CN207514440U - A pipe fitting connector on an exhaust gas purification device - Google Patents

Abstract

The utility model discloses a pipe fitting connecting piece on tail gas purification device, including two sets of relative pipe subassemblies, the pipe subassembly comprises outer tube and inner union, the outer end shaping of outer tube has first flange, the shaping has a plurality of mounting holes on the first flange, the shaping has the boss of rectangle on the outer wall of outer tube, inner union is pegged graft in outer tube, it is fixed with a plurality of sealing washers all to peg graft on the outer wall of inner union one end, the sealing washer presses on the inner wall of outer tube, inner union closes on the outer wall of sealing washer and is formed with annular regulation recess respectively, it has fastening bolt to peg graft in the regulation recess, fastening bolt spiro union is on the boss of outer tube, the other end shaping of inner union has the second flange; the inner connecting pipe of one pipe component is inserted and sleeved with a movable sleeve, an inner thread sleeve is formed on the outer ring of the movable sleeve, an outer thread sleeve is inserted and sleeved on the inner connecting pipe of the other pipe component, and the outer thread sleeve is in threaded connection with the inner thread sleeve of the movable sleeve. The utility model discloses can conveniently realize the erection joint between purification processor and the blast pipe.

Description

A pipe fitting connector on an exhaust gas purification device

Technical field:

The utility model relates to the technical field of exhaust gas purification equipment, in particular to a pipe connector on an exhaust gas purification device.

Background technique:

Automobile exhaust gas purification processor is the purification and emission equipment that must be installed on all automobiles and vehicles. The exhaust gas purification processor is connected to the exhaust pipe through the connecting pipe, and the existing connecting pipe is generally a corrugated pipe or hose. In order to enhance the sealing The joints of some of the corrugated pipes or hoses are formed with flanges, and the connection with the exhaust pipe or the purification processor is realized through the flanges, but because of the location of the installation holes, it is inconvenient to install, and Some need to twist the bellows or hose, which is easy to cause damage to the bellows or hose.

Utility model content:

The purpose of this utility model is to provide a pipe connector on the exhaust gas purification device for the deficiencies of the prior art, which can facilitate the connection between the purification processor and the exhaust pipe on the basis of ensuring the connection strength and sealing. connection between installations.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A pipe fitting connector on an exhaust gas purification device, including two sets of opposite pipe assemblies, the pipe assembly is composed of an outer casing and an inner connecting pipe, the outer end of the outer casing is formed with a first flange, and a number of mounting brackets are formed on the first flange. The outer wall of the outer casing is formed with a rectangular boss, the inner connecting pipe is inserted into the outer casing, and a number of sealing rings are inserted and fixed on the outer wall of one end of the inner connecting pipe, and the sealing ring is pressed against the inner wall of the outer casing. Ring-shaped adjustment grooves are respectively formed on the outer wall adjacent to the sealing ring, and fastening bolts are inserted into the adjustment grooves, and the fastening bolts are screwed on the boss of the outer casing, and the other end of the inner connecting pipe is formed with a second flange There is a movable sleeve on the inner connecting pipe of one pipe assembly, an internal threaded sleeve is formed on the outer ring of the movable sleeve, and an external threaded sleeve is inserted on the inner connecting pipe of the other pipe assembly, and the external threaded sleeve is screwed on the movable sleeve In the inner threaded sleeve, several clamping grooves are formed on the internal threaded sleeve, and several clamping holes are formed on the outer wall of the external threaded sleeve.

Preferably, a sealing groove is formed on the outer end surface of the first flange on the outer sleeve.

Preferably, the widths of the grooves of the inner connecting pipes are larger than the diameters of the fastening bolts.

Preferably, the inner diameter of the outer sleeve is equal to the outer diameter of the inner connecting pipe.

Preferably, there are at least two sealing rings on the inner connecting pipe; an annular groove is formed on the outer end surface of the second flange of the inner connecting pipe, and a sealing ring is inserted into the groove.

Preferably, the inner diameter of the movable sleeve is larger than the outer diameter of the inner connecting pipe, the inner diameter of the inner threaded sleeve on the movable sleeve is larger than the outer diameter of the second flange, and the inner diameter of the outer threaded sleeve is larger than the outer diameter of the inner connecting pipe.

Preferably, the length of the internal thread sleeve on the movable sleeve is greater than twice the thickness of the second flange.

Preferably, there are at least three card slots, the card slots are evenly distributed in a ring around the central axis of the external thread sleeve on the external thread sleeve, and at least three card holes are provided and are evenly distributed in a ring around the central axis of the internal thread sleeve on the internally threaded sleeve.

The beneficial effect of the utility model is that the structure is simple, and the installation and connection between the purification processor and the exhaust pipe can be realized conveniently on the basis of ensuring the connection strength and sealing.

Description of drawings:

Fig. 1 is the three-dimensional structural representation of the utility model;

Fig. 2 is a structural schematic diagram of a half section of the utility model.

In the figure: 10, pipe assembly; 1, outer casing; 11, boss; 12, first flange; 13, installation hole; 14, sealing groove; 2, inner connecting pipe; 3, sealing ring; 4, fastening bolt ; 5, sealing ring; 6, movable sleeve; 61, internal thread sleeve; 62, card slot; 7, external thread sleeve; 71, card hole.

Detailed ways:

Embodiment: As shown in Figures 1 and 2, a pipe connector on an exhaust gas purification device includes two sets of opposite pipe assemblies 10. The pipe assembly 10 is composed of an outer casing 1 and an inner connecting pipe 2. A first flange 12 is formed, and several installation holes 13 are formed on the first flange 12. A rectangular boss 11 is formed on the outer wall of the outer casing 1. The inner connecting pipe 2 is inserted into the outer casing 1. One end of the inner connecting pipe 2 A plurality of sealing rings 3 are inserted and fixed on the outer wall of the casing, and the sealing rings 3 are pressed against the inner wall of the outer sleeve 1, and the outer walls of the inner connecting pipe 2 adjacent to the sealing ring 3 are respectively formed with annular adjustment grooves 21, and the adjustment grooves 21 A fastening bolt 4 is inserted inside, and the fastening bolt 4 is screwed on the boss 11 of the outer casing 1, and the other end of the inner connecting pipe 2 is formed with a second flange 22; the inner connecting pipe 2 of a pipe assembly 10 is inserted into the There is a movable sleeve 6, and an internal thread sleeve 61 is formed on the outer ring of the movable sleeve 6, and an external thread sleeve 7 is inserted on the inner connecting pipe 2 of the other pipe assembly 10, and the external thread sleeve 7 is screwed into the inner surface of the movable sleeve 6. Inside the threaded sleeve 61 , a plurality of clamping grooves 62 are formed on the internally threaded sleeve 61 , and a plurality of clamping holes 71 are formed on the outer wall of the externally threaded sleeve 7 .

A sealing groove 14 is formed on the outer end surface of the first flange 12 on the outer sleeve 1 .

The width of the groove 31 of the inner connecting pipe 2 is greater than the diameter of the fastening bolt 4 .

The inner diameter of the outer casing 1 is equal to the outer diameter of the inner connecting pipe 2 .

There are at least two sealing rings on the inner connecting pipe 2; an annular groove is formed on the outer end surface of the second flange 22 of the inner connecting pipe 2, and a sealing ring 5 is inserted into the groove.

The internal diameter of described movable sleeve 6 is greater than the external diameter of inner connecting pipe 2, and the internal diameter of internal thread sleeve 61 on movable cover 6 is greater than the external diameter of second flange 22, and the internal diameter of external thread sleeve 7 is greater than the external diameter of internal connecting pipe 2.

The length of the internal thread sleeve 61 on the movable sleeve 6 is greater than twice the thickness of the second flange 22 .

The said card slot 62 is provided with at least three, the card slot 62 is uniformly distributed on the external thread sleeve 7 in a ring around the central axis of the external thread sleeve 7, and the clamp hole 71 is provided with at least three around the central axis of the internal thread sleeve 61. The rings are evenly distributed on the inner threaded sleeve 61 .

Working principle: the utility model is a pipe connector on the automobile exhaust purification equipment. Compared with the hose or corrugated pipe, its installation is more convenient and fast. Before installation, first connect the pipe assembly 10 with the exhaust pipe or the exhaust purification processor , and then go down to the car to realize the installation between the two pipe assemblies 10. During installation, the fastening bolt 4 is loosened first, and then the two inner pipes 2 are matched, and then the outer threaded sleeve 7 and the movable sleeve 6 are realized. fixed connection.

The embodiments are used to illustrate the utility model, but not to limit the utility model. Any person skilled in the art can modify the embodiments without violating the spirit and scope of the utility model, so the protection scope of the utility model should be as listed in the claims of the utility model.

Claims (8)

1. a kind of pipe connecting component on exhaust gas cleaner, including two groups of opposite tube assemblies (10), it is characterised in that：Pipe group Part (10) is made of outer tube (1) and inner connecting tube (2), and the outer end of outer tube (1) forms first flange (12), first flange (12) several mounting holes (13) are formed on, the boss (11) of rectangle is formed on the outer wall of outer tube (1), inner connecting tube (2) is inserted It is connected in outer tube (1), equal sleeve is fixed with several sealing rings (3) on the outer wall of inner connecting tube (2) one end, and sealing ring (3) is pressed against On the inner wall of outer tube (1), inner connecting tube (2) closes on the adjusting grooves that annular is separately formed on the outer wall of sealing ring (3) (21), fastening bolt (4) being plugged in adjusting grooves (21), fastening bolt (4) is screwed onto on the boss (11) of outer tube (1), The other end of inner connecting tube (2) forms second flange (22)；Inner connecting tube (2) upper sleeve of one tube assembly (10) has movable sleeve (6), inner screw sheath (61) is formed on the outer ring of movable sleeve (6), inner connecting tube (2) upper sleeve of another tube assembly (10) has outside Thread bush (7), external thread sleeve (7) are screwed onto in the inner screw sheath (61) of movable sleeve (6), are molded on the inner screw sheath (61) There are several card slots (62), several card holes (71) are formed on the outer wall of external thread sleeve (7).

2. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The outer tube (1) seal groove (14) is formed on the outer end face of first flange (12).

3. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The inner connecting tube (2) width of groove (31) is all higher than the diameter of fastening bolt (4).

4. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The outer tube (1) internal diameter is equal to the outer diameter of inner connecting tube (2).

5. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The inner connecting tube (2) sealing ring on is at least provided with twice；The groove of annular, ditch are formed on the outer end face of inner connecting tube (2) second flange (22) Sealing ring (5) is plugged in slot.

6. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The movable sleeve (6) internal diameter is more than the outer diameter of inner connecting tube (2), and the internal diameter of inner screw sheath (61) is more than second flange (22) on movable sleeve (6) Outer diameter, the internal diameter of external thread sleeve (7) are more than the outer diameter of inner connecting tube (2).

7. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The movable sleeve (6) length of inner screw sheath (61) is more than the thickness of (22) twice of second flange on.

8. the pipe connecting component on a kind of exhaust gas cleaner according to claim 1, it is characterised in that：The card slot (62) it sets there are three setting less, card slot (62) is evenly distributed on external thread sleeve (7) in a ring around the central axis of external thread sleeve (7) On, card hole (71) is set sets that there are three to be evenly distributed on inner screw sheath (61) in a ring around the central axis of inner screw sheath (61) less On.