CN210342160U - Drain pipe connecting device for municipal works - Google Patents

Abstract

The utility model provides a drain pipe connecting device for municipal engineering, which comprises a first drain pipe, a second drain pipe and a drain pipe connector, the drainage pipe connector comprises an outer shell which is a hollow annular cavity, a built-in gasket is sleeved on the inner wall of the outer shell, sealing rings are respectively arranged on two sides of the built-in gasket in an abutting mode, a fixing ring is respectively arranged on the outer edge of each sealing ring in an abutting mode, the outer shell, the built-in gasket, the sealing ring and the fixing ring are coaxially arranged, the outer wall of the outer shell is fixedly connected with a mounting piece shaped like a Chinese character 'ji', the mounting piece in the shape of Chinese character 'ji' is bent to form a folded lug which forms a cavity, a bolt pin is movably arranged in the cavity in a penetrating way, the folding lug is provided with an arc-shaped groove in a through mode, the arc-shaped groove is provided with a locking bolt, and the bolt and the bolt are fixedly installed together through the locking bolt. The utility model discloses can be convenient for drain pipe connection, make the connection of drain pipe more firm, safety, leakproofness good.

Description

Drain pipe connecting device for municipal works

Technical Field

The utility model relates to a tube coupling technical field, concretely relates to drain pipe connecting device for municipal works.

Background

The drainage system is the basis of urban construction development, shows the civilization and progress of cities, and is the premise for guaranteeing the normal operation of urban functions, along with the enlargement of urban scale in recent years, municipal drainage pipe networks age successively, the construction quality of new pipe networks is uneven, the road surface collapse caused by the leakage of the urban drainage pipe networks is caused by the leakage of the urban drainage pipe networks, linear cracks or reticular cracks are caused by light persons, partial road surface damage and collapse are caused by heavy persons, even large pits are generated, the accident of sinking vehicles and sinking persons is caused, and the life and property safety of passers are seriously threatened. In addition, problems such as ground drainage environmental pollution are also endless. The leakage of the joints of the drainage pipes is the most common problem of urban water supply and drainage systems, and the reduction of the leakage of the joints of the pipes and the guarantee of the waterproof safety of the joints of the pipes are important subjects for municipal construction departments and scientific and technological personnel.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the problem that a drain pipe connecting device for municipal works is provided.

In order to solve the technical problem, the utility model discloses a technical scheme is: a drain pipe connecting device for municipal engineering comprises a first drain pipe, a second drain pipe and a drain pipe connector, the drainage pipe connector comprises an outer shell which is a hollow annular cavity, a built-in gasket is sleeved on the inner wall of the outer shell, sealing rings are respectively arranged on two sides of the built-in gasket in an abutting mode, a fixing ring is respectively arranged on the outer edge of each sealing ring in an abutting mode, the outer shell, the built-in gasket, the sealing ring and the fixing ring are coaxially arranged, the outer wall of the outer shell is fixedly connected with a mounting piece shaped like a Chinese character 'ji', the mounting piece in the shape of Chinese character 'ji' is bent to form a folded lug which forms a cavity, a bolt pin is movably arranged in the cavity in a penetrating way, the folding lug is provided with an arc-shaped groove in a through mode, the arc-shaped groove is provided with a locking bolt, and the bolt and the bolt are fixedly installed together through the locking bolt.

Preferably, a plurality of positioning lugs are uniformly and fixedly arranged at the pipe end of the first drainage pipe, a plurality of positioning slotted holes are uniformly formed at the pipe end of the second drainage pipe, the size of each positioning lug is matched with that of each positioning slotted hole, and the outer diameter of the first drainage pipe is equal to that of the second drainage pipe.

Preferably, the drain pipe connector further comprises a support ring, and the support ring is provided with a V-shaped notch.

Preferably, the fixing ring is provided with a notch, and the outer diameter of the fixing ring is larger than the inner diameter of the outer shell.

Preferably, the inner circumference of the fixing ring is uniformly provided with tapered saw teeth, and the size of each tapered saw tooth is matched with the outer diameter of the first drain pipe and the outer diameter of the second drain pipe.

Preferably, the inner liner, the sealing ring and the fixing ring have outer diameters matched with the inner diameter of the outer shell.

Preferably, the inner lining is made of stainless steel.

Preferably, the material of the sealing ring is nitrile rubber.

The utility model has the advantages and positive effects that:

(1) the first drain pipe and the second drain pipe which need to be connected can be respectively inserted into two ends of the drain pipe connector through the mutual matching between the positioning convex block 13 and the positioning groove hole 14, so that a better positioning effect is achieved, and the first drain pipe and the second drain pipe are stably connected.

(2) The inner circumference of the fixing ring is uniformly provided with the conical sawteeth, the conical sawteeth can be tightly embedded into the surfaces of the first drain pipe and the second drain pipe to form uniform and tight extrusion force, and the material of the first drain pipe and the second drain pipe is not damaged, so that the drain pipe connector is ensured to bear larger axial force, and the normal working state can be still kept under the strong vibration state; the installation of the drainage pipe connector can be completed by screwing the locking bolt, and the operation is convenient.

(3) Through setting up two sealing washers, when screwing up locking bolt, two sealing washers extrude each other, provide dual safety guarantee for the drain pipe connection, and when internal pressure riseed, the sealing washer was folded and is pressed inseparabler, and sealed effect is better.

Drawings

FIG. 1 is an exploded view of a drain pipe connector of a municipal drainage pipe connection device according to the present invention;

FIG. 2 is a view showing a configuration of a drain pipe connector of a municipal drainage pipe connection apparatus according to the present invention;

FIG. 3 is a schematic front view of a connector of a municipal drainage pipe connector according to the present invention;

FIG. 4 is a side view of a drain pipe connector of a municipal drainage pipe connection apparatus according to the present invention;

FIG. 5 is a schematic structural view of a positioning projection and a positioning slot of the drainage pipe connecting device for municipal engineering according to the present invention;

FIG. 6 is a schematic structural view of a support ring of the municipal drainage pipe connection device of the present invention;

in the figure: 1-a first drain pipe; 2-a second drain pipe; 3-a drain pipe connector; 4-an outer shell; 5-an inner lining; 6-sealing ring; 7-fixing the ring; an 8-n mounting; 9-folding the lug; 10-bolt; 11-an arc-shaped groove; 12-a locking bolt; 13-positioning the bump; 14-positioning slot holes; 15-a support ring; a 16-V notch.

Detailed Description

For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.

As shown in fig. 1 to 6, the utility model provides a drain pipe connecting device for municipal works, which comprises a first drain pipe 1, a second drain pipe 2 and a drain pipe connector 3, wherein the drain pipe connector 3 comprises an outer shell 4, the outer shell 4 is a hollow annular cavity, an inner wall sleeve of the outer shell 4 is provided with an inner gasket 5, two sides of the inner gasket 5 are respectively provided with a sealing ring 6 in a butting manner, the outer edge of each sealing ring 6 is provided with a fixing ring 7 in a butting manner, the outer shell 4, the inner gasket 5, the sealing ring 6 and the fixing ring 7 are coaxially arranged, the outer wall of the outer shell 4 is fixedly connected with a mounting piece 8 in a shape like Chinese character 'ji', the mounting piece 8 in a bending manner forms a folded lug 9, the folded lug 9 forms a cavity, a bolt plug 10 is movably arranged in the cavity, the folded lug 9 is provided with an arc, the arc-shaped groove 11 is provided with a locking bolt 12, and the bolt inserted pin 10 is fixedly arranged together through the locking bolt 12.

The insert 5 protects the sealing ring 6 of the drain pipe connector 3 against mechanical and chemical loads and, in addition, serves to prevent the sealing ring 6 from swelling in the event of moisture, allowing, to a certain extent, a greater clearance between the ends of the first drain pipe 1 and the second drain pipe 2. The bolt insert 10 is threaded at its end to provide a greater tightening force to the entire drain connector 3 after tightening the bolt 12.

Further, a plurality of positioning lugs 13 are uniformly and fixedly arranged at the pipe end of the first drainage pipe 1, a plurality of positioning slot holes 14 are uniformly formed in the pipe end of the second drainage pipe 2, the size of each positioning lug 13 is matched with the size of each positioning slot hole 14, the outer diameter of the first drainage pipe 1 is equal to that of the second drainage pipe 2, the first drainage pipe 1 and the second drainage pipe 2 are connected in a plugging mode through matching between the positioning lugs 13 and the positioning slot holes 14, a good positioning effect is achieved, and therefore connection between the first drainage pipe 1 and the second drainage pipe 2 is stable.

Further, the drain pipe connector 3 further comprises a support ring 15, the support ring 15 is provided with a V-shaped notch 16, and the support ring 15 is placed at the tail ends of the two connected pipelines to play a supporting role, so that the problem of deformation of the pipelines can be effectively prevented.

Furthermore, the fixing ring 7 is provided with a gap, the outer diameter of the fixing ring 7 is larger than the inner diameter of the outer shell 4, and the gap formed by the fixing ring 7 can improve the supporting force and the tension applied by the fixing ring 7 to the drain pipe connector 3.

Furthermore, the inner circumference of the fixing ring 7 is uniformly provided with tapered saw teeth, the size of the tapered saw teeth is matched with the outer diameter size of the first drain pipe 1 and the outer diameter size of the second drain pipe 2, the tapered saw teeth can be tightly embedded into the surfaces of the first drain pipe 1 and the second drain pipe 2 to form uniform and tight extrusion force, and the material of the first drain pipe 1 and the second drain pipe 2 is not damaged, so that the drain pipe connector 3 is ensured to bear larger axial force, and the normal working state can be still kept under the strong vibration state.

Further, the outer diameter of the built-in lining 5, the outer diameter of the sealing ring 6 and the outer diameter of the fixing ring 7 are matched with the inner diameter of the outer shell 4, and the built-in lining 5, the sealing ring 6 and the fixing ring 7 can be conveniently and smoothly placed inside the outer shell 4 through the arrangement.

Further, the lining 5 is made of stainless steel, the stainless steel is suitable for working under high vacuum or high pressure, and different materials of the lining 5 can be selected according to actual requirements.

Furthermore, the sealing ring 6 is made of nitrile rubber, and the applicable temperature is in the range of-20 ℃ to +80 ℃; the outer shell 4 is made of ASI316Ti, and the high-temperature resistance is effectively improved.

The utility model discloses a theory of operation and working process as follows: when the drainage pipe connector is used, firstly, an operator inserts the end parts of a first drainage pipe 1 and a second drainage pipe 2 which need to be connected into two ends of the drainage pipe connector 3 respectively, the first drainage pipe 1 and the second drainage pipe 2 are inserted together through the mutual matching between the positioning lug 13 and the positioning slot 14 to play a better positioning role, so that the connection between the first drainage pipe 1 and the second drainage pipe 2 is stable, then, the operator can finish the installation of the drainage pipe connector by screwing the locking bolt 12, the inner circumference of the fixing ring 7 is uniformly provided with conical saw teeth which can be tightly embedded into the pipe surfaces of the first drainage pipe 1 and the second drainage pipe 2 to form uniform fastening extrusion force, the material of the pipe of the first drainage pipe 1 and the material of the second drainage pipe 2 are not damaged, and the drainage pipe connector 3 is ensured to bear larger axial force, the normal working state can be still kept under the strong vibration state; by arranging the two sealing rings 6, when the locking bolt is screwed down, the two sealing rings 6 are mutually extruded, double safety guarantee is provided for the connection of the drain pipe, and when the internal pressure is increased, the sealing rings are laminated more tightly, so that the sealing effect is better; because the first drain pipe 1 and the second drain pipe 2 are made of HDPE, the drain pipe connector 3 further includes a support ring 15, and the support ring 15 is placed at the ends of the two connected pipelines to play a supporting role, so as to effectively prevent the pipelines from deforming. The drain pipe connector 3 ensures that the first drain pipe 1 and the second drain pipe 2 can ensure the best sealing effect under low and high working pressure, so that the drain pipes are connected more firmly and safely.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims (8)

1. The utility model provides a drain pipe connecting device for municipal works, characterized in that includes first drain pipe (1), second drain pipe (2) and drain pipe connector (3), drain pipe connector (3) are including shell body (4), shell body (4) set up to hollow annular cavity, the inner wall cover of shell body (4) is established and is installed built-in facing (5), sealing washer (6) are all installed to built-in facing (5) both sides to closing, and every the outer fringe of sealing washer (6) all is provided with solid fixed ring (7) to closing, shell body (4), built-in facing (5), sealing washer (6) and gu fixed ring (7) coaxial setting, the outer wall fixedly connected with of shell body (4) nearly font installed part (8), nearly font installed part (8) are buckled and are formed ear of folding (9), ear of folding (9) form the cavity, bolt (10) are worn to be equipped with in the cavity activity, it is provided with arc wall (11) to link up to roll over ear (9), locking bolt (12) are installed in arc wall (11), bolt (10) are passed through locking bolt (12) fixed mounting is in the same place.

2. The drain pipe connecting device for municipal engineering according to claim 1, wherein the pipe end of the first drain pipe (1) is uniformly and fixedly provided with a plurality of positioning projections (13), the pipe end of the second drain pipe (2) is uniformly provided with a plurality of positioning slots (14), the positioning projections (13) are matched with the positioning slots (14), and the outer diameter of the first drain pipe (1) is equal to the outer diameter of the second drain pipe (2).

3. The drain connection device for municipal engineering according to claim 1, wherein the drain connector (3) further comprises a support ring (15), the support ring (15) being notched with a V-shape (16).

4. The municipal drainage pipe connection device according to claim 1, wherein the fixing ring (7) is notched, and the outer diameter of the fixing ring (7) is larger than the inner diameter of the outer housing (4).

5. A municipal drainage pipe connection according to claim 1, wherein the inner circumference of the fixing ring (7) is uniformly provided with tapered serrations having a size matching the outer diameter of the first drainage pipe (1) and the outer diameter of the second drainage pipe (2).

6. The municipal drainage pipe connection according to claim 1, wherein the outside diameter of the inner gasket (5), the sealing ring (6) and the fixing ring (7) are matched to the inside diameter of the outer housing (4).

7. A municipal drainage pipe connection according to claim 1, wherein the inner liner (5) is made of stainless steel.

8. The municipal drainage pipe connection device according to claim 1, wherein the gasket (6) is made of nitrile rubber.

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