sampling tube, which is positioned outside the connecting tube, is provided with a thread tooth.

6. An automobile exhaust sampling connection pipe according to claim 1, wherein: the mouth of pipe of connecting pipe inwards is equipped with the flange, the flange with spring leaf fixed connection.