CN223511687U - Simple waterproof mechanism - Google Patents

Abstract

The utility model discloses a simple waterproof mechanism, which comprises a first pipe joint sleeve, a second pipe joint sleeve and a third pipe joint sleeve, wherein opposite ends of the first pipe joint sleeve and the second pipe joint sleeve are connected with pipelines, an outer annular inclined surface is arranged at the outer side of one end of the first pipe joint sleeve facing the second pipe joint sleeve, an inner annular inclined surface matched with the outer annular inclined surface is arranged at the inner side of one end of the second pipe joint sleeve facing the first pipe joint sleeve, the ends of the first pipe joint sleeve and the second pipe joint sleeve are butted, in the process, the third pipe joint sleeve is rotated to form firm screw thread sleeve connection with the first pipe joint sleeve, and after the completion, the inner annular inclined surface is tightly abutted with the outer annular inclined surface and a trapezoid sealing ring at the front end, so that the sealing area and the sealing effect between joints are greatly increased, and meanwhile, the phenomena of internal overflow, extrusion and extravasation caused by uneven stress of a radial contact surface in the traditional flange connection are avoided.

Description

Simple waterproof mechanism

Technical Field

The utility model relates to the technical field of pipeline movable joints, in particular to a simple waterproof mechanism.

Background

The water transmission pipeline refers to a pipeline system from a water source to a water plant or from the water plant to a water distribution network when the water plant is far from a water supply area, such as a municipal sewage pipeline, a tap water supply pipeline, an industrial water transmission pipeline, and the like. At present, in an industrial production water transmission pipeline, a plurality of movable joints are often needed to connect two pipeline ends, but in practical application, the conventional pipeline movable joints mostly adopt flanges and are matched with bolts and sealing gaskets to be connected, but partial bolts at the flange connection part are loosened due to the conditions of equipment vibration, position change and the like in the long-term use process, gaps are easily formed at the edge of the sealing gaskets once loosening occurs, leakage is caused, and internal overflow, extrusion and extravasation can also occur due to uneven stress of radial contact surfaces of the flanges in the use process.

Disclosure of utility model

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

Therefore, the utility model aims to provide a simple waterproof mechanism, which solves the problems that the prior pipeline movable joint provided in the prior art can cause partial bolt looseness at the flange joint due to equipment vibration, position change and the like in the long-term use process, the edge of a sealing gasket is easy to generate gaps once looseness occurs, leakage is caused, and internal overflow, extrusion and extravasation can occur due to uneven stress of the radial contact surface of the flange in the use process.

The simple waterproof mechanism comprises a first pipe joint sleeve, a second pipe joint sleeve and a third pipe joint sleeve, wherein opposite ends of the first pipe joint sleeve and the second pipe joint sleeve are respectively connected with a pipeline, an outer annular inclined surface is arranged at the outer side of one end of the first pipe joint sleeve facing the second pipe joint sleeve, a trapezoid sealing ring sleeve is arranged at the outer side and the front end of the outer annular inclined surface in a matching manner, an inner annular inclined surface matched with the outer annular inclined surface is arranged at the inner side of one end of the second pipe joint sleeve facing the first pipe joint sleeve, a third pipe joint sleeve is arranged at the outer side of the second pipe joint sleeve in a radial sliding manner, a thread sleeve is arranged between the inner side of one end of the third pipe joint sleeve and the outer side of the first pipe joint sleeve, and a locking screw is inserted between the outer end of the third pipe joint sleeve and the first pipe joint sleeve.

As a preferable scheme of the simple waterproof mechanism, the surface of the outer annular inclined surface is also provided with a concave groove matched with the trapezoid sealing ring sleeve, and the inclination angles of the outer annular inclined surface, the trapezoid sealing ring sleeve and the inner annular inclined surface are the same;

Wherein, the peripheral side of the trapezoid sealing ring sleeve is also provided with a plurality of annular convex lines.

As a preferable scheme of the simple waterproof mechanism, the outer peripheral side of the first pipe joint sleeve is provided with external thread which is adjacently connected with the outer annular inclined plane, and the inner side of one end of the third pipe joint sleeve is provided with internal thread which is matched with the external thread.

As a preferable scheme of the simple waterproof mechanism, the outer side of the first pipe joint sleeve is also provided with at least one positioning screw hole I, the outer side of the third pipe joint sleeve is also provided with a positioning screw hole II corresponding to the positioning screw hole I, and the locking screw is in threaded match with the positioning screw hole I and the positioning screw hole II.

As a preferable scheme of the simple waterproof mechanism, the outer peripheral side of the second pipe joint sleeve is provided with an annular clamping block, and the inner side of the third pipe joint sleeve is provided with an annular clamping groove matched with the annular clamping block.

As a preferable scheme of the simple waterproof mechanism, the inner side of the opposite end of the first pipe joint sleeve, which is positioned on the outer annular inclined plane, is provided with a positioning pipe groove I, and the inner side of the opposite end of the second pipe joint sleeve, which is positioned on the inner annular inclined plane, is provided with a positioning pipe groove II matched with the positioning pipe groove I.

Compared with the prior art, the simple waterproof mechanism has the beneficial effects that the ends of the first pipe joint sleeve and the second pipe joint sleeve are butted, in the process, the third pipe joint sleeve is rotated to form firm threaded sleeve connection with the first pipe joint sleeve, the inner annular inclined surface is tightly abutted with the outer annular inclined surface and the trapezoid sealing ring sleeve at the front end after the completion, so that the sealing area and the sealing effect between joints are greatly increased, meanwhile, the phenomena of internal overflow, extrusion and extravasation caused by uneven stress of the radial contact surface in the traditional flange connection are avoided, and then the locking screw is screwed into the positioning screw hole II and the positioning screw hole I in sequence, so that the threaded rotary loosening is effectively generated between the first pipe joint sleeve and the third pipe joint sleeve, the clamping force of the locking screw is tighter when the rotary force is larger, the leakage caused by the loosening of the threads due to the traditional flange connection is effectively prevented and reduced, and the connecting mechanism is simple in operation and has an obvious waterproof effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the utility model after being integrally connected;

FIG. 2 is a schematic view of the pipe joint sleeve of the present utility model after disassembly;

FIG. 3 is a schematic side view of the inner structure of the pipe joint sleeve of the present utility model;

Fig. 4 is a schematic view of the partial detail of fig. 3 according to the present utility model.

100, A first pipe joint sleeve; 110, an outer annular inclined plane, 120, a trapezoid sealing ring sleeve, 121, an annular convex line, 130, an external thread, 140, a first positioning screw hole, 150, a first positioning pipe groove, 200, a second pipe sleeve, 210, an inner annular inclined plane, 220, an annular clamping block, 230, a second positioning pipe groove, 300, a third pipe sleeve, 310, an internal thread, 320, an annular clamping groove, 330, a second positioning screw hole, 400 and a locking screw.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Fig. 1 to 4 show the overall structure of a simple waterproof mechanism of the present utility model, referring to fig. 1 to 4, the simple waterproof mechanism of the present embodiment includes a first pipe sleeve 100, a second pipe sleeve 200 and a third pipe sleeve 300, opposite ends of the first pipe sleeve 100 and the second pipe sleeve 200 are connected with pipes, an outer annular inclined surface 110 is provided on an outer side of an end of the first pipe sleeve 100 facing the second pipe sleeve 200, a trapezoid sealing ring sleeve 120 is provided on an outer side and a front end matching sleeve of the outer annular inclined surface 110, an inner annular inclined surface 210 matching with the outer annular inclined surface 110 is provided on an inner side of an end of the second pipe sleeve 200 facing the first pipe sleeve 100, a third pipe sleeve 300 is provided on an outer side of the second pipe sleeve 200, a threaded sleeve is provided between an inner side of an end of the third pipe sleeve 300 and an outer side of the first pipe sleeve 100, and a locking screw 400 is inserted between an outer end of the third pipe sleeve 300 and the first pipe sleeve 100.

The surface of the outer annular inclined plane 110 is also provided with a concave groove matched with the trapezoid sealing ring sleeve 120, the inclination angles of the outer annular inclined plane 110, the trapezoid sealing ring sleeve 120 and the inner annular inclined plane 210 are the same, and the peripheral side of the trapezoid sealing ring sleeve 120 is also provided with a plurality of annular convex lines 121. The linear sealing effect of the trapezoid sealing ring sleeve 120 can be effectively increased through the annular convex lines 121. The first coupling sleeve 100 has an external thread 130 on the outer circumferential side thereof, which is adjacently engaged with the outer circumferential inclined surface 110, and the third coupling sleeve 300 has an internal thread 310 on the inner side of one end thereof, which is matched with the external thread 130. The outer side of the first pipe joint sleeve 100 is also provided with at least one first positioning screw hole 140, the outer side of the third pipe joint sleeve 300 is also provided with a second positioning screw hole 330 corresponding to the first positioning screw hole 140, and the locking screw 400 is in threaded matching with the first positioning screw hole 140 and the second positioning screw hole 330. During connection, the ends of the first pipe joint sleeve 100 and the second pipe joint sleeve 200 are butted, in the process, the third pipe joint sleeve 300 is rotated to form firm threaded sleeve connection with the first pipe joint sleeve 100, after the completion, the inner annular inclined surface 210 is tightly butted with the surface of the outer annular inclined surface 110 and the trapezoid sealing ring 120 at the front end, so that the sealing area and the sealing effect between the joints are greatly increased, meanwhile, the phenomena of internal overflow, extrusion and extravasation caused by uneven stress on the radial contact surface in the traditional flange connection are avoided, and then the locking screw 400 is screwed into the positioning screw hole II 330 and the positioning screw hole I140 in sequence, so that the screw rotation loosens between the first pipe joint sleeve 110 and the third pipe joint sleeve 300 effectively, the clamping force of the locking screw 400 is tighter when the rotation force is larger, the leakage caused by the loosening of the screw threads due to the traditional flange connection is effectively prevented and reduced.

Preferably, the second pipe joint sleeve 200 has an annular clamping block 220 on the outer circumference side, and the third pipe joint sleeve 300 has an annular clamping groove 320 matched with the annular clamping block 220 on the inner side. It will be appreciated that by providing an effective fit between the first, second and third tube sleeves with a circumferentially sliding fit between the annular clip 220 and the annular clip groove 320, the connection is more secure.

Preferably, the first pipe joint sleeve 100 is provided with a first positioning pipe groove 150 at the inner side of the opposite end of the outer annular inclined surface 110, and the second pipe joint sleeve 200 is provided with a second positioning pipe groove 230 matched with the first positioning pipe groove 150 at the inner side of the opposite end of the inner annular inclined surface 210. It will be appreciated that the inner diameters of the first and second positioning grooves 150 and 230 are generally the same, since the pipes of the same diameter are required to be joined, it should be noted that the inner diameters of the pipes are matched with the inner diameters of the first and second pipe sleeves 100 and 200 or are larger than the inner diameters of the first and second pipe sleeves 100 and 200 to ensure the smoothness of the water flow.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (6)

1. The simple waterproof mechanism is characterized by comprising a first pipe connecting sleeve (100), a second pipe connecting sleeve (200) and a third pipe connecting sleeve (300), wherein opposite ends of the first pipe connecting sleeve (100) and the second pipe connecting sleeve (200) are connected with pipelines, an outer annular inclined surface (110) is arranged on the outer side of one end of the first pipe connecting sleeve (100) facing the second pipe connecting sleeve (200), a trapezoid sealing ring sleeve (120) is arranged on the outer side and the front end of the outer annular inclined surface (110) in a matched mode, an inner annular inclined surface (210) matched with the outer annular inclined surface (110) is arranged on the inner side of one end of the second pipe connecting sleeve (200) facing the first pipe connecting sleeve (100), a third pipe connecting sleeve (300) is arranged on the outer side of the second pipe connecting sleeve (200) in a radial sliding mode, a threaded sleeve is connected between the inner side of one end of the third pipe connecting sleeve (300) and the outer side of the first pipe connecting sleeve (100), and a locking screw (400) is arranged between the outer end of the third pipe connecting sleeve (300) and the first pipe connecting sleeve (100).

2. The simple waterproof mechanism of claim 1, wherein the surface of the outer annular inclined surface (110) is also provided with a concave groove matched with the trapezoid sealing ring sleeve (120), and the inclination angles of the outer annular inclined surface (110), the trapezoid sealing ring sleeve (120) and the inner annular inclined surface (210) are the same;

The outer peripheral side of the trapezoid sealing ring sleeve (120) is also provided with a plurality of annular ribs (121).

3. The simple waterproof mechanism according to claim 1, wherein the outer peripheral side of the first pipe joint sleeve (100) is provided with external thread (130) which is adjacently connected with the outer annular inclined surface (110), and the inner side of one end of the third pipe joint sleeve (300) is provided with internal thread (310) which is matched with the external thread (130).

4. The simple waterproof mechanism of claim 1, wherein the outer side of the first pipe joint sleeve (100) is further provided with at least one first positioning screw hole (140), the outer side of the third pipe joint sleeve (300) is further provided with a second positioning screw hole (330) corresponding to the first positioning screw hole (140), and the locking screw (400) is in threaded fit with the first positioning screw hole (140) and the second positioning screw hole (330).

5. The simple waterproof mechanism according to claim 1, wherein the second pipe joint sleeve (200) is provided with an annular clamping block (220) at the outer peripheral side, and the inner side of the third pipe joint sleeve (300) is provided with an annular clamping groove (320) matched with the annular clamping block (220).

6. The simple waterproof mechanism as set forth in claim 1, wherein the first pipe joint sleeve (100) is provided with a first positioning pipe groove (150) at the inner side of the opposite end of the outer annular inclined surface (110), and the second pipe joint sleeve (200) is provided with a second positioning pipe groove (230) matched with the first positioning pipe groove (150) at the inner side of the opposite end of the inner annular inclined surface (210).