CN212840109U - Connecting pipe - Google Patents

Abstract

The utility model provides a connecting pipe belongs to pipe fitting technical field. The connecting pipe structure solves the problems that the existing connecting pipe structure is poor in stability, easy to damage and leak when being clamped by a tool and short in service life. This takeover is provided with the outer hexagon clamping part that makes things convenient for the body rotation operation including being pipy body on the body, and protruding hexagon shape is protruding in this outer hexagon clamping part forms through six extruded modes simultaneously, this internal filter screen that is provided with between outer hexagon clamping part and the external screw thread, is provided with the stop device that can prevent the filter screen at this internal axial float between filter screen and the body. The utility model has the advantages of reasonable design, simply, the holistic mechanical strength of body is high, and structural stability is good, and difficult damaged leakage can filter assembly convenient to use.

Description

Connecting pipe

Technical Field

The utility model belongs to the technical field of the pipe fitting, a take over is related to.

Background

China is a large water-using country of the broad population, water resources are short, but the phenomenon of water drop leakage is often neglected, the current water meter has little water flow due to the problem of metering precision, particularly, the water meter cannot meter in a water dropping state, so that the people who escape from the water meter can not cause large loss to a water supply company when one or two households adopt a water dropping mode to receive water to escape from the water meter for metering, but if a plurality of households imitate the water loss of the water supply company. It is conceivable that this will cause a large loss of water resources and national finances, and the key is that the connection between the water meter and the water meter connection pipe is not sealed. The reason for the unsealed connection between the water meter and the water meter connecting pipe is as follows: the installation of the tap water meter and the laying of the tap water pipeline are not carried out simultaneously, the installation position and the installation length of the tap water meter are reserved in advance when the tap water pipeline is laid, the water meter is generally installed by a tap water company, and the water meter is connected with the tap water pipeline by adopting a connecting pipe; the connecting pipe is made of hard rigid pipe material, so that the installation is troublesome, and metal products are easy to rust after being soaked in water for a long time, so that the connecting parts of the water meter connecting pipe, the water meter and the tap water pipe are not smooth, the screw is not rotated, and gaps appear on the connecting parts related to the water meter.

In view of the above situation, people improve the connection pipe, and some have applied for patents, for example, chinese patent literature discloses a water meter connection pipe [ application number: 201120198037.1, respectively; authorization notice number: CN202101721U ], which comprises a connection tube body, wherein the connection tube body is provided with a first interface for communicating with a water meter and a second structure for communicating with a tap water pipe, the connection tube body is provided with a screwing part, and the peripheral surface of the screwing part is cut with at least two grinding planes arranged in equal radian.

In actual manufacturing, the grinding plane is used for clamping a tool, so that the adapter body can be conveniently rotated for screw connection, but the grinding plane is formed by cutting the peripheral surface of the screwing part, the density of the grinding plane is the same as that of the adapter body, the mechanical strength is low, the structural stability is poor, the adapter body is easy to damage and leak during tool clamping, and the service life is short; in addition, the filter device is not arranged in the connecting pipe body, and impurities contained in the water quality in the tap water pipe easily influence the normal metering of the water meter, so the use is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, mechanical strength are high, and structural stability is high, can filter, assembles convenient to use's takeover.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a connecting pipe, is including being pipy body, the tip of the one end of body have the edge of turning up, the outer wall of the other end of body have the external screw thread, this body is used for through the external screw thread with pipe fitting screwed connection, its characterized in that, the body on be provided with the outer hexagon clamping part that makes things convenient for the body rotation operation, protruding hexagon shape in this outer hexagon clamping part forms through six extruded modes simultaneously, this internal filter screen that is provided with between outer hexagon clamping part and the external screw thread, filter screen and body between be provided with the stop device that can prevent the filter screen at this internal axial float.

The outer hexagonal clamping part of the connecting pipe is in an inward convex hexagonal shape by means of six-side simultaneous extrusion, so that the integral mechanical strength of the body is high, the structural stability is good, and the body is not easy to damage and leak; set up the filter screen in this body, make things convenient for filtration quality of water, set up stop device, can prevent effectively that the filter screen is axial drunkenness in this body, stable in structure, long service life.

In the above-mentioned adapter, the density of the outer hexagonal clamp portion is greater than that of the body. The purpose of setting up like this is that the mechanical strength that makes the wall thickness of outer hexagon clamping part is higher through the extrusion, increases the holistic mechanical strength of body, and structural stability is high, long service life.

In the above pipe joint, each single face of the outer hexagonal clamping part is a rectangular face, and both ends of each single face of the outer hexagonal clamping part are in oblique transition with the body. The purpose of setting up like this is that each single face and the body of making outer hexagon clamping part are better to be linked up, prevents that body and each single face of outer hexagon clamping part from forming the fracture mark, stable in structure, long service life.

In the above adapter, the filter screen comprises an annular frame and a conical net fixedly connected with the annular frame, the outer diameter of the annular frame is matched with the inner diameter of the body, the annular frame is coaxially arranged in the body, and the annular frame and the inner wall of the outer hexagonal clamping part are abutted and matched. The purpose of this arrangement is to effectively prevent the annular frame from shifting in the direction of the outer hexagonal clamping portion.

In foretell takeover, stop device include the rubber spacing ring, the inner wall of body on be provided with and inlay and establish the groove, the rubber spacing ring inlay locate and inlay and establish the groove in, when the ring frame sets up in this internal with the axial, the rear end terminal surface axial of this rubber spacing ring and ring frame leans on the cooperation. The purpose of this setting is can effectively prevent annular frame towards the direction drunkenness of keeping away from outer hexagon clamping part. When the annular frame and the inner wall of the outer hexagonal clamping part are abutted and matched, the outer wall of the front end of the annular frame and the inner wall of the outer hexagonal clamping part are obliquely abutted and matched.

In the above adapter, the inner wall of the cross section of the rubber retaining ring is an arc-shaped wall. The purpose that sets up like this is when the ring frame passes in the rubber spacing ring, makes things convenient for the outer wall of ring frame and the inner wall of rubber spacing ring to lean on deformation, makes things convenient for the assembly.

In foretell takeover, the outer wall at the middle part of body on still can dismantle and link firmly rubber and lean on the ring, this rubber is leaned on the ring and is located the terminal position of external screw thread, when the body is used for with pipe fitting screwed connection, this rubber is leaned on the ring and is used for leaning on with pipe fitting elasticity. The purpose that sets up like this makes body and pipe fitting spiral connection structure more stable, prevents that body and pipe fitting spiral from becoming flexible, long service life.

In the above adapter, the outer wall of the body is provided with an annular assembling groove, the inner wall of the rubber abutting ring is provided with an annular assembling ring, and the annular assembling ring of the rubber abutting ring is in clamping fit with the annular assembling groove of the body. The purpose that sets up like this makes things convenient for rubber to lean on ring and body can dismantle and link firmly, convenient assembly.

In the above pipe joint, each single face of the outer hexagonal clamping portion is adhered with a rubber friction plate, and the rubber friction plate and each single face of the outer hexagonal clamping portion are matched in size and shape. The purpose of this arrangement is to increase the clamping friction of each single face of the outer hexagonal clamping part, and the structure is stable.

In the above adapter, the port at one end of the body is chamfered to form a flare. The purpose of setting up like this is the axial assembly of one end of convenient body and other parts, and convenient assembling.

Compared with the prior art, the connecting pipe has the advantages that: structural design is reasonable, simple, and the holistic mechanical strength of body is high, and structural stability is good, and difficult damaged leakage can filter, assembly convenient to use.

Drawings

Fig. 1 is a schematic sectional structure view of the present joint pipe.

Fig. 2 is a schematic perspective view of the adapter tube when the annular mounting ring is not assembled.

In the figure, 1, a body; 2. turning out the edges; 3. an external thread; 4. an outer hexagonal clamping portion; 5. an annular frame; 6. a conical mesh; 7. a rubber limit ring; 8. a rubber abutment ring; 9. an annular mounting ring; 10. a rubber friction plate; 11. a flaring shape.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the pipe joint mainly comprises a tubular body 1, wherein an end part of one end of the body 1 is provided with an outwards-turned edge 2, the outer wall of the other end of the body 1 is provided with an external thread 3, the body 1 is used for being in threaded connection with a pipe fitting through the external thread 3, an external hexagonal clamping part 4 which facilitates the rotating operation of the body 1 is arranged on the body 1, the external hexagonal clamping part 4 forms an internal convex hexagonal shape through six-sided simultaneous extrusion, and the density of the external hexagonal clamping part 4 is greater than that of the body 1; each single face of the outer hexagonal clamping part 4 is a rectangular face, and two ends of each single face of the outer hexagonal clamping part 4 are in inclined transition with the body 1.

When actually making, be provided with the filter screen in this body 1 between this outer hexagon clamping part 4 and the external screw thread 3, specifically say, this filter screen's concrete implementation structure is: mainly by the toper net 6 that annular frame 5 and annular frame 5 linked firmly, the outer diameter of annular frame 5 and the inner diameter adaptation of body 1, annular frame 5 sets up in body 1 with the axial, and the cooperation is supported by the inner wall of this annular frame 5 and outer hexagon clamping part 4.

During actual manufacturing, a limiting device capable of preventing the filter screen from axially moving in the body 1 is arranged between the filter screen and the body 1; the specific implementation mode of the limiting device is as follows: the rubber limiting ring mainly comprises a rubber limiting ring 7, an embedding groove is formed in the inner wall of the body 1, the rubber limiting ring 7 is embedded in the embedding groove, and when the annular frame 5 is coaxially arranged in the body 1, the rubber limiting ring 7 and the rear end face of the annular frame 5 are axially abutted and matched; the inner wall of the cross section of the rubber spacing ring 7 is an arc-shaped wall.

In practical application, the outer wall of the middle part of the body 1 can be detachably and fixedly connected with a rubber abutting ring 8, the rubber abutting ring 8 is positioned at the tail end of the external thread 3, and when the body 1 is in spiral connection with a pipe fitting, the rubber abutting ring 8 is used for elastically abutting against the pipe fitting; specifically speaking: the concrete assembling structure of the rubber abutting ring 8 is as follows: an annular assembling groove is formed in the outer wall of the body 1, an annular assembling ring 9 is arranged on the inner wall of the rubber abutting ring 8, and the annular assembling ring 9 of the rubber abutting ring 8 is matched with the annular assembling groove of the body 1 in a clamping mode.

During actual manufacturing, a rubber friction plate 10 is respectively adhered to each single face of the outer hexagonal clamping part 4, and the size and the shape of each single face of the rubber friction plate 10 and each single face of the outer hexagonal clamping part 4 are matched; the port at one end of the body 1 is chamfered to form a flare 11.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a connecting pipe, is including being pipy body (1), the tip of the one end of body (1) have turn over outward along (2), the outer wall of the other end of body (1) have external screw thread (3), this body (1) be used for with pipe fitting screwed connection through external screw thread (3), its characterized in that, body (1) on be provided with outer hexagon clamping part (4) that makes things convenient for body (1) rotation operation, protruding hexagon shape in this outer hexagon clamping part (4) forms through six extruded modes simultaneously, body (1) between outer hexagon clamping part (4) and hexagonal external screw thread (3) in be provided with the filter screen, filter screen and body (1) between be provided with the stop device that can prevent the filter screen axial float in body (1).

2. A nozzle according to claim 1, wherein the density of said outer hexagonal gripping portion (4) is greater than the density of the body (1).

3. A joint as claimed in claim 2, wherein each single face of the outer hexagonal gripping portion (4) is rectangular, and both ends of each single face of the outer hexagonal gripping portion (4) are in inclined transition with the body (1).

4. A nozzle according to claim 3, wherein the filter comprises a ring frame (5) and a tapered net (6) fixedly connected to the ring frame (5), the outer diameter of the ring frame (5) is adapted to the inner diameter of the body (1), the ring frame (5) is coaxially arranged in the body (1), and the ring frame (5) and the inner wall of the outer hexagonal clamping portion (4) are in abutting engagement.

5. A connecting pipe according to claim 4, characterized in that the limiting device comprises a rubber limiting ring (7), an embedding groove is arranged on the inner wall of the body (1), the rubber limiting ring (7) is embedded in the embedding groove, and when the annular frame (5) is coaxially arranged in the body (1), the rear end face of the rubber limiting ring (7) and the rear end face of the annular frame (5) are axially abutted and matched.

6. A connecting pipe according to claim 5, characterized in that the inner wall of the cross-section of the rubber retaining ring (7) is an arc-shaped wall.

7. A nozzle according to claim 6, characterised in that the outer wall of the central portion of the body (1) is detachably connected to a rubber abutment ring (8), the rubber abutment ring (8) being located at the end of the external thread (3), the rubber abutment ring (8) being adapted to be resiliently abutted against the pipe when the body (1) is adapted to be screwed onto the pipe.

8. A connecting pipe according to claim 7, characterized in that the outer wall of the body (1) is provided with an annular assembling groove, the inner wall of the rubber abutting ring (8) is provided with an annular assembling ring (9), and the annular assembling ring (9) of the rubber abutting ring (8) is in clamping fit with the annular assembling groove of the body (1).

9. A connecting pipe according to claim 8, characterized in that a rubber friction piece (10) is bonded to each single face of the outer hexagonal clamp portion (4), and the rubber friction piece (10) and each single face of the outer hexagonal clamp portion (4) are adapted in size and shape.

10. A nozzle according to claim 8, wherein the body (1) is formed with a flared end (11) by port squaring at one end.

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